TECHNICAL DATA
&
SERVICE MANUAL
FILE NO.
XH2442 / CH2442 KH2442 / CH2442
XH3642 / CH3642 KH3642 / CH3642
XH4242 / CH4242
TH2442 / CH2442 UH2442 / CH2442
TH3642 / CH3642 UH3642 / CH3642
TH4242 / CH4242
SPLIT SYSTEM AIR CONDITIONER
Section
INDOOR MODEL No.
XH2442
PRODUCT CODE No.
854 017 11
854 017 12
854 017 13
854 017 14
854 017 15
854 017 16
854 017 07
854 017 08
854 017 19
854 017 20
OUTDOOR MODEL No.
CH2442
PRODUCT CODE No.
854 017 21
1
XH3642
CH3642
854 017 22
XH4242
CH4242
854 017 23
TH2442
TH3642
TH4242
KH2442
KH3642
2
3
4
5
UH2442
UH3642
Indoor Unit
Outdoor Unit
TH2442
TH3642
TH4242
CH2442
XH2442
XH3642
XH4242
UH2442
UH3642
KH2442
KH3642
CH3642
CH4242
85464849182000
REFERENCE NO. SM830082
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WHO SHOULD USE THIS MANUAL
This service manual is made to assist the service technician apply his knowledge and training
to this model air conditioner. This manual is written both for experienced service persons
and those who are new to air conditioning service. To help those with less experience or
who are new to this kind of unit we have included more explanations of basic procedures in
simple language than is usual in some service manuals. The experienced technician will of
course find he knows many of these things already and can go directly to the procedures and
information he needs; the less experienced technician will better understand what to do even
before he arrives on the job, and therefore be better able to work by himself as well as assist
the more experienced technician.
TABLE OF CONTENTS
1. SPECIFICATIONS............................................................................................ I - 1
1-1 Unit Specifications .....................................................................................I - 2
1-2 Major Component Specifications ...............................................................I - 12
(A) Indoor Units ..................................................................................................I - 12
(B) Outdoor Units ...............................................................................................I - 22
1-3 Other Component Specifications ...............................................................I - 25
1-4 Dimensional Data ......................................................................................I - 38
(A) Indoor Units ..................................................................................................I - 38
(B) Outdoor Units ...............................................................................................I - 47
1-5 Refrigerant Flow Diagram..........................................................................I - 49
1-6 Operating Range .......................................................................................I - 50
1-7 Cooling Capacity........................................................................................I - 51
1-8 Heating Capacity .......................................................................................I - 71
1-9 Performance Charts...................................................................................I - 72
1-10 Noise Criterion Curves...............................................................................I - 90
1-11 Increasing the Fan Speed..........................................................................I - 95
1-12 Air throw Distance Chart............................................................................I - 96
1-13 Installation Instructions ..............................................................................I - 99
2. PROCESSES AND FUNCTIONS ......................................................................II - 1
2-1 Room Temperature Control ......................................................................II - 2
2-2 Cold Draft Prevention (Heating Cycle)......................................................II - 4
2-3 Automatic Fan Speed (Indoor Unit) ..........................................................II - 5
2-4 Outdoor Fan Speed Control......................................................................II - 6
2-5 Freeze Prevention (Cooling).....................................................................II - 7
2-6 Condensing Temperature Control (Cooling).............................................II - 8
SM830082
ii
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2-7 Overload Protection (Heating) ..................................................................II - 9
2-8 Discharge Temperature Control (Cooling and Heating) ...........................II - 10
2-9 Auto. Mode for Automatic Heating/Cooling Switching ..............................II - 11
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating) ....................II - 13
2-11 4-Way Valve, Solenoid Control.................................................................II - 14
2-12 Automatic Restart after Power Interruption...............................................II - 15
2-13 Electronic Expansion Control Valve..........................................................II - 16
2-14 Compressor Discharge Gas Temperature................................................II - 16
2-15 Compressor Current Detection Circuit......................................................II - 17
2-16 Electronic Expansion Valve ......................................................................II - 18
2-17 Voltage Detection Control.........................................................................II - 19
3. ELECTRICAL DATA ........................................................................................III - 1
3-1 Indoor Unit (Electric Wiring Diagram, Schematic Diagram).....................III - 2
3-2 Outdoor Unit (Electric Wiring Diagram, Schematic Diagram) ..................III - 12
4. SERVICE PROCEDURES............................................................................... IV - 1
4-1 Troubleshooting ...................................................................................... IV - 2
4-2 Checking the Electrical Components...................................................... IV - 30
SM830082
iii
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1. SPECIFICATIONS
1-1 Unit Specifications ................................................................................. I -
4-Way Air Discharge Semi-concealed Type ...........................................I -
Ceiling Mounted Type..............................................................................I -
Concealed Duct Type ..............................................................................I -
2
2
5
8
Wall-Mounted Type..................................................................................I - 10
1-2 Major Component Specifications .............................................................I - 12
(A) Indoor Units ........................................................................................I - 12
(B) Outdoor Units .....................................................................................I - 22
1-3 Other Component Specifications .............................................................I - 25
4-Way Air Discharge Semi-concealed Type ...........................................I - 25
Ceiling Mounted Type..............................................................................I - 28
Concealed Duct Type ..............................................................................I - 31
Wall-Mounted Type..................................................................................I - 33
Outdoor Units...........................................................................................I - 35
1-4 Dimensional Data ....................................................................................I - 38
(A) Indoor Units ........................................................................................I - 38
4-Way Air Discharge Semi-concealed Type....................................... I - 38
Ceiling Mounted Type ........................................................................I - 40
Concealed Duct Type.........................................................................I - 42
Wall-Mounted Type ............................................................................I - 45
(B)Outdoor Units .....................................................................................I - 47
1-5 Refrigerant Flow Diagram ........................................................................I - 49
1-6 Operating Range .....................................................................................I - 50
1-7 Cooling Capacity......................................................................................I - 51
1-8 Heating Capacity .....................................................................................I - 71
1-9 Performance Charts.................................................................................I - 72
(1) Operating Current...............................................................................I - 72
(2) Operating Pressure ............................................................................I - 84
1-10 Noise Criterion Curves.............................................................................I - 90
1-11 Increasing the Fan Speed........................................................................I - 95
1-12 Air throw distance chart ...........................................................................I - 96
1-13 Installation Instructions ............................................................................I - 99
Tubing Length ..........................................................................................I - 99
SELECTING THE INSTALLATION SITE.................................................I -100
ELECTRICAL WIRING ............................................................................I -104
Electrical characteristics ..........................................................................I -108
1
SM830082
I - 1
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
XH2442
CH2442
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
24,000
8.6
23,400
8.4
25,000
16,400
24,300
15,800
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
710 / 530 / 450
10.0
230
10.2
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
11.2
11.6
11.7
12.3
Power input*
W
2,450
2,350
2,500
2,150
2,450
2,020
(17°F)**
Maximum overcurrent protection
FEATURES
A
25
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
— / Automatic
Horizontal / Vertical
Air filter
Washable, easy access, long life fiter (2,500 hr)
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
38 / 35 / 31
53
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
1 / 4 (6.35)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
12-1/8
Outdoor unit
28-15/16
Unit dimensions
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
(380)
(776)
(776)
(22)
(735)
(940)
(340)
(71)
30-9/16
30-9/16
49
37-1/32
13-3/8
157
Net weight
Indoor grille dimensions
PNR-XHS2432
Height
Width
Depth
3-1/16
33-27/32
33-27/32
11
(78)
—
—
—
—
(860)
(860)
(5)
Net weight
Indoor / Outdoor unit
Package dimensions
Height
Width
Depth
13-5/16
32-7/8
33-9/32
57
(338)
(835)
(845)
(26)
32-17/32
40
(826)
(1,016)
(416)
16-3/8
170
Shipping weight
Shipping volume
Indoor grille
(77)
8.4
(0.238)
(104)
(964)
(999)
(8)
12.3
(0.349)
Height
Width
Depth
4-3/32
37-15/16
39-11/32
18
—
—
—
—
—
Package dimensions
PNR-XHS2432
Shipping weight
Shipping volume
3.5
(0.100)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 2
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
XH3642
CH3642
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
34,500
10.5
33,500
10.6
37,500
25,000
36,500
23,500
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
1,050 / 840 / 720
10.7
230
11.0
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
15.4
15.8
18.2
19.3
Power input*
W
3,350
3,200
3,850
3,150
3,750
2,950
(17°F)**
Maximum overcurrent protection
FEATURES
A
40
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
— / Automatic
Horizontal / Vertical
Air filter
Washable, easy access, long life fiter (2,500 hr)
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
44 / 37 / 33
56
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
14-1/2
Outdoor unit
48-5/8
Unit dimensions
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
(368)
(1,066)
(776)
(27)
(1,235)
(940)
(340)
(92)
41-31/32
30-9/16
60
37-1/32
13-3/8
203
Net weight
Indoor grille dimensions
PNR-XHS2432
Height
Width
Depth
3-1/16
45-9/32
33-27/32
15
(78)
—
—
—
—
(1,150)
(860)
(7)
Net weight
Indoor / Outdoor unit
Package dimensions
Height
Width
Depth
14-1/2
44-9/32
33-9/32
71
(368)
(1,125)
(845)
(32)
52-7/32
40
(1,326)
(1,016)
(416)
16-3/8
227
Shipping weight
Shipping volume
Indoor grille
(103)
12.4
(0.35)
(104)
(1,257)
(999)
(10)
19.8
(0.56)
Height
Width
Depth
4-3/32
49-1/2
39-11/32
22
—
—
—
—
—
Package dimensions
PNR-XHS2432
Shipping weight
Shipping volume
4.6
(0.131)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 3
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
XH4242
CH4242
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
42,000
14.4
40,000
14.0
44,000
28,000
42,000
26,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
1,050 / 840 / 720
10.4
230
10.4
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
20.6
21.0
21.7
22.2
Power input*
W
4,200
4,100
4,450
3,700
4,350
3,550
(17°F)**
Maximum overcurrent protection
FEATURES
A
45
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
— / Automatic
Horizontal / Vertical
Air filter
Washable, easy access, long life fiter (2,500 hr)
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
45 / 38 / 34
56
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
14-1/2
Outdoor unit
48-5/8
Unit dimensions
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
(368)
(1,066)
(776)
(27)
(1,235)
(940)
(340)
(92)
41-31/32
30-9/16
60
37-1/32
13-3/8
203
Net weight
Indoor grille dimensions
PNR-XHS2432
Height
Width
Depth
3-1/16
45-9/32
33-27/32
15
(78)
—
—
—
—
(1,150)
(860)
(7)
Net weight
Indoor / Outdoor unit
Package dimensions
Height
Width
Depth
14-1/2
44-9/32
33-9/32
71
(368)
(1,125)
(845)
(32)
52-7/32
40
(1,326)
(1,016)
(416)
16-3/8
227
Shipping weight
Shipping volume
Indoor grille
(103)
12.4
(0.35)
(104)
(1,257)
(999)
(10)
19.8
(0.56)
Height
Width
Depth
4-3/32
19-1/2
39-11/32
22
—
—
—
—
—
Package dimensions
PNR-XHS2432
Shipping weight
Shipping volume
4.6
(0.131)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 4
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
TH2442
CH2442
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
22,400
8.0
21,600
7.9
25,400
15,700
25,000
15,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
550 / 490 / 460
10.0
230
10.0
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
10.7
11.3
11.7
12.9
Power input*
W
2,350
2,280
2,550
2,070
2,500
2,040
(17°F)**
Maximum overcurrent protection
FEATURES
A
25
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
Manual / Automatic
Horizontal / Vertical
Air filter
Washable, easy access
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
40 / 38 / 36
53
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
1 / 4 (6.35)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
7-15/32
Outdoor unit
28-15/16
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
lbs. (kg)
cu.ft. (m3)
(190)
(1,300)
(670)
(735)
(940)
(340)
(826)
(1,016)
(416)
(71)
51-3/16
26-3/8
9-7/16
54-19/32
29-31/32
60
37-1/32
13-3/8
32-17/32
40
Indoor grille dimensions
(240)
(1,387)
(761)
16-3/8
157
Net weight
(27)
Shipping weight
Shipping volume
77
(35)
170
(77)
8.9
(0.253)
12.3
(0.349)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 5
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
TH3642
CH3642
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
34,000
10.7
33,000
10.8
40,000
25,000
39,000
24,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
1,100 / 930 / 750
10.4
230
10.7
208
(7.3)
(7.3)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
15.1
15.7
18.2
19.6
Power input*
W
3,350
3,170
3,950
3,000
3,890
2,900
(17°F)**
Maximum overcurrent protection
FEATURES
A
40
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
Manual / Automatic
Horizontal / Vertical
Air filter
Washable, easy access
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
46 / 42 / 37
56
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
9-7/16
Outdoor unit
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
lbs. (kg)
cu.ft. (m3)
(240)
(1,575)
(670)
(317)
(1,678)
(789)
(41)
48-5/8
(1,235)
(940)
62-1/32
26-3/8
12-15/32
66-1/16
31-1/16
90
37-1/32
13-3/8
52-7/32
40
(340)
Indoor grille dimensions
(1,326)
(1,016)
(416)
16-3/8
203
Net weight
(92)
Shipping weight
Shipping volume
104
(47)
227
(103)
14.8
(0.42)
19.8
(0.56)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 6
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
TH4242
CH4242
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
42,000
14.8
40,000
14.3
44,000
28,000
42,000
26,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
1,100 / 930 / 750
10.0
230
10.4
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
20.6
21.3
21.7
22.5
Power input*
W
4,300
4,200
4,450
3,700
4,350
3,550
(17°F)**
Maximum overcurrent protection
FEATURES
A
45
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
Manual / Automatic
Horizontal / Vertical
Air filter
Washable, easy access
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
47 / 43 / 38
56
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
9-7/16
Outdoor unit
48-5/8
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
lbs. (kg)
cu.ft. (m3)
(240)
(1,575)
(670)
(317)
(1,678)
(789)
(41)
(1,235)
(940)
(340)
(1326)
(1,016)
(416)
(92)
62-1/32
26-3/8
12-15/32
66-1/16
31-1/16
90
37-1/32
13-3/8
52-7/32
40
Indoor grille dimensions
16-3/8
203
Net weight
Shipping weight
Shipping volume
104
(47)
227
(103)
(0.56)
14.8
(0.42)
19.8
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 7
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
UH2442
CH2442
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
24,000
8.4
23,400
7.7
27,000
16,200
26,500
15,500
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
External Static Pressure
S.E.E.R. (H.S.P.F.)
Pints / h
—
230 V
cu.ft. / min.
670 / 530 / 460
0.2 (49) : at shipment / 0.4 (100) : using jumper cable
in.Aq (Pa)
BTU / Wh
10.0
10.0
(7.0)
(7.0)
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
208
230
208
Available voltage range
Running amperes
187 - 253
11.5
12.1
12.0
12.5
Power input*
W
2,550
2,480
2,650
2,080
2,550
1,960
(17°F)**
Maximum overcurrent protection
FEATURES
A
25
Controls
Microprocessor
Built-in 0°F
3 and Automatic control / 3 (Auto)
RCS-SH80UG (72-hour ON / OFF)
RCS-BH80UA. WL (72-hour ON / OFF)
— / —
1
Low ambient control
Fan speeds Indoor / Outdoor
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
Horizontal / Vertical
Air filter
Optional
Operation sound
Indoor - Hi / Me / Lo
dB - A
dB - A
34 / 30 / 27 : at shipment / 38 / 34 / 30 : using jumper cable
53
Outdoor - Hi
Refrigerant control
Electronic Expansion Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
1 / 4 (6.35)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
12-7/32
Outdoor unit
28-15/16
Unit dimensions
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
ibs. (kg)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
cu.ft. (m3)
(310)
(1,000)
(630)
(735)
(940)
(340)
(826)
(1,016)
(416)
(71)
39-3/8
24-13/16
1-1/4
37-1/32
13-3/8
32-17/32
40
Net weight
(32)
Package dimensions
Height
Width
Depth
14-3/32
46-7/8
30-13/16
82
(358)
(1,191)
(1,191)
(37)
16-3/8
157
Shipping weight
Shipping volume
170
(77)
11.8
(0.334)
12.3
(0.349)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 8
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
UH3642
CH3642
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
34,500
10.0
33,000
9.9
37,500
25,000
36,500
24,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
External Static Pressure
S.E.E.R. (H.S.P.F.)
Pints / h
—
230 V
cu.ft. / min.
1,060 / 920 / 750
0.24 (59) : at shipment / 0.38 (94) : using jumper cable
in.Aq (Pa)
BTU / Wh
10.3
10.5
(7.0)
(7.0)
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
208
230
208
Available voltage range
Running amperes
187 - 253
15.1
15.7
18.2
19.6
Power input*
W
3,350
3,170
3,780
3,000
3,760
2,900
(17°F)**
Maximum overcurrent protection
FEATURES
A
40
Controls
Microprocessor
Built-in 0°F
Low ambient control
Fan speeds Indoor / Outdoor
1
3 and Automatic control / 3 (Auto)
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
RCS-SH80UG (72-hour ON / OFF)
RCS-SH80UA. WL / RCS-BH80UA. WL (72-hour ON / OFF)
Horizontal / Vertical
— / —
Air filter
Optional
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
38 / 33 / 31 : at shipment / 42 / 38 / 33 : using jumper cable
56
Refrigerant control
Electronic Expansion Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
12-7/32
Outdoor unit
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
ibs. (kg)
lbs. (kg)
cu.ft. (m3)
(310)
(1,480)
(630)
48-5/8
(1,235)
(940)
58-9/32
24-13/16
14-3/32
65-25/32
30-13/16
104
37-1/32
13-3/8
52-7/32
40
(340)
Package dimensions
(358)
(1,326)
(1,016)
(416)
(1,671)
(783)
16-3/8
203
Net weight
(47)
(92)
Shipping weight
Shipping volume
115
(52)
227
(103)
16.5
(0.468)
19.8
(0.56)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 9
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
KH2442
CH2442
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
22,000
7.1
21,000
6.8
25,000
16,000
24,300
15,300
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
540 / 460 / 380
10.0
230
10.0
208
(7.0)
(7.0)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
10.3
10.9
11.3
12.2
Power input*
W
2,300
2,220
2,500
2,100
2,430
2,070
(17°F)**
Maximum overcurrent protection
FEATURES
A
25
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
1
3 and Automatic control / 3 (Auto)
RCS-SH80UG (72-hour ON / OFF)
RCS-BH80UA. WL (72-hour ON / OFF)
Manual / Automatic
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
Horizontal / Vertical
Air filter
Washable, easy access
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
45 / 42 / 40
53
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
1 / 4 (6.35)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
14-9/16
Outdoor unit
28-15/16
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
lbs. (kg)
cu.ft. (m3)
(370)
(1,250)
(210)
(735)
(940)
(340)
(826)
(1,016)
(416)
(71)
49-7/32
8-9/32
18-3/16
52-23/32
10-11/32
40
37-1/32
13-3/8
32-17/32
40
Indoor grille dimensions
(462)
(1,339)
(263)
16-3/8
157
Net weight
(18)
Shipping weight
Shipping volume
51
(23)
170
(77)
5.8
(0.163)
12.3
(0.349)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 10
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1. Specifications
1-1 Unit Specifications
MODEL No.
Indoor Unit
KH3642
CH3642
Outdoor Unit
POWER SOURCE
PERFORMANCE
Capacity*
230 - 208 V / 1 Phase / 60 Hz
Cooling
Heating
BTU / h
33,000
10.6
32,000
10.6
40,000
25,000
39,000
24,000
(17°F)**
Moisture removal (High)
Air circulation (H / M / L)
S.E.E.R. (H.S.P.F.)
Pints / h
cu.ft. / min.
BTU / Wh
—
230 V
830 / 710 / 590
10.3
230
10.5
208
(7.6)
(7.6)
208
ELECTRICAL RATINGS
Voltage rating
VAC
VAC
A
230
Available voltage range
Running amperes
187 - 253
14.9
15.5
17.8
19.1
Power input*
W
3,290
3,120
3,860
3,000
3,810
2,900
(17°F)**
Maximum overcurrent protection
FEATURES
A
40
Controls
Microprocessor
Low ambient control
Fan speeds Indoor / Outdoor
Built-in 0°F
3 and Automatic control / 3 (Auto)
RCS-SH80UG (72-hour ON / OFF)
RCS-BH80UA. WL (72-hour ON / OFF)
Manual / Automatic
1
Optional Wired Remote Controller (Timer)
Optional Wireless Remote Controller (Timer)
Air deflection
Horizontal / Vertical
Air filter
Washable, easy access
Operation sound
Indoor - Hi / Me / Lo
Outdoor - Hi
dB - A
dB - A
48 / 44 / 40
56
Refrigerant control
Electronic Expansion Control Valve
REFRIGERANT PIPING
Limit of piping length
ft.
ft.
ft.
(m)
(m)
(m)
165 (50)
100 (30)
Limit of piping length at shipment
Limit of elevation difference
between the two units
Outdoor unit is higher than indoor unit: 165 (50)
Outdoor unit is lower than indoor unit: 100 (30)
Refrigerant piping
Flare type
Narrow pipe
Wide pipe
in. (mm)
in. (mm)
3 / 8 (9.52)
3 / 4 (19.05)
DIMENSIONS & WEIGHT
Indoor unit
14-9/16
Outdoor unit
Unit dimensions
Height
Width
Depth
Height
Width
Depth
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
in. (mm)
lbs. (kg)
lbs. (kg)
cu.ft. (m3)
(370)
(1,500)
(240)
48-5/8
(1,235)
(940)
59-1/16
9-7/16
18-3/16
62-9/16
11-5/8
73
37-1/32
13-3/8
52-7/32
40
(340)
Indoor grille dimensions
(462)
(1,326)
(1,016)
(416)
(1,589)
(295)
16-3/8
203
Net weight
(33)
(92)
Shipping weight
Shipping volume
90
(41)
227
(103)
7.7
(0.217)
19.8
(0.56)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
Cooling :
Rating conditions (*)
Heating :
Rating conditions (*)
: Room temperature 80 °F DB / 67 °F WB, Ambient temperature 95 °F DB / 75 °F WB
: Room temperature 70 °F DB / 60 °F WB, Ambient temperature 47 °F DB / 43 °F WB
Low temp conditions (**) : Room temperature 70 °F DB / 60 °F WB, Ambient temperature 17 °F DB / 15 °F WB
SM830082
I - 11
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
XH2442
Source
230 - 208 VAC / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 VAC, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Turbo (1…17-7/16 (443))
Model
SFG6X - 41D6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
6 … 464
40
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
170.3
18.1
43.2
,
,
,
ORG - YEL
WHT - PNK
YEL - BLK
:
:
:
43.2
83.5
60.2
(Ambient temperature 68 °F)
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
µF
266 ± 14.4
174.2 ± 27
440 V , 4.5 µF
Run capacitor
Electronic expansion valve
Coil
DKV - MOZS726E
Coil resistance (at 20°C)
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
Valve body
IKV - 24D18
Heat exchanger
Coil
Aluminum plate fin / Copper tube
2 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
3.69 (0.343)
Panel
Model No.
PNR - XH2442
MT8 - 3C
Auto louver motor
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16.430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 12
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
XH3642
Source
230 - 208 VAC / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 VAC, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Turbo (1…17-7/16 (443))
Model
SFG6X - 81A6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
6 … 467
60
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
75.1
6.7
,
,
,
ORG - YEL
VLT - PNK
YEL - BLK
:
:
:
27.4
42.7
58.0
(Ambient temperature 68 °F)
20.6
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
266 ± 14.4
174.2 ± 27
440 V , 5 µF
Run capacitor
Electronic expansion valve
Coil
µF
EKV - MOZS742E
Coil resistance (at 20°C)
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
Valve body
HKV - 30D27
Heat exchanger
Coil
Aluminum plate fin / Copper tube
2 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
8.20 (0.762)
Panel
Model No.
PNR - XH3642
MT8 - 3C
Auto louver motor
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16.430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 13
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
XH4242
Source
230 - 208 VAC / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 VAC, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Turbo (1…17-7/16 (443))
Model
SFG6X - 81A6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
6 … 506
60
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
75.1
6.7
,
,
,
ORG - YEL
VLT - PNK
YEL - BLK
:
:
:
27.4
42.7
58.0
(Ambient temperature 68 °F)
20.6
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
µF
266 ± 14.4
174.2 ± 27
440 V , 6 µF
Run capacitor
Electronic expansion valve
Coil
EKV - MOZS742E
Coil resistance (at 20°C)
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
Valve body
HKV - 30D27
Heat exchanger
Coil
Aluminum plate fin / Copper tube
2 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
8.20 (0.762)
Panel
Model No.
PNR - XH3642
MT8 - 3C
Auto louver motor
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16.430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 14
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
TH2442
Source
230 - 208 V / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 V, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Centrifugal (4 ... 5-1/8(130))
Model
SR4X - 51A6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
1,179
31
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
111.0
35.4
13.4
,
,
,
ORG - YEL
BLK - PNK
YEL - BLK
:
:
16.7
23.9
(Ambient temperature 68 °F)
: 136.6
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
266 ± 14.4
174.2 ± 27
440 V , 1.5 µF
Run capacitor
µF
Electronic refrigerant control valve
Solenoid control model
Coil resistance
DKV - MOZS582E0
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
(Ambient temperature 68 °F)
Solenoid control valve model
Heat exchanger
IKV - 24D18
Coil
Aluminum plate fin / Copper tube
3 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
1.81 (0.168)
Auto louver motor
Model No.
MT8 - 3C
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16,430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 15
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
TH3642
Source
230 - 208 V / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 V, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Centrifugal (4 ... 5-29/32(150))
Model
KFG4X - 101C6P
230 - 208 V / 1 phase / 60 Hz
4 ... 1,040
Source
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
100
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
61.05
,
ORG - YEL
:
:
:
13.23
19.25
10.81
(Ambient temperature 68 °F)
9.955 , YEL - BLK
9.576 , BLK - PNK
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
µF
266 ± 14.4
174.2 ± 27
440 V , 4 µF
Run capacitor
Electronic expansion valve
Coil
EKV - MOZS584E0
Coil resistance
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
(Ambient temperature 68 °F)
Valve body
HKV - 30D24
Heat exchanger
Coil
Aluminum plate fin / Copper tube
3 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
3.51 (0.326)
Auto louver motor
Model No.
MT8 - 3C
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16,430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 16
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
TH4242
Source
230 - 208 V / 1 phase / 60 Hz
RCS - SH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 V, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Centrifugal (4 ... 5-29/32(150))
Model
KFG4X - 101C6P
230 - 208 V / 1 phase / 60 Hz
4 ... 1,099
Source
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
100
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
61.05
,
ORG - YEL
:
:
:
13.23
19.25
10.81
(Ambient temperature 68 °F)
9.955 , YEL - BLK
9.576 , BLK - PNK
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
266 ± 14.4
174.2 ± 27
440 V , 5 µF
Run capacitor
Electronic expansion valve
Coil
µF
EKV - MOZS584E0
Coil resistance
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
(Ambient temperature 68 °F)
Valve body
HKV - 30D27
Heat exchanger
Coil
Aluminum plate fin / Copper tube
3 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
3.51 (0.326)
Auto louver motor
Model No.
MT8 - 3C
Auto louver motor … Rated
Coil resistance (Ambient temperature 77 °F)
V, W, rpm
240 VAC , 3 W , 3 rpm
16,430 Ω ± 8 %
Ω
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 17
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
UH2442
Source
230 - 208 V / 1 phase / 60 Hz
RCS - BH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 V, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Centrifugal (4 ... 5-29/32(150))
Model
KFG4X - 71B6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
4 ... 920
100
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
74.7
19.1
10.5
,
,
,
ORG - YEL
YEL - BLK
BLK - PNK
:
:
:
9.59
10.52
21.72
(Ambient temperature 68 °F)
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
µF
266 ± 14.4
174.2 ± 27
440 V , 5 µF
Run capacitor
Electronic expansion valve
Coil
DKV - MOZS697E0
Coil resistance
(Ambient temperature 68 °F)
Valve body
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
IKV - 24D12
Heat exchanger
Coil
Aluminum plate fin / Copper tube
3 … 14.9
Rows … Fins per inch
Face area
ft.2
(m2)
2.03 (0.189)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 18
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
UH3642
Source
230 - 208 V / 1 phase / 60 Hz
RCS - BH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
250 V, 3 A
Fan (Number … diameter)
Fan motor
in.
(mm)
Centrifugal (4 ... 5-29/32(150))
Model
KFG4X - 141A6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
4 ... 940
100
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
39.9
6.91
11.4
,
,
,
ORG - YEL
YEL - BLK
BLK - PNK
:
:
:
9.37
8.86
(Ambient temperature 68 °F)
14.3
Safety device
1
Operating temperature
Open
Close
VAC,
°F
°F
266 ± 14.4
174.2 ± 27
440 V , 5 µF
Run capacitor
Electronic expansion valve
Coil
µF
DKV - MOZS698E0
Coil resistance
(Ambient temperature 68 °F)
Valve body
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
HKV - 30D27
Heat exchanger
Coil
Aluminum plate fin / Copper tube
3 … 12.7
Rows … Fins per inch
Face area
ft.2
(m2)
3.32 (0.308)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 19
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
KH2442
Source
230 - 208 V / 1 phase / 60 Hz
RCS - BH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
Fan
250 V, 3 A
Cross-flow
Number ... Dia. and length
Fan motor
in.
(mm)
1 ... O.D. 4-1/3 (110), L39 (990)
Model
UF4Q - 31A6P
Source
230 - 208 V / 1 phase / 60 Hz
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
4 ... 1,276
30
Coil resistance
Ω
BRW - WHT
WHT - VLT
VLT - ORG
:
:
:
197.2
41.4
22.2
,
,
,
ORG - YEL
YEL - PNK
:
:
59.1
48.8
(Ambient temperature 68 °F)
1
Safety device
Operating temperature
Open
Close
VAC,
°F
°F
µF
248
±
9
171 ± 27
Run capacitor
Electronic refrigerant control valve
Solenoid control model
Coil resistance
440 V , 1.8 µF
DKV - MOZS582E0
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
(Ambient temperature 68 °F)
Solenoid control valve model
Heat exchanger
Coil
IKV - 24D11
Aluminum plate fin / Copper tube
3 … 12.7
Rows …
Face area
ft.2
(m2)
2.57 (0.24)
Louver Motor
Model
M2EA24ZA01
208 to 230 V, 60 Hz
8 … 3
Rating
No. of pole … rpm
Output
W
2.5
Coil resistance (Ambient temperature 68 °F)
kΩ
16.45 ± 8 %
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 20
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1. Specifications
1-2 Major Component Specifications
(A) Indoor Unit
MODEL No.
KH3642
Source
230 - 208 V / 1 phase / 60 Hz
RCS - BH80UA, WL
CR - TH2442
Remote controller (Option)
Controller P. C. B Ass'y
Control circuit fuse
Switch Ass'y
250 V, 3 A
SW - KHS2432
Fan
Cross-flow
Number ... Dia. and length
Fan motor
in.
(mm)
1 ... O.D. 4-13/18 (120), L46 (1,170)
Model
SFG4Q - 41B6P
230 - 208 V / 1 phase / 60 Hz
4 ... 1,273
Source
No. of pole … r.p.m. (230 V, High)
Nominal output
rpm
W
50
Coil resistance
Ω
GRY - WHT
WHT - VLT
VLT - ORG
:
:
:
122.3
15.98
11.93
,
,
,
ORG - YEL
YEL - PNK
:
:
23.03
9.272
(Ambient temperature 68 °F)
1
Safety device
Operating temperature
Open
Close
VAC,
°F
°F
266 ± 14.4
174.2 ± 26
440 V , 4 µF
Run capacitor
µF
Electronic expansion valve
Coil
EKV - MOZS557E0
Coil resistance
Ω
ORG - GRY
RED - GRY
:
:
46
46
,
,
YEL - GRY
BLK - GRY
:
:
46
46
(Ambient temperature 68 °F)
Valve body
HKV - 30D26
Heat exchanger
Coil
Aluminum plate fin / Copper tube
3 … 12.7
Rows … Fins per inch
Face area
ft.2
(m2)
3.23 (0.3)
Louver Motor
Model
M2EA24ZA01
208 to 230 V, 60 Hz
8 … 3
Rating
No. of pole … rpm
Output
W
2.5
Coil resistance (Ambient temperature 68 °F)
kΩ
16.45 ± 8 %
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 21
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1. Specifications
1-2 Major Component Specifications
(B) Outdoor Unit
MODEL No.
CH2442
Source
230 - 208 VAC / 1 phase / 60 Hz
CR - CH2442 (Microprocessor)
250 VAC, 3 A
Controller P.C.B. Ass'y
Control circuit fuse
Compressor
Rotary (Hermetic)
C - 2R160H6T
Model
Source
230 - 208 VAC / 1 phase / 60 Hz
1,700
Nominal output
W
cc
Ω
Compressor oil
800
Coil resistance (Ambient temperature 77 °F)
Safety device
C – R : 0.885 , C – S : 1.773
Internal type
Overload relay models
—
Operating temperature
Open
Close
°F
°F
297 ±
9
198 ± 20
—
Operating ampere (at 77 °F)
Run capacitor
A
1
VAC,
VAC,
lbs.
µF
W
400 VAC, 40 µF
230 VAC, 30 W
R22 : 6.17 (2.8)
Crank case heater
Refrigerant amount charged at shipment
High pressure switch
Set pressure
(kg)
-
ACB 1UB11
+
28.44
7.11
+ 2.0
+ 0.5
OFF lb/in2 (kg/cm2)
ON lb/in2 (kg/cm2)
426.6
(30
)
+
341.3 ± 28.44 (24 ± 2.0)
Propeller
Fan
Number...diameter
Fan speeds
Fan motor
in.
(mm)
1 ... 18 - 3/32 (460)
2 (AUTO)
Model
KFC6T - 91D6P
Source
230 - 208 VAC / 1 phase / 60 Hz
No. of pole ..... rpm (230 V, High)
Nominal output
6 ... 879
110
W
Coil resistance
(Ambient temperature 68 °F)
Ω
BRN – WHT
WHT – VLT
:
:
67.14 , VLT – YEL : 11.42
64.85 , YEL – PNK : 10.60
Safety device
Internal type
Operating temperature
Open
Close
VAC,
°F
°F
248 ±
9
171 ± 27
Run capacitor
Heat exchange
Coil
µF
440 VAC, 4 µF
Aluminum plate fin / Copper tube
Rows ..... Fins per inch
Face area
2 ... 14.1
ft.2
(m2)
6.78 (0.63)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 22
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1. Specifications
1-2 Major Component Specifications
(B) Outdoor Unit
MODEL No.
CH3642
Source
230 - 208 VAC / 1 phase / 60 Hz
CR - CH2442 (Microprocessor)
250 V, 3 A
Controller P.C.B. Ass'y
Control circuit fuse
Compressor
Rotary (Hermetic)
C - R221H6R
Model
Source
230 - 208 VAC / 1 phase / 60 Hz
2,200
Nominal output
W
cc
Ω
Compressor oil
1,500
Coil resistance (Ambient temperature 77 °F)
Safety device
C – R : 0.549 , C – S : 1.525
Internal type
Overload relay models
—
Operating temperature
Open
Close
°F
°F
320 ±
9
189 ± 20
—
Operating ampere (at 77 °F)
Run capacitor
A
1
VAC,
VAC,
lbs.
µF
W
400 VAC, 40 µF
230 VAC, 30 W
R22 : 8.82 (4.0)
Crank case heater
Refrigerant amount charged at shipment
High pressure switch
Set pressure
(kg)
-
ACB 1UB11
+
28.44
7.11
+ 2.0
+ 0.5
OFF lb/in2 (kg/cm2)
ON lb/in2 (kg/cm2)
426.6
(30
)
+
341.3 ± 28.44 (24 ± 2.0)
Propeller
Fan
Number...diameter
Fan speeds
Fan motor
in.
(mm)
2 ... 18 - 3/32 (460)
2 (AUTO)
Model
KFC6T - 91D6P × 2
230 - 208 V / 1 phase / 60 Hz
6 ... 879
Source
No. of pole ..... rpm (230 V, High)
Nominal output
W
110 × 2
Coil resistance
(Ambient temperature 68 °F)
Ω
BRN – WHT
WHT – VLT
:
:
67.14 , VLT – YEL : 11.42
64.85 , YEL – PNK : 10.60
Safety device
Internal type
Operating temperature
Open
Close
VAC,
°F
°F
248 ±
9
171 ± 27
Run capacitor
Heat exchange
Coil
µF
440 VAC, 4 µF × 2
Aluminum plate fin / Copper tube
Rows ..... Fins per inch
Face area
2 ... 14.1
ft.2
(m2)
11.63 (1.08)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 23
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1. Specifications
1-2 Major Component Specifications
(B) Outdoor Unit
MODEL No.
CH4242
Source
230 - 208 V / 1 phase / 60 Hz
Scroll (Hermetic)
ZR47KC - PFV
230 - 208 V / 1 phase / 60 Hz
4,270
Compressor
Model
Source
Nominal output
W
cc
Ω
Compressor oil
1,240
Coil resistance (Ambient temperature 77 °F)
Safety device
R - W : 0.475 , S - W : 1.850
Internal type
Overload relay models
—
Operating temperature
Open
Close
°F
°F
320 ±
9
189 ± 20
—
Operating ampere (at 77 °F)
Run capacitor
A
VAC,
lbs.
µF
(kg)
400 V, 50 µF
R22 : 9.7 (4.4)
Refrigerant amount charged at shipment
High pressure switch
1
ACB - 1UB11
+ 2.0
Set pressure
OFF kg/cm2
ON kg/cm2
30
+ 0.5
24 ± 2.0
Propeller
Fan
Number...diameter
Fan speeds
Fan motor
in.
(mm)
1 … 18-3/32 (460)
2 (AUTO)
Model
KFC6T - 91D6P × 2
230 - 208 V / 1 phase / 60 Hz
6 … 879
Source
No. of pole … rpm (230 V, High)
Nominal output
rpm
W
110 × 2
Coil resistance
Ω
BRW – WHT
WHT – VLT
:
:
67.14
64.85
,
,
VLT – YEL
YEL – PNK
:
:
11.42
10.60
(Ambient temperature 68 °F)
Safety device
Operating temperature
Open
Close
VAC,
°F
°F
248 ±
9
171 ± 27
Run capacitor
Heat exchanger
Coil
µF
440 V, 4 µF × 2
Aluminum plate fin / Copper tube
2 … 12.7
Rows … Fins per inch
Face area
ft.2
(m2)
11.63 (1.08)
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 24
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
XH2442
Power Transformer
ATR – II224A
220 VAC, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
61.0
0.97
,
,
RED - RED
ORG - ORG
:
:
1.37
3.16
Ω
Thermistor cut off temperature
Thermistor (Coil sensor) : TH2, 3
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
,
,
,
41 °F : 12.1
50 °F : 9.7
59 °F : 8.0
Thermistor (Room sensor) : TH1
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Drain pump
PJV - 1428AU
Rated
230 / 208 VAC, 12.5 W
FS - 0218 - 102
Float switch
MAX Rated (Contact rated)
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
50 W, DC 5V, 0.1 mA
IKV - 24D18
DKV - MOZS726E
MT8 - 3C
Synchronized Motor
SM830082
I - 25
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
XH3642
Power Transformer
ATR – IIK224A
220 VAC, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
61.0
0.97
,
,
RED - RED
ORG - ORG
:
:
1.37
3.16
Ω
Thermistor cut off temperature
Thermistor (Coil sensor) : TH2, 3
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
,
,
,
41 °F : 12.1
50 °F : 9.7
59 °F : 8.0
Thermistor (Room sensor) : TH1
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Drain pump
PJV - 1428AU
Rated
230 / 208 VAC, 12.5 W
FS - 0218 - 102
Float switch
MAX Rated (Contact rated)
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
50 W, DC 5V, 0.1 mA
HKV - 30D27
EKV - MOZS742E
MT8 - 3C
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 26
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
XH4242
Power Transformer
ATR – IIK224A
220 VAC, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V, 0.45 A, RED - RED : 14 V, 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
61.0
0.97
,
,
RED - RED
ORG - ORG
:
:
1.37
3.16
Ω
Thermistor cut off temperature
Thermistor (Coil sensor) : TH2, 3
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
,
,
,
41 °F : 12.1
50 °F : 9.7
59 °F : 8.0
Thermistor (Room sensor) : TH1
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Drain pump
PJV - 1428AU
Rated
230 / 208 VAC, 12.5 W
FS - 0218 - 102
Float switch
MAX Rated (Contact rated)
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
50 W, DC 5V, 0.1 mA
HKV - 30D27
EKV - MOZS742E
MT8 - 3C
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 27
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
TH2442
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
PBC - 41E - S14
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
IKV - 24D18
EKV - MOZS582E0
MT8 - 3C
Coil
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 28
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
TH3642
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.55 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
PBC - 41E - S42
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
HKV - 30D24
EKV - MOZS584E0
MT8 - 3C
Coil
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 29
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
TH4242
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S14
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
HKV - 30D27
EKV - MOZS584E0
MT8 - 3C
Coil
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 30
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
UH2442
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S36
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
KTEC - 35 - S42
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
Coil
HKV - 30D16
EKV - MOZS559E0
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 31
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
UH3642
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S36
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
KTEC - 35 - S85
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
Coil
HKV - 30D16
EKV - MOZS559E0
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 32
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
KH2442
Power Transformer
ATR – IIK244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S4
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
IKV - 24D11
DKV - MOZS582E0
M2EA24ZA01
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 33
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1. Specifications
1-3 Other Component Specifications
(A) Indoor Unit
MODEL No.
KH3642
Power Transformer
ATR – II244B
AC 220 V, 60 Hz
Rated
Primary
Secondary
Capacity
BRN - BRN : 14 V / 0.55 A, RED - RED : 14 V / 0.3 A
—
Coil resistance
(Ambient temprature 77 °F)
WHT - WHT
BRN - BRN
:
:
48.0
0.45
,
,
RED - RED
ORG - ORG
:
:
0.89
2.05
Ω
Thermistor cut off temperature
Thermistor (Coil sensor)
Coil resistance
°F
277
PBC - 41E - S4
kΩ
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
50 °F : 9.7
,
,
,
,
,
59 °F : 8.0
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Room or coil sensor)
KTEC - 35 - S6
Coil resistance
kΩ
32 °F : 16.5
41 °F : 12.8
50 °F : 10.0
68 °F : 6.3
86 °F : 4.0
,
,
,
,
,
104 °F : 2.7
113 °F : 2.2
122 °F : 1.8
131 °F : 1.5
1
Electronic expansion valve
Valve body
HKV - 30D24
EKV - MOZS557E0
SW - KHS2432
M2EA24ZA01
Coil
Switch Assy’s
Synchronized Motor
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 34
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1. Specifications
1-3 Other Component Specifications
(B) Outdoor Unit
MODEL No.
CH2442
FC - 1UL
Compressor Motor Magnetic Contactor
Coil rated
240 VAC, 60 Hz
580 ± 15 %
230 VAC, 20 A
230 VAC, 3 A
HH62S
Coil resistance (at 77 °F)
Contact rated (Main)
Ω
Contact rated (Auxiliary)
Power Relay
Coil rated
240 VAC, 60 Hz
17.2
Coil resistance (at 77 °F)
Contact rated
kΩ
220 VAC, 5 A
ATR - I65C
Power Transformer
Rated
Primary
220 VAC, 60 Hz
14 V, 0.4 A
5.6 VA
Secondary
Capacity
1
Coil resistance (at 73 °F )
Thermal cut off temperature
Thermistor (Coil sensor) : TH6, 7
Coil resistance
Ω
WHT – WHT : 395.5
,
266
,
BRN – BRN : 2.19
°F
PBC - 41E - S4
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
PBC - 41E - S26
kΩ
,
,
,
,
50 °F : 9.7
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Comp. discharge gas sensor) : TH8
PTC - 51H - S1
Coil resistance
kΩ
140 °F : 13.8
158 °F : 9.7
167 °F : 8.2
176 °F : 7.0
185 °F : 5.9
,
,
,
,
,
194 °F : 5.1
212 °F : 3.8
230 °F : 2.8
248 °F : 2.2
266 °F : 1.7
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
V 389100
LB 59005
Thermistor (PTC)
Rated
TDK – 101YV
Max. voltage
400 VAC
Max. ampere
11.5 A
+ 30
– 20
Resistance (at 77 °F)
Ω
100
%
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 35
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1. Specifications
1-3 Other Component Specifications
(B) Outdoor Unit
MODEL No.
CH3642
FC - 1SUL
Compressor Motor Magnetic Contactor
Coil rated
240 VAC, 60 Hz
588 ± 10 %
240 VAC, 26 A
240 VAC, 3 A
HH62S
Coil resistance (at 68 °F)
Contact rated (Main)
Ω
Contact rated (Auxiliary)
Power Relay
Coil rated
240 VAC, 60 Hz
17.2
Coil resistance (at 77 °F)
Contact rated
kΩ
220 VAC, 5 A
ATR - I65C
Power Transformer
Rated
Primary
220 VAC, 60 Hz
14 V, 0.4 A
5.6 VA
Secondary
Capacity
1
Coil resistance (at 73 °F )
Thermal cut off temperature
Thermistor (Coil sensor) : TH6, 7
Coil resistance
Ω
WHT – WHT : 395.5
,
266
,
BRN – BRN : 2.19
°F
PBC - 41E - S4
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
PBC - 41E - S36
kΩ
,
,
,
,
50 °F : 9.7
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Comp. discharge gas sensor) : TH8
PTC - 51H - S1
Coil resistance
kΩ
140 °F : 13.8
158 °F : 9.7
167 °F : 8.2
176 °F : 7.0
185 °F : 5.9
,
,
,
,
,
194 °F : 5.1
212 °F : 3.8
230 °F : 2.8
248 °F : 2.2
266 °F : 1.7
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
V 389100
LB 59005
Thermistor (PTC)
Rated
TDK – 101YV
Max. voltage
400 VAC
Max. ampere
11.5 A
+ 30
– 20
Resistance (at 77 °F)
Ω
100
%
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 36
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1. Specifications
1-3 Other Component Specifications
(B) Outdoor Unit
MODEL No.
CH4242
FC - 2SUL
Compressor Motor Magnetic Contactor
Coil rated
240 VAC, 60 Hz
350 ± 10 %
240 VAC, 35 A
240 VAC, 3 A
HH62S
Coil resistance (at 68 °F)
Contact rated (Main)
Ω
Contact rated (Auxiliary)
Power Relay
Coil rated
240 VAC, 60 Hz
17.2
Coil resistance (at 77 °F)
Contact rated
kΩ
220 VAC, 5 A
ATR - I65C
Power Transformer
Rated
Primary
220 VAC, 60 Hz
14 V, 0.4 A
5.6 VA
Secondary
Capacity
1
Coil resistance (at 73 °F )
Thermal cut off temperature
Thermistor (Coil sensor) : TH6, 7
Coil resistance
Ω
WHT – WHT : 395.5
,
266
,
BRN – BRN : 2.19
°F
PBC - 41E - S4
14 °F : 23.7
23 °F : 18.8
32 °F : 15.0
41 °F : 12.1
PBC - 41E - S36
kΩ
,
,
,
,
50 °F : 9.7
68 °F : 6.5
86 °F : 4.4
104 °F : 3.1
113 °F : 2.6
Thermistor (Comp. discharge gas sensor) : TH8
PTC - 51H - S1
Coil resistance
kΩ
140 °F : 13.8
158 °F : 9.7
167 °F : 8.2
176 °F : 7.0
185 °F : 5.9
,
,
,
,
,
194 °F : 5.1
212 °F : 3.8
230 °F : 2.8
248 °F : 2.2
266 °F : 1.7
Solenoid control valve or coil
Solenoid control valve
Solenoid coil
V 389100
LB 59005
Thermistor (PTC)
Rated
TDK – 101YV
Max. voltage
400 VAC
Max. ampere
11.5 A
+ 30
– 20
Resistance (at 77 °F)
Ω
100
%
DATA SUBJECT TO CHANGE WITHOUT NOTICE
SM830082
I - 37
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1. Specifications
1-4 Dimensional data
Indoor unit : 4-Way Air Discharge Semi-concealed Type
24 Type
10-9/32
8-11/16
4-7/8
Min. 2-15/32
Min. 19/32
3
4-7/8
2-5/16
6-3/16
7-5/32
1
12-1/8
4-7/8
1-3/16
32-9/32 (Ceiling opening)
33-27/32
19-11/16
29-13/16 (Suspention bolt pitch)
1-7/8
4-7/8
8-11/16
2-3/8
Dimension : inch
Air intake grille
Air outlet
Refrigerant liquid line
(3/8" : XH12, 18. 1/4" : XH24)
Refrigerant gas line
(1/2" : XH12. 5/8" : XH18. 3/4" : XH24)
Drain connection
Power supply entry (conduit size : 1/2")
For discharge duct
Suspention bolt mounting
For fresh air intake
8-27/32
1917_X_S
SM830082
I - 38
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1. Specifications
1-4 Dimensional data
Indoor unit : 4-Way Air Discharge Semi-concealed Type
36, 42 Type
11-15/32
9-19/32
4-7/8
Min. 2-15/32
Min. 19/32
3
2-5/16
6-3/16
7-5/32
4-7/8
32-9/32 (Ceiling opening)
33-27/32
19-11/16
13-5/16
4-7/8
1-7/8
1-3/16
1
29-13/16 (Suspention bolt pitch)
4-7/8
9-19/32
2-3/8
Dimension : inch
Air intake grille
Air outlet
Refrigerant liquid line (3/8")
Refrigerant gas line (3/4")
Drain connection
Power supply entry (conduit size : 1/2")
For discharge duct
Suspention bolt mounting
For fresh air intake
9-13/16
1918_X_S
SM830082
I - 39
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1. Specifications
1-4 Dimensional data
Indoor unit : Ceiling Mounted Type
24 Type
6-3/32
3-15/16
12-7/32
11-1/32
3-3/8
5-3/4
5-9/16
11-1/32
4-9/16
3-9/32
Holes in the rear side (View from front)
Hole for wall-through piping (View from front)
5-3/16
2-25/32
1
48-7/16 (Suspension bolt hole pitch)
1-3/8
50-13/32
26-3/8
10
or more
10
or more
Air outlet
51-3/16
Front
9-7/8
8-7/16
9-7/8
(Service space)
(Service space)
Air intake
3-1/2
4-1/16
5-25/32
7-7/32
Dimension : inch
Drain connection
Drain connection for left side
Refrigerant liquid line (1/4") Flare connection
Refrigerant gas line (3/4") Flare connection
Hole for rear side refrigerant tubing
Hole for through-the-wall refrigerant tubing (ø3-15/16" hole)
Hole for fresh air intake (Knockout hole)
Hole for right side refrigerant tubing (Knockout hole)
Hole for left side drain connection (Knockout hole)
Hole for power supply (Conduit size 1/2")
Infrared rays receiver for wireless remote controller
Cutting position for fresh air intake
1919_THS_I
SM830082
I - 40
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1. Specifications
1-4 Dimensional data
Indoor unit : Ceiling Mounted Type
36, 42 Type
6-3/32
7-31/32
12-7/32
11-1/32
3-3/8
5-3/4
5-9/16
11-1/32
4-3/4
3-5/32
Holes in the rear side (View from front)
Hole for wall-through piping (View from front)
5-3/16
2-25/32
1
59-1/4 (Suspension bolt hole pitch)
1-3/8
61-7/32
26-3/8
10
or more
10
or more
Air outlet
62
9-7/8
8-7/16
9-7/8
Front
(Service space)
(Service space)
Air intake
3-1/2
4-1/16
5-25/32
7-7/32
Dimension : inch
Drain connection
Drain connection for left side
Refrigerant liquid line (3/8") Flare connection
Refrigerant gas line (3/4") Flare connection
Hole for rear side refrigerant tubing
Hole for through-the-wall refrigerant tubing (ø3-15/16" hole)
Hole for fresh air intake (Knockout hole)
Hole for right side refrigerant tubing (Knockout hole)
Hole for left side drain connection (Knockout hole)
Hole for power supply (Conduit size 1/2")
Infrared rays receiver for wireless remote controller
Cutting position for fresh air intake
1920_TS_I
SM830082
I - 41
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1. Specifications
1-4 Dimensional data
Indoor unit : Concealed Duct Type
24 Type
10
7-15/32
31/32
6-5/16
1-3/16 2-3/4
13/32
31/32
24-13/16
3-11/32
1
4-17/32
10-1/4
15/16
11
(Air outlet
duct flange)
22-27/32
(Suspension bolt pitch)
31/32
Dimension : inch
Refrigerant liquid line ø3/8 (narrow tube)
(Use the tube connector)
Refrigerant gas line ø5/8 (wide tube)
Upper drain port (O.D. 1-1/4)
Bottom drain port (O.D. 1-1/32)
Suspension lug
Power supply inlet (conduit size 1/2")
Fresh air intake port (ø5-29/32)
Flange for the flexible air outlet duct (ø7-7/8)
Tube cover
7-9/32
9
10
11
Electrical component box
Flange for the air intake duct
(option or field supply)
1914_U_I
SM830082
I - 42
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1. Specifications
1-4 Dimensional data
Indoor unit : Concealed Duct Type
36 Type
10
7-15/32
31/32
6-5/16
1-3/16 2-3/4
24-13/16
13/32
31/32
3-11/32
1
4-17/32
10-1/4
15/16
11
(Air outlet
duct flange)
22-27/32
(Suspension bolt pitch)
31/32
Dimension : inch
Refrigerant liquid line ø3/8 (narrow tube)
Refrigerant gas line ø3/4 (wide tube)
Upper drain port (O.D. 1-1/4)
Bottom drain port (O.D. 1-1/32)
Suspension lug
Power supply inlet (conduit size 1/2")
Fresh air intake port (ø5-29/32)
Flange for the flexible air outlet duct (ø7-7/8)
Tube cover
7-9/32
9
10
11
Electrical component box
Flange for the air intake duct
(option or field supply)
1915_U_I
SM830082
I - 43
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1. Specifications
1-4 Dimensional data
Indoor unit : Concealed Duct Type
■ Flange for the air intake duct (Field supply)
: For Concealed Duct Type
Thickness more than T1/16 inch
8-9/32
31/32
12-1/32
31/32
13/32
10-1/4 (O.D.)
29/32
1
5/16
1-25/32
7-7/8
1-25/32
2118_U_I
(mm)
I
A
B
C
D
E
F
G
H
12, 18 type 27-15/32 26-1/16
5/32
1/4
7-7/8
3 × 7-7/8P = 23-5/8
6-11/16
–
13-3/4
15/32
24 type
36 type
39-9/32 37-7/8
58-3/16 56-25/32
7-3/32 5 × 7-3/32 = 35-7/16 4-23/32 9-21/32 (9-21/32 × 1) 9-27/32
5/8
9/32
9-1/16 6 × 9-1/16 = 54-11/32 4-23/32 19-9/32 (9-21/32 × 2) 9-7/16
25/32
SM830082
I - 44
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1. Specifications
1-4 Dimensional data
Indoor unit : Wall Mounted Type
24 Type
2-3/4
49-7/32
8-9/32
1
4-5/32
Refrigerant gas line (wide tubing: ø 3/4)
Refrigerant liquid line (narrow tubing: ø 1/4)
Drain hose OD 1-1/4
Dimension : inch
1911_X_S
SM830082
I - 45
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1. Specifications
1-4 Dimensional data
Indoor unit : Wall Mounted Type
36 Type
2-3/4
59-1/16
9-7/16
1
2-9/16
Refrigerant gas line (wide tubing 3/4")
Refrigerant liquid line (narrow tubing 3/8")
Drain hose OD 1-1/4
Dimension : inch
1912_X_S
SM830082
I - 46
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1. Specifications
1-4 Dimensional Data
(B) Outdoor Unit: CH2442
6-11/16
26
4-21/64
1-31/32
1-31/32
37
1
Dimension : inch
Hole for anchor bolt (4-ø1/2)
Refrigerant tube joint (narrow tube)
Flare connection 1/4 in (6.35 mm)
Refrigerant tube joint (wide tube)
Flare connection 3/4 in (19.05 mm)
Refrigerant tubing inlet
Power supply inlet
2179_THS_I
SM830082
I - 47
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1. Specifications
1-4 Dimensional Data
(B) Outdoor Unit: CH3642, CH4242
6-11/16
26
4-21/64
1-31/32
1-31/32
37
1
Dimension : inch
Hole for anchor bolt (4-ø13)
Refrigerant tube joint (narrow tube)
Flare connection 3/8 in (9.52 mm)
Refrigerant tube joint (wide tube)
Flare connection 3/4 in (19.05 mm)
Refrigerant tubing inlet
Power supply inlet
1581_C_S
SM830082
I - 48
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1. Specifications
1-5 Refrigerant Flow Diagram
Outdoor Unit: CH2442
Indoor Unit: 24 Type
Compressor
Accumulator
Accumulator
Gas line
service
valve
Gas line
nipple
O.D.
3/4"
(19.05mm)
HP
High
pressure
switch
4-way valve
EC
Heat exchanger
EC
P
Heat exchanger
Distributor
Strainer
P
Electronic
ref.control
valve
Distributor
Liquid line
service
valve
M
Liquid line
nipple
O.D.
1
1/4"
(6.35mm)
Strainer
Sub-heat exchanger
Cooling Cycle
Heating Cycle
2180_THS_I
Outdoor Unit: CH3642
Indoor Unit: 36 Type
Compressor
Accumulator
Accumulator
Gas line
service
valve
Gas line
nipple
O.D.
3/4"
(19.05mm)
HP
High
pressure
switch
Muffler
4-way valve
EC
P
Heat exchanger
EC
Heat exchanger
Distributor
Strainer
P
Electronic
ref.control
valve
Distributor
Liquid line
service
valve
M
Liquid line
nipple
O.D.
3/8"
(9.52mm)
Strainer
Sub-heat exchanger
Cooling Cycle
Heating Cycle
1398_THS_I
SM830082
I - 49
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1. Specifications
1-5 Refrigerant Flow Diagram
Outdoor Unit: CH4242
Indoor Unit: 42 Type
Compressor
Accumulator
Gas line
service
valve
Gas line
nipple
O.D.
3/4"
(19.05mm)
HP
High
pressure
switch
Muffler
4-way valve
EC
Heat exchanger
EC
P
Heat exchanger
Distributor
Distributor
Strainer
P
Electronic
ref.control
valve
Liquid line
service
valve
M
Liquid line
nipple
O.D.
1
3/8"
(9.52mm)
Strainer
Sub-heat exchanger
Cooling Cycle
Heating Cycle
2181_THS_I
1-6 Operating Range
Temperature
Indoor Air Intake
Outdoor Air Intake
Maximum
Minimum
Maximum
Minimum
95 °F DB, 71 °F WB 115 °F DB
67 °F DB, 57 °F WB 0 °F DB
Cooling
Heating
80 °F DB, 67 °F WB 75 °F DB, 65 °F WB
-DB / -WB
17 °F DB / 15 °F WB
SM830082
I - 50
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1. Specifications
1-7 Cooling Capacity
Indoor Unit: XH2442 Outdoor Unit: CH2442
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
24,000 BTU/h
AIR FLOW RATE:
CONDENSER
540 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
24,310
1.71
(29.4)
(35.0)
21,790
2.03
(40.6)
(46.1)
TC
CI
23,140
1.86
20,280
2.26
18,600
2.49
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,680
18,480
20,360
22,160
23,960
25,220
1.72
16,020
17,820
19,700
21,500
23,140
24,100
1.89
15,280
17,080
18,960
20,760
21,790
22,900
2.06
14,470
16,270
18,150
19,950
20,280
21,530
2.29
13,600
15,400
17,280
18,600
18,600
20,040
2.52
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
14,330
16,130
18,010
19,810
21,610
26,180
1.74
13,750
15,550
17,430
19,230
21,030
25,150
1.9
13,140
14,940
16,820
18,620
20,420
# 24,000
2.08
12,460
14,260
16,140
17,940
19,740
22,730
2.32
11,750
13,550
15,430
17,230
19,030
21,340
2.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,960
13,760
15,640
17,440
19,240
27,580
1.76
11,470
13,270
15,150
16,950
18,750
26,620
1.92
10,940
12,740
14,620
16,420
18,220
25,580
2.11
10,360
12,160
14,040
15,840
17,640
24,460
2.35
9,750
67
11,550
13,430
15,230
17,030
23,210
2.59
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,650
9,230
8,790
8,330
7,820
71
11,450
13,330
15,130
16,930
28,130
1.79
11,030
12,910
14,710
16,510
27,220
1.96
10,590
12,470
14,270
16,070
26,260
2.14
10,130
12,010
13,810
15,610
25,150
2.38
9,620
(21.7)
11,500
13,300
15,100
23,980
2.63
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,850
8,500
8,130
7,720
7,290
(23.9)
10,730
12,530
14,330
10,380
12,180
13,980
10,010
11,810
13,610
9,600
9,170
11,400
13,200
10,970
12,770
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 51
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1. Specifications
Indoor Unit: XH2442 Outdoor Unit: CH2442
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
23,400 BTU/h
AIR FLOW RATE:
CONDENSER
510 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
23,700
1.75
(29.4)
(35.0)
(40.6)
(46.1)
TC
CI
22,560
1.92
21,250
2.09
19,770
2.33
18,140
2.56
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
16,220
17,930
19,730
21,440
23,160
15,570
17,280
19,080
20,790
22,510
14,840
16,560
18,350
20,060
21,250
14,040
15,760
17,550
19,270
19,770
13,190
14,910
16,700
18,140
18,140
59
(15.0)
TC
CI
24,590
1.77
23,490
1.94
22,320
2.12
20,990
2.36
19,540
2.6
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,970
15,680
17,470
19,190
20,900
25,530
1.79
13,390
15,110
16,900
18,610
20,330
24,520
1.96
12,790
14,510
16,300
18,010
19,730
# 23,400
2.14
12,130
13,840
15,640
17,350
19,070
22,160
2.39
11,430
13,140
14,940
16,650
18,360
20,800
2.63
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,700
13,410
15,210
16,920
18,640
26,890
1.81
11,220
12,930
14,720
16,440
18,150
25,950
1.98
10,690
12,410
14,200
15,910
17,630
24,940
2.17
10,130
11,840
13,630
15,350
17,060
23,840
2.42
9,520
67
11,230
13,030
14,740
16,450
22,630
2.67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,480
9,070
8,640
8,180
7,680
71
11,200
12,990
14,700
16,420
27,420
1.84
10,790
12,580
14,300
16,010
26,540
2.01
10,360
12,150
13,860
15,580
25,600
2.2
9,890
9,400
(21.7)
11,690
13,400
15,120
24,520
2.46
11,190
12,900
14,620
23,380
2.71
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,700
8,360
8,000
7,590
7,170
(23.9)
10,490
12,210
13,920
10,150
11,870
13,580
9,790
9,380
8,960
11,500
13,220
11,100
12,810
10,670
12,390
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 52
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1. Specifications
Indoor Unit: XH3642 Outdoor Unit: CH3642
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
34,500 BTU/h
AIR FLOW RATE:
CONDENSER
980 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
34,950
2.32
(29.4)
(35.0)
31,330
2.76
(40.6)
(46.1)
TC
CI
33,260
2.53
29,150
3.06
26,740
3.36
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
25,700
29,070
32,590
34,950
34,950
36,260
2.34
24,850
28,220
31,740
33,260
33,260
34,640
2.57
23,890
27,260
30,790
31,330
31,330
32,910
2.8
22,840
26,210
29,150
29,150
29,150
30,950
3.11
21,700
25,070
26,740
26,740
26,740
28,810
3.42
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,580
24,950
28,480
31,850
35,220
37,640
2.36
20,830
24,200
27,730
31,100
34,470
36,160
2.59
20,050
23,420
26,940
30,310
32,910
# 34,500
2.83
19,170
22,540
26,060
29,430
30,950
32,670
3.14
18,230
21,600
25,130
28,500
28,810
30,670
3.45
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
17,450
20,820
24,340
27,710
31,080
39,640
2.39
16,820
20,190
23,710
27,080
30,450
38,260
2.62
16,130
19,500
23,020
26,390
29,760
36,780
2.87
15,380
18,750
22,270
25,640
29,010
35,160
3.19
14,570
17,940
21,470
24,840
28,210
33,360
3.5
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,330
16,700
20,220
23,590
26,960
40,430
2.43
12,800
16,170
19,690
23,060
26,430
39,120
2.66
12,240
15,610
19,130
22,500
25,870
37,740
2.91
11,630
15,000
18,520
21,890
25,260
36,160
3.23
10,960
14,330
17,860
21,230
24,600
34,470
3.55
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
12,270
15,800
19,170
22,540
11,820
15,340
18,710
22,080
11,350
14,870
18,240
21,610
10,810
14,330
17,700
21,070
10,250
13,770
17,140
20,510
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 53
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1. Specifications
Indoor Unit: XH3642 Outdoor Unit: CH3642
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
33,500 BTU/h
AIR FLOW RATE:
CONDENSER
880 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
33,940
2.21
(29.4)
(35.0)
30,420
2.62
(40.6)
(46.1)
TC
CI
32,290
2.41
28,310
2.96
25,960
3.3
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
24,520
27,600
30,810
33,890
33,940
35,210
2.23
23,670
26,750
29,960
32,290
32,290
33,630
2.44
22,730
25,810
29,020
30,420
30,420
31,960
2.66
21,690
24,760
27,980
28,310
28,310
30,050
3
20,560
23,630
25,960
25,960
25,960
27,970
3.35
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,720
23,790
27,010
30,080
33,160
36,550
2.25
19,970
23,050
26,260
29,340
32,410
35,110
2.46
19,200
22,270
25,490
28,560
31,640
# 33,500
2.69
18,330
21,400
24,620
27,690
30,050
31,720
3.04
17,400
20,470
23,690
26,760
27,970
29,780
3.38
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,900
19,970
23,190
26,260
29,340
38,490
2.27
16,270
19,350
22,560
25,640
28,710
37,150
2.49
15,590
18,660
21,880
24,950
28,030
35,710
2.73
14,840
17,920
21,130
24,210
27,280
34,140
3.08
14,050
17,120
20,340
23,410
26,490
32,390
3.43
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,100
16,180
19,390
22,470
25,540
39,260
2.31
12,570
15,650
18,860
21,940
25,010
37,990
2.53
12,010
15,090
18,300
21,380
24,450
36,650
2.77
11,410
14,490
17,700
20,780
23,850
35,110
3.13
10,750
13,830
17,040
20,120
23,190
33,470
3.48
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
12,060
15,280
18,350
21,430
11,610
14,830
17,900
20,980
11,150
14,360
17,440
20,510
10,610
13,830
16,900
19,980
10,060
13,270
16,350
19,420
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 54
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1. Specifications
Indoor Unit: XH4242 Outdoor Unit: CH4242
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
42,000 BTU/h
AIR FLOW RATE:
CONDENSER
980 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
42,550
3.03
(29.4)
(35.0)
38,140
3.6
(40.6)
(46.1)
TC
CI
40,490
3.3
35,490
4.02
32,550
4.44
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
29,690
33,060
36,580
39,950
42,550
44,140
3.06
28,560
31,930
35,460
38,830
40,490
42,170
3.35
27,310
30,680
34,210
37,580
38,140
40,070
3.65
25,940
29,310
32,830
35,490
35,490
37,670
4.08
24,460
27,830
31,350
32,550
32,550
35,070
4.5
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
25,370
28,740
32,270
35,640
39,010
45,820
3.08
24,390
27,760
31,280
34,650
38,020
44,020
3.38
23,360
26,730
30,250
33,620
36,990
# 42,000
3.69
22,210
25,580
29,100
32,470
35,840
39,770
4.12
20,990
24,360
27,890
31,260
34,630
37,340
4.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,040
24,410
27,930
31,300
34,670
48,260
3.11
20,210
23,580
27,110
30,480
33,850
46,580
3.41
19,310
22,680
26,200
29,570
32,940
44,770
3.75
18,330
21,700
25,220
28,590
31,960
42,800
4.18
17,280
20,650
24,170
27,540
30,910
40,610
4.62
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,770
20,140
23,660
27,030
30,400
49,220
3.17
16,070
19,440
22,960
26,330
29,700
47,630
3.47
15,330
18,700
22,220
25,590
28,960
45,950
3.8
14,530
17,900
21,430
24,800
28,170
44,020
4.24
13,670
17,040
20,560
23,930
27,300
41,960
4.69
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
15,420
18,940
22,310
25,680
14,820
18,350
21,720
25,090
14,200
17,730
21,100
24,470
13,500
17,020
20,400
23,770
12,770
16,290
19,660
23,030
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 55
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1. Specifications
Indoor Unit: XH4242 Outdoor Unit: CH4242
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
40,000 BTU/h
AIR FLOW RATE:
CONDENSER
880 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
40,520
2.91
(29.4)
(35.0)
36,320
3.46
(40.6)
(46.1)
TC
CI
38,560
3.18
33,800
3.92
31,000
4.38
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
28,050
31,120
34,340
37,410
40,490
42,040
2.94
26,960
30,040
33,250
36,330
38,560
40,160
3.22
25,750
28,820
32,040
35,110
36,320
38,160
3.51
24,420
27,490
30,710
33,780
33,800
35,880
3.98
22,990
26,060
29,280
31,000
31,000
33,400
4.45
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
24,070
27,150
30,360
33,440
36,510
43,640
2.96
23,110
26,190
29,400
32,480
35,550
41,920
3.25
22,120
25,190
28,410
31,480
34,560
# 40,000
3.55
21,010
24,080
27,300
30,370
33,450
37,880
4.02
19,830
22,900
26,120
29,190
32,270
35,560
4.49
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,070
23,150
26,360
29,440
32,510
45,960
3
19,270
22,340
25,560
28,630
31,710
44,360
3.28
18,390
21,470
24,680
27,760
30,830
42,640
3.6
17,440
20,520
23,730
26,810
29,880
40,760
4.08
16,430
19,500
22,720
25,790
28,870
38,680
4.56
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,140
19,220
22,430
25,510
28,580
46,880
3.05
15,460
18,540
21,750
24,830
27,900
45,360
3.34
14,740
17,820
21,030
24,110
27,180
43,760
3.66
13,970
17,050
20,260
23,340
26,410
41,920
4.14
13,140
16,210
19,430
22,500
25,580
39,960
4.62
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
14,840
18,060
21,130
24,210
14,260
17,480
20,550
23,630
13,660
16,880
19,950
23,030
12,980
16,200
19,270
22,350
12,270
15,490
18,560
21,640
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 56
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1. Specifications
Indoor Unit: TH2442 Outdoor Unit: CH2442
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
22,400 BTU/h
AIR FLOW RATE:
CONDENSER
460 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
22,690
1.71
(29.4)
(35.0)
20,340
2.03
(40.6)
(46.1)
TC
CI
21,590
1.86
18,930
2.26
17,360
2.49
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
15,520
17,140
18,840
20,460
22,090
23,540
1.72
14,890
16,510
18,210
19,830
21,460
22,490
1.89
14,190
15,820
17,510
19,140
20,340
21,370
2.06
13,430
15,050
16,750
18,370
18,930
20,090
2.29
12,610
14,230
15,930
17,360
17,360
18,700
2.52
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,380
15,000
16,700
18,320
19,950
24,440
1.74
12,830
14,450
16,150
17,770
19,400
23,480
1.9
12,250
13,880
15,570
17,200
18,820
# 22,400
2.08
11,610
13,240
14,930
16,560
18,180
21,210
2.32
10,940
12,560
14,260
15,880
17,500
19,910
2.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,230
12,850
14,550
16,170
17,800
25,740
1.76
10,770
12,390
14,090
15,710
17,340
24,840
1.92
10,260
11,880
13,580
15,200
16,830
23,880
2.11
9,710
9,130
67
11,340
13,030
14,660
16,280
22,830
2.35
10,750
12,450
14,080
15,700
21,660
2.59
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,130
8,730
8,320
7,880
7,390
71
10,750
12,450
14,070
15,690
26,250
1.79
10,360
12,050
13,680
15,300
25,400
1.96
9,940
9,500
9,020
(21.7)
11,640
13,260
14,890
24,510
2.14
11,200
12,820
14,440
23,480
2.38
10,710
12,340
13,960
22,380
2.63
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,380
8,050
7,700
7,310
6,900
(23.9)
10,080
11,700
13,320
9,740
9,400
9,010
8,600
11,370
12,990
11,020
12,650
10,630
12,250
10,220
11,850
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 57
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1. Specifications
Indoor Unit: TH2442 Outdoor Unit: CH2442
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
21,600 BTU/h
AIR FLOW RATE:
CONDENSER
410 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
21,880
1.75
(29.4)
(35.0)
19,610
2.09
(40.6)
(46.1)
TC
CI
20,820
1.92
18,250
2.33
16,740
2.56
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
14,850
16,320
17,860
19,330
20,800
22,700
1.77
14,220
15,690
17,230
18,700
20,170
21,690
1.94
13,530
15,000
16,540
18,010
19,480
20,610
2.12
12,770
14,240
15,780
17,250
18,250
19,380
2.36
11,960
13,430
14,970
16,440
16,740
18,040
2.6
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
12,870
14,340
15,880
17,350
18,820
23,570
1.79
12,320
13,800
15,330
16,800
18,280
22,640
1.96
11,750
13,220
14,760
16,230
17,700
# 21,600
2.14
11,120
12,590
14,130
15,600
17,070
20,460
2.39
10,450
11,920
13,460
14,930
16,400
19,200
2.63
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
10,890
12,360
13,900
15,370
16,840
24,820
1.81
10,420
11,900
13,430
14,910
16,380
23,950
1.98
9,920
9,380
8,800
67
11,390
12,930
14,400
15,870
23,030
2.17
10,850
12,390
13,860
15,330
22,010
2.42
10,270
11,810
13,280
14,750
20,890
2.67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
8,950
8,560
8,150
7,710
7,230
71
10,420
11,960
13,430
14,900
25,320
1.84
10,030
11,570
13,040
14,510
24,490
2.01
9,620
9,180
8,700
(21.7)
11,160
12,630
14,100
23,630
2.2
10,720
12,190
13,660
22,640
2.46
10,240
11,710
13,180
21,580
2.71
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,220
7,880
7,540
7,150
6,750
(23.9)
9,760
9,420
9,080
8,690
8,290
11,230
12,700
10,890
12,360
10,550
12,020
10,160
11,630
9,760
11,230
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 58
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1. Specifications
Indoor Unit: TH3642 Outdoor Unit: CH3642
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
34,000 BTU/h
AIR FLOW RATE:
CONDENSER
900 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
34,440
2.32
(29.4)
(35.0)
30,870
2.76
(40.6)
(46.1)
TC
CI
32,780
2.53
28,730
3.06
26,350
3.36
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
24,970
28,140
31,460
34,440
34,440
35,730
2.34
24,120
27,290
30,610
32,780
32,780
34,140
2.57
23,160
26,330
29,650
30,870
30,870
32,440
2.8
22,110
25,280
28,600
28,730
28,730
30,500
3.11
20,970
24,140
26,350
26,350
26,350
28,390
3.42
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,060
24,230
27,540
30,720
33,890
37,090
2.36
20,310
23,480
26,800
29,970
33,140
35,630
2.59
19,520
22,690
26,010
29,180
32,350
# 34,000
2.83
18,640
21,810
25,130
28,300
30,500
32,200
3.14
17,710
20,880
24,190
27,370
28,390
30,230
3.45
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
17,120
20,300
23,610
26,780
29,960
39,070
2.39
16,500
19,670
22,980
26,160
29,330
37,710
2.62
15,810
18,980
22,290
25,470
28,640
36,240
2.87
15,060
18,230
21,550
24,720
27,890
34,650
3.19
14,250
17,420
20,740
23,910
27,080
32,880
3.5
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,220
16,400
19,710
22,880
26,060
39,850
2.43
12,690
15,860
19,180
22,350
25,520
38,560
2.66
12,120
15,290
18,610
21,780
24,950
37,200
2.91
11,520
14,690
18,000
21,180
24,350
35,630
3.23
10,850
14,020
17,340
20,510
23,680
33,970
3.55
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
12,170
15,490
18,660
21,830
11,720
15,030
18,200
21,380
11,240
14,560
17,730
20,900
10,700
14,020
17,190
20,360
10,140
13,460
16,630
19,800
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 59
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1. Specifications
Indoor Unit: TH3642 Outdoor Unit: CH3642
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
33,000 BTU/h
AIR FLOW RATE:
CONDENSER
800 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
33,430
2.21
(29.4)
(35.0)
29,960
2.62
(40.6)
(46.1)
TC
CI
31,810
2.41
27,890
2.96
25,580
3.3
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
23,800
26,660
29,660
32,530
33,430
34,680
2.23
22,940
25,810
28,810
31,680
31,810
33,130
2.44
21,990
24,860
27,860
29,960
29,960
31,480
2.66
20,950
23,820
26,810
27,890
27,890
29,600
3
19,820
22,690
25,580
25,580
25,580
27,560
3.35
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,200
23,070
26,070
28,930
31,800
36,000
2.25
19,450
22,320
25,320
28,190
31,050
34,580
2.46
18,670
21,540
24,540
27,400
30,270
# 33,000
2.69
17,800
20,670
23,660
26,530
29,400
31,250
3.04
16,870
19,740
22,740
25,600
27,560
29,340
3.38
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,590
19,460
22,460
25,320
28,190
37,920
2.27
15,960
18,830
21,830
24,700
27,560
36,600
2.49
15,280
18,140
21,140
24,010
26,880
35,180
2.73
14,530
17,400
20,400
23,260
26,130
33,630
3.08
13,730
16,600
19,600
22,470
25,330
31,910
3.43
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,020
15,890
18,890
21,750
24,620
38,680
2.31
12,490
15,360
18,350
21,220
24,090
37,420
2.53
11,930
14,790
17,790
20,660
23,530
36,100
2.77
11,320
14,190
17,190
20,050
22,920
34,580
3.13
10,660
13,530
16,530
19,390
22,260
32,970
3.48
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
11,990
14,980
17,850
20,720
11,530
14,530
17,390
20,260
11,060
14,060
16,920
19,790
10,520
13,520
16,390
19,260
9,970
(23.9)
12,960
15,830
18,700
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 60
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1. Specifications
Indoor Unit: TH4242 Outdoor Unit: CH4242
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
42,000 BTU/h
AIR FLOW RATE:
CONDENSER
900 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
42,550
3.03
(29.4)
(35.0)
38,140
3.6
(40.6)
(46.1)
TC
CI
40,490
3.3
35,490
4.02
32,550
4.44
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
29,360
32,530
35,850
39,020
42,190
44,140
3.06
28,200
31,380
34,690
37,860
40,490
42,170
3.35
26,920
30,090
33,410
36,580
38,140
40,070
3.65
25,510
28,690
32,000
35,170
35,490
37,670
4.08
24,000
27,170
30,490
32,550
32,550
35,070
4.5
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
25,230
28,400
31,720
34,890
38,060
45,820
3.08
24,220
27,390
30,710
33,880
37,050
44,020
3.38
23,160
26,340
29,650
32,820
36,000
# 42,000
3.69
21,990
25,160
28,470
31,650
34,820
39,770
4.12
20,740
23,920
27,230
30,400
33,580
37,340
4.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,080
24,260
27,570
30,740
33,920
48,260
3.11
20,240
23,410
26,730
29,900
33,070
46,580
3.41
19,310
22,480
25,790
28,970
32,140
44,770
3.75
18,300
21,470
24,790
27,960
31,130
42,800
4.18
17,230
20,410
23,720
26,890
30,070
40,610
4.62
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
17,020
20,190
23,510
26,680
29,850
49,220
3.17
16,300
19,470
22,790
25,960
29,130
47,630
3.47
15,540
18,710
22,020
25,200
28,370
45,950
3.8
14,720
17,890
21,210
24,380
27,550
44,020
4.24
13,840
17,010
20,320
23,500
26,670
41,960
4.69
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
15,640
18,960
22,130
25,300
15,030
18,350
21,520
24,690
14,400
17,710
20,880
24,060
13,680
16,990
20,170
23,340
12,930
16,240
19,410
22,590
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 61
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1. Specifications
Indoor Unit: TH4242 Outdoor Unit: CH4242
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
40,000 BTU/h
AIR FLOW RATE:
CONDENSER
800 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
40,520
2.91
(29.4)
(35.0)
36,320
3.46
(40.6)
(46.1)
TC
CI
38,560
3.18
33,800
4.16
31,000
4.86
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
27,740
30,610
33,600
36,470
39,340
42,040
2.94
26,610
29,480
32,480
35,350
38,210
40,160
3.22
25,360
28,230
31,230
34,090
36,320
38,160
3.51
23,990
26,860
29,860
32,730
33,800
35,880
4.22
22,520
25,390
28,390
31,000
31,000
33,400
4.93
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
23,960
26,820
29,820
32,690
35,560
43,640
2.96
22,960
25,830
28,830
31,700
34,560
41,920
3.25
21,940
24,800
27,800
30,670
33,540
# 40,000
3.55
20,790
23,660
26,660
29,520
32,390
37,880
4.27
19,580
22,450
25,450
28,320
31,180
35,560
4.98
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,150
23,020
26,010
28,880
31,750
45,960
3
19,320
22,190
25,190
28,050
30,920
44,360
3.28
18,410
21,280
24,280
27,150
30,010
42,640
3.6
17,440
20,300
23,300
26,170
29,040
40,760
4.33
16,400
19,260
22,260
25,130
28,000
38,680
5.05
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,430
19,300
22,300
25,160
28,030
46,880
3.05
15,730
18,600
21,590
24,460
27,330
45,360
3.34
14,990
17,850
20,850
23,720
26,590
43,760
3.66
14,190
17,060
20,060
22,920
25,790
41,920
4.39
13,330
16,200
19,200
22,060
24,930
39,960
5.13
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
15,100
18,100
20,970
23,840
14,510
17,500
20,370
23,240
13,890
16,880
19,750
22,620
13,190
16,180
19,050
21,920
12,450
15,450
18,320
21,190
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 62
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1. Specifications
Indoor Unit: UH2442 Outdoor Unit: CH2442
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
24,000 BTU/h
AIR FLOW RATE:
CONDENSER
670 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
24,310
1.71
(29.4)
(35.0)
21,790
2.03
(40.6)
(46.1)
TC
CI
23,140
1.86
20,280
2.26
18,600
2.49
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,820
18,720
20,710
22,610
24,310
25,220
1.72
16,180
18,080
20,070
21,970
23,140
24,100
1.89
15,450
17,350
19,340
21,240
21,790
22,900
2.06
14,660
16,560
18,550
20,280
20,280
21,530
2.29
13,810
15,710
17,700
18,600
18,600
20,040
2.52
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
14,370
16,270
18,260
20,160
22,060
26,180
1.74
13,810
15,710
17,690
19,600
21,500
25,150
1.9
13,210
15,110
17,100
19,000
20,900
# 24,000
2.08
12,550
14,450
16,440
18,340
20,240
22,730
2.32
11,850
13,750
15,740
17,640
19,540
21,340
2.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,910
13,810
15,800
17,700
19,600
27,580
1.76
11,430
13,330
15,320
17,220
19,120
26,620
1.92
10,910
12,810
14,800
16,700
18,600
25,580
2.11
10,350
12,250
14,240
16,140
18,040
24,460
2.35
9,750
67
11,650
13,630
15,530
17,430
23,210
2.59
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,490
9,090
8,660
8,200
7,700
71
11,390
13,380
15,280
17,180
28,130
1.79
10,990
12,970
14,870
16,780
27,220
1.96
10,560
12,540
14,440
16,340
26,260
2.14
10,100
12,090
13,990
15,890
25,150
2.38
9,600
(21.7)
11,590
13,490
15,390
23,980
2.63
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,710
8,360
8,000
7,600
7,180
(23.9)
10,690
12,590
14,490
10,350
12,250
14,150
9,990
9,590
9,160
11,890
13,790
11,490
13,390
11,070
12,970
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 63
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1. Specifications
Indoor Unit: UH2442 Outdoor Unit: CH2442
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
23,400 BTU/h
AIR FLOW RATE:
CONDENSER
600 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
23,700
1.75
(29.4)
(35.0)
21,250
2.09
(40.6)
(46.1)
TC
CI
22,560
1.92
19,770
2.33
18,140
2.56
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,860
18,930
21,090
23,150
23,700
24,590
1.77
16,260
18,330
20,490
22,560
22,560
23,490
1.94
15,590
17,660
19,820
21,250
21,250
22,320
2.12
14,850
16,910
19,070
19,770
19,770
20,990
2.36
14,050
16,120
18,140
18,140
18,140
19,540
2.6
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
14,280
16,340
18,500
20,570
22,630
25,530
1.79
13,750
15,810
17,970
20,040
22,100
24,520
1.96
13,190
15,260
17,420
19,490
21,550
# 23,400
2.14
12,580
14,640
16,800
18,870
20,940
22,160
2.39
11,920
13,990
16,150
18,210
19,540
20,800
2.63
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,680
13,740
15,900
17,970
20,040
26,890
1.81
11,230
13,300
15,460
17,530
19,590
25,950
1.98
10,750
12,810
14,970
17,040
19,110
24,940
2.17
10,220
12,290
14,450
16,510
18,580
23,840
2.42
9,660
67
11,720
13,880
15,950
18,010
22,630
2.67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,110
8,730
8,330
7,900
7,440
71
11,170
13,330
15,400
17,460
27,420
1.84
10,800
12,960
15,020
17,090
26,540
2.01
10,400
12,560
14,620
16,690
25,600
2.2
9,970
9,500
(21.7)
12,130
14,190
16,260
24,520
2.46
11,660
13,730
15,800
23,380
2.71
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
8,360
8,050
7,710
7,330
6,940
(23.9)
10,520
12,590
14,660
10,210
12,270
14,340
9,870
9,490
9,100
11,940
14,000
11,560
13,630
11,170
13,230
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 64
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1. Specifications
Indoor Unit: UH3642 Outdoor Unit: CH3642
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
34,500 BTU/h
AIR FLOW RATE:
CONDENSER
1,060 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
34,950
2.32
(29.4)
(35.0)
31,330
2.76
(40.6)
(46.1)
TC
CI
33,260
2.53
29,150
3.06
26,740
3.36
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
26,210
29,810
33,570
34,950
34,950
36,260
2.34
25,370
28,970
32,740
33,260
33,260
34,640
2.57
24,440
28,040
31,330
31,330
31,330
32,910
2.8
23,400
27,000
29,150
29,150
29,150
30,950
3.11
22,280
25,880
26,740
26,740
26,740
28,810
3.42
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,860
25,460
29,230
32,830
36,260
37,640
2.36
21,130
24,730
28,490
32,090
34,640
36,160
2.59
20,360
23,960
27,720
31,320
32,910
# 34,500
2.83
19,500
23,100
26,860
30,460
30,950
32,670
3.14
18,580
22,180
25,940
28,810
28,810
30,670
3.45
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
17,500
21,100
24,860
28,460
32,060
39,640
2.39
16,890
20,490
24,250
27,850
31,450
38,260
2.62
16,210
19,810
23,570
27,170
30,770
36,780
2.87
15,470
19,070
22,840
26,440
30,040
35,160
3.19
14,680
18,280
22,050
25,650
29,250
33,360
3.5
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,150
16,750
20,510
24,110
27,710
40,430
2.43
12,620
16,220
19,990
23,590
27,190
39,120
2.66
12,070
15,670
19,440
23,040
26,640
37,740
2.91
11,480
15,080
18,840
22,440
26,040
36,160
3.23
10,820
14,420
18,190
21,790
25,390
34,470
3.55
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
12,100
15,860
19,460
23,060
11,650
15,420
19,020
22,620
11,190
14,950
18,550
22,150
10,660
14,430
18,030
21,630
10,110
13,870
17,470
21,070
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 65
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1. Specifications
Indoor Unit: UH3642 Outdoor Unit: CH3642
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
33,000 BTU/h
AIR FLOW RATE:
CONDENSER
950 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
33,430
2.21
(29.4)
(35.0)
29,960
2.62
(40.6)
(46.1)
TC
CI
31,810
2.41
27,890
2.96
25,580
3.3
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
24,700
27,990
31,420
33,430
33,430
34,680
2.23
23,890
27,180
30,610
31,810
31,810
33,130
2.44
22,980
26,270
29,700
29,960
29,960
31,480
2.66
21,980
25,270
27,890
27,890
27,890
29,600
3
20,890
24,180
25,580
25,580
25,580
27,560
3.35
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,700
23,980
27,420
30,710
34,000
36,000
2.25
19,980
23,270
26,710
30,000
33,130
34,580
2.46
19,240
22,530
25,960
29,250
31,480
# 33,000
2.69
18,400
21,690
25,130
28,410
29,600
31,250
3.04
17,510
20,800
24,240
27,520
27,560
29,340
3.38
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,680
19,960
23,400
26,690
29,980
37,920
2.27
16,080
19,370
22,800
26,090
29,380
36,600
2.49
15,420
18,710
22,150
25,440
28,720
35,180
2.73
14,710
18,000
21,440
24,720
28,010
33,630
3.08
13,950
17,230
20,670
23,960
27,240
31,910
3.43
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
12,670
15,960
19,400
22,690
25,970
38,680
2.31
12,170
15,460
18,890
22,180
25,470
37,420
2.53
11,630
14,920
18,360
21,640
24,930
36,100
2.77
11,050
14,340
17,780
21,060
24,350
34,580
3.13
10,420
13,710
17,150
20,430
23,720
32,970
3.48
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
11,670
15,100
18,390
21,680
11,230
14,670
17,960
21,240
10,780
14,220
17,510
20,790
10,270
13,710
16,990
20,280
9,740
(23.9)
13,170
16,460
19,750
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 66
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1. Specifications
Indoor Unit: KH2442 Outdoor Unit: CH2442
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
22,000 BTU/h
AIR FLOW RATE:
CONDENSER
540 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
22,290
1.71
(29.4)
(35.0)
19,980
2.03
(40.6)
(46.1)
TC
CI
21,210
1.86
18,590
2.26
17,050
2.49
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
15,990
17,950
20,000
21,960
22,290
23,120
1.72
15,430
17,390
19,440
21,210
21,210
22,090
1.89
14,800
16,760
18,810
19,980
19,980
20,990
2.06
14,110
16,070
18,120
18,590
18,590
19,730
2.29
13,360
15,330
17,050
17,050
17,050
18,370
2.52
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,550
15,510
17,560
19,520
21,480
24,000
1.74
13,060
15,020
17,070
19,030
20,990
23,060
1.9
12,540
14,500
16,550
18,510
20,470
# 22,000
2.08
11,960
13,920
15,970
17,930
19,730
20,830
2.32
11,350
13,310
15,360
17,320
18,370
19,560
2.55
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,100
13,060
15,110
17,070
19,030
25,280
1.76
10,690
12,650
14,700
16,660
18,620
24,400
1.92
10,230
12,190
14,240
16,200
18,160
23,450
2.11
9,740
9,210
67
11,700
13,750
15,710
17,670
22,420
2.35
11,170
13,220
15,180
17,140
21,270
2.59
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
8,670
8,320
7,950
7,550
7,110
71
10,630
12,680
14,640
16,600
25,780
1.79
10,280
12,330
14,290
16,250
24,950
1.96
9,910
9,510
9,070
(21.7)
11,960
13,920
15,880
24,070
2.14
11,560
13,520
15,480
23,060
2.38
11,120
13,080
15,040
21,980
2.63
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
7,980
7,690
7,380
7,020
6,650
(23.9)
10,030
11,990
13,960
9,740
9,430
9,070
8,700
11,700
13,660
11,390
13,350
11,030
12,990
10,660
12,620
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 67
Download from Www.Somanuals.com. All Manuals Search And Download.
1. Specifications
Indoor Unit: KH2442 Outdoor Unit: CH2442
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
21,000 BTU/h
AIR FLOW RATE:
CONDENSER
510 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
21,270
1.75
(29.4)
(35.0)
19,070
2.09
(40.6)
(46.1)
TC
CI
20,240
1.92
17,750
2.33
16,280
2.56
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
15,260
17,130
19,080
20,950
21,270
22,070
1.77
14,730
16,590
18,550
20,240
20,240
21,080
1.94
14,130
16,000
17,950
19,070
19,070
20,030
2.12
13,470
15,340
17,290
17,750
17,750
18,840
2.36
12,760
14,620
16,280
16,280
16,280
17,540
2.6
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
12,940
14,810
16,760
18,630
20,490
22,910
1.79
12,470
14,330
16,290
18,150
20,020
22,010
1.96
11,970
13,840
15,790
17,660
19,530
# 21,000
2.14
11,430
13,290
15,250
17,110
18,840
19,890
2.39
10,840
12,710
14,660
16,530
17,540
18,670
2.63
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
10,600
12,470
14,420
16,290
18,160
24,130
1.81
10,210
12,080
14,030
15,900
17,760
23,290
1.98
9,780
9,310
8,800
67
11,640
13,590
15,460
17,330
22,390
2.17
11,170
13,130
14,990
16,860
21,400
2.42
10,670
12,620
14,490
16,360
20,310
2.67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
8,290
7,960
7,600
7,220
6,800
71
10,160
12,110
13,980
15,840
24,610
1.84
9,820
9,470
9,090
8,670
(21.7)
11,780
13,640
15,510
23,810
2.01
11,420
13,290
15,160
22,970
2.2
11,040
12,910
14,770
22,010
2.46
10,620
12,490
14,360
20,980
2.71
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
7,640
7,350
7,050
6,720
6,360
(23.9)
9,590
9,300
9,010
8,670
8,320
11,460
13,320
11,170
13,040
10,870
12,740
10,540
12,400
10,180
12,050
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 68
Download from Www.Somanuals.com. All Manuals Search And Download.
1. Specifications
Indoor Unit: KH3642 Outdoor Unit: CH3642
• 230V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
33,000 BTU/h
AIR FLOW RATE:
CONDENSER
830 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
33,430
2.32
(29.4)
(35.0)
29,960
2.76
(40.6)
(46.1)
TC
CI
31,810
2.53
27,890
3.06
25,580
3.36
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
23,980
26,900
29,960
32,880
33,430
34,680
2.34
23,130
26,060
29,110
31,810
31,810
33,130
2.57
22,190
25,110
28,170
29,960
29,960
31,480
2.8
21,160
24,080
27,130
27,890
27,890
29,600
3.11
20,030
22,960
25,580
25,580
25,580
27,560
3.42
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,340
23,260
26,320
29,240
32,160
36,000
2.36
19,600
22,520
25,570
28,500
31,420
34,580
2.59
18,820
21,740
24,800
27,720
30,640
# 33,000
2.83
17,960
20,880
23,930
26,850
29,600
31,250
3.14
17,040
19,960
23,010
25,940
27,560
29,340
3.45
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,680
19,600
22,660
25,580
28,500
37,920
2.39
16,060
18,980
22,040
24,960
27,880
36,600
2.62
15,380
18,300
21,360
24,280
27,200
35,180
2.87
14,640
17,560
20,620
23,540
26,460
33,630
3.19
13,850
16,770
19,820
22,750
25,670
31,910
3.5
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,060
15,980
19,040
21,960
24,880
38,680
2.43
12,540
15,460
18,510
21,430
24,360
37,420
2.66
11,980
14,900
17,950
20,880
23,800
36,100
2.91
11,380
14,300
17,350
20,280
23,200
34,580
3.23
10,720
13,640
16,700
19,620
22,540
32,970
3.55
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
12,040
15,090
18,010
20,940
11,590
14,640
17,560
20,480
11,120
14,170
17,090
20,020
10,590
13,640
16,560
19,490
10,030
13,090
16,010
18,930
(23.9)
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 69
Download from Www.Somanuals.com. All Manuals Search And Download.
1. Specifications
Indoor Unit: KH3642 Outdoor Unit: CH3642
• 208V / 1 phase / 60Hz
RATING CAPACITY :
EVAPORATOR
32,000 BTU/h
AIR FLOW RATE:
CONDENSER
750 CFM
ENT.TEMP.°F(°C)
AMBIENT TEMP °F(°C)
WB
DB
75
85
95
105
115
(23.9)
32,420
2.21
(29.4)
(35.0)
29,060
2.62
(40.6)
(46.1)
TC
CI
30,850
2.41
27,040
2.96
24,800
3.3
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
22,940
25,620
28,420
31,100
32,420
33,630
2.23
22,100
24,780
27,580
30,270
30,850
32,130
2.44
21,170
23,850
26,650
29,060
29,060
30,530
2.66
20,140
22,820
25,620
27,040
27,040
28,700
3
19,030
21,710
24,520
24,800
24,800
26,720
3.35
59
(15.0)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
19,550
22,230
25,040
27,720
30,400
34,910
2.25
18,820
21,500
24,300
26,980
29,660
33,540
2.46
18,050
20,730
23,530
26,220
28,900
# 32,000
2.69
17,190
19,870
22,670
25,360
28,040
30,300
3.04
16,280
18,960
21,770
24,450
26,720
28,450
3.38
63
(17.2)
1
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,150
18,830
21,630
24,320
27,000
36,770
2.27
15,530
18,220
21,020
23,700
26,380
35,490
2.49
14,860
17,540
20,340
23,020
25,710
34,110
2.73
14,120
16,810
19,610
22,290
24,970
32,610
3.08
13,340
16,020
18,830
21,510
24,190
30,940
3.43
67
(19.4)
CI
72(22.2)
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
SHC
TC
12,790
15,470
18,280
20,960
23,640
37,500
2.31
12,270
14,950
17,750
20,440
23,120
36,290
2.53
11,710
14,400
17,200
19,880
22,560
35,010
2.77
11,120
13,800
16,610
19,290
21,970
33,540
3.13
10,470
13,160
15,960
18,640
21,320
31,970
3.48
71
(21.7)
CI
75
76(24.4)
80(26.7)
84(28.9)
88(31.1)
SHC
SHC
SHC
SHC
11,780
14,580
17,270
19,950
11,340
14,140
16,820
19,500
10,870
13,680
16,360
19,040
10,350
13,150
15,840
18,520
9,800
(23.9)
12,600
15,290
17,970
TC :Total Cooling Capacity (BTU/h)
SHC:Sensible Heat Capacity (BTU/h)
CI :Compressor Input (kW)
Rating conditions are
:Outdoor Ambient Temp.95° FDB
:Indoor Unit Entering Air Temp.80° FDB/67° FWB
SM830082
I - 70
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1. Specifications
1-8 Heating Capacity
Indoor entering air temperature: 70°F
120
100
80
1
60
10
20
30
40
50
60
Outdoor ambient temp. (°F DB at 75% RH)
2182_X_S
SM830082
I - 71
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: XH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Outdoor fan speed
Low High
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
85 (30)
85 (30)
80 (27)
75 (24)
70 (21)
80 (27)
75 (24)
70 (21)
1
8
8
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2183_X_S
2184_X_S
Indoor Unit: XH3642
Outdoor Unit: CH3642
230V
208V
Outdoor fan speed
Low High
Indoor
temp.
°F (°C)
Outdoor fan speed
Indoor
temp.
°F (°C)
Low
High
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
85 (30)
85 (30)
80 (27)
75 (24)
70 (21)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
1467_X_S
2185_X_S
SM830082
I - 72
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: XH4242
Outdoor Unit: CH4242
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Indoor
temp.
Outdoor fan speed
High
Indoor
temp.
Low
°F (°C)
°F (°C)
24
23
22
21
20
19
18
17
24
23
22
21
20
19
18
17
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
1
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2223_X_S
2224_X_S
SM830082
I - 73
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: TH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Outdoor fan speed
Low High
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
1
8
8
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2187_X_S
2186_X_S
Indoor Unit: TH3642
Outdoor Unit: CH3642
230V
208V
Outdoor fan speed
Indoor
temp.
°F (°C)
Outdoor fan speed
Low High
Indoor
temp.
°F (°C)
Low
High
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
59
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
(15)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
1466_X_S
1467_X_S
SM830082
I - 74
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: TH4242
Outdoor Unit: CH4242
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Indoor
temp.
Outdoor fan speed
High
Indoor
temp.
Low
°F (°C)
°F (°C)
24
23
22
21
20
19
18
17
24
23
22
21
20
19
18
17
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
1
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2223_X_S
2224_X_S
SM830082
I - 75
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: UH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Outdoor fan speed
Low High
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
15
14
13
12
11
10
9
Indoor
temp.
15
14
13
12
11
10
9
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
1
8
8
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2188_X_S
2189_X_S
Indoor Unit: UH3642
Outdoor Unit: CH3642
230V
208V
Outdoor fan speed
Indoor
temp.
°F (°C)
Outdoor fan speed
Low High
Indoor
temp.
°F (°C)
Low
High
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
1466_X_S
1467_X_S
SM830082
I - 76
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(1) Operating Current
1 Indoor Unit: KH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Outdoor fan speed
Low High
Outdoor fan speed
Low High
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
15
14
13
12
11
10
9
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
1
8
8
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
1159_X_S
1160_X_S
Indoor Unit: KH3642
Outdoor Unit: CH3642
230V
208V
Outdoor fan speed
Indoor
temp.
°F (°C)
Outdoor fan speed
Low High
Indoor
temp.
°F (°C)
Low
High
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
85 (30)
80 (27)
75 (24)
70 (21)
85 (30)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2190_X_S
2191_X_S
SM830082
I - 77
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: XH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
15
14
13
12
11
10
9
15
14
13
12
11
10
9
8
8
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2232_X_S
2192_X_S
Indoor Unit: XH3642
Outdoor Unit: CH3642
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
22
21
20
19
18
17
16
15
22
21
20
19
18
17
16
15
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2234_X_S
2233_X_S
SM830082
I - 78
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: XH4242
Outdoor Unit: CH4242
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
25
24
23
22
21
20
19
18
25
24
23
22
21
20
19
18
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2226_X_S
2225_X_S
SM830082
I - 79
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: TH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
15
14
13
12
11
10
9
15
14
13
12
11
10
9
8
8
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2192_X_S
2193_X_S
Indoor Unit: TH3642
Outdoor Unit: CH3642
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
22
21
20
19
18
17
16
15
22
21
20
19
18
17
16
15
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2234_X_S
2233_X_S
SM830082
I - 80
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: TH4242
Outdoor Unit: CH4242
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
25
24
23
22
21
20
19
18
25
24
23
22
21
20
19
18
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2225_X_S
2227_X_S
SM830082
I - 81
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: UH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
15
14
13
12
11
10
9
15
14
13
12
11
10
9
8
8
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2194_X_S
2195_X_S
Indoor Unit: UH3642
Outdoor Unit: CH3642
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
22
21
20
19
18
17
16
15
22
21
20
19
18
17
16
15
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2234_X_S
2233_X_S
SM830082
I - 82
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(1) Operating Current
1 Indoor Unit: KH2442
Outdoor Unit: CH2442
Operating current characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
15
14
13
12
11
10
9
15
14
13
12
11
10
9
8
8
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2232_X_S
2235_X_S
Indoor Unit: KH3642
Outdoor Unit: CH3642
230V
208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
Indoor
temp.
°F (°C)
22
21
20
19
18
17
16
15
22
21
20
19
18
17
16
15
75 (24)
70 (21)
65 (18)
14
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
(–10)
Outdoor ambient temp. °F (°C)
Outdoor ambient temp. °F (°C)
2197_X_S
2196_X_S
SM830082
I - 83
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(2) Operating Pressure
1 Indoor Unit: 24 Type
• High Pressure
Outdoor Unit: CH2442
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
340
320
300
280
260
240
220
200
180
160
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
1
59
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
(15)
Outdoor ambient temp. °F (°C)
1161_X_S
• Low Pressure
Low pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
100
90
80
70
60
50
40
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
1162_X_S
SM830082
I - 84
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(2) Operating Pressure
1 Indoor Unit: 36 Type
• High Pressure
Outdoor Unit: CH3642
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
Indoor
temp.
320
300
280
260
240
220
200
180
160
140
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
1
59
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
(15)
Outdoor ambient temp. °F (°C)
1459_X_S
• Low Pressure
Low pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
Indoor
temp.
°F (°C)
100
90
80
70
60
50
40
85 (30)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
1460_X_S
SM830082
I - 85
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1. Specifications
1-9 Performance Charts
● Cooling Characteristics
(2) Operating Pressure
1 Indoor Unit: 42 Type
• High Pressure
Outdoor Unit: CH4242
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
340
320
300
280
260
240
220
200
180
160
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
1
59
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
(15)
Outdoor ambient temp. °F (°C)
2228_X_S
• Low Pressure
Low pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Outdoor fan speed
Low
High
100
90
80
70
60
50
40
Indoor
temp.
°F (°C)
85 (30)
80 (27)
75 (24)
70 (21)
59
(15)
68
(20)
77
(25)
86
(30)
95
(35)
104
(40)
Outdoor ambient temp. °F (°C)
1162_X_S
SM830082
I - 86
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(2) Operating Pressure
1 Indoor Unit: 24 Type
• High Pressure
Outdoor Unit: CH2442
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
340
320
300
280
260
240
220
200
180
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
1165_X_S
• Low Pressure
Low pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Indoor
temp.
°F (°C)
90
80
70
60
50
40
30
75 (24)
70 (21)
65 (18)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
1166_X_S
SM830082
I - 87
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(2) Operating Pressure
1 Indoor Unit: 36 Type
• High Pressure
Outdoor Unit: CH3642
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Indoor
temp.
°F (°C)
75 (24)
70 (21)
65 (18)
340
320
300
280
260
240
220
200
180
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
1165_X_S
SM830082
I - 88
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1. Specifications
1-9 Performance Charts
● Heating Characteristics
(2) Operating Pressure
1 Indoor Unit: 42 Type
• High Pressure
Outdoor Unit: CH4242
High pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Indoor
temp.
°F (°C)
340
320
300
280
260
240
220
200
180
75 (24)
70 (21)
65 (18)
1
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
2229_X_S
• Low Pressure
Low pressure characteristics versus outdoor ambient temperature and indoor temperature.
(Indoor relative humidity: 50%, Indoor fan speed: High)
230V / 208V
Indoor
temp.
°F (°C)
90
80
70
60
50
40
30
75 (24)
70 (21)
65 (18)
14
(–10)
23
(–5)
32
( 0 )
41
( 5 )
50
(10)
59
(15)
68
(20)
Outdoor ambient temp. °F (°C)
2230_X_S
SM830082
I - 89
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1. Specifications
1-10 Noise Criterion Curves
● 4-Way Air Discharge Semi-concealed Type
MODEL
: XH2442
SOUND LEVEL : HIGH 38 dB(A), NC 31
LOW 31 dB(A), NC 23
CONDITION
: Center, Under the unit 4.9 ft.
208 - 230 V, 1 Phase, 60 Hz
SOURCE
:
60
50
40
30
NC-50
NC-40
NC-30
NC-20
1
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
20
10
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
2108_X_I
MODEL
: XH3642
MODEL
: XH4242
SOUND LEVEL : HIGH 44 dB(A), NC 37
LOW 33 dB(A), NC 25
SOUND LEVEL : HIGH 45 dB(A), NC 38
LOW 34 dB(A), NC 27
CONDITION
SOURCE
60
: Center, Under the unit 4.9 ft.
208 - 230 V, 1 Phase, 60 Hz
CONDITION
SOURCE
60
: Center, Under the unit 4.9 ft.
208 - 230 V, 1 Phase, 60 Hz
:
:
50
40
30
50
40
30
NC-50
NC-50
NC-40
NC-30
NC-20
NC-40
NC-30
NC-20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
20
10
20
10
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
211S0_XM_I830082
2109_X_I
I - 90
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1. Specifications
1-10 Noise Criterion Curves
● Ceiling Mounted Type
MODEL
: TH2442
MODEL
: TH3642
SOUND LEVEL : HIGH 40 dB(A), NC 34
LOW 36 dB(A), NC 26
SOUND LEVEL : HIGH 46 dB(A), NC 39
LOW 37 dB(A), NC 31
CONDITION
:
Distance 3.3 ft., Under the unit 3.3 ft.
CONDITION
:
Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE
: 208 - 230 V, 1 Phase, 60 Hz
SOURCE
: 208 - 230 V, 1 Phase, 60 Hz
60
60
50
40
30
50
40
30
NC-50
NC-50
NC-40
NC-30
NC-20
NC-40
NC-30
NC-20
1
APPROXIMATE
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
20
10
20
10
63
125 250 500 1000 2000 4000 8000
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
BAND CENTER FREQUENCIES, Hz
1221_X_I
2113_X_I
MODEL
: TH4242
SOUND LEVEL : HIGH 47 dB(A), NC 40
LOW 38 dB(A), NC 32
CONDITION
:
Distance 3.3 ft., Under the unit 3.3 ft.
SOURCE
: 208 - 230 V, 1 Phase, 60 Hz
60
50
40
30
NC-50
NC-40
NC-30
NC-20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
20
10
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
SM830082
2114_X_I
I - 91
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1. Specifications
1-10 Noise Criterion Curves
● Concealed Duct Type
MODEL
: UH2442
MODEL
: UH3642
SOUND LEVEL : HIGH 34 dB(A), NC 22 / LOW 27 dB(A), NC 18
CONDITION : Under the unit 4.9 ft.
SOUND LEVEL : HIGH 38 dB(A), NC 30 / LOW 31 dB(A), NC 21
CONDITION : Under the unit 4.9 ft.
SOURCE
: 208 - 230 V, 1 Phase, 60 Hz
SOURCE
: 208 - 230 V, 1 Phase, 60 Hz
60
50
40
60
50
40
NC-50
NC-50
NC-40
NC-30
NC-40
NC-30
30
30
20
20 APPROXIMATE
APPROXIMATE
NC-20
NC-20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
1
10
10
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
63 125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
1761_U_I
1762_U_I
SM830082
I - 92
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1. Specifications
1-10 Noise Criterion Curves
● Wall Mounted Type
MODEL
: KH2442
MODEL
: KH3642
SOUND LEVEL : HIGH 45 dB(A), NC 38
LOW 40 dB(A), NC 33
SOUND LEVEL : HIGH 48 dB(A), NC 41
LOW 40 dB(A), NC 33
CONDITION
: Distance 3.3 ft., Under the unit 3.3 ft.
208 - 230 V, 1 Phase, 60 Hz
CONDITION
: Distance 3.3 ft., Under the unit 3.3 ft.
208 - 230 V, 1 Phase, 60 Hz
SOURCE
:
SOURCE
:
60
60
50
40
30
50
40
30
NC-50
NC-50
NC-40
NC-30
NC-20
NC-40
NC-30
NC-20
1
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
20
10
20
10
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
2120_K_I
2119_K_I
SM830082
I - 93
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1. Specifications
1-10 Noise Criterion Curves
● Outdoor Units
MODEL
: CH2442
MODEL
: CH3642
SOUND LEVEL : 53 dB(A), NC 44
SOUND LEVEL : 56 dB(A), NC 45
CONDITION : Distance 1m, Height 1m
CONDITION : Distance 1m, Height 1m
SOURCE
: 230 - 208 V, 1 Phase, 60 Hz
SOURCE
: 230 - 208 V, 1 Phase, 60 Hz
90
90
80
70
80
70
60
50
40
30
20
60
50
40
30
20
APPROXIMATE
APPROXIMATE
THRESHOLD OF
CONTINUOUS
NOISE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
1
10
8000
1000 2000 4000
250
60
125
500
10
63
125 250 500 1000 2000 4000 8000
BAND CAENTER FREQUENCIES, Hz
0598_C_S
BAND CENTER FREQUENCIES, Hz
0597_C_S
MODEL
: CH4242
SOUND LEVEL : 56 dB(A), NC 47
CONDITION : Distance 1m, Height 1m
SOURCE
: 230 - 208 V, 1 Phase, 60 Hz
90
80
70
60
50
40
30
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
63
125 250 500 1000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
0599_C_S
REMARKS: 1. Value obtained in the actual place where the unit is installed may be slightly higher than the values
shown in this graph because of the conditions of operation, the structure of the building, the background
noise and other factors.
2. The test results were obtained from an anechoic room.
NOTE
To evaluate “Noise level” the maximum number of the measured OCTAVE BAND SOUND PRESSURE LEVEL is used.
Read the number on each BAND CENTER FREQUENCIES (horizontal axis) ranging from 63 Hz to 8000 Hz and select
the maximum value (vertical axis) among them.
SM830082
I - 94
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1. Specifications
1-11 Increasing the Fan Speed
Electrical component box
If external static pressure is too great (due to long
extension of ducts, for example), the air flow volume
may drop too low at each air outlet. This problem may
be solved by increasing the fan speed using the
following procedure:
Jumper cable
Fan
motor
Jumper cable
Fan motor socket
(At shipment)
(Jumper cable installed)
2159_M_I
(1) Remove 4 screws on the electrical component
box and remove the cover plate.
12 Type
18 Type
150
100
50
150
(2) Disconnect the fan motor sockets in the box.
0.5
0.4
0.5
0.4
(3) Take out the jumper cable (sockets at both
ends) clamped in the box.
100
50
0
0.3
0.2
0.1
0
0.3
0.2
(4) Securely connect the jumper cable sockets
between the disconnected fan motor sockets in
step 2.
HT
HH
HT
HH
0.1
0
H
L
(5) Place the cable neatly in the box and reinstall
the cover plate.
H
L
1
0
200
300
400
500
200
300
400
Air Flow (CFM)
Air Flow (CFM)
1981_U_I
1980_U_I
Indoor Fan Performance
24 Type
36 Type
200
150
100
50
0.8
0.6
0.5
0.4
0.3
0.2
0.1
150
100
50
0.5
0.4
0.3
0.2
0.1
0
HT
HT
HH
HH
H
H
L
L
0
0
0
300
500
700
900
500
1000
Air Flow (CFM)
Air Flow (CFM)
1982_U_I
1983_U_I
NOTE
HT : Using the booster cable
H : At shipment
■ How to read the diagram
The vertical axis is the external static pressure (Pa) while the horizontal axis represents the AIR FLOW (CFM).
The characteristic curves for “HT”, “H”, “M” and “L” fan speed control are shown.
The nameplate values are shown based on the “H” air flow. For the 24 type, the air flow is 636 CFM, while the
external static pressure is 49 Pa at “H” position. If external static pressure is too great (due to long extension of
duct, for example), the air flow volume may drop too low at each air outlet.
This problem may be solved by increasing the fan speed as explained above.
SM830082
I - 95
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1. Specifications
1-12 Air throw distance chart
● 4-Way Air Discharge Semi-concealed Type
Model: 24 Type
HORIZONTAL DISTANCE (ft.)
0
3
7
10
13
17
20
0
3
AXIS AIR VELOCITY
7
10
13
2111_X_I
1
Model: 36, 42 Type
HORIZONTAL DISTANCE (ft.)
0
3
7
10
13
17
20
0
3
AXIS AIR VELOCITY
7
10
13
2112_X_I
: LOUVER ANGLE 20˚ in Cooling mode
: LOUVER ANGLE 60˚ in Heating mode
Condition Fan Speed : Hi
Room air temp. : 80 ˚C DB in cooling mode
68 ˚C DB in heating mode
SM830082
I - 96
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1. Specifications
1-12 Air throw distance chart
● Ceiling Mounted Type
Model: 24 Type
HORIZONTAL DISTANCE (ft.)
0
3
7
10 13 17 20 23 26 29 33
0
3
AXIS AIR VELOCITY
7
10
13
17
2115_T_I
Model: 36 Type
HORIZONTAL DISTANCE (ft.)
0
3
7
10 13 17 20 23 26 29 33
0
3
AXIS AIR VELOCITY
1
7
10
13
17
2116_T_I
Model: 42 Type
HORIZONTAL DISTANCE (ft.)
0
3
7
10 13 17 20 23 26 29 33
0
3
AXIS AIR VELOCITY
7
10
13
17
COOLING
HIGH
HEATING
HIGH
68˚ F
FAN SPEED
ROOM AIR TEMP.
LOUVER ANGLE
80˚ F
– 7˚
54˚
: COOLING
: HEATING
2117_T_I
SM830082
I - 97
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1. Specifications
1-12 Air throw distance chart
● Wall Mounted Type
MODEL: KHS2442
Horizontal distance (ft.)
25 30
0
5
10
15
20
45°
5
10
15
0°
67.5°
22.5°
45°
2121_K_S
1
COOLING - - - - - HEATING
FAN SPEED
ROOM AIR TEMP. 80°F
FLAP ANGLE 0°, 22.5°, 45°
HIGH
HIGH
70°F
54°, 67.5°
MODEL: KHS3642
Horizontal distance (ft.)
15 20
0
5
5
10
25
30
33
45°
0°
67.5°
45°
10
13
22.5°
2122_K_S
COOLING - - - - - HEATING
FAN SPEED
ROOM AIR TEMP. 80°F
FLAP ANGLE 0°, 22.5°, 45°
HIGH
HIGH
70°F
45°, 67.5°
SM830082
I - 98
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1. Specifications
1-13 Installation Instructions
● Tubing Length
● Refrigerant tubing between the indoor and
outdoor units should be kept as short as
possible.
Tubing length (L)
INDOOR
UNIT
● Select and decide the installation location so
that the length of the refrigerant tubing will be
within the limits given in Table 1-10.
Elevation difference (H)
OUTDOOR
UNIT
0711_M_I
Fig. 1-1
Table 1-10
Models
Narrow tube in. (mm)
CH2442
CH3642, CH4242
Tubing Data
1/4 (6.35)
3/4 (19.05)
165
3/8 (9.52)
3/4 (19.05)
165
Tubing size
outer dia.
Wide tube
in. (mm)
(ft.)
1
Limit of tubing length
Outdoor unit is higher
Limit of elevation
difference between
the 2 units
165
165
100
than indoor unit
(ft.)
Outdoor unit is lower
than indoor unit
100
(ft.)
Max. allowable tubing length at shipment (ft.)
Required additional refrigerant (oz./ft.)
100
0.48*1
100
0.53*2
No additional charge of compressor oil is necessary.
1
*
*
If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.48 oz./ft..
If total tubing length becomes 100 to 165 ft., charge additional refrigerant (R22) by 0.53 oz./ft..
2
SM830082
I - 99
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1. Specifications
■ SELECTING THE INSTALLATION SITE
Indoor Unit
Ceiling-Mounted Type
AVOID:
Ceiling
● areas where leakage of flammable gas may be
expected.
● places where large amounts of oil mist exist.
Wall
● direct sunlight.
● locations near inverter lamps which may affect
Min.10 inch
Min.10 inch
Front view
performance of the unit.
NOTE
● locations near heat sources which may affect
The rear of the indoor unit can be installed flush
against the wall.
performance of the unit.
Ceiling
Air
discharge
● locations where external air may enter the room
directly. This may cause “sweating” on the air
discharge ports, causing them to spray or drip.
Air intake
Min.2 ft.
● locations where the remote control unit will be
splashed with water or affected by dampness or
humidity.
1
Side view
● installing the remote control unit behind curtains or
1091_T_I
furniture.
● locations where the receiver in the indoor unit is
exposed to the inverter lamp light. Faulty operation
of the unit occurs.
4-Way Air Discharge Type
Concealed-Duct Type
DO:
● select an appropriate position from which every
corner of the room can be uniformly cooled.
● select a location where the ceiling is strong enough
to support the weight of the unit.
● select a location where tubing and drain pipe have
the shortest run to the outdoor unit.
● allow room for operation and maintenance as well
Wall-Mounted Type
as unrestricted air flow around the unit.
● install the unit within the maximum elevation
difference above or below the outdoor unit and
within a total tubing length from the outdoor unit as
detailed in Table 1-10.
Min.
6 inch
Min.
Min.
● allow room for mounting the remote control unit
about 3 ft. off the floor, in an area that is not in
direct sunlight nor in the flow of cool air from the
indoor unit.
6 inch
12 inch
0930_K_I
NOTE
● Air delivery will be degraded if the distance from the
floor to the ceiling is greater than 10 ft..
SM830082
I - 100
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1. Specifications
Exhaust fan
Outdoor Unit
AVOID:
Hot air
Heat source
Out-
door
unit
● heat sources, exhaust fans, etc. (Fig. 2-1)
● damp, humid or uneven locations.
0591_C_I
DO:
Fig. 2-1
● choose a place as cool as possible.
● choose a place that is well ventilated and outside
air temperature does not exceed maximum 115°F
constantly.
Obstacle above
Min.
1 inch
Min.
1 inch
Min.
7 ft.
● allow enough room around the unit for air intake/
4 in.
exhaust and possible maintenance. (Fig. 2-2)
Air
● provide a solid base; about 6 inch above ground level
to reduce humidity and possible water damage in
the unit and decreased service life. (Fig. 2-3)
● use lug bolts or equivalent to bolt down unit,
reducing vibration and noise.
dis-
charge
1
Min. 2 ft.
0931_C_I
Ground
0932_C_I
Fig. 2-2
In case of multiple installations
Unit spacing if air discharge chamber is not used.
Unit spacing when air discharge chamber is used.
Min. 8 inch
Min. 4 ft.
Min. 4 ft.
Min. 5 ft.
Min. 1 ft.
Min. 4 ft.
Min. 4 ft.
Min. 1 ft. 2 inch
Min. 1 ft. 2 inch
Air
discharge
chamber
Min. 12 ft.
Min. 1 ft.
Min. 8 inch
Min. 1 ft.
If you would like to make the separation smaller on the air
discharge side, use an air discharge chamber.
You can install any number of units side-by -side.
Only up to 3 units can be installed side-by-side under the above
conditions. The next group must be spaced at least 1 ft. away
from the first group.
0933_C_S
Air in
Air in
Air
discharge
Concrete block
4 inch × 1 ft. 4 inch
beams or equal
Min. 6 inch
Anchor bolts
(4 pieces)
0934_C_I
Fig. 2-3
SM830082
I - 101
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1. Specifications
■
Air Discharge Chamber for Top Discharge
Air discharge
Install the air-discharge chamber in the field when:
● it is difficult to keep a space of minimum 2 ft.
between the air-discharge outlet and the obstacle.
● the air-discharge outlet is facing the sidewalk and
discharge hot air can annoy the passers-by.
Refer to Fig. 2-4.
0426_C_I
22-5/16"
Recommended outer dimensions of wind shield
(field supply)
3-ø2-3/8" hole
11-13/16"
3 - ø1-9/16" hole
1
21-13/16"
6 - ø15/64" hole
1-7/32"
9-27/32"
9-27/32"
5-5/32"
5-5/32"
23-5/16"
21-13/16"
0936_C_I
1352_C_I
CH3642
CH2442
Fig. 2-4
■ Installing the Outdoor Unit in Heavy
Snow Areas
In locations subject to strong winds, snow-proof
ducting should be fitted and direct exposure to the
wind should be avoided as much as possible.
The following problems may occur when the outdoor
unit is not provided with a platform and snow-proof
ducting.
a) The outdoor fan may not run and there may be
damage to the unit
b) There may be no air flow.
c) The tubing may freeze and burst.
d) The condenser pressure may drop because of
strong wind, and the indoor unit may freeze.
SM830082
I - 102
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1. Specifications
■ Precautions When Installing in Heavy
Snow Areas
(1) The platform should be higher than the maximum.
snow depth. (Fig. 2-5)
In regions with snow fall, the outdoor unit should be
provided with a platform and snow-proof duct.
(2) The two anchoring feet of the outdoor unit should
be attached to the platform, and the platform
should be installed beneath the air-intake side of
the outdoor unit.
(3) The platform foundation must be solid and the
unit must be secured with anchor bolts.
(4) When installing on a roof subject to strong wind,
countermeasures must be taken to prevent the
unit from being overturned.
Without snow-
proof ducting
(Low platform)
Snow-proof
ducting
(High platform)
■
Dimensions of Snow / Wind-proof Ducting
and Refrigerant Tubing Space for Installation
0937_C_I
Fig. 2-5
Fig. 2-6
1
Min. 4"
Outdoor
Unit
12"
Duct
Duct
12"
Outdoor Unit
Duct
Duct
Min. 4"
Unit: inch
1117_C_I
Higher than the
maximum
snow depth
Air
Intake
Air
Intake
Platform (foundation)
About 1/2 of the
unit height
0488_C_I
Fig. 2-7
Example of Installation
0490_C_I
Fig. 2-8
SM830082
I - 103
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1. Specifications
■ ELECTRICAL WIRING
● General Precautions on Wiring
(7) Regulations on wire diameters differ from locality
to locality. For field wiring rules, must follow your
LOCAL ELECTRICAL CODES before beginning.
(1) Before wiring, confirm the rated voltage of the
unit as shown on its nameplate, then carry out
the wiring closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for
each unit, and a power supply disconnect and
circuit breaker for overcurrent protection should
be provided in the exclusive line.
You must ensure that installation complies with all
relevant rules and regulations.
(8) To prevent malfunction of the air conditioner
caused by electrical noise, care must be taken
when wiring as follows:
(3) To prevent possible hazards from insulation
failure, the unit must be grounded.
● The remote control wiring and the inter-unit
control wiring should be wired apart from the
inter-unit power wiring.
(4) Each wiring connection must be done in accor-
dance with the wiring system diagram. Wrong
wiring may cause the unit to misoperate or
become damaged.
● Use shielded wires for inter-unit control wiring
between units and ground the shield on both
sides.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can
be very dangerous. The manufacturer will
accept no responsibility for any damage or
misoperation that occurs as a result of such
unauthorized changes.
1
(9) If the power supply cord of this appliance is
damaged, it must be replaced by a repair shop
appointed by the manufacture, because special
purpose tools are required.
(10) All wiring must be used class 1.
● Recommended Wire Length and Wire Diameter for Power Supply System
Must follow LOCAL ELECTRICAL CODES for wiring.
Outdoor Unit
* AWG = American Wire Gauge
MOP
Trade size
of Conduit
Trade size
of Conduit
(A) Power Supply
Power Supply Terminal Base
Capacity Max. Wire Diameter
Model Name
(Fuse or HACR
type circuit braker)
AWG #12
CH2442
CH3642
3/4 in.
3/4 in.
3/4 in.
25 A
50 A
AWG #6
AWG #6
AWG #6
1-1/4 in.
1-1/4 in.
1-1/4 in.
Max. length 69 ft.
AWG #12
Max. length 69 ft.
AWG #10
Max. length 67 ft.
35 A/40 A (230/208 V) 50 A
CH4242
45 A
50 A
Indoor Unit
MOP
Trade size
of Conduit
Trade size
of Conduit
(B) Power Supply
Max. length 330 ft.
Power Supply Terminal Base
Capacity Max. Wire Diameter
Type
(Fuse or HACR
type circuit braker)
X, K, T, U
3/4 in.
15 A
25 A
AWG #10
3/4 in.
Control Wiring
(C) Inter-Unit Control Wiring
AWG #18 (0.75 mm2)
Use high voltage wire (300 V)*1
Max. 3,300 ft.
(D) Remote Control Wiring
(E) Control Wiring For Group Control
AWG #18* (0.75 mm2)
AWG #18*2 (0.75 mm2)
Max. 1,650 ft.
Max. 1,650 ft. (Total)
1
NOTE
*
*
With ring type wire terminal.
2
Wire joint connection.
SM830082
I - 104
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1. Specifications
● Wiring System Diagrams
(1) Basic wiring diagram for standard control
Indoor Unit
Outdoor Unit
B
R.C. Address on the PCB: 0 (S2, BLK)
(0: Factory shipped state)
1
2
1
2
Inter-unit
0
power wiring
Single phase
230/208V
G
G
Ground
Inter-unit
control wiring
(Low voltage)
U1
U2
U1
L1
U2
L1
Power supply
Single phase
230/208V
C
L2
L2
G
1
2
1
2
1
2
Ground
D
A
Remote controller
(Option)
*Remote controller wirings are wire joint connection.
2085_M_I
NOTE
CH Type
(1) Refer to “Recommended Wire Length and Wide
Diameter for Power Supply System” for the
explanation of “A”, “B”, “C”, “D”, and “E”, in the
above diagrams.
5P terminal board + 2P terminal board
1
1
2 G L1 L2
U1 U2
Inter-unit
control wiring
(2) Inter-Unit Control Wiring (C) and remote control-
ler wiring (D), (E) has no polarity.
Power
supply
Inter-unit
power wiring
2086_M_I
But for other wiring, respect polarity.
Be sure to connect as shown in the Wiring
System Diagram.
KH Type
XH, TH, UH Type
4P terminal board
5P terminal board
(3) R.C. Address should be set before turning the
power on.
(4) Regarding the R.C. Address setting, refer to
Auto. address setting can be executed by a
remote controller automatically.
U1 U2
Inter-unit
1
2
1
2
U1 U2
Remote
controller wiring
Remote
Inter-unit
Inter-unit
Inter-unit
controller wiring
control wiring power wiring
power wiring
control wiring
2103_M_I
2103_M_I
2088_M_I
2087_M_I
SM830082
I - 105
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1. Specifications
(2) Basic wiring diagram for group control
This diagram shows when several units (max. 8) are
controlled by a remote controller. In this case, a
remote controller can be connected at any indoor unit.
Indoor Unit
Outdoor Unit
B
*1
R.C. Address on the PCB: 1 (S2, BLK)
1
2
1
2
Inter-unit
power wiring
single phase
230/208V
G
G
Ground
Ground
Ground
Inter-unit
control wiring
(Low voltage)
U1
U2
U1
U2
4
L1
L1
Power supply
single phase
230/208V
C
L2
1
2
1
2
1
2
L2
G
RED
BLK
Ground
A
A
A
Remote controller
(Option)
D
E
Indoor Unit
Outdoor Unit
1
B
R.C. Address on the PCB: 2 (S2, BLK)
1
2
1
2
Inter-unit
power wiring
single phase
230/208V
Inter-unit
control wiring
(Low voltage)
U1
U2
U1
U2
4
L1
L1
Power supply
single phase
230/208V
C
L2
1
2
L2
G
Ground
E
Indoor Unit
Outdoor Unit
B
R.C. Address on the PCB: 8 (S2, BLK)
1
2
1
2
Inter-unit
power wiring
single phase
230/208V
Inter-unit
control wiring
(Low voltage)
U1
U2
U1
U2
4
L1
L1
Power supply
single phase
230/208V
C
L2
1
2
L2
G
Ground
*Remote controller wirings are wire joint connection.
2089_M_I
NOTE
● R.C. Address should be set before turning the power on.
● Auto. address setting can be executed by a remote controller automatically.
Please refer to “Automatic Address Setting Method”.
● Each successive unit will respond at one-second intervals following the order of the R.C. address when the
remote controller is operated.
SM830082
I - 106
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1. Specifications
Electrical characteristics
■ Electrical Data
Indoor model: XH2442 / Outdoor model: CH2442
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.6 - 0.6
0.12 - 0.11
0.6 - 0.6
0.12 - 0.11
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
9.7 - 10.1
2.15 - 2.07
11.1 - 12.0
2.50 - 2.47
66 - 60
11.2 - 11.6
Rating conditions
2.45 - 2.35
12.6 - 13.5
2.80 - 2.75
68 - 62
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.4 - 0.4
0.09 - 0.08
0.4 - 0.4
0.09 - 0.08
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
10.4 - 11.0
2.23 - 2.20
10.8 - 11.7
2.43 - 2.40
66 - 60
11.7 - 12.3
Rating conditions
2.50 - 2.45
12.1 - 13.0
2.70 - 2.65
68 - 62
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 107
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1. Specifications
Indoor model: XH3642 / Outdoor model: CH3642
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.9 - 0.8
0.20 - 0.16
0.9 - 0.8
0.20 - 0.16
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
12.7 - 13.2
2.79 - 2.70
15.4 - 16.7
3.43 - 3.41
95 - 86
15.4 - 15.8
Rating conditions
3.35 - 3.20
18.1 - 19.3
3.99 - 3.91
98 - 89
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.7 - 0.6
0.16 - 0.12
0.7 - 0.6
0.16 - 0.12
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
15.7 - 16.9
3.33 - 3.29
14.2 - 15.6
3.16 - 3.21
95 - 86
18.2 - 19.3
Rating conditions
3.85 - 3.75
16.7 - 18.0
3.68 - 3.67
98 - 89
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 108
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1. Specifications
Electrical characteristics
■ Electrical Data
Indoor model: XH4242 / Outdoor model: CH4242
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 V
Complete Unit
Fan Motor
Performance at
230 V
208 V
0.9
230 V
1.8
208 V
208 V
18.3
3.58
21.9
4.33
131
230 V
20.6
4.2
208 V
21.0
A
kW
A
1.0
0.2
1.0
0.2
2
1.8
0.34
1.8
0.34
2
17.8
3.64
21.0
4.41
131
Rating conditions
0.17
0.9
0.36
1.8
4.09
23.8
4.97
134
24.6
Full load conditions
Starting amperes
● Heating
kW
A
0.17
2
0.36
2
4.84
133.9
1
Indoor Unit
Fan Motor
Outdoor Unit
Fan Motor Compressor
230 V 208 V
Complete Unit
Performance at
230 V
208 V
0.8
230 V
1.8
208 V
1.8
230 V
21.6
208 V
A
kW
A
0.9
0.19
0.9
0.19
2
18.9
3.9
19.6
3.85
22.8
4.52
131
22.2
4.35
25.4
5.02
133.8
Rating conditions
0.16
0.8
0.36
1.8
0.34
1.8
4.45
21.2
4.48
131
23.9
Full load conditions
Starting amperes
kW
A
0.16
2
0.36
2
0.34
2
5.03
133.9
Cooling:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature 80 °F DB / 67 °F WB
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 109
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1. Specifications
Indoor model: TH2442 / Outdoor model: CH2442
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.4 - 0.4
0.08 - 0.07
0.4 - 0.4
0.08 - 0.07
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
9.4 - 10.0
2.09 - 2.04
11.0 - 11.7
2.45 - 2.42
66 - 60
10.7 - 11.3
Rating conditions
2.35 - 2.28
12.3 - 13.0
2.71 - 2.66
68 - 62
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Fan Motor
Outdoor Unit
Complete Unit
Fan Motor
Compressor
Performance at
230 - 208 V / 1 phase / 60 Hz
230 - 208 V / 1 phase / 60 Hz
A
kW
A
0.4 - 0.4
0.08 - 0.07
0.4 - 0.4
0.08 - 0.07
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
10.4 - 11.6
2.29 - 2.26
11.4 - 11.8
2.55 - 2.44
66 - 60
11.7 - 12.9
Rating conditions
2.55 - 2.50
12.7 - 13.1
2.81 - 2.68
68 - 62
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 110
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1. Specifications
Indoor model: TH3642 / Outdoor model: CH3642
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.7 - 0.7
0.16 - 0.14
0.7 - 0.7
0.16 - 0.14
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
12.6 - 13.2
2.83 - 2.69
15.4 - 16.8
3.45 - 3.38
95 - 86
15.1 - 15.7
Rating conditions
3.35 - 3.17
17.9 - 19.3
3.97 - 3.86
97.7 - 88.7
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.7 - 0.7
0.16 - 0.14
0.7 - 0.7
0.16 - 0.14
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
15.7 - 17.1
3.43 - 3.41
13.6 - 14.6
3.02 - 2.98
95 - 86
18.2 - 19.6
Rating conditions
3.95 - 3.89
16.1 - 17.1
3.54 - 3.46
97.7 - 88.7
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 111
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1. Specifications
Indoor model: TH4242 / Outdoor model: CH4242
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 V
Complete Unit
Fan Motor
Performance at
230 V
208 V
0.7
230 V
1.8
208 V
208 V
18.8
3.71
22.6
4.49
131
230 V
20.6
4.3
208 V
21.3
4.2
A
kW
A
0.8
0.18
0.8
0.18
1
1.8
0.34
1.8
0.34
2
18.0
3.76
21.0
4.49
131
Rating conditions
0.15
0.7
0.36
1.8
23.6
5.03
133.8
25.1
4.98
133.7
Full load conditions
Starting amperes
● Heating
kW
A
0.15
1
0.36
2
1
Indoor Unit
Fan Motor
Outdoor Unit
Fan Motor Compressor
230 V 208 V
Complete Unit
Performance at
230 V
208 V
0.7
230 V
1.8
208 V
1.8
230 V
21.7
208 V
A
kW
A
0.8
0.18
0.8
0.18
1
19.1
3.91
21.2
4.52
131
20.0
3.86
23.6
4.67
131
22.5
4.35
26.1
5.16
133.7
Rating conditions
0.15
0.7
0.36
1.8
0.34
1.8
4.45
23.8
Full load conditions
Starting amperes
kW
A
0.15
1
0.36
2
0.34
2
5.06
133.8
Cooling:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature 80 °F DB / 67 °F WB
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
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1. Specifications
Indoor model: UH2442 / Outdoor model: CH2442
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.9 - 0.8
0.18 - 0.16
0.9 - 0.8
0.18 - 0.16
2 - 2
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
9.7 - 10.4
2.19 - 2.15
11.1 - 12
2.53 - 2.48
66 - 60
11.5 - 12.1
Rating conditions
2.55 - 2.48
12.9 - 13.7
2.89 - 2.81
67.9 - 61.8
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.7 - 0.7
0.16 - 0.14
0.7 - 0.7
0.16 - 0.14
2 - 2
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
10.4 - 10.9
2.31 - 2.24
11.2 - 12.2
2.49 - 2.47
66 - 60
12 - 12.5
2.65 - 2.55
12.8 - 13.8
2.83 - 2.8
67.7 - 61.7
Rating conditions
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 113
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1. Specifications
Indoor model: UH3642 / Outdoor model: CH3642
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
1 - 1
0.22 - 0.2
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
12.3 - 13.7
2.77 - 2.63
15.4 - 16.8
3.45 - 3.38
95 - 86
15.1 - 15.7
Rating conditions
3.35 - 3.17
18.2 - 19.6
4.03 - 3.92
98 - 89
Full load conditions
Starting amperes
● Heating
kW
A
0.22 - 0.2
2 - 2
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.9 - 0.8
0.21 - 0.18
0.9 - 0.8
0.21 - 0.18
2 - 2
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
15.5 - 17
3.21 - 3.24
14.7 - 16
3.32 - 3.29
95 - 86
18.2 - 19.6
Rating conditions
3.78 - 3.76
17.4 - 18.6
3.89 - 3.81
97.9 - 88.8
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 114
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1. Specifications
Indoor model: KH2442 / Outdoor model: CH2442
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.4 - 0.4
0.08 - 0.07
0.4 - 0.4
0.08 - 0.07
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
9.0 - 9.6
2.04 - 1.98
11.0 - 11.7
2.46 - 2.44
66 - 60
10.3 - 10.9
Rating conditions
2.30 - 2.22
12.3 - 13.0
2.72 - 2.68
68 - 62
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.4 - 0.4
0.08 - 0.07
0.4 - 0.4
0.08 - 0.07
1 - 1
0.9 - 0.9
0.18 - 0.17
0.9 - 0.9
0.18 - 0.17
1 - 1
10.0 - 10.9
2.24 - 2.19
11.1 - 11.7
2.52 - 2.44
66 - 60
11.3 - 12.2
Rating conditions
2.50 - 2.43
12.4 - 13.0
2.78 - 2.68
68 - 62
Full load conditions
Starting amperes
kW
A
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 115
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1. Specifications
Indoor model: KH3642 / Outdoor model: CH3642
● Cooling
Indoor Unit
Outdoor Unit
Fan Motor Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Performance at
A
kW
A
0.5 - 0.5
0.10 - 0.09
0.5 - 0.5
0.10 - 0.09
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
12.6 - 13.2
2.83 - 2.69
15.4 - 16.8
3.45 - 3.38
95 - 86
14.9 - 15.5
Rating conditions
3.29 - 3.12
17.7 - 19.1
3.91 - 3.81
97.5 - 88.5
Full load conditions
Starting amperes
● Heating
kW
A
1
Indoor Unit
Outdoor Unit
Compressor
230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz
Complete Unit
Fan Motor
Fan Motor
Performance at
A
kW
A
0.5 - 0.5
0.10 - 0.09
0.5 - 0.5
0.10 - 0.09
1 - 1
1.8 - 1.8
0.36 - 0.34
1.8 - 1.8
0.36 - 0.34
2 - 2
15.5 - 16.8
3.40 - 3.38
14.7 - 16.0
3.32 - 3.29
95 - 86
17.8 - 19.1
Rating conditions
3.86 - 3.81
17 - 18.3
Full load conditions
Starting amperes
kW
A
3.78 - 3.72
97.5 - 88.5
Cooling:
Rating Conditions
: Indoor Air Temperature
80 °F DB / 67 °F WB
Outdoor Air Temperature 95 °F DB
Full Load Conditions : Indoor Air Temperature
Outdoor Air Temperature 115 °F DB
80 °F DB / 67 °F WB
Heating:
Rating Conditions
: Indoor Air Temperature
Outdoor Air Temperature 47 °F DB / 43 °F WB
Full Load Conditions : Indoor Air Temperature
70 °F DB / 60 °F WB
80 °F DB / — °F WB
Outdoor Air Temperature 45 °F DB / 35 °F WB
SM830082
I - 116
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2. PROCESSES AND FUNCTIONS
2-1 Room Temperature Control ...................................................................... II - 2
(A)Cooling ................................................................................................ II - 2
(B)Heating ................................................................................................ II - 3
2-2 Cold Draft Prevention (Heating Cycle)...................................................... II - 4
2-3 Automatic Fan Speed (Indoor Unit) .......................................................... II - 5
(A)Cooling ................................................................................................ II - 5
(B)Heating ................................................................................................ II - 5
2-4 Outdoor Fan Speed Control...................................................................... II - 6
(A)Cooling ................................................................................................ II - 6
(B)Heating ................................................................................................ II - 6
2-5 Freeze Prevention (Cooling)..................................................................... II - 7
2-6 Condensing Temperature Control (Cooling)............................................. II - 8
2-7 Overload Protection (Heating) .................................................................. II - 9
2-8 Discharge Temperature Control (Cooling and Heating) ........................... II -10
2-9 Auto. Mode for Automatic Heating/Cooling Switching .............................. II -11
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating) .................... II -13
2-11 4-Way Valve, Solenoid Control ................................................................. II -14
(A) Normal Control Mode.......................................................................... II -14
(B) AUTO Control Mode ........................................................................... II -15
2-12 Automatic Restart after Power Interruption............................................... II -15
2-13 Electronic Refrigerant Control Valve......................................................... II -16
2-14 Compressor Discharge Gas Temperature................................................ II -16
(A)Cooling ................................................................................................ II -16
(B)Heating (Except During Defrosting) ..................................................... II -16
2-15 Compressor Current Detection Circuit...................................................... II -17
2-16 Electronic Refrigerant Control Valve Control ............................................ II -18
2-17 Voltage Detection Control......................................................................... II -19
n
2
SM830082
II - 1
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2. Processes and functions
2-1 Room Temperature Control
The Unit adjusts room temperature by turning the outdoor unit’s compressor ON and OFF.
This process is controlled by the thermostat located in the remote control unit.
The figures on this and the next pages show how each part of the system performs when the
room temperature changes and the thermostat activates the compressor to start (thermo ON)
or stop (thermo OFF). Fig. 1 shows about the cooling cycle, and Fig. 2 shows about the
heating cycle.
(A) Cooling
(THERMO. OFF)
THERMO. OFF
(THERMO. ON)
ROOM TEMP.
THERMO. ON
BODY SENSOR
T+2 °F
SET TEMP. T °F
T–2 °F
S
MORE THAN
5 MINUTES
MORE THAN
3 MINUTES
MORE THAN
5 MINUTES
3 MINUTES
OFF
5 MINUTES
ON
COMPRESSOR
1
OUTDOOR FAN
(H OR M)
ON
ON
OFF
OFF
ON
ON
OFF
ON
2
SET SPEED
1. Refer to 2-4 Outdoor Fan Speed Control
INDOOR FAN
1133_THS_I
Fig. 1
Chart Summary and Explanations
❑
❑
❑
Once the compressor starts, it keeps running for 5 minutes.
Once the compressor stops, it will not start running again for 3 minutes.
If you change the operation mode (HEAT, COOL, or FAN) during the cooling cycle, the
control circuit stops the compressor for 3 minutes.
❑
❑
For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off,
the compressor is not controlled by the room sensor.
Thermo ON: When room temperature rises 2°F (4°F when set on body sensor) above
the set temperature T˚, (T˚+2°F or T˚+4°F when set on body sensor):
Compressor ➞ ON
Thermo OFF: When the room temperature is –2°F below the set temperature T˚:
Compressor ➞ OFF
❑
SM830082
II - 2
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2. Processes and functions
(B) Heating
THERMO. ON
THERMO. ON
REMOTE CONTROL
SENSOR
THERMO. OFF
THERMO. OFF
THERMO. ON
(Only for wireless
remote controller)
SET. +2°F
SETTING TEMP.
SET. –2°F
THERMO. OFF
THERMO. OFF
THERMO. ON
BODY SENSOR
THERMO. ON
THERMO. ON
+2°F
SET TEMP.+7°F SHIFT
–2°F
SET TEMP.
MORE THAN
3 MINUTES
MORE THAN
5 MINUTES
5 MINUTES
ON
3 MINUTES
OFF
n
OFF
OFF
OFF
ON
OFF
OFF
ON
COMPRESSOR
1
OUTDOOR FAN
(H OR M)
ON
OFF
ON
ON
3 SECONDS
2
SET SPEED
SET SPEED
OFF
SET SPEED
OFF
LL
LL
L
L
LL
INDOOR FAN
2
OFF ON
ON
ON
OFF
STANDBY
(88°F)
INDOOR HEAT
EXCH.
2
COIL
TEMP.
81°F
77°F
E2
SOLENOID
COIL (4-WAY)
TEMP.
ON (REVERSING CYCLE)
ON
OPERATION
BUTTON
OFF
1. Refer to 2-4 Outdoor Fan Speed Control
2. Refer to 2-2 Cold Draft Prevention (Heating)
1134_THS_I
Fig. 2
Chart Summary and Explanations
❑
❑
❑
Once the compressor starts, it keeps running for 5 minutes.
Once the compressor stops, it will not start running again for 3 minutes.
If you change the operation mode (HEAT, COOL or FAN) during the heating cycle, the
control circuit stops the compressor for 3 minutes.
❑
For 5 minutes after the compressor is first turned on, and for 3 minutes after it is turned off,
the compressor is not controlled by the room sensor.
When set on remote control sensor
Thermo ON: When room temperature is –2°F below the set temperature T˚.
Compressor ➞ ON
Thermo OFF: When the room temperature is 2°F above the set temperature T˚, (T˚+2°F)
Compressor ➞ OFF
When set on body sensor
NOTE: In case of Body sensor, operating temperature is shifted to setting temperature +7°F.
SM830082
II - 3
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2. Processes and functions
2-2 Cold Draft Prevention (Heating Cycle)
The cold draft prevention function controls indoor fan speed so a strong draft of cold air will
not blow out before the indoor heat exchange coils have warmed up.
❑ STANDBY shows on the remote controller when the indoor fan speed is LL (very
low) or OFF. This condition occurs in the following 3 cases:
• During Thermo OFF (refer to 2-1 B). Room Temperature Control, Heating)
• During the defrosting operation (refer to 2-10 Defrosting Control, Heating)
• Until either the coil temperature E2 reaches 81°F or when a maximum of 6 minutes
has past.
❑ The indoor fan motor operates in L instead of LL for 3 seconds as it starts to give
the fan an initial boost.
S
92
MAX. 6 MINUTES
88
INDOOR UNIT
COIL TEMP.
E2 (°F)
81
77
2
50
AUTO OR H LL
LL/OFF
LL/OFF
LL/OFF
LL
LL
LL
L
L
L
M
M
L
H
M
L
SET
FAN
M
L
LL
LL
SPEED
“STANDBY”
INDICATOR
“STANDBY” APPEARS
LL= Very low speed
L= Low speed
M= Medium speed
H= High speed
1135_THS_I
Fig. 3
Chart Summary and Explanations
❑
❑
❑
The main idea of this chart is to show that the indoor fan speed increases and gets closer to
the set fan speed as the coil temperature E2 rises.
The indoor unit’s coil temperature is taken from sensor E2 located in the middle of the indoor
heat exchange coil.
The dotted line shows that the indoor fan motor is OFF. When the temperature at sensor E2
falls below 50°F, the indoor fan motor stops running.
SM830082
II - 4
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2. Processes and functions
2-3 Automatic Fan Speed (Indoor Unit)
By pressing the FAN SPEED button on the remote controller, the fan speed can be set at
one of four steps: AUTO., HI., MED., or LO. When set at AUTO. the indoor unit fan speed
will be automatically adjusted to the room temperature as the two charts shown below.
(A) Cooling
ROOM TEMP.
(deg)
+3
+2
+1
SET TEMP.
n
INDOOR FAN
H
H
SPEED
M
M
L
H : High
M: Middle
L : Low
1923_M_S
Fig. 4
Chart Explanations and notes
❑
When the fan speed changes, it keeps the speed step for at least 3 minutes, even if the
temperature changes to another speed step during the time.
2
(B) Heating
ROOM TEMP.
(deg)
SET TEMP.
–2
–4
INDOOR FAN
H
SPEED
H
M
M
L
H : High
M : Middle
L : Low
1924_M_S
Fig. 5
Chart Explanations and notes
❑
When the fan speed changes, it keeps the speed step for at least 1 minute, even if the
temperature changes to another speed step during the time.
SM830082
II - 5
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2. Processes and functions
2-4 Outdoor Fan Speed Control
To optimize the performance of air conditioner, the outdoor fan speed is selected
automatically according to the outdoor temperature.
❑ Note that in both Cooling and Heating modes, the fan comes on at first at high
speed (H mode) for 5 seconds. Since outdoor conditions sometimes make it
difficult for the fan to start, this sudden surge of power may be necessary.
❑ The outdoor fan operates in H mode for 3 minutes after the compressor stops
(excluding defrosting operation period).
❑ Charts below show how the outdoor fan speed changes with the change in
outdoor temperature.
S
(A) Cooling
Outdoor unit coil
temperature [C2]
Outdoor fan
motor (FMo)
H
or more 77°F
H
M
L
77
32
32°F or more, less than 77°F
less than 32°F
M
L
2
Fig. 6
(B) Heating
Outdoor coil
temperature [C2]
Outdoor fan
motor (FMo)
M
or more 57°F
less than 57°F
M
H
57
H
Fig. 7
SM830082
II - 6
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2. Processes and functions
2-5 Freeze Prevention (Cooling)
Freeze Prevention keeps the indoor heat exchange coil from freezing. Freezing reduces the
efficiency of the unit, and frost build up on the coil blocks cool air circulation from the indoor
unit's fan.
MIN. VALUE OF
EITHER E1 OR E2
INDOOR UNIT
TEMP.
34
33
32
31
n
CONTINUOUS
DETECTION
FOR 2 MINUTES
(°F)
ELECTRONIC REF.
CONTROL
VALVE SIGNAL
OPEN
OPEN
COMPRESSOR
MINIMUM 3
MINUTES
ON
ON
1925_THS_I
2
Fig. 8
Note: Freeze prevention is controlled by the temperature at the indoor heat
exchanger coil as sensed by either sensor E1 (located at the entrance
of the coil) or sensor E2 (located on the middle of the coil). Freeze
prevention cycle is controlled by the lower temperature sensed at either
of the two sensors.
Chart Explanations and notes
❑
❑
This chart shows when the electronic refrigerant control valve opens to regulate the
temperature of the indoor unit coil to prevent freezing.
If the refrigerant control is not effective and the temperature continues to drop and stays
below 31°F for 2 minutes continuously, the control circuit stops the compressor. The
compressor does not start again until the temperature rises above 34°F.
The compressor stops for 3 minutes minimum.
SM830082
II - 7
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2. Processes and functions
2-6 Condensing Temperature Control (Cooling)
Condensing temperature is controlled by the outdoor heat exchanger coil temperature as
sensed by sensor C2.
140
OUTDOOR UNIT
COIL TEMP. C2
(°F)
131
OUTDOOR FAN
FORCED
SPEED
H, M or L
H, M or L
H
S
ELECTRONIC REF.
CONTROL VALVE
OPEN
1926_THS_I
Fig. 9
Chart Explanations and notes
2
❑
This chart shows how the outdoor fan speed and the electronic refrigerant control valve
react to coil temperature to control condensing temperature.
❑
❑
Sensor C2 is located in the middle of the outdoor unit heat exchange coil.
When C2 rises above 140°F the electronic refrigerant control valve opens at 50 steps/30
seconds, and the outdoor fan speed is forced to change to high (H) until C2 falls below
131°F.
SM830082
II - 8
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2. Processes and functions
2-7 Overload Protection (Heating)
This function prevents the air conditioner from overloading.
(°F)
147
144
140
INDOOR UNIT COIL
TEMP. (E2)
138
131
127
OVERLOAD
PROTECTION
OVERLOAD PROTECTION
n
FUZZY CONTROL
FUZZY CONTROL
ELECTRONIC REF.
CONTROL VALVE
OPEN
OPEN
START UP
COMPENSATION
OFF
OUTDOOR FM
H OR M
H
L
H OR M
1927_THS_I
2
Fig. 10
Chart Explanations and notes
❑
❑
This chart shows how the outdoor fan speed and the electronic refrigerant control valve
react to coil temperature to keep the indoor heat exchanger coil from overloading.
When sensor E2 rises above 140°F the electronic refrigerant control valve opens at 50
steps/30 seconds until E2 falls below 138°F.
❑
❑
Sensor E2 is located in the middle of the indoor unit heat exchange unit.
When sensor E2 rises above 144°F, the control circuit stops the outdoor fan motor till the
temp. drops to 131°F
❑
Fuzzy control controls the electronic refrigerant control valve.
SM830082
II - 9
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2. Processes and functions
2-8 Discharge Temperature Control (Cooling and Heating)
This function prevents the compressor motor from burnout by overheating.
(42 Type) (24, 36 Type)
275
239
257
239
221
203
235
230
221
200
194
185
DISCHARGE GAS
TEMP. (°F)
S
OUTDOOR
FAN SPEED
H OR M
H OR M
L
COMPRESSOR
ON
ELECTRONIC REF.
CONTROL VALVE
(DISCHARGE TEMP.)
OPEN
OPEN
TRIP IS OPERATED.
2
1928_THS_I
Fig. 11
Chart Summary and Explanations
❑
❑
Discharge temperature is sensed by TH8 (discharge gas sensor).
When the temperature rises above 203°F (24, 36 Type) the electronic refrigerant control
valve opens at 50 steps/30 seconds until the temperature falls below 200°F (24, 36 Type) .
❑
During HEATING operation, when the temperature rises above 221°F (24, 36 Type), the
control circuit stops the outdoor fan motor until the temperature falls below 194°F (24, 36
Type). Please note that this control does not function during COOLING operation.
❑
❑
For both COOLING and HEATING modes, if the temperature reaches 239°F (24, 36 Type)
the operation shuts down and alarm P3 appears on the remote controller.
The outdoor fan speed is controlled on discharge temp. at heating mode.
SM830082
II - 10
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2. Processes and functions
2-9 Auto. Mode for Automatic Heating/Cooling Switching
❑ When the AUTO mode is selected, the microprocessor calculates the difference
between the set temperature and the room temperature, and automatically switches
to the COOLING or HEATING mode to maintain the desired temperature.
Room temp. ] Set temp. ➔ COOLING
Room temp. < Set temp. ➔ HEATING
This means that if the room temperature is higher or equal to the set temperature,
COOLING operation starts. If the room temperature is lower than the set
temperature, HEATING operation starts.
A
COOLING SELECTION TEMP.
+5 deg
n
SHIFT SET TEMP.
+4 deg
REMOTE CONTROLLED
B
SET TEMP.
SHIFT SET TEMP.
–4 deg
HEATING SELECTION TEMP.
–6 deg
2
C
HEATING
COOLING
HEATING
1142_THS_I
Fig. 12
SM830082
II - 11
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2. Processes and functions
Chart summary and Explanations
❑
❑
❑
This chart shows how the Operation Mode (COOLING or HEATING) is determined by the
microprocessor taking the room temperature into consideration. It also shows the
temperature points at which the cooling or heating mode is switched, when the AUTO mode
is selected.
After operation starts, the set temperature shifts automatically by +4 deg. at cooling and
by -4 deg. at heating. For example, if cooling is selected, the set temperature changes from
68°F to 72°F.
(The display of the remote controller remains 68°F.)
The change of the operation mode (heating to cooling, cooling to heating) by the change of
the room temperature during the operation is as follows.
Heating to Cooling; Room temp. ≥ Shifted temp +1.0 deg.
Cooling to Heating; Room temp. ≤ Shifted temp -2.0deg.
For example, if the room temperature rises above 73°F (=72+1) during the cooling
operation at the room temperature 68°F set by the remote controller, the operation changes
to cooling. When the room temperature lowers below 63°F (=65-2) thereafter, the operation
changes to heating again.
S
❑
In heating operation, using the body sensor, room temperature control is designed so that
room air temp. is sensed as 8 deg. lower than suctioned air at indoor unit taking into
account of the temperature gap between upper part and lower part of the room.
❑
❑
Within 10 minutes after the compressor turns OFF, the operation does not change to
cooling (heating), even when the room temperature changes from C to A (A to C).
When switching from cooling (heating) to heating (cooling), the actuation of the 4 way valve
will delay about 30-50 seconds after the compressor turns ON.
2
SM830082
II - 12
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2. Processes and functions
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating)
When the outdoor temperature is low, frost may form on the outdoor heat exchanger coil.
When this occurred, the defrosting system operates. The microprocessor in the outdoor unit
monitors the relationship between the temperature of the outdoor heat exchanger coil and the
outdoor temperature so it can defrost when necessary.
Flow of Defrosting
OUTDOOR COIL
TEMP. C1 (°F)
Y
“RELEASE OF
DEFROSTING”
RANGE
Heating operation
50
OUTDOOR AIR TEMP.
(°F)
X
No counting time for detecting
frost : 15 minutes
7.3
50
27
18
n
The area below the heavy line
is the frost detection area.
Detecting the frost
–4
Stand by time for defros:
25 minutes
Either continuous 8 minutes or cumulative 60 minutes
are required to detect frost in the “Frosting” range.
Defrosting
Refer to time chart.
*Minimum continuous operating time by defrosting is 48 minutes (= 15 + 8 + 25).
2
Occurs either when the temperature of C1 (the outdoor
heat exchanger coil) has reached 50°F or above,
or when the maximum defrosting time (9 minutes)
has elapsed.
Release of defrosting
1143_THS_I
Fig. 13
Time Chart for Defrosting
1 MINUTE
ON
MAX. 9 MINUTES
ON
1 MINUTE
ON
COMPRESSOR
SOLENOID COIL
(4 WAY VALVE)
ON
ON
ON
ON
OUTDOOR FAN
(H OR L)
INDOOR FAN
(SET SPEED)
OFF
OR LL
OFF OR LL
“STANDBY”
INDICATOR
“STANDBY” APPEARS
Defrosting
Start
Release of
Defrosting
0442_M_S
Fig. 14
❑
❑
During the defrost cycle, STANDBY appears on the remote controller.
*......Cold Draft Prevention may operate occasionally
SM830082
II - 13
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2. Processes and functions
2-11 4-Way Valve, Solenoid Control
The basic function of the 4-way valve is to direct the refrigerant in the correct direction
according to the Operation Mode (COOLING or HEATING) selected.
The following two charts show conditions of the controls and functions listed in the left hand
column when the solenoid is ON or OFF. Chart (A) on this page shows the relationships when
the temperature control is in NORMAL mode, and Chart (B) on the next page shows the
relationships when the remote controller is set to AUTO mode.
(A) Normal Control Mode
OFF
ON
POWER SOURCE
S
OPERATION
BUTTON
ON
OFF
ON
COOL
COOL
MODE
BUTTON
HEAT
HEAT
HEAT
2
3 MINUTES
ON
TURN ON
THERMO OFF
THERMO OFF
THERMO
ON
TURN OFF
THERMO
ON
2
OFF
ON
1
OFF
2
ON
OFF
2
ON
COMPRESSOR
1
1
1
SOLENOID COIL
(4-WAY VALVE)
OFF
ON
OFF
ON
1. . . More than 5 minutes
2. . . More than 3 minutes
0443_M_S
Fig. 15
Chart Summary and Explanations
❑
❑
❑
For the first 3 minutes after power is applied, the 4–way valve remains OFF and the
compressor will not operate, even if the ON button is pushed.
If the 4–way valve is turned OFF with the compressor operating, the air conditioner
operates in COOLING mode. See Table below.
If the 4–way valve is turned ON with the compressor operating, the air conditioner operates
in HEATING mode. See Table below.
4-way valve
solenoid
Operation Mode
Compressor
ON
COOLING
HEATING
OFF
ON
SM830082
II - 14
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2. Processes and functions
(B) AUTO Control Mode
POWER SOURCE OFF
ON
OPERATION
BUTTON
ON
MORE THAN 10 MINUTES MORE THAN 10 MINUTES
(THERMO. OFF) (THERMO. OFF)
AUTO
COOL
COOL
MODE
CONTROL HEAT
HEAT
HEAT
THERMO. OFF
THERMO. ON
3 MINUTES
MORE THAN
3 MINUTES
OFF
COMPRESSOR
OFF
OFF
ON
OFF
MORE THAN
ON
OFF
ON
ON
n
MORE THAN
30 – 50 SECONDS
30 – 50 SECONDS
SOLENOID COIL
(4-WAY VALVE)
ON
OFF
ON
0445_M_S
Fig. 16
When the Compressor has stopped while in AUTO mode, the 4-way valve switches on
(heating) or off (cooling) within 1 minute according to the following conditions:
2
Compressor has stopped
under the operation of
“AUTO mode” condition.
4-way valve delays its
switching for 30 – 50 seconds
after compressor has been
turned ON.
0446_M_S
Fig. 17
2-12 Automatic Restart after Power Interruption
This air conditionner has a power failure recovery function.
SM830082
II - 15
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2. Processes and functions
2-13 Electronic Refrigerant Control Valve
❑ This valve allows very precise and smooth control of the amount of refrigerant flow in the
system. Since the valve is operated by a step motor, the control circuits can open or
close it in very exact amounts, so the degree of heating or cooling can be changed by
just a little, or changed very quickly or slowly.
(Completely close …… 0 step)
(Full open................ 480 step)
Min. open
Max. open
Model
HEAT
100 step
90 step
100 step
COOL
100 step
90 step
24 type
36 type
42 type
480 step
100 step
S
❑ Fuzzy Control
Fuzzy Control is a controlling system to control electronic refrigerant control valve using
fuzzy logic. It regulates the functions of heating and cooling, as well as some of the
processes inside the unit, by taking account of many different conditions of temperature,
fan speed, etc. These control circuits work automatically to send just the right amount of
refrigerant through the Electronic Refrigerant Control Valve.
2-14 Compressor Discharge Gas Temperature
2
(A) Cooling
Indoor temp. (°F)
68 – 77
79 – 82
81 – 95
84 – 90
Outdoor temp. (°F)
55 or below
104 – 176
57 – 61
97 – 109
Compressor discharge
gas temp. (°F)
104 – 194
140 – 212
158 – 221
(B) Heating (Except During Defrosting)
Indoor temp. (°F)
64 – 70
72 – 77
79 – 86
Outdoor temp. (°F)
32 or below 34 – 50 32 or below 34 – 50 52 – 70 32 or below 34 – 50 52 – 70
Compressor discharge
gas temp. (°F)
104 – 176 122 – 194 122 – 194 122 – 212 140 – 221 122 – 194 140 – 212 158 – 221
❑
❑
Operate the unit at least 30 minutes to stabilize the discharge temperature.
The above discharge temperature was measured with a 15m tubing length.
The temperature may vary with tubing length.
SM830082
II - 16
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2. Processes and functions
2-15 Compressor Current Detection Circuit
❑ The Compressor Current Detection Circuit detects the compressor current and,
depending on the current range, can stop the compressor motor so it will not be
damaged by overcurrent.
❑ Overcurrent can be caused by several factors, particularly mechanical seizing of the
compressor or liquid backflow. Either of these conditions can hold the compressor
to run, and thus drawing so much current that the motor can burn out.
Comp. Amps.(A)
Locked Comp. Cut-off Range
Is
1.4
+
Overload Protection Range
Normal Operation Range
Is
1.17
+
Is
n
Rated Current
value
0447_M_S
Fig. 18
Rated Current Value
Overload Protection
Locked Compressor Cut-off
Is x 1.4 (A)
Outdoor Model
ls (A)
ls x 1.17 (A)
CH2442
CH3642
CH4242
17.1
20.0
23.9
38.5
48.6
27.5
34.7
32.2
40.6
2
Chart Summary and Explanations
❑
Overload Protection
•
When the detected current is 1.17 – 1.4 times greater than the rated current value (Is) and continues
for 30 seconds, both compressor and outdoor fan stop (Thermostat OFF).
•
After 3-minute pause, if the air conditioner is ready for Thermostat ON, it starts again. However, if the
condition mentioned above repeats twice within 30 minutes, the remote controller displays the alarm
message H01, compressor overload.
❑
❑
Locked Compressor Cut-off
•
When the detected current is 1.4 times greater than the rated current value (ls) and continues for 2
seconds, both compressor and outdoor fan stop (Thermostat OFF).
•
After 3-minute pause, if the air conditioner is ready for Thermostat ON, it starts again. However, if the
condition mentioned above repeats twice, the remote controller displays the alarm message H02,
compressor locked.
Failure of Compressor Current Detection
•
When the Compressor Current Detection Circuit fails to detect the compressor current within 2
seconds after compressor starts, both compressor and outdoor fan stop (Thermostat OFF).
•
After 3-minute pause, if the air conditioner is ready for Thermostat ON, it starts again. However, when
the circuit fails to detect the current twice in a row, the remote controller displays alarm message H03,
Failure of compressor Current Detection.
SM830082
II - 17
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2. Processes and functions
2-16 Electronic Refrigerant Control Valve Control
The circulation volume of the refrigerant is controlled by a pulse type electronic control valve.
When the power is switched ON, the opening degree of the electronic control valve is
controlled between 90 and 480 steps after setting the initial step at the time when the
thermostat is ON.
Contents and Order of control
Cooling
Heating
Start
Start
Discharge gas temperature control
Outdoor unit coil temperature control
Freeze prevention control
Discharge gas temperature control
High load prevention control
Heating start up control
S
Refrigerant flow distribution control
Refrigerant flow distribution control
Discharge gas target temperature
control (Fuzzy control)
Discharge gas target temperature
control (Fuzzy control)
*
*
2
0451_M_S
Repeat control in accordance with the priority order.
*
Even though the operation is performed every 30 seconds, the control of discharge gas
temperature, high load prevention, outdoor unit coil temperature and freeze prevention
activates when it occurs.
(1) Refrigerant flow distribution control
At the control of flexible combination (a plural number of indoor units are set), the opening
degree of the electronic control valve is controlled by the indoor unit coil temperature.
Cooling: indoor unit coil E2 temperature (located at the middle of coil)
Heating: indoor unit coil E1 temperature (located at the outlet of coil)
(2) Fuzzy control (optimal refrigerant flow rate control)
By outputting the fuzzy estimation result corresponding to the fuzzy input variables (the indoor
unit coil temp., the deviation between the actual discharge gas temp. and the target discharge
gas temperature calculated from the outdoor unit coil temperature and the change thereof),
the electronic refrigerant valve is controlled so that the unit can perform its maximum ability in
accordance with the indoor and outdoor temperature conditions at the operation.
SM830082
II - 18
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2. Processes and functions
2-17 Voltage Detection Control
When the power voltage falls below 160 V or rises above 260 V, operation lamp and stand-by
lamp flash alternately to protect the compressor and electrical components.
n
2
SM830082
II - 19
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3. ELECTRICAL DATA
3-1 Indoor Units (Electric Wiring Diagram, Schematic Diagram) .................. III - 2
4-Way Air Discharge Semi-concealed Type .......................................... III - 2
Ceiling Mounted Type............................................................................. III - 4
Concealed Duct Type ............................................................................. III - 6
Concealed Duct High Static Pressure Type ........................................... III - 8
3-2 Outdoor Units (Electric Wiring Diagram, Schematic Diagram) ............... III - 12
3
SM830082
III - 1
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3. Electrical data
3-1 Indoor Units
4-Way Air Discharge Semi-concealed Type : XH2442, XH3642, XH4242
G R N / Y E L
G R N / Y E L
B L K
G R Y
B L K
G R Y
G R N / Y E L
R E D
R E D
G R N / Y E L
G R Y
P N K
G R Y
P N K
B R N
B R N
O R G
G R Y
B L K
Y E L
R E D
O R G
G R Y
G R Y
G R Y
G R Y
W H T
V L T
O R G
Y E L
B L K
B R N
P N K
O R G
Y E L
B L K
B R N
P N K
B L K
B L K
B R N
3
B L K
B L K
O R G
O R G
R E D
R E D
B R N
B R N
B L K
B L K
W H T
W H T
B L K
B L K
B L K
W H T
B L U
P N K
G R N / Y E L
B R N
R E D
SM830082
III - 2
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3. Electrical data
4-Way Air Discharge Semi-concealed Type : XH2442, XH3642, XH4242
• Schematic Diagram
CR
CN2
1
3
1
3
1
2
3
4
5
6
RC
WL
TH
RCU
T10
1
2
3
4
F1(5A)
T20
5P-1
5P-2
1
1
TR1
1
2
3
4
1
2
3
4
5
6
1X
8
T6
MOV
VCC
5
2X
3X
RY2
RY1
RY4
49FI
LSW
1
3
1
2
LS
1
3
9
3
RS2
FS
1
2
3
PNL
1
3
DP
LM
26H
FM
Room Thermistor
FS
1
2
1
2
1
2
1
3
1
3
4
5
5
7
1
1
1
1
Room
Temp
TH1
E1
Indoor Coil
Indoor Coil
Indoor Coil
Coil
E1
TH2
E2
3
6
7
Coil
E2
LL
L
H
HH HT
TH3
E3
Coil
E3
TH4
FMI
1X
DP
LM
2
2X
3X
1
2
RY1
RY4
RC1
RY2
1
2
OC
3
9
3
3
3
DC12V
5P-
U2
5P-
U1
F2(5A)
3
To Outdoor Unit
Symbols
Description
Symbols
Description
FMI
MOV
49FI
RC1
TR1
DP
Indoor Fan Motor
1X~3X
RY1, 2, 3
CR
Auxiliary Relay
Motor Operated Valve
Indoor Motor Thermal Protector
Running Capacitor
Power Transformer
Drain Pump
Indoor Controller
Limit Switch
LSW
LM
Auto Louver Motor
(RCU)
Remote Control Unit
(Optional Parts)
FS
Float Switch
TH1
TH2
TH3
TH4
F1, 2
Room Thermistor
(TH)
Room Thermistor
Terminal Plate
Connector
Thermistor (Indoor Coil E1)
Thermistor (Indoor Coil E2)
Thermistor (Indoor Coil E3)
Fuse
Terminal
S 854-2-5268-930-00-1 (X)
SM830082
III - 3
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3. Electrical data
Ceiling Mounted Type : TH2442, TH3642, TH4242
G R Y
B L K
Y E L
R E D
O R G
G R N / Y E L
2 P ( W H T )
C o n n e c t e r
W H T
B L U
G R Y
P N K
G R N / Y E L
B R N
B R N
B L K
B L K
B L K
B L K
B L K
B L K
G R Y
G R Y
G R Y
G R Y
W H T
V L T
B L K
B L K
O R G
Y E L
B L K
B R N
P N K
O R G
Y E L
B L K
B R N
P N K
B R N
2 P ( B L K )
C o n n e c t e r
B L K
B L K
B L K
3
O R G
O R G
R E D
R E D
B R N
B R N
W H T
W H T
O R G
B L K
W H T
B L U
P N K
T n a l
E a
G R N / Y E L
B R N
R E D
SM830082
III - 4
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3. Electrical data
Ceiling Mounted Type : TH2442, TH3642, TH4242
• Schematic Diagram
CR
CN2
1
1
3
1
2
3
4
5
6
RC
WL
3
TH
RCU
T10
1
2
3
4
F1(5A)
T20
5P-1
5P-2
1
1
SUP
TR1
1
2
3
4
5
6
1X
8
1
2
3
4
VCC
2X
RY1
RY2
RY4
49FI
T6
LS
MOV
5
1
3
9
3
RS2
FS
3X
1
3
LSW
1
2
1
3
LM
DP
26H
LL
1
L
H
HH
Room Thermistor
1
2
1
2
1
2
1
3
3
5
5
7
1
1
1
1
Room
Temp
1
TH1
E1
Indoor Coil
Indoor Coil
Indoor Coil
PNL
2
3
Coil
E1
TH2
E2
3
4
6
7
Coil
E2
LL
L
H
HH HT
TH3
E3
Coil
E3
TH4
FMI
1X
LM
DP
2
2X
3X
1
2
RY1
RY4
RC1
RY2
1
2
OC
3
9
3
3
3
DC12V
5P-
U2
5P-
U1
F2 (5A)
3
To Outdoor Unit
Symbols
Description
Symbols
Description
FMI
Indoor Fan Motor
TH2
TH3
TH4
CR
Thermistor (Indoor Coil E1)
Thermistor (Indoor Coil E2)
Thermistor (Indoor Coil E3)
Indoor Controller
49FI
RC1
F1, 2
LM
Indoor Motor Thermal Protector
Running Capacitor
Fuse
Auto Louver Motor
Power Transformer
Auxiliary Relay
(RCU)
Remote Control Unit
(Optional Parts)
TR1
1X~3X
RY1, 2, 4
MOV
FS
(TH)
Room Thermistor
Terminal Plate
Connector
Auxiliary Relay
Motor Operated Valve
Float Switch
Terminal
LSW
TH1
Limit Switch
Room Thermistor
S 854-2-5268-923-00-1 (T)
SM830082
III - 5
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3. Electrical data
Concealed Duct Type : UH2442, UH3642
G R N / Y E L
R E D
R E D
B L K
B L K
G R Y
B L K
Y E L
R E D
O R G
B L K
B L K
B L K
B L K
B L K
B L K
B L K
B L K
9 P ( W H T )
C o n n e c t e r
G R Y
G R Y
G R Y
G R Y
W H T
V L T
O R G
Y E L
B L K
B R N
P N K
V L T
O R G
Y E L
B L K
3
O R G
P N K
B R N
B R N
G R N
O R G
O R G
R E D
R E D
B R N
B R N
W H T
W H T
2 P ( B L U )
C o n n e c t e r
B L K
W H T
B L U
P N K
G R N / Y E L
W H T
R E D
SM830082
III - 6
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3. Electrical data
Concealed Duct Type : UH2442, UH3642
• Schematic Diagram
CR
CN2
1
1
3
1
2
3
4
5
6
RC
WL
2
TH
RCU
T10
Terminal
Plate (5P)
1
2
3
4
F1(5A)
T20
-1
-2
1
1
RS1
TR1
8
1X
1
2
3
4
5
6
1
2
3
4
VCC
RS2
2X
3X
RY2
49FI
T6
FS
MOV
5
1
3
9
3
1
3
FS
DP
FM
1
2
1
2
1
2
1
3
1
3
4
5
5
7
1
Room
Temp
TH1
TH2
TH3
TH4
Coil
E1
3
6
7
1
2
3
Coil
E2
LL
L
H
HH HT
PNL
Coil
E3
FMI
DP
1X
1
2
2X
RC1
F2(5A)
3X
RY2
1
2
OC
3
9
3
DC12V
5P-
U2
5P-
U1
3
To Outdoor Unit
Symbols
Description
Symbols
Description
FMI
Indoor Fan Motor
CR
Indoor Controller
49FI
RC1
F1, 2
DP
Indoor Motor Thermal Protector
Running Capacitor
Fuse
(RCU)
Remote Control Unit
(Optional Parts)
(TH)
Room Thermistor
Terminal Plate
Connector
Drain Pump
FS
Float Switch
TR1
1X~3X
RY2
MOV
TH1
TH2
TH3
TH4
Power Transformer
Auxiliary Relay
Terminal
Auxiliary Relay
Motor Operated Valve
Room Thermistor
Thermistor (Indoor Coil E1)
Thermistor (Indoor Coil E2)
Thermistor (Indoor Coil E3)
S 854-2-5268-940-00-0 (UH1242)
SM830082
III - 7
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3. Electrical data
Wall Mounted Type : KH2442
G R N / Y E L
2 P ( W H T )
C o n n e c t e r
B L K
W H T
B L K
W H T
G R Y
B L K
Y E L
R E D
O R G
B L K
B L K
B L K
B L K
B L K
B L K
B L K
B L K
R E D
G R Y
W H T
V L T
O R G
Y E L
O R G
B L K
3
P N K
B R N
G R N
O R G
O R G
R E D
R E D
B R N
B R N
W H T
W H T
2 P ( B L U )
C o n n e c t e r
B L K
W H T
B L U
P N K
W H T
R E D
SM830082
III - 8
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3. Electrical data
Wall Mounted Type : KH2442
• Schematic Diagram
CR
CN2
1
1
3
1
2
3
4
5
6
RC
WL
2
TH
RCU
T10
Terminal
Plate (4P)
1
2
3
4
F1(5A)
T20
-1
-2
1
1
RS1
TR1
1X
1
2
3
4
5
6
1
2
3
4
1
2
3
4
VCC
2X
3X
RY1
T6
MOV
5
5
1
3
RS2
FS
LM
FM
1
3
1
2
1
2
1
2
1
3
1
3
4
5
5
7
1
1
Room
Temp
3
TH1
TH2
TH3
TH4
Coil
E1
3
6
1
2
3
Coil
E2
LL
L
H
HH
PNL
Coil
E3
FMI
LM
1X
2X
2
3
RC1
F2(5A)
3X
RY1
1
2
OC
3
9
DC12V
4P-
U2
4P-
U1
3
To Outdoor Unit
Symbols
Description
Symbols
Description
FMI
Indoor Fan Motor
CR
Indoor Controller
49FI
RC1
F1, 2
LM
Indoor Motor Thermal Protector
Running Capacitor
Fuse
(RCU)
Remote Control Unit
(Optional Parts)
(TH)
Room Thermistor
Terminal Plate
Connector
Auto Louver Motor
Power Transformer
Auxiliary Relay
TR1
1X~3X
RY1
MOV
TH1
TH2
TH3
TH4
Terminal
Auxiliary Relay
Motor Operated Valve
Room Thermistor
Thermistor (Indoor Coil E1)
Thermistor (Indoor Coil E2)
Thermistor (Indoor Coil E3)
S 854-2-5268-935-00-0 (KH2442)
SM830082
III - 9
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3. Electrical data
Wall Mounted Type : KH3642
G R N / Y E L
B L K
W H T
5 P ( W H T )
C o n n e c t e r
G R Y
B L K
Y E L
R E D
O R G
G R Y
B L K
Y E L
R E D
O R G
B L K
B L K
B L K
B L K
B L K
B L K
B L K
B L K
8 P ( W H T )
C o n n e c t e r
R E D
G R Y
W H T
V L T
G R Y
W H T
V L T
O R G
O R G
Y E L
Y E L
B R N
P N K
O R G
B L K
3
P N K
B R N
G R N
O R G
O R G
R E D
R E D
B R N
B R N
W H T
W H T
2 P ( B L U )
C o n n e c t e r
B L K
W H T
B L U
P N K
W H T
R E D
SM830082
III - 10
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3. Electrical data
Wall Mounted Type : KH3642
• Schematic Diagram
CR
CN2
1
1
3
1
2
3
4
5
6
RC
WL
2
TH
RCU
T10
Terminal
Plate (4P)
1
2
3
4
F1(5A)
T20
-1
-2
1
1
RS1
TR1
1X
1
2
3
4
5
6
1
2
3
4
1
2
3
4
VCC
2X
3X
RY1
T6
MOV
5
5
1
3
RS2
FS
LM
FM
1
3
1
2
1
2
1
2
1
3
1
3
4
5
5
7
1
Room
Temp
3
TH1
TH2
TH3
TH4
Coil
E1
3
6
1
2
3
Coil
E2
LL
L
H
HH
PNL
Coil
E3
FMI
LM
1X
1
2
7
9
2X
RC1
F2(5A)
3X
RY1
1
2
OC
3
3
DC12V
4P-
U2
4P-
U1
3
To Outdoor Unit
Symbols
Description
Symbols
Description
FMI
Indoor Fan Motor
CR
Indoor Controller
49FI
RC1
F1, 2
LM
Indoor Motor Thermal Protector
Running Capacitor
Fuse
(RCU)
Remote Control Unit
(Optional Parts)
(TH)
Room Thermistor
Terminal Plate
Connector
Auto Louver Motor
Power Transformer
Auxiliary Relay
TR1
1X~3X
RY1
MOV
TH1
TH2
TH3
TH4
Terminal
Auxiliary Relay
Motor Operated Valve
Room Thermistor
Thermistor (Indoor Coil E1)
Thermistor (Indoor Coil E2)
Thermistor (Indoor Coil E3)
S 854-2-5268-936-00-0 (KH3642)
SM830082
III - 11
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3. Electrical data
3-2 Outdoor Units
1 CH2442
B R N
B R N
W H T
W H T
G R Y
R E D
W H T
R E D
R E D
R E D
B R N
Y E L
V L T
Y E L
V L T
W H T
B L K
G R Y
B R N
W H T
G R Y
G R Y
B R N
B R N
P N K
P N K
3
B R N
Y E L
W H T
W H T
W H T
B L K
W H T
R E D
B L K
R E D
SM830082
III - 12
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3. Electrical data
3-2 Outdoor Units
1 CH2442
• Schematic Diagram
Terminal
Plate (5P)
-1
CR
63PH
1
2P-1
2P-2
1
F1(5A)
RY1 RY2
-2
1Y
1Y
RY3
1
2
1
3
CN004
AC 230V
RS
RY5
L
63PH
-G
RY4
TR
H
3
M
20S 52C
-L1
-L2
3
7
5
3
3
2
1
VCC
AC 14V
TH6
TH7
TH8
49
FO
1
2
Outdoor
Coil C1
CT
RY1
20S
52C
FM1
FM2
52C
Outdoor
Coil C2
1
2
3
4
RY2
RY3
RY4
RY5
1
5
6
7
H
M
L
1
2
Discharge
gas
49FO
20S
CH
2
1Y
52C
FMO
52C
PTC
RC1
1
2
1
3
9
RC2
CT1
49
C
DC12V
N1
R
C
S
1
1
1
CM
3
F2(5A)
Symbols
Description
Symbols
Description
CM
Compressor Motor
Outdoor Fan Motor
CR
RY1~RY5
Outdoor Controller
Auxiliary Relay
Auxiliary Relay
Terminal Plate
Terminal
3
FMO
52C
49FO
63PH
CT
Compressor Motor Magnetic Contactor 1Y
Outdoor Fan Motor Thermal Protector
High Pressure Switch
Current Transmitter
Connector
RC1,2
TR
Running Capacitor
Power Transformer
CH
Crank Case Heater
20S
Four Way Valve
F1,2
TH6
TH7
TH8
PTC
Fuse
Thermistor (Outdoor Coil C1)
Thermistor (Outdoor Coil C2)
Thermistor (Discharge Gas)
PTC Thermistor
S 854-2-5268-945-00-0 (CH2442-S)
SM830082
III - 13
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3. Electrical data
3-2 Outdoor Units
2 CH3642
B R N
B R N
W H T
W H T
G R Y
R E D
W H T
R E D
R E D
R E D
Y E L
V L T
W H T
B R N
Y E L
V L T
Y E L
V L T
W H T
G R Y
W H T
G R Y
G R Y
B R N
B R N
P N K
B R N
P N K
3
Y E L
V L T
W H T
Y E L
V L T
W H T
G R Y
G R Y
B R N
G R Y
G R Y
B R N
B R N
P N K
P N K
B R N
Y E L
W H T
W H T
W H T
B L K
W H T
R E D
B L K
R E D
SM830082
III - 14
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3. Electrical data
3-2 Outdoor Units
2 CH3642
• Schematic Diagram
Terminal
Plate (5P)
-1
CR
63PH
1
2P-1
2P-2
1
F1(5A)
RY1 RY2
-2
1Y
1Y
RY3
1
2
1
3
CN004
AC 230V
RS
RY5
L
63PH
-G
RY4
TR
H
3
M
20S 52C
-L1
-L2
3
7
5
3
3
2
1
VCC
AC 14V
3
TH6
TH7
TH8
49
FO
1
2
Outdoor
Coil C1
49FO1
CT
RY1
20S
52C
FM1
FM2
52C
Outdoor
Coil C2
1
2
4
3
RY2
RY3
RY4
RY5
1
5
6
7
5
6
7
H
M
L
H
M
L
1
2
Discharge
gas
20S
CH
2
1Y
52C
FMO1 FMO2
49FO2
52C
PTC
RC1
4
1
2
1
2
1
3
9
RC2
RC3
CT1
49
C
DC12V
N1
R
C
S
1
1
1
CM
3
F2(5A)
Symbols
Description
Symbols
Description
CM
Compressor Motor
Outdoor Fan Motor
CR
RY1~RY5
Outdoor Controller
Auxiliary Relay
Auxiliary Relay
Terminal Plate
Terminal
3
FMO1,2
52C
Compressor Motor Magnetic Contactor 1Y
Outdoor Fan Motor Thermal Protector
High Pressure Switch
Current Transmitter
49FO1,2
63PH
CT
Connector
RC1,2,3
TR
Running Capacitor
Power Transformer
CH
Crank Case Heater
20S
Four Way Valve
F1,2
Fuse
TH6
Thermistor (Outdoor Coil C1)
Thermistor (Outdoor Coil C2)
Thermistor (Discharge Gas)
PTC Thermistor
TH7
TH8
PTC
S 854-2-5268-946-00-0 (CH3462-S)
SM830082
III - 15
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3. Electrical data
3-2 Outdoor Units
3 CH4242
B R N
B R N
W H T
W H T
G R Y
R E D
W H T
R E D
R E D
R E D
Y E L
V L T
W H T
B R N
Y E L
V L T
Y E L
V L T
W H T
G R Y
W H T
G R Y
G R Y
B R N
B R N
P N K
B R N
P N K
3
Y E L
V L T
W H T
Y E L
V L T
W H T
G R Y
G R Y
B R N
G R Y
G R Y
B R N
B R N
P N K
P N K
B R N
Y E L
W H T
W H T
W H T
B L K
W H T
R E D
B L K
R E D
SM830082
III - 16
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3. Electrical data
3-2 Outdoor Units
3 CH4242
• Schematic Diagram
Terminal
Plate (5P)
-1
CR
63PH
1
2P-1
2P-2
1
F1(5A)
RY1 RY2
-2
1Y
1Y
RY3
1
2
1
3
CN004
AC 230V
RS
RY5
L
63PH
-G
RY4
TR
H
3
M
20S 52C
-L1
-L2
3
7
5
3
3
2
1
VCC
AC 14V
3
TH6
TH7
TH8
49
FO
1
2
Outdoor
Coil C1
49FO1
CT
RY1
20S
52C
FM1
FM2
52C
Outdoor
Coil C2
1
2
4
3
RY2
RY3
RY4
RY5
1
5
6
7
5
6
7
H
M
L
H
M
L
1
2
Discharge
gas
20S
CH
2
1Y
52C
FMO1 FMO2
49FO2
52C
4
1
2
1
2
1
3
9
RC2
RC3
RC1
CT1
49
C
DC12V
N1
R
C
S
1
1
1
CM
3
F2(5A)
Symbols
Description
Symbols
Description
CM
Compressor Motor
Outdoor Fan Motor
CR
RY1~RY5
Outdoor Controller
Auxiliary Relay
Auxiliary Relay
Terminal Plate
Terminal
3
FMO1,2
52C
Compressor Motor Magnetic Contactor 1Y
Outdoor Fan Motor Thermal Protector
High Pressure Switch
49FO1,2
63PH
CT
Current Transmitter
Connector
RC1,2,3
TR
Running Capacitor
Power Transformer
CH
Crank Case Heater
20S
Four Way Valve
F1,2
Fuse
TH6
Thermistor (Outdoor Coil C1)
Thermistor (Outdoor Coil C2)
Thermistor (Discharge Gas)
TH7
TH8
S 854-2-5268-948-00-0 (CH4242-S)
SM830082
III - 17
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4. SERVICE PROCEDURES
4-1 Troubleshooting ...................................................................................... IV - 2
(1) Check before and after Troubleshooting ......................................... IV - 3
(2) General Troubleshooting Flow Chart: Diagnosis and Remedy ....... IV - 4
(3) Meanings of alarm messages.......................................................... IV - 6
(4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y ......................... IV - 8
(5) Symptoms and parts to inspect ....................................................... IV - 9
(6) Procedures When a Specific Component Does Not Work .............. IV - 19
(7) Service Functions of Remote Controller .......................................... IV - 21
n
4-2 Checking the Electrical Components ...................................................... IV - 30
(1) Measurement of Insulation Resistance ........................................... IV - 30
(2) Checking the Protective Devices..................................................... IV - 31
(3) Checking the Electrical Parts........................................................... IV - 32
(4) Thermistor Characteristic Curve ...................................................... IV - 35
(5) PCB Setting ..................................................................................... IV - 36
(6) R.C Address Setting Method ........................................................... IV - 37
(7) Automatic Address Setting Method ................................................. IV - 38
(8) Displaying Indoor / Outdoor Unit Combination Numbers................. IV - 38
(9) Items to Check Prior to Test Run .................................................... IV - 39
(10) Test Run .......................................................................................... IV - 40
(11) PCBs and Their Location................................................................. IV - 42
(12) Checking procedure for each PC Board.......................................... IV - 44
(13) TMX60 Pins ..................................................................................... IV - 45
4
SM830082
IV - 1
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4. Service procedures
4-1 Troubleshooting
This section explains:
❑ What the LED codes mean
❑ What the remote control unit display screen messages mean
❑ How to use the flow charts to find and solve problems
❑
How to use the self-diagnostic tests to find parts that aren’t working right
S
This unit is made to be trouble free, and not need much service. However, with time, moving
parts wear out, electronic components break down, and sometimes misuse damages the unit.
The purpose of this section is to help you when the unit is not working properly. Sometimes
your experience will tell you right away where to look for a problem, and when you find it you
will know how to fix it at once.
Often, however, all you have is a symptom like “poor cooling” or “outside fan doesn’t come
on.” Now you must find out the cause of the problem, and then how to fix it. This section
provides several ways to help you go from the symptom to the cause and then the solution.
The first chart, General Troubleshooting Flow Chart is divided into two sections: Poor
heating and Poor Cooling. Under each heading you will find the main things that can go
wrong and cause either of these problems. Sometimes you can start with this chart and find
the problem right away, but often you will come here for more suggestions after you have
looked at the error code on the remote control unit display. This chart gives you the "big
picture" of problems and solutions.
The other main tool we explain here is the use of the Alarm Messages. When a certain part
fails or a safety device has shut the unit down, any alpha-numeric codes appears on the
display to guide you to the problem.
By understanding the code you can often go right to the problem area and then, with this
manual and your knowledge of air conditioning, find the solution.
4
SM830082
IV - 2
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4. Service procedures
(1) Check before and after Troubleshooting
Many problems may happen because of wiring or power supply problems, so you should
check these areas first. Problems here can cause false results in some of the other tests, and
so should be corrected first.
1. Check power supply wiring
❑ Check the power supply wires are correctly connected between terminal
No. 1 & 2 on the 5P terminal plates in the indoor unit and the outdoor unit.
2. Check inter-unit wiring
n
❑ Check that inter-unit control wiring (DC low voltage) is correctly connected between the
indoor unit and outdoor unit.
Power Supply: 60 Hz, single-phase, 230/208 V
Indoor Unit
Outdoor Unit
B
R.C. Address on the PCB: 0 (S2, BLK)
(0: Factory shipped state)
1
2
1
2
Inter-unit
0
power wiring
Single phase
230/208V
4
G
G
Ground
Inter-unit
control wiring
(Low voltage)
U1
U2
U1
L1
U2
L1
Power supply
Single phase
230/208V
C
L2
L2
G
1
2
1
2
1
2
Ground
D
A
Remote controller
(Option)
*Remote controller wirings are wire joint connection.
2085_M_I
Fig. IV-1
3. Check power supply
❑ Check that voltage is within the specified range (±10% of the rating).
❑ Check that power is being supplied.
If the following troubleshooting must be done with power being supplied, be
careful not to touch any uninsulated live part that can cause ELECTRIC
SHOCK.
4. Check the lead wires and connectors in indoor and outdoor units.
❑ Check that the sheath of lead wires is not damaged.
❑ Check that the lead wires are firmly connected at the terminal plate.
❑ Check that the wiring is correct.
SM830082
IV - 3
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4. Service procedures
(2) General Troubleshooting Flow Chart: Diagnosis and Remedy
When you have found a major problem, such as refrigerant not flowing in the system or
reduced air circulation, come to this section and find the box listing the problem. Connected
to the box are the main causes of the problem and their remedies. To find out which
malfunction is happening in your case, check the remote controller for an Alarm Message,
and follow the steps in section 3).
(A) Cooling
a. Cooling
S
Poor cooling
Is setting temp.
Change the setting temp.
suitable ?
Is cooling load
too heavy ?
Review cooling load
estimate.
4
Refrigerant flow
failure
4-way valve is
defective.
Replace the 4-way valve.
Charge refrigerant gas.
Refrigerant
shortage
Electronic refrigerant
Replace the valve.
control valve is defective.
Compressor is defective.
Replace the compressor.
Open the valves fully.
Service valves are not
fully open.
Not enough air
circulation
Air filter
Clean the filter.
is clogged.
Is fan speed
set to LOW ?
Set the fan speed to
either MEDIUM or HIGH.
Refrigerant tubes between
indoor and outdoor units
are not insulated.
Insulate wide and narrow
tubes separately.
0458_M_I
SM830082
IV - 4
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4. Service procedures
(B) Heating
b. Heating
Poor heating
Is setting temp.
suitable ?
Change the setting temp.
Is heating load
too large ?
Review heating load
estimate.
n
Refrigerant flow
failure
4-way valve is
defective.
Replace the valve.
Refrigerant
shortage
Charge with
refrigerant.
Electronic refrigerant
Replace the valve.
4
control valve is defective.
Compressor is defective.
Replace the compressor.
Service valves are not
fully open.
Open the valves fully.
Clean the filter.
Not enough
Air filter
air circulation
is clogged.
Is fan speed
set to LOW ?
Set the fan speed to
either MEDIUM or HIGH.
Refrigerant tubes between
indoor and outdoor units
are not insulated.
Insulate wide and narrow
tubes separately.
Cold air is
4-way valve is
defective.
Replace the valve.
discharged.
Cold draft prevention
is not working.
“ STANDBY ” is
displayed.
Replace indoor
P.C.B. Ass'y.
Indoor coil sensor E2 is
defective.
Replace the sensor.
0459_M_I
SM830082
IV - 5
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4. Service procedures
(3) Meanings of alarm messages
Alarm
message
Possible Cause of Malfunction
Remote controller is detecting
error signal from indoor unit.
E1
E2
• Serial
commu-
nication
errors
• Indoor unit is detecting error signal from the remote controller.
(No serial communications signal)
E3
• Mis-setting
Indoor unit is detecting error
signal from outdoor unit.
E4
E5
Outdoor unit is detecting error
signal from indoor unit.
E6
S
Indoor unit is not working
correctly.
Outdoor unit is transmitting error
signal.
E7
Improper setting of indoor unit or
remote controller.
E8
E9
E12
E14
E15
When using group control, main indoor unit address setting is duplicated.
(For single heat pump type.)
4
Error in Auto. address setting.
(No. or capacity of judged indoor unit is small.)
Error in Auto. address setting.
E16
E18
(No. or capacity of judged indoor unit is large.)
Indoor unit is detecting error signal from another indoor unit.
Activation of
protective
device
Protective device in indoor unit • Thermal protector in indoor fan motor is activated.
is activated.
P1
P2
Protective device in outdoor
unit is activated.
• Thermal protector in outdoor fan motor is activated.
• Comp. thermal protector is activated.
Incorrect discharge gas temp. of comp.
High-pressure switch is activated.
P3
P4
Incorrect power supply voltage . Negative phase, defective
phase or voltage drop.
P5
Incorrect discharge gas temp. of comp.
P17
P9
Protective device in indoor unit Improper wiring connections of ceiling panel.
is activated.
Float switch is activated.
P10
NOTE
● RCU : Remote Control Unit (remote controller)
● R.C. : Refrigerant Circuit
● comp. : Compressor
● temp. : Temperature
● PCB : Printed Circuit Board
SM830082
IV - 6
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4. Service procedures
Alarm
message
Possible Cause of Malfunction
Thermistor
failure
F1
F2
F3
Indoor thermistor is either open Indoor coil temp. (E1 = TH1) cannot be detected.
or damaged.
Indoor coil temp. (E2 = TH2) cannot be detected.
Indoor coil temp. (E3 = TH3) cannot be detected.
Indoor room (air-intake) temp. can not be detected.
Discharge gas temp. (comp. = TH0A) cannot be detected.
Outdoor coil gas temp. (C2 = TH0C) cannot be detected.
Outdoor coil liquid temp. (C1 = TH0D) cannot be detected.
F10
F4
Outdoor thermistor is either
open or damaged.
F25
F7
EEPROM (ICB of PCB) failure
F29
H1
n
Fault with
comp. and its
circuit
Comp. motor is overloaded.
Protective device for comp. is
activated.
Comp. motor is locked.
H2
Current of comp. cannot be detected when it is turned on.
Current of comp. is detected when it is not operated.
Comp. contactor (Mg SW) is chattering.
H3
F27
H18
Alarm
message
Possible cause of Malfunction
Model setting of indoor unit is not matching the outdoor unit.
L2
4
When using group control, main indoor unit address setting is duplicated.
(Judging by indoor unit.)
L3
Outdoor unit address (R.C. No.) is duplicated.
L4
L5
L6
Priority setting of indoor unit is duplicated.
—
Improper wiring between indoor units.
L7
(There is group connection wiring in case of individual control.)
L9
Capacity code of indoor unit is not set.
Improper wiring of group control wiring.
L11
Alarm
message
Possible Cause of Malfunction (The following messages are displayed only for the system controller.)
• Indoor or outdoor unit is not working correctly.
• Control lines between indoor unit, outdoor unit, and system
controller are not wired correctly.
• Serial
commu-
nication
errors
System controller is transmitting
incorrect signal.
C05
C06
P30
System controller is detecting
incorrect signal.
• Same as for C05, above.
• Connector CN1 is not connected correctly.
• Mis-setting
Protective device of the sub-
indoor unit is activated in group connect wired remote controller with the indoor unit temporarily
contorl.
When using wireless remote controller or system controller,
Activation of
protective
device
to check the alarm message in detail.
NOTE
● R.C. : Refrigerant Circuit
● comp. : Compressor
● temp. : Temperature
● PCB : Printed Circuit Board
SM830082
IV - 7
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4. Service procedures
(4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y
If something goes wrong with the outdoor unit, LED lamps on the outdoor P.C.B. Ass’y light
up to show the cause of the trouble, in addition to the Alarm message on the remote
controller.
LED 2 on LED 1 on Remote
Possible cause of trouble
P.C. board P.C. board controller
Normal
ⅷ
ⅷ
ⅷ
⅜
No message
E06, E07, L04
Outdoor unit serial communication signal is abnormal.
Outdoor unit address is duplicated.
Other outdoor units are performing auto address and
detecting refrigerant shortage.
S
ⅷ
⅜
⅜
*
No message
P02
FMo • CM thermal protection is in operation.
Power supply voltage is abnormal.
High voltage SW activates
ⅷ
⅜
P04, P05
Negative phase protector activates.
Sensor is abnormal. (Open or short)
Abnormal compressor current value is detected.
Auto address failure
⅜
*
F04~F09
H01, H02
4
*
ⅷ
*
*
E15, E16
Flash at the same time
*
*
“SETTING”
flashes.
Auto address is in operation.
Flash alternately
NOTE ⅷ: LED lamps OFF ⅜: LED lamps ON (lights up) *: LED lamps ON (blink)
Outdoor control PCB
LED2 (D012)
LED1 (D011)
Fig. IV-2
2177_C_I
CAUTION
* REFRIGERANT SHORTAGE
Note particularly that a shortage of refrigerant is only shown by the outdoor P.C.B. Ass’y
LEDs and the Alarm Message does not appear on the Indoor Remote Controller . The
compressor keeps running even when the refrigerant is less, so when you find the LED
indication on the outdoor P.C.B. Ass’y, stop the air conditioner immediately to avoid the
compressor damage.
SM830082
IV - 8
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4. Service procedures
(5) Symptoms and parts to inspect
1) Symptom: LCD on the remote controller does not display and remote controller does not
operate.
Start
Is the LED (D80) on
the indoor unit PCB lit?
Repair the
remote
Yes
controller
wiring.
No
n
No
Yes
Is there 230-208 V AC
between R and S of
the indoor PCB?
Miswiring of
power supply
wires and
Is there 230-208 V AC
between U1 and U2
of the terminal plate?
indoor/outdoor
control lines
No
Yes
4
Check and repair the
power breaker etc.
Correct the
wiring. Remove the
socket connected to
the OC plug on the
PCB and connect to
the EMG plug instead.
No
No
Are the connections
for the 4P connector
for the indoor unit’s
PCB power trans-
former good?
Correct the
connections
Has the indoor
unit PCB fuse blown?
Yes
Yes
No
No
Replace the
Is the primary
side of the indoor
power transformer
shorted?
Is there 15 V AC
Replace the
indoor unit power
transformer.
Is the 230-208 V AC
circuit shorted?
No
between 1 and 2
of the 4P connector
for the indoor unit’s
power transformer?
indoor unit PCB.
Yes
Yes
Yes
Replace the
indoor unit PCB.
Replace the indoor unit’s
power transformer.
Replace or repair.
2095_THS_I
SM830082
IV - 9
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4. Service procedures
2) Symptom: LCD on the remote controller displays “CHECK E01”. (Unusual
communication between remote controller and indoor unit.)
Start
Remote controller judges itself
with self-diagnostic functions
NG
Replace the remote controller.
OK
S
Is there an open or a contact
defect in the No. 1 line of the
remote controller?
Yes
Correct the wiring.
No
Is there 230 -208 V AC between
U1 and U2 of terminal plate?
Mis-wiring between the power
supply line and indoor/ outdoor
unit operation lines.
Correct the wiring, and pull out the
socket connected to the OC plug
to replace with the EMG plug.
Yes
Yes
Yes
No
4
Is the indoor unit PCB’s inspection
pin shorted?
Open the inspection pin.
No
Replace the indoor unit PCB
.
2096_THS_I
3) Symptom: LCD on the remote controller displays “CHECK E02”. (Unusual
communication between remote controller and indoor unit)
Start
NG
Remote controller judges itself with
self-diagnostic functions.
Replace the remote controller.
OK
Replace the indoor unit PCB.
2097_M_I
SM830082
IV - 10
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4. Service procedures
4) Symptom: LCD on the remote controller is displaying “CHECK E04”. (Unusual
communication between the indoor and outdoor units.)
Start
No
No
Cut the breaker and remove the
indoor/outdoor unit control lines
connected to U1 and U2 of the
indoor unit 8P terminal plate.
After shorting the test pin (CN2)
on the indoor unit PCB, switch the
breaker on. Does the LED
Is the contact good at the 2P
connector for indoor serial
communications on the outdoor
unit PCB?
Correct the connections.
Yes
n
(red) on the PCB light up?
Replace the indoor unit PCB.
Yes
No
No
Is the contact good at the 2P
connector for indoor serial
communications on the outdoor
unit PCB?
Correct the connections.
Cut the breaker, remove the
indoor/outdoor unit control
lines connected to U1 and U2 of
the outdoor unit 8P terminal plate.
After shorting the test pin (CN11) on
the outdoor unit PCB, switch the
breaker on. Do the LEDs (red, × 2)
on the PCB flash?
4
Yes
Replace the indoor unit PCB.
Indoor/outdoor unit
control lines are cut off
Correct the wiring.
0335_M_I
5) Symptom: LCD on the remote controller is displaying “CHECK E05”. (Unusual
communication between the indoor and outdoor units)
Start
Indoor unit PCB transmission/
reception circuit defect
Replace the indoor unit PCB.
0336_M_I
SM830082
IV - 11
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4. Service procedures
6) Symptom: LCD on the remote controller is displaying “CHECK E06”. (Unusual
communication between the indoor and outdoor units)
Start
Yes
Correct the setting.
Correct wiring.
Is the setting for the indoor address
on the indoor unit PCB inappropriate?
No
Yes
Is there a cut line or contact
defect between an indoor and
outdoor unit’s control line?
S
No
0337_M_I
Influenced by external noise
7) Symptom: LCD on the remote controller is displaying “CHECK E08”. (Duplicate indoor
unit address setting)
4
Start
Yes
Is the setting for the non-volatile
memory IC on the indoor unit PCB
inappropriate? If the setting is
appropriate, “F29” is displayed.
(Are there two units with the same
address?)
Correct the setting.
No
Influenced by external noise
0338_M_I
8) Symptom: LCD on the remote controller is displaying “CHECK E09”. (Duplicate setting
of RCU address switch of remote controllers)
Start
*
Yes
Are there two remote controllers
(master-slave) installed with both
remote controllers set as masters?
Correct the setting.
No
Replace the remote controller.
0339_M_I
SM830082
IV - 12
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4. Service procedures
9) Symptom: LCD on the remote controller displays “CHECK P01”. (Indoor fan protection
thermostat operation warning)
Start
Yes
No
Correct the connection
Is there 230-208 V AC between T20-1
and T20-3 on the indoor unit PCB?
Is the indoor fan wire winding
protection thermostat (49FI) off?
Yes
Yes
No
n
Replace the indoor unit PCB.
Replace the indoor fan.
2098_THS_I
4
SM830082
IV - 13
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4. Service procedures
10) Symptom: LCD on the remote controller displays “CHECK P02”. (Compressor / outdoor
fan protection thermostat operation warning / power supply voltage
abnormality)
Start
No
Is the power supply to the outdoor
unit normal?
Check the power breaker etc.
and repair.
(Voltage / defective phase?)
S
Yes
Yes
Yes
Yes
Is the fuse on the outdoor unit
PCB blown (F1 and F2)?
Replace the fuse.
No
Is the high pressure switch
(63 PH) off?
Replace the outdoor unit PCB.
Replace the outdoor unit PCB.
4
No
Is there 230-208 V AC between
CN19-9 and CN19-7 on the
outdoor unit PCB?
No
No
Is the outdoor fan wire winding
protection thermostat (49FO) off?
Yes
• No refrigerant
• High load
• 4-way valve defect
• Clogged refrigerant circuit
• Electronic refrigerant control valve
defect (indoor unit)
Replace the outdoor fan.
Yes
Is there connector contact defect?
Correct the connection
No
Replace the outdoor unit PCB.
2099_THS_I
SM830082
IV - 14
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4. Service procedures
11) Symptoms: LCD on the remote controller displays “CHECK P03”.
(Alarm for unusual discharge temp. of compressor)
Start
Unusual discharge gas temperature
• Refrigerant shortage
n
• Clogged refrigerant circuit
• Electronic refrigerant control
valve defect (indoor unit)
0343_M_I
12) Symptom: LCD on the remote controller displays “CHECK P04”. (High-pressure switch
activation warning)
4
Start
No
Yes
The system does not operate again.
Yes
Are there connection defects in
the wiring?
Repair the wiring.
No
High-pressure switch defect
High-pressure switch activation
(Both cooling and heating)
• Electronic refrigerant control valve
defect
Refrigerant over-charged
(Cooling)
• Outdoor unit, heat exchanger dirty,
clogged
• Outdoor unit air short
• Outdoor fan stopped
(Heating)
•
• Outdoor unit air short
• Indoor unit, heat exchanger dirty,
clogged
• Large pipe side service valve
closed
• Indoor fan stop
• Air filter clogged
0344_M_I
SM830082
IV - 15
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4. Service procedures
13) Symptom: LCD on the remote controller displays “CHECK P05”. (Negative phase
detection operation warning)
Start
No
Is the power supply to the outdoor
unit normal?
Check the power breaker etc.
and repair
(Voltage defective phase?)
Yes
S
Yes
Does the outdoor unit operate when
two of the three phases are changed?
(Actuation of negative phase protector)
No problem
No
Yes
Yes
Is the fuse (F1, F2) on the indoor
unit PCB blown?
Replace the fuse.
No
4
Is there a contact defect in the
3P connector?
Correct the connection
No
Replace the outdoor PCB
0345_M_I
14) Symptom: LCD on the remote controller displays “CHECK E15”.
Start
Yes
Yes
When the group of the units are
installed, is there any mis-cross
between interunit control wiring and
refrigerant tubing?
Repair the wiring.
No
Are the total capacities of indoor units
to that of outdoor units less than 93%?
Select an indoor unit which matches
with the outdoor capacity.
No
Yes
Are there no contact failure between
outdoor and indoor units?
Check the contact.
No
Perform the same as “CHECK E04”.
0646_M_S
SM830082
IV - 16
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4. Service procedures
15) Symptom: LCD on the remote controller displays “CHECK E16”.
Start
Yes
Yes
When the group of the units are
installed, is there any mis-cross
between inter unit control wiring and
refrigerant tubing?
Repair the wiring.
No
n
Are the total capacities of indoor units
to that of outdoor units more than 107%?
Select indoor units which match with
the outdoor capacity.
No
Confirm less than 5 indoor units are
connected.
0647_M_S
4
16) Symptom: LCD on the remote controller displays “CHECK L13”.
Start
Yes
When the group of the units are
installed, is there any mis-cross
between inter unit control wiring and
refrigerant tubing?
Repair the wiring.
No
Check the capacity of the indoor unit
by remote controller.
0648_M_S
See Test Run Manual.
17) “Check P9” is displayed on the remote control unit.
Start
Yes
Is PNL connector socket
being attached to panel
Connect firmly.
connected firmly with PNL plug?
Yes
Replace P.C.B. Ass’y in the
indoor unit.
2100_M_S
SM830082
IV - 17
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4. Service procedures
18) Symptom: LCD on the remote controller displays “CHECK H01, H02, H03”.
(compressor current detection)
* Please check the related part described in the following chart after confirming the code
setting (S4) of the outdoor unit’s capacity on the PCB in the outdoor unit.
Start
“CHECK H01” display
Compressor overload
“CHECK H03” display
“CHECK H02” display
S
Compressor current detection
circuit defect
Compressor lock detection
detection
• Insufficient voltage
• Comp. motor magnetic contactor
defect
• L3 phase wire disconnected
• Comp. motor magnetic contactor
defect
Compressor lock
• Refrigerant over-charged
• Outdoor unit PCB defect
4
0346_M_I
19) Check the indoor unit (When the alarm of communication failure is not activated)
● If the electronic control valve failure occurred in Flexible Combination system
(simultaneous operation system), one indoor unit would not be operated normally, then
the other units won’t be operated either. Due to this, try to detect the troubled unit and
correct it.
Operate the unit in
cooling mode.
(30 minutes after its operation)
• Cooled air comes out.
Yes
• Is the temperature of each indoor coil sensor almost
Normal
the same? (Refer to the sensor temperature
display function of the remote controller.)
No
• Does each indoor coil sensor detect the temperature
correctly? (Is there any leakage from the pipe of the
temperature detection section?)
Yes
Failure in the electronic
control valve activation.
No
Replace the sensor.
0460_M_I
SM830082
IV - 18
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4. Service procedures
(6) Procedures When a Specific Component Does Not Work
1) Indoor fan does not operate.
No
Is fan motor capacitor
normal ?
Replace the capacitor.
Yes
Is there voltage output
of P.C.B. Ass'y for fan
motor ?
No
Replace the P.C.B. Ass'y
in the indoor unit.
n
Yes
• Check resistance of
fan motor winding.
Out
Replace the fan motor.
4
0650_M_S
2) Flaps in indoor unit’s air outlet does not operate, when you press SWEEP button.
No
Check the louver motor resistance.
Replace the motor.
Is auto louver motor normal?
Is PNL connector socket
attached to panel
connected firmly with PNL plug ?
No
Connect firmly.
Yes
Replace P.C.B. Ass'y in the
indoor unit.
2101_M_S
3) Flap does not operate, when you press
button. (When you press SWEEP button,
flap operates.)
No
Does limit switch actuate?
Replace the switch.
Yes
Is PNL connector socket
No
attached to panel
Connect firmly.
connected firmly with PNL plug ?
Yes
Replace P.C.B. Ass'y in the
indoor unit.
2102_M_S
SM830082
IV - 19
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4. Service procedures
4) Compressor motor does not operate.
No
Does compressor motor magnetic
contactor (52C) actuate ?
Replace the compressor
motor magnetic contactor.
Yes
Check resistance of compressor
motor winding.
S
NG
Replace the compressor.
0461_M_I
5) Outdoor fan does not operate.
4
Are auxiliary relays (1Y)
No
Replace the relays.
normal ?
Yes
No
Replace the capacitor.
Is fan motor capacitor normal ?
Yes
No
Is there voltage output of
Replace P.C.B. Ass’y
in the outdoor unit.
P.C.B. Ass’y for fan motor ?
Yes
Check resistance of fan motor
winding.
NG
Replace the fan motor.
1148_THS_I
SM830082
IV - 20
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4. Service procedures
(7) Service Functions of Optional Wired Remote Controller
From the remote controller you can control both the operation and settings of the unit as well
as perform several useful service checks. This section explains how to use the remote
controller on the following items from (A) to (I).
(A) Use the test run procedure.
(B) Check the sensor temperature readings.
(C) Accessing the service problem history.
(D) Check the remote controller itself for correct operation.
(E) Excute the auto. address operation.
(F) Confirm and change the indoor unit address.
(G) Change the shift temperature in heating mode
(H) Set the indoor unit address.
( I ) Change the period of the filter timer
n
(A) Use the test run procedure
a After holding down the remote controller
button for 4 seconds or more, press the
button.
• While the test is running, “TEST” shows on the LCD display.
• In “TEST” mode, the temperature cannot be adjusted. Do not use this mode except
during test run operation.
b Use “TEST” mode in either heating or cooling operation mode.
4
NOTE
The outdoor unit will not start running for approximately 3 minutes after the power is
turned on or the unit is turned off.
c When the unit is not operating normally, a
code will be displayed on the remote
controller LCD. Refer to the Table of
Self-Diagnostic Functions at “- - -”, and
take the corrective measures indicated.
d After completing the test run operation,
press the
button again and check to
a
see that “TEST” is no longer displayed on
the remote controller LCD.
(The remote controller is equipped with a
timer that terminates test run operation
after 60 minutes in order to prevent con-
tinuous test run operation.)
a, d
2076_M_I
Fig. IV-3
SM830082
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4. Service procedures
(B) Check the sensor temperature readings
The air conditioner has thermo sensors which are used to control the unit.
❏ Each sensor has an address which is made up of the indoor unit address, and the
sensor address. The indoor unit address is used only when several units are hooked
up to one remote controller (group control). If there is only one unit, made up of one
indoor and one outdoor unit, then only the sensor address should be put in, as shown
in the procedure below.
Follow this procedure to display the temperature of each sensor:
a On the remote controller, press both
and
buttons at the same time for more than 4
seconds. (Ref. Fig. IV-4)
b The UNIT No., the address and temperature of the sensors instead of its usual informa-
tion will flash on the display.
S
❏ Following example shows the UNIT No. (Indoor unit address) is fixed at 01– 01.
❑ In case of group control, select the UNIT NO. (Indoor unit address) which you want to
check with
❏ Each time you press the
button.
,
( ) button you can select a different sensor, and the
display shows the sensor address and temperature as shown Fig. IV-4.
Sensor address
4
Sensor temperature °F
Unit No. (Indoor unit address)
a
1929_M_I
Fig. IV-4
SM830082
IV - 22
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4. Service procedures
Refer to the table below for the relationship between the sensor address and the location of the sensor.
Relationship between the sensor address and the location of sensor
Sensor Address
Location of Sensor (Themistor)
(CODE No.)
Indoor Unit
00
01
02
03
04
05
06
07
08
09
A/C controlled room Temp.
Remote controller room Temp.
Indoor air suction Temp.
Indoor coil Temp. (E1)
Indoor coil Temp. (E2)
Indoor coil Temp. (E3)
—
—
Indoor electronic expantion valve Temp.
—
Outdoor Unit 0A
Discharge gas Temp.
0B
0C
0D
0E
0F
10
11
12
13
14
—
—
Outdoor coil liquid Temp. (C2)
Outdoor coil liquid Temp. (C1)
—
—
—
—
—
—
n
NOTE
In case there are no sensor equipped with the unit, “- - -” is shown on the display.
C Resetting the remote controller display to previous mode.
❏
To reset the display, press
button, then the remote controller will return to previous mode.
(C) Accessing the service problem history
The gist of past service problems can be recalled.
4
a Press the
and
buttons simultaneously for 4 seconds or more to enter the service
check mode. The term “CHECK SERVICE” will be illuminated and code No. 01 will be
displayed at first. Then the most recent alarm message will be displayed, showing the
number of the indoor unit that generated the alarm and the nature of the alarm.
b In order to monitor more of the service problem history, press the SET TEMP
button. This will change the service problem history number (code number).
Code number 01 (most recent)…code number 04 (oldest)
,
( )
NOTE
The service problem history keeps four problems in memory.
c Pressing the
button will clear the
entire indoor unit alarm history.
Pressing the
button will restore the
normal operating display.
c
b
a
c
2081_M_I
Fig. IV-5
SM830082
IV - 23
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4. Service procedures
Important
Never press
(clear) button unless you want to erase the accessed data in memory. Follow
the procedure below only when erasing is necessary.
❏ To erase accessed data, press the button.
❏ When erasing is finished,“----” mark appears on the controller’s display.
CAUTION
After checking the alarm messages, be sure to press the
button.
(D) Check the remote controller itself for correct operation
The remote controller has a self-diagnostic function to check for problems in the remote
controller itself.
In order to check, the shorting plug (2P) inserted in the socket (4P) on the back of the remote
controller circuit board should be moved from RCU.Main to RCU.CK. (Ref. Fig. IV-6)
S
NOTE
1) Be sure that the shorting plug is inserted onto RCU.Main during normal operation.
2) The remote controller self-diagnostic function can be run on a remote controller
independently if power of 9–16 VDC is supplied to plug 2P as shown in Figure IV-6.
(A 12-Ω 1/4-W resistor must be placed in between.)
●Checking serial communications
4
The remote controller’s own serial communications sending and receiving circuits can be
checked by moving the shorting plug. The indicators will respond as follows for approximately
10 seconds, then turn off:
Correct : All indicators light up.
Incorrect : All indicators flash on and off.
●Checking I/O circuits
After completing the serial communications check (for 10 seconds), operate each switch on
the remote controller. If the LCD display responds, then the remote controller is normal.
TIMER
TMNL.
During normal
operation
12Ω•1/4W
DC9
~16V
Shorting plug
is moved.
RCU.Main
RCU.CK
RCU.Sub
RCU
TMNL.
RCU.ADR
During self-
diagnostic check
2079_M_I
Fig. IV-6
SM830082
IV - 24
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4. Service procedures
Important
Never press
(clear) button unless you want to erase the accessed data in memory. Follow
the procedure below only when erasing is necessary.
❏ To erase accessed data, press the button.
❏ When erasing is finished,“----” mark appears on the controller’s display.
CAUTION
After checking the alarm messages, be sure to press the
button.
(E) Execute the auto. address operation
❏ Auto. address operation is executed by pressing the A. ADD (S1) button of out-
door unit’s PCB usually.
For your convenience it can be executed by remote controller also.
n
a Press the
and
(
) buttons at the same time for more than 4 seconds. (Fig. IV-7)
b Set CODE No. A1 with
,
( ) button.
In this mode, the auto. address
operation is executed at each R.C.
(Refrigerant Circuit) line one by one.
4
b
a
d
c
1931_M_I
Fig. IV-7
c Select R.C. No. which you want to execute the auto. address operation with
button.
d Press the
button. The auto. address operation will start. CODE No. changes from
flashing to ON state.
e If an error occurs during operation, the alarm message will be displayed. Check and re-
move the cause. If you want to stop the operation, press the button then the unit
stands in waiting mode (Press the button again.)
f If the automatic address operation finishes, the display will disappear.
g Execute the operation of the other R.C. line in the same way by following the above steps
c to d .
SM830082
IV - 25
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4. Service procedures
(F) Confirm and change the indoor unit address (Ref. Fig. IV-8, IV-9)
❏ The purpose of the above function is to let you confirm the indoor unit address after
the auto. address operation, and change the indoor unit address if it is needed.
a Press the
and
(
) buttons at the same time for more than 4 seconds.
b Select the R.C. No. which you want to change with the
(up) or
(down)
buttons.
c Press the
button (to confirm the R.C. No.).
The smallest registered indoor No. and the selected R.C. No. will be displayed.
d Select the indoor No. which you want to change with
the fan motor of selected indoor unit will turn on and let you confirm the indoor unit
address.
button. Once in this mode,
S
e Set the required new indoor unit’s No. by pressing the
,
(
) button.
f Press the button.
UNIT No, SET DATA (0001) and
changes from flashing to ON state.
button.
g If you made a mistake, press the
h Finally, press the
button.
4
i If you want to change the indoor unit address of the other R.C. No., follow the step ato h
in the same way.
h
a
e
c
b
f
1932_M_I
2077_M_I
Fig. IV-8
Fig. IV-9
SM830082
IV - 26
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4. Service procedures
(G) Change the shift temperature in heating mode (Ref. Fig. IV-10)
❏ If the indoor unit is installed at high location (ex. ceiling level), the thermostat tends to turn off at
heating mode because of the hot air temperature around ceiling level. In order to solve the
problem, the shift temp. (valid while heating only) is set when shipped from factory.
❏ If the shift temp. is not enough (ex. the indoor unit is installed at position higher than 3 m), the
shift temp. can be set with remote controller from 0 to +10 deg (°F) <from 0 to 20 deg (°F)>.
manually as follows:
a Press the
+
buttons at same time for more than 4 seconds.
b In case of group control, if you want to change all units in group control collectively, pro-
ceed next step remaining ALL displayed.
If you want to change a unit individually, select the indoor unit address (UNIT No.) with
button.
c Select the CODE No. 06 with
,
( ) button.
n
d Choose the shift temp with
,
(
) button.
e Press the
button.
CODE No. 06, SET DATA and
change from flashing to ON state.
button.
f If you made a mistake, press the
g Finally, press the
button.
4
a
d
c
e
b
1933_M_I
Fig. IV-10
SM830082
IV - 27
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4. Service procedures
(H) Set the indoor unit address (Ref. Fig. IV-11, IV-12)
❏ This function is usable if the auto. address operation is not available.
Indoor unit address can be set one by one by remote controller in such case.
NOTE
1) In case of group control, branch wiring for group control should be removed
temporarily.
2) In case of remote controllerless system, remote controller should be connected
with the indoor unit temporarily.
(Set the No. of R.C. address)
b Press the
c Set the CODE No. 12 to set the No. of R. C. with the
d Set the No. of R. C. which you want to set with
e Press the button.
,
and
buttons at the same time for more than 4 seconds.
,
( ) button.
,
(
) button.
S
UNIT No., CODE No. 12,
and SET DATA (0002) change from flashing to ON state.
(Set the indoor address)
f Select the CODE No. 13 to set the indoor unit No. with the
g Set the indoor unit No. which you want to set with the
h Press the button.
,
( ) button.
,
(
) button.
4
UNIT No., CODE No. 13,
state.
and SET DATA (0004) change from flashing to ON
(Set the group address)
i Select the CODE No. 14 to set group setting with the
j Set the No. of group setting with the ) button.
k Press the button.
,
( ) button.
,
(
UNIT No., CODE No. 14,
and SET DATA change from flashing to ON state.
l If you made a mistake, press the
button so that setting returns to the initial state.
m Press the
button to finish this mode.
The display is disappeared.
n Confirm the indoor unit address (UNIT No.) with the
button after pressing the
ON / OFF button.
o In case of group control, be sure to restore the branch wiring to its original wiring. In
case of remote controller–less system, remove the remote controller.
SM830082
IV - 28
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4. Service procedures
R.C. address
1
2
3
d, g,
j
R.C. address
1
2
3
1
0
1
0
1
0
Indoor address
Group address
c, f,
i
m
2078_M_I
e, h, k a
2080_M_I
Fig. IV-11
Fig. IV-12
( I ) Change the period of the filter timer (Ref. Fig. IV-13)
n
❏ If the period of filter timer is not suitable (for example in case of dirty environment), the
period can be shortened to half as follows:
a Press the
+
buttons at same time for more than 4 seconds.
b In case of group control, if you want to change all units in group control collectively, pro-
ceed next step remaining “ALL” displayed.
If you want to change a unit individually, select the indoor unit address (UNIT No.) with
button.
4
c Select the CODE No. 02 with
,
( )
button.
d Change the No. from 0000 to 0001 with
,
(
) button.
e Press the
button.
CODE No. 06, SET DATA and
change from flashing to ON state.
f If you made a mistake, press the
button.
1934_M_I
Fig. IV-13
g Finally, press the
button.
SM830082
IV - 29
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4. Service procedures
Earthed wire
4-2 Checking the Electrical Components
Clip
(1) Measurement of Insulation
Resistance
Probe
• The electrical insulation is acceptable when the
resistance exceeds 1 MΩ.
Insulation
tester
Fig. IV-14
0638_X_S
1
Power Supply Wires
Terminal plate
Clamp the earthed wire of the Power Supply wires
with a lead clip of the insulation resistance tester and
measure the resistance by placing a probe on either
of the power wires. (Fig. IV-14)
S
Probe
Then measure the resistance between the earthed
wire and the other power wires. (Fig. IV-14)
2
Indoor Unit
Clamp an aluminum plate fin or copper tube with the
lead clip of the insulation resistance tester and
measure the resistance by placing a probe on the
terminal plate (Fig. IV-15)
4
Clip
Copper
tube or
Insulation
tester
metallic part
3
Outdoor Unit
Fig. IV-15
0639_X_S
Measure the resistance by placing a probe on the
terminal plate in the same manner as explained
above 2. (Fig. IV-15)
Probe
4
Measurement of Insulation Resistance for
Electrical parts
•
Disconnect the connector of the desired electric part
Clip
from terminal plate, P.C.B. Ass’y, etc. (Fig. IV-16)
Copper
• Similarly, disconnect the lead wires from
tube or
compressor, capacitor, etc. (Fig. IV-17)
metallic part
• Measure the resistance in the same manner as
illustrated on the right.
Insulation
tester
Fig. IV-16
0640_X_S
Refer to Electrical Wiring Diagram.
From fan motor,
compressor and other
parts.
NOTE
If the probe does not enter the hole because the
hole is too narrow, use a probe with a thinner pin.
Probe
Metallic
part
Clip
Insulation
tester
0641_X_S
Fig. IV-17
SM830082
IV - 30
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4. Service procedures
(2) Checking the Protective Devices
•
Disconnect the connector, which consists of P (plug) and S (socket) when you want to
check the protective device.
•
•
Then check continuity among plug’s (and/or socket’s) terminal as in Fig. IV-18.
Normality of the protective device can be judged by the following table.
The Protective Device is proved normal if there is a continuity between terminals.
socket
n
Multimeter
Ω
Fig. IV-18
4
0642_X_S
1
2
3
Indoor fan motor thermal protector (49FI) . . . . . . Indoor unit
•
•
Disconnect the connector which leads to the indoor fan motor (FMI).
Check the socket’s terminals.
Compressor motor thermal protector . . . . . . Outdoor unit
•
•
Disconnect the wires from terminals of compressor.
Check the terminals of compressor.
Outdoor fan motor thermal protector (49FO) . . . . . . Outdoor unit
•
•
Disconnect both the connector which leads to the outdoor fan motor (FMO).
Check socket’s terminal.
SM830082
IV - 31
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4. Service procedures
(3) Checking the Electrical Parts
1
Power transformer (TR1) ..................... Indoor unit *Measure the coil resistance.
•
Primary 230-208V ; Measure the resistance between No.1 and No.3
(WHT lead wires) terminals of 3P (WHT) socket connected to
power transformer.
•
Secondary
14.8V ; Measure the resistance between No.1 and No.2
(RED lead wires).
14.8V ; Measure the resistance between No.3 and No.4
(BRN lead wires).
S
Refer to “1-3 Other component specifications”.
Power transformer (TR) .................... Outdoor unit *Measure the coil resistance.
2
•
Primary 230-208V ; Measure the resistance between No.1 and No.3
(WHT lead wires) terminals of 3P(WHT) socket jointed to power
transformer.
•
Secondary
14 V ; Measure the resistance between No.1 and No.2
(BRN lead wires).
4
Refer to “1-3 Other component specifications”.
Indoor fan motor (FMI) .........................Indoor unit *Measure the coil resistance.
3
•
Measure the resistance between each terminal of 9P (WHT) socket connected to the
indoor fan motor.
Refer to “1–2–(A) Major component specifications”.
4 Outdoor fan motor (FMO) .....................Outdoor unit *Measure the coil resistance.
•
Measure the resistance in the same manner as explained above 3.
Refer to “1–2–(B)Major component specifications”.
SM830082
IV - 32
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4. Service procedures
5
Motor capacitor ............ Both in indoor and outdoor unit
• Remove the lead wires from the capacitor terminals, and then place a probe on the capacitor
terminals as shown in Fig. IV-19. Observe the deflection of the pointer, setting the resistanc
measuring range of the multimeter to the maximum value.
• The capacitor is “good” if the pointer bounces to a great extent and then gradually returns to
its original position.
NOTE
The range of deflection and the deflection time
differ according to the capacity of the capacitor.
n
Multimeter
Ω
4
Compressor motor
capacitor
Fan motor
capacitor
1041_X_S
Fig. IV-19
6
Continuity of fuse on P.C.B. Ass’y
•
Check for continuity using a multimeter
as shown in Fig. IV-20.
Fuse
NOTE
Method Used to Replace Fuse on PCB Ass’y
1. Remove the PCB Ass’y from the electrical compo-
nent box.
1042_X_S
Fig. IV-20
Soldering iron
2. Remove the fuse from PCB Ass’y using pliers while
heating the soldered leads on the back side of the
PCB Ass’y with a soldering iron (30W or 60W).
(Fig. IV-21)
PCB Ass’y
Fuse
3. For replacement, insert a fuse of the same rating to
the intended position and solder it.
Varistor
(Allow time to radiate heat during soldering so that
the fuse does not melt.)
When replacing the fuse, be
Pliers
CAUTION
sure not to break down the
varistor.
1043_X_S
Fig. IV-21
SM830082
IV - 33
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4. Service procedures
7
8
9
Solenoid coil of the electronic refrigerant
*Measure the coil resistance.
control valve (ERCV) ………… Indoor unit
•
Measure the resistance between No. 5 (GRY lead wire) and other terminals (another color of
lead wires) of 5P (WHT) plug connected to the solenoid coil.
Refer to “1-2-(A) Major component specifications”.
Compressor motor (CM) ……… Outdoor unit
In case of single -phase compressor
*Measure the coil resistance.
•
Remove the cover of compressor terminal and measure the resistance
between terminals.
S
Refer to “1-2 Major component specifications”.
Compressor motor magnetic contactor (52C) ………… Outdoor unit
•
Measure the resistance between A (ORG lead wire) and B (GRY lead wire) terminals on
the compressor motor magnetic contactor.
Refer to “1-3 Other component specifications”.
Check the continuity between contactors.
4
•
FMCA–1UL
MODEL
Push button on
the magnetic
contactor
Pair of terminals
R – U S – V T – W 31 – 32
no press
press
––––
YES
––––
YES
––––
YES
YES
––––
0
Solenoid coil of 4-way valve (20S) … Outdoor unit
*Measure the coil resistance.
•
Measure the resistance between No.1 (BLK lead wire) and No.2 (BLK lead wire) terminals
of 2P (BLK) socket connected to the solenoid coil.
Refer “1-3 Other component specifications”.
SM830082
IV - 34
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4. Service procedures
(4) Thermistor Characteristic Curv
(2) Indoor heat exch.
coil sensor
(1) Room temp. sensor : TH1 (KTEC-35)
: TH2(E1), TH3(E2)
Outdoor heat
exch. coil sensor : TH6(C1), TH7(C2)
( PBC-41E)
40
n
35
10
9
8
7
6
5
4
3
2
1
30
25
20
15
10
4
5
0
–4
5
14
23
32
41
50
59
68
50
59
68
77
86
95 104
Temperature (°F)
1045_M_I
Temperature (°F)
1044_M_I
(3) Compressor discharge gas temp. sensor : TH8 (PTC-51H)
7
6
5
4
3
2
1
176
194
212
230
248
266
Temperature (°F)
1149_THS_I
SM830082
IV - 35
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4. Service procedures
(5) PCB Setting
● Setting of outdoor control PCB
(A) Standard control (single outdoor unit)
In case of single outdoor unit installation, even if
in case of twin, triple or quartet type (2, 3 or 4
indoor units), no setting necessary.
Keep factory shipment state (R.C. address is set
in “0”).
S
In this case, auto. address operation takes place
automatically for the first time when the power is
switched on. This takes about a few minutes.
(B) Group control (Multiple outdoor units)
In case of group control (up to 8 indoor units can
be connected with one remote controller), before
turning the power supply on set the R.C. address
with S2, S3 on the outdoor control PCB.
4
R.C. address: Refrigerant circuit address 1 ~ 30.
(C) Central control (when using the system
controller)
In case of central control (when using the system
controller,that is, when linking outdoor units in a
network),
(a) Before turning the power supply on, set the
R.C. address with S2, S3 on the outdoor
control PCB.
(b) Remove the short plug (CN006, 2P Black)
from all outdoor units except any one of
outdoor unit.
● Setting of indoor control PCB
No setting necessary.
Each indoor unit address (UNIT No.: R.C. – No.) is decided after auto. address operation.
Indoor unit No.
Refrigerant Circuit No. (R.C. address)
Manual setting for indoor unit address can be performed also by remote controller.
SM830082
IV - 36
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4. Service procedures
(6) R.C. Address Setting Method
Outdoor unit R.C. address setting method
In case of group control or central control, set the R.C. address to 1, 2, 3, ... according to the No. of outdoor
units.
Outdoor control PCB
CN006 (2P Black)
Refrigerant circuit address
(factory setting = 0)
n
Refrigerant circuit address (black)
0
: S2
Refrigerant circuit address
(2P DIP switch, green or Blue)
10
20
position position
ON
ON side
: S3
OFF side
A. ADD (S1):
Automatic address setting start button
Used for central control (link system)
1
2
and group control (Normally, not used)
4
2093_C_I
R.C. address
(S3 2P dip switch, green or blue)
R.C. address
R.C. address
(S2 Rotary switch, Black)
ON
ON side
0
00 auto address
(“0” when shipped from factory)
Both OFF
Set to 0
1
2
OFF side
SM830082
IV - 37
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4. Service procedures
(7) Automatic Address Setting Method
(8) Displaying Indoor / Outdoor Unit Com-
bination Numbers
— For group control and central control with multiple
outdoor units —
Display the indoor / outdoor unit address after auto-
matic address setting.
Carry out automatic address setting with the
remote controller.
(1) All auto. address operation
(1) When installing multiple units, match the indoor
unit address numbers and the outdoor R.C.
address numbers and display them at an easy-to-
check location (near the nameplate) with an oil-
based magic marker or other indelible marker so
that the individual indoor and outdoor unit combi-
nations can be checked.
1
Press the
the same time for more than 4 seconds.
Press the button after confirming the
and
(
) buttons at
2
S
CODE No. AA (CODE No. AA: All Auto.
address operation).
After addresses are automatically set in
order for the outdoor units from No. 1 to No.
30, the system returns to the normal
stopped state.
Example:
Outdoor Unit 1 – Indoor Units 1-1, 1-2, 1-3, ....
Outdoor Unit 2 – Indoor Units 2-1, 2-2, 2-3, ....
(2) Individual auto. address operation for each
refrigerant circuit
(2) This is necessary for maintenance. Always label
these.
1
To select each refrigerant circuit individually
and set addresses automatically, press the
*Check indoor unit address with the remote
4
controller. Press the
button for at least 4
and
time for more than 4 seconds, then press
the ) button once to set
CODE No. A1.
(
) buttons at the same
seconds and check the indoor unit address with
the
button. (Each time you press the
,
(
button, the address changes 1-1, 1-2, ...
2-1, 2-2, ...) The fan for only the selected indoor
unit turns on at high speed, so check which
indoor unit runs and label the indoor unit address.
(If there is 1 outdoor unit, the addresses are 1-1,
1-2, ...)
(CODE No. A1: Auto. address operation)
2
3
4
Select R.C. No. which you want to execute
the auto. address operation with
button.
Press the
button. The auto. address
When you press the
button again, the system
operation will start. CODE No. changes from
flashing to ON state.
returns to normal remote control mode.
If the error is happened during the operation,
the alarm message will display. Check and
remove the cause. If you want to interrupt
the operation, press the
button then the
unit stands in waiting mode (Press the
button).
5
6
If the auto. address operation finishes, the
display will disappear.
Execute the operation of the other R.C. line
in the same way by following the above
steps 2 to 3.
7
Complete the auto. address operation by
pressing the
button.
NOTE
Required time for auto. address operation:
In case of group control : a few minutes for each R.C.
In case of central control : max. about 20 min. for
each R.C.
SM830082
IV - 38
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4. Service procedures
(9) Items to Check Prior to Test Run
(1) Turn on the power supply switch more than 5 hours before in order to charge the crank case heater.
(2) Fully open the outdoor service valve after making the leak inspection of field connected tubing, vacuuming,
and gas charging if necessary.
(3) Check the capacity code setting.
*
*
The factory setting is as shown in the table. Double check it.
The capacity code is set by S4 (green or blue, 4P DIP switch) on outdoor control PCB.
n
Outdoor control PCB
4
S4 (green or Blue) capacity code
(4P DIP switch)
ON
ON side
1
2
3
4
OFF side
2094_C_I
S4. Capacity code
No.
Outdoor PCB
Model No.
24 type
1
2
3
4
ON ON ON OFF
OFF ON OFF ON
ON ON OFF ON
36 type
48 type
SM830082
IV - 39
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4. Service procedures
(10) Test Run
■ Preparing for Test Run
ON
● Before attempting to start the air conditioner,
(Power must be turned ON
at least 5 hours before
attempting test run)
check the following:
(1) All loose matter is removed from the cabinet
especially steel filings, bits of wire, and clips.
(2) The control wiring is correctly connected and all
electrical connections are tight.
Power mains switch
0765_C_I
(3) The protective spacers for the compressor used
for transportation have been removed. If not,
remove them now.
Fig. IV-22
S
Narrow tube service
valve (3-way valve)
(4) The transportation pads for the indoor fan have
been removed. If not, remove them now.
(5) The power has been connected to the unit for at
least 5 hours before starting the compressor. The
bottom of the compressor should be warm to the
touch and the crankcase heater around the feet
of the compressor should be hot to the touch.
(Fig. IV-22)
Wide tube service
valve (ball valve)
4
Fully OPEN
Fully OPEN
(6) Both the wide and narrow tube service valves are
open. If not, open them now. (Fig. IV-23)
1371_C_I
Fig. IV-23
● Test run procedure
❏ The purpose of the test run function is to let you control the operation of the unit directly without the
thermostat turning the unit on or off. As indicated in the following procedure, switch out of TEST
RUN when you are finished, or the air conditioner can be damaged because it will not cycle on and
off normally.
❏ To protect the air conditioner from overloading, the outdoor unit will not start running for 3 minutes
after power is applied or the unit is turned OFF.
a
b
c
d
e
Press the
controller. (Fig. IV-24)
(TEST RUN) button on the remote
Alarm message
Press the
to start the test run.
(ON / OFF operation) button
Press the
COOL or HEAT mode.
(MODE) button to select either
When the test run has started, “TEST” shows on
display of the remote controller.
During the test run, the air conditioner runs
continuously and the thermostat does not control
the system.
f
After the test run, press the
button once
again to cancel this mode and check that “TEST”
is not shown on the display.
The TEST RUN button is
used only for servicing the
air conditioner. Do not press
this button for normal
operation, or the system
may be damaged.
CAUTION
TEST RUN/CHECK
button
ON/OFF operation MODE button
button
2057_C_I
Fig. IV-24
SM830082
IV - 40
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4. Service procedures
● Test Run Procedure
Start
Yes
Turn on RCU address SW
of sub remote control unit
Multiple remote
control?
No
Recheck the test items before test operation.
Check the indoor and outdoor unit combination (wiring).
n
Single type?
Multiple indoor
units for one outdoor
units?
Yes
Yes
(One indoor unit and one
remote controller for one
outdoor unit)
No
Turn on power supply for indoor units side
first Then turn on power supply for outdoor
unit side.
No
Group control
for multiple outdoor
units?
Yes
Set the outdoor unit R.C. address.
Turn on power supply switch.
Go next
R.C. line
4
No
Press A. ADD (S1) button (See P87).
or
Execute auto. address operation with the
remote controller.
No
Yes
Finish all
R.C. line?
Central control
for multiple outdoor
units?
Yes
CN4: Open (*)
Set the outdoor unit R.C. address.
Turn on power supply switch.
Go next
R.C. line
No
Press A. ADD (S1) button (See P87).
or
No
Execute auto. address operation with the
remote controller.
Yes
Finish all
R.C. line?
Display the combination number.
Set the remote controller to test operation.
No
Check according the self-diagnostics function table,
see Sec. 12-8, 9, 10, and if there is a location to correct,
correct it.
Is operation possible?
Note: Check the indoor side drain water.
Yes
Return the remote controller to normal.
End
NOTE
2231_M_I
1) One of CN006 of all linked outdoor units shold be short.
2) In case of using system controller, zone registration is required after finishing Test run.
Regarding the zone registration, please refer to page 74 and 75.
SM830082
IV - 41
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4. Service procedures
(11) PCBs and Their Location
● PCB (CR-TH2442) FOR INDOOR UNITS
CN77 (GRN) : LM
CN74 (WHT) : RS2
F2 : Fuse 250V / 5A
CN85 (BLU) : DPH
CN78 (BLU) : DP
F1 : Fuse 250V / 5A
CN73 (BLK) : RS1
S
CN81 (GRY) : T20
CN80 (RED) : 26H
CN83 (WHT) : FM
CN75 (WHT) : VCC
4
CN201 (WHT) : FAN DRIVE
CN8 (WHT) : LS
CN6 (RED) : EXCT
CN9 (RED) : FS
D80 LED : POW
CN71 (YEL) : T10
CN33 (YEL) : ROOM TEMP
E2P-ROM
CN31 (RED) : COIL E1
CN70 (WHT) : T6
CN91 (WHT) : CRV
CN32 (BLK) : COIL E2
CN2 (WHT) : TEST
CN3 (WHT) : TMX60
CN5 (WHT) : CHK
CN30 (BRN) : COIL E3
CN35 (GRN) : PNL
CN44 (BRN) : EMG
CN40 (BLU) : OC
CN1 (WHT) : DISP
F3 : Fuse 0.5A
CN41 (BLU) : RC
CN42 (BLU) : WL
2124_C_S
SM830082
IV - 42
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4. Service procedures
● PCB (CR-CH2442) FOR OUTDOOR UNITS
CN013 (WHT) : CK. H
CN012 (WHT) : CK. L
CN011 (RED) : TEST
CN008 (WHT)
CN023 (GRN) : DISCH
CN022 (RED) : C2
CN021 (BLK) : C1
CN003 (WHT) : VCC
n
CN026 (YEL)
: TMX60
CN007 (RED)
: EXCT
CR-CH2442
S001 (A. ADD)
: Auto address
CN025 (WHT) : CT1
D015 LED : POW
S004 (BLU)
: Capacity code
4
CN004 (BLU) : OC
S003 (BLU)
: R.C. address
CN005 (BRN) : EMG
S002 (BLK)
: R.C. address
F003 : Fuse
125V / 0.5A
CN100 (BLK) : JM
CN015 (YEL) : 20S
CN016 (BLK) : 52C
CN002 (WHT) : RS
F002 : Fuse 250V / 3A
CN001 (BLU) : SUP
CN017 (RED) : 63PH
F001 : Fuse 250V / 3A
2178_C_I
SM830082
IV - 43
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4. Service procedures
(12) Checking procedure for each PC Board
The indoor and outdoor PCBs have functions to check the signal transmission and reception of the
serial circuit and to check the microcomputer operation. (Self-diagnosis function)
● Precautions required when checking
1. After turning off the power to the indoor (outdoor) unit, remove the inter-unit control wiring (U1-U2)
and create a short-circuit between U1 and U2.
2. Short the CHECK PIN on the PC board of the indoor (outdoor) unit and turn on the power.
3. When checking the Outdoor controller, remove the compressor wiring from the compressor
electromagnetic contactor.
S
4-1. Checking the serial circuit
Indoor controller: A lighted LED indicates normal. A blinking LED indicates abnormal.
Outdoor controller: Blinking LEDs (D11 and D22) indicate normal. If one of the LEDs (D11 and D22)
goes off, it indicates abnormal.
4-2. Checking microcomputer operation
When the microcomputer works normally, the relays are switched in sequence as below.
4
Indoor controller
Output
ON time
Indoor fan Very high fan speed (HH) 0.5 seconds
Indoor fan High fan speed (H)
Indoor fan Low fan speed (L)
Indoor fan Very low fan speed (LL)
Flap motor
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
Drain pump
Operation order Electric heater
Operation signal
In a lump
Electronic control valve A
Electronic control valve B
Electronic control valve.A
Electronic control valve B
Outdoor controller
Output
ON time
Outdoor fan High fan speed (H)
Outdoor fan Low fan speed (L)
4-way valve
0.5 seconds
0.5 seconds
0.5 seconds
0.5 seconds
Operation order
Compressor
SM830082
IV - 44
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4. Service procedures
(13) TMX60 pins
When shorting TMX60 pins on the indoor and outdoor PCBs, operations shown on the above table will be per-
formed on each indoor and outdoor unit. Use TMX60 pins to perform a quick check.
NOTE
• When checking pin operation, stop the indoor and outdoor units with the remote control unit.
■ Shorting CK.L or CK.H pin of the outdoor PCB
● When shorting the cooling pin (CN8) with normal operation
n
• Relay RY3 is turned ON for 3 seconds
• Relay RY4 is turned ON for 3 seconds
➞ The outdoor fan motor operates at the “LL” fan speed.
➞ The outdoor fan motor oprates at the “H” fan speed.
• Turn ON relay RY2 under the above condition ➞ The magnet switch (52C) turns ON.
It will take about 18 seconds before cooling operation begins.
● Shorting the heating pin (CN9) with normal operation
• Relays RY3 and RY4 are turned ON for 3 seconds ➞ The outdoor fan motor operates at the “H” fan speed.
• Relay RY3 is turned ON for 3 seconds
➞ The outdoor fan motor operates at the “LL” fan speed.
➞ The magnet switch (52C) turns ON. If relay RY1 is
turned ON, the 4-way valve (20S) turns ON.
• Turn ON relay RY2 under the above conditions
4
It will take about 18 seconds before heating operation begins.
NOTE
• The outdoor unit operates independently regardless of the indoor unit’s operation. However, the outdoor unit
does not defrost.
• The indoor and outdoor units stop when the outdoor protection apparatus activates during the checking
operation, and automatically restarts, unlike in normal operation.
SM830082
IV - 45
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SANYO FISHER Service Company
CENTRAL REGION
1739 Sands Place, Suite G
Marietta, GA 30067
Phone: (770) 951-8284
Fax: (770) 951-2077
July. / ’01
Printed in U.S.A.
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