FILE NO. A06-005
Revised: Jun, 2008
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
<DIGITAL INVERTER>
INDOOR UNIT
RAV-SM402MUT-E
RAV-SM452MUT-E
RAV-SM562MUT-E
This Service Manual describes contents of the new indoor unit.
For the outdoor unit, refer to the Service Manual with FILE NO. A05-001 and A07-003.
R410A
PRINTED IN JAPAN, Jun, 2008 ToMo
7. CONTROL BLOCK DIAGRAM................................................................. 38
7-1. Indoor Control Circuit....................................................................................... 38
7-2. Control Specifications...................................................................................... 39
7-3. Indoor Print Circuit Board ................................................................................ 46
8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS........... 47
8-1. Indoor Control Circuit....................................................................................... 47
9. TROUBLESHOOTING.............................................................................. 49
9-1. Summary ofTroubleshooting........................................................................... 49
9-2. Check Code List................................................................................................ 51
9-3. Error Mode Detected by LED on Outdoor P.C. Board .................................... 54
9-4. Troubleshooting Procedure for Each Check Code......................................... 55
10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD ............................ 71
11. SETUP AT LOCAL SITE AND OTHERS .................................................. 75
11-1. Indoor Unit......................................................................................................... 75
11-2. Setup at Local Site / Others ............................................................................. 82
11-3. How to Set up Central Control Address Number ........................................... 86
12. ADDRESS SETUP.................................................................................... 87
12-1. Address Setup Procedure................................................................................ 87
12-2. Address Setup & Group Control...................................................................... 88
12-3. Address Setup (Manual Setting from Remote Controller)............................. 91
12-4. Confirmation of Indoor Unit No. Position ....................................................... 92
13. DETACHMENTS ....................................................................................... 93
13-1. Indoor Unit......................................................................................................... 93
14. EXPLODED VIEWS AND PARTS LIST .................................................. 101
14-1. Ceiling Panel ................................................................................................... 101
14-2. Compact 4-way Air Discharge CassetteType............................................... 102
– 3 –
1. SPECIFICATIONS
1-1. Indoor Unit
1-1-1. 4-Way Air Discharge CassetteType
<Single type>
Indoor unit
RAV-
SM402MUT-E
SM452MUT-E
SM562MUT-E
Model
Outdoor unit
RAV- SP404AT(Z, ZG)-E SP454AT(Z, ZG)-E SP562AT(Z, ZG)-E
Cooling capacity
(kW)
(kW)
3.6
4.0
4.0
5.0
5.6
Heating capacity
4.5
Power supply
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(%)
5.05 – 4.63
5.82 – 5.33
6.6 – 7.15
Power consumption
1.00
1.19
1.53
Power factor
Cooling
90
3.60
A
93
97
3.27
A
EER
3.36
Energy efficiency class ∗
A
Energy rating ∗∗
5.0
4.5
4.5
Electrical
characteristics
Running current
(A)
(kW)
(%)
4.79 – 4.39
0.97
92
5.67 – 5.20
6.62 – 7.21
1.54
97
Power consumption
1.16
Power factor
Heating
93
COP
Energy efficiency class ∗
Energy rating ∗∗
4.12
A
3.88
3.64
A
A
5.5
5.0
4.5
Main unit
Zinc hot dipping steel plate
RBC-UM11PG (W)-E
Appearance
Model
Panel color
Height
Width
Ceiling panel
(Sold separately)
Moon-white (Muncel 2.5GY 9.0/0.5)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
268
Main unit
575
Depth
575
Outer
dimension
Height
Width
27
700
Ceiling panel
(Sold separately)
Depth
700
Main unit
17
Total weight
Ceiling panel (Sold separately)
(kg)
3
Heat exchanger
Finned tube
Turbo fan
Fan
Fan unit
Standard air flow
Motor
H/M/L
(m³/min.)
(W)
11.0 / 9.2 / 7.8
13.3 / 11.2 / 9.1
60
Air filter
Long life filter
Controller (Sold separately)
Connecting pipe
Remote controller
Gas side
Liquid side
Drain port
H/M/L
(mm)
(mm)
12.7
6.4
(mm)
VP25
Sound pressure level
Sound power level
(dB•A)
(dB•A)
40 / 36 / 31
55 / 51 / 46
43 / 39 / 34
58 / 54 / 49
H/M/L
∗ : IEC standard, ∗∗ : AS standard
– 4 –
<Single type>
Indoor unit
RAV-
RAV-
(kW)
(kW)
SM562MUT-E
SM562AT-E
5.0
SM562MUT-E
SM563AT-E
5.0
Model
Outdoor unit
Cooling capacity
Heating capacity
Power supply
5.6
5.6
1 phase 230V (220 – 240V) 50Hz
Running current
Power consumption
Power factor
(A)
(kW)
(%)
7.02 – 7.75
7.02 – 7.75
1.61
1.61
95
3.11
B
95
3.11
B
Cooling
EER
Energy efficiency class ∗
Energy rating ∗∗
Running current
Power consumption
Power factor
4.0
4.0
Electrical
characteristics
(A)
(kW)
(%)
7.04 – 7.72
1.61
95
7.04 – 7.72
1.61
95
Heating
COP
3.48
B
3.48
B
Energy efficiency class ∗
Energy rating ∗∗
4.5
4.5
Main unit
Zinc hot dipping steel plate
Model
RBC-UM11PG (W)-E
Appearance
Ceiling panel
Moon-white
(Muncel 2.5GY 9.0/0.5)
(Sold separately)
Panel color
Height
Width
Depth
Height
Width
Depth
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg)
268
Main unit
575
575
Outer
dimension
27
700
Ceiling panel
(Sold separately)
700
Main unit
17
Total weight
Ceiling panel (Sold separately)
(kg)
3
Heat exchanger
Finned tube
Turbo fan
13.3 / 11.2 / 9.1
60
Fan
Fan unit
Standard air flow
Motor
H/M/L
(m³/min.)
(W)
Air filter
Long life filter
Remote controller
12.7
Controller (Sold separately)
Sound pressure level
Sound power level
H/M/L
(dB•A)
(dB•A)
(mm)
(mm)
(mm)
H/M/L
6.4
Gas side
Liquid side
Drain port
VP25
Connecting pipe
43 / 39 / 34
58 / 54 / 49
∗ : IEC standard, ∗∗ : AS standard
– 5 –
<Twin type>
Indoor unit 1
Indoor unit 2
Outdoor unit
RAV-
RAV-
SM562MUT-E
SM562MUT-E
SP1102AT(Z, ZG)-E
10.0
SM562MUT-E
SM562MUT-E
SP1104AT(Z, ZG)-E
10.0
Model
RAV-
Cooling capacity
Heating capacity
(kW)
(kW)
11.2
11.2
Indoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
Running current
Power consumption
Power factor
EER
(A)
(kW)
(%)
10.31 – 11.24
12.51 – 11.47
2.4
2.67
97
97
Cooling
4.17
3.75
Energy efficiency class ∗
Energy rating ∗∗
Running current
Power consumption
Power factor
A
A
—
—
Electrical
characteristics
(A)
(kW)
(%)
10.95 – 11.95
12.51 – 11.47
2.55
97
2.67
97
Heating
Fan
COP
4.39
A
4.19
A
Energy efficiency class ∗
Energy rating ∗∗
—
—
Turbo fan
Fan unit
Standard air flow H/M/L
Motor
(m³/min.)
(W)
13.3 / 11.2 / 9.1
60
Sound pressure level
Sound power level
H/M/L
H/M/L
(dB•A)
43 / 39 / 34
58 / 54 / 49
(dB•A)
Outdoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
7.5
Standard length
(m)
(m)
(m)
(m)
(m)
Min. length
5
3
Outer
Max. total length
50
dimension
Outdoor lower
Outdoor higher
30
30
Height
difference
Fan
Propeller fan
Fan unit
Standard air flow volume
Motor
(m³/min.)
(W)
125
101
63 + 63
100 + 100
Main
(mm)
15.9
12.7
9.5
Gas side
Sub
(mm)
Connecting
pipe
Main
(mm)
Liquid side
Sub
(mm)
6.4
Sound pressure level
Sound power level
Cooling/Heating
Cooling/Heating
(dB•A)
(dB•A)
49 / 51
66 / 68
49 / 50
66 / 67
∗ : EC standard, ∗∗ : AS standard
– 6 –
<Twin type>
Indoor unit 1
Indoor unit 2
Outdoor unit
RAV-
RAV-
SM562MUT-E
SM562MUT-E
SM1102AT-E
10.0
SM562MUT-E
SM562MUT-E
SM1103AT-E
10.0
Model
RAV-
Cooling capacity
Heating capacity
(kW)
(kW)
11.2
11.2
Indoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
Running current
Power consumption
Power factor
EER
(A)
(kW)
(%)
14.96 – 16.32
14.96 – 16.32
3.52
3.52
98
98
Cooling
2.84
2.84
Energy efficiency class ∗
Energy rating ∗∗
Running current
Power consumption
Power factor
C
C
—
—
Electrical
characteristics
(A)
(kW)
(%)
13.35 – 14.56
13.35 – 14.56
3.14
98
3.14
98
Heating
Fan
COP
3.57
B
3.57
B
Energy efficiency class ∗
Energy rating ∗∗
—
—
Turbo fan
13.3 / 11.2 / 9.1
60
Fan unit
Standard air flow H/M/L
Motor
(m³/min.)
(W)
Sound pressure level
Sound power level
H/M/L
H/M/L
(dB•A)
43 / 39 / 34
58 / 54 / 49
(dB•A)
Outdoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
Standard length
(m)
(m)
(m)
(m)
(m)
7.5
Min. length
5.0
Outer
Max. total length
50
dimension
Outdoor lower
Outdoor higher
30
Height
difference
30
Propeller fan
75
Fan
Fan unit
Standard air flow volume
Motor
(m³/min.)
(W)
100
63
Main
(mm)
15.9
12.7
Gas side
Sub
(mm)
Connecting
pipe
Main
(mm)
9.5
Liquid side
Sub
(mm)
6.4
Sound pressure level
Sound power level
Cooling/Heating
Cooling/Heating
(dB•A)
(dB•A)
53 / 54
70 / 71
∗ : IEC standard, ∗∗ : AS standard
– 7 –
<Triple type>
Indoor unit 1
Indoor unit 2
Indoor unit 3
Outdoor unit
RAV-SM562MUT-E
RAV-SM562MUT-E
RAV-SM562MUT-E
RAV-SM1603AT-E
14.0
Model
Cooling capacity
Heating capacity
(kW)
(kW)
16.0
Indoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
Running current
(A)
(kW)
(%)
23.88 – 21.89
Power consumption
Power factor
4.99
Cooling
95
EER
2.81
Energy efficiency class ∗
Running current
Power consumption
Power factor
C
22.44 – 20.57
4.69
Electrical
characteristics
(A)
(kW)
(%)
Heating
Fan
95
COP
3.41
Energy efficiency class ∗
B
Turbo fan
13.3 / 11.2 / 9.1
60
Fan unit
Standard air flow H/M/L
Motor
(m³/min.)
(W)
Sound pressure level
Sound power level
H/M/L
H/M/L
(dB•A)
(dB•A)
43 / 39 / 34
58 / 54 / 49
Outdoor unit
Power supply
1 phase 230V (220 – 240V) 50Hz
Standard length
(m)
(m)
(m)
(m)
(m)
7.5
5.0
Min. length
Outer dimension Max. total length
50
Outdoor lower
Outdoor higher
30
Height
difference
30
Fan
Propeller fan
103
Fan unit
Standard air flow volume
(m³/min.)
(W)
Motor
100 + 100
15.9
Main
(mm)
Gas side
Sub
(mm)
12.7
Connecting pipe
Main
(mm)
9.5
Liquid side
Sub
(mm)
6.4
Sound pressure level
Sound power level
Cooling/Heating
Cooling/Heating
(dB•A)
(dB•A)
51 / 53
68 / 70
∗ : IEC standard
– 8 –
1-2. Outdoor Unit
<Super Digital Inverter>
Model name
Outdoor unit
RAV-SP 562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E
1 phase 230V (220 – 240V) 50Hz
(Power exclusive to outdoor is required.)
Power supply
Type
Motor
Pole
Hermetic compressor
Compressor
(kW)
(kg)
2
4
2
4
3.75
4
3.75
4
Refrigerant charged
Refrigerant control
1.5
2.1
3.1
3.1
Pulse motor valve
Standard length
Max. total length
(m)
(m)
7.5
50
7.5
50
7.5
75
7.5
75
Inter
connecting pipe
Additional refrigerant charge
under long piping connector
20g/m
(21m to 50m)
40g/m
(31m to 50m)
40g/m
(31m to 75m)
40g/m
(31m to 75m)
Outdoor lower
Height
(m)
(m)
30
30
30
30
30
30
30
30
difference
Outdoor higher
Height
(mm)
(mm)
(mm)
795
900
320
795
900
320
1340
900
320
1340
900
320
Outer dimension Width
Depth
Appearance
Total weight
Heat exchanger
Fan
Silky shade (Muncel 1Y8.5/0.5)
(kg)
55
62
93
93
Finned tube
Propeller fan
Fan unit
Standard air flow
(m³/h)
(W)
57
63
57
63
101
103
100 + 100
15.9
Motor
100 + 100
15.9
Gas side
Liquid side
(mm)
(mm)
(dB•A)
(dB•A)
(°C)
12.7
6.4
15.9
9.5
Connecting pipe
9.5
9.5
Sound pressure level
Cooling/Heating
Cooling/Heating
46 / 47
63 / 64
47 / 49
64 / 66
49 / 50
66 / 67
51 / 52
68 / 69
Sound power level
Outside air temperature, Cooling
Outside air temperature, Heating
43 to –15°C
(°C)
15 to –15°C
15 to –20°C
– 9 –
Model name
Outdoor unit
RAV-SP404AT(Z)(ZG)-E
RAV-SP454AT(Z)(ZG)-E
1 phase 230V (220 – 240V) 50Hz
Power supply
(Power exclusive to outdoor is required.)
Hermetic compressor
Type
Motor
Pole
Compressor
(kW)
(kg)
1.1
4
1.1
4
Refrigerant charged
Refrigerant control
1.0
1.0
Pulse motor valve
Standard length
Max. total length
(m)
(m)
7.5
30
7.5
30
Inter
connecting pipe
Additional refrigerant charge
under long piping connector
20g/m (21m to 30m)
Outdoor lower
Height
(m)
(m)
30
30
30
30
difference
Outdoor higher
Height
(mm)
(mm)
(mm)
550
780
290
550
780
290
Outer dimension Width
Depth
Appearance
Total weight
Heat exchanger
Fan
Silky shade (Muncel 1Y8.5/0.5)
(kg)
40
40
Finned tube
Propeller fan
Fan unit
Standard air flow
(m³/h)
(W)
40
43
40
43
Motor
Gas side
Liquid side
(mm)
(mm)
(dB•A)
(dB•A)
(°C)
12.7
6.4
12.7
6.4
Connecting pipe
Sound pressure level
Cooling/Heating
Cooling/Heating
45 / 47
62 / 64
45 / 47
62 / 64
Sound power level
Outside air temperature, Cooling
Outside air temperature, Heating
43 to –15°C
15 to –15°C
(°C)
– 10 –
1-3. Operation Characteristic Curve
<Digital Inverter>
RAV-SM562MUT-E / RAV-SM562AT-E
<Cooling>
<Heating>
10
8
10
8
6
6
4
4
• Conditions
Indoor : DB27˚C/WB19˚C
Outdoor : DB35˚C
Air flow : High
Pipe length : 7.5m
230V
• Conditions
Indoor : DB20˚C
Outdoor : DB7˚C/WB6˚C
Air flow : High
Pipe length : 7.5m
230V
2
0
2
0
0
0
20
40
60 70 80
100
20
40
60
80 90 100
Compressor speed (rps)
Compressor speed (rps)
<Super Digital Inverter>
RAV-SM562MUT-E / RAV-SP562AT-E
<Cooling>
<Heating>
12
10
10
8
8
6
6
4
• Conditions
Indoor : DB27˚C/WB19˚C
• Conditions
Indoor : DB20˚C
4
Outdoor : DB35˚C
Air flow : High
Pipe length : 7.5m
230V
Outdoor : DB7˚C/WB6˚C
2
0
Air flow : High
Pipe length : 7.5m
230V
2
0
0
0
20
40 50 60 70 80
100
20
40
60 70 80 90 100
Compressor speed (rps)
Compressor speed (rps)
– 11 –
<Super Digital Inverter>
RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E
RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E
<Cooling>
<Heating>
14
16
14
12
10
8
12
10
8
SP45
SP45
SP40
6
6
SP40
4
4
• Conditions
• Conditions
Indoor : DB27˚C/WB19˚C
Outdoor : DB35˚C
Air flow : High
Pipe length : 7.5m
230V
Indoor : DB20˚C
Outdoor : DB7˚C/WB6˚C
Air flow : High
2
2
Pipe length : 7.5m
230V
0
0
0
20
40 50 60 70 80 90 100
0
20
40
60
80 90 100
120
Compressor speed (rps)
Compressor speed (rps)
– 12 –
1-4. Capacity Variation Ratio According toTemperature
RAV-SP404AT-E, RAV-SP404ATZ-E, RAV-SP404ATZG-E
RAV-SP454AT-E, RAV-SP454ATZ-E, RAV-SP454ATZG-E
<Cooling>
<Heating>
105
100
95
90
85
80
75
70
65
60
55
50
120
110
100
90
80
70
60
50
40
30
20
10
0
• Conditions
• Conditions
Indoor : DB20˚C
Indoor air flow : High
Pipe length : 7.5m
Indoor : DB27˚C/WB19˚C
Indoor air flow : High
Pipe length : 7.5m
32 33 34 35 36 37 38 39 40 41 42 43
-20-18-16-14-12-10 -8 -6 -4 -2
0
2
4
6
8 10
Outdoor temp. (˚C)
Outdoor temp. (˚C)
RAV-SP562AT-E, RAV-SM563AT-E
<Cooling>
<Heating>
120
110
100
90
80
70
60
50
40
30
20
10
0
105
100
95
90
85
80
75
70
65
60
• Conditions
Indoor : DB20˚C
• Conditions
Indoor : DB27˚C/WB19˚C
55
50
Indoor air flow : High
Pipe length : 7.5m
Indoor air flow : High
Pipe length : 7.5m
32 33 34 35 36 37 38 39 40 41 42 43
-20-18-16-14-12-10 -8 -6 -4 -2
0
2
4
6
8 10
Outdoor temp. (˚C)
Outdoor temp. (˚C)
– 13 –
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)
2-1. Indoor Unit
200
595 to 660 Ceiling open dimension
1000 or more
Check port
(
450)
Check port
(ꢀ 450)
Check port
(
450)
Obustacle
Drain-up standing-up size
Indoor unit
1000 or more
Bottom face
of ceiling
Note)
As ABS is used for the drain discharge port of the main unit,
the vinyl chlor paste cannot be used.
Use the flexible hose (Band fix) included in the package.
Space required for
installation and servicing
• Wired remote controller
(RBC-AMT32E)
120
16
142
64
368.5
268
27
Bottom face
Knockout for flesh
air intake Ø100
of ceiling
145.5
93
220.5
700 Panel external dimension
595 to 660 Ceiling open dimension
525 Hanging bolt pitch
Drain discharge port
145.5
134
63
Hanging bolt
M10 or W3/8
local arrange
Bottom face
of ceiling
105 70
Ceiling panel
Ø162
Wiring
connection
port
Ø162
Refrigerant pipe
(Liquid) Ø6.4
320.5
575 Unit external dimension
Electric parts box
55
For branch duct knockout
square hole Ø150
70 105 93
139.5
For branch ductt
knockout square
hole Ø150
190.5
Refrigerant pipe
(Gas) Ø12.7
Bottom face of ceiling
– 14 –
RBC-TWP30E2, RBC-TWP50E2 (SimultaneousTwin)
Inner diameter Ø C
Inner
diameter Ø D
Inner
diameter Ø D
A
Model (RBC-)
A
B
C
D
Liquid side
Gas side
36
43
34
44
14
23
14
21
Ø9.5
Ø15.9
Ø9.5
Ø15.9
Ø6.4
TWP30E2
TWP50E2
Ø12.7
Ø9.5
Liquid side
Gas side
Ø15.9
– 15 –
RBC-TRP100E (SimultaneousTriple)
<Gas side>
Header assembly
300
80
Inner diameter
Ø15.9
100
80
<Liquid side>
Branch pipe assembly
100
35
80
80
Inner diameter
Ø9.52
Insulator
Gas side socket
Liquid side socket
Ø15.9
Ø12.7
Ø9.5
Ø6.4
Ø15.9
Ø25.4
Ø9.5
Ø12.7
(External
diameter)
(External
diameter)
(External
diameter)
(External
diameter)
3 pcs.
1 pc.
3 pcs.
1 pc.
– 16 –
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM
3-1. Indoor Unit
• Single type
(Combination of one indoor unit and
one outdoor unit)
Distributor
(Strainer
incorporated)
Indoor unit
TCJ sensor
Air heat
exchanger
TC sensor
Refrigerant pipe
at liquid side
Outer diameter Ø6.4
Refrigerant pipe
at gas side
Outer diameter Ø12.7
Heating time
Cooling time
To outdoor unit
To outdoor unit
• Twin type (Combination of two indoor units and one outdoor unit)
RAV-SM562MUT-E
RAV-SM562MUT-E
Indoor A unit
Indoor B unit
Distributor
(Strainer
incorporated)
Distributor
(Strainer
incorporated)
TCJ sensor
TCJ sensor
Air heat
exchanger
Air heat
exchanger
TC sensor
TC sensor
Refrigerant pipe
at liquid side
Outer diameter Ø6.4
Refrigerant pipe
Refrigerant pipe
at liquid side
Outer diameter Ø6.4
Refrigerant pipe
at gas side
at gas side
Outer diameter Ø12.7
Outer diameter Ø12.7
Branch pipe
Branch pipe
Refrigerant pipeat liquid side
Outer diameter Ø9.5
Refrigerant pipeat gas side
Outer diameter Ø15.9
Heating time
Cooling time
To outdoor unit
To outdoor unit
• Triple type (Combination of three indoor units and one outdoor unit)
RAV-SM562MUT-E
RAV-SM562MUT-E
RAV-SM562MUT-E
Indoor A unit
Indoor B unit
Indoor C unit
Distributor
(Strainer
incorporated)
Distributor
(Strainer
incorporated)
Distributor
(Strainer
incorporated)
TCJ sensor
TCJ sensor
TCJ sensor
Air heat
exchanger
Air heat
exchanger
Air heat
exchanger
TC sensor
TC sensor
TC sensor
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
Refrigerant pipe
at liquid side
Outer diameter
Ø6.4
at gas side
Outer diameter
Ø12.7
at liquid side
Outer diameter
Ø6.4
at gas side
Outer diameter
Ø12.7
at liquid side
Outer diameter
Ø6.4
at gas side
Outer diameter
Ø12.7
Distributor
Distributor
Refrigerant
Refrigerant
pipeat liquid side
pipeat gas side
Outer diameter Ø9.5
Outer diameter Ø15.9
Heating time
Cooling time
To outdoor unit
To outdoor unit
– 17 –
3-2. Outdoor Unit
RAV-SM562MUT-E / RAV-SP562AT-E
Pd
Ps
Packed valve
Packed valve
Outer dia. Ø12.7
Outer dia. Ø6.4
Modulating
(PMV)
Strainer
TS sensor
(SKV-18D26)
TO sensor
TD sensor
Strainer
4-way valve
(STF-0213Z)
TE
Capillary
Ø3×Ø2×
L530
Muffler
sensor
Accumulator
(1500cc)
Ø25 × L210
Heat exchangerØ8
Ø25 × L160
Rotary compressor
1 row 30 stages
FP1.3 flat fin
(DA220A2F-20L)
Outdoor unit
R410A 1.5 kg
Cooling
Heating
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Pressure
Compressor
revolutions per
second (rps)
Indoor heat Outdoor heat
Indoor
fan
Discharge
Suction
(MPa)
exchanger
exchanger
Pd
Ps
(TD)
75
(TS)
15
20
5
(TC)
10
16
2
(TE)
38
Indoor Outdoor
∗
Standard
2.71
3.48
1.92
2.22
3.47
1.79
1.03
1.16
0.74
0.72
1.16
0.25
43
HIGH
HIGH
LOW
HIGH
LOW
HIGH
27/19
32/24
18/15.5
20/–
35/–
43/–
Cooling Overload
Low load
81
51
44
24
41
41
70
34
11
–5/–
Standard
62
6
38
55
30
2
7/6
Heating Overload
Low load
81
20
–16
15
30/–
24/18
–20/(70%)
71
–18
15/–
∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp
meter becomes 2 times of No. of compressor revolutions (rps).
– 18 –
RAV-SM562MUT-E / RAV-SM562AT-E
Packed valve
Packed valve
Outer dia. Ø12.7
Outer dia. Ø6.4
PMV
(Pulse Motor Valve)
(CAM-B30YGTF-1)
TS sensor
TO sensor
2-step muffler
Ø19 .05 × 200L
TD sensor
Strainer
TE
sensor
4-way valve
(STF-0108Z)
Muffler
Ø19 × L160
Heat exchanger Ø8 ripple,
2 rows, 14 steps
FP1.3 flat fin
Distributor
Rotary compressor
(DA150A1F-20F)
Outdoor unit
R410A 1.0 kg
Cooling
Heating
Pressure
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Compressor
revolutions per
second (rps)
∗
Indoor heat Outdoor heat
Indoor
fan
(MPa)
(kg/cm²G) Discharge Suction
exchanger
exchanger
Pd
Ps
Pd
Ps
(TD)
85
(TS)
14
26
7
(TC)
12
17
5
(TE)
48
Indoor Outdoor
Standard 3.50 0.97 35.7
9.9
70
70
50
97
95
98
HIGH
HIGH
27/19
32/24
35/–
43/–
Cooling Overload 3.90 1.08 39.8 11.0
93
54
Low load 1.90 0.70 19.4
Standard 2.31 0.61 13.6
7.1
6.2
9.1
2.6
48
30
LOW 18/15.5
–5/–
87
5
40
47
31
1
HIGH
LOW
HIGH
20/–
28/–
15/–
7/6
Heating Overload 2.86 0.89 29.2
Low load 1.86 0.25 19.0
86
17
–14
11
24/18
–10/(70%)
69
–15
∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp
meter becomes 2 times of No. of compressor revolutions (rps).
– 19 –
RAV-SM402MUT-E / RAV-SP404AT-E
RAV-SM454MUT-E / RAV-SP454AT-E
Packed valve
Packed valve
Outer dia. Ø12.7
Outer dia. Ø6.4
PMV
TS sensor
(Pulse Motor Valve)
(CAM-B30YGTF-2)
TO sensor
2-step muffler
Ø19.05 × 200L
TD sensor
Strainer
4-way valve
(STF-0108Z)
TE
sensor
Muffler
Ø19 × L160
Heat exchanger Ø8 ripple,
2 rows, 14 steps
FP1.3 flat fin
Distributor
Rotary compressor
(DA150A1F-20F)
R410A 1.0 kg
Cooling
Heating
RAV-SP404AT-E
Pressure
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Compressor
Indoor heat Outdoor heat drive revolution Indoor
(MPa)
(kg/cm²g)
Discharge
Suction
exchanger
exchanger
frequency
fan
(rps)
Pd
Ps
Pd
Ps
(TD)
61
(TS)
12
14
4
(TC)
11
15
2
(TE)
43
50
8
Indoor Outdoor
Standard
Cooling Overload
Low load
2.68 0.94 27.3
9.6
47
50
44
49
49
90
HIGH
HIGH
LOW
HIGH
LOW
HIGH
27/19
32/24
18/15.5
20/–
35/–
43/–
–5/–
7/6
3.23 1.16 32.9 11.8
77
1.34 0.70 13.7
2.38 0.70 24.3
7.1
7.1
36
Standard
65
7
39
54
32
4
Heating Overload
Low load
3.39 1.03 34.6 10.5
1.95 0.26 19.9 2.7
83
20
–17
16
–19
30/–
24/18
–15/–
90
15/–
∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp
meter becomes 2 times of No. of compressor revolutions (rps).
RAV-SP454AT-E
Pressure
(MPa) (kg/cm²g)
Pipe surface temperature (°C)
Indoor/Outdoor
temp. conditions
(DB/WB) (°C)
Compressor
Indoor heat Outdoor heat drive revolution Indoor
Discharge
Suction
exchanger
exchanger
frequency
fan
(rps)
Pd
Ps
Pd
Ps
(TD)
68
(TS)
11
14
4
(TC)
10
15
2
(TE)
41
51
8
Indoor Outdoor
Standard
Cooling Overload
Low load
2.81 0.89 28.7
9.1
53
53
44
56
49
98
HIGH
HIGH
LOW
HIGH
LOW
HIGH
27/19
32/24
18/15.5
20/–
35/–
43/–
–5/–
7/6
3.24 1.16 33.0 11.8
78
1.34 0.70 13.7
2.53 0.68 25.8
7.1
6.9
36
Standard
70
7
41
54
33
4
Heating Overload
Low load
3.39 1.03 34.6 10.5
2.00 0.25 20.4 2.6
83
20
–17
16
–19
30/–
24/18
–15/–
92
15/–
∗ This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp
meter becomes 2 times of No. of compressor revolutions (rps).
– 20 –
4. WIRING DIAGRAM
4-1. Indoor Unit
4-1-1. Compact 4-way CassetteType
TA
TCJ
TC
Connection interface (option)
(EXCT)
1 2
1 2
1 2
1 2
1 2
1 2
CN50
(WHI)
CN51
(RED)
1 2 3
CN80
(GRN)
1 2
CN73
(RED)
1 2
CN70
(WHI)
CN34
(RED)
FS
CN104 CN102 CN101
(YEL) (RED) (BLK)
5 5
4 4
3 3
2 2
1 1
5 5
3 3
2 2
1 1
4 4
P.C.
Board
3 3
2 2
1 1
MCC-1402
5 5
4 4
3 3
2 2
1 1
LM1
LM2
1 2
1 2
CN40
(BLU)
6
5
4
3
2
1
CN33
(WHI)
CN60
(WHI)
U3 U4
Control P.C. Board for
Indoor Unit
5 5
4 4
3 3
2 2
1 1
5 5
4 4
3 3
2 2
1 1
5 5
4 4
3 3
2 2
1 1
Terminal for
central remote
controller
CN32
(WHI)
2
1
DC20V
DC15V
DC12V
DC7V
(FAN DRIVE)
6
5
4
3
2
1
Power
supply
circuit
CN61
(YEL)
Fuse
F302
T3.15A
250V~
CN333
(WHI)
5 5
4 4
3 3
2 2
1 1
BLK
WHI
Motor
drive
circuit
CN001
(WHI)
2 2
1 1
+
–
FM
Adapter for
Wireless Remote
Controller
CN334
(WHI)
3
2
1
CN309
(YEL)
~
~
1 1
2 2
3 3
4 4
5 5
BLK
BLK
3 3
2 2
1 1
CN41
(BLU)
B
A
B
A
Fuse
F301
RY
RY
WHI
302
303
250V~
T6.3A
WHI
P301
BLK
CN68
(BLU)
1 2 3
1 2 3
1 2 3
CN304
(GRY)
1 2 3 4 5
1 2 3 4 5
1 2
CN66
(WHI)
CN67
(BLK)
Wired Renote
Controller
RED WHI BLK
DP
1 2 3
1 2 3
Color
Indoor unit
earth screw
Identification
BLK : BLACK
BLU : BLUE
NOTE
FM : Fan motor
TA : Indoor temp. sensor
TC : Temp. sensor
RED : RED
GRY : GRAY
PNK : PINK
GRN : GREEN
WHI : WHITE
BRN : BROWN
ORN : ORANGE
YEL : YELLOW
Outdoor unit
earth screw
Serial
TCJ : Temp. sensor
LM1,LM2 : Louver motor
DP : Drain pump motor
FS : Float switch
L N
signal
Single phase
220 to 240V
50Hz
RY302 : Drain control relay
– 21 –
• Single type
• Twin type
Power supply 220-240V
Single phase 50Hz
Power supply 220-240V
Single phase 50Hz
Outdoor unit
1 2 3
Outdoor unit
1 2 3
L
L
N
N
1
2
3
Indoor
unit
A B
1
2
3
1
2
3
Indoor unit
No.1 (Master)
A B
Indoor unit
No.2 (Sub)
A B
Earth
screw
A B
Wired remote controller
A B
Wired remote controller
• Triple type
Power supply 220-240V
Single phase 50Hz
Outdoor unit
1 2 3
L
N
1
2
3
1
2
3
1
2
3
Indoor unit
No.1 (Header)
A B
Indoor unit
No.2 (Follower)
A B
Indoor unit
No.3 (Follower)
A B
Earth
screw
Earth
screw
Earth
screw
Earth
screw
Earth
screw
Earth
screw
Earth
screw
A B
Wired remote controller
Notes)
1.
: indicates a terminal block
2. Broken line and chain line indicate wiring at local site.
3. For the inner wiring diagram of the outdoor unit and the indoor unit, refer to the wiring diagram of each model.
4. There is no polarity. It is no problem that the remote controller is connected to the indoor unit terminal block A
and B reversely.
5. When using a wireless remote controller, connection of the remote controller to A and B terminal blocks are
unnecessary. (Wire connection between indoor unit No.1 and No.2 is necessary.)
– 22 –
5. SPECIFICATIONS OF ELECTRICAL PARTS
5-1. Indoor Unit
No.
Parts name
Type
Specifications
Output (Rated) 60 W, 220–240 V
10 kΩ at 25°C
1
2
3
4
5
6
Fan motor (for indoor)
SWF-230-60-1R
155 mm
Thermo. sensor (TA-sensor)
Heat exchanger sensor (TCJ-sensor)
Heat exchanger sensor (TC-sensor)
Float switch
Ø6 mm, 1200 mm
Ø6 mm, 1200 mm
FS-0218-106
ADP-1406
10 kΩ at 25°C
10 kΩ at 25°C
Drain pump motor
– 23 –
6. REFRIGERANT R410A
This air conditioner adopts the new refrigerant HFC
(R410A) which does not damage the ozone layer.
6) When an air conditioning system charged with a
large volume of refrigerant is installed in a small
room, it is necessary to exercise care so that,
even when refrigerant leaks, its concentration
does not exceed the marginal level.
The working pressure of the new refrigerant R410A
is 1.6 times higher than conventional refrigerant
(R22).The refrigerating oil is also changed in
accordance with change of refrigerant, so be careful
that water, dust, and existing refrigerant or refrigerat-
ing oil are not entered in the refrigerant cycle of the
air conditioner using the new refrigerant during
installation work or servicing time.
If the refrigerant gas leakage occurs and its
concentration exceeds the marginal level, an
oxygen starvation accident may result.
7) Be sure to carry out installation or removal
according to the installation manual.
The next section describes the precautions for air
conditioner using the new refrigerant. Conforming to
contents of the next section together with the
general cautions included in this manual, perform
the correct and safe work.
Improper installation may cause refrigeration
trouble, water leakage, electric shock, fire, etc.
8) Unauthorized modifications to the air conditioner
may be dangerous. If a breakdown occurs please
call a qualified air conditioner technician or
electrician.
6-1. Safety During Installation/Servicing
Improper repair’s may result in water leakage,
electric shock and fire, etc.
As R410A’s pressure is about 1.6 times higher than
that of R22, improper installation/servicing may
cause a serious trouble. By using tools and materi-
als exclusive for R410A, it is necessary to carry out
installation/servicing safely while taking the following
precautions into consideration.
6-2. Refrigerant Piping Installation
6-2-1. Piping Materials and Joints Used
For the refrigerant piping installation, copper pipes
and joints are mainly used. Copper pipes and joints
suitable for the refrigerant must be chosen and
installed. Furthermore, it is necessary to use clean
copper pipes and joints whose interior surfaces are
less affected by contaminants.
1) Never use refrigerant other than R410A in an air
conditioner which is designed to operate with
R410A.
If other refrigerant than R410A is mixed, pressure
in the refrigeration cycle becomes abnormally
high, and it may cause personal injury, etc. by a
rupture.
1) Copper Pipes
It is necessary to use seamless copper pipes
which are made of either copper or copper alloy
and it is desirable that the amount of residual oil
is less than 40 mg/10 m. Do not use copper
pipes having a collapsed, deformed or discolored
portion (especially on the interior surface).
Otherwise, the expansion valve or capillary tube
may become blocked with contaminants.
2) Confirm the used refrigerant name, and use tools
and materials exclusive for the refrigerant R410A.
The refrigerant name R410A is indicated on the
visible place of the outdoor unit of the air condi-
tioner using R410A as refrigerant.To prevent
mischarging, the diameter of the service port
differs from that of R22.
3) If a refrigeration gas leakage occurs during
installation/servicing, be sure to ventilate fully.
As an air conditioner using R410A incurs pres-
sure higher than when using R22, it is necessary
to choose adequate materials.
If the refrigerant gas comes into contact with fire,
a poisonous gas may occur.
Thicknesses of copper pipes used with R410A
are as shown in Table 6-2-1. Never use copper
pipes thinner than 0.8 mm even when it is
available on the market.
4) When installing or removing an air conditioner, do
not allow air or moisture to remain in the refrig-
eration cycle. Otherwise, pressure in the refrig-
eration cycle may become abnormally high so
that a rupture or personal injury may be caused.
5) After completion of installation work, check to
make sure that there is no refrigeration gas
leakage.
If the refrigerant gas leaks into the room, coming
into contact with fire in the fan-driven heater,
space heater, etc., a poisonous gas may occur.
– 24 –
Table 6-2-1 Thicknesses of annealed copper pipes
Thickness (mm)
Nominal diameter
Outer diameter (mm)
R410A
0.80
R22
0.80
0.80
0.80
1.00
1/4
3/8
1/2
5/8
6.35
9.52
0.80
12.70
15.88
0.80
1.00
2) Joints
For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants.
a) Flare Joints
Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds
20 mm. In such a case, socket joints can be used.
Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 6-2-3 to 6-2-6 below.
b) Socket Joints
Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose
diameter is larger than 20 mm.
Thicknesses of socket joints are as shown in Table 6-2-2.
Table 6-2-2 Minimum thicknesses of socket joints
Reference outer diameter of
copper pipe jointed (mm)
Minimum joint thickness
(mm)
Nominal diameter
1/4
3/8
1/2
5/8
6.35
9.52
0.50
0.60
0.70
0.80
12.70
15.88
6-2-2. Processing of Piping Materials
When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not
enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used,
and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils
whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any
other cover.
1) Flare Processing Procedures and Precautions
a) Cutting the Pipe
By means of a pipe cutter, slowly cut the pipe so that it is not deformed.
b) Removing Burrs and Chips
If the flared section has chips or burrs, refrigerant leakage may occur.
Carefully remove all burrs and clean the cut surface before installation.
– 25 –
c) Insertion of Flare Nut
d) Flare Processing
Flare processing dimensions differ according
to the type of flare tool. When using a conven-
tional flare tool, be sure to secure “dimension
A” by using a gauge for size adjustment.
Make certain that a clamp bar and copper
pipe have been cleaned.
By means of the clamp bar, perform the flare
processing correctly.
ØD
A
Use either a flare tool for R410A or conven-
tional flare tool.
Fig. 6-2-1 Flare processing dimensions
Table 6-2-3 Dimensions related to flare processing for R410A
A (mm)
Conventional flare tool
Outer
diameter
(mm)
Nominal
diameter
Thickness
(mm)
Flare tool for
R410A clutch type
0 to 0.5
Clutch type
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
1.0 to 1.5
Wing nut type
1.5 to 2.0
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
0 to 0.5
1.5 to 2.0
12.70
15.88
0 to 0.5
2.0 to 2.5
0 to 0.5
2.0 to 2.5
Table 6-2-4 Dimensions related to flare processing for R22
A (mm)
Outer
diameter
(mm)
Nominal
diameter
Thickness
(mm)
Flare tool for
R22 clutch type
0 to 0.5
Conventional flare tool
Clutch type
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
0.5 to 1.0
Wing nut type
1.0 to 1.5
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
0 to 0.5
1.0 to 1.5
12.70
15.88
0 to 0.5
1.5 to 2.0
0 to 0.5
1.5 to 2.0
Table 6-2-5 Flare and flare nut dimensions for R410A
Dimension (mm)
Nominal
diameter
Outer diameter
(mm)
Thickness
(mm)
Flare nut
width (mm)
A
B
C
D
1/4
3/8
1/2
5/8
6.35
9.52
0.8
0.8
0.8
1.0
9.1
9.2
6.5
13
20
23
25
17
22
26
29
13.2
16.6
19.7
13.5
16.0
19.0
9.7
12.70
15.88
12.9
16.0
– 26 –
Table 6-2-6 Flare and flare nut dimensions for R22
Dimension (mm)
Nominal
diameter
Outer diameter
Thickness
(mm)
Flare nut width
(mm)
(mm)
A
B
C
D
1/4
3/8
1/2
5/8
3/4
6.35
9.52
0.8
0.8
0.8
1.0
1.0
9.0
9.2
6.5
13
20
20
23
34
17
22
24
27
36
13.0
16.2
19.4
23.3
13.5
16.0
19.0
24.0
9.7
12.70
15.88
19.05
12.9
16.0
19.2
D
B
A
C
Fig. 6-2-2 Relations between flare nut and flare seal surface
2) Flare Connecting Procedures and Precautions
a) Make sure that the flare and union portions do not have any scar or dust, etc.
b) Correctly align the processed flare surface with the union axis.
c) Tighten the flare with designated torque by means of a torque wrench.The tightening torque for R410A is
the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur.
When it is strong, the flare nut may crack and may be made non-removable. When choosing the tightening
torque, comply with values designated by manufacturers.Table 6-2-7 shows reference values.
Note)
When applying oil to the flare surface, be sure to use oil designated by the manufacturer.
If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.
Table 6-2-7 Tightening torque of flare for R410A [Reference values]
Tightening torque of torque
wrenches available on the market
N•m (kgf•cm)
Nominal
diameter
Outer diameter
(mm)
Tightening torque
N•m (kgf•cm)
1/4
3/8
1/2
5/8
6.35
9.52
14 to 18 (140 to 180)
33 to 42 (330 to 420)
50 to 62 (500 to 620)
63 to 77 (630 to 770)
16 (160), 18 (180)
42 (420)
12.70
15.88
55 (550)
65 (650)
– 27 –
6-3. Tools
6-3-1. RequiredTools
The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to
prevent mixing of other refrigerant.To reinforce the pressure-resisting strength, flare processing dimensions and
opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.
The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge,
clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))
2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)
3) Tools commonly used for R410A and for conventional refrigerant (R22)
The table below shows the tools exclusive for R410A and their interchangeability.
Tools exclusive for R410A (The following tools for R410A are required.)
Tools whose specifications are changed for R410A and their interchangeability
R410A
air conditioner installation
Conventional air
conditioner installation
No.
Used tool
Usage
Existence of
new equipment
for R410A
Whether conven- Whether new equipment
tional equipment
can be used
can be used with
conventional refrigerant
Flare tool
Pipe flaring
Ye s
*(Note 1)
‚
¡
Copper pipe gauge for
adjusting projection
margin
Flaring by conventional
flare tool
Ye s
*(Note 1)
*(Note 1)
Torque wrench
Connection of flare nut
Ye s
Ye s
×
×
×
×
ƒ
„
ꢀ
†
Gauge manifold
Charge hose
Evacuating, refrigerant
charge, run check, etc.
Vacuum pump adapter
Vacuum evacuating
Refrigerant charge
Ye s
Ye s
×
×
¡
¡
Electronic balance for
refrigerant charging
‡
Refrigerant cylinder
Leakage detector
Charging cylinder
Refrigerant charge
Gas leakage check
Refrigerant charge
Ye s
Ye s
×
×
×
×
¡
×
ˆ
‰
Š
(Note 2)
Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection
margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.
Note 2) Charging cylinder for R410A is being currently developed.
General tools (Conventional tools can be used.)
In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary
as the general tools.
4) Reamer
9) Hole core drill (Ø65)
1) Vacuum pump
Use vacuum pump by
attaching vacuum pump adapter.
5) Pipe bender
10) Hexagon wrench
(Opposite side 4mm)
6) Level vial
2) Torque wrench
3) Pipe cutter
11) Tape measure
12) Metal saw
7) Screwdriver (+, –)
8) Spanner or Monkey wrench
Also prepare the following equipments for other installation method and run check.
1) Clamp meter
2) Thermometer
3) Insulation resistance tester
4) Electroscope
– 28 –
6-4. Recharging of Refrigerant
When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the
following steps.
Recover the refrigerant, and check no refrigerant
remains in the equipment.
When the compound gauge’s pointer has indicated
–0.1 Mpa (–76 cmHg), place the handle Low in the
fully closed position, and turn off the vacuum pump’s
power switch.
Connect the charge hose to packed valve service
port at the outdoor unit’s gas side.
Keep the status as it is for 1 to 2 minutes, and ensure
that the compound gauge’s pointer does not return.
Connect the charge hose of the vacuum pump
adapter.
Set the refrigerant cylinder to the electronic balance,
connect the connecting hose to the cylinder and the
connecting port of the electronic balance, and charge
liquid refrigerant.
Open fully both packed valves at liquid and gas
sides.
Place the handle of the gauge manifold Low in the
fully opened position, and turn on the vacuum pump’s
power switch. Then, evacuating the refrigerant in the
cycle.
(For refrigerant charging, see the figure below.)
Never charge refrigerant exceeding the specified amount.
‚
ƒ
If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.
Do not carry out additional charging.
When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the
refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the
specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high
pressure, and may cause a rupture or personal injury.
(INDOOR unit)
(Liquid side)
(Gas side)
(OUTDOOR unit)
Opened
Closed
Refrigerant cylinder
(With siphon pipe)
Check valve
Open/Close valve
for charging
Service port
Electronic balance for refrigerant charging
Fig. 6-4-1 Configuration of refrigerant charging
– 29 –
Be sure to make setting so that liquid can be charged.
When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.
‚
It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant.
Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the
cylinder upside down if cylinder is not equipped with siphon.
[ Cylinder with siphon ]
[ Cylinder without siphon ]
Gauge manifold
Gauge manifold
OUTDOOR unit
OUTDOOR unit
c y l i n d e r
a n t i g e r R e f r
Refrigerant
cylinder
Electronic
balance
Electronic
balance
Siphon
R410A refrigerant is HFC mixed refrigerant.
Therefore, if it is charged with gas, the composi-
tion of the charged refrigerant changes and the
characteristics of the equipment varies.
Fig. 6-4-2
6-5. Brazing of Pipes
Phosphor bronze brazing filler tends to react
with sulfur and produce a fragile compound
water solution, which may cause a gas
leakage.Therefore, use any other type of
brazing filler at a hot spring resort, etc., and
coat the surface with a paint.
‚
6-5-1. Materials for Brazing
1) Silver brazing filler
Silver brazing filler is an alloy mainly composed
of silver and copper. It is used to join iron, copper
or copper alloy, and is relatively expensive though
it excels in solderability.
When performing brazing again at time of
servicing, use the same type of brazing filler.
2) Phosphor bronze brazing filler
Phosphor bronze brazing filler is generally used
to join copper or copper alloy.
6-5-2. Flux
3) Low temperature brazing filler
1) Reason why flux is necessary
Low temperature brazing filler is generally called
solder, and is an alloy of tin and lead. Since it is
weak in adhesive strength, do not use it for
refrigerant pipes.
• By removing the oxide film and any foreign
matter on the metal surface, it assists the flow
of brazing filler.
• In the brazing process, it prevents the metal
surface from being oxidized.
• By reducing the brazing filler's surface tension,
the brazing filler adheres better to the treated
metal.
– 30 –
2) Characteristics required for flux
6-5-3. Brazing
• Activated temperature of flux coincides with the
brazing temperature.
As brazing work requires sophisticated techniques,
experiences based upon a theoretical knowledge, it
must be performed by a person qualified.
• Due to a wide effective temperature range, flux
is hard to carbonize.
In order to prevent the oxide film from occurring in
the pipe interior during brazing, it is effective to
proceed with brazing while letting dry Nitrogen gas
(N2) flow.
• It is easy to remove slag after brazing.
• The corrosive action to the treated metal and
brazing filler is minimum.
• It excels in coating performance and is harm-
less to the human body.
Never use gas other than Nitrogen gas.
(1) Brazing method to prevent oxidation
As the flux works in a complicated manner as
described above, it is necessary to select an
adequate type of flux according to the type and
shape of treated metal, type of brazing filler and
brazing method, etc.
Attach a reducing valve and a flow-meter to
the Nitrogen gas cylinder.
‚
ƒ
Use a copper pipe to direct the piping mate-
rial, and attach a flow-meter to the cylinder.
3) Types of flux
Apply a seal onto the clearance between the
piping material and inserted copper pipe for
Nitrogen in order to prevent backflow of the
Nitrogen gas.
• Noncorrosive flux
Generally, it is a compound of borax and boric
acid.
It is effective in case where the brazing tem-
perature is higher than 800°C.
When the Nitrogen gas is flowing, be sure to
keep the piping end open.
„
ꢀ
• Activated flux
Adjust the flow rate of Nitrogen gas so that it
is lower than 0.05 m³/Hr or 0.02 MPa (0.2kgf/
cm²) by means of the reducing valve.
Most of fluxes generally used for silver brazing
are this type.
It features an increased oxide film removing
capability due to the addition of compounds
such as potassium fluoride, potassium chloride
and sodium fluoride to the borax-boric acid
compound.
After performing the steps above, keep the
Nitrogen gas flowing until the pipe cools
down to a certain extent (temperature at
which pipes are touchable with hands).
†
‡
Remove the flux completely after brazing.
4) Piping materials for brazing and used braz-
ing filler/flux
Piping
material
Used brazing
filler
Used
flux
Copper - Copper Phosphor copper Do not use
M
Copper - Iron
Iron - Iron
Silver
Silver
Paste flux
Vapor flux
Flow meter
Stop valve
Nitrogen gas
cylinder
From Nitrogen cylinder
Do not enter flux into the refrigeration cycle.
‚
When chlorine contained in the flux remains
within the pipe, the lubricating oil deteriorates.
Therefore, use a flux which does not contain
chlorine.
Pipe
Nitrogen
gas
When adding water to the flux, use water
which does not contain chlorine (e.g. distilled
water or ion-exchange water).
ƒ
„
Rubber plug
Remove the flux after brazing.
Fig. 6-5-1 Prevention of oxidation during brazing
– 31 –
6-6. Tolerance of Pipe Length and Pipe Head
n Twin system
Total length (L + a or L + b)
50 m
15 m
Pipe length
(one way)
Branch pipe length (a, b)
Maximum difference between indoor units
(b – a, or a - b)
10 m
Refrigerant pipe
specification
Between indoor units ( ∆ h)
0.5 m
30 m
Height
difference
Between indoor unit
When outdoor unit heigher (H)
and outdoor unit
When outdoor unit lower
(H)
30 m
Number of bent portions
10 m or less
Indoor unit A
Indoor unit B
∆h
Distributor
a
b
Branch pipe
Branch pipe
H
L
Main pipe
Outdoor unit
CAUTION
When planning a layout for Units A and B, comply with the following:
1. The lengths after branching (“a” and “b”) should be equal if feasible.
Install Units A and B so that the difference of the branching lengths becomes less than 10m if the lengths
cannot be equal due to the branch pipe position.
2. Install Units A and B on the same level.
If Units A and B cannot be installed on the same level, the difference in level should be limited to 0.5m or less.
3. Be certain to install Units A and B in the same room.
Units A and B cannot be operated independently each other.
– 32 –
n Triple system
Total length (L + a, L +b, L+c)
Branch pipe length (a, b, c)
50 m
15 m
Pipe length
(one way)
Maximum difference between indoor units
(|a – b|, |b – c|, |c – d|)
10 m
Refrigerant pipe
specification
Between indoor units ( ∆ h)
0.5 m
30 m
Height
difference
Between indoor unit
When outdoor unit heigher (H)
and outdoor unit
When outdoor unit lower
(H)
30 m
Number of bent portions
10 m or less
Indoor unit A
Indoor unit C
Indoor unit B
∆ h
Branch pipe
Branch pipe
b
Branch pipe
a
c
H
Distributor
L
Main pipe
Outdoor unit
CAUTION
When planning a layout for Units A, B and C, comply with the following:
1. The lengths after branching (“a” and “b”, “b” and “c”, “a” and “c”) should be equal if feasible.
Install Units A, B and C so that the difference of the branching lengths becomes less than 10m if the
lengths cannot be equal due to the branch pipe position.
2. Install Units A, B and C on the same level.
If Units A, B and C cannot be installed on the same level, the difference in level should be limited to 0.5 m
or less.
3. Be certain to install Units A and B and C in the same room. Units A, B and C cannot be operated indepen-
dently each other.
– 33 –
6-7. Additional Refrigerant Amount
n Twin system
<Formula for Calculating Additional Refrigerant Amount>
Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of
calculations by the following formula and operate the air conditioner as it is.
Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)
+ Branch piping additional refrigerant amount (kg)
= α × (L – 18) + γ × (a + b – 4)
α
γ
L
: Additional refrigerant amount per meter of actual main piping length (kg)
: Additional refrigerant amount per meter of actual branch piping length (kg)
: Actual length of main piping (m)
a, b : Actual length of branch piping (m)
Standard piping length
Main piping Branch piping
18 m 2 m
Connecting pipe diameter
Additional refrigerant amount per Meter (kg/m)
L
a
b
α
β
γ
Ø9.5
Ø6.4
Ø6.4
0.040
—
0.020
Indoor unit A
Indoor unit B
∆h
Distributor
b
a
Branch pipe
Branch pipe
H
L
Main pipe
Outdoor unit
CAUTION
1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other
specification on the nameplate put on the outdoor unit for recording.
2. Seal the correct amount of additional refrigerant in the system.
– 34 –
n Triple system
<Formula for Calculating Additional Refrigerant Amount>
Do not remove the refrigerant even if the additional refrigerant amount becomes minus result as a result of
calculations by the following formula and operate the air conditioner as it is.
Additional refrigerant amount (kg) = Main piping additional refrigerant amount (kg)
+ Branch piping additional refrigerant amount (kg)
= {α × (L – 28)} + {γ × (a + b + c – 6)}
α
γ
L
: Additional refrigerant amount per meter of actual main piping length (kg)
: Additional refrigerant amount per meter of actual branch piping length (kg)
: Actual length of main piping (m)
a, b, c : Actual length of branch piping (m)
Connecting pipe diameter
Additional refrigerant amount per Meter (kg/m)
L
a
b
c
α
β
γ
Ø9.5
Ø6.4
Ø6.4
Ø6.4
0.04
—
0.02
Indoor unit A
Indoor unit C
Indoor unit B
∆ h
Branch pipe
Branch pipe
b
Branch pipe
a
c
H
Distributor
L
Main pipe
Outdoor unit
CAUTION
1. Be certain to wire the additional refrigerant amount, pipe length (actual length), head and other
specification on the nameplate put on the outdoor unit for recording.
2. Seal the correct amount of additional refrigerant in the system.
– 35 –
6-8. Piping Materials and Sizes
n Twin system
Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40mg/10m or less in the
amount of oil stuck on inner walls of pipe and 0.8mm in pipe wall thickness for diameters for diameters 6.4,
9.5 and 12.7mm and 1.0mm, for diameter 15.9mm. Never use pipes of thin wall thickness such as 0.7mm.
In parentheres ( ) are wall thickness
Main pipe
Branch pipe
Main pipe
Ø15.9 (1.0)
Ø12.7 (0.8)
Ø9.5 (0.8)
Ø6.4 (0.8)
Gas side
Pipe side
Liquid side
Branch pipe
n Triple system
Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or less in the
amount of oil stuck on inner walls of pipe and 0.8 mm in pipe wall thickness for diameters 6.4, 9.5 and
12.7 mm and 1.0 mm, for diameter 15.9 mm. Never use pipes of thin wall thickness such as 0.7 mm.
<Between outdoor unit and distributor>
[Unit: mm]
Outdoor unit
Gas side
Ø15.9 (1.0)
Ø9.5 (0.8)
Main pipe
Liquid side
∗ ( ): Pipe wall thickness
<Between distributor and indoor unit>
[Unit: mm]
Indoor unit
SM56 type
Ø12.7 (0.8)
Ø6.4 (0.8)
Gas side
Branch pipe
Liquid side
∗ ( ): Pipe wall thickness
– 36 –
6-9. Branch Pipe
n Twin system
Now the refrigerant pipe is installed using branch pipes supplied as accessories.
• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.
• Fix the branch pipes onto a wall in a ceiling or onto a column.
• Provide a straight pipe longer than 500mm in length as the main piping of the branches.
OK
OK
Horizontal
Horizontal
NO GOOG
NO GOOG
Inclination
Inclination
6-10. Distributor
n Triple system
Now the refrigerant pipe is installed using distributor supplied as accessories.
• Bend and adjust the refrigerant piping so that the distributor and pipe after branching become horizontal.
• Fix the distributor onto a wall in a ceiling or onto a column.
• Provide a straight pipe longer than 500 mm in length as the main piping of the branches.
<How to install distributor>
Branch pipes are horizontal
and collective pipes are vertical
Branch pipes are horizontal
and collective pipes are vertical
Branch pipes and
collective pipes are horizontal
Branch pipes and
collective pipes are horizontal
Branch pipe
Collective pipe
Branch pipe
Collective pipe
<Gas pipe side>
<Liquid pipe side>
<Restrictions in length of the straight area of the branch pipe (main pipe side)>
Provide a straight area of 500 mm or more on the main pipe side of the branch pipe
(for both gas pipe and liquid pipe sides).
NO GOOG
Tilt
Be sure to install the pipes
horizontally after branching.
500 mm or more
500 mm or more
n Air Purging
For the complete information, read the installation manual for outdoor units of air conditioner.
– 37 –
7. CONTROL BLOCK DIAGRAM
7-1. Indoor Control Circuit
Main (Sub) master remote controller
Weekly timer
*1 Connection Interface is attached to
master unit.
Display
LCD
Function setup
LCD
Function setup
driver
(In case of group control operation)
CPU
CPU
*2 Weekly timer is not connectable to
the sub remote controller.
Display
Key switch
LED
Display
LCD
Key switch
CN2
CN1
DC5V
DC5V
Remote controller
Secondary
battery
Power
Power
circuit
communication
circuit
circuit
Central control remote controller
(Option)
2
*
Option
Option
Indoor unit
#1
A
B
#2
#3
A
B
A
B
Connection Interfase
(Option)
Indoor control P.C. board
(MCC-1402)
P.C. board
(MCC-1440)
Remote controller
communication
circuit
DC20V
EEPROM
U3
U4
TCC-LINK
communication
circuit
DC5V
DC12V
TA sensor
TC sensor
Same as
the left
Same as
the left
Duct type nothing
CPU
1
1
*
*
TCJ sensor
Float input
Louver
motor
Driver
Separately sold parts
for Ceiling type
Drain
pump
Outside output
Run
Warning Ready
Thermo. ON
Cool/Heat Fan
CPU
1
2
3
1
2
3
Fan motor
control
circuit
AC
Serial
Indoor
fan
motor
synchronous
send/receive
signal input circuit
circuit
Power circuit
Outdoor
unit
Outdoor
unit
DC280V
1 2 3
1 2 3
Wireless remote controller kit
Receiver P.C. board
Remote controller
communication circuit
Temporary
operation SW
Outdoor unit
Power
circuit
DC5V
CPU
Function
setup SW
Buzzer
Receive circuit
Display LED
– 38 –
7-2. Control Specifications
No.
Item
Outline of specifications
1) Distinction of outdoor units
Remarks
1
When power
supply is reset
When the power supply is reset, the outdoors are
distinguished, and control is exchanged according to
the distinguished result.
2) Setting of speed of the indoor fan/setting whether to
adjust air direction or not.
Based on EEPROM data, speed of the indoor fan or
setting whether to adjust air direction or not is se-
lected.
Air speed/
Air direction adjustment
2
Operation mode 1) Based on the operation mode selecting command
selection
from the remote controller, the operation mode is
selected.
Remote controller
Outline of control
command
STOP
FAN
Air conditioner stops.
Fan operation
COOL
DRY
Cooling operation
Dry operation
HEAT
AUTO
Heating operation
• COOL/HEAT operation mode
is automatically selected by Ta
and Ts for operation.
Ta : Room temperature
Ts : Setup temperature
Ta
(˚C)
COOL
Tsc : Setup temperature in
cooling operation
+1.5
(COOL ON)
Tsh : Setup temperature
+ Room temperature
control temperature
compensation
Tsc
or Tsh
(COOL OFF)
HEAT
-1.5
1) Judge the selection of COOL/HEAT mode as shown
in the figure above.
When 10 minutes passed after thermostat had
been turned off, the heating operation (Thermo
OFF) is exchanged to cooling operation if Tsh
exceeds +1.5 or more.
(COOL OFF) and (COOL ON) in the figure indicate
an example.
When 10 minutes passed after thermostat had
been turned off, the cooling operation (Thermo
OFF) is exchanged to heating operation if Tsc
exceeds –1.5 or less.
2) For the automatic capacity control after judgment of
COOL/HEAT, refer to item 4.
3) For the temperature correction of room temperature
control in automatic heating operation, refer to item 3.
– 39 –
No.
Item
Outline of specifications
Remarks
3
Room
temperature
control
1) Adjustment range Remote controller setup tem-
perature (°C)
COOL/
DRY
Heating
operation operation
Auto
Wired type
18 to 29
18 to 30
18 to 29
16 to 30
18 to 29
17 to 27
Wireless type
2) Using the item code 06, the setup temperature in
heating operation can be compensated.
Shift of suction tempera-
ture in heating operation
Setup data
0
2
4
6
Setup temp.
compensation
+0°C
+2°C
+4°C
+6°C
Setting at shipment
Setup data
2
4
5
Automatic
capacity control
(GA control)
1) Based on the difference between Ta and Ts, the
operation frequency is instructed to the outdoor unit.
Air speed
selection
1) Operation with (HH), (H), (L), or [AUTO] mode is
performed by the command from the remote controller.
HH > H > L > LL
2) When the air speed mode [AUTO] is selected, the air
speed varies by the difference between Ta and Ts.
<COOL>
Ta (˚C)
A
+3.0
B
C
D
HH
+2.5
+2.0
+1.5
+1.0
(HH)
H (HH)
H (HH)
L(H)
E
+0.5
Tsc
-0.5
L(H)
L(H)
L(L)
F
G
• Controlling operation in case when thermo of remote
controller works is same as a case when thermo of
the body works.
• If the air speed has been changed once, it is not
changed for 3 minutes. However when the air volume
is exchanged, the air speed changes.
• When cooling operation has started, the air speed
selects a downward slope, that is, the high position.
• If the temperature is just on the difference boundary,
the air speed does not change.
• Mode in the parentheses indicates one in automatic
cooling operation.
– 40 –
No.
Item
Outline of specifications
Remarks
5
Air speed
selection
<HEAT>
Ta (˚C)
L(L)
(Continued)
(-0.5) –1.0
(0)
Tsh
E
D
L(H)
H(H)
(+0.5) +1.0
H
(HH)
(+1.0) +2.0
(+1.5) +3.0
C
B
A
HH
(HH)
(+2.0) +4.0
Value in the parentheses indicates one when thermostat of
the remote controller works.
Value without parentheses indicates one when thermostat of
the body works.
• If the air speed has been changed once, it is not changed
for 1 minute. However when the air speed is exchanged, the
air speed changes.
• When heating operation has started, the air speed selects a
upward slope, that is, the high position.
• If the temperature is just on the difference boundary, the air
speed does not change.
• Mode in the parentheses indicates one in automatic heating
operation.
• In Tc ≥ 60°C, the air speed increases by 1 step.
<Operation of duct only>
SM402
Standard
High ceiling
COOL HEAT
SM562
SM452
Tap
Revolutions per
minute (rpm)
COOL
HEAT
UL
L
UL
FD
FD
FB
FA
F9
F8
F7
F6
F5
F4
F3
F2
F1
360
610
610
670
730
730
790
850
850
870
880
880
900
360
550
550
590
640
640
690
750
750
790
830
830
900
L+
L
L+
M
M
UL
UL
M+
H
M+
L
L
L+
L+
H
M+,M
H
M+,M
H
Tc: Indoor heat exchanger sensor temperature
3) In heating operation, the mode changes to [UL] if thermo-
stat is turned off.
[PRE-HEAT] display
4) If Ta ≥ 25°C when heating operation has started and when
defrost operation has been cleared, it operates with HIGH
(H) mode or (HH) for 1 minute from when Tc has entered
in E zone of cool air discharge preventive control (Item 6).
F5
F4
Tc
(˚C)
47
5) In automatic cooling/heating operation, the revolution
frequency of [HH] is set larger than that in the standard
cooling/heating operation. However the revolution fre-
quency is restricted in the automatic heating operation as
shown in the following figure.
42
F5
– 41 –
No.
Item
Cool air
discharge
preventive
control
Outline of specifications
Remarks
6
1) In heating operation, the indoor fan is controlled based In D or E zone, the priority
on the detected temperature of Tc sensor or Tcj sensor. is given to setup of air
As shown below, the
upper limit of the
revolution frequency
is determined.
volume exchange.
Tc
Tcj
(˚C)
32
HH
H
In A and B zones,
[PRE-HEAT] is displayed.
30
L
E zone
D zone
28
UL
26
OFF
C zone
B zone
A zone
20
16
7
Freeze
preventive
control
1) The cooling operation (including Dry operation) is
performed as follows based on the detected tempera-
ture of Tc sensor or Tcj sensor.
Tcj : Indoor heat ex-
changer sensor
temperature
(Low
temperature
release)
When [J] zone is detected for 6 minutes (Following
figure), the commanded frequency is decreased from
the real operation frequency. After then the commanded
frequency changes every 30 seconds while operation is
performed in [J] zone.
In [K] zone, time counting is interrupted and the opera-
tion is held.
When [I] zone is detected, the timer is cleared and the
operation returns to the normal operation.
If the commanded frequency becomes S0 because the
operation continues in [J] zone, the return temperature
A is raised from 5°C to 12°C until [I] zone is detected
and the indoor fan
operates with [M] mode.
(˚C)
A
5
2
I
K
J
In heating operation, the freeze-preventive control
works if 4-way valve is not exchanged and the condition
is satisfied. (However the temperature for J zone
dashing control is changed from 2°C to –5°C.)
8
High-temp
release control
1) The heating operation is performed as follows based on
the detected temperature of Tc sensor or Tcj sensor.
• When [M] zone is detected, the commanded fre-
quency is decreased from the real operation fre-
quency. After then the commanded frequency
changes every 30 seconds while operation is per-
formed in [M] zone.
• In [N] zone, the commanded frequency is held.
• When [L] zone is detected, the commanded fre-
quency is returned to the original value by approx.
6Hz every 60 seconds.
Tc(˚C)
M
Setup at
shipment
Tcj
A
Control temp (°C)
N
A
B
B
56 (54) 52 (52)
L
NOTE :
When the operation has started or when Tc or Tcj became
lower than 30°C after start of the operation, temperature is
controlled between values in parentheses of A and B.
Same when thermostat is
turned off.
– 42 –
No.
Item
Outline of specifications
Remarks
9
Drain pump control 1) In cooling operation (including Dry operation), the
drain pump is usually operated.
2) If the float switch operates while drain pump
operates, the compressor stops, the drain pump
continues the operation, and a check code is
output.
3) If the float switch operates while drain pump stops,
the compressor stops and the drain pump oper-
ates. If the float switch keeps operating for approx.
4 minutes, a check code is output.
Check code [P10]
10 After-heat
elimination
When heating operation stops, the indoor fan operates
with LOW mode for approx. 30 seconds.
11 Flap control
1) Flap position setup
• When the flap position is changed, the position
moves necessarily to downward discharge
position once to return to the set position.
• The flap position can be set up in the following
operation range.
In cooling/dry operation In heating/fan operation
• In group twin/triple operation, the flap positions
can be set up collectively or individually.
2) Swing setup
• The swinging position can be moved in the
following operation range.
All modes
• In group twin/triple operation, the swinging
positions can be set up collectively or individu-
ally.
Warning :
3) When the unit stops or when a warning is output,
the flap automatically moves downward.
A check code is displayed
on the remote controller,
and the indoor unit stops.
(Excluding [F08] and
[L31])
4) While the heating operation is ready, the flap
automatically moves upward.
– 43 –
No.
Item
Outline of specifications
Remarks
12 Frequency fixed
operation
<In case of wired remote controller>
1. When pushing [CHECK] button for 4 seconds or more,
[TEST] is displayed on the display screen and the
mode enters in Test run mode.
(Test run)
2. Push [ON/OFF] button.
3. Using [MODE] button, change the mode from [COOL]
to [HEAT].
• Do not use other mode than [COOL]/[HEAT] mode.
• During test run operation, the temperature cannot be
adjusted.
• An error is detected as usual.
• A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation. (Display in the display part is same as the
procedure in item 1).)
5. Push [CHECK] button to clear the test run mode.
([TEST] display in the display part disappears and the
status returns to the normal stop status.)
<In case of wireless remote controller>
1. Turn off the power of the set.
Remove the adjuster with sensors from the ceiling
panel.
2. Turn Bit [1:TEST] of sensor P.C. board switch [S003]
from OFF to ON.
Attach the sensor P.C. board cover and mount the
adjuster with sensors to the ceiling panel.
Turn on the power of the set.
3. Push [ON/OFF] button of the wireless remote controller
and set the operation mode to [COOL] or [HEAT] using
[MODE] button.
(During test run operation, all the display lamps of
wireless remote controller sensors flash.)
• Do not use other mode than [COOL]/[HEAT] mode.
• An error is detected as usual.
• A frequency fixed operation is performed.
4. After the test run, push [ON/OFF] button to stop the
operation.
5. Turn off the power of the set.
Turn Bit [1:TEST] of sensor P.C. board switch [S003]
from ON to OFF.
Mount the adjuster with sensors to the ceiling panel.
13 Filter sign display 1) The operation time of the indoor fan is calculated, the
[FILTER] goes on.
(Except wireless
type)
filter reset signal is sent to the remote controller when
the specified time (2500H) has passed, and it is
displayed on LCD.
2) When the filter reset signal has been received from the
remote controller, time of the calculation timer is
cleared. In this case, the measurement time is reset if
the specified time has passed, and display on LCD
disappears.
– 44 –
No.
Item
Outline of specifications
Remarks
14 Central control
mode selection
1) Setting at the central controller side enables to select
the contents which can be operated on the remote
controller at indoor unit side.
2) RBC-AMT31E, RBC-AMT32E
[Last push priority] :
(No display)
The operation contents can be selected from both
remote controller and central controller of the indoor
unit side, and the operation is performed with the
contents selected at the last.
[Center] :
[
[
] goes on.
] goes on.
Start/Stop operation only can be handled on the
remote controller at indoor unit side.
[Operation Prohibited] :
It cannot be operated on the remote controller at
indoor unit side. (Stop status is held.)
In a case of wireless type, the
display lamp does not change.
However, contents which can be
operated are same.
The status set in [
] /
[Operation Prohibited] mode is
notified with the receiving sound
“Pi, Pi, Pi, Pi, Pi” (5 times).
15 Energy-save
control
1) Selecting [AUTO] mode enables an energy-saving to
be operated.
(By connected
outdoor unit)
2) The setup temperature is shifted (corrected) in the
range not to lose the comfort ability according to input
values of various sensors.
3) Data (Input value room temp. Ta, Outside temp. To, Air
volume, Indoor heat exchanger sensor temp. Tc) for
20 minutes are taken the average to calculate
correction value of the setup temperature.
4) The setup temperature is shifted every 20 minutes,
and the shifted range is as follows.
In cooling time : +1.5 to –1.0K
In heating time : –1.5 to +1.0K
16 Max. frequency 1) This control is operated by selecting [AUTO] opera-
cut control
tion mode.
Ta(˚C)
2) COOL operation mode: the frequency
is controlled according to the following
figure if To < 28°C.
Normal control
+4
Max. frequency is restricted
to approximately the rated
cooling frequency
+3
Tsc
Ta(˚C)
3) HEAT operation mode: the frequency
is controlled according to the right
figure if To > 15°C.
Tsh
Max. frequency is restricted
to approximately the rated
heating frequency
–3
–4
Normal control
17 DC motor
1) When the fan operation has started, positioning of the
stator and the rotor are performed.
(Moves slightly with tap sound)
2) The motor operates according to the command from
the indoor controller.
NOTES :
• When the fan rotates while the air conditioner stops
due to entering of outside air, etc, the air conditioner
may operated while the fan motor stops.
• When a fan locking is found, the air conditioner stops,
and an error is displayed.
Check code [P12]
– 45 –
Filter/Option error input
EEPROM
Connection interface
Microcomputer operation LED
DC fan output
Indoor/Outdoor
inter-unit cable
Optional
power supply
Remote controller
power supply LED
DC fan return
Float SW
*1
Drain pump output
Fan output
HA (T10)
TCJ sensor
EXCT
TA sensor
Remote controller inter-unit cable
Used for
servicing
DISP
CHK
Optional output
TC sensor
Louver
(Used only for 4-way Air Discharge Cassette Type, Under Ceiling type)
8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS
8-1. Indoor Control Circuit
8-1-1. Outline of Main Controls
1. Pulse Motor Valve (P.M.V.) control
1) PMV is controlled with 50 to 500 pulses during operation, respectively.
2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor.
3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE sensor.
4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and heating
operations.
5) When the cycle excessively rose in both cooling and heating operations, PMV is controlled by TD sensor.
The aimed value is usually 106°C for SP404, SP454, SM562, SM563, 100°C for SP562 in both cooling and
heating operations.
CAUTION
A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the
compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance
value an the refrigerating cycle of each sensor after repair and then start the operation.
TD [˚C]
2. Discharge temperature release control
1) This function controls the operation frequency,
that is, lowers the operation frequency when the
discharge temperature has not lower or the
discharge temperature has rapidly risen during
P.M.V. control.
Error stop ("P03" display with 8 times of error counts)
Frequency down
a
b
c
It subdivides the frequency control up to a unit
of 0.6Hz to stabilize the cycle.
2) When the discharge temperature is detected in
an abnormal stop zone, the unit stops the
compressor and restarts after 2 minutes 30
seconds.
Frequency holding
d
e
Frequency slow-up
(Up to command)
The error counter is cleared when it has
continued the operation for 10 minutes.
If the abnormal stop zone has been detected by
8 times without clearing of counter, an error
“P03” is displayed.
As command is
∗ The cause is considered as excessively little
amount of refrigerant, defective PMV, or
clogging of cycle.
[A]
Frequency down
Hold
[°C]
I1
a
b
c
d
e
SM562, SM563,
SP404, SP454
Hold
Normal operation
117 107 103 100
111 106 100 95
93
90
1–0.5
SP562
3. Current release control
The output frequency and the output voltage are controlled by AC current value detected by T02 on the
outdoor P.C. board so that input current of the inverter does not exceed the specified value.
I1 value [A]
Objective
model
COOL
10.13
10.13
11.55
HEAT
12.00
10.50
13.43
SM562, SM563
SP404, SP454
SP562
* For the cooling only models, only COOL is objective.
– 47 –
8-1-2. Indoor P.C. Board Optional Connector Specifications
Connector Pin
Function
Specifications
DC12V (COM)
Remarks
No.
No.
Option output
CN60
1
2
Defrost output
ON during defrost operation of outdoor unit
ON during Real thermo-ON (Comp ON)
3
Thermo. ON output
Cooling output
4
ON when operation mode is in cooling system
(COOL, DRY, COOL in AUTO cooling/heating)
5
6
Heating output
Fan output
ON when operation mode is in heating system
(HEAT, HEAT in AUTO cooling/heating)
ON during indoor fan ON
(Air purifier is used/Interlock cable)
Outside error
input
CN80
CN70
1
2
3
1
DC12V (COM)
DC12V (COM)
Outside error input
(When continued for 1 minute)
Check code “L30” is output and forced operation stops.
Filter/Option/Humidifier Option error input is controlled. (Protective operation
setup input
Filter option
error
for device attached to outside is displayed.)
2
0V
* Setting of option error input is performed from
remote controller. (DN=2A)
CHK
Operation check
CN71
CN72
CN73
1
2
1
2
1
2
Check mode input
Used for operation check of indoor unit.
(Communication with outdoor unit or remote controller
is not performed, but the specified operation such as
indoor fan “H” or drain pump ON is output.)
0V
DISP display
mode
Display mode input
0V
Display mode enables indoor unit and remote control-
ler to communicate. (When power is turned on)
Demand input
0V
EXCT demand
Forced thermo-OFF operation in indoor unit
– 48 –
9. TROUBLESHOOTING
9-1. Summary ofTroubleshooting
<Wired remote controller type>
1. Before troubleshooting
1) Required tools/instruments
–
+
•
and
screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3.Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
4. ON/OFF operation cannot be performed from remote controller.
• Is not the control operation performed from outside/remote side?
• Is not automatic address being set up?
(When the power is turned on at the first time or when indoor unit address setting is changed, the
operation cannot be performed for maximum approx. 5 minutes after power-ON.)
b) Did you return the cabling to the initial positions?
c) Are connecting cables of indoor unit and remote controller correct?
2. Troubleshooting procedure
When a trouble occurred, check the parts along with the following procedure.
→
→
Trouble
NOTE :
Confirmation of check code display
Check defective position and parts.
For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer
noise is considered except the items to be checked. If there is any noise source, change the cables of the
remote controller to shield cables.
– 49 –
<Wireless remote controller type>
1. Before troubleshooting
1) Required tools/instruments
–
+
•
and
screwdrivers, spanners, radio cutting pliers, nippers, etc.
• Tester, thermometer, pressure gauge, etc.
2) Confirmation points before check
a) The following operations are normal.
1. Compressor does not operate.
• Is not 3-minutes delay (3 minutes after compressor OFF)?
• Does not thermostat turn off?
• Does not timer operate during fan operation?
• Is not outside high-temperature operation controlled in heating operation?
2. Indoor fan does not rotate.
• Does not cool air discharge preventive control work in heating operation?
3) Outdoor fan does not rotate or air volume changes.
• Does not high-temperature release operation control work in heating operation?
• Does not outside low-temperature operation control work in cooling operation?
• Is not defrost operation performed?
4) ON/OFF operation cannot be performed from remote controller.
• Is not forced operation performed?
• Is not the control operation performed from outside/remote side?
• Is not automatic address being set up?
a) Did you return the cabling to the initial positions?
b) Are connecting cables between indoor unit and receiving unit correct?
2. Troubleshooting procedure
(When the power is turned on at the first time or when indoor unit address setting is changed, the operation
cannot be performed for maximum approx. 5 minutes after power-ON.)
When a trouble occurred, check the parts along with the following procedure.
Confirmation of lamp display
Check defective
→
→
(When 4-way air discharge cassette type
wireless remote controller is connected)
Trouble
position and parts.
1) Outline of judgment
The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with
the following method.
Method to judge the erroneous position by flashing indication on the display part of indoor unit
(sensors of the receiving unit)
The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis
are displayed restricted to the following cases if a protective circuit works.
– 50 –
9-2. Check Code List
Error mode detected by indoor and outdoor units
: Flash,
: Go on,
l : Go off
¥
¡
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Status of
Judgment and measures
Cause of operation
Condition
Operation Timer
Ready
Check code
air conditioner
No communication from remote controller (including wireless) and
communication adapters
1. Check cables of remote controller and communication adapters.
• Handy remote controller LCD display OFF (Disconnection)
• Central remote controller [97] check code
Stop
Displayed when
E03
E04
E08
¥
l
¥
l
l
l
l
(Automatic reset) error is detected
The serial signal is not output from outdoor unit to indoor unit.
• Miscabling of inter-unit cables
• Defective serial sensing circuit on outdoor P.C. board
• Defective serial receiving circuit on indoor P.C. board
1. Outdoor unit does not completely operate.
• Inter-unit cable check, correction of miscabling, case thermo operation
• Outdoor P.C. board check, P.C. board cables check
2. In normal operation
S top
Displayed when
¥
(Automatic reset) error is detected
P.C. board (Indoor receiving/Outdoor sending) check
Duplicated indoor unit addresses
1. Check whether there is modification of remote controller connection (Group/Individual)
or not after power has been turned on (finish of group configuration/address check).
* If group configuration and address are not normal when the power has been turned
on, the mode automatically shifts to address setup mode. (Resetting of address)
Displayed when
Stop
l
error is detected
Communication error between indoor MCU
• Communication error between fan driving MCU and main MCU
1. Check cables of remote controller.
2. Check power cables of indoor unit.
3. Check indoor P.C. board.
Stop
Displayed when
E10
E18
¥
¥
l
l
l
l
(Automatic reset) error is detected
Regular communication error between master and sub indoor units or
between main and sub indoor units
1. Check cables of remote controller.
2. Check indoor power cable.
3. Check indoor P.C. board.
Stop
Displayed when
(Automatic reset) error is detected
Coming-off, disconnection or short of indoor heat exchanger sensor (TCJ)
Coming-off, disconnection or short of indoor heat exchanger sensor (TC)
Coming-off, disconnection or short of outdoor temperature sensor (TD)
Coming-off, disconnection or short of outdoor temperature sensor (TE/TS)
Coming-off, disconnection or short of outdoor temperature sensor (TO)
Coming-off, disconnection or short of indoor heat exchanger sensor (TA)
Stop
Displayed when 1. Check indoor heat exchanger temperature sensor (TCJ).
2. Check indoor P.C. board.
F01
F02
F04
F06
F08
F10
F29
¥
¥
¥
¥
¥
¥
¥
¥
¥
¥
¥
¥
¥
¥
l
l
¡
¡
¡
l
l
(Automatic reset) error is detected
Stop Displayed when 1. Check indoor heat exchanger temperature sensor (TC).
(Automatic reset) error is detected
2. Check indoor P.C. board.
Displayed when 1. Check outdoor temperature sensor (TD).
Stop
Stop
error is detected
Displayed when 1. Check outdoor temperature sensor (TE/TS).
2. Check outdoor CDB P.C. board.
error is detected
2. Check outdoor CDB P.C. board.
Operation
continues.
Displayed when 1. Check outdoor temperature sensor (TO).
error is detected
Displayed when 1. Check indoor heat exchanger temperature sensor (TA).
2. Check outdoor CDB P.C. board.
Stop
(Automatic reset) error is detected
2. Check indoor P.C. board.
Indoor EEPROM error
• EEPROM access error
Stop Displayed when 1. Check indoor EEPROM. (including socket insertion)
(Automatic reset) error is detected
2. Check indoor P.C. board.
Breakdown of compressor
• Displayed when error is detected
1. Check power voltage. AC200V ±20V
2. Overload operation of refrigerating cycle
3. Check current detection circuit at AC side.
Displayed when
Stop
H01
H02
H03
¥
l
l
l
¥
¥
l
l
l
error is detected
Compressor does not rotate.
• Over-current protective circuit operates after specified time passed
when compressor had been activated.
1. Trouble of compressor (Compressor lock, etc.) : Replace compressor.
2. Defective cabling of compressor (Phase missing)
3. Phase-missing operation of power supply (3-phase model)
Displayed when
Stop
error is detected
Current detection circuit error
• Current value at AC side is high even during compressor-OFF.
• Phase of power supply is missed.
1. Compressor immediately stops even if restarted. : Check IPDU.
2. Phase-missing operation of power supply
Check 3-phase power voltage and cables.
Displayed when
Stop
error is detected
Duplicated indoor master units
Displayed when 1. Check whether there is modification of remote controller connection (Group/Individual)
L03
L07
L08
Stop
Stop
Stop
¥
¥
¥
¥
¥
¥
l
l
l
error is detected
or not after power has been turned on (finish of group configuration/address check).
* If group configuration and address are not normal when the power has been turned
on, the mode automatically shifts to address setup mode. (Resetting of address)
There is group line in individual indoor units.
Unsetting of indoor group address
Displayed when
error is detected
Displayed when
error is detected
: Flash,
: Go on,
l : Go off
¥
¡
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Judgment and measures
1. Set the indoor capacity. (DN=I1)
Status of
air conditioner
Cause of operation
Condition
Operation Timer
Ready
Check code
Unset indoor capacity
Displayed when
error is detected
L09
Stop
Stop
Stop
¥
¥
l
Outdoor unit and other errors
1. Check cables of CDB and IPDU.
2. Abnormal overload operation of refrigerating cycle
Displayed when
error is detected
L29
• Communication error between CDB and IPDU (Coming-off of connector)
• Heat sink temperature error (Detection of temperature over specified value)
¥
l
l
Abnormal outside interlock input
Displayed when
error is detected
1. Check outside devices.
2. Check indoor P.C. board.
L30
L31
¥
¥
¡
¡
¥
¥
Phase detection protective circuit operates. (Normal models)
Fan motor thermal protection
Operation continues.
(Compressor stops.)
Displayed when
error is detected
1. Check power phase order (Reversed phase)/phase missing.
2. Check outdoor P.C. board.
Displayed when
error is detected
1. Check thermal relay of fan motor.
2. Check indoor P.C. board.
No check code is displayed.
Stop
Stop
Discharge temperature error
Displayed when
error is detected
1. Check refrigerating cycle. (Gas leak)
2. Trouble of PMV
3. Check Td sensor.
P03
• Discharge temperature over specified value was detected.
¥
¥
¥
¥
l
l
High-pressure protection error by TE sensor
(Temperature over specified value was detected.)
Displayed when
error is detected
1. Overload operation of refrigerating cycle
2. Check outdoor temperature sensor (TE).
3. Check outdoor CDB P.C. board.
P04
P10
Stop
Stop
Float switch operation
1. Defect of drain pump
2. Clogging of drain pump
3. Check float switch.
• Disconnection, coming-off, defective float switch contactor of float circuit
Displayed when
error is detected
¥
¥
l
4. Check indoor P.C. board.
Indoor DC fan error
1. Defective detection of position
Displayed when
error is detected
2. Over-current protective circuit of indoor fan driving unit operates.
3. Lock of indoor fan
4. Check indoor P.C. board.
P12
P19
P22
Stop
¥
l
l
¥
¥
¥
l
¥
¥
Error in 4-way valve system
• Indoor heat exchanger temperature lowered after start of heating operation.
1. Check 4-way valve.
2. Check indoor heat exchanger (TC/TCJ) sensor.
3. Check indoor P.C. board.
Stop
(Automatic reset)
Displayed when
error is detected
Outdoor DC fan error
1. Defective detection of position
2. Over-current protective circuit of outdoor fan driving unit operates.
3. Lock of outdoor fan
Displayed when
error is detected
Stop
4. Check outdoor CDB P.C. board.
Inverter over-current protective circuit operates. (For a short time)
Short voltage of main circuit operates.
Displayed when
error is detected
1. Inverter immediately stops even if restarted. : Compressor motor rare short
2. Check IPDU. : Cabling error
P26
P29
P31
Stop
Stop
¥
¥
¥
¥
¥
¥
l
l
l
IPDU position detection circuit error
Displayed when
error is detected
1. Position detection circuit operates even if operating compressor by removing
3P connector. : Replace IPDU.
Own unit stops while warning is output to other indoor units.
Stop (Sub unit)
(Automatic reset)
Displayed when
error is detected
1. Judge sub unit while master unit is in [E03], [L03], [L07], [L08].
2. Check indoor P.C. board.
For an error mode detected in outdoor unit, the fan operates because sub unit of a group operation does not communicate with the outdoor unit.
Error mode detected by remote controller
: Flash,
: Go on,
l : Go off
¥
¡
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Judgment and measures
Status of
air conditioner
Cause of operation
Condition
Operation Timer
Ready
Check code
No communication with master indoor unit
• Remote controller cable is not correctly connected.
• Power of indoor unit is not turned on.
Remote controller power error, Defective indoor EEPROM
1. Check remote controller inter-unit cables.
2. Check remote controller.
3. Check indoor power cables.
4. Check indoor P.C. board.
No check code
is displayed.
(Remote controller
does not operate.)
—
—
—
• Automatic address cannot be completed.
Stop
—
5. Check indoor EEPROM. (including socket insertion)
: Phenomenon of automatic address repetition occurred.
No communication with indoor master unit
• Disconnection of inter-unit cable between remote
controller and master indoor unit
Signal receiving of remote controller is defective.
1. Check remote controller inter-unit cables.
2. Check remote controller.
Stop
(Automatic restart)
* When there is center, operation continues.
Displayed when
error is detected
E01
¥
l
l
(Detected at remote controller side)
3. Check indoor power cables.
4. Check indoor P.C. board.
Signal sending error to indoor unit
(Detected at remote controller side)
Stop
(Automatic restart)
When there is center, operation continues.
Signal sending of remote controller is defective.
1. Check sending circuit inside of remote controller.
: Replace remote controller.
Displayed when
error is detected
E02
E09
L20
¥
¥
¥
l
l
¡
l
l
¥
*
Multiple master remote controllers are recognized.
(Detected at remote controller side)
1. Check there are multiple master units for 2 remote controllers
(including wireless).
: Master unit is one and others are sub units.
Stop
Displayed when
error is detected
(Sub unit continues operation.)
Duplicated indoor central addresses on communication
of central control system
(Detected by central controller side)
1. Check address setup of central control system network. (DN = 03)
Stop
(Automatic restart)
Displayed when
error is detected
Error mode detected by central remote controller
: Flash,
: Go on,
l : Go off
¥
¡
Wireless sensor
lamp display
Wired remote
controller
Diagnostic function
Status of
Judgment and measures
Cause of operation
Condition
Operation Timer
Ready
Check code
air conditioner
1. Check communication line/miscabling/ Check power of indoor unit.
2. Check communication. (U3, U4 terminals)
Displayed when
error is detected
—
—
—
C05
Sending error central remote controller
Operation continues
3. Check network adapter P.C. board.
4. Check central controller (such as central control remote controller, etc.).
5. Terminal resistance check (connection interface SW01)
Displayed when
error is detected
—
—
—
—
—
—
C06
P30
Receiving error in central remote controller
Operation continues
Differs according to error contents of unit with
occurrence of alarm.
Continuation/Stop
(Based on a case)
Displayed when
error is detected
Check the check code of corresponding unit by remote controller
9-3. Error Mode Detected by LED on Outdoor P.C. Board
RAV-SP562AT-E only
<SW801: LED display in bit 1, bit 2 OFF>
• When multiple errors are detected, the latest error is displayed.
• When LED display is
(Go on), there is the main cause of trouble on the objective part of control at CDB
¡
side and the unit stops.
• When LED display is
(Flash), there is the main cause of trouble on the objective part of control at IPDU
¥
side and the unit stops.
• When case thermostat operates, the communication is interrupted on the serial circuit.
If continuing the case thermostat operation, a serial communication error occurs because serial sending to
the indoor unit is interrupted.
Check
code
LED display
No.
Item
D800
(Red)
D801
(Yellow)
D802
(Yellow)
D803
(Yellow)
Type A
F06
1
2
3
4
5
6
7
TE sensor error
TD sensor error
TS sensor error
TO sensor error
¡
¡
l
l
l
¡
l
¡
l
¡
¡
¡
l
l
¡
l
¡
¡
l
l
l
l
l
l
F04
F06
F08
Discharge temp. error
DC outdoor fan error
P03
P22
CDB side
Communication error between IPDU
(Abnormal stop)
L29
¡
¡
l
l
8
9
High-pressure release operation
EEPROM error
P04
—
¡
¡
¡
¡
l
l
l
¡
10 Communication error between IPDU
(No abnormal stop)
—
¡
¡
l
l
11 IGBT short-circuit protection
12 Detection circuit error
13 Current sensor error
14 Comp. lock error
P26
P29
H03
H02
H01
¥
l
¥
l
¥
l
¥
¥
l
l
l
l
l
¥
¥
l
l
l
l
l
IPDU side
15 Comp. breakdown
: Go on
: Go off
: Flash (5Hz)
¡
¥
l
<<Check code>>
The check codes are classified into Type A and Type B according to the used remote controller.
Be sure to check the remote controller which you use.
Type A :
Neutral 2-cores type wired remote controller such as RBC-AMT31E, RBC-AMT32E, RBC-AS21E2,
and wireless remote controller kit such asTCB-AX21E2
– 54 –
9-4. Troubleshooting Procedure for Each Check Code
9-4-1. Check Code
[E01 error]
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?
YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES
Correct connection of connector.
Check circuit cables.
NO
NO
Is group control operation?
YES
NO
Check power connection of indoor unit.
(Turn on power again.)
Is power of all indoor units turned on?
YES
NO
Check indoor P.C. board (MCC-1402).
Is power supplied to remote controller?
AB terminal: Approx. DC18V
Defect → Replace
YES
YES
Correct as a master unit/a sub unit
(Remote controller address connector)
Are two remote controllers
set without master unit?
NO
Check remote controller P.C. board.
Defect → Replace
[E09 error]
YES
Correct as a master unit/a sub unit
(Remote controller address connector)
Are two remote controllers
set without master unit?
NO
Check remote controller P.C. board.
Defect → Replace
– 55 –
[E04 error]
NO
Does outdoor unit operate?
YES
NO
NO
Is setup of group address correct?
YES
Check item code [14].
Correct inter-unit cable.
Are 1, 2, 3 inter-unit cables normal?
YES
Are connections from connectors
of inter-terminal blocks (1, 2, 3)
of indoor/outdoor units normal?
NO
NO
Correct connection of connector.
YES
Check indoor P.C. board
(MCC-1402).
Does voltage between
2 and 3 of inter-terminal blocks (1, 2, 3)
of indoor unit vary?*
Defect → Replace
YES
As shown in the following figure, perform measurement
within 20 seconds after power ON.
*
S5277G
Black
White
3
2
1
Inter-terminal block
YES
Check/Correct charged
refrigerant amount.
Does case thermo. operate?
NO
Check indoor P.C. board (MCC-1402).
Defect → Replace
RAV-SM562AT-E, RAV-SM563AT-E
MCC-5009
MCC-1531 and MCC-1438
Check outdoor P.C. board
Defect → Replace
RAV-SP404AT-E, RAV-SP454AT-E
RAV-SP562AT-E
– 56 –
[E10 error]
Check indoor control P.C. board (MCC-1402).
Defect → Replace
[E18 error]
NO
Correct inter-unit cable of remote controller.
Is inter-unit cable of A and B normal?
YES
Is there no disconnection
or contact error of connector on harness
from terminal block of indoor unit?
YES
YES
Correct connection of connector.
Check circuit cables.
NO
NO
Is group control operation?
NO
Is power of all indoor units turned on?
Check indoor P.C. board (MCC-1402).
Check power connection of indoor unit.
(Turn on power again.)
Defect → Replace
[E08, L03, L07, L08 error]
E08 : Duplicated indoor unit numbers
L03 :Two or more master units in a group control
L07 : One or more group addresses of [Individual] in a group control
L08 : Unset indoor group address (99)
If the above is detected when power has been turned on, the mode automatically enters in automatic ad-
dress setup mode. (Check code is not displayed.)
However, if the above is detected during automatic address setup mode, the check code may be displayed.
[L09 error]
YES
Set capacity data of indoor unit.
(Setup item code (DN) = 11)
Is capacity of indoor unit unset?
NO
Check indoor P.C. board (MCC-1402).
Defect → Replace
– 57 –
[L20 error]
NO
Correct cable connection
Are cable connections to communication line U3, U4 normal?
YES
YES
Are not multiple same central
control network addresses connected?
Correct central control network address.
NO
Check central controller (including connection interface)
indoor P.C. board. Defect → Replace.
[L30 error]
NO
NO
Check indoor P.C. board (MCC-1402).
Are outside devices of connector CN80 connected?
YES
Defect → Replace
Check outside devices.
Defect → Replace
Do outside devices normally operate?
YES
Check operation cause.
[P10 error]
NO
Is connection of float switch connector
Correct connection of connector.
Check and correct cabling/wiring.
(Indoor control P.C. board CN34) normal?
YES
NO
NO
NO
Does float
switch operate?
Is circuit
cabling normal?
YES
YES
Check indoor P.C. board (MCC-1402).
Defect → Replace
NO
Check indoor P.C. board (MCC-1402).
Does drain pump
operate?
Is power of drain
pump turned on?
Defect → Replace
YES
YES
Replace drain pump.
Check cabling.
Check drain pipe, etc.
[F10 error]
NO
Is connection of TA sensor connector
(indoor P.C. board CN104) normal?
Correct connection of connector.
Replace TA sensor.
YES
NO
Are characteristics of TA sensor resistance value normal?
YES
* Refer to Characteristics-1.
Check indoor P.C. board (MCC-1402).
Defect → Replace
– 58 –
[P12 error]
<Only for 4-way air discharge cassette type models>
Turn off the power.
Are not there connections errors or
disconnection on connectors CN333 and CN334
of indoor unit P.C. board (MCC-1402)?
YES
Correct connection of connector.
NO
Remove connectors CN333 and
CN334 of indoor unit P.C. board
(MCC-1402).
NO
Does the fan rotate without trouble
when handling the fan with hands?
Replace indoor fan motor.
Replace indoor fan motor.
YES
Are resistance values between phases
at fan motor connector CN333 motor side of
indoor P.C. board (MCC-1402) correct? *1
NO
1
YES
*
1
3
• Are not coil windings between
(Red lead) and
(White lead),
3
5
between
(White lead) and
(Black lead), between
5
1
(Black lead) and
(Red lead) opened or shorted?
→ For resistance, see the following values.
Approx. 70 to 100Ω
Is resistance value of fan motor connector
CN333 at motor side of indoor P.C. board
(MCC-1402) correct? *2
NO
Replace indoor fan motor.
2
YES
*
Check resistance of fan motor position detection circuit.
1
4
Is not coil winding between
(Yellow lead) and
(Pink lead)
opened or shorted? → Resistance: Approx. 5 to 20kΩ
NO
Is signal output of indoor fan motor
position detection correct? *3
Replace indoor fan motor.
YES
3
*
Check fan motor position detection signal.
• Using a tester, measure the voltage between CN334
1
5
and
of
indoor P.C. board (MCC-1402) under condition that CN333 and
CN334 are mounted and the power is turned on.
→ Rotate the fan slowly with hands, and check the pin voltage
swings between 0 to 5V voltage.
4
5
• Between
and
: 5V
Check indoor P.C. board
(MCC-1402).
CN333
Defect → Replace
CN334
– 59 –
[P22 error]
Are connections of CN301 and CN300
of P.C. board correct?
YES
CN301,
∗
CN303
Does the fan rotate without trouble
when handling the fan with hands under condition
of removing CN301 and CN300 from P.C. board?
NO
YES
The status that the resistance values
between leads below are 50 to 80Ω
for 40Ω motor (ICF-140-40) and 25 to 55Ω
for 60Ω motor (ICF-140-60-1) is normal.
NO
Between
Between
Between
1
2
3
(Red lead) and
(White lead) and
(Black lead) and
2
3
1
(White lead)
(Black lead)
(Red lead)
CN300
of motor winding of connector (CN301)
CN300 : Motor coil winding
CN301 : Motor position detection
YES
∗
CN301, CN303 : Motor coil winding
CN300, CN302 : Motor position detection
SP562AT-E
The status that there is
5k to 20kW resistance values between
NO
1
(Yellow lead) and
4
(Pink lead) of
motor position detection of
connector (CN300) is normal.
YES
Normal fan motor
(Control or CDB P.C. board)
Defective fan motor
(Control P.C. board or CDB P.C. board)
NOTE :
However, GND circuit error inside of the motor is rarely detected even if the above check is carried out.
When the circuit does not become normal even if P.C. board has been replaced, replace outdoor fan motor.
Single phase
RAV-SM562AT-E, SM563AT-E
RAV-SP562AT-E
RAV-SP404AT-E, SP454AT-E
Objective P.C. board
Fan motor winding
Control P.C. board
CN300
CDB P.C. board
CN301
Motor position detection
CN301
CN300
– 60 –
[P19 error]
Is voltage applied
to 4-way valve coil terminal
in heating operation?
NO
NO
Is operation of
4-way valve normal?
YES
YES
Is flow of refrigerant
by electron expansion
valve normal?
NO
Check 4-way valve
Defect → Replace
YES
Check and replace
electron expansion valve.
NO
Is circuit cable normal?
YES
Are characteristics
of TC sensor resistance
value normal?
NO
Check and correct circuit.
YES
* Refer to
Characteristics-2.
NO
Check CDB P.C. board.
YES
Replace TC sensor.
Check CDB P.C. board.
Defect → Replace
Check indoor P.C. board.
Defect → Replace
* For RAV-SM562AT-E, check control P.C. board.
• In cooling operation, if high pressure is abnormally raised, [P19 error]/[08 error] may be displayed. In this
case, remove cause of pressure up and then check again referring to the item [P04 error]/[21 error].
[F02 error]
NO
Is connection of TC sensor connector
Correct connection of connector.
(Indoor P.C. board CN101) normal?
YES
NO
Are characteristics of
TC sensor resistance value normal?
Replace TC sensor.
YES
* Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1402).
Defect → Replace
– 61 –
[F01 error]
NO
Is connection of TCJ sensor connector
(Indoor P.C. board CN102) normal?
Correct connection of connector.
Replace TCJ sensor.
YES
NO
Are characteristics of
TCJ sensor resistance value normal?
YES
∗ Refer to Characteristics-2.
Check indoor P.C. board
(MCC-1402).
Defect → Replace
[P26 error]
NO
Improve the power supply line.
Is power voltage normal?
YES
Check and correct circuit cables.
Correct connection of connector.
Check and correct reactor connection.
NO
Are connections of
cabling/connector normal?
YES
∗For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E
check RY01 on the control P.C. board.
Are not “P26” and “14” errors output
when an operation is performed by
removing 3P connector of compressor?
YES
NO
Does RY01 relay of
IPDU operate?
NO
YES
∗Single-phase type is not provided to
RAV-SM562AT-E, RAV-SM563AT-E
RAV-SP404AT-E, RAV-SP454AT-E.
Replace IPDU.
YES
Is not AC fuse fused?
NO
∗Replace control P.C. board of
RAV-SM562AT-E, RAV-SM563AT-E
RAV-SP404AT-E, RAV-SP454AT-E.
Replace IPDU.
NO
Is compressor normal?
YES
∗Replace control P.C. board of
RAV-SM562AT-E,
RAV-SM563AT-E,
RAV-SP404AT-E,
RAV-SP454AT-E.
Check IPDU.
Defect → Replace
Check rare short of compressor trouble.
Defect → Replace
– 62 –
[P29 error]
NO
NO
Check and correct circuit cabling
such as cabling to compressor.
Are connections of
cable/connector normal?
YES
Is compressor normal?
YES
YES
Compressor error → Replace
Compressor error → Replace
Compressor error → Replace
Is not earthed?
NO
YES
Is not winding shorted?
(Is resistance between windings 0.6 to 1.2Ω?)
NO
YES
Is not winding opened?
NO
∗ For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E,
replace control P.C. board.
Check IPDU P.C. board.
Defect → Replace
[H03 error]
NO
Are cablings of power and
current sensor normal?
Check and correct circuit cables.
YES
∗ For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E
Check IPDU.
Defect → Replace
replace control P.C. board.
– 63 –
[F06 error]
Are connections of
TE/TS sensor connectors of
CDB CN604/CN605 normal?
NO
Correct connection of connector.
YES
∗ (For RAV-SM562AT-E, RAV-SM563AT-E, RAV-SP404AT-E, RAV-SP454AT-E,
CN600 TE sensor and CN603 TS sensor)
NO
Are characteristics of TE/TS sensor
resistance values normal?
Replace TE and TS sensors.
YES
Check CDB.
Defect → Replace
∗ Refer to Characteristics-3.
[F04 error]
NO
Is connection of TD sensor connector
of CDB CN600 normal?
Correct connection of connector.
YES
∗ (For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E, CN601 TD sensor)
NO
Are characteristics of TD sensor
resistance value normal?
Replace TD sensor.
YES
Check control P.C. board.
∗ Refer to Characteristics-4.
Defect → Replace
[F08 error]
NO
Is connection of TO sensor connector
of CDB CN601 normal?
Correct connection of connector.
YES
∗ (For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E, CN602 TO sensor)
NO
Are characteristics of TO sensor
resistance value normal?
Replace TO sensor.
YES
Check CDB.
Defect → Replace
∗ Refer to Characteristics-5.
– 64 –
[L29 error]
In the case of SUPER DIGITAL INVERTER
Are connections of
CDB CN800 and CDB IPDU CN06
connectors normal?
NO
Correct connection of connector.
YES
YES
NO
Check cabling between IPDU
and CDB and connector.
Was the error just after
power ON determined?
Are cabling/connector normal?
YES
NO
IPDU P.C. board error
Defect → Replace
YES
NO
Improve and eliminate the cause.
Correct mounting.
Is there no abnormal overload?
NO
Is IPDU P.C. board come to
closely contact with heat sink?
YES
YES
Check IPDU P.C. board.
Is power voltage normal?
NO
Defect → Replace
Improve power line.
And power on once again.
In the case of DIGITAL INVERTER
NO
Improve power line.
And power on once again.
Is power voltage normal?
YES
Fault of compressor.
Check rare short
Defect → Replace
NO
Is compressor normal?
YES
Check IPDU P.C. board.
Defect → Replace
[H02 error]
NO
Is power voltage normal?
YES
Improve power line.
Check and correct circuit cabling such
as cabling to compressor
NO
NO
Are connections of
cable/connector normal?
(phase missing) and connector.
YES
NO
Is there no
Is compressor normal?
YES
Compressor lock → Replace
slackened refrigerant?
YES
NO
Does electron expansion
valve normally operate?
Check TE and TS sensors. → Replace
Check electron expansion valve. → Replace
YES
∗ For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E,
replace control P.C. board.
Check IPDU and CDB.
Defect → Replace
– 65 –
[P03 error]
NO
NO
Correct the cabling and
connection of connector.
Is protective control such as
discharge temprelease control normal?
Are connections of
cable/connector normal?
YES
YES
Check parts. Defect → Replace
NO
Check and correct the charged
refrigerant amount.
Is charged refrigerant amount normal?
YES
YES
Improve and delete the cause
Replace TD sensor.
Is not abnormal overload?
NO
NO
Are characteristics of
TD sensor resistance value normal?
* Refer to Characteristics-4.
YES
Check CDB.
Defect → Replace
∗ For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E,
replace control P.C. board.
[H01 error]
NO
Improve power line.
Is power voltage normal?
YES
YES
Improve and delete the cause.
Check and correct circuit cables.
Is not abnormal overload?
NO
NO
Is the circuit detected by
current sensor normal?
YES
Check IPDU.
Defect → Replace
∗ For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E,
replace control P.C. board.
– 66 –
[P04 error]
Is high-voltage
protective operation by
TE sensor normal?
NO
YES
NO
Is connection of
cabling connector normal?
Correct connection
of cabling connector.
YES
Check TE sensor.
Defect → Replace
NO
Does cooling outdoor fan
normally operate?
YES
NO
NO
Correct connection
of connector.
Is connection of
connector normal?
YES
Replace fan motor.
Is fan motor normal?
YES
NO
Does PMV normally operate?
YES
NO
NO
Check TE, TC, TS sensors.
Replace electron expansion valve.
Do not TD and TO sensors
come off the detection part?
Correct coming-off.
YES
Are characteristics of
TD, TO, TC sensor resistance
values normal?
Replace TD, TO,
and TC sensors.
YES
∗ Refer to Characteristics-3 and 4.
Check charged refrigerant amount.
Check CDB.
Defect → Replace
Check liquid/gas valves.
Check abnormal overload.
∗ For RAV-SM562AT-E, RAV-SM563AT-E,
RAV-SP404AT-E, RAV-SP454AT-E,
replace control P.C. board.
– 67 –
[C06 error] (Central controller)
NO
NO
Is U3, U4 communication line normal?
YES
Correct communication line.
Are connections between connectors
CN51 of connection interface P.C. board and
connectors CN51 of indoor P.C. board normal?
Correct connection of connector.
YES
NO
YES
YES
YES
YES
Check connections of A, B terminal blocks.
Is A, B communication line normal?
YES
Correct communication line of remote controller.
Correct power cable.
Turn on the source power supply.
Clear the check code.
Is there no connection error of power line?
NO
Is not power of source power supply turned on?
NO
Did a power failure occur?
NO
Eliminate noise, etc.
Is there no noise source, etc.?
NO
NO
(Same as others)
Can central remote controller
control normally other indoor units?
Is handling of central remote controller reflected
on the operation status of indoor unit?
Check central controller.
Defect → Replace
YES
NO
Can handy remote controller
control normally other indoor units?
Check indoor P.C. board (MCC-1402).
Defect → Replace
YES
Check connection interface P.C. board.
Defect → Replace
– 68 –
[E03 error] (Master indoor unit)
[E03 error] is detected when the indoor unit cannot receive a signal sent from the main remote controller (and
central controller).
In this case, check the communication cables of the remote controllers A and B, the central control system X
andY. As communication is disabled, [E03] is not displayed on the main remote controller and the central
controller. [E01] is displayed on the main remote controller and [97 error] on the central controller, respectively.
If [E03] occurs during an operation, the air conditioner stops.
[F29 error] / [12 error]
[F29 error] or [12 error] indicates detection of trouble which occurred on IC10 non-volatile memory (EEPROM)
on the indoor unit P.C. board during operation of the air conditioner. Replace the service P.C. board.
* If EEPROM has not been inserted when the power was turned on or if EEPROM data never be read/written,
the automatic address mode is repeated. In this time, the central controller displays [97 error].
(Power ON)
(Approx. 3 minutes)
[SET] is displayed on
main remote controller.
(Approx. 1 minute)
[SET] goes off.
(Repetition)
LED (D02) on
indoor unit P.C. board flashes
with 1Hz for approx. 10 seconds.
Reboot
(Reset)
[P31 error] (Sub indoor unit)
When the master unit of a group operation has detected [E03], [L03], [L07], or [L08] error, the sub unit of the
group operation detects [P31 error] and then it stops.There is no display of the check code or alarm history of
the main remote controller.
(In this model, the mode enters in automatic address set mode when the master unit has detected [E03], [L03],
[L07], or [L08] error.)
– 69 –
9-4-2. Relational Graph ofTemperature Sensor Resistance Value and Temperature
20
40
TA sensor
TC,TCJ sensor
Caracteristics-2
30
Caracteristics-1
Resistance
(k )
Resistance
(k )
10
20
10
0
0
10 20 30
40 50
–10
0
10 20
30 40 50 60 70
Temperature [˚C]
Temperature [˚C]
TE, TO, TS sensor
20
200
Caracteristics-3
Resistance
Resistance
(k )
(10˚C or lower)
(k )
(10˚C or higher)
10
100
0
0
-10
0
10 20 30
40 50 60 70
Temperature [˚C]
TD sensor
20
200
Caracteristics-4
Resistance
Resistance
(k )
(50˚C or lower)
(k )
(50˚C or higher)
10
100
0
0
50
100
Temperature [˚C]
– 70 –
10. REPLACEMENT OF SERVICE INDOOR P.C. BOARD
[Requirement when replacing the service indoor P.C. board assembly]
In the non-volatile memory (Hereinafter said EEPROM, IC10) installed on the indoor P.C. board before replace-
ment, the type and capacity code exclusive to the corresponding model have been stored at shipment from the
factory and the important setup data such as system/indoor/group address set in (AUTO/MANUAL) mode or
setting of high ceiling selection have been stored at installation time. Replace the service indoor P.C. board
assembly according to the following procedure.
After replacement, check the indoor unit address and also the cycle by a test run.
<REPLACEMENT PROCEDURE>
CASE 1
Before replacement, power of the indoor unit can be turned on and the setup data can be readout
from the wired remote controller.
Read EEPROM data *1
ò
Replace service P.C. board & power ON *2
ò
Write the read data to EEPROM *3
ò
Power reset (All indoor units in the group when group operation)
CASE 2
Before replacement the setup data can not be readout from the wired remote controller.
Replace service P.C. board & power ON *2
ò
Write the data such as high ceiling setup to EEPROM (According to the customers’ information) *3
ò
Power reset (All indoor units in the group when group operation)
– 71 –
r1 Readout of the setup data from EEPROM
(Data in EEPROM contents, which have been changed at the local site, are read out together with data in EEPROM
set at shipment from the factory.)
TEST
1. Push
,
CL , and
buttons of the remote controller at the same time for 4 seconds or more. 1
SET
(Corresponded with No. in Remote controller)
When group operation, the master indoor unit address is displayed at the first time. In this time, the item code
(DN) 10 is displayed. The fan of the selected indoor unit operates and the louver starts swinging if any.
UNIT LOUVER
2. Every pushing
Specify the indoor unit No. to be replaced.
3. Using the set temperature
button, the indoor unit address in the group are displayed successively. 2
/
buttons, the item code (DN) can be moved up and down one by one. 3
4. First change the item code (DN) from 10 to 01.
(Setting of filter sign lighting time) Make a note of the set data displayed in this time.
5. Next change the item code (DN) using the set temperature
/
buttons. Also make a note of the set data.
6. Repeat item 5. and make a note of the important set data as shown in the later table (Ex.).
• 01 to FF are provided in the item code (DN). On the way of operation, DN No. may come out.
TEST
7. After finishing making a note, push
button to return the status to usual stop status. 6
(Approx. 1 minute is required to start handling of the remote controller.)
Minimum requirements for item code
1) Type and capacity of the indoor unit is necessary to set the revolutions
frequency of the fan.
DN
Contents
10 Type
2) If Line/Indoor/Group addresses differ from those before replacement, the
mode enters in automatic address setup mode and a manual resetting
may be required.
11 Indoor unit capacity
12 Line address
Notes)
When
replacement
MCC-1402-07
13 Indoor address
14 Group address
Set Short-circuit-plug on the same
position as the P. C. board to replace.
If short-circuit-plug is inserted in
CN34 of the P. C. board to replace,
re-use it in service P. C. board.
CN34
r2 Replacement of service P.C. board
1. Replace the P.C. board with a service P.C. board.
In this time, setting of jumper line (cut) or setting of (short-circuit) connecting connectors on the former P.C. board
should be reflected on the service P.C. board.
2. According to the system configuration, turn on power of the indoor unit with any method in the following items.
a) In case of single (individual) operation
Turn on the power supply.
1) Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then
proceed to r3.
(Line address = 1, Indoor address = 1, Group address = 0 (Individual) are automatically set.)
TEST
2) Push
(1 operation), interrupt the automatic address setup mode, and then proceed to r3.
(Unit No. is displayed.)
CL , and
buttons of the remote controller at the same time for 4 seconds or more
SET
,
b) In case of group operation
Turn on power of the indoor unit of which P.C. board has been replaced with the service P.C. board with any
method in the following items.
1) Turn on power of the replaced indoor unit only.
(However, the remote controller is also connected. Otherwise r3 operation cannot be performed.)
Same as 1) and 2) in item a).
2) Turn on power of the multiple indoor units including replaced indoor unit.
• Only 1 system for twin, triple, double twin
• For all units in the group
Wait for completion of automatic address setup mode (Required time: Approx. 5 minutes) and then proceed to
r3.
∗ The master unit of a group may change by setup of automatic address. The line address/indoor address of the
replaced indoor unit are automatically set to the vacant addresses except addresses belonging to other indoor
units which have not been replaced. It is recommended to make a note that the refrigerant line which includes the
corresponding indoor unit and that the corresponding indoor unit is master or sub in the group control.
– 72 –
r3 Writing of the setup contents to EEPROM
(The contents of EEPROM installed on the service P.C. board have been set up at shipment from the factory.)
TEST
1. Push
,
CL , and
buttons of the remote controller at the same time for 4 seconds or more. 1
SET
(Corresponded with No. in Remote controller )
In group operation control, the master indoor unit No. is displayed at the first time. (If the automatic address
setup mode is interrupted in item 2. - a) - 2) in the previous page, the unit No.
is displayed.)
In this time, the item code (DN) 10 is displayed. The fan of the selected indoor unit operates and the louver
starts swinging if any.
UNIT LOUVER
2. Every pushing
button, the indoor unit numbers in the group control are displayed successively. 2
Specify the indoor unit No. of which P.C. board has been replaced with a service P.C. board.
(When the unit No. ALL is displayed, this operation cannot be performed.)
3. Using the set temperature
/
buttons, the item code (DN) can be moved up and down one by one. 3
4. First set a type and capacity of the indoor unit.
(Setting the type and capacity writes the data at shipment from the factory in EEPROM.)
1) Set the item code (DN) to 10. (As it is)
2) Using the timer time
/
buttons, set up a type. 4
(For example, 4-way air discharge cassette type is 0001) Refer to the attached table.
SET
3) Push
4) Using the set temperature
5) Using the timer time
button. (OK when the display goes on.) 5
/
buttons, set 11 to the item code (DN).
/
buttons, set the capacity.
(For example, 0012 for class 80) Refer to the attached table.
SET
6) Push
button. (OK when the display goes on.)
TEST
7) Push
button to return the status to usual stop status. 6
(Approx. 1 minute is required to start handling of the remote controller.)
5. Next write the contents which have been set up at the local site such as the address setup in EEPROM.
Repeat the above procedure 1. and 2.
6. Using the set temperature
/
buttons, set 01 to the item code (DN).
(Setup of lighting time of filter sign)
7. The contents of the displayed setup data in this time should be agreed with the contents in the previous
memorandum in r1.
1) If data disagree, change the displayed setup data to that in the previous memorandum by the timer time
SET
/
buttons, and then push
2) There is nothing to do when data agrees.
8. Using the set temperature buttons, change the item code (DN).
button. (OK when the display goes on.)
/
As same as the above, check the contents of the setup data and then change them to data contents in the
previous memorandum.
9. Then repeat the procedure 7. and 8.
TEST
10. After completion of setup, push
button to return
the status to the usual stop status. 6
(Approx. 1 minute is required to start handling of
the remote controller.)
<Remote controller>
* 01 to 9F are provided in the item code (DN).
On the way of operation, DN No. may come out.
When data has been changed by mistake and
SET , button has been pushed, the data can be
returned to the data before change by pushing
TEMP
ON / OFF
CL
button if the item code (DN) was not yet
changed.
3
4
6
TIMER SET
TIME
FAN
SAVE
MODE
VENT
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
5
2
1
– 73 –
Memorandum for setup contents (Item code table (Example))
DN
01
02
03
06
0F
10
11
12
13
14
19
1E
Item
Filter sign lighting time
Dirty state of filter
Central control address
Heating suction temp shift
Cooling only
Memo
At shipment
According to type
0000: Standard
0099: Unfixed
0002: +2°C (Floor type: 0)
0000: Shared for cooling/heating
According to model type
According to capacity type
0099: Unfixed
Type
Indoor unit capacity
Line address
Indoor unit address
Group address
0099: Unfixed
0099: Unfixed
Flap type (Adjustment of air direction)
According to type
Temp difference of automatic cooling/
heating selecting control points
0003: 3 deg (Ts ± 1.5)
28
2A
2b
2E
32
5d
60
8b
Automatic reset of power failure
Option
0000: None
0002:
Thermo output selection
Option
0000: Thermo ON
0000:
Sensor selection
0000: Body sensor
0000: Standard
0000: Available
0000: None
High ceiling selection
Timer set (Wired remote controller)
Correction of high heat feeling
Type
Item code [10]
Setup data
Type
Abbreviated name
0014
Compact 4-way cassette
RAV-SM✻✻✻MUT-E
* Initial setup value of EEPROM installed on the service P.C. board
Indoor unit capacity
Item code [11]
Setup data
0006
Type
Abbreviated name
RAV-SM402MUT-E
RAV-SM452MUT-E
RAV-SM562MUT-E
0007
Compact 4-way cassette
0009
* Initial setup value of EEPROM installed on the service P.C. board
– 74 –
11. SETUP AT LOCAL SITE AND OTHERS
11-1. Indoor Unit
11-1-1. Test Run Setup on Remote Controller
<Wired remote controller>
TEST
1. When pushing
button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display.
ON / OFF
Then push
button.
• “TEST” is displayed on LC display during operation of Test Run.
• During Test Run, temperature cannot be adjusted but air volume can be selected.
• In heating and cooling operation, a command to fix the Test Run frequency is output.
• Detection of error is performed as usual. However, do not use this function except case of Test Run be-
cause it applies load on the unit.
2. Use either heating or cooling operation mode for [TEST].
NOTE : The outdoor unit does not operate after power has been turned on or for approx. 3 minutes after
operation has stopped.
TEST
3. After a Test Run has finished, push
button again and check that [TEST] on LC display has gone off.
(To prevent a continuous test run operation, 60-minutes timer release function is provided to this remote
controller.)
<Wireless remote controller>
1. Remove a screw which fixes the serial olate of the receiver part on the wireless remote controller.
Remove the nameplate of the reciver section by inserting a minus screwdriver, etc. into the notch at the
bottom of the plate, and set the Dip switch to [TEST RUN ON].
2. Execute a test operation with
button on the wireless remote controller.
•
,
and LED flash during test operation.
• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is invalid.
Do not use this method in the operation other than test operation because the equipment is damaged.
3. Use either [COOL] or [HEAT] operation mode for test operation.
• The outdoor unit does not operate approx. 3 minutes after power-ON and operation stop.
4. After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip
switch of the sensor section as before. (A 60 minutes timer clearing function is attached to the sensor
section in order to prevent a continuous test operation.)
Receiver unit
Spacer
M4 × 25 screw
(2 pieces)
Nameplate
Notch
Small screw
– 75 –
<In case of wireless remote controller>
Procedure
Description
Turn on power of the air conditioner.
The operation is not accepted for 5 minutes when power has been turned on at first time after installation,
and 1 minute when power has been turned on at the next time and after.
1
After the specified time has passed, perform a test operation.
Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button.
Then change the fan speed to [High] using [Fan] button.
2
3
Test cooling operation
Test heating operation
Set temperature to [18°C] using [Temperature set]
Set temperature to [30°C] using [Temperature set]
button.
button.
After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately
push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].
4
5
After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately
push [Temperature set] button to set to [18°C]. push [Temperature set] button to set to [30°C].
Then repeat the procedure
→
→
→
.
4 5 4 5
After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller,
6
7
[Operation] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.
If the lamps do not flash, repeat the procedure
and after.
2
After the test operation, push [Start/Stop] button to stop the operation.
<Outline of test operation from the wireless remote controller>
Test cooling operation:
Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop
Test heating operation:
Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop
Be sure to set the
air speed to [High]
2
3, 4, 5, 6
2, 7
– 76 –
Item No. (DN) table (Selection of function)
DN
Item
Description
At shipment
01 Filter sign lighting time
0000 : None
0002 : 2500H (4-Way/Duct/Ceiling Type)
0002 for D.I. and S.D.I.
models
02 Dirty state of filter
0000 : Standard
0001 : High degree of dirt (Half of standard time)
0000 : Standard
0099 : Unfixed
03 Central control address
06 Heating suction temp shift
0001 : No.1 unit
0099 : Unfixed
to
0064 : No.64 unit
0000 : No shift
0002 : +2°C
0001 : +1°C
0010 : -10°C
0002 : +2°C
(Floor type 0000: 0°C)
to
(Up to recommendation + 6)
0F Cooling only
0000 : Heat pump
0001 : Cooling only (No display of [AUTO] [HEAT])
0000 : Shared for
cooling/heating
10 Type
0014 : SM562MUT-E
According to model type
According to capacity type
11 Indoor unit capacity
0000 : Unfixed
0012 : 802 type
0017 : 1402 type
0009 : 562 type
0015 : 1102 type
12 Line address
0001 : No.1 unit
0001 : No.1 unit
0000 : Individual
to
to
0030 : No.30 unit
0099 : Unfixed
0099 : Unfixed
0099 : Unfixed
13 Indoor unit address
14 Group address
0064 : No.64 unit
0001 : Master of group
0002 : Sub of group
19
1E Temp difference of
automatic cooling/heating
mode selection COOL
→ HEAT, HEAT → COOL
0000 : 0 deg
(For setup temperature, reversal of
COOL/HEAT by ± (Data value)/2)
to
0010 : 10 deg
0003 : 3 deg
(Ts±1.5)
28 Automatic restart of power
failure
0000 : None
0001 : Restart
0000 : None
2A Option
0002 : Default
2b Thermo output selection
0000 : Indoor thermo ON
0001 : Output of outdoor comp-ON receiving
0000: Thermo. ON
(T10
)
ƒ
2E Option
30 Option
31 Option
0000 : Default
0000 : Default
0000 : Default
0000 : Body sensor
0000 : °C
32 Sensor selection
33 Temperature indication
40 Option
0000 : Body TA sensor 0001 : Remote controller sensor
0000 : °C (celsius)
0001 : °F (Fahrenheit)
0003 : Default
0000 : Standard
5d High ceiling selection
(Air volume selection)
0000 : Standard (Below 3.2m)
0001 : Standard (Below 3.4m)
0003 : Standard (Below 3.5m)
60 Timer set
0000 : Available (Operable)
0001 : Unavailable (Operation prohibited)
0000 : Available
0000 : None
(Wired remote controller)
8b Correction of high heat
feeling
0000 : None
0001 : Correction
– 77 –
11-1-2. Wiring and Setting of Remote Controller Control
2-remote controller control
<Wired remote controller>
(Controlled by 2 remote controllers)
How to set wired remote controller as sub
remote controller
This control is to operate 1 or multiple indoor units
are operated by 2 remote controllers.
(Max. 2 remote controllers are connectable.)
Change DIP switch inside of the rear side of the
remote controller switch from remote controller
master to sub. (In case of RBC-AMT32E)
• When connected 2 remote controllers
operate an indoor unit
Remote controller (Inside of the rear side)
Remote controller
switch (Master)
Remote controller
switch (Sub)
1 2
Sold
separately
Sold
separately
Sub remote
controller
A B
A B
Master remote
controller
1
2
DIP switch
Remote controller
cables (Procured locally)
1
2
Terminal block for
remote controller cables
A B
Indoor unit
1 2 3
<Wireless remote controller>
How to set wireless remote controller to sub
remote controller
1 2 3
Outdoor unit
• When connected 2 remote controllers
operate the twin
Remote controller
switch (Master)
Remote controller
switch (Sub)
Remote controller
inter-unit wire
(Procured locally)
Sold
Sold
separately
separately
A B
A B
[Remote controller
Sub/Master]
DIP SW
Terminal block for
remote controller cables
A B
A B
Indoor unit 1
1 2 3
Indoor unit 2
1 2 3
[Operation]
1. The operation contents can be changed by Last-
push-priority.
1 2 3
Inter-unit wiring
between indoor units
(Procured locally)
Outdoor unit
2. Use a timer on either Master remote controller or
Sub remote controller.
(Setup method)
One or multiple indoor units are controlled by
2 remote controllers.
(Max. 2 remote controllers are connectable.)
– 78 –
11-1-3. Monitor Function of Remote Controller Switch
n Calling of sensor temperature display
<Contents>
Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service monitor
mode from the remote controller.
<Procedure>
CL
TEST
1
Push
+
buttons simultaneously for 4 seconds to
call the service monitor mode.
The service monitor goes on, the master indoor unit No. is
displayed at first and then the temperature of item code 00 is
displayed.
TEMP
ON / OFF
ò
TEMP
TIMER SET
TIME
FAN
SAVE
MODE
VENT
2
Push temperature set
buttons and then change
FILTER
RESET TEST
the item code of data to be monitored.
SET
CL
SWING/FIX
UNIT LOUVER
The item code list is shown below.
2 4 1
<Operation procedure>
3
1 2 3 4
Returned to usual display
Item code
Data name
Item code
Data name
60
61
62
63
64
65
Heat exchanger temp. TE
00
01
02
03
04
Room temp. (control temp.) ∗1
Room temp. (remote controller)
Room temp. (TA)
Outside temp. TO
Discharge temp. TD
Suction temp. TS
—
Indoor unit
Outdoor unit
data
data
Heat exchanger temp. (TCJ)
Heat exchanger temp. (TC)
Heat sink temp. THS
∗1 Only master unit in group control
ò
button to select the indoor unit to be monitored.
UNIT LOUVER
3
4
Push
Each data of the indoor unit and its outdoor units can be monitored.
ò
button returns the status to the usual display.
TEST
Pushing
∗1 The indoor discharge temperature of item code [F8] is the estimated value from TC or TCJ sensor.
Use this value to check discharge temperature at test run.
(A discharge temperature sensor is not provided to this model.)
• The data value of each item is not the real time, but value delayed by a few seconds to ten-odd
seconds.
• If the combined outdoor unit is one before 2 or 3 series, the outdoor unit data [6D], [70], [72] and [73]
are not displayed.
– 79 –
n Calling of error history
<Contents>
The error contents in the past can be called.
<Procedure>
SET
TEST
1
Push
+
buttons simultaneously for
4 seconds or more to call the service check mode.
TEMP
ON / OFF
Service Check goes on, the item code 01 is displayed, and
then the content of the latest alarm is displayed. The number
and error contents of the indoor unit in which an error occurred
are displayed.
TIMER SET
TIME
FAN
SAVE
MODE
VENT
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
2
3
In order to monitor another error history, push the set
temperature
/
buttons to change the error
history No. (Item code).
Item code 01 (Latest) → Item code 04 (Old)
NOTE : 4 error histories are stored in memory.
2 3 1
TEST
Pushing
button returns the display to usual display.
<Operation procedure>
REQUIREMENT
1 2 3
CL
Do not push
unit are deleted.
button, otherwise all the error histories of the indoor
Returned to usual display
(Group control operation)
In a group control, operation of maximum 8 indoor units can be controlled by a remote controller.
The indoor unit connected with outdoor unit (Individual/Master of twin) controls room temperature according to
setting on the remote controller.
<System example>
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
Master
2-1
1-1
3-1
4-1
7-1
Max. 8 units
Remote controller
1. Display range on remote controller
The setup range (Operation mode/Air volume select/Setup temp) of the indoor unit which was set to the
master unit is reflected on the remote controller.
2. Address setup
Turn on power of the indoor unit to be controlled in a group within 3 minutes after setting of automatic
address.
If power of the indoor unit is not turned on within 3 minutes (completion of automatic address setting), the
system is rebooted and the automatic address setting will be judged again.
1) Connect 3 In/Out cables surely.
2) Check line address/indoor address/group address of the unit one by one.
3) The unit No. (line/indoor gout address) which have been set once keep the present status as a rule if the
unit No. is not duplicated with one of another unit.
– 80 –
n Indoor unit power-ON sequence
Power ON
• The unit without power feed waits entirely
→ Waiting status is released by system start
• Reboot when power is fed on the way
<By feed unit>
<Automatic
address judgment>
Not normal
NO
3 minutes elapse
Gr construction check
YES
Normal
∗ Gr normal
1) There is no duplicated indoor unit address.
2) There is no invalid indoor unit address.
3) Individual unit and master/follower units
are not intermingled.
4) Only a unit for individual.
5) A master indoor unit and 1 or more
follower indoor units for Gr.
System start
Automatic address starts.
(Approx. 1 minute up to finish)
<Initial communication>
Outdoor model distinction (10 seconds) (Indoor unit)
Twin Master/follower distinction (Indoor unit)
Gr construction, louver information (Remote controller)
<Cautions at test run>
• Power supply/Indoor/Outdoor serial and Gr wiring: OK
• Powers of all indoor units are turned on within 3 minutes.
• Reception time for remote controller operation
(After power supply was turned on)
1) When address is OK : Approx. 50 seconds
2) In AUTO address
: Approx. 4 to 5 minutes
Remote controller operation is available.
(Approx. 50 seconds after power-ON)
<Usual regular
communication>
Regular communication between indoor units (Every 30 seconds) (Master/Follower)
Regular communication on the identical pipe (every 30 seconds) (Twin Master/Follower)
(When the above status changes, immediately communicates.)
(Repetition)
• In a group operation, if the indoor unit which was fed power after judgment of automatic address cannot
receive regular communication from the master unit and regular communication on identical pipe within
120 seconds after power was turned on, it reboots (system reset).
→ The operation starts from judgment of automatic address (Gr construction check) again.
(If the address of the master unit was determined in the previous time, the power fed to the master unit and
reboot works, the master unit may change though the indoor unit line address is not changed.)
– 81 –
11-2. Setup at Local Site / Others
Model name: TCB-PCNT30TLE2 and TCB-PX30MUE
11-2-1. TCC-LINK Adapter (For TCC-LINK Central Control)
1. Function
This model is an optional P.C. board to connect the indoor unit to TCC-LINK (Central controller).
2. Microprocessor Block Diagram
Indoor unit
Central
controller
TCC-LINK adapter P.C. board
CN40
CN050
Indoor control
P.C. board
CN041
CN51
TCC-LINK
communication circuit
Terminal
resistance
SW01
TCC-LINK
MCC-1440
Terminal block
(A, B)
Communication units:
Total 64 units
Communication distance:
2km
Remote controller
3. Installation Procedure
1) Cut off the slit of bell mouth on the Air Conditioner unit (RAV-SM✻✻✻MUT-E) with nipper or a cutter for
attaching the Connection Interface Kit.
Cutting off portion
(Shaded area)
After cutting off the slit of bell mouth on the unit,
clear up the surface of the slit that there is no burr
on the cutting edge.
2) Attach the Connection Interface Kit (TCB-PX30MUE) on the
Air Conditioner unit (RAV-SM✻✻✻MUT-E).
After insert the hook of the unit to the Connection Interface
Kit hole, and then tighten a Cross slot screw (4 × 14).
Connection Interface Kit
Cross slot screw
– 82 –
3) Install the spacers and P.C. board that are attached to TCB-PCNT30TLE2, on the Connection Interface Kit.
Spacers
(Attached to the TCB-PCNT30TLE2)
P.C. board
(Attached to the TCB-PCNT30TLE2)
4) Remove the 2P terminal block for the communication cable of the electric parts box on the unit, and then
replace with the attached 4P terminal block for the communication wires.
a) Disconnect the lead wires on the 2P terminal block of the electric parts box from the Faston connector
on the unit.
b) Replace the 2P connector with 4P connector on the terminal block.
c) Connect the lead wires that are disconnected as shown above steps a), to the 4P terminal block.
(A), (B) terminals
(Connecting for the Remote Controller)
CN41
(BLUE)
CN41
(BLUE)
5) Connect the connection cables attached to the electric parts block.
Terminal
(U3), (U4) terminals
(For central control)
A B
U3
U4
1
1
3
3
CN41
Main P.C. B
MCC-1402
CN50
(WHITE)
1 2 3 4 5
1 2 3 4 5
CN50
(WHITE)
CN51
1 2 3 4 5
1 2 3 4 5
CN51
Sub P.C. B
MCC-1440
CN41
(BLUE)
CN40
Connecting cable B
Connecting cable A
Wiring diagram
– 83 –
6) Setting for Central Control
For Central Control setting, refer to the Installation Manual of the TCB-PCNT30TLE2.
7) After the installation work has been completed, install the Connection Interface Kit cover to the Connec-
tion Interface Kit tightened with the two screws (4 ×10).
Screw (4 ×10)
Connection
Interface Kit cover
Hook of
Connection Interface Kit
Screw (4 ×10)
4. TCC-LINK Wiring Connection
CAUTION
1) When controlling customized setup collectively, TCC-LINK adapter (This option) is required.
2) In case of group operation or twin/triple operation, the adapter is necessary to be connected to the main unit.
3) Connect the central control devices to the central control system wiring.
4) When controlling collectively customized setup only, turn on only Bit 1 of SW01 of the least line of the system
address No. (OFF when shipped from the factory)
∗ In case of customized setup, the address is necessary to be set up again from the wired remote
controller after automatic addressing.
Central control device
Central control device
Central control devices: Max. 10 units
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Refrigerant line 2
Refrigerant line 3
1 2 3
Refrigerant line 4
1 2 3
Outdoor unit
1 2 3
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
Caution 3
* Wiring for No.1 and 2 only
Maater
unit
Sub
unit
Sub unit
Maater unit
Sub unit
1 2 3
Indoor unit
U3 U4 1 2 3
A B
U3 U4 1 2 3
1 2 3
1 2 3
A B
U3 U4 1 2 3
A B
A B
A B
A B
TCC-LINK adapter
This product
(
)
Caution 1
Caution 2
sold separately
Remote controller
wiring
Remote controller
Remote controller
Remote controller
Remote controller
Group operation (Max. 8 units)
Twin/Triple operation (Example of triple)
Indoor units in all refrigerant lines: Max. 64 units
[If mixed with multi model (Link wiring), multi indoor units are included.]
* However group sub units and twin/triple sub units of customized setup are not included in number of the units.
– 84 –
5. Wiring Specifications
• Use 2-core with no polar wire.
No. of wires
Size
Up to 1000m: twisted wire 1.25mm2
Up to 2000m: twisted wire 2.0mm2
• Match the length of wire to wire length of the central
control system.
2
If mixed in the system, the wire length is
lengthened with all indoor/outdoor inter-unit wire length at side.
• To prevent noise trouble, use 2-core shield wire.
• Connect the shield wire by closed-end connection and apply open process (insulating process) to the last
terminal. Ground the earth wire to 1 point at indoor unit side. (In case of central controlling of digital inverter
unit setup)
CAUTION
1) Closed-end connection of shield wire (Connect all the connecting parts of each indoor unit)
2) Apply open process to the last terminal (insulating process).
Central control device
3) Ground earth wire to 1 point at indoor unit side.
U1 U2
Caution 2
Caution 1
Caution 3
Central control system wiring
Outdoor unit
1 2 3
1 2 3
1 2 3
1 2 3
: TCC-LINK adapter
(This option)
Master
unit
U3 U4 1 2 3
Sub unit
1 2 3
Sub unit
Master unit
Sub unit
1 2 3
Indoor unit
U3 U4 1 2 3
A B
1 2 3
U3 U4 1 2 3
A B
A B
A B
A B
A B
Earth terminal
Remote controller
Remote controller
Remote controller
Remote controller
(Group operation)
(Triple operation)
6. P.C. Board Switch (SW01) Setup
When performing collective control by customized setup only, the setup of terminator is necessary.
• Using SW01, set up the terminator.
• Set up the terminator to only the adapter connected to the indoor unit of least line address No.
Central control device
Central control device
Central control devices: Max. 10 units
U1 U2
U3 U4
U1 U2
U3 U4
Refrigerant line 1
Refrigerant line 2
Refrigerant line 3
1 2 3
Refrigerant line 4
1 2 3
Outdoor unit
1 2 3
1 2 3
Indoor/outdoor inter-unit wire (AC230V serial)
Central control system wiring
* Wiring for No.1 and 2 only
Master
unit
Sub
unit
Sub unit
Master unit
Sub unit
1 2 3
Indoor unit
U3 U4 1 2 3
U3 U4 1 2 3
1 2 3
1 2 3
A B
U3 U4 1 2 3
A B
A B
A B
A B
A B
TCC-LINK adapter
This product
Remote controller wiring
(
)
sold separately
Remote controller
Remote controller
Remote controller
Remote controller
Remote controller
Group operation (Max. 8 units)
Twin/Triple operation (Example of triple)
Line address
SW01 Bit 1
SW01 Bit 2
Remarks
1
ON
OFF
2
OF
OFF
4
OF
OFF
(OFF at shipment from factory)
(OFF at shipment from factory)
Turn SW01 Bit 1 to ON. As status shipped from factory
As status shipped from factory
(Reference) Setup contents of switch
SW01
Terminator
Remarks
Bit 1
OFF
ON
OFF
ON
Bit 1
OFF
OFF
ON
None
100Ω
75Ω
Mixed with multi (Link wiring) at shipment from factory
Central control by digital inverter only
Spare
Spare
ON
43Ω
– 85 –
7. External view of P.C. board assembly
Terminator (SW01)
52
85
8. Address setup
In addition to set up the central control address, it is necessary to change the indoor unit number.
(Line/Indoor/Group address). For details, refer to TCC-LINK Adapter Installation Manual.
11-3. How to Set up Central Control Address Number
When connecting the indoor unit to the central control remote controller using TCC-LINK adapter, it is neces-
sary to set up the central control address number.
• The central control address number is displayed as the line No. of the central control remote controller.
1. Setup from remote controller at indoor unit side
∗ If you use the network adapter P.C. board, it is effective only when No. 7 of setup switch SW01 on P.C.
board is turned off.
<Procedure> Perform setup while the unit stops.
VENT
TEST
1
Push
When group control is executed, first the unit No.
control are selected. In this time, fans of all the selected indoor units are turned on. (Fig. 1)
+
buttons for 4 seconds or more.
is displayed and all the indoor units in the group
UNIT LOUVER
(Keep
displayed status without pushing
button.)
In case of individual remote controller which is not group-controlled, Line address and Indoor unit address
are displayed.
TEMP
2
3
Using temperature setup
buttons, specify item code 03.
TIME
Using timer time
buttons, select the setup data.
The setup data is shown in the table below (Table 1).
SET
(TFig. 1)
4
5
Push
button. (OK if display goes on.)
• To change the item to be set up, return to Procedure 2.
TEST
Push
button.
The status returns to usual stop status.
(Table 1)
TEMP
ON / OFF
Setup data
Central control address No.
TIMER SET
FAN
SAVE
MODE
VENT
0001
0002
0003
:
1
2
3
2
1
3
1
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
:
0064
64
0099
Unset (Setup at shipment from factory)
4
5
– 86 –
12. ADDRESS SETUP
12-1. Address Setup Procedure
When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor
unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address
setup completes with power-ON of the outdoor unit.The operation of the remote controller is not accepted while
automatic address works. (Approx. 4 to 5 minutes)
Setup of line address of outdoor unit,
indoor unit address, and group address
Completion of cabling work
NO
Do you arbitrarily set the
indoor unit address?
YES
NO
NO
(MANUAL)
Is refrigerant line 1 line?
YES
Is group control performed?
YES
(To AUTO address mode)
Do you change setting after
automatic setting at the first time?
YES
Connect one remote controller with
one indoor unit (1 : 1) tentatively with
communication cable.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
Turn on power of outdoor unit.
After completion of address
setup, change is to arbitral
address/group manually.
Setup of automatic
address finishes within
4 to 5 minutes.
(
)
Set to all indoor units one by one.
(
)
END
• When the following addresses are not stored in the neutral memory (IC503) on the indoor P.C. board, a test
run operation cannot be performed. (Unfixed data at shipment from factory)
Item code Data at shipment
Setup data range
0001 (No. 1 unit) to 0064 (No. 64 unit)
Line address
12
13
0099
0099
0001 (No. 1 unit) to 0064 (No. 64 unit)
Max. value of indoor units in the identical refrigerant line
Indoor unit address
0000 : Individual (Indoor units which are not controlled in a group)
0001 : Master unit (1 indoor unit in group control)
Group address
14
0099
0002 : Sub unit (Indoor units other than master unit in group control)
– 87 –
12-2. Address Setup & Group Control
<Terminology>
Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64)
Group address : 0 = Single (Not group control)
1 = Master unit in group control
2 = Sub unit in group control
Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from
the remote controllers and sub indoor units.
(* It has no relation with an indoor unit which communicates serially with the outdoor units.)
The operation mode and setup temperature range are displayed on the remote controller LCD.
(Except air direction adjustment of louver)
Sub unit (= 2)
: Indoor units other than master unit in group operation
Basically, sub units do not send/receive signals to/from the remote controllers.
(Except errors and response to demand of service data)
Header unit (Representative unit) (Master Twin)
: This unit communicates with the indoor unit (follower) which serial-communicates with the
outdoor units and sends/receives signal (Command from compressor) to/from the outdoor
units as the representative of the cycle control in the indoor units of the identical line address
within the minimum unit which configures one of the refrigerating cycles of Twin.
Follower unit (Subordinate unit) (Sub Twin)
: Indoor units excluding the header unit in Twin
This unit communicates with (Header) indoor unit in the identical line address and performs
control synchronized with (Header) indoor unit.
This unit does not perform the signal send/receive operation with the outdoor units. :
No judgment for serial signal error.
12-2-1. System Configuration
1. Single
2. Twin
Outdoor
1-1
Individual
1-1
Master/Header
1-2
Indoor
(Master/Header)
Sub/Follower
Remote controller
3. Triple
1-1
Master/Header
1-2
Sub/Follower
1-3
Sub/Follower
– 88 –
4. Single group operation
• Each indoor unit controls the outdoor unit individually.
2-1
Sub/Header
1-1
Sub/Header
4-1
3-1
Sub/Header
8-1
Sub/Header
Master/Header
5. Multiple groups operation (Manual address setting)
2-1
Sub/Header
1-1
Sub/Header
1-2
3-1
3-2
3-3
Sub/Follower
Sub/Follower
Master/Header
Sub/Follower
• Header unit: The header unit receives the indoor unit data (thermo status) of the follower (Without identical
line address & indoor/outdoor serial) and then finally controls the outdoor compressor match-
ing with its own thermo status.
The header unit sends this command information to the follower unit.
• Follower unit: The follower unit receives the indoor unit data from the header (With identical line address &
indoor/outdoor serial) and then performs the thermo operation synchronized with the header unit.
The follower unit sends own thermo ON/OFF demand to the header unit.
(Example)
No. 1-1 header unit sends/receives signal to/from No. 1-2 and No. 1-3 follower units.
(It is not influenced by the line 2 or 3 address indoor unit.)
– 89 –
12-2-2. Automatic Address Example from Unset Address (No miswiring)
1. Standard (One outdoor unit)
1) Single
2) Twin
3) Triple
(1-1)
(1-2)
(1-1)
1-2
(1-2)
(1-3)
1-1
Individual
1-2
Master/Header
1-1
1-3
1-1
Sub/Follower
Sub/Header
Master/Follower
Sub/Follower
(Master/Header)
Only turning on source power supply (Automatic completion)
2. Group operation
(Multiple outdoor units = Multiple indoor units with serial communication only, without twin)
2-1
Sub/Header
1-1
Sub/Header
3-1
8-1
Sub/Header
Master/Header
(Max. : 8 units)
Only turning on source power supply (Automatic completion)
3. Multiple groups operation
Single
Twin
Triple
2-1
Sub/Header
1-1
Sub/Header
2-3
3-1
Sub/Header
3-3
1-2
Sub/Follower
Master/Follower
Sub/Follower
Change is necessary
Manually change addresses of the multiple follower units
simultaneously from the remote controller.
2-1
1-1
1-2
3-1
3-2
3-3
– 90 –
12-3. Address Setup (Manual Setting from Remote Controller)
In case that addresses of the indoor units will be
determined prior to piping work after cabling work
(Example of 2-lines cabling)
(Real line: Cabling, Broken line: Refrigerant pipe)
Outdoor Outdoor
• Set an indoor unit per a remote controller.
• Turn on power supply.
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
Indoor
A B
Indoor
A B
Indoor
A B
Indoor
A B
1
2
2
2
1
2
2
2
2
Line address → 1
Indoor unit address → 1
Group address → 1
SET
CL
TEST
A B
1
2
Push
+
+
buttons simultaneously
for 4 seconds or more.
Remote controller
For the above example, perform setting by
connecting singly the wired remote controller
without remote controller inter-unit cable.
(← Line address)
Using the temperature setup
set 12 to the item code.
/
buttons,
Group address
Individual : 0000
Master unit : 0001
3
4
5
Using timer time
/
buttons, set the line address.
In case of group control
Sub unit
: 0002
SET
Push
button. (OK when display goes on.)
(← Indoor unit address)
Using the temperature setup
/
buttons, set 13 to the item code.
6
7
8
Using timer time
/
buttons, set 1 to the line address.
SET
Push
button. (OK when display goes on.)
(← Group address)
Using the temperature setup
/
buttons, set 14 to the item code.
9
Using timer time
/
buttons, set 0000 to Individual, 0001 to Master unit, and 0002 to sub unit.
SET
10
11
Push
button. (OK when display goes on.)
TEST
Push
button.
Setup completes. (The status returns to the usual stop status.)
TEMP.
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
2, 5, 8
3, 6, 9
END 11
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
4, 7, 10
1
<Operation procedure>
1 2 3 4 5 6 7 8 9 10 11 END
– 91 –
12-4. Confirmation of Indoor Unit No. Position
1. To know the indoor unit addresses though position of the indoor unit body is recognized
• In case of individual operation (Wired remote controller : indoor unit = 1 : 1)
(Follow to the procedure during operation)
<Procedure>
ON / OFF
1
2
Push
Push
button if the unit stops.
button.
UNIT LOUVER
Unit No. 1-1 is displayed on LCD.
TEMP.
ON / OFF
(It disappears after several seconds.)
1
TIMER SET
TIME
FAN
SAVE
MODE
VENT
The displayed unit No. indicate line address and
indoor unit address.
Operation
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
(When other indoor units are connected to the
identical remote controller (Group control unit), other
unit numbers are also displayed every pushing
UNIT LOUVER
button.
2
<Operation procedure>
END
1 2
2. To know the position of indoor unit body by address
• To confirm the unit No. in the group control
(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)
<Procedure>
The indoor unit numbers in the group control are
successively displayed, and fan, louver, and drain pump
of the corresponding indoor unit are turned on.
(Follow to the procedure during operation)
VENT
TEST
1
Push
4 seconds or more.
and
buttons simultaneously for
TEMP.
ON / OFF
TIMER SET
TIME
FAN
SAVE
MODE
VENT
• Unit No.
is displayed.
1
3
• Fans and louvers of all the indoor units in the
group control operate.
FILTER
RESET TEST
SET
CL
SWING/FIX
UNIT LOUVER
UNIT LOUVER
2
Every pushing
in the group control are successively displayed.
button, the unit numbers
2
• The unit No. displayed at the first time indicates the
master unit address.
<Operation procedure>
• Fan and louver of the selected indoor unit only
operate.
END
1 2 3
TEST
3
Push
button to finish the procedure.
All the indoor units in the group control stop.
– 92 –
13. DETACHMENTS
13-1. Indoor Unit
Ceiling panel: RBC-UM11PG(W)E
Preparing work:
1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply
breaker. (Otherwise an electric shock may be caused.)
2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc.
No.
Part name
Procedure
Remarks
1
Suction grille
1. Detachment
Suction grille
Ceiling panel
1) Slide hooks (2 positions) of the suction grille
to inner side, and then hang down the
suction grille.
2) Take off the strap that connects the panel
and the suction grille, and then lift up shaft of
the suction grille to remove the suction grille.
Hook of suction grille
Hook hole of ceiling panel
Hook of
fall-preventive strap
2. Attachment
1) Hook shaft of the suction grille to the panel.
2) Hook strap of the suction grille to the original position of the panel.
3) Close the suction grille and slide the hooks outward to fix it.
2
Electric parts
cover
1. Detachment
1
1) Perform work of procedure
-1.
Screws
Temporary hanging hook
2) Take off screws (Ø4 × 10, 3 pcs.) fixing the
electric parts cover.
3) Remove the electric parts cover from the
temporary hanging hook of the electric parts
cover, and then open the cover.
2. Attachment
1) Close the electric parts cover and hook the
cover hole to the temporary hanging hook.
2) Tighten the fixing screws. (Ø4 × 10, 3 pcs.)
Screw
Unnecessary to remove this hook.
– 93 –
No. Part name
Procedure
Remarks
3
Adjust
corner cover
1. Detachment
1) Perform work of procedure of
1
-1.
2) Turn clockwise screws (4 positions) at the
suction port corner until adjust corner
cover rises up.
NOTE)
When you work, keep the torque at below 12N•m.
Do not use an electric screwdriver; otherwise the
mechanism of adjust corner cover may be
damaged and not be removed.
1
2
Torque~12N·m
3) Pull downward the risen-up part of adjust
corner cover and remove it.
4) Remove the strap of adjust corner cover.
1
2
2. Attachment
1) Attach the strap of adjust corner cover to
the panel, hook claws of adjust corner
cover to the panel corner, and then push
the opposite side into the panel.
2) Turn screws (4 positions) of the suction
port corner counterclockwise until bump
between adjust corner cover and panel
disappears.
NOTE)
When you work, keep the torque at below 12N•m.
Do not use an electric screwdriver;
otherwise the mechanism of adjust corner cover
may be damaged and not be removed.
Torque~12N·m
3
4
Ceiling
panel
1. Detachment
1
2
1) Perform works of procedure
-1-,
-1,
Hanging
3
and
-1.
section of tentative
hook of ceiling panel
2) Remove the flap connector (CN33, White,
5P) connected to the control P.C. board
and then take off the lead wire from the
clamp.
Temporary
bracket
Push to remove
Drain piping
corner
NOTE)
Remove the connectors after unlocking the lock
of the housing.
3) Take off screws (M5, 4 pcs.) fixing the
ceiling panel.
4) Push the temporary bracket to inner side
to remove the ceiling panel.
Ceiling panel
2. Attachment
Temporary
bracket
1) Hook the panel to the temporary bracket of
the drain pan of the main body.
NOTE)
The panel has directionality. Therefore mount the
panel according to the temporary bracket and the
bracket mounting position.
Washer
based screw
Hanging section
of temporary bracket
2) Tighten the fixing screws. (M5, 4 pcs.)
CN33
3) Connect flap connector of the ceiling
panel to the connector
(CN33, White, 5P) of the control
P.C. board.
Cable clamp
– 94 –
No. Part name
Procedure
Remarks
5
1. Detachment
1) Perform works of procedure
Control P.C.
board
1
2
-1- and
-1.
2) Remove the connectors connected from the control P.C. board to other parts.
CN33 : Flap motor (5P, White)
CN34 : Float switch (3P, Red)
CN41 : Terminal block of remote controller (3P, Blue)
CN40 : Terminal block of crossover between inside and outside (5P, Black)
CN68 : Drain pump (3P, Blue)
CN67 : Terminal block of power supply (3P, Black)
CN101: TC sensor (2P, Black)
CN102: TCJ sensor (2P, Red)
CN104: Room temp sensor (2P, Yellow)
CN333: Fan motor power supply (5P, White)
CN334: Fan motor position detection (5P, White)
NOTE)
Remove the connectors after
unlocking the lock of the housing.
Ferrite core for sensor lead
3) Unlock the lock of the card
edge spacer (6 positions)
and then remove the
control P.C. board.
Card edge spacer
Drawing-out port of lead wire Ferrite core for fan motor
2. Attachment
1) Fix the control P.C. board to the card edge spacer. (6 positions)
2) Connect the connectors as original before being removed in item 1.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before remov-
ing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the
sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires
and fix surely with the cord clamp.
Adhere on the
transformer.
<Details of sensor lead wire drawing>
E
Cord clamp
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Turn up the fan motor lead wires
and fix surely with the cord clamp.
(There should be no catching of
lead wire by P.C. board.)
After mounting the piping
cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires
of the fan motor and arrange them
as shown in the figure.
<Details of piping cover assembly and mounting>
<Details of fan motor lead wire drawing>
– 95 –
No. Part name
Procedure
Remarks
1. Detachment
1) Perform works of procedure
6
Electric
parts box
1
2
-1-and
-1.
2) Remove connectors of the lead wire connected to the following connectors of the control
P.C. board.
CN33 : Flap motor (5P, White)
CN34 : Float switch (3P, Red)
CN68 : Drain pump (3P, Blue)
CN101: TC2 sensor (2P, Black)
CN102: TCJ sensor (2P, Red)
CN333: Fan motor power supply (5P, White)
CN334: Fan motor position detection (5P, White)
NOTE)
Remove the connectors after unlocking the lock of the housing.
3) Remove each lead wire
from cord clamps in the
electric parts box.
Ferrite core for sensor lead
4) Remove the power supply
wiring, remote controller
wiring, and crossover wiring.
5) Take off screws
(Ø4 × 10, 2 pcs.)
Card edge spacer
Drawing-out port of lead wire Ferrite core for fan motor
2. Attachment
1) Tighten screws (Ø4 × 10, 2 pcs.) fixing the electric parts box.
2) Connect the connectors as original before being removed in item 1.
3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside
and outside.
NOTE)
For drawing of each wire and position of ferrite core, perform wiring same as those before remov-
ing. If there is incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires with cord clamps (2 positions) so that
it does not slacken at P.C. board side and draw wires as shown in the figure.
Cord clamp
Tighten together the shield wires of the
sensor lead wires and the remote controller.
Be careful that other sensor does not fall out.
Cord clamp
Arrow view E
Please note the
float SW lead wires are
set at inner side of the
fan motor lead wires.
Turn up the sensor lead wires
and fix surely with the cord clamp.
Adhere on the
transformer.
<Details of sensor lead wire drawing>
E
Cord clamp
As shown in the figure,
hook the sensor lead wires
to claw of the piping cover
and then pass them so that
they are stored in the groove.
Turn up the fan motor lead wires
and fix surely with the cord clamp.
(There should be no catching of
lead wire by P.C. board.)
After mounting the piping
cover, check each lead wire
does not hit the liquid pipe.
Clamp (yellow, gray, black) lead wires
of the fan motor and arrange them
as shown in the figure.
<Details of piping cover assembly and mounting>
<Details of fan motor lead wire drawing>
– 96 –
No. Part name
Procedure
Remarks
7
Bell mouth
1. Detachment
1) Perform work of procedure
1
-1.
Fixing claws
for lead wires
2) Take off the lead wires of the drain pump, float
switch, and fan motor from the bell mouth.
Bell mouth
3) Take off fixing screws of the bell mouth.
(Ø4 × 10, 4 pcs.)
2. Attachment
1) Mount the bell mouth with screws.
(Ø4 × 10, 4 pcs.)
2) Perform wiring as original before being
removed.
NOTE)
Pinch lead wire of the drain pump and float switch
with lead wire fixing claws of the bell mouth and
perform wiring along the guide.
4 screws
Fixing claws
for lead wires
8
Turbo fan
1. Detachment
7
1) Perform work of procedure
-1.
Fan motor fixing
M6 nut
Drawing-out port of
fan motor lead wire
2) Take off the nut (M6 nut 1 pc.) of the turbo fan.
NOTE)
Use a box wrench for attachment and detachment of
the turbo fan. If using a monkey wrench etc, the
other parts may be damaged in work.
2. Attachment
1) Insert the turbo fan into the fan motor so that
boss of the turbo fan matches with cut surface
of the fan motor, and then tighten it with nut.
NOTE)
Tightening torque of turbo fan: 5.9 ± 0.6N.m
Apply looseness-preventing agent to the nut after
tightening.
Turbo fan
– 97 –
No. Part name
Procedure
Remarks
9
Fan motor
1. Detachment
1) Perform work of procedure
Fixing nut for fan motor
8
.
2) Take off screws fixed with lead holding bracket
of the fan motor. (Ø4 × 10, 2 pcs.)
3) Open wiring holding part of the fan motor lead
holding bracket and then take off the fan motor
lead wire from the bracket.
4) Take off fixing nuts for the fan motor to remove
the fan motor.(M 3 pcs.)
Fan motor
NOTE)
Use a box wrench for attachment and detachment of
the fan motor fixing nuts; otherwise contact or
damage for other parts may be caused.
Fan motor
earthh wire
Fixing screw
Holding metal fitting
for fan motor lead wire
2. Attachment
1) Mount the fan motor with the fixing nuts.
NOTE)
Tightening torque of turbo fan: 5.9 ± 0.6N.m
Apply looseness-preventing agent (as paints) to the
nut after tightening.
2) Attach the fan motor lead wire holder.
NOTE)
• For the fan motor lead wire, fix the lead wire
holding bracket along concave part of the ceiling
panel. (There is no catch-in of lead wire and ceiling
panel.)
• When fixing the lead wire bracket, tighten fan
motor earth together with the lead wire.
• For this work, do not use an electric screwdriver.
• Take note the damage of earth terminal.
3) Bend the lead wire holding part and fix the fan
motor lead wire.
Wiring holding bracket
NOTE)
Be sure that the lead wire does not come to contact
with the heat exchanger.
Fan motor lead wire
Concave part
of ceiling panel
– 98 –
No. Part name
Procedure
Remarks
10
Drain pan
1. Detachment
1) Perform works of procedure
2 screws
4
7
-1 and
-1.
2) Remove the drain cap and extract drain water
accumulated in the drain pan.
NOTE)
Socket of drain pan
When removing the drain cap, be sure to receive
drain water with a bucket, etc.
3) Take off screws fixing the drain pan to remove
the drain pan. (Ø4×10, 4 pcs.)
Drain pan
2. Attachment
1) Insert the drain cap into the drain pan.
NOTE)
Put a stick or others into hole at center of the drain
cap, and then insert the drain cap until it strikes on
the socket of the drain pan.
2 screws
2) Draw each lead wire to the correct positions,
and then insert the drain pan into the main
unit.
NOTE)
Piping holder rib
Draw lead wires of the drain pump and the float
switch along the guide of the cabinet. Insert the drain
pan along the guides of sensors (TC1, TC2, TCJ)
and PMV lead wire.
The drain pan and each lead wire are not caught in;
otherwise water leakage may be caused.
3) Fix the drain pan with screws. (Ø4 × 10, 4 pcs.)
Piping holder
Hose band
Lead wire
11 Drain pump
assembly
1. Detachment
Drain pummp assembly
10
1) Perform work of procedure
-1.
2) Pick up the hose band and slide it from the
pump connecting part to remove the drain
hose.
3) Take off screws (Ø4 × 10, 3 pcs.) fixing the
drain pump assembly, and then move hooking
claw (1 position) of the main body from the
drain pump assembly to remove the drain
pump assembly.
2. Attachment
White marked position
1) Fix the drain pump assembly as original.
Drainn hose
NOTE)
For fixing, use a hooking claw (1 position) and
screws (3 positions).
When screwing, be sure not to run on the hooking
claw at main body side.
2) Mount the drain hose and the hose band as
original.
NOTE)
Insert the drain hose up to the end of pump connect-
ing part, and then put the band at white marked
position of the hose.
Fixingg screw
for draain pump
Hooking claw
for drain pump
– 99 –
No. Part name
Procedure
Remarks
12
Heat
1. Detachment
exchanger
1) Recover refrigerant gas.
2) Remove the refrigerant pipe at indoor unit
side.
10
Pipingg cover
3) Perform work of procedure
-1.
4) Take off screws (Ø4 × 10, 3 pcs.) fixing the
piping cover to remove the piping cover.
5) While holding the heat exchanger, remove
fixing band and fixing screws (Ø4 × 10, 3 pcs.)
and then remove the heat exchanger.
2. Attachment
1) Mount parts in order, heat exchanger
→ fixing band → piping cover → drain pan
→ bell mouth → electric parts box as original.
3 screws
NOTE)
Arrange wires as original.
2) Attach the removed connectors and wires as
original.
3) Connect the refrigerant pipe as original, and
then perform vacuuming.
Fixing band
Fixing band for
heat exchanger
<Details of sensor lead wire drawing>
TCJ sensor
(Black)
TC sensor
(Red)
2 fixing screws for heat exchanger
Wind pipe cover over the header,
attach a sensor on it.
(Do not set the head of tie wrap upward.)
– 100 –
14. EXPLODED VIEWS AND PARTS LIST
14-1. Ceiling Panel
RBC-UM11PG(W)E
308
316
302
315
307
314
309
311
304
312
310
313
305
303
306
301
Location
Part No.
No.
Location
No.
Description
Part No.
Description
301
302
303
304
305
306
307
308
43109414 Grille, Air Inlet
4302C059 Motor, Louver
43180332 Air Filter
43497012 Screw
43100322 Cover, Panel Ass’y
43107259 Grille, Catch
309
310
311
312
313
314
315
316
43122091 Joint, Kit (A)
43122092 Joint, Kit (B)
43122093 Louver
43107261 Outlet, Air Form
43100369 Panel
43107262 Fix, Motor
43107263 Fix, Motor
43160580 Lead, Motor
43122089 Cover, Joint (For Joint)
43122090 Cover, Joint (For Motor)
– 101 –
14-2. Compact 4-way Air Discharge CassetteType
234
223
202
203
221
231
228
201
209
235
236
241
205
247
233
237
222
224
242, 249
238, 239,
240, 248
226
225
227
230
211
219 216 217
– 102 –
Model name RAV-SM
Location
No.
Part No.
Description
Fan Ass’y, Turbo
402MUT-E
452MUT-E
562MUT-E
201
202
203
205
209
211
213
215
216
217
219
220
221
222
223
224
225
226
227
228
230
231
233
234
235
236
237
238
239
240
241
242
247
248
249
43120225
43122094
43172185
43121738
4314J329
4314Q034
43047685
43149351
43047688
43149353
43147195
43049697
43170244
43079249
43060029
43163052
43119482
43170248
43119483
43097212
43019904
43179135
43139137
43162056
43177001
43151289
43179126
43166002
43166004
43166005
43166006
4318T743
43197155
43166011
431S8127
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
—
1
1
1
—
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
—
1
1
1
—
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
3
1
1
1
3
1
1
1
1
1
3
—
—
Bell Mouth
Pan Ass’y, Drain
Motor, Fan, SWF-230-60-1R
Refrigeration, Cycle Ass’y
Distributor Ass’y
Nut, Flare, 1/4 IN
Socket, 1/4 IN
Nut, Flare, 1/2 IN
Socket, 1/2 IN
Bonnet, 1/2 IN
Bonnet
Hose, Drain
Band, Hose
Filter, Noise
Holder, Lead, Fan Motor
Cover Ass’y Body
Hose, Drain
Cover, Pipe
Nut
Holder, Sensor
Band, Hose
Rubber, Cushion
Cover, E-Box
Pump, Drain
Switch, Float
Rubber, Pump Drain
Remote Controller, SX-A1EE
Remote Controller, SX-A11JE2
Remote Controller, EX-W2JE2
Remote Controller, WH-H1JE2
Owner’s Manual
Washer
Remote Controller, SX-A4EE
Owner’s Manual
– 103 –
402
401
405
404
403
Location
No.
Part No.
Description
401
402
43160565 Terminal Block, 3P,
AC250V, 20A,
43050425 Sensor Ass’y, Service
TC (F6)
403
404
43050426 Sensor, Service, TA
43160568 Terminal, 2P,
AC30V/DC42V, 1A
405
4316V323 P.C. Board Ass’y,
MMC-1402 (220V – 240V)
– 104 –
WARNINGS ON REFRIGERANT LEAKAGE
Important
Check of Concentration Limit
NOTE 2 :
The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its concentration will not
exceed a set limit.
The standards for minimum room volume are as follows.
(1) No partition (shaded portion)
The refrigerant R410A which is used in the air
conditioner is safe, without the toxicity or combustibility of
ammonia, and is not restricted by laws to be imposed
which protect the ozone layer. However, since it contains
more than air, it poses the risk of suffocation if its
concentration should rise excessively. Suffocation from
leakage of R410A is almost non-existent. With the recent
increase in the number of high concentration buildings,
however, the installation of multi air conditioner systems
is on the increase because of the need for effective use
of floor space, individual control, energy conservation by
curtailing heat and carrying power etc.
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas
(opening without a door, or an opening 0.15% or
larger than the respective floor spaces at the top or
bottom of the door).
Most importantly, the multi air conditioner system is able
to replenish a large amount of refrigerant compared with
conventional individual air conditioners. If a single unit of
the multi conditioner system is to be installed in a small
room, select a suitable model and installation procedure
so that if the refrigerant accidentally leaks out, its
concentration does not reach the limit (and in the event
of an emergency, measures can be made before injury
can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device.
Outdoor unit
Refrigerant piping
Indoor unit
(3) If an indoor unit is installed in each partitioned room
and the refrigerant piping is interconnected, the
smallest room of course becomes the object. But
when a mechanical ventilation is installed interlocked
with a gas leakage detector in the smallest room
where the density limit is exceeded, the volume of
the next smallest room becomes the object.
The concentration is as given below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m³)
≤ Concentration limit (kg/m³)
Refrigerant piping
Outdoor unit
The concentration limit of R410A which is used in multi
air conditioners is 0.3kg/m³.
Very
small
Indoor unit
room
NOTE 1 :
Small
room
Medium
room
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should be
as charged in each independent device.
Large room
Mechanical ventilation device - Gas leak detector
NOTE 3 :
The minimum indoor floor area compared with the
amount of refrigerant is roughly as follows:
(When the ceiling is 2.7m high)
Outdoor unit
e.g., charged
e.g.,
amount (10kg)
charged amount (15kg)
40
Range below the
35
m²
density limit
of 0.3 kg/m³
30
25
20
15
10
5
(countermeasures
not needed)
Room A Room B Room C Room D Room E Room F
Indoor unit
Range above
the density limit
of 0.3 kg/m³
(countermeasures
needed)
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in
rooms A, B and C is 10kg.
The possible amount of leaked refrigerant gas in
rooms D, E and F is 15kg.
0
10
20
30
Total amount of refrigerant
kg
TOSHIBA CARRIER CORPORATION
23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN
Copyright © 1999 to 2007 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.
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