®
®
CHAMPION SERIES
SINGLE PACKAGE AIR CONDITIONERS
GAS/ELECTRIC, AIR-COOLED
Supersedes: 035-18265-000-A-0801
035-18265-001-A-0202
INSTALLATION INSTRUCTION
MODELS D1NA018 THRU 048
AND MODEL D2NA060
1-1/2 THRU 5 TON
(10 SEER)
GENERAL
YORK Model D1NA and D2NA units are cooling/heating air con-
ditioners designed for outdoor installation. Only gas piping, elec-
tric power and duct connections are required at the point of
installation.
The gas-fired heaters have hot surface to pilot ignition. The tu-
bular heat exchangers are aluminized steel.
This appliance is not to be used for temporary heating of build-
ings or structures under construction.
INSPECTION
As soon as a unit is received, it should be inspected for possi-
ble damage during transit. If damage is evident, the extent of
the damage should be noted on the carrier's freight bill. Asepa-
rate request for inspection by the carrier's agent should be
made in writing. Refer to Form 50.15-NM for additional infor-
mation.
REPLACEMENT PARTS
• Refer to Replacement Parts, Form 530.46-RP1Y, RP2Y,
RP3Y, RP4Y and RP5Y for Key Replacement Parts.
WARNING: If the information in this manual is
All forms referenced in this instruction may be ordered from:
not followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Standard Register
Norman, OK 73069
Toll Free: Tel. 877-318-9675/Fax. 877-379-7920
—
Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
APPROVALS
Design certified by CGA and AGA listed as follows:
1. For use as a forced air furnace with cooling unit.
2. For outdoor installation only.
—
WHAT TO DO IF YOU SMELL GAS
3. For installation directly on combustible flooring or, in U.S.,
on wood flooring or Class A; B; C roof covering material.
4. For installation on combustible material.
· Do not try to light any appliance.
· Extinguish any open flames.
5. For use with natural gas and/or propane (LP) gas.
· Do not touch any electrical switch; do
not use any phone in your building.
CAUTION
· Immediately call your gas supplier from
a neighbor's phone. Follow the gas
supplier's instructions.
· If you cannot reach your gas supplier,
call the fire department.
THIS PRODUCT MUST BE INSTALLED IN STRICT COMPLIANCE WITH
THE ENCLOSED INSTALLATION INSTRUCTIONS AND ANY APPLICABLE
LOCAL, STATE, AND NATIONAL CODES INCLUDING, BUT NOT LIMITED
TO, BUILDING, ELECTRICAL, AND MECHANICAL CODES.
WARNING
INCORRECT INSTALLATION MAY CREATE A CONDITION WHERE THE
OPERATION OF THE PRODUCT COULD CAUSE PERSONAL INJURY
OR PROPERTY DAMAGE.
Installer should pay particular attention to the words: NOTE, CAUTION and WARNING. Notes are intended to clarify or make
the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury
and/or equipment damage may result if installation procedure is not handled properly.
035-18265-001-A-0202
INSTALLATION
Not suitable for use with conventional venting systems.
gle iron frame providing adequate support under the
compressor/condenser section.
LIMITATIONS
5. Maintain level tolerance of unit to 1/8" maximum.
These units must be installed in accordance with the following
national and local safety codes.
RIGGING OR HANDLING
Care must be exercised when moving the unit. Do not remove
any packaging until the unit is near the place of installation. Rig
unit with slings placed under the unit. Spreader bars of suffi-
cient length should be used across the top of the unit.
1. National Electrical Code ANSI/NFPS No. 70 or Canadian
Electrical Code Part 1, C22.1 (latest editions).
2. National Fuel Gas Code Z223.1 or CAN/CGA B149.1 or .2
Installation Code.
3. Local gas utility requirements.
BEFORE LIFTING A UNIT, MAKE SURE THAT ITS WEIGHT
IS DISTRIBUTED EQUALLY ON THE CABLES SO THAT IT
WILL LIFT EVENLY.
4. Local plumbing and waste water codes and other applica-
ble local codes.
Refer to Table 1 for unit application data and to Table 2 for gas
heat application data.
Units may also be moved or lifted with a fork-lift. Slotted open-
ings in the skid are provided for this purpose. Forks must pass
completely through the base.
If components are to be added to a unit to meet local codes, they
aretobeinstalledatthedealer'sand/orthecustomer'sexpense.
Refer to Table 7 for unit weights and to Figure 4 for approximate
center of gravity.
Size of unit for proposed installation should be based on heat
TABLE 1 - UNIT APPLICATION DATA
208/230V3
460V
187 / 2533
414 / 504
518 / 630
CLEARANCES
Voltage Variation
Min. / Max.1
All units require certain clearances for proper operation and
service. Refer to Figure 5 for the clearances required for com-
bustion, construction, servicing and proper unit operation.
575V
Wet Bulb Temperature (°F) of Air on
Evaporator Coil, Min. / Max.
57 / 72
Dry Bulb Temperature (°F) of Air on
45 / 120
Condenser Coil, Min.2 / Max.
WARNING:Do not permit overhanging structures or shrubs to
obstruct the condenser air discharge, combustion
air inlet or vent outlet.
1 Rated in accordance with ARI Standard 110, utilization"A".
2 A low ambient accessory is available for operation down to 0°F
3 “T1" transformer primary tap must be moved from the 230 volt connection to the 208 volt
connection for low voltage applications of 208 volt and below.
DUCT WORK
loss/heat gain calculations made in accordance with industry
recognized procedures identified by the Air Conditioning Con-
tractors of America.
These units are adaptable to downflow use as well as rear sup-
ply and return air duct openings. To convert to downflow, use
the following steps:
LOCATION
Use the following guidelines to select a suitable location for
these units.
1. Remove the duct covers found in the bottom return and
supply air duct openings. There are four (4) screws secur-
ing each duct cover (save these screws to use later).
1. Unit is designed for outdoor installation only.
2. Install the duct covers, removed in step one, to the rear
supply and return air duct openings. Secure with the four
(4) screws used in step one.
2. Condenser must have an unlimited supply of air. Where a
choice of location is possible, position unit on either north or
east side of building.
3. Seal the duct covers with silicone caulk.
WARNING:Excessive exposure of this furnace to contami-
nated combustion air may result equipment dam-
age or personal injury. Typical contaminates
include: permanent wave solutions, chlorinated
waxes and cleaners, chlorine based swimming
pool chemicals, water softening chemicals, carbon
tetrachloride, Halogen type refrigerants, cleaning
solvents (e.g. perchloroethylene), printing inks,
paint removers, varnishes, hydrochloric acid, ce-
ments and glues, antistatic fabric softeners for
clothes dryers, masonry acid washing materials.
Duct work should be designed and sized according to the
methods of the Air Conditioning Contractors of America
(ACCA), as set forth in their Manual D.
A closed return duct system shall be used. This shall not pre-
clude use of economizers or ventilation air intake. Flexible
joints may be used in the supply and return duct work to mini-
mize the transmission of noise.
CAUTION: When fastening duct work to the side duct flanges on
the unit, insert the screws through the duct flanges only.
DO NOT insert the screws through the casing. Outdoor
duct work must be insulated and waterproofed.
3. For ground level installation, a level pad or slab should be
used. The thickness and size of the pad or slab used should
meet local codes and unit weight. Do not tie the slab to the
building foundation.
NOTE: Be sure to note supply and return openings.
4. For roof top installation, be sure the structure will support
the weight of the unit plus any field installed components.
Unit must be installed on a level roof curb or appropriate an-
Unitary Products Group
3
035-18265-001-A-0202
Refer to Figure 5 for information concerning rear and bottom
supply and return air duct openings.
Refer to Figure 5 for location of these access panels and mini-
mum clearances.
THERMOSTAT
ROOF CURB
The room thermostat should be located on an inside wall ap-
proximately 56" above the floor where it will not be subject to
drafts, sun exposure or heat from electrical fixtures or appli-
ances. Follow manufacturer's instructions enclosed with the
thermostat for general installation procedure. Four color coded
insulated wires (minimum #18 AWG) should be used to con-
nect thermostat to unit. See Figure 1.
On applications when a roof curb is used, the unit must be posi-
tioned on the curb so the front of the unit is tight against the
curb.
FILTERS
Single phase units are shipped without a filter and is the responsi-
bility of the installer to secure a filter in the return air ductwork or
install a Filter/Frame Kit (1FF0110 for the D1NA018 thru
D1NA042 and 1FF0112 for the D1NA048 and D2NA060).
POWER AND CONTROL WIRING
Field wiring to the unit must conform to provisions of the current
N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordinances.
The unit must be electrically grounded in accordance with local
codes or, in their absence, with the N.E.C./C.E.C. Voltage tol-
erances which must be maintained at the compressor termi-
nals during starting and running conditions are indicated on the
unit Rating Plate and Table 8.
A filter rack and filters are standard on three phase units.
NOTE: Filters on the D1NA048 and D2NA060 units require
the use of a " nut driver for removal.
Filters must always be used and must be kept clean. When fil-
ters become dirt laden, insufficient air will be delivered by the
blower, decreasing your units efficiency and increasing operat-
ing costs and wear-and-tear on the unit and controls.
The wiring entering the cabinet must be provided with me-
chanical strain relief.
A fused disconnect switch should be field provided for the unit. If
any of the wire supplied with the unit must be replaced, replace-
ment wire must be of the type shown on the wiring diagram.
Filters should be checked monthly especially since this unit is
used for both heating and cooling.
CONDENSATE DRAIN
Electrical line must be sized properly to carry the load. Each
unit must be wired with a separate branch circuit fed directly
from the meter panel and properly fused.
A condensate trap is recommended to be installed in the con-
densate drain. The plumbing must conform to local codes. Use
a sealing compound on male pipe threads. Install the conden-
sate drain line ( “ NPTF) to spill into an open drain.
Refer to Figure 1 for typical field wiring and to the appropriate unit
wiring diagram for control circuit and power wiring information.
SERVICE ACCESS
Access to all serviceable components is provided by the follow-
ing removable panels:
COMPRESSORS
• Blower compartment
• Gas control/electrical service access
Units are shipped with compressor mountings factory-adjusted
for shipping. CAUTION: Loosen compressor mounting bolts
half turn before operating unit.
NOTE:
HEAT ANTICIPATOR
SHOULD BE SET AT 0.35
AMPS FOR ALL MODELS.
THERMOSTAT
CONTROL WIRING
** = Minimum wire size of 18 AWG
R
R
wire shuold be used for all field
installed 24 volt wire.
CAUTION: Label all wires prior
to disconnection when
servicing controls.
G
G
PROGRAMABLE
THERMOSTAT ONLY
Y
Y
24 VOLT
Wiring errors can cause
TRANSFORMER
improper and dangerous
operation. Verify proper
operation after servicing.
W
W
C
C
P O W E R
WIRING
REFER TO ELECTRICAL
DATA TABLES TO SIZE THE
DISCONNECT SWITCH,
REFER TO ELECTRICAL
DATA TABLES TO SIZE THE
DISCONNECT SWITCH,
WIRING & OVERCURRENT
WIRING & OVERCURRENT
FIG. 1 - TYPICAL FIELD WIRING DIAGRAM
4
Unitary Products Group
035-18265-001-A-0202
Scroll compressors operate in one direction only. If a three
phase scroll compressor is experiencing:
GAS PIPING
Proper sizing of gas piping depends on the cubic feet per hour
of gas flow required, specific gravity of the gas and the length of
run. “National Fuel Gas Code” Z223.1 or CAN/CGA B149.1 or
.2 should be followed in all cases unless superseded by local
codesorgascompanyrequirements. RefertoTables4and5.
• Low amperage draw
• Similar discharge and suction pressures
• Increased noise level
then the compressor is operating in reverse. To correct this
condition, switch any two (2) line voltage leads at the contactor.
Please note, single phase scroll compressor will start and run
in one direction only. The reverse operation is not a concern.
The heating value of the gas may differ with locality. The value
should be checked with the local gas utility.
COMBUSTION DISCHARGE
NOTE: There may be a local gas utility requirement specifying
a minimum diameter for gas piping. All units require a
1/2 inch pipe connection at the gas valve.
TABLE 2 - NATURAL GAS APPLICATION DATA
Temp. Rise °F
Input
Output
Available
On
Models
Gas
Number
of
At Full Input2
Capacity Capacity
Rate1
(Mbh)3
45
(Mbh)
Ft.3/Hr. Burners
Min.
Max.
GAS CONNECTION
, 2,
, 3 &
TON
TON
36
42
2
25
55
The gas supply line can be routed through the hole located on
the left side of the unit. Refer to Figure 5 to locate these access
openings. Typical supply piping arrangements are shown in
Figure 2.
2 &
65
65
84
3
3
4
3
4
5
30
25
30
25
30
35
60
55
60
55
60
65
70
56
3 &
3 &
TON
TON
90
80
72
64
4 & 5 TON
4 & 5 TON
4 & 5 TON
74
108
135
86
108
100
126
AUTOMATIC
GAS VALVE
1 Based on 1075 BTU/Ft.3.
x
UNION
2 The air flow must be adjusted to obtain a temperature rise within the range shown.
Continuous return air temperatures should not be below 55°F.
x
GAS COCK
3 Heating capacity valid for elevations up to 2000 feet above sea level. For elevations
above 2000 feet, rated capacity should be reduced by 4% for each 1000 feet above sea
level.
TABLE 3 - PROPANE (LP) GAS APPLICATION DATA
Temp. Rise °F
Input
Output
Available
On
Models
Gas
Number
of
At Full Input2
Capacity Capacity
Rate1
(Mbh)3
45
(Mbh)
Ft.3/Hr. Burners
Min.
Max.
, 2,
, 3 &
TON
TON
36
18
2
25
55
- 14 NPT
2 &
28
28
36
32
43
54
3
3
4
3
4
5
30
25
30
25
30
35
60
55
60
55
60
65
DRIP LEG
70
56
3 &
3 &
TON
TON
90
80
108
135
72
64
86
FIG. 2 - EXTERNAL SUPPLY CONNECTION
4 & 5 TON
4 & 5 TON
4 & 5 TON
EXTERNAL SHUT-OFF
108
Gas piping recommendations:
1 Based on 2500 BTU/Ft.3.
2 The air flow must be adjusted to obtain a temperature rise within the range shown.
Continuous return air temperatures should not be below 55°F.
1. A drip leg and a ground joint union must be installed in the
gas piping.
3 Heating capacity valid for elevations up to 2000 feet above sea level. For elevations
above 2000 feet, rated capacity should be reduced by 4% for each 1000 feet above sea
level.
2. When required by local codes, a manual shut-off valve may
have to be installed outside of the unit.
4 Propane applications are accomplished by field installation of a Propane Conversion
Accessory, Model 1NP0805 for 1.5 thru 3.5 ton units and Model 1NP0806 for 4 and 5
ton units.
TABLE 4 - NATURAL GAS PIPE SIZING CHART
TABLE 5 - PROPANE (LP) GAS PIPE SIZING CHART
Length
in
Feet
Nominal Inches Iron Pipe Size
Length
in
Feet
Nominal Inches Iron Pipe Size
1/2 in.
3/4 in.
1 in.
1-1/4 in.
1/2 in.
3/4 in.
1 in.
1-1/4 in.
10
20
30
40
50
60
70
80
90
100
132
92
73
63
56
50
46
43
40
38
278
190
152
130
115
105
96
90
84
79
520
350
285
245
215
195
180
170
160
150
1,050
730
590
500
440
400
370
350
320
305
10
20
30
40
50
60
70
80
90
100
275
189
152
129
114
103
96
89
83
78
567
393
315
267
237
217
196
185
173
162
1,071
732
590
504
448
409
378
346
322
307
2,205
1,496
1,212
1,039
913
834
771
724
677
630
Maximum Capacity of Pipe in Cubic Feet of Gas Per Hour (Based Upon A Pressure Drop
of 0.3 Inch Water Column and 0.6 Specific Gravity Gas).
Maximum Capacity of Pipe in Thousands of BTU Per Hour (Based Upon A Pressure Drop
of 0.5 Inch Water Column).
Unitary Products Group
5
035-18265-001-A-0202
3. Use wrought iron or steel pipe for all gas lines. Pipe dope
should be applied sparingly to male threads only.
FLUE VENT HOOD
The flue vent hood with screen is not shipped attached. This hood
must be installed to assure proper unit operation. The hood must
be fastened to the outside of the side gas control/electrical com-
partment with the screws provided in the bag attached to the in-
side of the gas control/electrical compartment, see Figure 3.
CAUTION: If flexible stainless steel tubing is allowed by the
authority having jurisdiction, wrought iron or steel
pipe must be installed at the gas valve and extend a
minimumoftwo(2)inchesoutsideoftheunitcasing.
WARNING:Natural gas may contain some propane. Propane,
being an excellent solvent, will quickly dissolve
white lead or most standard commercial com-
pounds. Therefore, a special pipe dope must be
applied when wrought iron or steel pipe is used.
Shellac base compounds such as Gaskolac or Sta-
lastic, and compounds such as Rectorseal #5,
Clyde's or John Crane may be used.
The unit is controlled by a conventional four wire heating/cool-
ing thermostat common to this class of equipment.
WARNING: FLUE HOOD SURFACES
MAY BE HOT.
V
E
N
T
O
U
T
L
E
T
S
C
R
E
E
N
4. All piping should be cleaned of dirt and scale by hammering
on the outside of the pipe and blowing out the loose dirt and
scale. Before initial start-up, be sure that all of the gas lines
external to the unit have been purged of air.
F
L
U
E
V
E
N
T
O
U
T
L
E
T
A
I
R
H
O
O
D
5. The gas supply should be a separate line and installed in ac-
cordance with all safety codes as prescribed under “Limita-
tions”. After the gas connections have been completed, open
the main shut-off valve admitting normal gas pressure to the
mains. Check all joints for leaks with soap solution or other
material suitable for the purpose. NEVER USE A FLAME.
FIG. 3 - FLUE VENT OUTLET AIR HOOD
6. The furnace and its individual manual shut-off valve must
be disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in ex-
cess of 1/2 psig (3.48 kPa).
CAUTION
The flue exhaust hood must be properly installed and within the
recommended clearances. Further communications and action
must be given to the home or building owner(s) to eleiminate
any unauthorized humon contact around this area during the
heating cycle. Flue hood surface and immediate area is de-
signedtooperateathightemperaturesduringtheheatingcycle.
The furnace must be isoulated from the gas supply piping
system by closing its individual manual shut-off valve dur-
ing any pressure testing of the gas supply piping system at
test pressures equal to or less than 1/2 psig (3.48 kPa).
TABLE 6 - PHYSICAL DATA
DNA
036
MODELS
018
024
030
042
11 x 10
048
12 x 11
1.0
060
12 x 11
1.0
CENTRIFUGAL BLOWER (Dia. x Wd. in.)
FAN MOTOR HP (Three Speed)
ROWS DEEP
FINS PER INCH
FACE AREA (Sq. Ft.)
PROPELLER DIA. (in.)
FAN MOTOR HP
NOM. CFM TOTAL
ROWS DEEP
FINS PER INCH
10 X 8
10 X 8
10 X 8
11 x 10
EVAPORATOR
BLOWER
2
14
2.25
22
2
2
2
3
3
13
4.5
22
3
13
4.5
22
EVAPORATOR
COIL
13
3.5
22
13
3.5
22
15
3.5
22
13
3.5
22
CONDENSER
FAN
1,800
1
13
8.3
3 / 2
2,200
1
13
8.3
3 / 6
2,400
1
16
11.7
4 / 12
2,400
1
20
11.7
4 / 3
2,400
1
20
11.7
4 / 12
3,000
1
20
14.8
6 / 0
3,000
1
20
14.8
5 / 4
CONDENSER
COIL
FACE AREA (Sq. Ft.)
REFRIGERANT 22 (lbs./oz.)
FACE AREA (Sq. Ft.) / SIZE (NOMINAL)
CHARGE
FILTER*
2.6/20x20 2.6/20x20 2.6/20x20 2.6/20x20 2.6/20x20 3.3/20x12 3.3/20x12
NATURAL GAS BURNER ORIFICE NO.
(Qty./Drill size)
PROPANE BURNER ORIFICE NO.
(Qty./Drill size)
43
43
43
43
43
40
40
FURNACE
SECTION
55
55
NPTI
R
55
NPTI
R
55
NPTI
R
55
NPTI
R
53
53
GAS CONNECTION SIZE
NPTI
R
NPTI
S
NPTI
S
COMPRESSOR HERMETICALLY SEALED
TYPE (R = RECIPROCATING, S = Scroll)
* = Three phase 018 thru 042 size units are supplied with one (1) filter and on three phase 048 and 060 size units two (2) filters are supplied. Single phase units are shipped without filters.
See “FILTERS” on page 4.
6
Unitary Products Group
035-18265-001-A-0202
TABLE 7 - UNIT WEIGHTS
UNIT
UNIT
CORNER OPERATING WEIGHTS
(lbs., location, see Figure 4)
MODEL
DNA
SHIPPING
WEIGHT
(lbs.)
OPERATING
WEIGHT
(lbs.)
“A”
“B”
“C”
“D”
018
024
030
036
042
048
060
365
365
395
400
405
475
480
360
360
390
395
410
470
475
91
91
88
88
89
89
92
92
98
95
96
99
100
104
119
120
96
98
101
105
120
122
100
115
116
101
116
117
CENTER OF GRAVITY
CORNER “C”
CORNER “D”
CORNER “A”
FRONT
OF
UNIT
24
25
CORNER “B”
FIG. 4 - CENTER OF GRAVITY
TABLE 8 - ELECTRICAL DATA
VOLTAGE
SUPPLY
AIR
MAX.
MINIMUM FUSE
MAX.
HACR
COND.
LIMITATIONS COMPRESSOR
UNIT TRANSFORMER
MODEL POWER SUP-
FAN
MOTOR,
FLA
1
BLOWER CIRCUIT SIZE, BREAKER POWER
MOTOR, AMPACITY AMPS
FLA
SIZE (VA)
DNA
PLY
3
SIZE, FACTOR
AMPS
2
MIN. MAX.
RLA
LRA
018
024
030
036
042
048
060
036
042
048
060
036
042
048
060
036
042
048
060
208/230-1-60 187
208/230-1-60 187
208/230-1-60 187
208/230-1-60 187
208/230-1-60 187
208/230-1-60 187
208/230-1-60 187
208/230-3-60 187
208/230-3-60 187
208/230-3-60 187
208/230-3-60 187
253
253
253
253
253
253
253
253
253
253
253
504
504
504
504
630
630
630
630
9.0
11.5
14.7
17.3
20.5
24.4
28.9
10.9
14.1
14.1
15.5
5.8
7.1
7.1
8.8
4.5
5.8
5.7
7.1
48.0
60.0
73.0
94.0
120.0
140.0
175.0
78.0
110.0
105
1.1
1.1
1.1
1.1
1.1
1.3
1.3
1.1
1.1
1.3
1.3
0.6
0.6
0.7
0.7
0.4
0.4
0.6
0.6
2.2
2.2
2.2
3.5
3.5
7.0
7.0
3.5
3.5
7.0
7.0
1.8
1.8
3.5
3.5
1.5
1.5
2.8
2.8
14.5
17.7
21.7
26.2
30.2
38.8
44.4
18.2
22.2
25.9
29.5
9.6
11.2
13.1
15.4
7.5
9.1
10.5
12.3
20
25
30
35
40
50
60
25
30
35
40
15
15
20
20
15
15
15
15
20
25
30
35
40
50
60
25
30
35
40
15
15
20
20
15
15
15
15
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
40
40
40
40
40
40
40
75
75
75
75
75
75
75
75
75
75
75
75
125
460-3-60
460-3-60
460-3-60
460-3-60
575-3-60
575-3-60
575-3-60
575-3-60
414
414
414
414
518
518
518
518
40.0
54.0
55.0
66.5
32.0
44.0
45.0
50.0
Note; Electrical data based on 104°F outdoor air ambient temperature.
1 = Rated in accordance with ARI Standard 110, utilization range “A”.
2 = Dual element, time delay type.
3 = If economizer or motorized damper are to be used, 75 VA is required. Refer to price pages for future details.
Unitary Products Group
7
035-18265-001-A-0202
DIMENSION
“A” “B”
UNIT
SIZE
018 THRU 042
048 AND 060
VENT AIR OUTLET HOOD
BLOWER
SERVICE ACCESS
COMPARTMENT PANEL
CONDENSER COIL
GAS SUPPLY “ DIA. HOLE
( “ NPTI CONNECTION)
A
UNIT CONDENSATE
CONNECTION “ NPTI
(TRAP RECOMMENDED)
(OVERALL)
B
HIGH VOLTAGE CONN.
REFRIGERANT
CONNECTIONS
“
DIA. KNOCKOUT
HIGH VOLTAGE CONN.
COMBUSTION AIR
INLET LOUVERS
11
“
DIA. KNOCKOUT
GAS SUPPLY “ DIA. KNOCKOUT
( “ NPTI CONNECTION)
FRONT
(OVERALL)
(OVERALL)
LOW VOLTAGE CONN.
“ DIA. KNOCKOUT x “ HOLE
GAS/ELECTRIC CONTROL
SERVICE ACCESS
COMPARTMENT PANEL
HIGH VOLTAGE
CONN. “ DIA.
KNOCKOUT
FRONT
All dimensions are in inches. They are
subject to change without notice. Certified
dimensions will be provided upon request.
GAS SUPPLY “ DIA. KNOCKOUT
( “ NPTI CONNECTION)
LOW VOLTAGE CONN.
“ DIA. KNOCKOUT
SIDE SUPPLY
AIR OPENING
15
REAR
6
CONDENSER
COIL
SIDE RETURN
AIR OPENING
BOTTOM SUPPLY
AIR OPENING
CONDENSATE
DRAIN “ NPTI
CLEARANCES
(Minimum)
Front
Back
36"
0"
Left Side (Filter Access) 24"
15
15
Right Side
Below Unit 1
12"
4
0"
36" (For Condenser
Above Unit 2
Air Discharge)
1 Units may be installed on combustible floors made from wood or class
A, B or C roof covering material.
BOTTOM RETURN
AIR OPENING
2 Units must be installed outdoors. Overhanging structures or shrubs
should not obstruct condenser air discharge outlet.
NOTE:
A 1" clearance must be provided between any combustible material
and the supply air ductwork.
The products of combustion must not be allowed to accumulate
within a confined space and recirculate.
FIG. 5 - DIMENSIONS AND CLEARANCES
8
Unitary Products Group
035-18265-001-A-0202
SEQUENCE OF OPERATION
switches must be manually reset). The circulating fan remains
energized for the selected heat delay off timing.
HEATING
Normal operation of the system resumes.
When the thermostat calls for “HEAT”, the thermostat terminal
“W” is energized, energizing the combustion air blower.
COOLING
After airflow is established, the air proving switch closes, the
hot surface ignitor is energized and the pilot valve opens ignit-
ing the pilot flame. The system will try to light the pilot for 90
seconds. After 90 seconds, the pilot valve will close and the
system will retry in 5 minutes.
When the thermostat calls for “COOL”, the thermostat termi-
nals “G” and “Y” are energized signaling the compressor and
outdoor fan to run.
After a cool fan on delay timing of 2 seconds, the circulating fan
is energized at cooling speed.
The flame rod senses a flame and de-energizes the ignitor
opening the main gas valve and the main burners light.
When the thermostat is satisfied, terminals “G” and “Y” are de-
energized, de-energizing the compressor and outdoor fan.
30 seconds after the main burners light the circulating fan is en-
ergized at the heating speed.
After a cool fan off delay timing of 30 seconds the circulating
fan is de-energized.
When the thermostat is satisfied, terminal “W” is de-energized,
de-energizing the ignition system closing the gas valve.
CIRCULATING FAN
After a 5 second postpurge timing period, the combustion air
blower is de-energized and the heat fan off timing begins.
When the thermostat calls for “FAN”, the thermostat terminal
“G” is energized signaling the circulating fan to run at the heat
speed 2 seconds after the “G” terminal is energized.
When this field selected heat fan off timing is completed the cir-
culating fan is de-energized.
If a call for “HEAT” occurs, the circulating fan continues to run at
the heat speed.
If the primary, rollout or auxiliary limit switches open, the ther-
mostat and ignition system is de-energized and the gas valve
closes. The combustion blower and the circulating fan, at heat
speed, are energized.
If a call for “COOL” occurs, the circulating fan switches to cool
speed after a 4 second delay.
When the thermostat ends the call for “FAN”, the thermostat
terminal“G”isde-energized, de-energizingthecirculatingfan.
The combustion blower remains energized for the 5 second
postpurge timing period if the primary, rollout or auxiliary limit
switches remake the contact (the rollout and auxiliary limit
START-UP
8. Turn the gas valve switch to the “ON” position.
PRE-START CHECK LIST
9. Replace the control access panel.
Complete the following checks before starting the unit.
10. Turn on all electric power to the unit.
11. Set the thermostat to the desired setting.
1. Check the type of gas being supplied. Be sure that it is the
same as listed on the unit nameplate.
12. If the unit will not operate, follow the instructions “To Turn
Off Gas To Appliance” and call your service technician or
gas supplier.
2. Make sure that the vent outlet air hoods has been properly
installed.
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO UNIT
1. Set the thermostat to the “OFF” position.
1. STOP! Read the information on the unit safety label.
2. Turn off all electric power to the appliance if service is to be
performed.
2. Set the thermostat to the “OFF” position.
3. Turn off all electrical power to the unit.
3. Remove the control access panel.
4. DO NOT try to light the burners by hand. This appliance is
equipped with an ignition device which automatically lights
the burners.
4. Turn the gas valve switch to the “OFF” position. DO NOT
FORCE.
5. Replace the control access panel.
5. Remove the access panel.
POST-START CHECK LIST (GAS)
6. Turn the gas valve switch to the “OFF” position.
After the entire control circuit has been energized and the heat-
ing section is operating, make the following checks:
7. Wait five (5) minutes to clear out any gas. If you then smell
gas, STOP! Follow “B” in the information on the unit safety
label. If you don't smell gas, go to the next step.
1. Check for gas leaks in the unit piping as well as the supply
piping.
Unitary Products Group
9
035-18265-001-A-0202
2. Check for correct manifold gas pressures. See “Checking
Gas Input”.
2. Remove the burner assembly from the manifold assembly
by moving the burner assembly forward, turn at an angle
and pull back.
3. Check the supply gas pressure. It must be within the limits
shown on rating nameplate. Supply pressure should be
checked with all gas appliances in the building at full fire. At
no time should the standby gas line pressure exceed 10.5",
nor the operating pressure drop below 4.5" for natural gas
units. If gas pressure is outside these limits, contact the lo-
cal gas utility for corrective action.
3. Burners are now accessible for service.
HOT SURFACE PILOT INSTRUCTIONS
To check, adjust or remove the hot surface pilot assembly,
CLOSE THE MAIN MANUAL SHUT-OFF VALVE AND SHUT
OFF ALL POWER TO THE UNIT.
MANIFOLD GAS PRESSURE ADJUSTMENT
The pilot flame should envelope inch of the end of the flame
sensor and not contain any yellow color, see Figure 7.
Small adjustments to the gas flow may be made by turning the
pressure regulator adjusting screw on the automatic gas valve.
Refer to Figure 6.
I
G
N
I
T
O
R
E
L
E
C
T
R
I
C
A
L
C
O
N
N
E
C
T
I
O
N
M
S
(
P
A
N
U
A
L
G
I
A
S
W
O
I
T
C
W
H
S
H
O
N
N
"
O
F
F
S
I
T
I
O
N
)
M
P
T
A
N
I
F
O
L
D
3
/
8
R
E
S
S
U
R
E
A
P
C
E
C
O
N
T
R
O
L
L
E
C
T
R
I
C
A
L
G
T
R
O
U
N
D
O
N
N
E
C
T
I
O
N
E
R
M
I
N
A
L
1
(
/
2
-
1
4
N
P
T
O
U
T
L
E
T
)
FIG. 7 - PROPER FLAME ADJUSTMENT
To adjust the pilot flame:
P
C
I
L
O
T
G
A
S
1. Remove the pilot adjustment cover screw.
O
N
N
E
C
T
I
O
N
P
A
I
D
L
O
T
2. Adjust the pilot adjustment screw to achieve the proper pi-
lot flame.
J
U
S
T
M
E
N
T
L
I
N
E
P
R
E
S
S
U
R
E
T
A
P
3. Replace the pilot adjustment cover screw after the pilot
flame is set.
To remove the hot surface pilot assembly:
1. Disconnect the wiring from the gas valve to the hot surface
M
A
(
A
N
I
F
O
L
D
P
R
E
S
S
U
R
E
pilot assembly.
D
J
U
S
T
M
E
N
T
R
E
M
O
V
E
C
A
P
)
2. Remove the two (2) #8 screws holding the hot surface pilot
assembly in place.
1
(
/
2
-
1
4
N
P
T
3. Remove the hot surface pilot assembly.
I
N
L
E
T
)
V
E
N
T
P
R
E
S
S
U
R
E
L
I
M
I
T
E
R
Toremovethehotsurfaceignitorandflamesensorassembly:
FIG. 6 - GAS VALVE
1. Remove the clip attaching the ignitor and sensor assembly
as shown in Figure 8.
Adjust as follows:
1. Remove the cap from the valve body. See Figure 6 for loca-
tion.
2. To decrease the gas pressure, turn the adjusting screw
counterclockwise.
3. To increase the gas pressure, turn the adjusting screw
clockwise.
NOTE: The correct manifold pressure for natural gas furnaces
is 3.5 IWG ±0.2. The correct manifold pressure for pro-
pane (LP) is 10.0 IWG ±0.2.
BURNER INSTRUCTIONS
FIG. 8 - IGNITOR AND FLAME SENSOR ASSEMBLY
To check or change the burners, CLOSE THE MAIN MANUAL
SHUT-OFFVALVEANDSHUTOFFALLPOWERTOTHEUNIT.
Lift the pilot and sensor from the assembly. Care must be
taken not to damage the pilot or sensor when removing this
assembly.
2.
1. Remove the two (2) #8 screws holding each burner in
place.
10
Unitary Products Group
035-18265-001-A-0202
3. After maintenance of the pilot assembly, always measure
the resistance across the ignitor. If the resistance is greater
than 10 ohms, discard the ignitor and replace it with a new
ignitor.
TABLE 9 - GAS RATE- CUBIC FEET PER HOUR
Seconds
for One
Rev.
Size of Test Dial
1/2 cu. ft.
1 cu. ft.
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
180
150
129
113
100
90
82
75
69
64
60
56
53
50
47
45
43
41
39
37
36
35
34
32
31
30
360
300
257
225
200
180
164
150
138
129
120
113
106
100
95
90
86
82
78
75
72
69
67
ADJUSTMENT OF TEMPERATURE RISE
BTUH Output
1.08 x CFM
BTUH Output
(OR) CFM =
°F Temp. Rise =
1.08 x °F Temp. Rise
The temperature rise (or temperature difference between the
return air and the heated air from the furnace) must lie within
the range shown on the rating plate and the data in Tables 2
and 3.
After the temperature rise has been determined, the CFM can
be calculated as follows:
After about 20 minutes of operation, determine the furnace
temperature rise. Take readings of both the return air and the
heated air in the ducts about six feet from the furnace where
they will not be affected by radiant heat. Increase the blower
CFM to decrease the temperature rise; decrease the blower
CFM to increase the rise.
DIRECT DRIVE BLOWER
All units have direct drive multi-speed blower motors. Refer to
the unit wiring diagram and connect the blower motor for the
desired CFM.
64
62
60
CHECKING GAS INPUT
Example: By actual measurement, it takes 38 seconds for the hand on the 1-cubic foot dial to
make a revolution with just a 100,000 BTUH furnace running. Using this information, locate 38
seconds in the first column of Table 9. Read across to the column headed “1 Cubic Foot,”
where you will see that 95 cubic feet of gas per hour are consumed by the furnace at that rate.
Multiply 95 x 1050 (the BTU rating of the gas obtained from the local gas company). The result
is 99,750 BTUH, which is close to the100,000 BTUH rating of the furnace.
NATURAL GAS
1. Turnoffallothergasappliancesconnectedtothegasmeter.
2. With the furnace turned on, measure the time needed for one
revolution of the hand on the smallest dial on the meter. Atypi-
cal gas meter usually has a 1/2 or a 1 cubic foot test dial.
3. Using the number of seconds for each revolution and the
size of the test dial increment, find the cubic feet of gas con-
sumed per hour from Table 9.
If the actual input is not within 5% of the furnace rating with al-
lowance being made for the permissible range of the regulator
setting, replacetheorificespudswithspudsofthepropersize.
NOTE: Tofind the BTU input, multiply the number of cubic feet of
gas consumed per hour by the BTU content of the gas in
your particular locality. (Contact your gas company for
this information since it varies widely from city to city.)
SECURE OWNER'S APPROVAL
When the system is functioning properly, secure the owner's ap-
proval. Show him the location of all disconnect switches and the
thermostat. Teach him how to start and stop the unit and how to
adjust temperature settings within the limitations of the system.
Advise him that the flue exhaust hood surface and the immediate
area will experience high temperatures during the heating cycle.
All unauthorized personnel and debris must be kept away from
this area.
Unitary Products Group
11
035-18265-001-A-0202
MAINTENANCE
TO CLEAN BURNERS - Remove them from the furnace as ex-
plained in “Burner Instructions”. Clean burners with hot water
applied along top of the burner.
NORMAL MAINTENANCE
WARNING:Prior to any of the following maintenance proce-
dures, shut off all power to the unit, to avoid per-
sonal injury.
COMBUSTION AIR DISCHARGE - Visually inspect discharge
outlet periodically to insure soot and dirt buildup is not exces-
sive. If necessary, clean to maintain adequate combustion air
discharge.
Periodic maintenance consists of changing or cleaning filters.
Under some conditions, the main burners should be cleaned.
FILTERS - Inspect once a month. Replace Disposable or clean
Permanent Type as necessary. DO NOT replace Permanent
Type with Disposable.
The manufacture recommends that the furnace system be in-
spected once a year by a qualified service person.
CLEANING FLUE PASSAGES AND HEATING ELEMENTS
MOTORS - Indoor and outdoor fan motors, along with the com-
bustion blower are permanently lubricated and require no
maintenance.
With proper combustion adjustment the heating element of a
gas fired furnace will seldom need cleaning. If the element
should become sooted, it can be cleaned as follows:
OUTDOOR COIL- Dirt should not be allowed to accumulate on
the outdoor coil surface or other parts in the air circuit. Cleaning
should be as often as necessary to keep the coil clean. Use a
brush, vacuum cleaner attachment, or other suitable means. If
water is used to clean the coil, be sure that the power to the unit
is shut off prior to cleaning.
1. Remove the burner assembly as outlined in “BURNER IN-
STRUCTIONS”.
2. Remove the screws securing the restrictor plate to the tube
sheet.
3. Using a wire brush on a flexible wand, brush out the inside
of each heat exchanger from the burner inlet and flue outlet
ends.
CAUTION: Exercise care when cleaning the coil so that the
coil fins are not damaged.
4. Brushouttheinsideoftherestrictorplatetothetubesheet.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.
5. If soot build-up is particularly bad, remove the vent motor
and clean the wheel and housing.
6. After brushing is complete, blow all brushed areas with air
or nitrogen. Vacuum as needed.
BURNER - At the beginning of each heating season, make a
visual check of the main burner flame. If it is not possible to ad-
just for the proper flame, the burners may need cleaning.
7. Replace parts in the order they were removed in steps 1
thru 3.
12
Unitary Products Group
035-18265-001-A-0202
Checking Supply Air CFM
a dry coil, the compressors should be deactivated while the test
is being run.
To check the supply air CFM after the initial balancing has been
completed:
4.Knowing the pressure drop across a dry coil, the actual CFM
through the unit can be determined from the curve in Coil Delta
P vs. Supply Air CFM figure.
1.Remove the two ¼ inch dot plugs in the duct panel.
2.Insert at least 8 inches of ¼ inch tubing into each of these
holes for sufficient penetration into the airflow on both sides of
the indoor coil.
WARNING! Failure to properly adjust the total system air quan-
tity can result in extensive system damage.
After readings have been obtained, remove the tubes and rein-
stall the two ¼ inch plugs removed in Step 1.
3.Using an inclined manometer, determine the pressure drop
across the dry evaporator coil. Since the moisture on an evapo-
rator coil may vary greatly, measuring the pressure drop across
a wet coil under field conditions would be inaccurate. To ensure
NOTE: De-energize the compressors before taking any test
measurements to ensure a dry indoor coil.
Unitary Products Group
13
035-18265-001-A-0202
TABLE 10 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA018
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
57
59
21.9
18.8
15.7
12.7
9.6
6.8
-
61
24.4
21.5
18.6
15.7
12.8
9.9
7.1
-
63
26.8
24.1
21.4
18.7
16.0
13.0
10.0
7.1
-
65
29.3
26.8
24.3
21.8
19.3
16.1
13.0
9.6
67
31.7
29.4
27.1
24.8
22.5
19.3
16.0
12.0
8.0
69
71
73
75
65
70
17.1
19.5
32.7
30.6
28.6
26.5
24.4
21.6
18.8
15.4
12.0
8.6
33.7
31.8
30.0
28.2
26.4
24.0
21.7
18.8
16.0
13.1
10.3
34.6
33.1
31.5
29.9
28.3
26.4
24.5
22.3
20.0
17.7
15.4
35.6
34.3
32.9
31.6
30.2
28.8
27.4
25.7
24.0
22.2
20.5
13.6
16.2
75
10.1
12.9
80
6.6
9.6
85
-
-
-
-
-
-
-
6.3
90
-
-
-
-
-
-
95
100
105
110
115
-
-
-
6.1
-
-
-
-
-
-
-
-
-
-
5.1
TABLE 11 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA024
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
57
59
61
21.5
18.5
15.5
12.5
9.6
7.8
6.0
-
63
24.1
21.5
19.0
16.4
13.9
11.9
10.0
8.4
65
67
69
71
73
75
65
70
13.9
16.5
19.0
26.6
24.5
22.4
20.3
18.3
16.1
14.0
12.1
10.3
8.5
29.2
27.5
25.9
24.2
22.6
20.3
18.0
15.9
13.8
11.7
9.6
29.7
28.2
26.6
25.0
23.4
21.5
19.5
17.7
15.8
14.0
12.2
30.3
28.8
27.3
25.8
24.2
22.7
21.1
19.5
17.9
16.3
14.8
30.9
29.4
28.0
26.5
25.1
23.8
22.6
21.3
20.0
18.7
17.3
31.5
30.1
28.7
27.3
25.9
25.0
24.2
23.1
22.0
21.0
19.9
9.5
12.5
15.5
75
5.2
8.6
12.1
80
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8.7
85
5.2
90
-
-
-
-
-
-
95
100
105
110
115
-
6.9
-
5.3
-
-
6.7
TABLE 12 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA030
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
57
59
20.1
17.7
15.2
12.7
10.2
7.3
-
61
23.3
21.1
18.8
16.6
14.3
11.5
8.6
6.9
5.1
-
63
65
67
69
71
73
75
65
70
13.7
16.9
26.6
24.5
22.5
20.5
18.4
15.7
13.0
10.7
8.4
29.8
28.0
26.2
24.4
22.6
19.9
17.3
14.5
11.8
9.0
33.0
31.4
29.8
28.2
26.7
24.1
21.6
18.3
15.1
11.8
8.5
33.5
32.1
30.7
29.4
28.0
25.9
23.8
21.2
18.5
15.9
13.2
34.0
32.8
31.6
30.5
29.3
27.7
26.1
24.0
22.0
19.9
17.9
34.5
33.5
32.6
31.6
30.6
29.5
28.3
26.9
25.4
24.0
22.5
35.0
34.2
33.5
32.7
32.0
31.3
30.6
29.7
28.9
28.0
27.2
10.8
14.2
75
7.8
11.5
80
-
-
-
-
-
-
-
-
8.8
85
6.1
90
-
-
-
-
-
-
95
100
105
110
115
-
-
-
6.2
-
-
-
6.2
TABLE 13 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA036
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
27.1
23.3
19.5
15.7
11.9
8.6
5.3
-
57
28.4
24.8
21.1
17.5
13.8
10.6
7.4
5.6
-
59
29.7
26.2
22.7
19.2
15.7
12.6
9.5
7.6
5.7
-
61
31.1
27.7
24.4
21.0
17.6
14.6
11.5
9.6
63
65
67
69
71
73
75
65
70
32.4
29.2
26.0
22.8
19.6
16.6
13.6
11.6
9.6
33.7
30.6
27.6
24.5
21.5
18.6
15.7
13.6
11.5
9.4
35.0
32.1
29.2
26.3
23.4
20.6
17.8
15.6
13.5
11.3
9.2
35.9
33.5
31.2
28.8
26.5
24.1
21.7
20.1
18.4
16.7
15.0
36.8
34.9
33.1
31.3
29.5
27.6
25.7
24.5
23.3
22.1
20.9
37.6
36.4
35.1
33.8
32.6
31.1
29.7
28.9
28.2
27.4
26.7
38.5
37.8
37.1
36.3
35.6
34.6
33.7
33.4
33.1
32.8
32.5
75
80
85
90
95
100
105
110
115
-
7.6
-
-
5.6
7.5
-
-
-
-
5.5
7.4
14
Unitary Products Group
035-18265-001-A-0202
TABLE 14 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA042
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
57
59
61
23.0
19.3
15.5
11.7
7.9
6.7
5.5
-
63
24.7
21.2
17.8
14.3
10.8
9.3
7.8
6.3
-
65
26.3
23.2
20.0
16.9
13.7
11.9
10.2
8.0
67
28.0
25.2
22.3
19.5
16.6
14.6
12.5
9.8
69
71
73
75
65
70
18.0
19.7
21.4
29.1
26.6
24.2
21.7
19.3
17.4
15.5
12.9
10.3
7.8
30.2
28.1
26.1
24.0
21.9
20.2
18.5
16.1
13.7
11.2
8.8
31.3
29.6
28.0
26.3
24.6
23.1
21.5
19.2
16.9
14.7
12.4
32.4
31.1
29.9
28.6
27.3
25.9
24.5
22.4
20.3
18.1
16.0
13.4
15.3
17.3
75
8.7
10.9
13.2
80
-
-
-
-
-
-
-
-
6.6
9.1
85
-
-
-
-
-
-
-
5.1
90
-
-
-
-
-
-
95
100
105
110
115
-
5.9
7.1
-
-
-
-
-
-
-
-
5.2
TABLE 15 - SUPERHEAT CHARGING TABLE FOR MODEL D1NA048
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
20.9
17.6
14.4
11.1
7.8
5.8
-
57
21.8
18.7
15.5
12.4
9.2
7.0
-
59
22.7
19.7
16.6
13.6
10.6
8.2
5.8
5.4
-
61
23.6
20.7
17.8
14.9
12.0
9.3
6.7
6.0
5.3
-
63
24.4
21.7
18.9
16.1
13.3
10.5
7.7
6.7
5.7
-
65
25.3
22.7
20.0
17.4
14.7
11.7
8.6
7.4
6.1
-
67
26.2
23.7
21.2
18.6
16.1
12.9
9.6
8.0
6.5
-
69
71
73
75
65
70
27.4
25.2
22.9
20.7
18.4
15.7
13.0
11.6
10.2
8.7
28.6
26.6
24.7
22.7
20.8
18.6
16.5
15.2
13.9
12.6
11.3
29.8
28.1
26.4
24.8
23.1
21.5
19.9
18.7
17.6
16.4
15.3
31.0
29.6
28.2
26.8
25.4
24.4
23.3
22.3
21.3
20.3
19.3
75
80
85
90
95
100
105
110
115
-
-
-
-
-
-
-
-
-
-
-
-
-
-
7.3
TABLE 16 - SUPERHEAT CHARGING TABLE FOR MODEL D2NA060
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 400 CFM/TON
INDOOR WB TEMPERATURE (F)
OUTDOOR
TEMPERATURE
(F)
55
57
9.2
8.4
7.6
6.8
6.0
-
59
11.4
10.7
9.9
9.2
8.4
6.5
-
61
13.6
13.0
12.3
11.6
10.9
8.7
6.5
5.9
5.3
-
63
15.9
15.2
14.6
14.0
13.3
10.8
8.3
65
18.1
17.5
16.9
16.3
15.8
12.9
10.1
8.6
67
20.3
19.8
19.3
18.7
18.2
15.1
11.9
10.0
8.0
69
71
73
75
65
70
7.0
21.8
21.2
20.7
20.2
19.6
17.1
14.5
12.9
11.3
9.6
23.2
22.7
22.2
21.6
21.1
19.1
17.1
15.8
14.5
13.2
11.8
24.7
24.1
23.6
23.1
22.5
21.1
19.7
18.7
17.7
16.7
15.7
26.1
25.6
25.0
24.5
23.9
23.1
22.3
21.6
20.9
20.2
19.6
6.1
75
5.3
80
-
-
-
-
-
-
-
-
85
90
95
-
100
105
110
115
-
-
7.3
-
-
6.2
7.1
-
-
5.2
5.6
6.1
-
-
-
-
-
-
8.0
Unitary Products Group
15
035-18265-001-A-0202
TROUBLESHOOTING
NOTE: Before troubleshooting, familiarize yourself with the startup and checkout procedure.
. Turn gas supply
off
. Set thermostat to
START
INSET
Check
. Line voltage power
. Low voltage
transformer
HSI
TERMINALS
SV9501
is powered
(24 VAC nominal)
NO
. Main limit
(Auto reset)
. Rollout limit
(Manual reset)
. Auxilary limit
(Manual reset)
. Thermostat
. Wiring
. Air proving switch on
combustion air
blower system
. Vent damper (if used)
is open and end switch
made
Unplug pilot burner cable,
measure voltage at
SV9501 HSI
terminals (24 VAC
nominal, see inset)
Replace
SV9501
NO
NO
YES
Igniter warms up
and glows red
Replace igniter/flame rod as-
sembly
Pilot valves opens
Replace SV9501
NO
NO
YES
Check
Measure voltage to SV9501.
Voltage must be at least 19.5
VAC.
transformer
line volt
supply
Turn gas on.
Pilot burner lights?
NO
YES
Replace igniter/flame rod as-
sembly
YES
Replace
SV9501
save old
igniter/
flame rod as-
sembly for
service
Replace igniter/flame rod as-
sembly and retain.
Restart troubleshooting se-
quence.
NO
NO
Main valve opens?
YES
Does main valve open?
YES
Discard old igniter/flame rod
assembly
System OK
16
Unitary Products Group
035-18265-001-A-0202
(See page 18)
SEE
DETAIL
"A"
FIG. 9 - TYPICAL WIRING DIAGRAM (208/230-1-60 POWER SUPPLY)
FIG. 10 - TYPICAL WIRING DIAGRAM (208/230-3-60 POWER SUPPLY)
Unitary Products Group
17
035-18265-001-A-0202
B
(See page 18)
FIG. 11 - TYPICAL WIRING DIAGRAM (460-3-60 POWER SUPPLY)
B
(See page 18)
FIG. 12 - TYPICAL WIRING DIAGRAM (575-3-60 POWER SUPPLY)
18
Unitary Products Group
035-18265-001-A-0202
TYPICAL WIRING DIAGRAM NOTES (See pages 16 and 17)
TYPICAL WIRING DIAGRAM LEGEND (See pages 16 and 17)
(ALTERNATE)
(ALTERNATE)
FIG. 13 - WIRING DIAGRAM DETAIL “B”
(460 & 575-3-60 POWER SUPPLY) See page 17
Unitary Products Group
19
035-18265-001-A-0202
NOTES
20
Unitary Products Group
Unitary Products Group
5005 York Drive, Noman, Oklahoma 73069
Subject to change without notice. Printed in U.S.A.
Copyright by York International Corporation 2000 All Rights Reserved.
035-18265-001-A-0202
Supersedes: 035-18265-000-A-0801
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