®
CHAMPION PLUS
INSTALLATION
MANUAL
SINGLE PACKAGED GAS/ELECTRIC
AIR COOLED AIR CONDITIONERS
1-1/2 THROUGH 5 NOMINAL TON
DNH: 018
024
042
048
060
CONTENTS
GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RENEWAL PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . 15
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . 15
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . 23
TYPICAL WIRING DIAGRAM NOTES. . . . . . . . . . . . . 31
030
036
See the following page for a complete Table of Contents.
NOTES, CAUTIONS AND WARNINGS
The 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.
CAUTION: READ ALL SAFETY GUIDES BEFORE YOU
BEGIN TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
66324-YIM-B-1004
66324-YIM-B-1004
GENERAL
APPROVALS
Design certified by CGA and AGA listed as follows:
YORK Model D1NH units are cooling/heating air conditioners
designed for outdoor installation. Only gas piping, electric
power and duct connections are required at the point of
installation.
1. For use as a forced air furnace with cooling unit.
2. For outdoor installation only.
3. For installation directly on combustible flooring or, in
U.S., on wood flooring or Class A; B; C roof covering
material.
The gas-fired heaters have hot surface to pilot ignition. The
tubular heat exchangers are aluminized steel.
This appliance is not to be used for temporary heating of
buildings or structures under construction.
4. For installation on combustible material.
5. For use with natural gas and/or propane (LP) gas. Not
suitable for use with conventional venting systems.
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 the
installer that personal injury and/or equipment damage may
result if installation procedure is not handled properly.
This product must be installed in strict compliance
with the enclosed installation instructions and any
applicable local, state, and national codes includ-
ing, but not limited to, building, electrical and
mechanical codes.
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. A
separate request for inspection by the carrier's agent should
be made in writing. Refer to Form 50.15-NM for additional
information.
Improper installation may create a condition where
the operation of the product could cause personal
injury or property damage.
RENEWAL PARTS
For key Replacement Parts, refer to Renewal Parts Form:
•
•
•
•
530.46-RP1.1Y
530.46-RP1.2Y
530.46-RP2.1Y
530.46-RP3.1Y
Unitary Products Group
3
66324-YIM-B-1004
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FIGURE 1 - PRODUCT NOMENCLATURE
INSTALLATION
LOCATION
Use the following guidelines to select a suitable location for
these units.
LIMITATIONS
These units must be installed in accordance with the follow-
ing national and local safety codes.
1. Unit is designed for outdoor installation only.
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.
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.
4. Local plumbing and waste water codes and other appli-
cable local codes.
Excessive exposure of this furnace to contami-
nated combustion air may result in equipment
damage or personal injury. Typical contaminants
include: permanent wave solution, chlorinated
wastes 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,
cements and glues, antistatic fabric softeners for
clothes dryers, masonry acid washing materials.
Refer to Table 1 for unit application data and to Table 2 for
gas heat application data.
If components are to be added to a unit to meet local codes,
they are to be installed at the dealer's and/or the customer's
expense.
Size of unit for proposed installation should be based on heat
loss/heat gain calculations made in accordance with industry
recognized procedures identified by the Air Conditioning
Contractors of America.
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.
TABLE 1: UNIT APPLICATION DATA
208/230V2
187 / 253
Voltage Variation
Min. / Max.1
460V
575V
414 / 504
518 / 630
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
angle iron frame providing adequate support under the
compressor/condenser section.
Wet Bulb Temperature (°F) of Air on
Evaporator Coil, Min. / Max.
57 / 72
Dry Bulb Temperature (°F) of Air on
Condenser Coil, Min.3 / Max.
45 / 120
1.
Rated in accordance with ARI Standard 110, utilization range
“A”.
5. Maintain level tolerance of unit to 1/8" maximum.
2.
3.
“T1” transformer primary tap must be moved from the 230 volt
connection to the 208 volt connection for low voltage applica-
tions of 208 volt and below
A low ambient accessory is available for operation down to 0 °F.
4
Unitary Products Group
66324-YIM-B-1004
RIGGING OR HANDLING
CLEARANCES
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 sufficient length should be used across the
All units require certain clearances for proper operation and
service. Refer to Figure 5 for the clearances required for
combustion, construction, servicing and proper unit opera-
tion.
top of the unit.
Do not permit overhanging structures or shrubs to
obstruct the condenser air discharge, combustion
air inlet or vent outlet.
Before lifting a unit, make sure that its weight is dis-
tributed equally on the cables so that it will lift
evenly.
DUCT WORK
Units may also be moved or lifted with a fork-lift. Slotted
openings in the skid are provided for this purpose. Forks
must pass completely through the base.
These units are adaptable to downflow use as well as rear
supply and return air duct openings. To convert to downflow,
use the following steps:
Refer to Table 2 for unit weights and to Figure 2 for approxi-
mate center of gravity.
1. Remove the duct covers found in the bottom return and
supply air duct openings. There are four (4) screws
securing each duct cover (save these screws to use
later).
TABLE 2: UNIT WEIGHTS AND CENTER OF
GRAVITY
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.
CORNER WEIGHTS
(LOCATION, LBS.)
SHIPPING
WEIGHT
(LBS.)
OPERATING
WEIGHT
(LBS.)
UNIT
SIZE
“A”
“B”
“C”
“D”
3. Seal duct covers with silicone caulk.
018
024
030
036
042
048
060
365
365
395
400
470
475
485
360
360
390
395
465
470
480
91
91
88
88
89
89
92
92
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.
98
95
96
99
100
131
133
136
96
98
101
103
104
107
129
130
133
101
102
105
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 min-
imize the transmission of noise.
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 ductwork must be insulated and
waterproofed.
NOTE: Be sure to note supply and return openings.
Refer to Figure 5 for information concerning rear and bottom
supply and return air duct openings.
FIGURE 2 - UNIT CENTER OF GRAVITY
Unitary Products Group
5
66324-YIM-B-1004
Refer to Figure 5 for location of these access panels and min-
imum clearances.
ROOF CURB
On applications when a roof curb is used, the unit must be
positioned on the curb so the front of the unit is tight against
the curb.
THERMOSTAT
The room thermostat should be located on an inside wall
approximately 56" above the floor where it will not be subject
to drafts, sun exposure or heat from electrical fixtures or
appliances. Follow manufacturer's instructions enclosed with
the thermostat for general installation procedure. Four color
coded insulated wires (minimum #18 AWG) should be used
to connect thermostat to unit. See Figure 2.
FILTERS
Single phase units are shipped without a filter or filter racks
and is the responsibility of the installer to secure a filter in the
return air ductwork or install a Filter/Frame Kit (1FF0110).
A filter rack and a high velocity filters are standard on three
phase units.
POWER AND CONTROL WIRING
Filters must always be used and must be kept clean. When
filters become dirt laden, insufficient air will be delivered by
the blower, decreasing your units efficiency and increasing
operating costs and wear-and-tear on the unit and controls.
Field wiring to the unit must conform to provisions of the cur-
rent N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordi-
nances. The unit must be electrically grounded in accordance
with local codes or, in their absence, with the N.E.C./C.E.C.
Voltage tolerances which must be maintained at the com-
pressor terminals during starting and running conditions are
indicated on the unit Rating Plate and Table 8.
Filters should be checked monthly especially since this unit is
used for both heating and cooling.
The wiring entering the cabinet must be provided with
mechanical strain relief.
CONDENSATE DRAIN
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
condensate drain line (NPTF) to spill into an open drain.
A fused disconnect switch should be field provided for the
unit. If any of the wire supplied with the unit must be replaced,
replacement wire must be of the type shown on the wiring
diagram.
SERVICE ACCESS
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.
Access to all serviceable components is provided by the fol-
lowing removable panels:
•
•
Blower compartment
Gas control/electrical service access
Refer to Figure 2 for typical field wiring and to the appropriate
unit wiring diagram for control circuit and power wiring infor-
mation.
6
Unitary Products Group
66324-YIM-B-1004
FIGURE 3 - FIELD WIRING DIAGRAM CONTROL WIRING
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FIGURE 4 - POWER WIRING FIELD DIAGRAM
Unitary Products Group
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66324-YIM-B-1004
COMPRESSORS
Units are shipped with compressor mounting factory-adjusted
for shipping.
Loosen compressor mounting bolts a half turn
before operating unit.
TABLE 3: NATURAL GAS APPLICATION DATA
TEMP. RISE °F AT FULL
INPUT3
OUTPUT
CAPACITY
(MBH)
GAS RATE2
FT.3/HR.
NUMBER OF
BURNERS
INPUT CAPACITY
AVAILABLE ON MODELS
(MBH)1
MIN.
25
MAX.
55
1-1/2, 2, 2-1/2 3 TON
2 & 2-1/2 TON
3 TON
45
70
36
56
56
64
72
87
87
108
42
65
2
3
3
3
4
4
4
5
30
60
70
65
25
55
3-1/2 TON, 4 & 5 TON
3 TON
80
74
25
55
90
84
30
60
3-1/2 TON
108
108
135
100
43
45
75
4 & 5 TON
4 & 5 TON
1.
30
60
126
35
65
Heating capacity valid for elevations up to 2000 feet above sea level. For elevations above 2,000 feet, rated capacity should be reduced by 4% for
each 1,000 feet above sea level.
3
2.
3.
Based on 1075 BTU/Ft. .
The air flow must be adjusted to obtain a temperature rise within the range shown. Continuous return air temperature should not be below 55°F.
8
Unitary Products Group
66324-YIM-B-1004
1
TABLE 4: PROPANE (LP) GAS APPLICATION DATA
TEMP. RISE ×F AT FULL
INPUT4
GAS RATE3
FT.3/HR.
NUMBER OF
BURNERS
INPUT CAPACITY
AVAILABLE ON
MODELS
OUTPUT CAPACITY
(MBH)
(MBH)2
MIN.
25
MAX.
55
1-1/2, 2, 2-1/2, 3 TON
2 & 2-1/2 TON
3 TON
45
70
36
56
56
64
72
87
87
108
18
28
28
32
36
43
43
54
2
3
3
3
4
4
4
5
30
60
70
25
55
3-1/2, 4 & 5 TON
3 TON
80
25
55
90
30
60
3-1/2 TON
108
108
135
45
75
4 & 5 TON
30
60
4 & 5 TON
35
65
1.
Propane applications are accomplished by field installation of a Propane Conversion Accessory, Model 1NP0805.
2.
Heating capacity valid for elevations up to 2,000 feet above sea level. For elevations above 2,000 feet, rated capacity should be reduced by 4% for
each 1,000 feet above sea level.
3
3.
4.
Based on 2500 BTU/Ft. .
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.
COMBUSTION DISCHARGE
GAS PIPING
GAS CONNECTION
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 3.
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 super-
seded by local codes or gas company requirements. Refer to
Tables 5 and 6.
Gas piping recommendations:
1. A drip leg and a ground joint union must be installed in
the gas piping.
The heating value of the gas may differ with locality. The
value should be checked with the local gas utility.
2. When required by local codes, a manual shut-off valve
may have to be installed outside of the unit.
NOTE: There may be a local gas utility requirement specify-
ing a minimum diameter for gas piping. All units require a 1/2
inch pipe connection at the gas valve.
3. Use wrought iron or steel pipe for all gas lines. Pipe dope
should be applied sparingly to male threads only.
Unitary Products Group
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66324-YIM-B-1004
.
TABLE 6: PROPANE (LP) GAS PIPE SIZING
A
G
U
T
O
M
A
T
V
I
C
A
S
V
A
L
E
1
CHART
1
/
2
x
1
/
2
K
U
N
I
O
N
NOMINAL INCHES IRON PIPE SIZE
LENGTH
IN FEET
1
/
2
x
1
/
2
G
A
S
C
O
C
1/2”
275
189
152
129
114
103
96
3/4”
567
393
315
267
237
217
196
185
173
162
1”
1,071
732
590
504
448
409
378
346
322
307
1-1/4”
2,205
1,496
1,212
1,039
913
10
20
30
40
50
60
70
80
90
1
/
2
-
1
4
N
P
T
D
R
I
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L
E
G
834
FIGURE 5 - EXTERNAL SUPPLY CONNECTION
EXTERNAL SHUT-OFF
771
89
724
1
83
677
TABLE 5: NATURAL GAS PIPE SIZING CHART
100
78
630
NOMINAL INCHES IRON PIPE SIZE
LENGTH
IN FEET
1.
Maximum capacity of pipe in thousands of BTU per hour (based
upon a pressure drop of 0.5 inch water column).
1/2”
132
92
3/4”
278
190
152
130
115
105
96
1”
1-1/4”
1,050
730
10
20
30
40
50
60
70
80
90
100
520
350
285
245
215
195
180
170
160
150
73
590
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 minimum of two (2) inches outside of the unit
casing.
63
500
56
440
50
400
46
370
i
43
90
350
40
84
320
Natural gas may contain some propane. Propane
being a 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 gaskoloc or sta-
lastic, and compounds such as rectorseal # 5,
Clyde’s or John Crane may be used.
38
79
305
1.
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).
10
Unitary Products Group
66324-YIM-B-1004
4. All piping should be cleaned of dirt and scale by ham-
mering 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.
V
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5. The gas supply should be a separate line and installed in
accordance with all safety codes as prescribed under
Limitations. After the gas connections have been com-
pleted, 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.
6. The furnace and its individual manual shut-off valve must
be disconnected from the gas supply piping system dur-
ing any pressure testing of that system at test pressures
in excess of 1/2 psig (3.48 kPa).
FIGURE 6 - FLUE VENT OUTLET AIR HOOD
The furnace must be isolated from the gas supply piping sys-
tem by closing its individual manual shut-off valve during any
pressure testing of the gas supply piping system at test pres-
sures equal to or less than 1/2 psig (3.48 kPa).
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 eliminate any unau-
thorized human contact around this area during
the heating cycle. Flue hood surface and immedi-
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 compartment with the screws provided in the bag
attached to the inside of the gas control/electrical compart-
ment, see Figure 4.
ate area are designed to operate at high tempera-
tures during the heating cycle.
Flue hood surfaces may be hot.
Unitary Products Group
11
66324-YIM-B-1004
TABLE 7: PHYSICAL DATA
DNH
036
MODEL
018
024
030
042
048
060
CENTRIFUGAL BLOWQER (Dia. x Wd. in.)
10 X 8
1/2
2
10 X 8
1/2
2
10 X 8
1/2
3
11 x 10
3/4
11 x 10
3/4
12 x 11
3/4
3
12 x 11
1
EVAPORATOR
BLOWER
FAN MOTOR HP (3 Speed)
ROWS DEEP
3
3
3
EVAPORATOR
COIL
FINS PER INCH
13
15
13
13
13
16
16
FACE AREA (Sq. Ft.)
PROPELLER DIA. (in.)
FAN MOTOR HP
3.5
22
3.5
22
3.5
22
3.5
4.5
4.5
22
4.5
22
22
22
CONDENSER
FAN
1/4
1,800
1
1/4
2,200
1
1/4
2,400
1
1/4
1/4
1/3
3,000
2
1/3
3,000
2
NOM. CFM TOTAL
ROWS DEEP
2,400
2
2,400
1
CONDENSER
COIL
FINS PER INCH
20
20
20
20
20
20
20
FACE AREA (Sq. Ft.)
REFRIGERANT 22 (lbs./oz.)
11.7
4 / 6
11.7
4 / 6
11.7
4 / 9
11.7
6 / 12
14.7
5 / 14
14.7
8 / 0
14.7
8 / 12
CHARGE
FILTER
3.3/20x12
(2 Reqd.)
3.3/20x12
(2 Reqd.)
3.3/20x12
(2 Reqd.)
FACE AREA (Sq. Ft.) Size (Nominal)
2.6/20x20 2.6/20x20 2.6/20x20
2.6/20x20
NATURAL GAS BURNER ORIFICE NO.
(Drill Size)
43
55
43
55
43
55
43
55
40
53
40
53
40
53
FURNACE
SECTION
PROPANE BURNER ORIFICE NO.
(Drill Size)
GAS CONNECTION SIZE
1/2 NPTI
Recip
1/2 NPTI
Recip
1/2NPTI
Scroll
1/2 NPTI
Scroll
1/2 NPTI
Scroll
1/2 NPTI
Scroll
1/2 NPTI
Scroll
COMPRESSOR HERMETIC TYPE, (Qty. = 1)
TABLE 8: ELECTRICAL DATA
VOLTAGE
SUPPLY
AIR
BLOWER
MOTOR AMPACITY
FLA
MAX.
HACR
BREAKER POWER
MAX.
FUSE
SIZE,
COND.
FAN
MOTOR,
FLA
COMPRESSOR
1
MINIMUM
CIRCUIT
UNIT
LIMITATIONS
MODEL
TRANSFORMER
SIZE (VA)
POWER SUPPLY
DNH
SIZE,
FACTOR
MIN.
MAX.
RLA
LRA
2
AMPS
AMPS
018
024
030
030
030
036
036
036
036
042
042
042
042
048
048
048
048
060
060
060
060
208/230-1-60
208/230-1-60
208/230-1-60
208/230-3-60
460-3-60
187
187
187
187
414
187
187
414
518
187
187
414
518
187
187
414
518
187
187
414
518
253
253
253
253
504
253
253
504
630
253
253
504
630
253
253
504
630
253
253
504
630
7.1
9.3
48
57
1.1
1.1
1.1
1.1
0.6
1.1
1.1
0.6
0.4
1.3
1.3
0.7
0.5
1.9
1.9
1.0
0.8
1.9
1.9
1.0
0.8
2.6
2.6
2.6
2.6
1.4
3.5
3.5
1.8
1.5
3.5
3.5
1.8
1.5
4.2
4.2
2.1
1.7
9.4
9.4
9.4
2.8
12.5
15.3
20.7
14.5
7.4
15
20
30
20
15
35
30
15
15
40
30
15
15
45
30
15
15
70
45
25
20
15
20
30
20
15
35
30
15
15
40
30
15
15
45
30
15
15
70
45
25
20
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
.96
40
40
40
75
75
40
75
75
75
40
75
75
75
40
75
75
75
40
75
75
75
13.6
8.6
67
55
4.3
27
208/230-1-60
208/230-3-60
460-3-60
17.2
11.4
5.7
88
26.1
18.9
9.5
77
39
575-3-60
4.7
31
7.8
208/230-1-60
208/230-3-60
460-3-60
20.0
13.9
6.4
104
88
29.8
22.2
10.5
8.8
44
575-3-60
5.4
34
208/230-1-60
208/230-3-60
460-3-60
23.4
13.0
6.4
126
93
35.4
22.4
11.1
8.9
46.5
37.2
175
123
62
575-3-60
5.1
208/230-1-60
208/230-3-60
460-3-60
32.1
19.3
10.0
7.9
51.4
35.4
18.2
13.5
575-3-60
50
1.
2.
Rated in accordance with ARI Standard 110, utilization range “A”.
Dual element, time delay type.
12
Unitary Products Group
66324-YIM-B-1004
All dimensions are in inches.
They are subject to change with-
out notice. Certified dimensions
will be provided upon request.
FIGURE 7 - UNIT DIMENSIONS - FRONT
TABLE 9: UNIT DIMENSIONS FRONT
1 2
TABLE 10: UNIT MINIMUM CLEARANCES
DIMENSION
UNIT SIZE
CLEARANCES
“A”
“B”
FRONT
BACK
36”
0”
018 - 036
042 - 060
33-1/2
41-1/2
18-1/4
23-1/8
LEFT SIDE (Filter-Access)
RIGHT SIDE
24”
12”
0”
3
BELOW UNIT
4
36” (For Condenser Air Discharge
ABOVE UNIT
1.
A 1” clearance must be provided between any combustible
material and the supply 7 air ductwork.
2.
3.
4.
The products of combustion must not be allowed to accumulate
within a confined space and recirculate.
Units may be installed on combustible floors made from wood
or class A, B, or C roof covering material.
Units must be installed outdoors. Overhanging structures or
shrubs should not obstruct condenser air discharge outlet.
Unitary Products Group
13
66324-YIM-B-1004
1
9
-
1
/
4
1
1
-
7
/
8
H
C
K
I
O
G
H
V
O
L
T
A
G
E
8
-
7
/
8
N
N
.
1
-
3
/
3
2
"
D
I
A
.
F
R
O
N
T
N
O
C
K
O
U
T
G
K
C
A
S
S
U
P
P
L
Y
1
-
5
/
8
"
D
I
A
.
N
O
C
K
O
U
T
T
(
1
/
2
"
N
P
T
I
O
N
N
E
C
I
O
N
)
L
1
O
/
W
V
O
L
T
A
G
E
C
O
N
N
.
8
"
D
I
A
.
K
N
O
C
K
O
U
T
4
-
5
/
8
C
D
O
R
N
D
E
N
S
A
T
E
A
I
N
3
/
4
"
'
N
P
T
I
2
6
-
3
/
4
6
FIGURE 8 - UNIT DIMENSIONS - FRONT & BOTTOM
1
4
-
1
/
2
S
A
I
I
D
R
E
S
U
P
P
L
Y
O
P
E
N
I
N
G
2
8
-
3
/
8
C
O
N
D
E
N
S
E
R
C
O
I
L
1
4
-
1
/
2
B
A
C
K
B
O
T
T
O
M
S
U
P
P
L
Y
A
I
R
O
P
E
N
I
N
G
3
-
3
/
8
S
I
D
E
R
E
T
U
R
N
A
I
R
O
P
E
N
I
N
G
1
4
-
1
/
2
3
-
1
/
2
4
1
-
3
/
4
1
5
1
5
1
-
3
/
4
1
5
B
O
T
T
O
M
R
E
T
U
R
N
A
I
R
O
P
E
N
I
N
G
3
-
1
/
2
2
9
-
9
/
1
6
1
-
3
/
4
FIGURE 9 - UNIT DIMENSIONS - BACK & BOTTOM
14
Unitary Products Group
66324-YIM-B-1004
CIRCULATING FAN
SEQUENCE OF OPERATION
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.
The unit is controlled by a conventional four wire heating/
cooling thermostat common to this class of equipment.
HEATING
If a call for HEAT occurs, the circulating fan continues to run
at the heat speed.
When the thermostat calls for HEAT, the thermostat terminal
W is energized, energizing the combustion air blower.
If a call for COOL occurs, the circulating fan switches to cool
speed after a 4 second delay.
After airflow is established, the air proving switch closes, the
hot surface ignitor is energized and the pilot valve opens
igniting the pilot flame.
When the thermostat ends the call for FAN, the thermostat
terminal G is de-energized, de-energizing the circulating fan.
The flame rod senses a flame and de-energizes the ignitor
opening the main gas valve and the main burners light.
START-UP
30 seconds after the main burners light the circulating fan is
energized at the heating speed.
PRE-START CHECK LIST
Complete the following checks before starting the unit.
When the thermostat is satisfied, terminal W is de-energized,
de-energizing the ignition system closing the gas valve.
1. Check the type of gas being supplied. Be sure that it is
the same as listed on the unit nameplate.
After a 5 second postpurge timing period, the combustion air
blower is de-energized and the heat fan off timing begins.
2. Make sure that the vent outlet air hoods has been prop-
erly installed.
When this field selected heat fan off timing is completed the
circulating fan is de-energized.
OPERATING INSTRUCTIONS
1. STOP! Read the information on the unit safety label.
2. Set the thermostat to the OFF position.
3. Turn off all electrical power to the unit.
If the primary, rollout and auxiliary limit switches open, the
thermostat and ignition system is de-energized and the gas
valve closes. The combustion blower and the circulating fan,
at heat speed, are energized.
4. DO NOT try to light the burners by hand. This appliance
is equipped with an ignition device which automatically
lights the burners.
The combustion blower remains energized for the 5 second
postpurge timing period if the primary, rollout and auxiliary
limit switches remake the contact (the rollout and auxiliary
limit switches must be manually reset). The circulating fan
remains energized for the selected heat delay off timing.
5. Remove the access panel.
6. Turn the gas valve switch to the OFF position.
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.
Normal operation of the system resumes.
COOLING
8. Turn the gas valve switch to the ON position.
9. Replace the control access panel.
When the thermostat calls for COOL, the thermostat termi-
nals G and Y are energized signaling the compressor and
outdoor fan to run.
10. Turn on all electric power to the unit.
11. Set the thermostat to the desired setting.
After a cool fan on delay timing of 2 seconds, the circulating
fan is energized at cooling speed.
12. If the unit will not operate, follow the instructions To Turn
Off Gas To Appliance and call your service technician or
gas supplier.
When the thermostat is satisfied, terminals G and Y are de-
energized, de-energizing the compressor and outdoor fan.
TO TURN OFF GAS TO UNIT
After a cool fan off delay timing of 30 seconds the circulating
fan is de-energized.
1. Set the thermostat to the OFF position.
2. Turn off all electric power to the appliance if service is to
be performed.
Unitary Products Group
15
66324-YIM-B-1004
3. Remove the control access panel.
4. Turn the gas valve switch to the OFF position. DO NOT
FORCE.
L
I
N
E
P
R
E
S
S
U
R
E
T
A
P
5. Replace the control access panel.
POST-START CHECK LIST (GAS)
After the entire control circuit has been energized and the
heating section is operating, make the following checks:
M
A
A
N
I
F
O
L
M
D
P
R
T
E
S
S
U
R
E
D
J
U
S
T
E
N
1. Check for gas leaks in the unit piping as well as the sup-
ply piping.
(
R
E
M
O
V
E
C
A
P
)
2. Check for correct manifold gas pressures. See Checking
Gas Input.
1
(
/
2
-
1
4
N
P
T
I
N
L
E
T
)
3. Check the supply gas pressure. It must be within the lim-
its 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 local gas utility for corrective action.
V
E
N
T
P
R
E
S
S
U
R
E
L
I
M
I
T
E
R
FIGURE 11 - GAS VALVE - REAR
Adjust as follows:
1. Remove the cap from the valve body. See Figure 6 for
location.
MANIFOLD GAS PRESSURE ADJUSTMENT
2. To decrease the gas pressure, turn the adjusting screw
counterclockwise.
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.
3. To increase the gas pressure, turn the adjusting screw
clockwise.
NOTE: The correct manifold pressure for natural gas fur-
naces is 3.5 IWG 0.2. The correct manifold pressure
for propane (LP) is 10.0 IWG 0.2.
BURNER INSTRUCTIONS
To check or change the burners, CLOSE THE MAIN MAN-
UAL SHUT-OFF VALVE AND SHUT OFF ALL POWER TO
THE UNIT.
1. Remove the two (2) #8 screws holding each burner in
place.
2. Remove the burner assembly from the manifold assem-
bly by moving the burner assembly forward, turn at an
angle and pull back.
3. Burners are now accessible for service.
FIGURE 10 - GAS VALVE - FRONT
16
Unitary Products Group
66324-YIM-B-1004
2. Lift the pilot and sensor from the assembly. Care must be
taken not to damage the pilot or sensor when removing
this assembly.
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.
ADJUSTMENT OF TEMPERATURE RISE
The pilot flame should envelope 1/2 inch of the end of the
flame sensor and not contain any yellow color, see Figure 7.
BTUH Output
1.08 × CFM
-----------------------------------
Degrees F Temp Rise =
OR
3
/
8
BTUH Output
-------------------------------------------------------------------------
CFM =
1.08 × Degrees F Temp Rise
FIGURE 12 - PROPER FLAME ADJUSTMENT
To adjust the pilot flame:
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 3
and 4.
1. Remove the pilot adjustment cover screw.
After the temperature rise has been determined, the CFM can
be calculated as follows:
2. Adjust the pilot adjustment screw to achieve the proper
pilot flame.
3. Replace the pilot adjustment cover screw after the pilot
flame is set.
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.
To remove the hot surface pilot assembly:
1. Disconnect the wiring from the gas valve to the hot sur-
face pilot assembly.
2. Remove the two (2) #8 screws holding the hot surface
pilot assembly in place.
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.
3. Remove the hot surface pilot assembly.
To remove the hot surface ignitor and flame sensor assem-
bly:
CHECKING GAS INPUT
NATURAL GAS
1. Remove the clip attaching the ignitor and sensor assem-
bly as shown in Figure 8.
1. Turn off all other gas appliances connected to the gas
meter.
2. With the furnace turned on, measure the time needed for
one revolution of the hand on the smallest dial on the
meter. A typical 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
consumed per hour from Table 9.
If the actual input is not within 5% of the furnace rating with
allowance being made for the permissible range of the regu-
lator setting, replace the orifice spuds with spuds of the
proper size.
FIGURE 13 - IGNITOR AND FLAME SENSOR
ASSEMBLY
Unitary Products Group
17
66324-YIM-B-1004
NOTE: To find 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.)
1
TABLE 11: GASE 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
SECURE OWNER'S APPROVAL
When the system is functioning properly, secure the owner's
approval. 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.
MAINTENANCE
NORMAL MAINTENANCE
90
86
Prior to any of the following maintenance proce-
dures, shut off all power to the unit, to avoid per-
sonal injury.
82
78
75
72
Periodic maintenance consists of changing or cleaning filters.
Under some conditions, the main burners should be cleaned.
69
67
FILTERS
64
62
Inspect once a month. Replace Disposable or clean Perma-
nent Type as necessary. DO NOT replace Permanent Type
with Disposable.
60
1.
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 11. 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 the 100,000 BTUH rating of the furnace.
MOTORS
Indoor and outdoor fan motors, along with the combustion
blower are permanently lubricated and require no mainte-
nance.
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, vac-
uum 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.
Exercise care when cleaning the coil so that the coil
fins are not damaged.
Do not permit the hot condenser air discharge to be
obstructed by overhanging structures or shrubs.
18
Unitary Products Group
66324-YIM-B-1004
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 adjust
for the proper flame, the burners may need cleaning.
7. Replace parts in the order they were removed in steps 1
through 3.
CHECKING SUPPLY AIR CFM
TO CLEAN BURNERS
Remove them from the furnace as explained in Burner
Instructions. Clean burners with hot water applied along top
of the burner.
To check the supply air CFM after the initial balancing
has been completed:
1. Remove the two ¼ inch dot plugs in the duct panel.
COMBUSTION AIR DISCHARGE
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.
Visually inspect discharge outlet periodically to insure soot
and dirt buildup is not excessive. If necessary, clean to main-
tain adequate combustion air discharge.
3. Using an inclined manometer, determine the pressure
drop across the dry evaporator coil. Since the moisture
on an evaporator coil may vary greatly, measuring the
pressure drop across a wet coil under field conditions
would be inaccurate. To ensure a dry coil, the compres-
sors should be deactivated while the test is being run.
The manufacture recommends that the furnace system be
inspected once a year by a qualified service person.
CLEANING FLUE PASSAGES AND HEATING ELE-
MENTS
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:
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 burner assembly as outlined in BURNER
INSTRUCTIONS.
2. Remove the screws securing the restrictor plate to the
tube sheet.
Failure to properly adjust the total system air quan-
tity can result in extensive system damage.
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.
After readings have been obtained, remove the tubes
and reinstall the two ¼ inch plugs removed in Step 1.
4. Brush out the inside of the restrictor plate to the tube
sheet.
De-energize the compressors before taking any test
measurements to ensure a dry indoor coil.
5. If soot build-up is particularly bad, remove the vent motor
and clean the wheel and housing.
Unitary Products Group
19
66324-YIM-B-1004
D1NH Coil Delta P vs Airflow
D1NH018
D1NH030-36
D1NH042-60
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
D1NH024
D1NH018
D1NH024
D1NH030-36
D1NH042
D1NH048-60
Linear (D1NH018)
Linear (D1NH024)
Linear (D1NH030-36)
Linear (D1NH048-60)
400
600
800
1000
1200
1400
1600
1800
2000
2200
Airflow (CFM)
FIGURE 14 - D1NH COIL DELTA P VS. AIRFLOW
TABLE 12: SUPERHEAT CHARGING TABLE FOR D1NH018
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 600 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
57
59
31.8
25.8
19.9
13.9
8.0
5.5
-
61
32.3
27.3
22.2
17.2
12.2
8.6
5.0
-
63
32.9
28.8
24.6
20.5
16.4
11.7
7.0
5.5
-
65
33.4
30.2
27.0
23.8
20.6
14.8
9.0
7.0
5.0
-
67
34.0
31.7
29.4
27.1
24.8
17.9
11.0
8.5
69
71
73
75
65
70
30.7
31.2
34.2
32.1
30.0
27.9
25.9
20.4
14.9
12.2
9.5
34.4
32.6
30.7
28.8
27.0
22.9
18.8
15.8
12.9
9.9
34.7
33.0
31.4
29.7
28.1
25.4
22.7
19.5
16.3
13.1
9.9
34.9
33.4
32.0
30.6
29.2
27.9
26.6
23.2
19.7
16.3
12.9
22.9
24.4
75
15.1
17.5
80
7.3
10.6
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
90
95
100
105
110
115
-
-
-
6.0
-
-
-
-
6.7
-
-
-
-
-
-
7.0
20
Unitary Products Group
66324-YIM-B-1004
TABLE 13: SUPERHEAT CHARGING TABLE FOR D1NH024
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 800 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
29.2
25.1
21.0
16.9
12.8
5.7
-
57
29.5
25.8
22.0
18.3
14.6
8.0
-
59
29.7
26.4
23.1
19.7
16.4
10.4
-
61
30.0
27.0
24.1
21.2
18.2
12.7
7.3
5.6
-
63
30.2
27.7
25.1
22.6
20.1
15.1
10.1
7.7
65
30.5
28.3
26.2
24.0
21.9
17.4
13.0
9.9
67
30.7
29.0
27.2
25.5
23.7
19.8
15.9
12.0
8.2
69
71
73
75
65
70
31.5
29.8
28.2
26.5
24.9
21.8
18.7
15.2
11.8
8.4
32.2
30.7
29.2
27.6
26.1
23.8
21.4
18.4
15.4
12.4
9.4
33.0
31.6
30.2
28.7
27.3
25.7
24.2
21.6
19.1
16.5
14.0
33.8
32.5
31.2
29.8
28.5
27.7
26.9
24.8
22.7
20.6
18.5
75
80
85
90
95
100
105
110
115
-
-
-
-
-
-
5.4
6.8
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TABLE 14: SUPERHEAT CHARGING TABLE FOR D1NH030
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 1,000 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
57
25.6
21.8
18.0
14.1
10.3
6.3
-
59
27.5
24.1
20.8
17.4
14.1
10.2
6.3
5.4
-
61
29.3
26.4
23.6
20.8
18.0
14.1
10.2
8.4
63
31.1
28.8
26.5
24.1
21.8
18.0
14.2
11.4
8.7
65
67
69
71
73
75
65
70
23.8
32.9
31.1
29.3
27.5
25.7
21.9
18.1
14.4
10.7
7.0
34.7
33.4
32.1
30.8
29.5
25.8
22.1
17.4
12.7
8.0
35.3
34.1
33.0
31.8
30.7
27.5
24.2
20.1
16.0
11.8
7.7
35.9
34.9
33.9
32.9
31.9
29.1
26.4
22.8
19.2
15.6
12.0
36.5
35.6
34.7
33.9
33.0
30.8
28.5
25.5
22.4
19.4
16.4
37.0
36.3
35.6
34.9
34.2
32.5
30.7
28.2
25.7
23.2
20.7
19.5
75
15.1
80
10.8
85
6.4
90
-
-
-
-
-
-
95
100
105
110
115
-
-
6.6
-
-
-
5.9
-
-
-
-
-
-
TABLE 15: SUPERHEAT CHARGING TABLE FOR D1NH036
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 1,200 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
32.4
29.1
25.7
22.4
19.1
13.5
7.9
6.4
-
57
33.0
29.8
26.6
23.5
20.3
15.2
10.0
8.0
59
33.5
30.5
27.5
24.5
21.5
16.8
12.2
9.6
61
63
34.6
31.9
29.3
26.6
24.0
20.2
16.4
12.9
9.3
65
67
69
71
73
75
65
70
34.0
31.2
28.4
25.6
22.7
18.5
14.3
11.3
8.2
35.1
32.6
30.1
27.7
25.2
21.9
18.6
14.5
10.5
6.4
35.6
33.3
31.0
28.7
26.4
23.6
20.7
16.2
11.6
7.1
35.7
33.6
31.5
29.3
27.2
24.8
22.3
18.4
14.5
10.6
6.7
35.8
33.9
31.9
30.0
28.0
26.0
24.0
20.7
17.4
14.2
10.9
35.9
34.2
32.4
30.6
28.8
27.2
25.6
23.0
20.3
17.7
15.1
36.0
34.4
32.8
31.2
29.6
28.4
27.2
25.2
23.3
21.3
19.3
75
80
85
90
95
100
105
110
115
6.0
7.1
-
-
-
5.2
5.8
-
-
-
-
-
-
-
Unitary Products Group
21
66324-YIM-B-1004
TABLE 16: SUPERHEAT CHARGING TABLE FOR D1NH042
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 800 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
25.6
23.3
21.1
18.8
16.5
14.3
12.1
9.4
57
25.8
23.7
21.6
19.4
17.3
15.1
12.9
10.1
7.3
59
26.0
24.0
22.1
20.1
18.1
15.9
13.7
10.7
7.8
61
63
26.5
24.8
23.1
21.3
19.6
17.4
15.2
12.1
9.0
65
26.7
25.1
23.6
22.0
20.4
18.2
15.9
12.7
9.5
67
69
71
73
75
65
70
26.2
24.4
22.6
20.7
18.9
16.6
14.4
11.4
8.4
26.9
25.5
24.1
22.6
21.2
19.0
16.7
13.4
10.1
6.8
27.4
26.0
24.7
23.3
21.9
20.0
18.0
15.3
12.6
9.8
27.9
26.6
25.3
23.9
22.6
21.0
19.4
17.2
15.1
12.9
10.8
28.4
27.1
25.9
24.6
23.3
22.0
20.7
19.1
17.5
16.0
14.4
28.9
27.7
26.5
25.2
24.0
23.0
22.0
21.0
20.0
19.0
18.0
75
80
85
90
95
100
105
110
115
6.7
-
-
-
5.4
5.9
6.3
-
-
-
-
-
-
-
7.1
TABLE 17: SUPERHEAT CHARGING TABLE FOR D1NH048
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 1,600 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
23.8
22.4
21.1
19.7
18.4
13.1
7.9
6.1
-
57
25.1
23.4
21.7
20.0
18.2
13.0
7.8
6.1
-
59
26.5
24.4
22.3
20.2
18.1
12.9
7.7
6.1
-
61
27.8
25.3
22.9
20.4
17.9
12.8
7.6
6.2
-
63
29.1
26.3
23.5
20.6
17.8
12.7
7.6
6.2
-
65
30.5
27.3
24.1
20.9
17.7
12.6
7.5
6.3
5.0
-
67
31.8
28.2
24.7
21.1
17.5
12.5
7.4
6.3
5.2
-
69
71
73
75
65
70
32.8
29.7
26.6
23.5
20.3
16.6
12.8
11.1
9.4
3.7
34.7
32.5
30.3
28.2
26.0
24.7
23.5
20.7
17.8
14.9
12.1
35.7
33.9
32.2
30.5
28.8
28.8
28.9
25.4
22.0
18.5
15.1
31.1
28.5
25.8
23.2
20.7
18.1
15.9
13.6
11.3
9.0
75
80
85
90
95
100
105
110
115
-
-
-
-
-
7.7
-
-
-
-
-
-
-
6.0
TABLE 18: SUPERHEAT CHARGING TABLE FOR D1NH060
SUPERHEAT AT COMPRESSOR SUCTION (F), AIRFLOW = 600 CFM
INDOOR WB TEMP. (°F)
OUTDOOR
TEMP. °F
55
57
59
30.9
25.2
19.5
13.8
8.2
6.0
-
61
32.5
27.2
22.0
16.8
11.6
8.6
5.6
-
63
34.0
29.3
24.5
19.8
15.0
11.2
7.4
5.8
-
65
35.6
31.3
27.0
22.7
18.4
13.8
9.1
7.1
5.0
-
67
37.2
33.3
29.5
25.7
21.8
16.3
10.9
8.4
69
71
73
75
65
70
27.7
29.3
37.3
34.2
31.1
28.1
25.0
20.5
16.0
12.6
9.2
37.3
35.1
32.8
30.5
28.2
24.6
21.1
16.8
12.5
8.2
37.4
35.9
34.4
32.9
31.4
28.8
26.2
21.0
15.8
10.5
5.3
37.5
36.8
36.0
35.3
34.6
32.9
31.3
26.2
19.0
12.9
6.8
21.1
23.2
75
14.5
17.0
80
7.9
10.9
85
-
-
-
-
-
-
-
-
-
-
-
-
-
-
90
95
100
105
110
115
-
-
-
5.9
-
-
-
-
5.8
-
-
-
-
-
-
-
22
Unitary Products Group
66324-YIM-B-1004
FIGURE 15 - TROUBLESHOOTING
TROUBLESHOOTING
NOTE: Before troubleshooting, familiarize yourself with the
START-UP and CHECKOUT procedures.
If the variable speed motor found in DNH060 mod-
els operates erratically check the fan control board
for the presence of a break-off tab. Remove tab if
present.
Troubleshooting of components necessarily
requires opening the electrical control box with the
power connected to the unit. Use extreme care
when working with the live circuits! Check the unit
nameplate for the correct line voltage and set the
volt meter to the correct range before making any
connections with line terminals.
The wire number or color and terminal designa-
tions referred to may vary. Check the wiring label
inside the control box access panel for the correct
wiring.
Unitary Products Group
23
66324-YIM-B-1004
FIGURE 16 - TYPICAL WIRING DIAGRAM D1NH 018, 024, 030, 036, 048 (208/230-1-60 POWER SUPPLY)
24
Unitary Products Group
66324-YIM-B-1004
FIGURE 17 - TYPICAL WIRING DIAGRAM D1NH 030, 036, 042, 048 (208/230-3-60 POWER SUPPLY)
Unitary Products Group
25
66324-YIM-B-1004
FIGURE 18 - TYPICAL WIRING DIAGRAM D1NH 030, 036, 042, 048 (460-3-60 POWER SUPPLY)
26 Unitary Products Group
66324-YIM-B-1004
FIGURE 19 - TYPICAL WIRING DIAGRAM D1NH 036, 042, 048, 060 (575-3-60 POWER SUPPLY)
Unitary Products Group
27
66324-YIM-B-1004
FIGURE 20 - TYPICAL WIRING DIAGRAM D1NH 060 (208-230-1-60 POWER SUPPLY)
28
Unitary Products Group
66324-YIM-B-1004
FIGURE 21 - TYPICAL WIRING DIAGRAM D1NH 060 (208-230-3-60 POWER SUPPLY)
Unitary Products Group
29
66324-YIM-B-1004
FIGURE 22 - TYPICAL WIRING DIAGRAM D1NH 060 (460-3-60 POWER SUPPLY)
30
Unitary Products Group
66324-YIM-B-1004
1
FIGURE 23 - WIRING DIAGRAM DETAIL B (460 & 575-3-60 POWER SUPPLY)
1.
See Figures 18 and 19.
TYPICAL WIRING DIAGRAM NOTES
(SEE FIGURES 16, 17, 18 AND 19)
1. All field wiring to be accomplished following city, local
Open all disconnects before servicing this unit.
and/or national codes in effect at time of installation of
this unit.
Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and
dangerous operation if any of the wire as supplied
with this unit must be removed it must be replaced
with type 105°C, 600V wire or equivalent clearly
renumbered for identification. Verify proper opera-
tion after servicing.
2. Motors are inherently protected.
3. See unit nameplate for maximum fuse size and minimum
circuit ampacity.
4. Unit factory wired for low or medium speed indoor blower
operation to change motor speed connect speed tap
wires from indoor blower motor per Detail B (Figure 23)
tape unused speed tap wires to prevent shorting and
secure near M2 contactor.
⊗
5. Select indoor blower speed to remain within the temper-
ature rise range on the nameplate in heating and to
obtain approximately 400 CFM/Ton in cooling.
FIGURE 24 - TYPICAL WIRING DIAGRAM
6. If both LR and ASCT are present, wire 801/BL and 805/
BL are connected to ASCT-3 if LR only is present wire
801/BL and 805/BL are connected to M1 coil. If ASCT
only is present wire 202/Y is connected to ASCT-3. If
neither LR or ASCT are present, Wire 202/Y is connect
to M1 coil.
1
LEGEND
1.
See Figures 16, 17, 18 and 19
Unitary Products Group
31
Subject to change without notice. Printed in U.S.A.
66324-YIM-B-1004
Copyright © 2004 by Unitary Products Group. All rights reserved.
Supersedes: 66324-YIM-A-1003/035-18266-002-A-1003
Unitary
Product
Group
5005
York
Drive
Norman
OK
73069
|