Champion Manufacturing Air Conditioner 48 User Manual

®
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  
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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  
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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.  
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Unitary Products Group  
66324-YIM-B-1004  
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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
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1
CHART  
1
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x
1
/
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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
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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.  
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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
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7
/
8
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8
-
7
/
8
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1
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3
/
3
2
"
D
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G
K
C
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1
-
5
/
8
"
D
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N
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K
O
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T
(
1
/
2
"
N
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T
I
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N
N
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C
I
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N
)
L
1
O
/
W
V
O
L
T
A
G
E
C
O
N
N
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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
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I
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6
-
3
/
4
6
FIGURE 8 - UNIT DIMENSIONS - FRONT & BOTTOM  
1
4
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A
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D
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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.  
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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:  
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1. Check for gas leaks in the unit piping as well as the sup-  
ply piping.  
(
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)
2. Check for correct manifold gas pressures. See Checking  
Gas Input.  
1
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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.  
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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  

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