York D2ce User Manual

036-21359-001-B-0302  
DESCRIPTION  
®
Sunline™ 2000 series convertible package rooftop mod-  
els have two independent refrigerant circuits for efficient  
part load operation. Although the units are primarily  
designed for curb mounting on a roof, they can also be  
slab-mounted at ground level or set on steel beams above  
a finished roof.  
Cooling only, cooling with gas heat and cooling with electric  
heat models are available with a wide variety of factory-  
mounted options and field-installed accessories to make  
them suitable for almost every application.  
Technical Guide  
All units are self-contained and assembled on full perimeter  
base rails with holes in the four corners for overhead  
rigging.  
Every unit is completely piped, wired, charged and tested  
at the factory to simplify field installation and to provide  
years of dependable operation. Powder paint cabinets pro-  
vide an exceptionally durable finish with the 750 hour salt  
spray process per ASTM-B117 test standard.  
All models (including those with an economizer) are suit-  
able for either bottom or horizontal duct connections. Mod-  
els with power exhaust are suitable for bottom duct  
connections only. For bottom duct, you remove the sheet  
metal panels from the supply and return air openings  
through the base of the unit. For horizontal duct, you  
replace the supply and return air panels on the rear of the  
unit with a side duct flange accessory.  
SINGLE PACKAGE  
GAS / ELECTRIC UNITS AND  
SINGLE PACKAGE AIR CONDITIONERS  
All models are available with five different outdoor air  
damper options:  
D2CE / D2CG 300 CONSTANT VOLUME  
25 NOMINAL TONS  
8.5 EER  
• Single enthalpy economizer  
• Differential (dual) enthalpy economizer  
• Single enthalpy economizer with power exhaust  
SUNLINE 2000 ™  
• Differential (dual) enthalpy economizer with  
power exhaust  
• Motorized outdoor air damper  
A fixed outdoor air intake assembly is shipped in the return  
air compartment of all units ordered without an economizer  
or motorized outdoor air damper option. The assembly  
includes a rain hood with a damper that can be set for 10,  
15 or 25% outdoor air. With bottom duct connections, the  
intake damper assembly should be mounted over the  
opening in the return air panel. With horizontal ductwork, it  
should be mounted on the return air duct.  
FOR DISTRIBUTION USE ONLY - NOT TO BE USED AT POINT OF RETAIL SALE  
036-21359-001-B-0302  
ANTI-RECYCLE TIMERS  
FIELD-INSTALLED ACCESSORIES  
Two solid state timers prevent the compressors from  
short-cycling. Once a compressor is de-energized, it  
will remain de-energized for approximately five min-  
utes.  
SINGLE INPUT ELECTRONIC ENTHALPY  
ECONOMIZERS  
Includes a slide-in/plug-in damper assembly with fully  
modulating spring-return monitor actuator capable of  
introducing up to 100% outdoor air with nominal 1%  
leakage type dampers.  
HIGH ALTITUDE NATURAL GAS  
Burner orifices and pilot orifices are provided for proper  
furnace operation at altitudes up to 6,000 feet.  
The enthalpy system contains one sensor that  
monitors the outdoor air and determines when the air is  
cool enough and dry enough to provide “free” cooling.  
PROPANE  
Burner orifices, pilot orifices and gas valve parts are  
provided to convert a natural gas furnace to propane.  
The rainhood is painted to match the basic unit and  
must be field-assembled before installing.  
HIGH ALTITUDE PROPANE  
Power exhaust is not available as a field installed  
option.  
Burner orifices and pilot orifices are provided for proper  
furnace operation at altitudes up to 6,000 feet. This  
accessory supplements the basic propane conversion  
kit.  
DUAL INPUT ELECTRONIC ENTHALPY  
ECONOMIZERS  
Includes a slide-in / plug-in damper assembly with fully  
modulating spring-return monitor actuator capable of  
introducing up to 100% outdoor air with nominal 1%  
leakage type dampers.  
SIDE DUCT FLANGES  
One inch flanges replace the supply and return air pan-  
els on the rear of the unit to accommodate horizontal  
duct connections. These flanges can also be used indi-  
vidually for bottom supply/horizontal return or horizon-  
tal supply/bottom return. They cannot be used on units  
with power exhaust.  
This enthalpy system contains one sensor that moni-  
tors the outdoor air and one sensor that monitors the  
return air. The logic module compares these two val-  
ues and modulates the dampers providing the maxi-  
mum efficiency of economizer system.  
BAROMETRIC RELIEF DAMPER  
This damper accessory can be used to relieve internal  
air pressure on units with an economizer but no power  
exhaust. This accessory includes a rain hood, a bird  
screen and a fully assembled damper. With bottom  
duct connections, the damper should be mounted over  
the opening in the return air panel. With horizontal  
ductwork, the accessory should be mounted on the  
return air duct.  
The rainhood is painted to match the basic unit and  
must be field-assembled before installing.  
Power exhaust is not available as a field installed  
option.  
MOTORIZED OUTDOOR AIR INTAKE DAMPER  
Includes a slide-in/plug-in damper assembly with a  
2-position, spring return motor actuator which opens to  
some pre-set position whenever the supply air blower  
is operating and will drive fully closed when the blower  
unit shuts down.  
ECONOMIZER / POWER EXHAUST RAIN HOODS  
A rain hood accessory must be used on units with an  
economizer, a motorized damper, or a combined econ-  
omizer with power exhaust option. These accessories  
include all the hood panels, the necessary components  
and hardware for field assembly.  
The rain hood is painted to match the basic unit and  
must be field assembled before installing.  
Power exhaust is not available as a field installed  
option.  
HIGH SPEED DRIVE  
A smaller blower pulley and a shorter belt increase the  
speed of the supply air blower for applications with a  
higher CFM and/or static pressure requirement.  
ROOF CURBS  
Fourteen inch high roof curbs provide a water-tight seal  
between the unit and the finished roof. These full  
perimeter curbs meet the requirements of the National  
Roofing Contractors Association (NRCA) and are  
shipped knocked-down for field assembly. They're  
designed to fit inside the base rails of the unit and  
include both a wood nailing strip and duct hanger sup-  
ports.  
LOW AMBIENT CONTROLS TO 0°F  
An autotransformer and a thermostat maintain stable  
system operation by reducing the speed of the con-  
denser fan motor at low outdoor temperatures. The kit  
Unitary Products Group  
3
036-21359-001-B-0302  
also includes a 1-phase motor to replace the unit's  
standard 3-phase condenser fan motor. Standard units  
can operate down to 45°F.  
Provides coil guard and fastners.  
COIL GUARD KIT  
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CAPACITY RATINGS - (ARI 360)*  
MODEL MBH EER IPLV  
COOLING WITH GAS HEAT  
MODEL  
COOLING WITH ELECTRIC HEAT  
MBH EER IPLV  
D2CG300N240  
D2CG300N320  
COOLING ONLY  
D2CE300  
290  
8.5  
8.3  
D2CE300E018  
D2CE300E036  
D2CE300E054  
D2CE300E072  
290  
290  
287  
284  
8.5  
8.5  
8.5  
8.5  
8.6  
8.6  
8.2  
8.2  
290  
8.5  
8.3  
290  
8.5  
8.7  
*.  
Outside the scope of ARI Standard 340/360.  
EER=Energy Efficiency Rating at full load-the cooling capacity in Btu’s per hour (Btuh) divided by the power input in watts, expressed in Btuh per  
watt (Btuh/watt).  
IPLV - Integrated part load value.  
NOTE: All cooling is three stage.  
Note: All gas units are two-stage heating. First stage is 50% of total.  
GAS HEAT RATINGS  
All models are 80% Steady State Efficiency (S.S.E.).  
MBH Input  
MBH Output  
MODEL  
Stage  
1&2  
300  
Stage  
1&2  
240  
Stage 1  
Stage 1  
D2CG300N240  
D2CG300N320  
150  
200  
120  
160  
400  
320  
Sound Power (db 10-12 Watts)  
Octave Band Centerline Frequency (Hz) SWL  
IWG RPM BHP 63 125 250 500 1,000 2,000 4,000 8,000 db(A)  
ESP  
Blower  
Unit CFM  
db(A)  
@ 10 Ft.*  
65  
Size  
)
300 10,000 1.30 1,160 12.5 108 108 98 91  
93  
86  
81  
76  
98  
*.  
At a distance of 10 ft.from the blower.  
NOTE: These values have been derived using a model of sound propagation,  
measuring the indoor ambient sound levels ten feet from the source. The dBA  
values provided are for reference only. Calculation of dBA values cover matters  
of system design and application. This constitutes an exception to any specifi-  
cation or guarantee requiring a dBA value or sound data in any other form than  
sound power level ratings.  
4
Unitary Products Group  
036-21359-001-B-0302  
COOLING CAPACITIES- 25 TON (DCE / DCG300)  
Tem pera ture of Air on Con denser Coil  
Air On  
Evaporator  
Coil  
85?F  
95?F  
SensibleCapacity1, MBH  
SensibleCapacity1, MBH  
Total Power  
Cap.1 Input2  
Total Power  
Cap.1 Input2  
WB  
CFM  
EnteringDryBulb, ?F  
86 83 80 77 74 71 68  
EnteringDryBulb, ?F  
86 83 80 77 74 71 68  
MBH  
KW  
MBH  
KW  
?F  
72  
371  
340  
329  
329  
365  
336  
324  
324  
359  
332  
318  
318  
354  
326  
314  
314  
349  
321  
310  
310  
318  
290  
282  
282  
27.1 277 240 203 167 130  
-
-
354  
28.8 268 231 195 158 122  
-
-
67  
12,000  
62  
26.1 335 299 262 226 189 152 116 325  
25.5 329 329 329 293 256 219 183 315  
25.5 329 329 329 292 256 219 183 314  
27.7 324 288 251 214 178 141 105  
27.1 315 315 315 278 241 205 168  
27.1 314 314 314 278 241 205 168  
57  
72  
27.0 260 226 193 159 125  
-
-
348  
28.6 257 223 189 155 122  
-
-
67  
11,000  
62  
25.9 317 283 249 216 182 148 114 321  
25.3 324 324 313 279 245 212 178 309  
25.3 324 324 315 281 247 214 180 309  
27.5 312 279 245 211 178 144 110  
26.9 309 309 307 273 239 206 172  
26.9 309 309 309 275 242 208 174  
57  
72  
26.8 244 213 182 151 120  
-
-
342  
28.5 245 214 184 153 122  
-
-
67  
10,000  
62  
25.7 298 268 237 206 175 144 113 317  
25.2 318 318 296 265 235 204 173 304  
25.1 318 318 301 270 239 208 177 304  
27.4 301 270 239 208 177 146 115  
26.8 304 304 299 268 237 207 176  
26.7 304 304 304 273 242 211 180  
57  
72  
26.6 229 201 173 145 117  
-
-
338  
28.2 228 200 172 144 116  
-
-
67  
9,000  
62  
25.5 280 252 224 196 168 141 113 312  
25.0 314 306 282 254 226 198 170 300  
25.0 314 308 286 258 230 203 175 300  
27.1 279 251 223 195 167 139 111  
26.5 300 295 280 253 225 197 169  
26.5 300 297 285 257 229 201 173  
57  
72  
26.4 215 190 165 140 115  
-
-
334  
28.0 211 186 161 136 111  
-
-
67  
8,000  
62  
25.3 262 237 212 187 162 137 112 307  
24.8 310 293 268 243 218 193 168 297  
24.8 310 297 272 247 222 197 172 297  
26.9 257 232 207 182 157 132 107  
26.3 297 287 262 237 212 187 162  
26.3 297 291 266 241 216 191 166  
57  
72  
25.2 186 167 148 129 110  
-
-
304  
26.8 177 158 138 119 100  
-
-
67  
6,000  
62  
24.0 226 206 187 168 149 130 111 277  
23.7 277 258 240 221 201 192 163 270  
23.7 281 262 243 224 205 186 167 270  
25.5 213 194 175 156 137 118 99  
25.2 262 243 225 206 187 167 148  
25.2 266 247 228 209 190 171 152  
57  
Tem pera ture of Air on Con denser Coil  
Air On  
Evaporator  
Coil  
105?F  
115?F  
SensibleCapacity1, MBH  
SensibleCapacity1, MBH  
Total Power  
Cap.1 Input2  
Total Power  
Cap.1 Input2  
WB  
CFM  
EnteringDryBulb, ?F  
86 83 80 77 74 71 68  
EnteringDryBulb, ?F  
86 83 80 77 74 71 68  
MBH  
KW  
MBH  
KW  
?F  
72 337  
67 310  
62 300  
57 299  
72 331  
67 306  
62 295  
57 294  
72 326  
67 302  
62 290  
57 290  
72 322  
67 297  
62 286  
57 286  
72 319  
67 293  
62 283  
57 283  
72 290  
67 264  
62 258  
57 258  
30.7 264 228 191 155 118  
-
-
320  
32.6 261 224 188 151 114  
-
-
29.5 309 283 246 210 173 137 100 294  
28.8 300 300 300 263 226 190 153 285  
28.8 299 299 299 263 226 190 153 285  
31.3 294 278 242 205 169 132 95  
30.5 285 285 285 248 212 175 138  
30.5 285 285 285 248 211 175 138  
12,000  
11,000  
10,000  
9,000  
30.5 254 221 187 153 119  
-
-
315  
32.3 252 218 185 151 117  
-
-
29.3 302 276 242 208 174 141 107 291  
28.5 295 295 294 260 226 192 159 280  
28.5 294 294 294 261 227 193 160 280  
31.0 291 273 239 205 171 138 104  
30.3 280 280 280 246 213 179 145  
30.3 280 280 280 246 213 179 145  
30.2 244 213 183 152 121  
-
-
310  
32.1 243 212 181 151 120  
-
-
29.0 294 268 237 206 176 145 114 287  
28.3 290 290 287 256 226 195 164 276  
28.2 290 290 290 259 228 197 166 275  
30.8 287 267 236 205 174 143 112  
30.0 276 276 276 245 214 183 152  
29.9 275 275 275 244 214 183 152  
30.0 228 200 172 144 116  
-
-
306  
31.8 228 200 172 144 116  
-
-
28.8 276 251 223 195 167 139 111 283  
28.1 286 284 271 243 215 187 159 272  
28.1 286 285 273 245 217 189 161 272  
30.5 274 251 223 195 167 139 111  
29.8 272 272 262 234 206 178 150  
29.7 272 272 261 234 206 178 150  
29.8 212 187 162 137 112  
-
-
303  
31.6 213 188 163 138 113  
-
-
28.6 259 234 209 184 159 134 109 278  
28.0 283 278 255 230 205 180 155 269  
28.0 283 280 257 232 207 182 157 269  
30.3 260 235 210 185 160 135 110  
29.6 269 269 248 223 198 173 148  
29.6 269 269 248 223 198 173 148  
8,000  
28.3 180 161 141 122 103  
-
-
276  
30.0 183 164 145 125 106  
-
-
26.9 224 200 181 162 142 123 104 251  
26.6 258 241 223 204 184 165 146 245  
26.6 258 242 224 205 186 167 148 245  
28.5 222 203 194 165 146 127 108  
28.2 245 239 220 201 182 163 144  
28.2 245 240 221 202 182 163 144  
6,000  
1These ca paci ties are gross rat ings. For net ca pac ity, de duct the heat of the sup ply air blower mo tor, MBH = 3.415 x KW. Ref er to the ap pro pri ate Blower  
Per form ance Ta ble for the KW of the sup ply air blower mo tor.  
2These rat ings in clude the con denser fan mo tors (To tal 2.3 KW) and the com pres sor mo tors but not the sup ply air blower mo tor.  
NominalRating  
AllSensibleCapacity  
Unitary Products Group  
5
036-21359-001-B-0302  
BLOWER PERFORMANCE- 25 TON (DCE/DCG300)  
DCE300-BOTTOMDUCTCONNECTIONS (COOLINGAPPLICATIONS)  
7500 CFM  
8750 CFM  
10000 CFM  
11250CFM  
12500 CFM  
BLOWER PULLEY  
TURNS  
OPEN:  
SPEED  
(rpm)  
ESP  
(iwg)  
OUTPUT INPUT  
(kW)  
ESP  
(iwg)  
OUTPUT INPUT  
ESP  
(iwg)  
STANDARD DRIVE:  
OUTPUT INPUT  
ESP  
(iwg)  
OUTPUT INPUT  
(kW)  
ESP  
(iwg)  
OUTPUT INPUT  
(kW)  
(bhp)  
(bhp)  
(kW)  
(bhp)  
(kW)  
(bhp)  
(bhp)  
975  
6.0*  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
1.4  
1.6  
1.8  
2.0  
2.1  
2.4  
2.6  
5.9  
6.2  
6.6  
6.9  
7.3  
7.7  
8.0  
4.9  
5.1  
5.4  
5.7  
6.0  
6.3  
6.6  
1.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
7.3  
7.7  
8.1  
8.5  
8.9  
9.3  
9.7  
6.0  
0.5  
0.7  
0.9  
1.1  
1.3  
1.6  
1.8  
8.8  
7.2  
7.6  
8.0  
8.3  
8.7  
9.1  
9.5  
-
-
-
8.9  
-
-
-
-
-
-
1005  
1040  
1070  
1100  
1135  
1165  
6.3  
6.7  
7.0  
7.3  
7.6  
8.0  
9.2  
9.7  
0.1  
0.3  
0.6  
0.8  
1.0  
1.3  
10.9  
11.4  
11.9  
12.4  
13.0  
13.5  
9.4  
9.8  
-
-
-
10.2  
10.6  
11.1  
11.6  
-
-
-
10.2  
10.6  
11.0  
0.2  
0.4  
0.7  
14.3  
14.9  
15.5  
11.7  
12.2  
12.7  
ACCESSORY DRIVE:  
1140  
1180  
1215  
1255  
1290  
1330  
1365  
NOTES:  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
2.4  
2.7  
2.9  
3.2  
3.4  
3.7  
3.9  
7.7  
8.2  
6.3  
6.7  
7.0  
7.4  
7.8  
8.2  
8.6  
2.1  
2.3  
2.6  
2.9  
3.1  
3.4  
3.7  
9.4  
9.9  
7.7  
8.1  
8.5  
9.0  
9.4  
9.9  
10.3  
1.6  
1.9  
2.2  
2.5  
2.7  
3.0  
3.3  
11.2  
11.8  
12.3  
12.9  
13.5  
14.1  
14.7  
9.2  
9.7  
1.1  
1.4  
1.7  
2.0  
2.2  
2.6  
2.9  
13.1  
13.7  
14.3  
15.0  
15.6  
16.4  
17.0  
10.7  
11.2  
11.7  
12.3  
12.8  
13.4  
13.9  
0.5  
0.8  
1.1  
1.4  
-
15.0  
15.8  
16.4  
17.2  
-
12.3  
12.9  
13.5  
14.1  
-
8.6  
9.1  
10.4  
11.0  
11.5  
12.0  
12.6  
10.1  
10.6  
11.1  
11.6  
12.1  
9.5  
10.0  
10.5  
-
-
-
-
-
-
Blower performance is based on cooling only unit, with fixed outdoor air, 2" T/A filters and a dry evaporator coil.  
Refer to page 7 for additional static resistances.  
ESP - External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the total static pressure of the  
blower.  
* FACTORY SETTING  
BLOWER PERFORMANCE - 25 TON (DCE/DCG300)  
DCG300 -BOTTOMDUCTCONNECTIONS (COOLINGAPPLICATIONS)  
7500 CFM  
8750 CFM  
10000 CFM  
11250 CFM  
12500 CFM  
BLOWER PULLEY  
TURNS  
OPEN:  
SPEED  
(rpm)  
ESP  
(iwg)  
OUTPUT INPUT  
(kW)  
ESP  
(iwg)  
OUTPUT INPUT  
ESP  
(iwg)  
STANDARD DRIVE:  
OUTPUT INPUT  
ESP  
(iwg)  
OUTPUT INPUT ESP  
(kW)  
OUTPUT INPUT  
(kW)  
(bhp)  
(bhp)  
(kW)  
(bhp)  
(kW)  
(bhp)  
(iwg)  
(bhp)  
975  
6.0*  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
1.2  
1.4  
1.6  
1.8  
2.0  
2.2  
2.4  
5.9  
6.2  
6.6  
6.9  
7.3  
7.7  
8.0  
4.9  
5.1  
5.4  
5.7  
6.0  
6.3  
6.6  
0.5  
0.7  
0.9  
1.1  
1.3  
1.6  
1.8  
7.3  
7.7  
8.1  
8.5  
8.9  
9.3  
9.7  
6.0  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1005  
1040  
1070  
1100  
1135  
1165  
6.3  
6.7  
7.0  
7.3  
7.6  
8.0  
-
-
9.7  
-
-
-
-
0.2  
0.4  
0.6  
0.8  
1.0  
8.0  
8.3  
8.7  
9.1  
9.5  
-
-
-
-
10.2  
10.6  
11.1  
11.6  
-
-
-
-
-
-
-
-
0.2  
13.5  
11.0  
ACCESSORY DRIVE:  
1140  
1180  
1215  
1255  
1290  
1330  
1365  
NOTES:  
6.0  
5.0  
4.0  
3.0  
2.0  
1.0  
0.0  
2.2  
2.5  
2.7  
3.0  
3.2  
3.5  
3.7  
7.7  
8.2  
8.6  
9.1  
9.5  
10.0  
10.5  
6.3  
6.7  
7.0  
7.4  
7.8  
8.2  
8.6  
1.6  
1.9  
2.1  
2.4  
2.7  
3.0  
3.2  
9.4  
9.9  
7.7  
8.1  
8.5  
9.0  
9.4  
9.9  
10.3  
0.9  
1.2  
1.4  
1.7  
2.0  
2.3  
2.6  
11.2  
11.8  
12.3  
12.9  
13.5  
14.1  
14.7  
9.2  
9.7  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.3  
0.6  
0.9  
1.2  
1.5  
1.8  
13.7  
14.3  
15.0  
15.6  
16.4  
17.0  
11.2  
11.7  
12.3  
12.8  
13.4  
13.9  
10.4  
11.0  
11.5  
12.0  
12.6  
10.1  
10.6  
11.1  
11.6  
12.1  
Blower performance is based on cooling only unit, with fixed outdoor air, 2" T/A filters and a dry evaporator coil.  
Refer to page 7 for additional static resistances.  
ESP - External Static Pressure available for the supply and return air duct system. All internal unit resistances have been deducted from the total static pressure of the  
blower.  
* FACTORY SETTING  
6
Unitary Products Group  
036-21359-001-B-0302  
ELECTRICAL DATA - Units With ElectricHeat  
MINIMUM  
CIRCUIT  
MAXIMUM  
OVERCURRENT  
DEVICE (1)  
ELECTRIC HEATER OPTION  
MODEL  
D2CE  
POWER  
SUPPLY  
AMPACITY  
MODEL  
kW(1)  
STAGES AMPS  
(AMPS)(AMPS)  
139.5  
142.1  
189.0  
198.4  
139.5  
156.5  
178.2  
221.5  
68.3  
300A25  
300A25  
300A25  
300A25  
300A25  
300A25  
300A25  
300A25  
300A46  
300A46  
300A46  
300A46  
300A58  
300A58  
300A58  
300A58  
208-3-60  
208-3-60  
208-3-60  
208-3-60  
230-3-60  
230-3-60  
230-3-60  
230-3-60  
460-3-60  
460-3-60  
460-3-60  
460-3-60  
575-3-60  
575-3-60  
575-3-60  
575-3-60  
E018  
E036  
E054  
E072  
E018  
E036  
E054  
E072  
E018  
E036  
E054  
E072  
E018  
E036  
E054  
E072  
13.5  
27.0  
40.6  
54.1  
18.0  
36.0  
54.0  
72.0  
18.0  
36.0  
54.0  
72.0  
18.0  
36.0  
54.0  
72.0  
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
37.5  
75.1  
112.6  
150.1  
43.3  
86.6  
129.9  
173.2  
21.7  
43.3  
65.0  
86.6  
17.3  
34.6  
52.0  
69.3  
175  
175  
200  
225  
175  
175  
200  
250  
80  
78.3  
89.1  
80  
100  
125  
70  
110.7  
56.1  
62.6  
70  
71.2  
80  
88.5  
100  
1
NOMINALVOLTAGE  
VOLTAGE  
208  
230  
KWCAP.MULTIPLIER  
208  
240  
480  
600  
1.00  
0.92  
0.92  
0.92  
460  
575  
PHYSICAL DATA  
BASIC UNITS  
OPERATING WEIGHTS  
DCE/DCG/DCV  
MODEL  
DCE  
Wd. DCinV.)18  
SIZE  
(Cool  
(MBH)300  
ing  
MODELS  
300  
(Dia.  
15  
CEN  
TRIFU  
GAL  
BLOWER  
x
x
15 (Cool  
ing  
EVAPORATOR  
BLOWER  
FAN MO TOR HP  
ROWS DEEP  
FINS PER INCH  
N240  
2930  
2970  
2995  
3035  
160  
BasicUnit DCG (Gas / Elec tric)  
4
13.5  
25.0  
N320  
N240  
N320  
EVAPORATOR  
COIL  
DCV (Gas / Elec tric)  
Economizer  
FACE AREA (Sq. Ft.)  
PRO PEL LER DIA. (in.) (Each)30  
CONDENSER  
FAN  
(Two Per Unit)  
Economizerwith  
PowerExhaust  
Options MotorizedDamper  
FAN  
MO  
(Each)  
TOR  
HP  
245  
NOM. CFM TO TAL  
ROWS DEEP  
FINS PER INCH  
FACE AREA (Sq. Ft.)  
7200  
3
15  
150  
25  
30  
CONDENSER  
COIL  
18 KW  
36 KW  
54 KW  
72 KW  
ElectricHeater  
(Elec/Elec only)  
43.3  
35  
40  
COMPRESSOR 12.5 TON, SCROLL, HER METIC,  
(Qty. Per Unit) TAN DEM (2 STAGE, 50% ea.)  
2
QUAN  
QUAN  
QUAN  
TITY  
TITY  
TITY  
PER  
PER  
PER  
UNIT  
UNIT  
UNIT  
21.4  
(16" Roof Curb X  
20"  
25"  
(14" EconomizeXr/MotorizedDa2m0"per  
1X85  
45  
X
2")2  
2")4  
2")3  
BarometricDamper  
(16"  
X
AIR  
FILTERS  
X
Accesso-  
55  
Rain Hood  
TO TAL FACE AREA (sq. ft.)  
REFRIGERANT  
22 (lbs./oz.)  
ries  
Economizer/PowerExhaustRain  
Hood  
90  
SYS TEM NO. 1  
20/8  
20/0  
CHARGE  
Wood Skid  
220  
SYS TEM NO. 2  
Unitary Products Group  
7
036-21359-001-B-0302  
BLOWER MOTOR AND DRIVE DATA  
BELT  
(NOTCHED)  
MOTOR1  
ADJUSTABLEMOTORPULLEY  
FIXED BLOWER PUL LEY  
OUTSIDE PITCH  
BLOWER  
DRIVE RANGE  
(RPM)  
MODEL  
SIZE  
OUT-  
SIDE  
DIA.  
PITCH  
DIA.  
(IN.)  
PITCH  
LENGTH QTY.  
(IN.)  
EFF.  
(%)  
DESIG-  
NATION  
BORE DESIG-  
(IN.) NATION  
BORE DESIG-  
(IN.) NATION  
HP FRAME  
DIA.  
(IN.)  
DIA.  
(IN.)  
(IN.)  
Stan-  
975/1165  
dard  
High  
1B5V110 11.3  
11.1 1-7/16 5VX860 86.0  
9.5 1-7/16 5VX840 84.0  
1
1
1LVP58B70  
A
6.2-  
7.4  
25 TON  
15 254T 91  
7.5  
1 5/8  
Speed 1140/1365  
Access  
1B5V94  
9.7  
1All mo tors have a nomi nal speed of 1800 RPM, a 1.15 serv ice fac tor and a solid base. They can op er ate to the limit of their serv ice fac tor be cause they are lo cated in the mov ing air, upstream  
of any heat ing de vice.  
STATIC RESISTANCES*  
AIRFLOW (CFM)  
7500  
ESP  
(IWG)  
8750  
ESP  
(IWG)  
10000  
ESP  
(IWG)  
11250  
ESP  
(IWG)  
12500  
ESP  
(IWG)  
DESCRIPTION  
DEDUCTIONS: (SUBTRACT VALUES BELOW FROM UNIT'S AVAILABLE ESP)  
ALLOWANCE FOR WET COIL:  
ECONOMIZER (RETURN DUCT):  
18kW ELECTRIC HEAT:  
0.10  
0.06  
0.31  
0.38  
0.62  
0.68  
0.10  
0.09  
0.43  
0.52  
0.84  
0.93  
0.10  
0.11  
0.56  
0.68  
1.10  
1.21  
0.10  
0.14  
0.71  
0.87  
1.39  
1.54  
0.10  
0.18  
0.87  
1.07  
1.72  
1.90  
36kW ELECTRIC HEAT:  
54kW ELECTRIC HEAT:  
72kW ELECTRIC HEAT:  
ADDITIONS: (ADD VALUES BELOW TO UNIT'S AVAILABLE ESP)  
HORIZONTAL (SIDE) SUPPLY DUCT:  
HORIZONTAL (SIDE) RETURN DUCT:  
0.31  
0.05  
0.26  
0.05  
0.27  
0.05  
0.31  
0.05  
0.41  
0.05  
POWER EXHAUST PERFORMANCE  
STATICRESISTANCEOFRETURNDUCTWORK,IWG  
0.3 0.4 0.5  
MOTOR  
SPEED  
0.2  
0.6  
CFM  
5250  
KW  
CFM  
4500  
KW  
CFM  
4200  
KW  
CFM  
3750  
KW  
CFM  
3000  
KW  
HIGH*  
0.83  
0.85  
0.88  
0.93  
0.99  
MEDIUM  
4900  
4400  
0.77  
0.72  
3900  
3700  
0.79  
0.74  
3500  
3000  
0.82  
0.78  
2900  
-
0.85  
-
-
-
-
-
LOW  
*FactorySetting  
Power Ex haust mo tor is a 3/4 HP, PSC type with sleeve bear ings, a 48 frame and in her ent protection.  
ELECTRICAL DATA- Cool ing Only Units and Units With Gas Heat  
ELECTRICAL DATA - Cooling Only Units & Units With Gas Heat  
COMPRESSORS  
(QTY. 2)  
COND. FAN  
(#1 & #2)  
SUPPLY AIR  
MINIMUM  
CIRCUIT  
MAXIMUM  
BLOWER MOTOR  
POWER  
SUPPLY  
OVERCURRENT  
MODEL NO.  
RLA  
LRA  
HP  
FLA  
AMPACITY  
(AMPS)  
DEVICE (1)  
(AMPS)  
HP  
RLA  
(ea.)  
(ea.)  
(ea.)  
(ea.)  
D2CE300 208/230-3-60  
41.4  
20.0  
16.4  
312  
150  
108  
1
1
1
4.2  
2.1  
2.0  
15  
15  
15  
38.6  
19.3  
15.4  
139.5  
68.3  
56.1  
175  
80  
& D2CG300  
460-3-60  
575-3-60  
70  
VOLTAGE  
POWERSUPPLY  
MIN.  
MAX.  
253  
VOLTAGE  
LIMITATIONS**  
208/230-3-60  
460-3-60  
187  
414  
518  
506  
575-3-60  
630  
**Rated in ac cor dance with ARI Stan dard 110, utili za tion range “A”.  
8
Unitary Products Group  
036-21359-001-B-0302  
FIELD WIRING - DCE/DCG ELECTRIC/ELECTRIC AND GAS/ELECTRIC UNITS  
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Unitary Products Group  
9
036-21359-001-B-0302  
ECONOMIZER / MOTORIZED DAMPER,  
FIXED OUTDOOR INTAKE AIR AND  
POWER EXHAUST RAIN HOODS  
(See detail "Y")  
All dimensions are in inches. They are  
subject to change without notice. Certified  
dimensionswillbeprovideduponrequest.  
FIELD-SUPPLIED  
DISCONNECT SWITCH  
LOCATION  
BLOWER  
ACCESS  
COMPRESSOR  
ACCESS  
(See detail "X")  
BLOWER MOTOR  
ACCESS  
UTILITIES ENTRY DATA  
OPENING  
OPTIONAL COIL  
GUARD KIT  
BLOWER  
COMPARTMENT  
ACCESS  
48-5/8" (15TON)  
52-5/8" (20TON)  
(Auxiliary)  
HOLE  
SIZE  
(DIA.)  
USED FOR  
DOT PLUG  
(For pressure  
Drop Reading)  
1-1/8" KO  
3/4" NPS (Fem.)  
3-5/8" KO  
Control  
Wiring  
Front  
Bottom  
Front  
Bottom  
Pip  
A
B
CONDENSER  
COILS  
Power  
Wiring  
21"  
5"  
3" NPS (Fem.)  
KO  
1
C2-3/8"  
Gas  
ing  
(Front)  
125-1/4" (15 TON)  
136-1/4" (20 TON)  
Gas Pip ing (Bot-  
tom)1,2  
D
1-11/16" Hole  
FRONT  
VIEW  
9-3/4"  
5-7/8"  
ELECTRIC HEAT  
ACCESS  
92"  
1
1" pip ing MPT re quired  
(A)  
CONTROL WIRING  
ENTRY  
2 Open ing in the bot tom of the unit can be lo cated by the slice  
in the in su la tion.  
CONTROL BOX  
ACCESS  
11-1/2"  
(B)  
35"  
BOTTOM SUPPLY  
AND RETURN  
AIR OPENINGS  
(See Note)  
POWER WIRING  
ENTRY  
RETURN AIR  
SUPPLY AIR  
OUTDOOR AIR  
24-1/4" (15 TON)  
36-1/4" (20 TON)  
RETURN  
AIR  
3-3/4"  
33"  
SUPPLY  
AIR  
2-3/4"  
21-1/2"  
OUTDOOR AIR  
(Economizer)  
UNIT BASE WITH RAILS  
Shown separately to illustrate  
Bottom Duct openings and Power  
Connection locations  
(B)  
POWER WIRING  
ENTRY  
(A)  
CONTROL WIRING  
ENTRY  
8-1/8"  
9-3/4"  
NOTE:  
For curb mounted units, refer to the curb hanger  
dimensions of the curb for the proper size of the  
supply and return air duct connections.  
9-1/4"  
12-1/2"  
ECONOMIZER / MOTORIZED DAMPER,  
FIXED OUTDOOR INTAKE AIR AND  
POWER EXHAUST RAIN HOODS  
(See detail "Y")  
BLOWER  
ACCESS  
CLEARANCES  
FIELD-SUPPLIED  
DISCONNECT SWITCH  
LOCATION  
BLOWER MOTOR  
ACCESS  
COMPRESSOR  
Front  
Back  
36"  
ACCESS  
(See detail "X")  
BLOWER  
COMPARTMENT  
ACCESS  
24" (Less Econo mizer)  
49" (With Econo mizer)  
OPTIONAL  
COIL GUARD  
KIT  
(Auxiliary)  
DOT PLUG  
(For pressure  
Drop Reading)  
24" (Less Econo mizer)  
36" (With Econo mizer)  
52-5/8  
LeftSide(FilterAccess)  
GAS HEAT  
ACCESS  
Right Side (Cond. Coil)  
BelowUnit1  
36"  
20"  
CONDENSER  
COILS  
VENT AIR  
OUTLET  
HOODS  
72" With 36" Maxi mum  
Hori zon tal Over hang  
(For Con denser Air  
Dis charge)  
21"  
5"  
Above Unit2  
7-1/8"  
COMBUSTION  
AIR INLET  
HOOD  
136-1/4  
6-3/8"  
9-3/4"  
92"  
1Units(applicableinU.S.A. only)maybeinstalledoncombustiblefloors  
(C)  
5-7/8"  
(A)  
GAS SUPPLY  
ENTRY  
made from wood or class A, B or C roof cov er ing ma te rial.  
2
CONTROL WIRING  
ENTRY  
46-5/8"  
Units must be in stalled ou doors. Over hang ing struc tures or shrubs should  
not ob struct con denser air dis charge out let.  
CONTROL BOX  
ACCESS  
11-1/2"  
(B)  
35"  
POWER WIRING  
ENTRY  
BOTTOM SUPPLY  
AND RETURN  
AIR OPENINGS  
(See Note)  
NOTE:  
RETURN AIELEC/ELECModels: Units and duct work are ap proved for zero clear ance to  
combustiblematerialswhenequippedwithelectricheaters.  
FRONT  
VIEW  
35-1/4  
RETURN  
AIR  
3-3/4"  
SUPPLY AIGAS/ELEC Mod els: A 1" clear ance must be pro vided be tween any  
combustiblematerialandthesupplyairductworkforadistanceof3feet  
OUTDOOR from the unit.  
33"  
SUPPLY  
AIR  
2-3/4"  
21-1/2"  
11-1/8"  
OUTDOOR The prod ucts of com bus tion must not be al lowed to ac cu mu late within a  
(Economize
confinedspaceandrecirculate.  
UNIT BASE WITH RAILS  
(B)  
Lo cate unit so that the vent air out let hood is at least:  
(D)  
Shown separately to illustrate  
Bottom Duct openings, Power  
and Gas Piping Connection  
locations  
POWER WIRING  
ENTRY  
GAS SUPPLY  
ENTRY  
?
Three (3) feet above any forced air in let lo cated within 10 hori zon tal feet (ex-  
clud ing those in te gral to the unit).  
(A)  
CONTROL WIRING  
ENTRY  
8-1/8"  
9-3/4"  
NOTE:  
?
Four(4)feetbelow,4horizontalfeetfrom,or1footaboveanydoororgravity  
air in let into the build ing.  
46-5/8"  
For curb mounted units, refer to the curb hanger  
dimensions of the curb for the proper size of the  
supply and return air duct connections.  
9-1/4"  
12-1/2"  
10  
Unitary Products Group  
036-21359-001-B-0302  
CONDENSER  
SECTION  
DUCT COVERS - Units are shipped with the bottom  
duct openings covered. An accessory flange kit is available for  
connecting side ducts.  
EVAPORATOR  
SECTION  
GAUGE LINE  
ACCESS  
DOT PLUG  
(For pressure  
drop reading)  
For bottom duct applications:  
40-3/8"  
1
Remove the side panels from the supply and return  
air  
FILTER  
compartments to gain access to the bottom supply and  
return air duct covers.  
ACCESS  
SUPPLY  
AIR  
RETURN  
AIR  
5-1/2"  
COMPRESSOR  
ACCESS  
2
Remove and discard the bottom duct covers. (Duct  
openings are closed with sheet metal covers except  
when the unit includes a power exhaust option. The  
covering consists of a heavy black paper composition.)  
OUTDOOR  
AIR  
40-1/2"  
SUPPLY AIR  
ACCESS  
18-5/8"  
1" NPT FEMALE  
COND. DRAIN  
CONNECTION  
27-3/4"  
5-1/8"  
RETURN AIR  
ACCESS  
OUTDOOR AIR  
COMPARTMENT  
ACCESS  
3
Replace the side supply and return air compartment  
panels.  
29-5/8" (15 TON)  
39-5/8" (20 TON)  
REAR  
VIEW  
For side duct applications;  
1
Replace the side panels on the supply and return air  
compartments with the accessory flange kit panels.  
2
Connect ductwork to the duct flanges on the rear of the  
unit.  
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Unitary Products Group  
11  
036-21359-001-B-0302  
B
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F
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B
D
4 Point Loads  
6 Point Loads  
4 - POINT LOADS (LBS)  
DCE  
UNIT  
TOTAL  
2,890  
A
B
C
D
300  
487  
619  
646  
508  
DCE  
DCE  
6 - POINT LOADS (LBS)  
UNIT  
TOTAL  
2,890  
A
B
C
D
E
F
300  
415  
471  
528  
551  
492  
433  
NOTE: These weights are with economizer and 24kW electric heat.  
4 - POINT LOADS (LBS)  
DCG  
UNIT  
TOTAL  
3,130  
A
B
C
D
300  
615  
671  
962  
882  
6 - POINT LOADS (LBS)  
DCG  
UNIT  
TOTAL  
3,130  
A
B
C
D
E
F
300  
418  
438  
533  
658  
603  
510  
NOTE: These weights are with economizer, high heat and oversized motor.  
12  
Unitary Products Group  
036-21359-001-B-0302  
3.69"  
BASE RAIL  
3.56"  
Unitary Products Group  
13  
036-21359-001-B-0302  
14  
Unitary Products Group  
036-21359-001-B-0302  
7. Condensate pan shall be internally sloped and  
conform to ASHARE 62-89 self-draining standards.  
Condensate connection shall be a minimum of 1"  
I.D. female and be a ridged mount connection.  
MECHANICAL SPECIFICATIONS  
GENERAL DESCRIPTION  
Units shall be factory-assembled, single packaged,  
(DCG Electric Cooling/Gas Heat, DCE Electric Cooling/  
Optional Electric Heat), designed for outdoor mounted  
installation. Units shall have minimum EER ratings of  
8.5. They shall have built in field convertible duct con-  
nections for down discharge supply/return or horizontal  
discharge supply/return, and be available with factory  
installed options or field installed accessories.  
8. Unit shall incorporate a fixed outdoor air damper  
with an outdoor air intake opening covered with a  
bird screen and a rain hood painted to match the  
exterior of the unit.  
INDOOR (EVAPORATOR) FAN ASSEMBLY  
1. Fan shall be a belt drive assembly and include an  
adjustable-pitch motor pulley. Job site selected  
(B.H.P.) brake horse power shall not exceed the  
motors nameplate horse power rating, plus the ser-  
vice factor. Units shall be designed not to operate  
above service factor.  
The units shall be factory wired, piped, charged with R-  
22 refrigerant and factory tested prior to shipment. All  
unit wiring shall be both numbered and color coded.  
Enclosed in each unit shall be a factory test log sheet  
consisting of the unit tested pressures, temperatures  
and amps, as tested prior to shipment.  
All units shall be manufactured in a facility certified to  
ISO 9001 standards and the cooling performance shall  
be rated in accordance with DOE and ARI test proce-  
dures. Units shall be ETL & CGA listed, classified to  
ANSIZ21.47 standards, UL 1995/CAN/CSA No. 236-  
M90 conditions.  
2. Fan wheel shall be double-inlet type with forward-  
curved blades, dynamically balanced to operate  
smoothly throughout the entire range of operation.  
Airflow design shall be constant air volume.  
3. Bearings shall be sealed and permanently lubri-  
cated for longer life and no maintenance.  
UNIT CABINET  
1. Unit cabinet shall be constructed of G90 galva-  
nized steel, with exterior surfaces coated with a  
non-chalking, powered paint finish, certified at 750  
hours salt spray test per ASTM-B117 standards.  
OUTDOOR (CONDENSER) FAN ASSEMBLY  
1. The outdoor fans shall be of the direct-driven pro-  
peller type, discharge air vertically, have blades  
riveted to corrosion resistant steel spider brackets  
and shall be dynamically balanced for smooth  
operation.  
2. Indoor blower section shall be insulated with up to  
1" thick insulation, coated on the air side. Alumi-  
num foil faced insulation shall be used in the fur-  
nace compartment and be fastened with ridged  
fasteners to prevent insulation from entering the air  
stream.  
2. The 2 outdoor fan motors shall be totally enclosed  
with permanently lubricated bearings, internally  
protected against overload conditions and staged  
independently.  
3. Cabinet panels shall be “large” size, easily remov-  
able for servicing and maintenance.  
REFRIGERANT COMPONENTS  
1. Compressors:  
4. Full perimeter base rails shall be provided to  
assure reliable transit of equipment, overhead rig-  
ging and proper sealing on roof curb applications.  
A. Shall be fully hermetic type, direct drive, internally  
protected with internal high-pressure relief and over  
temperature protection. The hermetic motor shall be  
suction gas cooled and have a voltage range of + or  
- 10% of the unit nameplate voltage.  
5. Disposable 2" filters shall be furnished and be  
accessible through a removable access door,  
sealed air tight. Units filter track shall be designed  
to accommodate either 1" or 2" filters.  
B. Shall have internal spring isolation and sound muf-  
fling to minimize vibration and noise, and be exter-  
nally isolated on  
mounting.  
a
dedicated, independent  
6. Fan performance measuring ports shall be pro-  
vided on the outside of the cabinet to allow accu-  
rate air measurements of evaporator fan  
performance without removing panels or creating  
air by-pass of the coils.  
2
Coils:  
A. Evaporator and condenser coils shall have alumi-  
num plate fins mechanically bonded to seamless  
internally-enhanced copper tubes with all joints  
brazed. Special Phenolic coating shall be available  
as a factory option.  
15  
Unitary Products Group  
036-21359-001-B-0302  
B. Evaporator and Condenser coils shall be of the  
direct expansion, draw-thru, design.  
resistance and allowing minimum mixed air enter-  
ing temperature of 25 °F.  
C. Condenser coils shall be protected with factory  
installed coil guards  
3. Burners shall be of the in-shot type, constructed of  
aluminum coated steel and contain air mixture  
adjustments.  
3. Refrigerant Circuit and Refrigerant Safety Compo-  
nents shall include:  
4. All gas piping shall enter the unit cabinet at a single  
location through either the side or curb, without any  
field modifications.  
A. Balance-port thermostatic expansion valve with  
independent circuit feed system.  
B. Filter drier/strainer to eliminate any moisture or for-  
eign matter.  
5. An integrated control board shall provide timed  
control of evaporator fan functioning and burner  
ignition.  
C. Accessible service gage connections on both suc-  
tion and discharge lines to charge, evacuate, and  
measure refrigerant pressure during any necessary  
servicing or troubleshooting, without losing charge.  
6. Heating section shall be provided with the following  
minimum protection:  
D. The refrigeration system shall provide at least 15 °F  
of sub-cooling at design conditions.  
A. Primary and auxiliary high-temperature limit  
switches.  
E. All Models shall have two independent circuits..  
4. Unit Controls:  
B. Induced draft motor speed sensor.  
C. Flame roll out switch (manual reset).  
D. Flame proving controls.  
A. Unit shall be complete with self contained low-volt-  
age control circuit protected by a resetable circuit  
breaker on the 24 volt transformer side.  
7
Unit shall have two independent stages of capacity.  
B. Unit shall incorporate a lock-out circuit which pro-  
vides reset capability at the space thermostat or  
base unit, should any of the following standard  
safety devices trip and shut off compressor:  
ELECTRIC HEATING (DCE MODELS)  
1. Nickel chromium electric heating elements shall be  
provided as required by the application with 1 or 2  
stage control, as required, from 13.5 KW to 72 KW  
capacity.  
1. Loss-of-charge/Low-pressure switch.  
2. High-pressure switch.  
2. The heating section shall have a primary limit con-  
trol(s) and automatic reset to prevent the heating  
element system from operating at an excessive  
temperature.  
3. Freeze-protection thermostat, evaporator coil.  
If any of the above safety devices trip, an LED (light-  
emitting diode) indicator shall illuminate.  
3. Units with Electric Heating shall be wired for a sin-  
gle point power supply with branch circuit fusing  
(where required).  
C. Unit shall incorporate “AUTO RESET” compressor  
over temperature, over current protection.  
D. Unit shall operate with conventional thermostat  
designs and have a low voltage terminal strip for  
easy hook-up.  
UNIT OPERATING CHARACTERISTICS  
1. Unit shall be capable of starting and running at 125  
°F outdoor temperature, exceeding maximum load  
criteria of ARI Standard 210/240.  
GAS HEATING SECTION (DCG MODELS)  
1. Shall be designed with induced draft combustion  
with post purge logic and energy saving direct  
spark ignition, redundant main gas valve. Ventor  
wheel shall be constructed of stainless steel for  
corrosion resistance.  
2. The compressor, with standard controls, shall be  
capable of operation down to 25 °F outdoor tem-  
perature. Accessory low ambient kit shall be avail-  
able for operation to 0 °F.  
2. The heat exchanger shall be of the tubular type,  
constructed of T1-40 aluminized steel for corrosion  
3. Unit shall be provided with fan time delay to pre-  
vent cold air delivery before heat exchanger warms  
up. (Gas heat only)  
16  
Unitary Products Group  
036-21359-001-B-0302  
ELECTRICAL REQUIREMENTS  
space during normal operation. During economizer  
operation, a mixed-air temperature control shall  
modulate the outdoor and return air damper  
assembly to prevent the supply air temperature  
from dropping below 55°F. Changeover from com-  
pressor to economizer operation shall be provided  
by two integral electronic enthalpy controls - one  
that senses outdoor air and one that senses indoor  
air. Both enthalpy sensors supply input to the logic  
module which modulates both sets of dampers for  
maximum economizer savings. The outdoor intake  
opening shall be covered with a rain hood that  
matches the exterior of the unit. Water eliminator/  
filters shall be provided. Simultaneous economizer/  
compressor operation is also possible. Dampers  
shall fully close on power loss.  
All unit power wiring shall enter unit cabinet at a single  
factory provided location and be capable of side or bot-  
tom entry, to minimize roof penetrations and avoid unit  
field modifications. Separate side and bottom openings  
shall be provided for the control wiring.  
STANDARD LIMITED WARRANTIES  
Compressor- 5 Years  
Heat Exchanger - 10 Years  
Elect. Heat. Elem.- 5 Years  
Parts- 1 Year  
OPTIONAL OUTDOOR AIR (Shall be made available  
by either/or):  
1
ELECTRONIC ENTHALPY AUTOMATIC ECON-  
OMIZER - Outdoor and return air dampers that are  
interlocked and positioned by a fully-modulating,  
spring-return damper actuator. The maximum leak-  
age rate for the outdoor air intake dampers shall  
not exceed 2% when dampers are fully closed and  
operating against a pressure differential of 0.5  
IWG. A unit-mounted potentiometer shall be pro-  
vided to adjust the outdoor and return air damper  
assembly to take in CFM of outdoor air to meet the  
minimum ventilation requirement of the conditioned  
space during normal operation. During economizer  
operation, a mixed-air temperature control shall  
modulate the outdoor and return air damper  
assembly to prevent the supply air temperature  
from dropping below 55°F. Changeover from com-  
pressor to economizer operation shall be provided  
by an integral electronic enthalpy control that feeds  
input into the basic module. The outdoor intake  
opening shall be covered with a rain hood that  
matches the exterior of the unit. Water eliminator/  
filters shall be provided. Simultaneous economizer/  
compressor operation is also possible. Dampers  
shall fully close on power loss.  
3
MOTORIZED OUTDOOR AIR DAMPERS - Out-  
door and return air dampers that are interlocked  
and positioned by  
a
2-position, spring-return  
damper actuator. The maximum leakage rate for  
the outdoor air intake dampers shall not exceed  
2% when dampers are fully closed and operating  
against a pressure differential of 0.5 IWG. A unit-  
mounted potentiometer shall be provided to adjust  
the outdoor and return air damper assembly to take  
in the design CFM of outdoor air to meet the venti-  
lation requirements of the conditioned space during  
normal operation. Whenever the indoor fan motor  
is energized, the dampers open up to one of two  
pre-selected positions - regardless of the outdoor  
air enthalpy. Dampers return to the fully closed  
position when the indoor fan motor is de-ener-  
gized. Dampers shall fully close on power loss.  
OTHER PRE-ENGINEERED ACCESSORIES AVAIL-  
ABLE  
1. ROOF CURB - 14" high, full perimeter curb with  
wood nailer (shipped knocked-down).  
2. BAROMETRIC RELIEF DAMPER - Contains a rain  
hood, air inlet screen, exhaust damper and mount-  
ing hardware. Used to relieve internal air pressure  
through the unit during economizer operation.  
2. DUAL INPUT DIFFERENTIAL ELECTRONIC  
ENTHALPY AUTOMATIC ECONOMIZER - Out-  
door and return air dampers that are interlocked  
and positioned by a fully-modulating, spring-return  
damper actuator. The maximum leakage rate for  
the outdoor air intake dampers shall not exceed  
2% when dampers are fully closed and operating  
against a pressure differential of 0.5 IWG. A unit  
mounted potentiometer shall be provided to adjust  
the outdoor and return air damper assembly to take  
in the design CFM of outdoor air to meet the mini-  
mum ventilation requirement of the conditioned  
3. PROPANE CONVERSION KIT - Contains new ori-  
fices and gas valve parts to convert from natural to  
L.P. gas. One per unit required.  
4. HIGH ALTITUDE - NATURAL GAS - Contains orifices  
required for applications between 2000 and 6000  
feet altitude.  
Unitary Products Group  
17  
036-21359-001-B-0302  
5. HIGH ALTITUDE - PROPANE GAS - Contains orifices  
required for applications between 2000 and 6000  
feet altitude. Must be used with propane conver-  
sion kit.  
12. ANTI-RECYCLE TIMER - Assures 5-minute off-time  
between compressor cycles.  
13. LOW AMBIENT KIT - Provides unit cooling opera-  
tion down to 0°F.  
6. BURGLAR BARS - Designed to work with above  
roofcurbs, depending on unit model. Fits duct  
openings of curb supply and return air openings.  
OTHER FACTORY INSTALLED OPTIONS  
1
POWER EXHAUST OPTION - To work in conjunc-  
tion with economizers.  
7. SIDE DUCT FLANGE - Supply and return air duct  
flanges for side duct applications. Do not use on  
units with power exhaust.  
2. TECHNICOAT PHENOLIC COATED COND. COIL  
3. ELECTRONIC ENTHALPY ECONOMIZER  
8. HIGH SPEED DRIVE - Includes blower pulley and  
belt for higher CFM and/or static pressure require-  
ments.  
4. DUAL INPUT ELECTRONIC ENTHALPY ECON-  
OMIZER  
9. WOOD SKID - Allows unit to be handled with 90"  
forks.  
10. ECONOMIZER/MOTORIZED DAMPER RAIN HOOD  
(DCE/CG300 only) - Contains all hood panels and  
the hardware for assembling.  
11. THERMOSTATS - Multiple models available from  
A.C.O., M.C.O., Electronic or Electrical Mechanical  
versions.  
18  
Unitary Products Group  
036-21359-001-B-0302  
Unitary Products Group  
19  
036-21359-001-B-0302  
20  
Unitary Products Group  
036-21359-001-B-0302  
Unitary Products Group  
21  
036-21359-001-B-0302  
22  
Unitary Products Group  
036-21359-001-B-0302  
Unitary Products Group  
23  
Subject to change without notice. Printed in U.S.A.  
CD: 6-21359  
036-21359-001-B-0302  
Supersedes: 036-21359-001-A-0302  
Copyright © by Unitary Products Group 2002. All rights reserved.  
Unitary  
Products  
Group  
5005  
Norman  
OK  
73069  
York  
Drive  

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