York D2Ce D2Cg Owners Single Package Gas/elec Units & Air Conditioners User Manual
D2Ce-Users-Manual york-d2ce-users-manual-455066
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2014-08-26
User Manual: York D2Ce-D2Cg-Owners
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036-21359-001-B-0302 ® Technical Guide DESCRIPTION Sunline™ 2000 series convertible package rooftop models 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 factorymounted options and field-installed accessories to make them suitable for almost every application. 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 provide an exceptionally durable finish with the 750 hour salt spray process per ASTM-B117 test standard. SINGLE PACKAGE GAS / ELECTRIC UNITS AND SINGLE PACKAGE AIR CONDITIONERS D2CE / D2CG 300 CONSTANT VOLUME 25 NOMINAL TONS 8.5 EER SUNLINE 2000 ™ All models (including those with an economizer) are suitable for either bottom or horizontal duct connections. Models 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. All models are available with five different outdoor air damper options: • Single enthalpy economizer • Differential (dual) enthalpy economizer • Single enthalpy economizer with power exhaust • 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 All supply air blowers are equipped with a belt drive that can be adjusted to meet the exact requirements of the job. A high speed drive accessory is available for applications with a higher CFM and/or static pressure requirement. All compressors include internal pressure relief. Every refrigerant circuit includes an expansion valve, a liquid line filter-drier, a discharge line high pressure switch and a suction line with a freezestat and low pressure/ loss of charge switch. The unit control circuit includes two 75 VA transformers, two 24-volt circuit breakers and a relay board with two compressor lockout circuits, a terminal strip for thermostat wiring, plus an additional set of pin connectors to simplify the interface of additional field controls. All 208/230 and 460-volt models are ETL approved. All 208/230 and 575-volt models are CGA approved. All models include a 1-year limited warranty on the complete unit. Compressors and electric heater elements carry an additional 4-year warranty. Aluminized steel tubular heat exchangers carry an additional 9year warranty. All gas heat models are built with two heating sections for two equal stages of capacity control. Each section includes a durable heat exchanger with aluminized steel tubes, a redundant gas valve, spark ignition, power venting, an ignition module for 100% shut-off and all of the safety controls required to meet the latest ANSI standards. The gas supply piping can be routed into the heating compartment through a hole in the base pan of the unit or through a knockout in the piping panel on the front of the unit. All electric heat models are wired for a single power source and include a bank of nickel chromium elements mounted at the discharge of the supply air blower to provide a high velocity and uniform distribution of air across the heating elements. Every element is fully protected against excessive current and temperature by fuses and two thermal limit switches. The power supply wiring can be routed into the control box through a threaded pipe connection in the base pan of the unit or through a knockout in the wiring panel on the front of the unit. All internal factory wiring is color coded and numbered for ease in servicing and troubleshooting. FACTORY-INSTALLED OPTIONS ECONOMIZERS Interlocked outdoor and return air dampers are positioned by a fully modulating, spring return damper actuator capable of introducing up to 100% outdoor air with nominal 1% leakage type dampers. As the outdoor air intake dampers open, the return air dampers close. The changeover from compressor to economizer cooling is determined by one or two solid state enthalpy controls. On single enthalpy, an outdoor air sensor determines when the outdoor air is cool and dry enough to provide “free” cooling. On differential enthalpy, one sensor monitors the outdoor air while a second sensor monitors the return air. Whenever the outdoor air is cooler and drier than the return air, the unit will switch to economizer operation. For either option, the first compressor stage can provide additional cooling during economizer operation if the room thermostat calls for second stage. The dampers and controls are installed and wired at the factory. Only the accessory rain hood needs to be assembled and installed in the field. These economizer options can be used on all duct configurations. POWER EXHAUST Both the single and differential economizer options are available with power exhaust. Whenever the outdoor air intake dampers are opened for free cooling, the exhaust fan will be energized to prevent the conditioned space from being over-pressurized during economizer operation. The exhaust fan, motor and controls are installed and wired at the factory. Only the back-draft damper assembly needs to be field installed and the accessory rain hoods need to be assembled and installed in the field. The power exhaust option can only be used on bottom duct configurations. MOTORIZED OUTDOOR AIR INTAKE DAMPER Interlocked outdoor and return air dampers are controlled by a 2-position, spring return damper actuator. The outdoor damper will open to some pre-set position whenever the supply air blower is operating and will drive fully closed when the blower shuts down. The damper and controls are installed and wired at the factory. Only the accessory rain hood needs to be assembled in the field. 2 This damper option can be used on all duct configurations. Unitary Products Group 036-21359-001-B-0302 FIELD-INSTALLED ACCESSORIES ANTI-RECYCLE TIMERS SINGLE INPUT ELECTRONIC ENTHALPY ECONOMIZERS Two solid state timers prevent the compressors from short-cycling. Once a compressor is de-energized, it will remain de-energized for approximately five minutes. 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. 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. 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. 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. This enthalpy system contains one sensor that monitors the outdoor air and one sensor that monitors the return air. The logic module compares these two values and modulates the dampers providing the maximum efficiency of economizer system. The rainhood is painted to match the basic unit and must be field-assembled before installing. Power exhaust is not available as option. a field installed 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. 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. 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 supports. Unitary Products Group HIGH ALTITUDE NATURAL GAS Burner orifices and pilot orifices are provided for proper furnace operation at altitudes up to 6,000 feet. PROPANE Burner orifices, pilot orifices and gas valve parts are provided to convert a natural gas furnace to propane. HIGH ALTITUDE PROPANE 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. SIDE DUCT FLANGES One inch flanges replace the supply and return air panels on the rear of the unit to accommodate horizontal duct connections. These flanges can also be used individually for bottom supply/horizontal return or horizontal supply/bottom return. They cannot be used on units with power exhaust. 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. ECONOMIZER / POWER EXHAUST RAIN HOODS A rain hood accessory must be used on units with an economizer, a motorized damper, or a combined economizer with power exhaust option. These accessories include all the hood panels, the necessary components and hardware for field assembly. 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. LOW AMBIENT CONTROLS TO 0°F An autotransformer and a thermostat maintain stable system operation by reducing the speed of the condenser fan motor at low outdoor temperatures. The kit 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 L O N G L A S T IN G P O W D E R P A IN T F IN IS H E C O N O M IZ E R E L E C T R IC H E A T E R L O C A T IO N (O P T IO N A L E L E C T R IC /E L E C T R IC U N IT S ) H IG H E F F IC IE N C Y S C R O L L C O M P R E S S O R S C O P P E R T U B E /A L U C O N D E N S E R C O IL L O A N 2 0 G A U G E A L U M IN IZ E D S T E E L T U B U L A R H E A T E X C H A N G E R S H O O D S M IN U M W F IN V O L T A G E R E L A Y B O A R D D T E R M IA N L S T R IP E L E C T R IC A L D IS C O N N E C T M O U N T IN G L O C A T IO N ( F ie ld in s ta lle d ) K N O C K O U T F O R S ID E C O N T R O L W IR IN G E N T R Y K N O C K O U T F O R S ID E P O W E R W IR IN G 2 " D IS P O S A B L E F IL T E R S O U T D O O R A IR O P E N IN G F O R S L ID E -IN /P L U G -IN IN T E R N A L E C O N O M IZ E R T E R (F o r w ith E L E M IN A L B L S in g le P o E le c tr ic H C T R IC /E L E N T R Y S ID E O C K in t P o w e r S u p p ly e a t) E C T R IC U N IT S B O T T O M P O W E R & C O N T R O L W IR IN G E N T R Y (O P T IO N ) S ID E A N D B O T T O M S U P P L Y & R E T U R N A IR D U C T O P E N IN G S (S ID E X S ID E ) H O L E F O R B O T T O M G A S S U P P L Y E N T R Y 1 " N PNTPIT I C O N D E N S A T E D R A IN K N O C K O U T S F O R S ID E G A S S U P P L Y E N T R Y P O W E R V E N T O R M O T O R W IT H P O S T P U R G E C Y C L E B E L T -D R IV E B L O W E R M O T O R F U L L P E R IM E T E R 1 4 G U A G E B A S E R A IL S W IT H L IF T IN G H O L E S CAPACITY RATINGS - (ARI 360)* MODEL MBH EER COOLING WITH GAS HEAT IPLV MODEL COOLING WITH ELECTRIC HEAT MBH EER IPLV 8.6 D2CG300N240 290 8.5 8.3 D2CE300E018 290 8.5 D2CG300N320 290 8.5 8.3 D2CE300E036 290 8.5 8.6 D2CE300E054 287 8.5 8.2 D2CE300E072 284 8.5 8.2 COOLING ONLY D2CE300 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. MODEL GAS HEAT RATINGS MBH Input MBH Output Stage Stage Stage 1 Stage 1 1&2 1&2 D2CG300N240 300 150 240 120 D2CG300N320 400 200 320 160 Unit Size 300 *. All models are 80% Steady State Efficiency (S.S.E.). 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) 10,000 1.30 1,160 12.5 108 108 98 91 93 86 81 76 98 CFM ) ESP Blower db(A) @ 10 Ft.* 65 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- 4 Note: All gas units are two-stage heating. First stage is 50% of total. cation or guarantee requiring a dBA value or sound data in any other form than sound power level ratings. Unitary Products Group 036-21359-001-B-0302 COOL ING CAPACI TIES- 25 TON (DCE / DCG300) Air On Evaporator Coil Total Power 1 Input2 WB Cap. CFM KW ?F MBH 86 72 371 27.1 277 67 340 26.1 335 12,000 62 329 25.5 329 57 329 25.5 329 72 365 27.0 260 67 336 25.9 317 11,000 62 324 25.3 324 57 324 25.3 324 72 359 26.8 244 67 332 25.7 298 10,000 62 318 25.2 318 57 318 25.1 318 72 354 26.6 229 67 326 25.5 280 9,000 62 314 25.0 314 57 314 25.0 314 72 349 26.4 215 67 321 25.3 262 8,000 62 310 24.8 310 57 310 24.8 310 72 318 25.2 186 67 290 24.0 226 6,000 62 282 23.7 277 57 282 23.7 281 Air On Evaporator Coil Tem pera ture of Air on Con denser Coil 85?F Sen si ble Ca pac ity1 , MBH Total Power Cap.1 Input2 En ter ing Dry Bulb, ?F KW 83 80 77 74 71 68 MBH 86 240 203 167 130 354 28.8 268 299 262 226 189 152 116 325 27.7 324 329 329 293 256 219 183 315 27.1 315 329 329 292 256 219 183 314 27.1 314 226 193 159 125 348 28.6 257 283 249 216 182 148 114 321 27.5 312 324 313 279 245 212 178 309 26.9 309 324 315 281 247 214 180 309 26.9 309 213 182 151 120 342 28.5 245 268 237 206 175 144 113 317 27.4 301 318 296 265 235 204 173 304 26.8 304 318 301 270 239 208 177 304 26.7 304 201 173 145 117 338 28.2 228 252 224 196 168 141 113 312 27.1 279 306 282 254 226 198 170 300 26.5 300 308 286 258 230 203 175 300 26.5 300 190 165 140 115 334 28.0 211 237 212 187 162 137 112 307 26.9 257 293 268 243 218 193 168 297 26.3 297 297 272 247 222 197 172 297 26.3 297 167 148 129 110 304 26.8 177 206 187 168 149 130 111 277 25.5 213 258 240 221 201 192 163 270 25.2 262 262 243 224 205 186 167 270 25.2 266 Total Power 1 2 WB Cap. Input CFM KW ?F MBH 86 72 337 30.7 264 67 310 29.5 309 12,000 62 300 28.8 300 57 299 28.8 299 72 331 30.5 254 67 306 29.3 302 11,000 62 295 28.5 295 57 294 28.5 294 72 326 30.2 244 67 302 29.0 294 10,000 62 290 28.3 290 57 290 28.2 290 72 322 30.0 228 67 297 28.8 276 9,000 62 286 28.1 286 57 286 28.1 286 72 319 29.8 212 67 293 28.6 259 8,000 62 283 28.0 283 57 283 28.0 283 72 290 28.3 180 67 264 26.9 224 6,000 62 258 26.6 258 57 258 26.6 258 95?F Sen si ble Ca pac ity 1, MBH En ter ing Dry Bulb, ?F 83 80 77 74 71 231 195 158 122 288 251 214 178 141 315 315 278 241 205 314 314 278 241 205 223 189 155 122 279 245 211 178 144 309 307 273 239 206 309 309 275 242 208 214 184 153 122 270 239 208 177 146 304 299 268 237 207 304 304 273 242 211 200 172 144 116 251 223 195 167 139 295 280 253 225 197 297 285 257 229 201 186 161 136 111 232 207 182 157 132 287 262 237 212 187 291 266 241 216 191 158 138 119 100 194 175 156 137 118 243 225 206 187 167 247 228 209 190 171 Tem pera ture of Air on Con denser Coil 105?F Sen si ble Ca pac ity1 , MBH Total Power Cap.1 Input2 En ter ing Dry Bulb, ?F KW 83 80 77 74 71 68 MBH 86 228 191 155 118 320 32.6 261 283 246 210 173 137 100 294 31.3 294 300 300 263 226 190 153 285 30.5 285 299 299 263 226 190 153 285 30.5 285 221 187 153 119 315 32.3 252 276 242 208 174 141 107 291 31.0 291 295 294 260 226 192 159 280 30.3 280 294 294 261 227 193 160 280 30.3 280 213 183 152 121 310 32.1 243 268 237 206 176 145 114 287 30.8 287 290 287 256 226 195 164 276 30.0 276 290 290 259 228 197 166 275 29.9 275 200 172 144 116 306 31.8 228 251 223 195 167 139 111 283 30.5 274 284 271 243 215 187 159 272 29.8 272 285 273 245 217 189 161 272 29.7 272 187 162 137 112 303 31.6 213 234 209 184 159 134 109 278 30.3 260 278 255 230 205 180 155 269 29.6 269 280 257 232 207 182 157 269 29.6 269 161 141 122 103 276 30.0 183 200 181 162 142 123 104 251 28.5 222 241 223 204 184 165 146 245 28.2 245 242 224 205 186 167 148 245 28.2 245 68 105 168 168 110 172 174 115 176 180 111 169 173 107 162 166 99 148 152 115?F Sen si ble Ca pac ity1 , MBH En ter ing Dry Bulb, ?F 83 80 77 74 71 224 188 151 114 278 242 205 169 132 285 285 248 212 175 285 285 248 211 175 218 185 151 117 273 239 205 171 138 280 280 246 213 179 280 280 246 213 179 212 181 151 120 267 236 205 174 143 276 276 245 214 183 275 275 244 214 183 200 172 144 116 251 223 195 167 139 272 262 234 206 178 272 261 234 206 178 188 163 138 113 235 210 185 160 135 269 248 223 198 173 269 248 223 198 173 164 145 125 106 203 194 165 146 127 239 220 201 182 163 240 221 202 182 163 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. Nomi nal Rat ing Unitary Products Group All Sen si ble Ca pac ity 5 68 95 138 138 104 145 145 112 152 152 111 150 150 110 148 148 108 144 144 036-21359-001-B-0302 BLOWER PER FORM ANCE- 25 TON (DCE/DCG300) DCE300 - BOT TOM DUCT CON NEC TIONS (COOL ING AP PLI CA TIONS) 7500 CFM OUTPUT INPUT (bhp) (kW) 8750 CFM OUTPUT INPUT (bhp) (kW) 10000 CFM OUTPUT INPUT (bhp) (kW) 11250 CFM OUTPUT INPUT (bhp) (kW) 12500 CFM OUTPUT INPUT (bhp) (kW) BLOWER SPEED (rpm) PULLEY TURNS OPEN: ESP (iwg) 975 1005 1040 1070 1100 1135 1165 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 STANDARD DRIVE: 6.0 0.5 8.8 6.3 0.7 9.2 6.7 0.9 9.7 7.0 1.1 10.2 7.3 1.3 10.6 7.6 1.6 11.1 8.0 1.8 11.6 7.2 7.6 8.0 8.3 8.7 9.1 9.5 0.1 0.3 0.6 0.8 1.0 1.3 10.9 11.4 11.9 12.4 13.0 13.5 8.9 9.4 9.8 10.2 10.6 11.0 0.2 0.4 0.7 14.3 14.9 15.5 11.7 12.2 12.7 1140 1180 1215 1255 1290 1330 1365 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 8.6 9.1 9.5 10.0 10.5 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 10.4 11.0 11.5 12.0 12.6 ACCESSORY DRIVE: 7.7 1.6 11.2 8.1 1.9 11.8 8.5 2.2 12.3 9.0 2.5 12.9 9.4 2.7 13.5 9.9 3.0 14.1 10.3 3.3 14.7 9.2 9.7 10.1 10.6 11.1 11.6 12.1 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 - ESP (iwg) ESP (iwg) ESP (iwg) ESP (iwg) NOTES: 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 - BOT TOM DUCT CON NEC TIONS (COOL ING AP PLI CA TIONS) 7500 CFM OUTPUT INPUT (bhp) (kW) BLOWER SPEED (rpm) PULLEY TURNS OPEN: ESP (iwg) 975 1005 1040 1070 1100 1135 1165 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 1140 1180 1215 1255 1290 1330 1365 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 ESP (iwg) 8750 CFM 10000 CFM OUTPUT INPUT ESP OUTPUT (bhp) (kW) (iwg) (bhp) STANDARD DRIVE: 7.3 6.0 7.7 6.3 8.1 6.7 0.2 9.7 8.5 7.0 0.4 10.2 8.9 7.3 0.6 10.6 9.3 7.6 0.8 11.1 9.7 8.0 1.0 11.6 ACCESSORY DRIVE: 9.4 7.7 0.9 11.2 9.9 8.1 1.2 11.8 10.4 8.5 1.4 12.3 11.0 9.0 1.7 12.9 11.5 9.4 2.0 13.5 12.0 9.9 2.3 14.1 12.6 10.3 2.6 14.7 11250 CFM OUTPUT INPUT (bhp) (kW) ESP (iwg) 12500 CFM OUTPUT INPUT (bhp) (kW) INPUT (kW) ESP (iwg) 8.0 8.3 8.7 9.1 9.5 0.2 13.5 11.0 - - - 9.2 9.7 10.1 10.6 11.1 11.6 12.1 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 - - - NOTES: 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 Elec tric Heat MODEL D2CE POWER SUPPLY 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 1 ELECTRIC HEATER OPTION MODEL kW(1) STAGES AMPS 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 NOMI NAL VOLT AGE 208 240 480 600 VOLTAGE 208 230 460 575 MINIMUM CIRCUIT AMPACITY MAXIMUM OVERCURRENT DEVICE (1) (AMPS) 139.5 142.1 189.0 198.4 139.5 156.5 178.2 221.5 68.3 78.3 89.1 110.7 56.1 62.6 71.2 88.5 (AMPS) 175 175 200 225 175 175 200 250 80 80 100 125 70 70 80 100 KW CAP. MUL TI PLIER 1.00 0.92 0.92 0.92 PHYSICAL DATA BASIC UNITS DCE/DCG/DCV MODELS 300 18 x 15 EVAPORATOR CEN TRIFU GAL BLOWER (Dia. x Wd. in.) BLOWER FAN MO TOR HP 15 ROWS DEEP 4 EVAPORATOR FINS PER INCH 13.5 COIL FACE AREA (Sq. Ft.) 25.0 30 CONDENSER PRO PEL LER DIA. (in.) (Each) FAN FAN MO TOR HP (Each) 1 (Two Per Unit) NOM. CFM TO TAL (Each) 7200 ROWS DEEP 3 CONDENSER FINS PER INCH 15 COIL FACE AREA (Sq. Ft.) 43.3 COMPRESSOR 12.5 TON, SCROLL, HER METIC, 2 (Qty. Per Unit) TAN DEM (2 STAGE, 50% ea.) QUAN TITY PER UNIT (16" X 20" X 2") 2 QUAN TITY PER UNIT (16" X 25" X 2") 4 AIR FILTERS QUAN TITY PER UNIT (14" X 20" X 2") 3 TO TAL FACE AREA (sq. ft.) 21.4 REFRIGERANT SYS TEM NO. 1 20/8 22 (lbs./oz.) CHARGE SYS TEM NO. 2 20/0 Unitary Products Group OPERATING WEIGHTS MODEL SIZE (MBH) DCE (Cool ing only) DCV (Cool ing only) Ba sic Unit DCG (Gas / Elec tric) DCV (Gas / Elec tric) Options N240 N320 N240 N320 Economizer Econo mizer with Power Ex haust Mo tor ized Damper Elec tric Heater (Elec/Elec only) 300 2730 2795 2930 2970 2995 3035 160 245 18 KW 36 KW 54 KW 72 KW Roof Curb Ba ro met ric Damper Econo mizer/Mo tor ized Damper Ac ces so- Rain Hood ries Econo mizer/Power Ex haust Rain Hood Wood Skid 150 25 30 35 40 185 45 55 90 220 7 036-21359-001-B-0302 BLOWER MO TOR AND DRIVE DATA MOTOR 1 BLOWER MODEL SIZE DRIVE RANGE (RPM) HP FRAME EFF. (%) Stan975/1165 dard 25 TON High 15 Speed 1140/1365 Access 254T 91 AD JUST ABLE MO TOR PUL LEY BELT (NOTCHED) FIXED BLOWER PUL LEY OUTSIDE PITCH BORE DESIG- OUTSIDE PITCH BORE DESIG- PITCH DIA. DIA. DIA. LENGTH QTY. (IN.) NATION (IN.) NATION DIA. (IN.) (IN.) (IN.) (IN.) (IN.) DESIGNATION 1LVP58B70 A 6.27.4 7.5 1B5V110 11.3 11.1 1-7/16 5VX860 86.0 1 1B5V94 9.7 9.5 84.0 1 1 5/8 1-7/16 5VX840 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 RESIS TANCES* AIRFLOW (CFM) 7500 8750 10000 11250 12500 ESP ESP ESP ESP ESP (IWG) (IWG) (IWG) (IWG) (IWG) DEDUCTIONS: (SUBTRACT VALUES BELOW FROM UNIT'S AVAILABLE ESP) ALLOWANCE FOR WET COIL: 0.10 0.10 0.10 0.10 0.10 ECONOMIZER (RETURN DUCT): 0.06 0.09 0.11 0.14 0.18 18kW ELECTRIC HEAT: 0.31 0.43 0.56 0.71 0.87 36kW ELECTRIC HEAT: 0.38 0.52 0.68 0.87 1.07 54kW ELECTRIC HEAT: 0.62 0.84 1.10 1.39 1.72 72kW ELECTRIC HEAT: 0.68 0.93 1.21 1.54 1.90 ADDITIONS: (ADD VALUES BELOW TO UNIT'S AVAILABLE ESP) HORIZONTAL (SIDE) SUPPLY DUCT: 0.31 0.26 0.27 0.31 0.41 HORIZONTAL (SIDE) RETURN DUCT: 0.05 0.05 0.05 0.05 0.05 DESCRIPTION POWER EX HAUST PER FORM ANCE CFM KW STATIC RE SIS TANCE OF RE TURN DUCT WORK, IWG 0.3 0.4 0.5 CFM KW CFM KW CFM KW HIGH* 5250 0.83 4500 0.85 4200 0.88 3750 0.93 3000 0.99 MEDIUM 4900 0.77 3900 0.79 3500 0.82 2900 0.85 - - LOW 4400 0.72 3700 0.74 3000 0.78 - - - - MOTOR SPEED 0.2 0.6 CFM KW *Fac tory Set ting Power Ex haust mo tor is a 3/4 HP, PSC type with sleeve bear ings, a 48 frame and in her ent protection. ELEC TRI CAL DATA- Cool ing Only Units and Units With Gas Heat ELECTRICAL DATA - Cooling Only Units & Units With Gas Heat MODEL NO. POWER SUPPLY D2CE300 208/230-3-60 & D2CG300 460-3-60 575-3-60 COMPRESSORS COND. FAN (QTY. 2) (#1 & #2) RLA (ea.) 41.4 20.0 16.4 LRA (ea.) 312 150 108 HP (ea.) 1 1 1 FLA (ea.) 4.2 2.1 2.0 SUPPLY AIR BLOWER MOTOR HP RLA 15 15 15 38.6 19.3 15.4 MINIMUM MAXIMUM CIRCUIT OVERCURRENT AMPACITY (AMPS) 139.5 68.3 56.1 DEVICE (1) (AMPS) 175 80 70 POWER SUP PLY VOLTAGE LIMITATIONS** 208/230-3-60 460-3-60 575-3-60 MIN. 187 414 518 VOLTAGE MAX. 253 506 630 **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 C O N T R O L W IR IN G O N L Y (2 4 V O L T T H E R M O S T A T ) C O O L IN G C O O L IN G T H E R M O S T A T T E R M IN A L S 1 T H E R M O S T A T T E R M IN A L S R Y 1 Y 2 R H R Y 1 W 1 W 2 G B X A 1 A 2 Y 2 G 1 2 / H E A T IN G U N IT T E R M IN A L B L O C K 1 T B 2 1 R Y 1 Y 2 / H E A T IN G A D D J U M P E R Y 2 W 1 2 4 V O L T T R A N S F O R M E R W 2 3 2 4 V O L T T R A N S F O R M E R G A D D J U M P E R (E L E C T R O N IC T H E R M O S T A T ) U N IT T E R M IN A L B L O C K 1 T B 2 1 2 4 V o lt T h e r m o s ( w ith s u b b a s e 2 T 2 T e r m in a l b lo c k 1 o f th e u n it c o n tr o 3 S e c o n d s t a g e h e e le c tr ic h e a te r . R Y 1 Y 2 R C R H Y 1 Y 2 W 1 W 2 G B L E D 1 L E D 2 C O M A 1 A 2 T T 4 4 N O T U S E D ta t 2 T H 0 4 7 B 0 4 7 0 0 2 2 T B - lo c a te l b o x . a tin g is n o 0 1 0 2 4 o r 2 T H 0 4 7 0 1 5 2 4 4 o r 2 T B 0 4 7 0 0 3 2 4 ). d o n r e la y b o a r d in 2 4 - v o lt s e c tio n t r e q u ir e d o n u n its w ith a s in g le s ta g e P O W E R W IR IN G W 1 W 2 G B X A 1 A 2 3 W 1 W 2 G B X A 1 A 2 Y 1 1 T H E R M O S T A T T E R M IN A L S U N IT T E R M IN A L B L O C K 1 T B 2 R C 2 4 V o lt T h e r m o s ta t 2 T H 0 4 7 0 1 2 2 4 . T e r m in a l b lo c k 1 T B - lo c a te d o n r e la y b o a r d in 2 4 - v o lt s e c tio n o f th e u n it c o n tr o l b o x . C O O L IN G (2 4 V O L T T H E R M O S T A T ) 2 4 V O L T T R A N S F O R M E R L IN T E B L IN C O E V O R M IN O C K U N IT N T R L T A G E A L 2 T B O L B O X G R O U N D L U G LLL 231 O R e fe r to th e E L E C T R IC A L D A T A ta b le s to s iz e th e p o w e r w ir in g , th e fu s e s a n d th e d is c o n n e c t s w itc h . T O R E M O T E S E N S O R 2 T H 0 4 7 0 2 2 2 4 IF U S E D E le c tr o n T e r m in a 3 S e c o n d 4 T e r m in a w h e n th 1 2 ic p r o l b lo c s ta g e ls A 1 e th e r g ra m k 1 T h e a a n d m o s m a b le T h e B - lo c a te d tin g is n o t r A 2 p r o v id e ta t s w itc h e s rm o n e q a to o s ta r e la u ir e d r e la y th e t 2 E T y b o a o n u o u tp s e t-b 0 4 7 r d in n its u t to a c k F a n s w itc h m u s t b e in " O N " p o s itio n fo r m in im u m Unitary Products Group 0 0 2 2 4 2 4 -v o w ith a c lo s e p o s itio ( in lt s s in th e n . c lu d e e c tio g le s o u td s s n o ta g o o u b b a f th e e e le r e c o s e u n c tr n o ). it c o n tr o l b o x . ic h e a te r . m iz e r d a m p e r s v e n tila tio n d u r in g h e a te r o p e r a tio n . 9 036-21359-001-B-0302 ECONOMIZER / MOTORIZED DAMPER, FIXED OUTDOOR INTAKE AIR AND POWER EXHAUST RAIN HOODS (See detail "Y") COMPRESSOR ACCESS (See detail "X") FIELD-SUPPLIED DISCONNECT SWITCH LOCATION BLOWER ACCESS BLOWER MOTOR ACCESS All dimensions are in inches. They are subject to change without notice. Certified dimensions will be provided upon request. UTILITIES ENTRY DATA OPTIONAL COIL GUARD KIT BLOWER COMPARTMENT ACCESS (Auxiliary) DOT PLUG (For pressure Drop Reading) C OPENING SIZE (DIA.) 1-1/8" KO 3/4" NPS (Fem.) 3-5/8" KO 3" NPS (Fem.) 2-3/8" KO D 1-11/16" Hole HOLE 48-5/8" (15TON) 52-5/8" (20TON) A CONDENSER COILS B 21" 5" 125-1/4" (15 TON) 136-1/4" (20 TON) FRONT VIEW 9-3/4" ELECTRIC HEAT ACCESS 92" 1 (A) CONTROL WIRING ENTRY 5-7/8" CONTROL BOX ACCESS 11-1/2" 35" 24-1/4" (15 TON) 36-1/4" (20 TON) USED FOR Control Front Wiring Bottom Front Power Wiring Bottom Gas Pip ing (Front)1 Gas Pip ing (Bottom)1,2 1" pip ing MPT re quired 2 Open ing in the bot tom of the unit can be lo cated by the slice in the in su la tion. (B) POWER WIRING ENTRY BOTTOM SUPPLY AND RETURN AIR OPENINGS (See Note) RETURN AIR RETURN AIR SUPPLY AIR 3-3/4" 33" SUPPLY AIR 2-3/4" OUTDOOR AIR 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" 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. BLOWER ACCESS BLOWER MOTOR ACCESS 9-1/4" 12-1/2" 9-3/4" ECONOMIZER / MOTORIZED DAMPER, FIXED OUTDOOR INTAKE AIR AND POWER EXHAUST RAIN HOODS (See detail "Y") COMPRESSOR ACCESS (See detail "X") FIELD-SUPPLIED DISCONNECT SWITCH LOCATION BLOWER COMPARTMENT ACCESS (Auxiliary) CLEARANCES Front Back OPTIONAL COIL GUARD KIT DOT PLUG (For pressure Drop Reading) Left Side (Fil ter Ac cess) 52-5/8 Right Side (Cond. Coil) Be low Unit1 GAS HEAT ACCESS CONDENSER COILS VENT AIR OUTLET HOODS 21" Above Unit2 5" COMBUSTION AIR INLET HOOD 7-1/8" 136-1/4 6-3/8" 9-3/4" (C) GAS SUPPLY ENTRY 92" 5-7/8" (A) CONTROL WIRING ENTRY 46-5/8" CONTROL BOX ACCESS FRONT VIEW 11-1/2" 35" BOTTOM SUPPLY AND RETURN AIR OPENINGS (See Note) 35-1/4 RETURN AIR (B) POWER WIRING ENTRY 1U nits (ap pli ca ble in U.S.A. only) may be in stalled on com bus ti ble floors made from wood or class A, B or C roof cov er ing ma te rial. 2 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. NOTE: ELEC/ELEC Mod els: Units and duct work are ap proved for zero clear ance to com bus ti ble ma te ri als when equipped with elec tric heat ers. RETURN AIR 3-3/4" 33" SUPPLY AIR 2-3/4" 36" 24" (Less Econo mizer) 49" (With Econo mizer) 24" (Less Econo mizer) 36" (With Econo mizer) 36" 20" 72" With 36" Maxi mum Hori zon tal Over hang (For Con denser Air Dis charge) SUPPLY AIRGAS/ELEC Mod els: A 1" clear ance must be pro vided be tween any com bus ti ble ma te rial and the sup ply air duct work for a dis tance of 3 feet from the unit. OUTDOOR AIR 21-1/2" 11-1/8" OUTDOOR AIR The prod ucts of com bus tion must not be al lowed to ac cu mu late within a (Economizer) con fined space and re cir cu late. UNIT BASE WITH RAILS Shown separately to illustrate Bottom Duct openings, Power and Gas Piping Connection locations (B) POWER WIRING ENTRY (D) GAS SUPPLY ENTRY 8-1/8" 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. 10 46-5/8" 9-1/4" 12-1/2" 9-3/4" (A) CONTROL WIRING ENTRY Lo cate unit so that the vent air out let hood is at least: ? Three (3) feet above any forced air in let lo cated within 10 hori zon tal feet (exclud ing those in te gral to the unit). ? Four (4) feet be low, 4 hori zon tal feet from, or 1 foot above any door or grav ity air in let into the build ing. 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. For bottom duct applications: 1 Remove the side panels from the supply and return air compartments to gain access to the bottom supply and return air duct covers. EVAPORATOR SECTION GAUGE LINE ACCESS DOT PLUG (For pressure drop reading) 40-3/8" FILTER ACCESS SUPPLY AIR RETURN AIR 5-1/2" COMPRESSOR ACCESS SUPPLY AIR ACCESS OUTDOOR AIR 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.) 3 Replace the side supply and return air compartment panels. 40-1/2" 18-5/8" 1" NPT FEMALE COND. DRAIN CONNECTION 27-3/4" RETURN AIR ACCESS 5-1/8" REAR VIEW OUTDOOR AIR COMPARTMENT ACCESS 29-5/8" (15 TON) 39-5/8" (20 TON) For side duct applications; 1 Replace the side panels on the supply and return air compartments with the accessory flange kit panels. 2 S U P P L Y A IR C O M P A R T M E N T P O W E R E X H A U S T R A IN H O O D ( o n R e tu r n A ir C o m p a r tm e n t) E C O M O T D A M R A IN (o n O N O M IZ E R O R IZ E D P E R H O O D u td o o r A ir C o m p a r tm e n t) Connect ductwork to the duct flanges on the rear of unit. E C O N O M IZ E R / M O T O R IZ E D D A M P E R A N D P O W E R E X H A U S T R A IN H O O D S F IX E O U T IN T A ( lo c a R e tu C o m 3 4 -1 /4 " D D O O R A IR K E H O O D te d o n r n A ir p a rtm e n t) 1 " C O N D E N S T A T E D R A IN (M u s t b e tra p p e d ) 1 6 -1 /8 " 5 " 3 6 " 6 6 -1 /2 " R E A R V IE W Unitary Products Group 2 " 9 2 " 3 6 -1 /4 " D E T A IL "Y " U N IT W IT H R A IN H O O D S L H V IE W 11 the 036-21359-001-B-0302 B E F C A D A F R O N T B D 4 Point Loads DCE UNIT 300 F R O N T C 6 Point Loads 4 - POINT LOADS (LBS) A B 487 619 TOTAL 2,890 C 646 D 508 DCE DCE UNIT 300 TOTAL 2,890 6 - POINT LOADS (LBS) A B 415 471 C 528 D 551 E 492 F 433 NOTE: These weights are with economizer and 24kW electric heat. DCG UNIT 300 DCG UNIT 300 4 - POINT LOADS (LBS) TOTAL 3,130 TOTAL 3,130 A 615 6 - POINT LOADS (LBS) A B 418 438 B 671 C 533 D 658 C 962 E 603 NOTE: These weights are with economizer, high heat and oversized motor. 12 Unitary Products Group D 882 F 510 036-21359-001-B-0302 3.69" 3.56" Unitary Products Group BASE RAIL 13 036-21359-001-B-0302 14 Unitary Products Group 036-21359-001-B-0302 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 connections for down discharge supply/return or horizontal discharge supply/return, and be available with factory installed options or field installed accessories. 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. 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 The units shall be factory wired, piped, charged with R22 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. 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 service factor. Units shall be designed not to operate above service factor. 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 procedures. Units shall be ETL & CGA listed, classified to ANSIZ21.47 standards, UL 1995/CAN/CSA No. 236M90 conditions. 2. Fan wheel shall be double-inlet type with forwardcurved blades, dynamically balanced to operate smoothly throughout the entire range of operation. Airflow design shall be constant air volume. UNIT CABINET 1. Unit cabinet shall be constructed of G90 galvanized steel, with exterior surfaces coated with a non-chalking, powered paint finish, certified at 750 hours salt spray test per ASTM-B117 standards. 2. Indoor blower section shall be insulated with up to 1" thick insulation, coated on the air side. Aluminum foil faced insulation shall be used in the furnace compartment and be fastened with ridged fasteners to prevent insulation from entering the air stream. 3. Cabinet panels shall be “large” size, easily removable for servicing and maintenance. 4. Full perimeter base rails shall be provided to assure reliable transit of equipment, overhead rigging and proper sealing on roof curb applications. 3. Bearings shall be sealed and permanently lubricated for longer life and no maintenance. OUTDOOR (CONDENSER) FAN ASSEMBLY 1. The outdoor fans shall be of the direct-driven propeller type, discharge air vertically, have blades riveted to corrosion resistant steel spider brackets and shall be dynamically balanced for smooth operation. 2. The 2 outdoor fan motors shall be totally enclosed with permanently lubricated bearings, internally protected against overload conditions and staged independently. REFRIGERANT COMPONENTS 1. Compressors: 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. 6. Fan performance measuring ports shall be provided on the outside of the cabinet to allow accurate air measurements of evaporator fan performance without removing panels or creating air by-pass of the coils. Unitary Products Group 2 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. B. Shall have internal spring isolation and sound muffling to minimize vibration and noise, and be externally isolated on a dedicated, independent mounting. Coils: A. Evaporator and condenser coils shall have aluminum plate fins mechanically bonded to seamless internally-enhanced copper tubes with all joints brazed. Special Phenolic coating shall be available as a factory option. 15 036-21359-001-B-0302 B. Evaporator and Condenser coils shall be of the direct expansion, draw-thru, design. C. Condenser coils shall be protected with factory installed coil guards 3. Refrigerant Circuit and Refrigerant Safety Components shall include: A. Balance-port thermostatic expansion valve with independent circuit feed system. B. Filter drier/strainer to eliminate any moisture or foreign matter. C. Accessible service gage connections on both suction and discharge lines to charge, evacuate, and measure refrigerant pressure during any necessary servicing or troubleshooting, without losing charge. D. E. resistance and allowing minimum mixed air entering temperature of 25 °F. 3. Burners shall be of the in-shot type, constructed of aluminum coated steel and contain air mixture adjustments. 4. All gas piping shall enter the unit cabinet at a single location through either the side or curb, without any field modifications. 5. An integrated control board shall provide timed control of evaporator fan functioning and burner ignition. 6. Heating section shall be provided with the following minimum protection: The refrigeration system shall provide at least 15 °F of sub-cooling at design conditions. B. Unit shall be complete with self contained low-voltage control circuit protected by a resetable circuit breaker on the 24 volt transformer side. Unit shall incorporate a lock-out circuit which provides reset capability at the space thermostat or base unit, should any of the following standard safety devices trip and shut off compressor: 1. Loss-of-charge/Low-pressure switch. 2. High-pressure switch. 3. Freeze-protection thermostat, evaporator coil. If any of the above safety devices trip, an LED (lightemitting diode) indicator shall illuminate. 7 auxiliary high-temperature B. Induced draft motor speed sensor. C. Flame roll out switch (manual reset). D. Flame proving controls. limit Unit shall have two independent stages of capacity. 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. 2. The heating section shall have a primary limit control(s) and automatic reset to prevent the heating element system from operating at an excessive temperature. C. Unit shall incorporate “AUTO RESET” compressor over temperature, over current protection. 3. Units with Electric Heating shall be wired for a single point power supply with branch circuit fusing (where required). D. Unit shall operate with conventional thermostat designs and have a low voltage terminal strip for easy hook-up. UNIT OPERATING CHARACTERISTICS 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 heat exchanger shall be of the tubular type, constructed of T1-40 aluminized steel for corrosion 16 Primary and switches. All Models shall have two independent circuits.. 4. Unit Controls: A. A. 1. Unit shall be capable of starting and running at 125 °F outdoor temperature, exceeding maximum load criteria of ARI Standard 210/240. 2. The compressor, with standard controls, shall be capable of operation down to 25 °F outdoor temperature. Accessory low ambient kit shall be available for operation to 0 °F. 3. Unit shall be provided with fan time delay to prevent cold air delivery before heat exchanger warms up. (Gas heat only) Unitary Products Group 036-21359-001-B-0302 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 compressor 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. ELECTRICAL REQUIREMENTS All unit power wiring shall enter unit cabinet at a single factory provided location and be capable of side or bottom 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 ECONOMIZER - Outdoor 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 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 compressor 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. 2. DUAL INPUT DIFFERENTIAL ELECTRONIC ENTHALPY AUTOMATIC ECONOMIZER - Outdoor 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 minimum ventilation requirement of the conditioned Unitary Products Group 3 MOTORIZED OUTDOOR AIR DAMPERS - Outdoor 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 unitmounted 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 ventilation 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-energized. Dampers shall fully close on power loss. OTHER PRE-ENGINEERED ACCESSORIES AVAILABLE 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 mounting hardware. Used to relieve internal air pressure through the unit during economizer operation. 3. PROPANE CONVERSION KIT - Contains new orifices 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. 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 conversion kit. 6. BURGLAR BARS - Designed to work with above roofcurbs, depending on unit model. Fits duct openings of curb supply and return air openings. 7. SIDE DUCT FLANGE - Supply and return air duct flanges for side duct applications. Do not use on units with power exhaust. 8. HIGH SPEED DRIVE - Includes blower pulley and belt for higher CFM and/or static pressure requirements. 12. ANTI-RECYCLE TIMER - Assures 5-minute off-time between compressor cycles. 13. LOW AMBIENT KIT - Provides unit cooling operation down to 0°F. OTHER FACTORY INSTALLED OPTIONS 1 POWER EXHAUST OPTION - To work in conjunction with economizers. 2. TECHNICOAT PHENOLIC COATED COND. COIL 3. ELECTRONIC ENTHALPY ECONOMIZER 4. DUAL INPUT ELECTRONIC ENTHALPY ECONOMIZER 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 Copyright © by Unitary Products Group 2002. All rights reserved. Unitary Products Group 5005 York Drive 036-21359-001-B-0302 Supersedes: 036-21359-001-A-0302 Norman OK 73069
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File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.4 Linearized : No Create Date : 2002:03:20 14:26:00Z Modify Date : 2002:04:30 11:55:42-04:00 Page Count : 24 Page Mode : UseThumbs Creation Date : 2002:03:20 14:26:00Z Producer : Acrobat Distiller 4.0 for Windows Mod Date : 2002:04:30 11:55:42-04:00 Metadata Date : 2002:04:30 11:55:42-04:00 Title : single package gas/elec units & air conditioners d2ce-d2cgEXIF Metadata provided by EXIF.tools