background image

20 

Table 7-5 Refrigerant charge for H/P system

55 60 65 70 75 80  85 90 95 100 105 

110 115 

165 
161 
157 
153 
149 
145 
141 
137 
133 
129 
125 
121 
117 
113 
109 
105 

30 

Cooling Charge Chart/Tableau De Charge de Refroidissement 

Cooling Mode 

Outdoor Ambient Temperature(

o

F)/Temperature Amdiante Exterieure(en 

o

F) 

Mode 

De Refroidissement 

High Pressure Service Port(psig)/Vanne Détecté de Pression Haute(en psig) 

Low Pressure Service Port(psig) 

 

Vanne Détectée de Pression Basse(en psig) 

Table 7-3 Refrigerant charge for H/P system

Table 7-4 Refrigerant charge for H/P system

60 62 64 66 68  70 72 74 76 78 80  82 

135 
128 
121 
114 
107 
100 

93 
86 
79 
72 
65 
58 
51 
44 
37 
30 

Low Pressure Service Port(psig) 

  

Vanne Détectée de Pression Basse(en psig) 

24 

Heating Charge Chart/Tableau De Charge de Chauffage 

Heating Mode 

Indoor Dry Bulb Temperature(

o

F)/Temperature Interieur au Themometre sec(en 

o

F) 

Mode 

De Chauffage 

High Pressure Service Port(psig)/Vanne Détecté de Pression Haute(en psig) 

55 60 65 70 75 80  85 90 95 100 105 

110 115 

165 
161 
157 
153 
149 
145 
141 
137 
133 
129 
125 
121 
117 
113 
109 
105 

24 

Cooling Charge Chart/Tableau De Charge de Refroidissement 

Cooling Mode 

Outdoor Ambient Temperature(

o

F)/Temperature Amdiante Exterieure(en 

o

F) 

Mode 

De Refroidissement 

High Pressure Service Port (psig)/Vanne Détecté de Pression Haute(en psig) 

Low Pressure Service Port(psig) 

 

Vanne Détectée de Pression Basse(en psig) 

281

303

324

346

365

383

402

425

449

472

495

279

301

322

344

363

381

400

423

447

470

493

277

299

320

342

361

379

398

421

445

468

491

253

275

297

318

340

359

377

396

419

443

466

489

251

273

295

316

338

357

375

394

417

441

464

487

249

271

293

314

336

355

373

392

415

439

462

485

226

247

269

291

312

334

353

371

390

413

437

460

483

224

245

267

289

310

332

351

369

388

411

435

458

481

222

243

265

287

308

330

349

367

386

409

433

456

479

220

241

263

285

306

328

347

365

384

407

431

454

477

218

239

261

283

304

326

345

363

382

405

429

452

475

216

237

259

281

302

324

343

361

380

403

427

450

473

214

235

257

279

300

322

341

359

378

401

425

448

471

212

233

255

277

298

320

339

357

376

399

423

446

469

210

231

253

275

296

318

337

355

374

397

421

444

467

208

229

251

273

294

316

335

353

372

395

419

442

465

303

316

328

350

370

400

426

446

465

487

508

300

313

325

346

366

394

421

440

459

481

503

297

310

322

342

362

389

415

434

453

476

499

282

294

307

319

339

358

384

410

428

446

471

496

279

291

304

316

335

353

374

399

419

443

468

493

275

287

300

312

331

349

370

393

416

440

465

490

256

272

284

297

309

328

346

368

389

413

437

462

486

251

268

280

293

305

324

343

365

386

410

434

459

483

246

264

276

289

301

321

340

361

382

406

430

455

479

241

260

272

285

297

317

336

357

378

403

427

451

475

236

256

268

281

293

313

332

353

374

399

423

447

471

231

252

264

277

289

309

328

349

370

395

420

444

467

226

248

260

273

285

305

324

345

366

392

417

440

463

221

244

256

269

281

301

320

341

362

388

414

437

459

216

240

252

265

277

297

316

337

358

385

411

433

455

211

236

248

261

273

293

312

333

354

381

408

429

450

361

369

377

385

393

401

409

417

425

433

441

448

346

354

361

369

377

385

393

400

408

416

424

431

331

338

346

353

361

369

376

384

391

399

407

414

315

323

330

338

345

352

360

367

375

382

389

396

300

307

315

322

329

336

343

351

358

365

372

379

285

292

299

306

313

320

327

334

341

348

355

362

276

283

289

296

303

310

317

324

331

338

345

352

267

273

280

286

293

300

307

314

321

328

335

342

257

264

270

277

283

289

296

303

310

317

324

331

248

254

261

267

273

279

286

293

300

307

314

321

239

245

251

257

263

269

276

283

290

297

304

311

256

262

269

276

283

290

297

304

255

262

269

276

283

290

297

255

262

269

276

283

290

255

262

269

276

283

Summary of Contents for EHK-05G

Page 1: ...ese instructions may result in improper installation adjustment service or maintenance possibly resulting in fire electrical shock property damage personal injury or death RECOGNIZE THIS SYMBOL AS AN INDICATION OF IMPORTANT SAFETY INFORMATION DO NOT DESTROY THIS MANUAL Please read carefully and keep in a safe place for future reference by a serviceman INSTALLATION INSTRUCTIONS PACKAGE HEAT PUMP AI...

Page 2: ...1 UNIT CLEARANCE 10 TABLE 6 1 14 SEER HEAT PUMP W WITHOUT ELECTRIC HEAT 15 TABLE 6 2 14 SEER PHYSICAL DATA 16 TABLE 7 1 DUCT APPLICATION 208V 17 TABLE 7 2 DUCT APPLICATION 230V 18 TABLE 7 3 7 4 7 5 REFRIGERANT CHARGE FOR H P SYSTEM 20 TABLE 7 6 7 7 7 8 REFRIGERANT CHARGE FOR H P SYSTEM 21 TABLE 7 9 7 10 7 11 REFRIGERANT CHARGE FOR H P SYSTEM 22 TABLE 7 12 7 13 7 14 REFRIGERANT CHARGE FOR H P SYSTE...

Page 3: ...he use of unauthorized components accessories or devices may adversely affect the operation of the heat pump and may also endanger life and property The manufacturer disclaimer any responsibility for such loss or injury resulting from the use of such unauthorized components accessories or devices WARNING Disconnect all power to the unit before starting maintenance Failure to do so can result in se...

Page 4: ...sportation damage 1 1 INSPECTION Refer to Fig 2 2 2 3 2 4 2 5 for unit physical data and to Table 6 1 6 2 for electrical data If components are to be added to a unit they must meet local codes they are to be installed at the dealer s and or the customer s expense Size of unit for proposed installation should be based on heat loss heat gain calculations made in accordance with industry recognized p...

Page 5: ...oss the top of the unit CAUTION Before lifting make sure the unit weight is distributed equally on the rigging cables so it will lift evenly Units may be moved or lifted with a forklift Slotted openings in the base rails are provided for this purpose All panels must be secured in place when the unit is lifted The condenser coils should be protected form rigging cable damage with plywood or other s...

Page 6: ...ressure service port 1 4 SAE Condensate drain connection 3 4 NPTI Trap required Low voltage entrance 7 8 Dia High voltage conn 1 3 8 Dia Front Electrical service access compapartment panel 37 3 4 21 9 16 52 5 7 8 6 5 8 24 13 16 12 11 16 6 5 8 18 1 2 6 5 8 8 9 16 6 5 8 3 11 16 3 3 4 5 16 1 9 16 2 3 8 ...

Page 7: ...de return air opeing The above figure for reference purpose only Unit size 024 030 036 Fig 2 3 Dimensions Back and Bottom Bottom View Back View 50 1 4 1 3 4 1 3 4 35 15 16 1 5 8 14 1 2 4 1 4 14 1 2 18 14 1 2 4 3 8 1 13 16 1 13 16 ...

Page 8: ...n connection 3 4 NPTI Trap required Low voltage entrance 7 8 Dia High voltage conn 1 3 8 Dia Front Electrical service access compapartment panel The above figure for reference purpose only 42 1 16 24 8 1 16 6 5 8 33 1 16 12 11 16 6 5 8 22 1 2 6 5 8 10 3 8 6 5 8 3 11 16 3 3 4 7 16 1 9 16 2 3 8 58 1 2 ...

Page 9: ...rence purpose only Fig 2 5 Dimensions Back and Bottom Bottom View Back View Side supply air opening Side return air opeing Unit size 042 048 060 56 3 4 2 1 4 14 1 2 1 3 4 4 1 4 14 1 2 1 3 4 40 1 4 1 13 16 24 14 1 2 6 5 16 1 13 16 ...

Page 10: ... 2 The minimum clearance without economizer fresh air damper For distance with economicer fresh air damper please refer to the installation instructions provided with the accessory 3 Units may be installed on combustible floors made from wood or class A B or C roof covering materials Table 2 1 Unit Clearance NOTE For units applied with a roof curb the minimum clearance may be reduced from 1 inch t...

Page 11: ...rs or ventilation air intake Flexible joints may be used in the supply and return duct work to minimize the transmission of noise When fastening duct work to the side duct flanges on the unit insert the screws through the duct flanges only DO NOT insert the screws through the casing Outdoor duct work must be insulated and waterproofed CAUTION NOTE Be sure to note supply and return openings Refer t...

Page 12: ...pply circuit protective devices may be either fuses or HACR type circuit breakers 1 3 8 knockouts inside the cabinet are provided for connection of power wiring to electric heater Power wiring is connected to the power terminal block in unit electric cabinet See Electrical Heater Installation Instruction for details 6 0 ELECTRICAL WIRING Field wiring must comply with the National Electric Code NEC...

Page 13: ...CONTROL WIRING IMPORTANT Class 2 low voltage control wiring SHOULD NOT be run in conduit with main power wiring and must be separated from power wiring unless class 1 wire of proper voltage rating is used Low voltage control wiring should be 18 AWG color coded For lengths longer than 50 ft 16 AWG wire should be used Two 7 8 holes can be used for control wires going into the unit one on left side a...

Page 14: ...le phase power supply Fig 6 2 Typical Field Power Wiring Diagram R G Y W C R G Y W1 W2 C 24 volt transformer THERMOSTAT UNIT CONTROL BOARD THERMINAL STRIP B wire be used with heat pump system only reversing valve energizes at the heating mode and cut off at the cooling mode Minimum wire size of 18 AWG wire should be used for all field installed 24 volt wire Only required on units with supplemental...

Page 15: ... 15G 11 3 15 2 54 2 62 5 68 78 70 80 EHK 05G 3 8 5 1 18 1 20 8 23 26 25 30 EHK 08G 5 6 7 5 1 27 1 31 3 34 39 35 40 EHK 10G 7 5 10 1 36 1 41 7 45 52 45 60 EHK 15G 11 3 15 2 54 2 62 5 68 78 70 80 EHK 20G 15 20 2 72 2 83 3 90 104 90 110 EHK 05G 3 8 5 1 18 1 20 8 23 26 25 30 EHK 08G 5 6 7 5 1 27 1 31 3 34 39 35 40 EHK 10G 7 5 10 1 36 1 41 7 45 52 45 60 EHK 15G 11 3 15 2 54 2 62 5 68 78 70 80 EHK 20G 1...

Page 16: ...ect No speeds 1 1 1 Number of motors 1 1 1 Motor HP each 1 8 1 6 1 6 RPM 1075 825 825 Nominal total CFM 1960 2565 2565 DIRECT DRIVE EVAP FAN DATA Quantity 1 1 1 Fan Size Inch 10 9 10 9 10 9 Type Centrifugal Centrifugal Centrifugal No speeds 3 3 3 Motor HP each 1 4 1 2 1 2 RPM 1075 1075 1075 Motor frame size 48 48 48 FILTERS No Size Recommended in 1 22 14 1 1 22 14 1 1 22 14 1 Models Component Scro...

Page 17: ...152 0 78 0 77 0 75 0 73 776 831 884 930 228 220 213 203 1 1 1 06 1 03 0 99 929 970 1004 280 266 253 1 37 1 32 1 26 756 357 706 333 654 309 600 283 842 397 782 369 718 339 625 295 805 380 693 327 CFM L S RPM Watts Amps CFM L S RPM Watts Amps CFM L S RPM Watts Amps 30 Low Middle High 978 462 631 687 743 786 298 288 276 265 1 44 1 39 1 33 1 28 822 858 890 921 317 302 285 267 1 55 1 47 1 41 1 34 917 9...

Page 18: ...9 782 252 250 248 246 1 1 1 09 1 08 1 07 1038 490 955 451 846 400 700 331 860 895 935 976 374 370 362 354 1 66 1 65 1 63 1 6 1004 474 847 400 604 285 975 1005 1036 492 481 468 2 26 2 22 2 17 1227 579 1185 560 1150 543 1122 530 1085 512 1055 498 1024 484 980 463 704 754 805 848 887 932 978 1018 203 217 230 237 250 262 274 282 1 6 1 7 1 8 1 9 1 95 2 03 2 12 2 18 1411 666 1365 645 1330 628 1298 613 1...

Page 19: ...o poor duct design Air supply diffusers must be selected and located carefully They must be sized and positoined to deliver treated air along the perimerter of the space If they are too small for their intended airflow they become noisy If they are not located properly they cause drafts Reture air grilles must be properly sized to carry air back to the blower If they are too small they also cause ...

Page 20: ...483 224 245 267 289 310 332 351 369 388 411 435 458 481 222 243 265 287 308 330 349 367 386 409 433 456 479 220 241 263 285 306 328 347 365 384 407 431 454 477 218 239 261 283 304 326 345 363 382 405 429 452 475 216 237 259 281 302 324 343 361 380 403 427 450 473 214 235 257 279 300 322 341 359 378 401 425 448 471 212 233 255 277 298 320 339 357 376 399 423 446 469 210 231 253 275 296 318 337 355 ...

Page 21: ...2 74 76 78 80 82 135 128 121 114 107 100 93 86 79 72 65 58 51 44 37 30 Mode De Chauffage High Pressure Service Port psig Vanne Détecté de Pression Haute en psig Low Pressure Service Port psig Vanne Détectée de Pression Basse en psig 36 Heating Charge Chart Tableau De Charge de Chauffage Heating Mode Indoor Dry Bulb Temperature o F Temperature Interieur au Themometre sec en o F 313 328 343 357 370 ...

Page 22: ... 482 220 242 263 284 306 327 345 364 382 407 431 456 480 218 240 261 282 304 325 343 362 380 405 429 454 478 216 238 259 280 302 323 341 360 378 403 427 452 476 214 236 257 278 300 321 339 358 376 401 425 450 474 212 234 255 276 298 319 337 356 374 399 423 448 472 210 232 253 274 296 317 335 354 372 397 421 446 470 208 230 251 272 294 315 333 352 370 395 419 444 468 206 228 249 270 292 313 331 350...

Page 23: ... 389 408 432 456 480 504 243 264 285 306 327 348 367 387 406 430 454 478 502 241 262 283 304 325 346 365 385 404 428 452 476 500 239 260 281 302 323 344 363 383 402 426 450 474 498 237 258 279 300 321 342 361 381 400 424 448 472 496 235 256 277 298 319 340 359 379 398 422 446 470 494 233 254 275 296 317 338 357 377 396 420 444 468 492 231 252 273 294 315 336 355 375 394 418 442 466 490 229 250 271...

Page 24: ...up or shut down according to the following logic 8 2 Protection 8 1 COMPRESSOR CRANKCASE HEATER OPTIONAL 8 2 1 Protection for HP system If sensors T3 T4 become open circuit or short circuit the compressor outdoor fan motor and reversing valve circuit will shut down Discharge temperature protection If discharge temp is 275 F the compressor will shut down If discharge temp is 194 F the compressor wi...

Page 25: ... and T3 is 32 F and last for 50 minutes When defrosting actions if the electrical heater kit is installed the unit would deliver the Aux heater operation signal to the electrical heater kit Low pressure protection When low pressure is 21PSIG the compressor and the outdoor fan motor will stop running When low pressure is 44PSIG the compressor and the outdoor fan motor will resume running 3 minutes ...

Page 26: ...an instant ON Compressor and outdoor fan instant OFF Blower fan delay 90 sec OFF 4 way valve instant OFF 4 way valve instant ON Blower instant ON Compressor and outdoor fan instant ON Heater 1 instant ON 4 way valve instant OFF Blower fan delay 90 sec OFF Compressor and outdoor fan instant OFF Heater 1 instant OFF 4 way valve instant ON Blower instant ON Compressor and outdoor fan instant ON Heate...

Page 27: ...un 4 Turn fan switch to AUTO system switch to COOL and thermostat tem perature setting below room temperature Unit should run in COOLING mode Heating Startup After normal cooling run 1 Turn thermostat switch to HEAT After unit stops wait about 5 minutes 2 Turn thermostat setting above room temperature Unit should run in HEATING mode After unit has run for a while check the following 1 Are fans run...

Page 28: ...28 HP System W iring Diagram 24 42 48 ...

Page 29: ...29 HP System W iring Diagram 30 60 ...

Page 30: ...30 HP System W iring Diagram 36 ...

Page 31: ...MD15IU 019CW 202000172699 ...

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