Nortek P7RE Series Installation Instructions Manual Download Page 17

17

table 10. charging table for 4 ton units

(048k Model)

Suct.

PreSS.

outdoor teMPerature (° F)

70

75

80

85

90

95

100

105

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

129

263

133

131

265

139

288

138

133

267

144

290

143

313

142

135

271

146

292

148

315

147

338

147

137

275

149

296

150

317

152

340

151

363

151

139

300

154

321

155

342

156

365

156

388

156

141

325

158

346

159

367

160

390

160

414

160

143

349

163

371

164

393

164

416

164

439

165

145

353

167

374

168

396

168

418

168

441

168

147

378

172

399

172

421

172

443

172

149

403

176

424

177

446

177

151

428

181

449

181

153

453

185

155

Suct.

PreSS.

outdoor teMPerature (° F)

70

75

80

85

90

95

100

105

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

liq.

PreSS.

diS.

teMP.

123

257

140

125

259

145

282

142

127

261

151

284

147

307

145

129

267

148

286

152

309

150

332

147

131

271

151

292

152

311

154

334

152

357

150

133

295

155

316

156

336

157

359

154

382

153

135

320

159

341

159

361

159

384

157

408

156

137

344

163

365

162

387

161

410

160

433

159

139

348

167

369

166

390

165

412

164

435

163

141

372

170

393

169

415

168

437

166

143

397

173

418

172

439

170

145

421

177

443

175

147

446

179

149

table 9. charging table for 3.5 ton units

(042k Model)

Summary of Contents for P7RE Series

Page 1: ...e plays an important role as well Pay attention to all safety warnings and any other special notes highlighted in the manual Improper installation of the furnace or failure to follow safety warnings c...

Page 2: ...tions 8 Cooling Only Thermostat 8 Heat Cool Thermostat 10 Blower Speed ECM Motor 10 START UP ADJUSTMENTS 10 Pre Start Checklist 10 Start Up Procedure 10 System Cooling 10 System Heating 10 Refrigerant...

Page 3: ...he information listed below must be followed during the installation service and operation of this unit Unqualified individuals should not attempt to interpret these instructions or install this equip...

Page 4: ...ly and return ducts If practical place the air conditioner and its ducts in an area where they will be shaded from the afternoon sun when the heat load is greatest The length of the supply and return...

Page 5: ...ollar so the edge of the unit opening fits between the flange and the bead 2 Overlap the collar ends keeping the small screw holes underneath 3 Align the holes in the crimped area and install one scre...

Page 6: ...n the air box Connecting the Return Supply Air Flexible Ducts Flexible ducts can be connected to the corresponding fittings with the clamps provided with the ducts See Figure 9 Table 4 page 12 NOTE To...

Page 7: ...installer should become familiar with the wiring diagram before making any electrical connections to the unit Anelectricaldisconnectmustbelocatedwithinsight of and readily accessible to the unit This...

Page 8: ...reaker and do not in any case exceed the maximum size listed on the data label of the unit Thermostat Low Voltage Connections The unit is designed to operate from a 24 VAC Class II control circuit The...

Page 9: ...27 1104 29 1051 30 992 32 Tap T3 1460 22 1415 22 1385 23 1335 24 1275 25 1225 26 1170 27 1120 28 Tap T4 1502 21 1466 22 1437 22 1388 23 1345 23 1305 24 1251 25 1204 26 Tap T5 1565 20 1525 21 1490 21 1...

Page 10: ...Cool Thermostat For the highest efficiency the use of a 2 stage Heating Cooling thermostat is recommended The heat cool thermostatpreventssimultaneousoperationoftheheating and cooling units and is eq...

Page 11: ...valve 2 Measure the liquid refrigerant temperature F at the service valve 3 For the temperature measured determine the required liquid refrigerant pressure from Table 5 page 15 Table 6 page 15 Table 7...

Page 12: ...12 13 1 38 3 2 3 2 5 29 Side View Figure 9 Unit Dimensions A 3 Opening for 12 Diameter Supply Duct 9 15 17 50 9 0 Opening for 14 Diameter Return Duct 10 15 5 5 B 1 3 15 Rear View 3 5 4 5 Ton Model Nu...

Page 13: ...ment des conducteurs en cuivre 3 Ne convient pas aux installations de plus de 150 V a la terre FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE WIRING DIAGRAM Packaged Air Conditioner Single Phase NOTES 1...

Page 14: ...vant de faire letretien 2 Employez uniquement des conducteurs en cuivre 3 Ne convient pas aux installations de plus de 150 V a la terre FIELD WIRING LEGEND LOW VOLTAGE HIGH VOLTAGE WIRING DIAGRAM Pack...

Page 15: ...358 150 146 294 137 316 141 338 145 359 150 381 154 148 317 141 338 145 360 149 381 154 404 158 150 317 141 339 145 361 149 382 153 404 158 152 340 145 362 149 383 153 405 157 154 363 149 384 153 406...

Page 16: ...55 146 357 182 378 171 398 162 415 160 148 380 181 401 172 421 164 150 403 181 423 173 152 426 182 154 Suct Press OUTDOOR TEMPERATURE F 70 75 80 85 90 95 100 105 Liq Press Dis Temp Liq Press Dis Temp...

Page 17: ...147 378 172 399 172 421 172 443 172 149 403 176 424 177 446 177 151 428 181 449 181 153 453 185 155 Suct Press OUTDOOR TEMPERATURE F 70 75 80 85 90 95 100 105 Liq Press Dis Temp Liq Press Dis Temp Li...

Page 18: ...40 360 380 400 420 440 460 480 500 520 540 560 580 600 75 80 85 90 95 100 105 110 115 120 125 130 135 Liquid Pressure psig Liquid Temperature F Remove refrigerant when above curve Add refrigerant when...

Page 19: ...19...

Page 20: ...uid Pressure high side _________________________ Stage 1 Suction Pressure low side _________________________ ELECTRICAL SYSTEM Electrical connections tight YES NO Line voltage polarity correct YES NO...

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