Lennox ZHA036 Installation Instructions Manual Download Page 18

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Page 18

ZH 036, 048, 060

TABLE 5

ZHA048 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature



105



115



Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

113

253

116

293

119

336

122

383

125

435

128

492

121

258

123

297

126

341

129

387

133

440

137

498

133

267

138

308

143

354

146

401

151

459

154

516

140

273

148

317

155

366

161

418

167

475

172

536

TABLE 6

ZHA060 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature



105



115



Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

113

254

115

292

119

335

122

380

125

430

128

487

121

260

123

299

126

343

130

391

134

440

137

496

130

265

138

308

143

354

147

404

151

456

154

513

136

270

145

315

153

364

160

414

167

471

172

529

TABLE 7

ZHB036 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature



105



115



Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

119

236

122

274

125

315

128

361

130

410

133

464

126

239

128

278

132

320

136

366

138

416

141

471

135

245

144

285

151

330

153

380

158

429

161

487

140

250

151

290

159

335

167

385

174

440

178

498

TABLE 8

ZHB048 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature



105



115



Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

116

248

119

287

121

328

123

374

126

423

128

477

123

252

127

292

129

336

132

382

135

433

137

487

133

260

140

302

145

347

148

395

152

451

156

505

137

264

146

308

154

357

162

409

168

464

173

523

TABLE 9

ZHB060 NORMAL OPERATING PRESSURES

Outdoor Coil Entering Air Temperature



105



115



Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

Suct

(psig)

Disc

(psig)

114

255

118

297

120

338

123

387

126

433

130

487

121

257

125

298

131

350

131

389

134

443

137

504

131

267

138

311

144

362

148

410

152

457

153

524

137

269

143

315

154

364

162

417

167

474

169

534

Summary of Contents for ZHA036

Page 1: ...ng and Packing List Page 3 General Page 3 Requirements Page 3 Unit Support Page 4 Duct Connection Page 4 INSTALLATION INSTRUCTIONS ZHA036 3 TON ZHB036 3 TON ZHA048 4 TON ZHB048 4 TON ZHA060 5 TON ZHB0...

Page 2: ...937 ZHA036 046 44 7 8 1140 ZH 060 ZHB036 048 10 7 8 276 25 5 8 651 5 1 8 130 75 7 8 1927 TOP VIEW Base 24 9 16 624 12 1 8 308 5 1 8 130 BOTTOM SUPPLY AIR OPENING BOTTOM RETURN AIR OPENING 17 3 4 451...

Page 3: ...contains both refrigerant and oil Some rubber roofing material may absorb oil causing the rubber to swell Bubbles in the rubber roofing material can cause leaks Protect the roof surface to avoid expo...

Page 4: ...ny form of moisture from entering unit Recommended minimum frame height is 14 356mm 4 Duct must be attached to the roof mounting frame and not to the unit Supply and return plenums must be installed b...

Page 5: ...CONE SEALANT BETWEEN DUCT COVER FLANGE AND UNIT INSULATION NOT TO SCALE 4 Install return air duct on the intake air side of the horizontal economizer See figure 5 5 Horizontal economizer and return ai...

Page 6: ...thermostat where it might be affected by drafts or dead spots behind doors and in corners hot or cold air from ducts radiant heat from sun or appliances concealed pipes and chimneys IMPORTANT Unless f...

Page 7: ...gure 9 Note Static pressure readings can vary if not taken where shown 3 Measure the indoor blower wheel RPM 4 Referring to pages 9 14 use static pressure and RPM readings to determine unit CFM Use op...

Page 8: ...ten four bolts securing motor base to the mounting frame D Check Belt Tension Overtensioning belts shortens belt and bearing life Check belt tension as follows 1 Measure span length X See figure 12 2...

Page 9: ...47 0 56 1287 0 6 1326 0 64 1364 0 68 1402 0 72 1300 1139 0 51 1182 0 55 1224 0 58 1265 0 62 1304 0 66 1342 0 71 1379 0 75 1416 0 79 1400 1160 0 57 1202 0 61 1243 0 65 1283 0 69 1322 0 73 1359 0 78 139...

Page 10: ...5 0 92 1382 0 97 1417 1 02 1452 1 07 1486 1 11 1800 1253 0 85 1292 0 91 1331 0 96 1368 1 01 1404 1 06 1439 1 11 1473 1 16 1506 1 21 1900 1279 0 94 1317 1 00 1355 1 05 1392 1 10 1427 1 16 1461 1 21 149...

Page 11: ...422 1 28 1456 1 34 1489 1 40 1521 1 45 1554 1 50 2200 1341 1 22 1378 1 28 1414 1 34 1448 1 41 1481 1 46 1513 1 52 1546 1 57 1578 1 62 2300 1371 1 34 1407 1 41 1442 1 47 1475 1 54 1507 1 59 1539 1 65 1...

Page 12: ...1231 0 54 1271 0 58 1310 0 62 1347 0 66 1385 0 69 1300 1115 0 50 1161 0 53 1204 0 56 1246 0 60 1286 0 64 1325 0 68 1362 0 72 1399 0 76 1400 1135 0 56 1179 0 59 1222 0 62 1264 0 66 1303 0 70 1341 0 75...

Page 13: ...1335 0 94 1375 0 98 1413 1 02 1449 1 07 1485 1 12 1800 1233 0 91 1276 0 94 1318 0 98 1358 1 02 1397 1 06 1434 1 11 1469 1 16 1504 1 21 1900 1261 0 98 1303 1 02 1343 1 06 1382 1 11 1420 1 16 1455 1 21...

Page 14: ...944 1 15 971 1 22 997 1 28 1022 1 34 1046 1 40 1070 1 46 2200 902 1 13 931 1 19 959 1 24 986 1 31 1012 1 37 1036 1 43 1060 1 50 1084 1 56 2300 920 1 23 948 1 29 975 1 35 1001 1 41 1027 1 47 1051 1 53...

Page 15: ...15 1 5 1 7 ZA03 906 1383 2 ZA06 1262 1634 ZHB060 1 1 1 1 15 1 5 1 7 ZAA01 522 784 ZAA02 632 875 2 ZAA03 798 1105 NOTE Using total air volume and system static pressure requirements determine from blow...

Page 16: ...tional Electric Heat An increased heating demand W2 will energize electric heat Electric heat is also energized during the defrost cycle W1 to maintain discharge air temperature Cooling 1 Set thermost...

Page 17: ...charge Note that suction pressure can change as charge is adjusted 7 Example ZHA036 At 95 F outdoor ambient and a measured suction pressure of 130psig the target liquid temperature is 105 5 F For a m...

Page 18: ...105 F 115 F Suct psig Disc psig Suct psig Disc psig Suct psig Disc psig Suct psig Disc psig Suct psig Disc psig Suct psig Disc psig 119 236 122 274 125 315 128 361 130 410 133 464 126 239 128 278 132...

Page 19: ...100 110 120 130 110 120 130 140 150 160 170 Outdoor Temperature F Suction Pressure psig 105 95 115 85 75 65 180 ZHA048 CHARGING CURVE 70 80 90 100 110 120 130 110 120 130 140 150 160 170 Suction Pres...

Page 20: ...0 110 120 130 110 120 130 140 150 160 170 Outdoor Temperature F Suction Pressure psig 105 95 115 85 75 65 180 ZHB 036 CHARGING CURVE 70 80 90 100 110 120 130 110 120 130 140 150 160 170 Outdoor Temper...

Page 21: ...100 110 120 130 110 120 130 140 150 160 170 Suction Pressure psig 105 95 115 85 75 65 180 Outdoor Temperature F 60 ZHB060 CHARGING CURVE 70 80 90 100 110 120 130 110 120 130 140 150 160 170 Suction P...

Page 22: ...ting The TEST mode may be started any time the unit is in the heating mode and the defrost thermostat is closed or jumpered If the timing jumper is in the TEST position at power up the defrost control...

Page 23: ...psig DO NOT REPLACE COMPRESSOR C Filters Units are equipped with temporary filters which must be replaced prior to building occupation See table 11 for correct filter size Refer to local codes or app...

Page 24: ...rmed slabs On units with two slabs dirt and debris may become trapped between the slabs To clean between slabs carefully separate coil slabs and wash them thoroughly See figure 16 Flush coils with wat...

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