Lennox ZHA036 Installation Instructions Manual Download Page 20

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Page 20

ZH 036, 048, 060

ZHA060 CHARGING CURVE

100

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

100

110

120

130

110

120

130

140

150

160

170

Outdoor Temperature (°F)

Suction Pressure (psig)

105°

95°

115°

85°

75°

65°

180

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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