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50ZHK: Installation Instructions

Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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A210799

Fig. 15 – Ladder Electrical Diagram

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Содержание 50ZHK

Страница 1: ...ir Filter 17 Unit Top Removal 17 Indoor Blower and Motor 17 Outdoor Coil Indoor Coil and Condensate Drain Pan 18 Outdoor Fan Adjustment 18 Electrical Controls and Wiring 18 Refrigerant Circuit 18 Indoor Airflow 18 Metering Devices 19 High Flow Valves 19 High Pressure Switch 19 Loss of Charge Switch 19 Puron R 410A Compressor 19 Refrigerant 19 Compressor Oil 19 Servicing Systems on Roofs with Synth...

Страница 2: ...ould be level within 1 4 in 6 mm This is necessary for the unit drain to function properly Ground Mount The unit may be installed either on a slab or placed directly on the ground if local codes permit Place the unit on level ground prepared with gravel for condensate discharge Step 3 Provide Clearances The required minimum service clearances are shown in Fig 5 Fig 6 Adequate ventilation and outdo...

Страница 3: ... Size ductwork for cooling air quantity cfm The minimum air quantity for proper electric heater operation is listed in Table 2 Heater limit switches may trip at air quantities below those recommended 4 Seal insulate and weatherproof all external ductwork Seal insulate and cover with a vapor barrier all ductwork passing through conditioned spaces Follow latest Sheet Metal and Air Conditioning Contr...

Страница 4: ...50ZHK Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 4 A210788 Fig 5 Unit Base Dimensions 024 036 ...

Страница 5: ...50ZHK Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 5 A210789 Fig 6 Unit Base Dimensions 042 060 ...

Страница 6: ...TXV ORIFICE ID in mm 0 057 1 448 0 063 1 600 0 067 1 702 0 076 1 930 INDOOR COIL ROWS FINS in FACE AREA sq ft 2 12 4 3 3 15 4 3 3 15 4 3 3 15 4 9 3 15 4 9 3 15 6 1 INDOOR BLOWER NOMINAL COOLING AIRFLOW CFM NOMINAL SIZE D x L in mm MOTOR HP 800 8 x 11 254 x 203 1 3 1000 8 x 11 254 x 203 1 2 1200 9 x 12 279 x 229 1 2 1400 9 x 12 279 x 229 1 2 1600 11 x 12 279 x 229 3 4 1850 11 x 12 267 x 305 1 HIGH ...

Страница 7: ...er to the unit rating plate NEC and local codes for maximum fuse circuit breaker size and minimum circuit amps ampacity for wire sizing The field supplied disconnect may be mounted on the unit over the high voltage inlet hole when the standard power and low voltage entry points are used See Fig 10 and Fig 11 for acceptable location Operation of unit on improper line voltage constitutes abuse and m...

Страница 8: ...ccessory Electric Heat Wiring Refer to accessory electric heat installation instructions for information on installing accessory electric heat Accessory electric heat wiring is shown in Fig 14 Fig 16 NOTE When installing an accessory electric heater the high voltage wire harness pass through must be sealed with silicone or equivalent at the partition in order to comply with the 2 or less air leaka...

Страница 9: ... is placed in AUTO position 2 Place SYSTEM switch in COOL position and FAN switch in AUTO position Set control below room temperature Observe that compressor outdoor fan and indoor blower motors start and that reversing valve shifts Observe that cooling cycle shuts down when control setting is satisfied Reversing valve RV remains energized 3 Place system switch in HEAT position Observe that compre...

Страница 10: ...m refrigerant until charted temperature is reached 10 If outdoor air temperature or pressure at suction port changes charge to new suction line temperature indicated on chart 048 060 Units Indoor TXV 1 Measure Discharge line pressure by attaching a gauge to the service port 2 Measure the Liquid line temperature by attaching a temperature sensing device to it 3 Insulate the temperature sensing devi...

Страница 11: ...5 100 95 90 2716 44 41 38 35 32 404 112 107 102 97 92 2785 45 42 39 36 33 414 114 109 104 99 94 2854 46 43 40 37 34 424 116 111 106 101 96 2923 47 44 41 38 35 434 118 113 108 103 98 2992 48 45 42 39 36 444 119 114 109 104 99 3061 48 46 43 40 37 454 121 116 111 106 101 3130 49 47 44 41 38 464 123 118 113 108 103 3199 50 48 45 42 39 474 124 119 114 109 104 3268 51 48 46 43 40 484 126 121 116 111 106...

Страница 12: ... for heating Y the compressor outdoor fan and indoor fan start immediately If Y cannot satisfy the heating demand the auxiliary or backup heat W2 energizes In case of staged heating W3 is energized if the demand is not met When heating demand is met W3 W2 and Y sequentially de energize shutting the compressor indoor fan and the outdoor fan Continuous Fan With the continuous indoor fan option selec...

Страница 13: ...50ZHK Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 13 A210797 Fig 14 Connection Electrical Diagram ...

Страница 14: ...50ZHK Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 14 A210799 Fig 15 Ladder Electrical Diagram ...

Страница 15: ...50ZHK Installation Instructions Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations 15 A190339 Fig 16 Accessory Electric Heater Wiring ...

Страница 16: ...330 1290 1245 1205 1165 1120 1080 1020 4 ORN SCFM 1430 1380 1340 1295 1255 1220 1175 1135 1080 1000 5 BLK SCFM 1535 1495 1455 1415 1375 1335 1300 1260 1220 1155 42 1 BLU SCFM 1400 1360 1305 1250 1200 1140 1085 1035 985 885 2 PNK SCFM 1455 1415 1365 1315 1260 1200 1155 1115 1070 1020 3 RED SCFM 1480 1425 1370 1320 1265 1215 1160 1105 1055 1030 4 ORN SCFM 1535 1505 1460 1410 1360 1305 1255 1210 1175...

Страница 17: ... and continuing efficiency clean accumulated dirt and grease from the blower wheel and motor annually To clean the blower wheel 1 Remove the blower housing a Remove the screws on the external side of the duct panel that fasten the housing to the duct panel assembly b Remove the side access panel and unscrew the mounting bracket that fastens the blower housing to the internal partition panel of the...

Страница 18: ...screw and slide the fan off the motor shaft 5 When replacing fan blade position blade as shown in Fig 17 Tighten setscrews A220716 Fig 17 Outdoor Fan Adjustment Electrical Controls and Wiring Inspect and check the electrical controls and wiring annually Be sure to turn off the electrical power to the unit Remove access panel to locate all the electrical controls and wiring Check all electrical con...

Страница 19: ...nd Scroll compressor Uniqema RL32 3MAF Copeland Ultra 32 CC Mobil Arctic EAL22 CC ICI Emkarate RL22 or ICI Emkarate 32CF This oil is extremely hygroscopic meaning it absorbs water readily POE PVE oils can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants Take all necessary precautions to avoid exposure of the oil to the atmosphere Servicing Systems on Roofs with Sy...

Страница 20: ...refrigerant cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position For cylinders equipped with a dip tube charge Puron R 410A units with cylinder in upright position and a commercial metering device in manifold hose Charge refrigerant into suction line Troubleshooting Refer to the Troubleshooting Chart Table 9 for troubleshooting information Start up Che...

Страница 21: ...ne cause and correct Defective run start capacitor overload or start relay Determine cause and replace Faulty outdoor fan motor or capacitor Replace Restriction in refrigerant system Locate restriction and remove Compressor operates continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat temperature set too low Reset Thermostat setting L...

Страница 22: ...ps _________________ Temperature Cooling Mode Outdoor Air Temperature ________________DB ___________ WB Return Air Temperature _________________DB ___________ WB Cooling Supply Air _____________________DB ___________ WB Pressures Cooling Mode Refrigerant Suction______________________________ psig Suction Line Temp _______________________________ Refrigerant Discharge ____________________________ p...

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