Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata
10LEGENDNOTES:1. Compressor and fan motors are thermally protected.2. Wire in accordance with National Electrical Code (NEC) and local codes. Replacea
11START-UPPreliminary Checks1. Check that all internal wiring connections are tight andthat all barriers, covers, and panels are in place.2. Field ele
12To troubleshoot:1. Apply voltmeter across crankcase heater leads to see ifheater voltage is on. Do not touch heater. Carefully feelarea around crank
13Table 4 — Pressure vs. Temperature Chart — Puron® Refrigerant (R-410A)Subcooling Method — For 38HDR units only, the sub-cooling method is used to ch
14Table 5 — Subcooling Charging TableCompressor Lockout Switch — The 38HDR unitsare provided with a compressor lockout protective device. Ifthe compre
15Fig. 9 — Troubleshooting the Cooling Cycle
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata
2(FIELD PROVIDED AND INSTALLED)Fig. 2 — 38HDF,HDR Unit DimensionsNOTE: Dimensions shown in feet-inches. Dimensions in ( ) are millimeters.UNIT MODELSC
3Step 2 — Rig and Mount UnitMOUNTING ON GROUND — Mount unit on a solid, levelconcrete pad. Position unit so water or ice from roof does notfall direct
4Only use factory specified liquid-line filter driers with ratedworking pressures less than 600 psig.NOTE: Do not install a suction-line filter drier
5Table 1B — 38HDR018-060 Physical DataLEGEND *Unit shipped with full factory charge. See ARI (Air Conditioningand Refrigeration Institute) capacity ta
6Step 4 — Make Electrical ConnectionsCONTROL CIRCUIT WIRING — Control voltage is 24 v(40 va minimum). See Fig. 5 and unit label diagram for field-supp
7Table 2 — 38HDF Electrical DataLEGEND*Permissible limits of the voltage range at which unit will operatesatisfactorily.NOTES:1. Control circuit is 24
8Table 3 — 38HDR Electrical DataLEGEND*Permissible limits of the voltage range at which unit will operatesatisfactorily.NOTES:1. Control circuit is 24
9LEGENDNOTES:1. Compressor and fan motors are thermally protected.2. Wire in accordance with National Electrical Code (NEC) and local codes. Replacean
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