Carrier 38HDR018-060 - Manuals

Page 2 - Unit

2 (FIELD PROVIDED AND INST ALLED) Fig. 2 — 38HDF ,HDR Unit Dimens ions NO T E : Dim e n sio n s sh o w n in fe e t- in ch e s . Dim e n s io n s in ( ) a re m illim e te rs . UNIT M ODE L S CH ASSIS SI Z E (R ef er en ce) ABC D E F G H J K L N P 3 8 HDF Un it Size 3 8 HDR Un it Size 01 8 0 1 8 0 2 ′...

Page 3 - Step 2 — Rig and Mount Unit; Do; Fig. 3 — Lifting Unit with Sling

3 Step 2 — Rig and Mount Unit MOUNTING ON GROUND — Mount unit on a solid, levelconcrete pad. Position unit so water or ice from roof does notfall directly onto unit. Accessory stacking kits can be usedwhen units are to be stacked. See installation instructionsprovided with the accessory kit. Use fie...

Page 6 - Step 4 — Make Electrical Connections; Do not; Fig. 5 — Typical Control Circuit Connections

6 Step 4 — Make Electrical Connections CONTROL CIRCUIT WIRING — Control voltage is 24 v(40 va minimum). See Fig. 5 and unit label diagram for field-supplied wiring details. Route control wire through opening inunit side panel to connection in unit control box. NOTE: For wire runs up to 50 ft, use no...

Page 7 - Table 2 — 38HDF Electrical Data

7 Table 2 — 38HDF Electrical Data LEGEND *Permissible limits of the voltage range at which unit will operate satisfactorily. NOTES:1. Control circuit is 24 v on all units and requires an external power source. 2. All motors and compressors contain internal overload protection.3. In compliance with N...

Page 8 - Table 3 — 38HDR Electrical Data

8 Table 3 — 38HDR Electrical Data LEGEND *Permissible limits of the voltage range at which unit will operate satisfactorily. NOTES:1. Control circuit is 24 v on all units and requires an external power source. 2. All motors and compressors contain internal overload protection.3. In compliance with N...

Page 11 - Fig. 8 — Condenser-Fan Mounting Positions

11 START-UP Preliminary Checks 1. Check that all internal wiring connections are tight and that all barriers, covers, and panels are in place. 2. Field electrical power source must agree with unit name- plate rating. 3. All service valves must be open.4. Belly-band crankcase heater must be tight on ...

Page 13 - Subcooling Method —; Operate unit a minimum of 15 minutes before checking

13 Table 4 — Pressure vs. Temperature Chart — Puron® Refrigerant (R-410A) Subcooling Method — For 38HDR units only, the sub- cooling method is used to check and adjust charge during thecooling season. Refer to Table 5 and the following procedure:NOTE: For use with residential fan coils and the 40QA0...

Page 14 - Table 5 — Subcooling Charging Table; Compressor Lockout Switch —; The 38HDR units; MAINTENANCE; Coil should be washed out with water; TROUBLESHOOTING; See Fig. 9 for troubleshooting information.

14 Table 5 — Subcooling Charging Table Compressor Lockout Switch — The 38HDR units are provided with a compressor lockout protective device. Ifthe compressor shuts down due to any safety device, a currentloop monitoring the compressor current senses no current flow.The unit will lock out until the c...

Page 15 - Fig. 9 — Troubleshooting the Cooling Cycle

Carrier 38HDR018-060 - Manuals

Manuals:

Manual Carrier 38HDR018-060

Summary

Carrier Manuals