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LEGEND
NEC — National Electrical Code
TXV — Thermostatic Expansion Valve
*Accessory item.
†Field supplied.
NOTES:
1. All piping must follow standard refrigerant piping techniques. Re-
fer to Carrier System Design Manual for details.
2. All wiring must comply with the applicable local and national codes.
3. Wiring and piping shown are general points-of-connection guides
only and are not intended for, or to include all details for, a specific
installation.
4. Liquid line solenoid valve (solenoid drop control) is recommended
to prevent refrigerant migration to the compressor. A biflow type
solenoid valve is required.
5. Filter drier must be of the biflow type, suitable for heat pump duty.
6. Internal factory-supplied TXV and bypass check valve not shown.
Fig.5—Typical Piping Diagram, 38AQS/40RMQ
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