Carrier 38AQS012 Installation, Start-Up And Service Instructions Manual page 8

ELECTRIC
HEATER
ACCESSORY
40RMQ024
UNIT
RETURN
AIR
SUBBASE
ACCESSORY
15 DIAMS
MIN
LEGEND
NEC — National Electrical Code (U.S.A.)
TXV — Thermostatic Expansion Valve
Piping
* Field supplied.
NOTES:
1. All piping must follow standard refrigerant piping techniques. Refer to Carrier System Design
Manual for details.
2. All wiring must comply with 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. Filter driers must be bi-flow type suited for heat pump duty.
5. Condensing unit A should be the first on last off and be connected to the lower half of the coil.
6. Internal factory-supplied TXVs and check valves not shown.
Fig. 5B — Typical Piping and Wiring (38AQS With 40RMQ024,028)
DISCONNECT
PER NEC
24 V
CONTROL
WIRE
FUSED
DISCONNECT
SWITCH*
BULB CAPILLARY
TUBES
8 DIAMS
MIN
SIGHT
GLASS*
10 DIAMS
MIN
CONDENSATE
DRAIN
INSULATED
VAPOR LINE
8
FILTER
DRIER*
FUSED
DISCONNECT
SWITCH*
LIQUID
LINE
CONDENSING
UNIT B
INSULATED
VAPOR LINE
LIQUID
LINE
CONDENSING
UNIT A