Typical Single-Phase Control Wiring Schematic - Carrier 50HS Product Data

Typical single-phase control wiring schematic

NOTES:
1. If any of the original wire furnished must be replaced, it must be re-
placed with type 90° C wire or its equivalent.
2. Thermostat: HH07AT171
Subbase: HH93AZ188
3. Set heat anticipator at .26.
4. Use copper conductors only.
24
LEGEND
AWG — American Wire Gage
C — Contactor, Compressor
CAP — Capacitor
CCH — Crankcase Heater
COM — Common
COMP — Compressor Motor
DB — Defrost Board
DFT — Defrost Thermostat
DR — Defrost Relay
EQUIP — Equipment
FU — Fuse
GND — Ground
HR — Heater Relay (Strip Heat)
IFM — Indoor Fan Motor
IFR — Indoor-Fan Relay
IP — Internal Protector
MOCP — Maximum Overcurrent Protection
NEC — National Electrical Code
OFM — Outdoor-Fan Motor
QT — Quadruple Terminal
RVS — Reversing Valve Solenoid
ST — Start Thermistor
TDR — Time-Delay Relay
TRAN — Transformer
Field Splice
Terminal (Marked)
Terminal (Unmarked)
Terminal Block
Splice
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To indicate common potential only, not to represent wiring.