
TYPICAL WIRING SCHEMATICS (cont)
LEGEND
AHA  | — Adjustable Heat Anticipator  | TH  | —  | ||
C  | — Contactor Compressor  | TRAN  | —  | Transformer  | |
CAP  | —  | Capacitor  | 
  | 
  | Marked Wire  | 
CB  | —  | Circuit Breaker  | 
  | 
  | |
CC— Cooling Compensator
CDT  | — Compressor Discharge Thermostat  | Denotes connection point between  | |
COMP  | — Compressor Motor  | subbase and thermostat  | |
EQUIP  | — Equipment  | Terminal (Marked)  | |
FU  | — Fuse  | ||
  | |||
GND  | — Ground  | Terminal (Unmarked)  | |
HPS  | —   | ||
Terminal Block  | |||
HR  | — Heater Relay  | ||
IFC  | —   | Field Splice  | |
IFM  | —   | ||
IFR  | —   | Splice (Marked)  | |
JB  | — Junction Box  | 
L— Light
LPS  | —   | 
  | 
  | 
  | 
  | 
  | Factory Splice  | 
NS  | — Night Setback Switch  | 
  | 
  | 
  | 
  | 
  | Factory Wiring  | 
OAT  | —   | 
  | 
  | 
  | 
  | 
  | |
  | 
  | 
  | 
  | 
  | 
  | ||
OFC  | —   | 
  | 
  | 
  | 
  | 
  | Accessory or Optional Wiring  | 
OFM | —   | 
  | 
  | 
  | 
  | 
  | |
  | 
  | 
  | 
  | 
  | 
  | ||
PL  | — Plug Assembly  | 
  | 
  | 
  | 
  | 
  | Field Control Wiring  | 
QT  | — Quadruple Terminal  | 
  | 
  | 
  | 
  | 
  | |
  | 
  | 
  | 
  | 
  | 
  | ||
RC  | — Run Capacitor  | 
  | 
  | 
  | 
  | 
  | Field Power Wiring  | 
SW  | — Switch  | 
  | 
  | 
  | 
  | 
  | To indicate common potential  | 
TB  | — Terminal Block  | 
  | 
  | 
  | 
  | 
  | |
TC  | —   | 
  | 
  | 
  | 
  | 
  | only, not to represent wiring  | 
NOTES:
1.Neutral for 240/416 v supply (Canada only).
2.If any original wires furnished must be replaced, it should be replaced with 90 C or its equivalent.
3.Numbers indicate the line location of used contacts. A bracket over 2 numbers signifies a 
4.Must use thermostat HH07AT170, 172 or 174 with subbase HN63AZ176, 177 or 179.
5.Separate field power supply required for electric heater accessory.
502A024, 230-1-60  Units
11