Fig. 10—typical wiring diagram (48kha030310 shown) – Carrier 48KHA User Manual
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C
— Contactor
Cap.
— Capacitor
Comp
— Compressor
GV
— Gas Valve
IFM
— Indoor Fan Motor
IFMC
— Indoor Fan Motor Capacitor
IFR
— Indoor Fan Relay (Cooling)
IFSS
— Indoor Fan Safety Switch
LS
— Limit Switch
OFM
— Outdoor Fan Motor
P
— Pilot (Safety, Flame Sensing)
PI
— Pilot Igniter
QT
— Quadruple Terminal
ST
— Start Thermistor
TDR
— Time-Delay Relay (Adjustable) (Heating)
Tran
— Transformer
H— Wire Sleeve
O
Component Connection (Unmarked)
o
Component Connection (Marked)
------ — — Field Wiring
________ Field Ground Wiring
--------------Field Power Wiring
-P
l
-
Field Splice
•
•
■ Junction
----- ®— Junction (Thermostat to Subbase)
— ——— Alternate Start Thermistor Wiring
NOTES:
1 Use copper conductors only.
2 Compressor and fan motors thermally protected
3
Transformer pigtails: red208v; orange 230v;
insulate unused lead
4 Neutral for 240/416-v system for Canada only
5
If any of the original wire furnished must be
replaced, it should be replaced with wire of the
same type or its equivalent
6 Fan motor pigtails; red low, black high, insulate
unused lead
Fig. 10—Typical Wiring Diagram (48KHA030310 shown)
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