Typical Wiring Diagram
LEGEND
Field Splice
Terminal (marked)
Terminal (unmarked)
Splice
Splice (marked)
Factory Wiring
Field Control Wiring
Field Power Wiring
Accessory or Optional Wiring
To Indicate Common Potential
Only: Not to Represent Wiring
BR
Blower Relay
C
Contactor
CAP
Capacitor
COMP
Compressor Motor
CR
Combustion Relay
EQUIP
Equipment
FS
Flame Sensor
FU
Fuse
GND
Ground
GVR
Gas Valve Relay
HPS
High Pressure Switch
HS
Hall Effect Sensor
HV TRAN High Voltage Transformer
I
Ignitor
ICM
Integrated Control Motor
IDM
Induced Draft Motor
IFM
Indoor Fan Motor
IGC
Integrated Gas Unit
Controller
IMR
Indoor Motor Relay
LPS
Low Pressure Switch
LS
Limit Switch
MGV
Main Gas Valve
OFM
Outdoor Fan Motor
QT
Quadruple Terminal
RS
Rollover Switch
TRAN
Transformer
