Fenwal IDC Pin Configuration
Pin
24VAC/R
24 VAC supply to processor (MCB Output)
TH/W
Thermostat input (MCB Output)
PSW
Pressure Switch Input
GND
System Ground
V1
Gas Valve Power (Output) to Relay
V2
Valve ground
Controls and Systems
Description
Pin
L1
120/240 VAC Input (Hot)
IND/V1
Inducer Blower (Output)
NC
Alarm (Normally closed contacts)
S1
Remote Flame Sensor
FC+, FC
Flame current test pins
Figure 49
68
Description
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