33
Connector J8
contains inputs and outputs for the
Flame Safety Controller (FSC)
Pin 1
- 24VAC Output to Pressure Switch Input
(PSW) on FSC or Electric Heater (option)
Pin 2
- 24VAC Output to Thermostat Input
(TH/W) on FSC
Pin 3
- Detects 24VAC Presence from IND on FSC
Pin 4
- 24VAC Input from V1 on FSC
Pin 5
- 24VAC Output to Main Gas Valve
(Connected to J8-4)
Pin 6
- 0-10VDC + Analog Output to Modulating
Gas Valve
Pin 7
- 0-10VDC - Output to Modulating Gas Valve
Pin 8
- Modulating Gas Valve Shield
Pin 9
- 24VAC Common to Main/Pilot Gas Valve
Pin 10
- 24VAC Input from Vent Proving Switch
(J8-1) / Electric Heat Dry Contact
Pin 11
- 24VAC Output (L1) on FSC
Pin 12
- 24VAC Supply Power (R) on FSC
Pin 13
- 24VAC Output to High Limit Switch
Pin 14
- 24VAC Output to Vent Proving Switch
Pin 15
- Detects 24VAC Presence from Roll Out
Switch
Pin 16
- Detects 24VAC Presence from High Limit
Switch
Pin 17
- 24VAC Output to Roll Out Switch
Pin 18
- Valve Ground (V2) on FSC/High Efficiency
(HE) Furnace Relay (RE-B)
Connector J9
contains 120V AC connections
Pin 1
- 120VAC Main Input
Pin 2
- N/A
Pin 3
- 120VAC Input from Fire Micro-Switch
Pin 4
- 120VAC Output to Intake/Discharge Damper
Actuator
Pin 5
- 120VAC Input from Intake Damper End
Switch
Pin 6
- 120VAC Output to Drain Heater
Pin 7
- 120VAC Output to Cabinet Heater
Pin 8
- 120VAC Neutral
Connector J10
contains 120V AC connections
Pin 1
- N/A
Pin 2
- N/A
Pin 3
- N/A
Pin 4
- 120VAC Output to Crankcase Heater
Pin 5
- N/A
Pin 6
- N/A
Pin 7
- N/A
Pin 8
- N/A
1
10
18
9
1
8
1
8
