24 VOLT CIRCUIT
With Interface Board
Two
Heat Relay (K2 Replaceable) 
2 (PWR) LED
PWR
24V
TRANSFORMER
J3 PIN 8
FUSE
LED 3 (24V)
Heat Relay
(K3 Replaceable)
LED 4 (PWR)
PWR
High Voltage
to Ignitor
| IGNITION |
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| IGNITION |
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| Flame Sensor |
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| Flame Sensor |
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| MODULE |
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| MODULE |
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High Voltage
to Ignitor
V2D
1 (GV) LED
J1 PIN 9
HIGH
LIMIT
SWITCH
DRAIN
SAFETY
SWITCH
This switch used only with
V1D
LED 5 (GV)
J3 PIN 9
HIGH
LIMIT
SWITCH
DRAIN
SAFETY
SWITCH
GAS | GAS |
VALVE | VALVE |
LEFT VAT | RIGHT VAT |
