WIRING DIAGRAM FOR SERIES INSTALLATION WITH EXISTING GAS OR OIL FURNACE
SETTING LIMIT CONTROL
FAN LIMIT
50250
100200
150
|
| SAFETY | BLUE |
|
| STOP |
|
LH POINTER | CENTER | RH POINTER | BLACK |
100 | (FAN ON) | 200 | |
(FAN OFF) | POINTER | (LIMIT OPENS) |
|
| 150 |
|
|
|
|
| RED |
HIGH
LIMIT
CONTROL
WALL
THERMOSTAT
ELECTRICAL BOX
TO "R"
BLACK
RED
BLACK
TO "G"
DRAFT
FAN
CENTER
WHITE
WHITE | BLACK | GREEN |
110V POWER SUPPLY FROM GAS FURNACE
| R* |
BLACK | TO GAS |
| FURNACE |
| FAN |
WIRE INTO GAS
Ra VALVE CIRCUIT
* OPTIONAL 120V RELAY MOUNTED IN GAS FURNACE
ALL WIRING SHOULD BE DONE BY A QUALIFIED ELECTRICIAN
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