ELECTRICAL / GAS CONNECTION
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| DIAGRAM "A" | |
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| WIRING DIAGRAM CONNECTING TO CIRCULATOR | |||
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| GREEN (GROUND) | |||
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| WHITE (NEUTRAL) |
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| BLACK |
| BROWN (NEUTRAL) | GREEN (GROUND) |
NORMALLY OPEN | ORANGE (HOT) | ||||
| THERMOSTAT | ||||
| CONNECTION | ||||
| GRAY |
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T |
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| WHITE | |
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| (NEUTRAL) | |
T | GRAY |
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| BLACK |
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| (HOT) | |
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| GREEN |
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| (GROUND) |
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| ELECTRICAL | |
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| SWITCH JUNCTION BOX | ||
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| 120V 60 HZ | |
Figure 2-1: Connection Wiring Directly to Central Heating Circulator
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| DIAGRAM "B" | ||
| WIRING DIAGRAM WITHOUT CONNECTION TO CIRCULATOR | ||||
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| ORANGE BROWN GREEN | IMPORTANT NOTE: | ||
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| BE CERTAIN THAT THE ORANGE | |||
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| WIRE IS SECURELY CAPED. | |||
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| FAILURE TO DO SO COULD | |||
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| RESULT IN INJURY OR FIRE |
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| AND COULD DAMAGE THE CONTROL. |
NORMALLY OPEN | ORANGE (HOT) | BROWN (NEUTRAL) | GREEN (GROUND) |
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| THERMOSTAT |
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| CONNECTION |
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T | GRAY | WHITE | |||
GRAY | (NEUTRAL) | ||||
T | BLACK | ||||
| (HOT) | ||||
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| GREEN |
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| (GROUND) |
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| GROUND |
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| BUS |
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| ELECTRICAL | |
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| SWITCH JUNCTION BOX | |||
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| 120V 60 HZ | |
Figure 2-2: Connection Wiring without Wiring Central Heating Circulator
ZONE |
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THERMOSTAT |
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R845A |
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| BOILER | |
SWITCHING |
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| "TT" | ||
RELAY ZONE |
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| GRAY | ||
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1K1 |
| 5 | 3 |
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T |
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T |
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| 1K1 | 1K2 |
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1 | 2 | 6 | 4 | BOILER | |
"TT" | |||||
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| GRAY | |
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| ZONE |
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L1 HOT (BLACK) |
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| CIRCULATOR |
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120 VOLT |
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L2 NEUTRAL |
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(WHITE) |
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Note to Electrical Contractor: The orange wire is 120 Volt/4 Amp maximum for central heating circulator only. Loads greater than 4 amps or 3 amps for HA models only will blow the fuse on the board. The brown wire is the neu- tral wire for the central heating pump only.
Figure 2-3: For circulator amp loads greater than 4 amps (3 amps for “HA” models) use the wiring diagram shown at left. The brown and orange wires will not be used in this application.
PART 3. GAS CONNECTION
WARNING
Failure to follow all precautions could result in fire, explosion or death!
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