23
OVERHEAT SAFETY ZONE
With this wiring schematic, the overheat
control will energize the circulator but not the fan relay.The existing fan control
New T'stat | Existing T'stat |
EXISTING BURNER / FAN SYSTEM
( GAS, OIL, ELECTRIC)
Existing T'stat Wire
Connection
will power the fan on temperature rise.
LOW VOLTAGE 24 VAC COIL
( by installer )
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8 |
| 7 | |
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HIGH VOLTAGE ( L1 ) | L |
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6 5 |
| ( by installer ) |
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| 4 | 3 |
| N |
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| 1 |
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| R2 RELAY |
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| Grainger#2XC01 | ( by installer ) |
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to circulator outlet | factory wiring | Omron LY2F 24V | HIGH VOLTAGE ( N ) |
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| HIGH VOLTAGE ( ORANGE) | |||
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| from the control |
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8 | 7 | SPLICE | ( by installer ) | ||
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6 | 5 |
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| 4 | 3 |
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| 1 |
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| R1 RELAY |
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| Grainger#2XC02 | INSIDE the CONTROL | ||
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| Omron LY2F 120V | |||
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| EXISTING HEAT CONTROL WIRING | |||
| New T'stat Wire | 120 VAC FAN WIRING | |||
| ( by installer ) | ||||
New T'stat Wire |
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( by installer ) |
| ENLARGED VIEW | |||
through grommet |
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| to fan control |
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| Hot | Return |
G | R | C |
| Hot |
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| 24 VAC |
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| input 120 VAC |
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| Neut |
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120 VAC |
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| Neut | ||
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| Hot |
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N.O. CONTACT | Return |
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Return |
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| Neut |
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J BOX MOUNTED RELAY |
| Hot |
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WHITE ROGERS # |
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HONEYWELL # R8285A1048 |
| to fan motor |
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( GAS, OIL, ELECTRIC) | EXISTING BURNER / FAN |
| SYSTEM |