NOTE: The gas valve inlet press tap connection is suitable to use as test gage connection providing test pressure DOES NOT exceed maximum
0.5psig
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| FIELD | |
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| FIELD | |
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| FACTORY | |
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| FACTORY | |
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| NOTE 5 |
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| THERMOSTAT |
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| FIVE |
| W | C | R | G | Y | ||
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| TERMINALS | |||||||
| WIRE |
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| DISCONNECT |
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| HEATING |
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| 208/230- OR |
| ONLY |
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| W/W1 |
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| THREE PHASE |
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| NOTE |
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| GND | GND | |
| W2 |
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SINGLE |
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| 3 |
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PHASE |
| R |
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| AUXILIARY | G |
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| SINGLE |
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| PHASE | ||
C |
| NOTE 1 |
| GND | GND | ||||
DISCONNECT |
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| CONDENSING | ||||
SWITCH |
| Y/Y2 |
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| UNIT |
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| TWO WIRE |
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FURNACE | TERMINAL |
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CONTROL | BLOCK |
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CENTER |
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| 1. Connect Y or Y/Y2 terminal as shown for proper cooling operation. | ||||||
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| 2. Proper polarity must be maintained for | ||||
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| 3. Use W2 with | ||||
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| 4. If any of the original wire, as supplied, must be replaced, use | ||||
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| same type or equivalent wire. |
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| 5. Some thermostats require a "C" terminal connection as shown. |
A98325
Fig.
PROCEDURE 8—ELECTRICAL CONNECTIONS
See Fig. 27 for field wiring diagram showing typical field
WARNING: Blower access panel door switch opens
CAUTION: Furnace control must be grounded for proper operation or control will lock out. Control is grounded through green wire routed to gas valve and burner box screw.
A. 115-V Wiring
Before proceeding with electrical connections, make certain that voltage, frequency, and phase correspond to that specified on the furnace rating plate. Also, check to be sure that service provided by utility is sufficient to handle load imposed by this equipment. Refer to rating plate or Table 4 for equipment electrical specifications.
Make all electrical connections in accordance with National Electrical Code (NEC) ANSI/NFPA
Use a separate, fused branch electrical circuit containing a properly sized fuse or circuit breaker for this furnace. See Table 4 for wire size and fuse specifications. A disconnecting means must be located within sight from and readily accessible to furnace.
NOTE: Proper polarity must be maintained for