| Typical Wiring Connections |
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WITHOUT ECONOMIZER |
| WITH ECONOMIZER |
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THERMOSTAT | OUTDOOR UNIT | THERMOSTAT | OUTDOOR UNIT | ECONOMIZER | ||
R | R | R |
| R |
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C | C |
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| C |
| BLUE |
Y | Y | Y1 |
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| YELLOW |
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| Y |
| YELLOW |
W | W |
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| W |
| W |
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G | G |
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| G |
| G |
| GREEN |
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| Y2 |
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| BLACK |
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| ORANGE | (Not Used) | |
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SINGLE PHASE |
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| THREE PHASE |
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L2 | L1 |
| L3 | L2 | L1 |
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| GROUND |
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| GROUND |
| SCREW |
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| SCREW |
POWER WIRING |
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| POWER WIRING |
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(75°C MIN. WIRE) |
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| (75°C MIN. WIRE) |
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POWER WIRING |
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| POWER WIRING | |||
24V CONTROL WIRING |
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| 24V CONTROL WIRING | |||
(NEC CLASS 2) |
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| (NEC CLASS 2) | |||
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| CAUTION |
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| Do not connect | C connections except when |
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| required by the indoor thermostat. Refer to the |
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| thermostat installation instructions. |
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Figure 8
Issue 1008 | Page 9 |