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How to correctly install a RTH7500D thermostat
I am trying to install a Honeywell RTH7500D Thermostat without success. When I install it, I have no access to Emer. (AUX) heat and the fan will not turn on. The original configuration is as follows:
Blue - Y2 White - W Yellow - Y1 Green - G Red - R Black - C Orange - O Could someone give me the correct configuration for the wiring? Thanks. |
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