My old thermostat "Westinghouse" was connected with 5 wires - green, red yellow, white, black. I want to replace it with thm301m, which has 4 wires - green, red, yellow, white. What i do with the black wire?

Asked by igor on 04/07/2009 0  Answer

ManualsOnline posted an answer 15 years, 7 months ago

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