Question about Heating & Cooling
Correct. 4 wires are used for both heat & a/c. 2 are usually for just heat. Attach to contacts for heater.
Posted on Dec 24, 2016
Yes it will. 4 wires diagram most likely for a heater and a/c unit.
Posted on Dec 20, 2016
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Posted on Jan 02, 2017
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