Question about Heating & Cooling
For a 110 volt unit the white is wired to the neutral buss and black to power . For a 230 volt unit both wires are hot one to each side of incoming power at the load side if the relay.
Posted on Nov 17, 2014
Testimonial: "Thanks JCS. Sorry I do understand your answer. But my problem is the two wire going to the thermostat. there are at least 6 slots from yellow, Green, etc to red and Rw. which slots would a two wire system go to. Thanks in advance."
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Posted on Jan 02, 2017
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