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I installed a Honeywell Pro Th4000 and am wondering if the wiring is correct. I only use it for heat no air conditioning. There are only two wires one white and one black. Does the white one go to the W and the black one go to the R. I have a boiler furnace with a pump.

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Id say that's probably correct. Since you only have 2 wires, if it doesn't work one way, it has to be the other!

Posted on Nov 09, 2014

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