Question about Honeywell CT3200 5-2 Day Electronic Programmable Thermostat Heater

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I bought a honeywell ct3200 and not sure how to hook it up to a two wire system. The wires coming out wall are black and white

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If you just have two wires coming from the wall then attach them to the terminals marked R (may say Rc and or Rh, usually has a jumper installed between the two) and W. Hope this helps

Posted on Oct 05, 2009

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Posted on Jan 02, 2017

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Hi soozankrayg!
Your problem should be pretty simple. (assuming that it is a typical 24volt system) you should hook up the black wire to the "RH" terminal and the white wire on the "w" terminal. Make sure that you turn off the power to the furnace at the breaker or the furnace itself before attempting this. The reason for this is that you can cause a short and either break the fuse at the furnace or burn up the circuit board. This can happen very quickly and is very common when a thermostat is removed.

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What wires go to what


The colors you have are not standard.
Your going to have to see where the wires connect on your appliance to answer this. find out and post back

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Is sounds like you wired it correctly, The black is a little unusual perhaps its blue, anyway, try disconnecting the wires from the thermostat and see if it shuts off. If so, then it may need to re calibrated. I will need some more info to help you anymore.

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