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View Full Version : Hooking up a new thermostat


bmjohnso9192
Feb 27, 2008, 01:38 PM
Hello there. I have a question about replacing an old honeywell dial thermostat with a new Honeywell Thermostat model rth230b. I have a red, green and white wire. So far, I have it programmed, and hooked up this way... I put the red wire in the Rh, Rc, empty, White in W, and Green in G, y empty. I have hot water heat and no AC. I was just wondering if I had this hooked up correctly! I have never done anything like this before! Thank you in advance!

hvac1000
Feb 27, 2008, 02:12 PM
You have to jump RHand RC for the fan to work on the fan switch depending on your desire. See pages 1/4 and 2/4 for a explanation of this.

Link to manual on line.


http://customer.honeywell.com/techlit/pdf/69-0000s/69-1800.pdf

bmjohnso9192
Feb 27, 2008, 05:44 PM
Thank you!