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Need wiring help for replacing trane model baystat 239 with a honeywell th8321u thermostat

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  • mastabiatch1 Apr 27, 2009

    I have a blue - red - green and yellow wire to hook into a ritetemp digital thermostat... C - B - O - W2 - W - Y - Y2 - RH - RC - G - A... to put those wires in... I am only hooking up an A/C to this with a two speed motor/or fan along with pump etc. I don't know which wire to put where... I have a MasterCool & prior to this had a MasterCool Plus thermostat... HELP !!! Hot as hell in the Mojave desert..

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I am not sure of what help you need on it but here are the most common wiring on a stat
W= heat
C=Common (24V)
R=Hot (24V)
G= Fan
RC=Hot (24v for Cooling)
RH= Hot (24v for Heat)
O= Reversing Valve (Heat Pumps Only)
Hope this helps

Posted on May 11, 2008

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