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gandwadventure's avatar
Sep 15, 2014

rv heating and air thermostat

rv heating and air thermostat

I would like to change my Colman-Mach True Air 6537-335 residential central heating and air thermostat to a digital Honeywell RTHL 2510C thermostat. I need diagram to make the changes. I have posted this before but no luck. I need the wiring diagram from one to the other. Could someone post a diagram please? Thanks in advance PS. I have a Winnebago Adventurer 2004 with central heating and air.
  • Your going to like how close the new stat keeps your temps but you also need to add a switch to the blue wire for AC fan speed control.
  • downtheroad wrote:
    Here is what I used for our conversion...


    I am looking for Coleman-Mach TrueAir 6535-335 conversion to HoneywellRTHL2510C.
    I have 12 wires to Coleman and want to know which ones to use for Honeywell.
    they are; yellow,orange,red, black/green, 2-grey, black, white/black,green/white, red/white, brown and white.
    Thanks

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