Bryant Evolution proprietary thermostat wiring

Discussion in 'HVAC Heating & Cooling' started by Rrunkle, May 1, 2013.

  1. Rrunkle

    Rrunkle New Member

    Messages:
    1
    Location:
    Cincinnati
    I have a Bryant evolution 355MAV, with the evolution thermostat. It is wired using four wires, with letters A, B, C and D (proprietary scheme, I believe). I have purchased a NEST thermostat and would like to know if my thermostat wiring can be rewired (at the furnace) in order to use standard thermostat wiring (such as Y, W, R and G)? I other words is my 355MAV Capable of being run using a standard thermostat?

    Thanks, Rob
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