Bryant Evolution proprietary thermostat wiring

[Rrunkle]

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

[Jim-Martin]

No

the 355 is a variable speed and variable output unit. it need to operate with the proper thermostat or it will not work correctly.