, posted Thu 17 Jan 20:58
I have a Trane Weathertron baystat240 3AAT80B1A1 thermostat and would like to replace it with a Honeywell RTH3100c. The wires on the old stat are as follows:
R= Red T= Brown O= Orange G= Green Y= Yellow X2=Black B= Blue U & W wired together= White
The New Honeywell has
E Aux Y G O L R B C
The heat pump I have is a Trane TWV730A140A0 with Aux/emerg heat. Im not sure which wires go where on the new thermostat. I would be thankfull for any help regarding this issue.
Replies:
Houston204
"Re(1):Honeywell Thermostat wiring question"
, posted Thu 17 Jan 21:14
New terminal = wire E = black Aux = white Y = yellow G = green O = orange R = red B = not used C = blue Tape off your tan wire.
"Tip of the Day" Remember to remove power first.
Intruder
"Re(2):Honeywell Thermostat wiring question"
, posted Fri 18 Jan 07:08
Houston204,
Thank you very much for your quick response. I will try this tonight when I get home from work.
"Honeywell Thermostat wiring question" 
