New thermostat wiring issue - http://www.hvacmechanic.com/ Forums

Original message

arudisu

68.13.128.135

"New thermostat wiring issue" , posted Sat 14 Jun 17:44

I had an old comfortmaker thermostat and putting in a hunter digital dispay thermostat. The digital thermostat has labels for G, W, Y, RC and RH. My old setup has 6 wires. I have matched the G, W, and Y. but now I have and orange, red and blue wire that I cant seem to get right. Blue originally was connected to C, Red was connected to R and orange to O.

Replies:

Houston204

98.196.66.53

"Re(1):New thermostat wiring issue" , posted Sat 14 Jun 18:01:

Return your new stat and get a multistage heat pump stat.

These 2 will supprot your system...

"Tip of the Day" Remember to remove power first.

[this message was edited by Houston204 on Sat 14 Jun 18:14]

arudisu

68.13.128.135

"Re(2):New thermostat wiring issue" , posted Sat 14 Jun 18:10

i dont think i have a heatpump though. on my old thermostat i didnt have any heatpump settings.

Houston204

98.196.66.53

"Re(3):New thermostat wiring issue" , posted Sat 14 Jun 18:17

O energizes the reversing valve on heat pumps for cooling.
Standard systems do not use O.

Post the make and model of your outdoor unit for verification. (Or Google it)

"Tip of the Day" Remember to remove power first.

arudisu

68.13.128.135

"Re(4):New thermostat wiring issue" , posted Sat 14 Jun 18:21

It looks like you are right. Outdoor unit is a comfortmaker DYB0180