AboutJ Cook Expertise With 25+ years experience, I am familiar with residential, commercial, and industrial HVAC equipment including but not limited to boilers, chillers, reciprocating and screw compressors. I am trained in all manners of control wiring.
Experience I currently have three HVAC licenses and Refrigeration license by the State of North Carolina. I have been in this field for over twenty years. I have been a service technician for a contractor and also worked at a state college in the repair and maintenance of steam lines and equipment. I am currently the Building Maintenance Superintendent for a municipality.
Question I replacing old Comfortmaker thermostat to Honeywell RTH230B. My old thermostat have following wires: W1-red and white, C-white, G-green, E-red, R-red, Y-yellow, )-orange. New thermostat have only Rh, Rc, W,Y,G. Please tell me how should I connect them. Thank you.
Answer If this is a heat pump, this is not the correct thermostat. If it is not a heat pump it will connect as follows:
Rc and Rh to the red now on R.
W to the red and white now on W 1.
Y to the yellow now on Y.
G to the green now on G.
Cap off unused wires individually so they do not contact other wires. Thanks J
