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View Full Version : How to wiring noma thermostat with 5 wires blue, white, green,yellow, red,


pdhaliwal
Sep 15, 2010, 01:19 PM
I have white =w, green=g yellow=y red=r and o/b options on the new noma thermostat ( old thermostat was carrier )

wmproop
Sep 15, 2010, 01:29 PM
The o/b options are not needed if you don`t have a heatpump