8 Wire Thermostat Color Code. Color of wire and termination. R the r terminal is the power.
He has compared the wiring to the unit outside also and the hook up is. The main difference setting each apart is the number of colored wires. Typically a furnace plus a c hvac system has four or five thermostat wires and a common wire.
The orange wire only applies to homeowners with an air source heat pump.
Well now it isnt working so he put the old one back on and now it wont work. Color codes for 24v thermostat wires are divided into two groups. Heat pump thermostat wire color code youtube nest wiring diagram 8 wire uploaded by bang mus on thursday february 7th 2019 in category nest wiring diagram. The orange wire connects to terminal o on your thermostat.
