Help Please !! A/C upgrade
I am replacing my Coleman Mach A/C units with Atwood units. Both are controlled with wall mounted thermostats. The Coleman is analog the Atwood is digital. I have the 115v power hooked up and the ther...
Forum Discussion
GordonThree wrote:
How many wires do you have? Can you post a pic? Shouldn't need the furnace in August right?
There is the three 115v wires black /white /green. They are connected now. There are (from the A/C) one harness that plugs into the harness from the thermostat so that is connected. That leaves two blue wires and one red and one black.The red and black are the 12v wires to power the thermostat. the blue wires go to the furnace. The old thermostat has a 5 wire harness that went to the old A/C unit. two of those wires should go to the furnace. The colors are red, yellow,blue, green and white. The manual said the two blue wire can be hooked up ether way. IF anyone knows what wire I should hook to the blue wires coming from the new A/C unit PLEASE let me know or how I can figure it out.
