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Need help wiring Honeywell th8320u1008 to carrier infinity 80 gas furnace

Need help wiring Honeywell th8320u1008 to carrier infinity 80 gas furnace


  #1  
Old 08-24-13, 09:24 AM
K
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Need help wiring Honeywell th8320u1008 to carrier infinity 80 gas furnace

Painters removed the honeywell thermostat before painting, leaving me to figure out how to put it back on the wall. Only three wires are coming from the wall - red, green , and white. Which screws should I connect those three wires to on the thermostat?

I note that the thermostat has different markings for "heat pump" and "conventional". There is a jumper connecting RC and R. I tried connecting the wires to G, W, and R on the conventional column (conventional W = heat pump O/B) and the result was the furnace came on full blast and wouldn't turn off no matter what I did with the thermostat settings.

Any help appreciated!

Thanks-
 
  #2  
Old 08-24-13, 10:25 AM
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Try red to R/RC, green to G, and white to C.
 
  #3  
Old 08-24-13, 07:49 PM
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Welcome to the forums.

Close......try:

Red - R/RC - hot
Green - G - fan
White - W - heat

If you look inside your furnace..... you should see those same three wires. Those wires will match the letters at that end also.
 
 

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