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View Full Version : Carrier heat pump thermostat wiring


caroline1425
Feb 14, 2010, 05:32 PM
I am trying to install a Honeywell RTH7500 and foolishly disconnected my wiring before labeling it. The wire colors that I have are white, yellow, red, blue, green, black, brown and orange... can you help me with where they go? I have been getting mixed information from other websites.