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View Full Version : What is the tan wire for on a weathertron thermostat

nickdud
Feb 28, 2010, 08:19 PM
Can you put a honeywell rth7500 thermostat in place of a trane thermostat for heat pumps
hvac1000
Mar 1, 2010, 04:22 AM
Tan wire

Outdoor anticipator reset

Used on GE/Trane/American Standard and
Some Carrier Products.

It could also be for other uses.