Thermostat Upgrade: 1994 Carrier Heat Pump system
The old Honeywell T874 thermostat that was there, with the Carrier logo on it, was getting extremely inaccurate, and it was cycling the unit WAY ...
Carrier heat pump thermostat.wmv
2009 model
The old Honeywell T874 thermostat that was there, with the Carrier logo on it, was getting extremely inaccurate, and it was cycling the unit WAY ...
2009 model
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