Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater
Installed TB722OU Honeywell Commercial PRO Programmable Thermostat . Have a Trane Single Phase Heat Pump. Heat Pump starts in Heat Mode and when on Cool Mode won't reverse to Cool Mode.
I have solved all the units except 1 unit. It is same Trane XE1000 HP w/ E heat Strip. Same problem with it except just programming the T stat to the type of System and also programming the reversing valve to energize in the Cool Mode., except it won't work on this particular unit, still running the WeatherThron Trane Tstat (old mercury type) jmfitzgerald Had 8 units to do now just one.
Posted on Jul 04, 2009
Your trane heat pump energizes the reversing valve with O - orange y - is to turn on the unit make sure you have your orange wire hooked up and the tstat programming set to heatpump otherwise your reversing valve might be bad
Posted on Jun 30, 2009
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Posted on Jan 02, 2017
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