View Full Version : Trane thermostat baystat239a
MWYDILA
Aug 10, 2010, 11:27 AM
I am replacing the baystat239a t-stat with a programmable honeywell th6220d for my heat pump with aux heat, want to be sure of correct wire hook up
wmproop
Aug 10, 2010, 12:37 PM
be sure to tag each colored wire as you take it off
example=red to r
=white to w
=green to g
this is very important
then the install instructions for the honewell should guide you
almost forgot,, be sure to kill the power at breaker to the furnace before starting
MWYDILA
Aug 11, 2010, 04:42 AM
Thanks, programing the t-stat for the type of system (2heat/1cool) was a bit challenging, but once it was completed, it seems to be online and pumping cool air.