"Travis Jordan" wrote in news:05Lme.56391$Yr4.9283
@fe07.news.easynews.com:


Obviously, it is a different blue wire.

Yes, obviously, but I guess I didn't make it clear that I had already
figured that out. My question was:

"Do the control wires typically connect to something else (transformer?)
between the heatpump and thermostat? I had assumed the transformer is
located within the heatpump and the 24vac is supplied via the red wire to
the stat which then determines which path it returns on. Is that correct?"

What I'm getting at is do I need to start looking for a transformer outside
of the heatpump that feeds the 24vac or are my assumptions correct about
thermostat wiring in general and it's just that the wiring on this set-up
completely jacked?