Greetings all!

My girlfriend asked me to replace her Trane Weathertron thermostat with a RiteTemp 6025. The old thermostat is model BAYSTAT 239. It has two glass bulbs in it and additional switch settings (aside from heat/cool and fan) for AUX and EMER heat (gas is aux, electric is emer). The following wires are installed inside.

B, W, R, T, Y, G, O, X2. Ironically, that matches the color of the wires (blue, white, red, tan, yellow, green, orange, and the X2 is black.

The outside unit is a Trane XE1000 heat pump/compressor and the air handler unit is a Trane also, model TWV036B140A1.

Obviously, I'm writing because the RiteTemp thermostat doesn't address any setup with 8 wires. Their conversion chart is more confusing than I had ever thought imaginable, up to and including the warning to connect the C-wire to the B-terminal in a Trane setup with both B and O wires. Additionally, the jumper setup is eluding me since none of the installation scenarios apply. The closest I can get is a 5-wire heat pump w/aux heat, but the booklet mentions wires W2 and RH, neither of which correspond to what is on the old unit.

I'm heading home in the morning and out to Afghanistan during the week, so I'd like to get this done ASAP for her. Thanks for your help, folks!

Choxnpinz
USAF

OOPS! Correction... The old thermostat has a switch from normal heat to emergency (no aux switch). A green indicator light is there for AUX and a red light for EMER.

Is your new stat a 2 heat stat? If so I can tell you what to put where.

is your new stat a 2 heat stat? if so i can tell you what to put where.

Forgive me, but
I'm not sure what you mean by two heat. If you mean it would have a separate control for the emergency heat, the answer would be no.

OK if you have no emergency heat it can not be wire the same as the last stat if it had one. Is the indoor unit gas or electric?

ok if you have no emergency heat it can not be wire the exact same as the last stat if it had one. is the indoor unit gas or electric?

Both. It has gas as the aux heat and electric as the emergency heat.

OOPS, sorry, it only has electric aux heat. My apologies.

Update... I called tech support and they told me that the W wire should go to W2, R wire should go to RH, Tan line and black lines don't get attached to anything, B to C (since it's a Trane), O-O, G-G, Y-Y, and jumpers 4, 5,and 7 closed (as per page 20 of the installation manual).

The A/C works fine except the compressor runs constantly and when the mode select is in OFF, the compressor runs as a heat pump. That totally baffled tech support and I had to flip the breakers to the outside unit for fear of damaging it without the air handler running.

Essentially, the air handler does its job and turns off when the right temp is reached, but the compressor continues to run cold. When I turn the select switch to OFF, it starts pumping heat. Tech support is out of ideas. Any suggestions?