Trane Heat Pump Assistance

[summerperson]

Despite my best effort to find a good installer, the installation of a new heat pump system has been a nightmare. Thankfully, with persistence, I have been able to get problems resolved.

However, over the weekend, I realized that during the defrost cycle, the auxiliary heat does not kick in. I had 40 degree air coming out of the registers during the defrost cycle. Outside temperature was in the high 20s. When I put the system in emergency heat mode, I did get warm air from the registers. There must be a wiring problem. Before I call in the installer again, I would like to find out what is the correct wiring. I don’t plan to change any of the wiring myself, I just would like to know what is correct so I can make sure the job is done right.

Below is the information on the equipment and how they are wired:

Trane Heat Pump: 4TWX5024A1000A
Air Handler: 4TEE3F1B1000A
Thermostat: TCONT802AS32DAA
10 KW back-up heat: WBAYHTR1410BRKR

The wiring is as follows:

Thermostat > Air Handler > Heat Pump

Red > Red > Red
Orange > Orange > Orange
Blue > Blue > Blue
Yellow > Yellow > Yellow
Green > Green > Green (not wired – just hanging loose)
W1 –white > W1 –white

The dip switches on the air handler are set as follows for Comfort-R:

1 off
2 on
3 off
4 off
5 on
6 on
7 on
8 off

The green wire to the heat pump is connected at the air handler, but just hanging down and not connected to anything at the heat pump.

Also, my understanding was the auxiliary heat was to go on in two stages. Is the wiring setup to do this?

Any help that can be provided will be gratefully appreciated. I just want the system to run correctly. Thanks.

[beenthere]

Other then your correct, the wiring is not correct.
We aren't allowed to tell you what is wrong.

Since, others can see the post, and would do DIY repairs to their systems.

Just call your contractor back, and tell them you want the aux heat wired to come on during defrost.

As to the dip switch settings, I'll let someone else answer that.

[dandyme]

those dip switches only select cfm in emer ht.....switch 7&8

make sure the t-stat is configured right-----it's a vision pro which trane "dumbed down"

I don't know what all you ntook apart to see wire color & connections-------------but------------something is not where/what it should be