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Hello. Welcome to JustAnswer.com. My name is XXXXX XXXXX I'll be happy to assist you today.
You are looking for the factory wiring diagram, correct? If so, can you get me the full model # XXXXX the air handler?
I will not be back home until tonight to get that model number. I was hopeing you would have some failry standard Trane wiring information. I'm competent enough to know where to land most of the wires, there are a few terminals that are throwing me for a loop. If you can't supply me with something now, I'll have to get back with you tonight.
There are several different Trane air handlers including the variable and non variable speed, communicating, etc. I can get you a wiring diagram, but the only way to ensure I get you the correct one (with matching wire colors etc) I will need the model #.
I'll go ahead and get you a diagram based on the answers you give to the following questions, but you will need to verify that it's correct when you get home.
Is your air handler variable speed?
Is it in the upflow, downflow or horizontal position?
Now, if all you're doing is hooking up a new thermostat, I can most likely help you without using a factory diagram. Do you have the terminal designations for the thermostat, air handler and condenser?
The unit is a variable speed vertical upflow unit.
I don't have the terminal designations, but it didn't exactly match what was on the new stat. Just get me what you can find now so I have something to try tonight. If it does not work, I'll get the exact model number.
Okay, page 12 of the following document has the typical low voltage wiring for the Trane variable speed air handler with single stage heat pump.
Let me know if that will work for you or if you need further assistance.
Okay, wire as follows:
I will label each in order with equipment interface to air handler to condenser
Y to Y to Y
W O/B to O to O
G to G to N/A
W2 AUX to W1 (with Jumper to W2 & W3) to W1
RH (with jumper to RC and one of the 24vac terminals on the top left) to R to R
The other 24vac terminal on the top left to C to C
Of course you will need a wire from the interface to the thermostat where you will hook D- to D-, D+ to D+, etc.
Does this help?
I think you guys could use this I believe its the right manual with the correct schematic with all the wiring info you should need.
It list your model number on the manual. page 13 has the thermostat air handler and the outdoor unit connections listed .
If I can help further let me know.