I have a Rheem handler with a 46-23115-02 transformer. I do not have a C-wire connection that I can see.
I have a 5 wire cable, so I do have a blue wire available that I can connect as the common wire to operate the Honeywell wireless thermostat.
The transformer in the air handler is:
- 24 V red connected to the red wire on the thermostat
- 24 v brown wire that connects to the condenser unit
- other brown wires that go to a 24 v relay or a secondary transformer
- green wire which is the fan is connected to this secondary transformer or relay... not sure..
Should I connect the C common wire from the thermostat to this brown 24 V wire?
Or should I connect the C common wire from the thermostat to this orange comm wire?
the transformer also on the label says... black wire 240 v blue wire 208 v orange-comm is this the common terminal wire?
Thanks for your help and advise.