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 and other brown wires that go to a 24 v relay or a secondary transformer... the green wire which is the fan is connected to this secondary transformer or relay... not sure..
My question is.... Should I connect the C common wire from the thermostat to this brown 24 V wire?
the transformer also on the label says... black wire 240 v blue wire 208 v orange-comm is this the common terminal wire? Should I connect the C common wire from the thermostat to this orange comm wire?
thanks for your help and advise.