Hunter thermostsat conversion problem
I decided to do the Hunter 42999B conversion on my TT as the Duo-Therm thermostat was like all the others. I have a Dometic Duo-Therm 13,500 roof air, and I THINK an Attwood furnace (if need be I can...
Forum Discussion
Just to clarify, the analog DuoTherm units (no longer available), switch grounds to activate the relays in the rooftop unit. Coleman /RVP units switch +12 volts to activate relays. Also, as I said, the orange wire turns the fan on, the blue toggles between high and low. If you just ground the blue, you will not get any fan operation.
