Plus AND Minus 12v from AC to Thermostat
I have a Dometic A/C and a Dometic single zone thermostat. The thermostat requires plus AND minus 12 volts. The schematic of the A/C control box indicates that the plus AND minus 12v come from the pow...
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Thanks all. I think I got it figured out. The control box in my Dometic A/C is a Dometic 3313379.000 When the 12 volts from the converter are plugged into this unit, I think there is a passive resister network that divides the 12 volts and sends it out to the thermostat as a -3.8 volts and a +8.2 volts. So the thermostat is happy with this.
