Thermostats

[salmonseaker]

I am trying to rig up a programmable 7 day t-stat to be able to have my heater turn on before I get home from work.


I have a duo Therm Comfort Control t-stat in my 5th Wheel. I have 4-wires.

Red= +12 volts

Black=

Green=

Yellow=


I found that I have 12 volts between the red and the green. I touched those together and blew out a fuse in the overhead A/C. After replacing it, I measured +12 volts between them. After trying to touch the +12 volts to the black or the yellow wire I could not get any response from a/c or heater. I am guessing this is a totally different system than a house type system. Since I can not find a programmable stat to replace it with, so I was wondering if could have a programmable battery run the Duo Therm, by making and breaking the +12vt supply? I could set up the Duo Therm for 70 degrees and then make and break the + 12 volt supply to the Duo Therm. Does anyone think this is feasible? Will the Duo Therm hold its temperature after power is removed and restored?

[Chris_Bryant]

The easiest way would be just install a new, separate thermostat for the furnace, running new the stat wires from the furnace itself. Keep the Comfort Control for the air conditioner.

[cavie]

you don't experiment with A/C systems. You go to Youtube and learn how to tom it right.

[Flute_Man]

Probably not possible. Because 12 V touch those other two data wire lines you might’ve taken out the board on top.As far as it retaining its memory if 12 V is removed you might just have to experiment and find out.

Remove the 12 volt line. Then reconnect and see if it retained it’s memory.