Digital thermostat installation

Restcure · 09-20-2016, 10:55 AM

We did this in our last trailer and really liked it so we did it again, replacing our Coleman Mach analog unit in our new-to-use Rockwood 2701SS.

The Hunter 42999B we used last time doesn't seem to be available anymore so we used the Supco 45034, which is very similar. Last time I added a toggle switch for AC fan high-low; we rarely used it so this time I just clipped and insulated the low signal wire and connected the high.

A few photos...

The wiring diagram:

Overcast outside and dark in the trailer with all the power off, so...

Clipping the wires off the old thermostat:

New thermostat back plate installed and wired:

A nice fit. All systems tested and working properly. And now we have Celsius (a benefit I don't expect Americans or older Canadians would appreciate).

Full write up at Mods - Digital thermostat.

5picker · 09-20-2016, 11:02 AM

Is that a programmable thermostat?

If not, wondering why you didn't use the Coleman digital version?
It has the hi/low switch built in.

WFD · 09-20-2016, 01:30 PM

Quote:

Originally Posted by 5picker

Is that a programmable thermostat?

If not, wondering why you didn't use the Coleman digital version?
It has the hi/low switch built in.

I replaced ours with this exact Coleman thermostat...fast and simple, replaced wire for wire...quick and easy and it was an exact fit.....well priced on Amazon.

**Bama Rambler** · 09-20-2016, 01:55 PM

Quote:

Originally Posted by Restcure

We did this in our last trailer and really liked it so we did it again, replacing our Coleman Mach analog unit in our new-to-use Rockwood 2701SS.

Full write up at Mods - Digital thermostat.

Great post. Especially the pictures. Thanks for posting it.

Restcure · 09-20-2016, 02:34 PM

Quote:

Originally Posted by 5picker

Is that a programmable thermostat?

If not, wondering why you didn't use the Coleman digital version?
It has the hi/low switch built in.

Quote:

Originally Posted by WFD

I replaced ours with this exact Coleman thermostat...fast and simple, replaced wire for wire...quick and easy and it was an exact fit.....well priced on Amazon.

I didn't use that model for the following reasons.

I'm familiar with the installation and operation of the Hunter 42999B and, by association, the Supco 45034
We don't care about fan high/low
The Supco model displays ºC; I can't confirm that for the Coleman Mach
The Supco was less than half the price

Quote:

Originally Posted by Bama Rambler

Great post. Especially the pictures. Thanks for posting it.

My pleasure. Lots more pictures at the provided link.

5picker · 09-20-2016, 02:48 PM

Quote:

Originally Posted by Restcure

I didn't use that model for the following reasons.

I'm familiar with the installation and operation of the Hunter 42999B and, by association, the Supco 45034
We don't care about fan high/low
The Supco model displays ºC; I can't confirm that for the Coleman Mach
The Supco was less than half the price

Super!
Appreciate the feedback.
Great mod and a great write-up.