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Old 09-20-2016, 10:55 AM   #1
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Digital thermostat installation

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.
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Old 09-20-2016, 11:02 AM   #2
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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.
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Old 09-20-2016, 01:30 PM   #3
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Quote:
Originally Posted by 5picker View Post
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.
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Old 09-20-2016, 01:55 PM   #4
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Quote:
Originally Posted by Restcure View Post
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.
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Old 09-20-2016, 02:34 PM   #5
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Quote:
Originally Posted by 5picker View Post
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 View Post
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 C; I can't confirm that for the Coleman Mach
  • The Supco was less than half the price
Quote:
Originally Posted by Bama Rambler View Post
Great post. Especially the pictures. Thanks for posting it.
My pleasure. Lots more pictures at the provided link.
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2013 F-150 FX4 7700# GVWR SuperCrew 3.5L EcoBoost 157" WB Max Tow 3.73:1
John, Dawn and Emily... and Bella the camping kitty

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Old 09-20-2016, 02:48 PM   #6
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Quote:
Originally Posted by Restcure View Post
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 C; 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.
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Old 09-20-2016, 02:56 PM   #7
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Super!
Appreciate the feedback.
Great mod and a great write-up.
Thanks for the kind words! I am a sufferer...

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John, Dawn and Emily... and Bella the camping kitty

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Old 09-20-2016, 03:17 PM   #8
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Thanks for the kind words! I am a sufferer...

Classic Note!
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Old 09-21-2016, 02:45 PM   #9
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Classic Note!
Stole!
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