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Old 09-19-2018, 05:33 AM   #1
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Thermostat replacement

Hey all, just a quick question about thermostat replacement.
I wanted to replace my analog suburban thermostat for a digital one.
My wife often adjusts the heat in the trailer, and more often than not it's either freezing cold or the seventh circle of hell.
I wanted a digital one installed so we could adjust the temperature more accurately and easily. Just wondering if I needed a specific type of digital thermostat or will any type suffice.
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Old 09-19-2018, 06:58 AM   #2
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I assume that since it's a suburban that it's a heat only tstat?

If so, then you need to get a digital model that's compatible with millivolt systems and runs off batteries. That will work for your furnace.
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Old 09-19-2018, 02:36 PM   #3
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Yep it needs to run off batteries, not power from the furnace ('cuz there isn't any).

I think this programmable (very handy) Hunter 44157-5 will work but try to find the manual. I have a similar model in my camper modified to control the two speed fan.

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Old 09-19-2018, 03:09 PM   #4
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I have a Walmart digital thermostat that I installed on my last camper. I had to install a separate switch to toggle between low and high fan speed for the air conditioner.

I think a non-RV digital that is battery powered is the most cost effective optin out there. However, if you get one, DO NOT get one that requires the thermostat to be removed form its mount plate to replace the batteries. I have found that this style fails because male pins that are connected to the female electrical connector on the mount fail over time due to weak solder welds.
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Old 09-19-2018, 09:38 PM   #5
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I used a Honeywell RTH111B on my Roo 19. Your Suburban should only have two wires. Wire one to the R and one to the W on the Honeywell and you should be good to go.

Of course, the cooling function of the T-stat won't do anything, since your AC isn't controlled by the T-stat.
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Old 09-24-2018, 10:23 AM   #6
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I replaced my Coleman Mack analog with a Coleman Mack Digital.
Coleman 83303362 Thermostat
Wire for wire the same as I had. Some RV's don't have the Hi/Lo fan speed but mine did.
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Old 09-24-2018, 10:32 AM   #7
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Blast-from-the-Center AC units seldom have more than simple twist dials on the overhead unit and no control from the wall thermostat. The ducted-type are controlled by the wall thermostat as is the propane furnace so a Heat/Cool thermostat comes from the factory. Aftermarket thermostats are getting more common with high/low fan switches than they were when I had to modify a digital thermostat for my Roo 10 years ago.

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Old 09-24-2018, 11:37 AM   #8
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The only complaint I had about the thermostat was that it isn't backlit. But I guess that's roughing it!
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Old 09-24-2018, 03:53 PM   #9
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Quote:
Originally Posted by rlh1957 View Post
I replaced my Coleman Mack analog with a Coleman Mack Digital.
Coleman 83303362 Thermostat
Wire for wire the same as I had. Some RV's don't have the Hi/Lo fan speed but mine did.
OP won't have one of these. He doesn't have a ducted AC; his AC is controlled by the controls on the ceiling, not by the thermostat.

He has something like this:

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2012 Roo19 - hybrid (2012-2015)

2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado 1500 Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10
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Old 09-26-2018, 07:12 AM   #10
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Quote:
Originally Posted by rockfordroo View Post
OP won't have one of these. He doesn't have a ducted AC; his AC is controlled by the controls on the ceiling, not by the thermostat.

He has something like this:

Yup, except mine is black. I'm going to look into these suggestions and see what I can come up with.
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