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05-27-2016, 05:05 AM
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#1
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Junior Member
Join Date: Feb 2016
Location: Lewiston
Posts: 5
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Air conditioner regulator
First actual trip in a 2008 Jayco Bh! Was wondering if there is a way to have air conditioner stop running when it hits the correct temp or does it just run all the time? Just controlled on the ceiling.
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05-27-2016, 05:50 AM
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#2
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,078
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Unfortunately with that ceiling assembly the fan runs constant.
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05-27-2016, 06:08 AM
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#3
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Senior Member
Join Date: Sep 2015
Location: New York & Florida
Posts: 1,037
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You may be able to find a local electrician that can control the fan motor using a normally open relay powered by the compressor
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05-27-2016, 07:57 AM
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#4
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Senior Member
Join Date: Dec 2015
Location: Midlothian, Tx.
Posts: 145
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it becomes a hazard
Quote:
Originally Posted by JohnWedell
You may be able to find a local electrician that can control the fan motor using a normally open relay powered by the compressor
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With a 120V coil powering the relay, I doubt you would find anyone willing to do that.
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05-27-2016, 08:19 AM
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#5
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Senior Member
Join Date: Sep 2011
Location: King George
Posts: 2,761
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I kinda like the idea of the fan running like that. When it is on it circulates all of the trailer air back to the Air conditioner return filter and then blows out through the A/C duct work to all the areas again...
Not knowing anything about how all of that is wired in the ceiling unit but I suppose you can add a remote thermostat and fan controls. I think all of that wiring terminates into a terminal strip in the ceiling unit.
Must be some sort of disconnect as the top roof mounted part of the unit is installed first then the bottom part. They either are hard wired to a terminal strip or use some sort of interconnection cable/plug thing....
Roy Ken
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05-27-2016, 08:31 AM
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#6
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Senior Member
Join Date: Jun 2015
Location: Nashville
Posts: 470
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I think you can get a kit for most a/c's to convert to a wall mounted thermostat that would do what you want. Might check with the manufacturer of your particular a/c.
http://www.adventurerv.net/dometic-s...-pi-29695.html
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05-27-2016, 09:23 AM
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#7
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,078
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Quote:
Originally Posted by Hohenwald48
I think you can get a kit for most a/c's to convert to a wall mounted thermostat that would do what you want.
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Do-able, but challenging.
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05-27-2016, 09:25 AM
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#8
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Senior Member
Join Date: Sep 2015
Location: New York & Florida
Posts: 1,037
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Quote:
Originally Posted by CharlieD
With a 120V coil powering the relay, I doubt you would find anyone willing to do that.
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Don't want to start an argument but I'm licensed in commercial HVAC/R and it's done all the time, not saying it would be a good idea on his unit without looking at it, but it can be done. Also it would void the warranty if it has one.
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Traded: 2018 RAM 3500 DRW, 4X4, 4.10, 6.4 Hemi, Curt A20 hitch, Tire Minder
2018 North Point 315rlts with most of the options.
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05-27-2016, 12:21 PM
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#9
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Senior Member
Join Date: May 2016
Location: N.E. Ohio
Posts: 160
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Quote:
Originally Posted by CharlieD
With a 120V coil powering the relay, I doubt you would find anyone willing to do that.
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There are relays available that have AC rated contacts and DC rated coils. My understanding is the thermostats work off dc and you could use that to turn power on/off to the airconditioning unit itself.
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05-27-2016, 02:15 PM
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#10
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Senior Member
Join Date: Jun 2015
Location: Nashville
Posts: 470
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Quote:
Originally Posted by Grumpy
Do-able, but challenging.
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Why is that? I thought the kits were mostly plug and play. Maybe running the thermostat wire is what you are calling challenging? I can see where that might present a bit of a problem.
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05-27-2016, 02:20 PM
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#11
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Junior Member
Join Date: May 2016
Location: Lebanon
Posts: 11
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Gotta pic of which thermostat you have?
Sorry, I didn't see it was a ceiling controlled unit.
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05-27-2016, 03:55 PM
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#12
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Senior Member
Join Date: Dec 2015
Location: Midlothian, Tx.
Posts: 145
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not arguing either John, Just discussing
Quote:
Originally Posted by JohnWedell
Don't want to start an argument but I'm licensed in commercial HVAC/R and it's done all the time, not saying it would be a good idea on his unit without looking at it, but it can be done. Also it would void the warranty if it has one.
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I'm also a ac contractor ( 24 years here in Texas) all the RV ac units I have worked on with manual controls in the overhead section have no low voltage power. Most have a 2 speed fan motor also. Mainly I have worked on Coleman. Some of the ducted package units use 12 volt controls.
http://www.ebay.com/itm/Dometic-Duo-...9WcqdU&vxp=mtr
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05-27-2016, 09:33 PM
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#13
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Senior Member
Join Date: Apr 2016
Location: Memphis
Posts: 234
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Moving the AC controls to the wall is on my possible project list for our trailer for two main reasons - my wife cannot reach the controls and the fan running constantly. There is a thread on the forum with detailed instructions on how to do it yourself. I had not seen the controller kit listed here but yikes - over $600 is too steep for me. My wife can use the step stool.
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05-28-2016, 11:38 AM
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#14
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Senior Member
Join Date: Jun 2015
Location: Nashville
Posts: 470
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Quote:
Originally Posted by suzhou
Moving the AC controls to the wall is on my possible project list for our trailer for two main reasons - my wife cannot reach the controls and the fan running constantly. There is a thread on the forum with detailed instructions on how to do it yourself. I had not seen the controller kit listed here but yikes - over $600 is too steep for me. My wife can use the step stool.
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Do a little web shopping. Here's a kit for $75.
Dometic Single Zone LCD Control Kit w/ Thermostat White 3313189.0..
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05-28-2016, 01:09 PM
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#15
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,078
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Quote:
Originally Posted by Hohenwald48
Maybe running the thermostat wire is what you are calling challenging? I can see where that might present a bit of a problem.
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Exactly. Could be challenging since you also need to.pick-up a 12v power feed.
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05-28-2016, 01:09 PM
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#16
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Senior Member
Join Date: Nov 2011
Location: Where ever the boss says we're going.
Posts: 16,078
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Quote:
Originally Posted by Hohenwald48
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Won't work on a Coleman unit.
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05-28-2016, 05:37 PM
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#17
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Senior Member
Join Date: May 2016
Location: San Antonio
Posts: 181
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If it's a Coleman unit, then you'll need a new inside ceiling unit and a digital thermostat that is battery powered. Don't use an RV thermostat...much better/cheaper ones to be had. You'll also need to run the thermostat wire...which is probably the hardest part.
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05-29-2016, 04:10 PM
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#18
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Senior Member
Join Date: Jun 2015
Location: Nashville
Posts: 470
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Quote:
Originally Posted by Grumpy
Won't work on a Coleman unit.
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Never saw the post where the OP said he had a Coleman unit. Must have missed it. Can't believe the cost to upgrade a Coleman would be that much more expensive but I'm not going to do the research for the OP. I was just trying to make him aware that kits are available and it's not necessary to reinvent the wheel. It's pretty obvious that a Dometic kit won't work on a Coleman air conditioner. I assumed if he didn't have a Dometic unit he could figure that out without me having to say so.
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