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Finally! My Batteries and Inverter Now Run My AC!


Spike
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  • 2 weeks later...
22 hours ago, Southbird401 said:

How much trouble was involved in installing the Zamp portable hookup plug, or was that already wired into your system?

My RV tech, Mat, did the install, but I think that it was no sweat for him. Other aspects of the upgrade did pose some bigger challenges. 

As I stated in my original post, "I still have very little technical understanding about how this system functions and how the components and wiring fit together, so I will not be the one to answer many, if any, technical questions, but I know that on this forum, if you ask, you receive. There are some good posts on this forum involving the Houghton AC and related issues, so take a look around, and don't hesitate to submit your questions on this forum. Doing so paid off big time for me!"

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On 2/11/2022 at 3:35 PM, Spike said:

I finally achieved my goal of being able to run my AC off of my 2000-watt inverter and my new battery bank: 4 100ah Battle Born lithium batteries. 

This may be of interest: I just estimated the weight reduction by replacing my 4 6-volt AGM batteries with the Battle Borns, and replacing the Dometic AC with the Houghton. Our Ollie may have lost about 300 lbs (along with about 1 inch of height).

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  • 2 months later...

@Spike do you know any of the specifics regarding wiring the Emerson non-programmable thermostats? I have just replaced my Dometic AC  with the low profile Houghton. The AC is running great using the remote but I now need to rewire/install the Emerson Tstat.  Anyone that can provide wiring information would be greatly appreciated.

 

Thanks!

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25 minutes ago, wolfdds said:

do you know any of the specifics regarding wiring the Emerson non-programmable thermostats?

wolfdds--

As I wrote about my upgrade, my RV tech did all of the work, but I DID pass along this information from Minnesota Oli, who apparently got it from katanapilot. I hope it helps.

 

Here's a paragraph from Got Earplugs by katanapilot from My version of the Houghton AC install posted May 27.
As a sidenote halfway through the install I thought of a different way of doing the wiring for the thermostat. If a person replaced the LCD thermostat with a older manual style you could do away with the LCD relay board. If you look at the first picture that shows a group of wires that are in a black sheath, these are the control side of the wiring for the AC. In that group of wires there are two blue wires one with a white stripe. The one with the white stripe is hot 12 volts DC and the solid blue is the wire that goes to the furnace relay board. So re-allocate the existing thermostat wires by doubling them up ,two of them hooked to the solid blue and the other two hook to the blue with the white stripe. Then at the wall hook the two thermostat wires that are hooked to blue with white stripe to the power in on the new manual thermostat and the other two to the power out. The reason I would double them up is because of they're small gauge. This would do away with having to pull wires and using the LCD relay board. Also save you having to toggle through the unusable modes (heat strip, cool)  on the LCD thermostat to get to the furnace mode.
 image.thumb.png.eb71ea497bc4a7bd18775a0cca05bc49.png
 By re-allocate the existing thermostat wires and doubling them up ,two of them hooked to the solid blue and the other two hook to the blue with the white stripe. Now you are able to utilize wires that are already there saving you having to run new ones. Simply switch out the thermostat with one that does not need a control board.


 

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Congratulations, Spike. 😀

Charlie

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ALAZARCACOCTDEFLGAHIIDILINIAKSKYLAMEMDMA

Arizona | 2020 Oliver Elite II Twin bed Hull #617 | 2021 Ram 1500 e-Hemi 4x4

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1 hour ago, wolfdds said:

@Spike do you know any of the specifics regarding wiring the Emerson non-programmable thermostats? I have just replaced my Dometic AC  with the low profile Houghton. The AC is running great using the remote but I now need to rewire/install the Emerson Tstat.  Anyone that can provide wiring information would be greatly appreciated.

 

Thanks!

What year is your trailer? Mine is a 2021 and the wire colors were different than Minnesota Oil’s.  
FE06E6B6-42CB-450A-BCB6-B3F419B7A320.thumb.jpeg.51a3188a87cdf90f5b0523df0e2a95f9.jpeg

the green and blue wires on the left of the control box go to the heater.  These wires were spliced to the wires coming out of the heater.  You can find the splices right below the heater to identify which wires they correspond to.  See pic below.

AF79BDCC-179C-4217-9E4B-DEF4B8B76D51.thumb.jpeg.8c31742fdc044192d2dea795ea95f99a.jpeg
 

John

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John and Kim

2021 GMC Sierra 2500 AT4 6.6L Duramax 11350 GVWR  3048lb Payload

2021 Oliver Elite II.   Hull #887

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@Jps190 My trailer is a 2018. I could not find the spliced wires under the heater that you show in your picture. I am going to post a picture of the wires that were cut from the AC and the current thermostat wiring. @Minnesota Oli or anyone else can you confirm which wires to splice together to eliminate the LCD control and wire the simple Emerson Thermostat. Thanks.

The wires shown here pretty much the picture from Minnesota Oli with the exception the red connected to the white/red. Also he describes doubling up the wires from the thermostat but my thermostat only has three wires (yellow, red, green). It looks like only the green and yellow Tstat wires are in the wiring harness that is at my AC end. 

tstat1.thumb.jpg.def7128ef0ff3064f33abcde83a90de3.jpg

 

tstat2.jpg

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I believe the sold blue wire heads to your relay board on the furnace. I believe the blue with the white stripe is 12 volts hot. Check with a voltmeter to verify with fuse for furnace in place. If you touch those two wires together it will start the furnace, you will have to let the furnace time out before it will shut back down. If that checks out then you will splice one unused thermostat wire to blue and another unused thermostat wire to the blue with white stripe. Then back at where the thermostat wires come out of the wall you will use those two newly allocated thermostat wires to hook up the new single mode thermostat.

Hope that helps.

Paul

 

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  • 2 weeks later...

Here are the photos of the final wiring. I used the Red (spliced on AC side to white) and Yellow (spliced on AC side to orange) thermostat wires. As you can see in the photo the blue/white was the 12 v and the solid blue was the wire to the heater as @Minnesota Oliconfirmed. I checked with a volt meter and connected them at the AC side to confirm the heater would turn on. On the Tstat side the wiring is self explanatory from the picture. The only casualty in the install was blowing the 7.5 A fuse which is located under the dinette. After closing everything up and THEN putting in the new fuse so I would not blow it again everything is working great. What an excellent upgrade the low profile inside portion along with the reduction in operating noise was well worth it. BTW: if you are in the metrowest Boston, MA area and need any RV repairs; I used TRIC Mobile RV to do the heavy lifting to remove and replace the actual AC unit. https://tricmobilervrepair.com/ They did a fantastic job so I would definitely recommend them.

acside.jpg

tstat4.jpg

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  • 1 month later...

Hi Spike, is Matt ready to do the same thing on our #266? We just bought it back and want the same thing you were after.

We are in Oregon but will go anywhere to get this done correctly. 
 

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