Recommended Replacement For A Ducted Dometic RV Air Conditioner System

Question

Question:

I need to replace my air condition unit in my 5th wheel. My unit is ducted through vents inside my RV. Its mounted to the top of my RV. My A/C unit is not exposed inside the RV at all, it is controlled by a thermostat. What would be your recommendation for the type of A/C to replace this model #? My RV is located in a campground and uses shore power only, so a capacity probably would not be necessary. Would the Furion be the better choice?

asked by: THOMAS T

1

Helpful Expert Reply:

To replace just your rooftop condenser unit I recommend the Furrion Chill Replacement RV Air Conditioner # FR42PV. This unit is designed to work with ducted systems, like you currently have, and comes with wiring harness adapter that will make the wiring a simple plug and play installation. This will also allow you to retain use of your current thermostat so that you don't have to run any wires or make any new holes in your trailer.

It does already have a start capacitor installed on it which will help your unit run smoother to increase its lifespan. Even though you're going to be on campground shore power there is still a chance the the power pedestal can face a surge if everyone in the campground has their AC's running. The capacitor is going to take the edge off and make it easier to run.

Of the current options on the market I do recommend the Furrion as it's quieter, runs more efficiently.

expert reply by: Kevin C

1

Kurt

5/27/2024

I'm can't find the controle board Ina demetis ac with jaycommand. The only number I got 8530A140. Where can I find this

Kevin C.

5/28/2024

@Kurt Dometic will some times hide the controller inside of the rooftop unit. In the attached video below you can see where I ran into this same issue and then removed and mounted it in the same place on the new unit I was installing. You'll most likely need to remove the plastic shroud and then the second metal cover on the unit to find it.

Helpful Links

tv-review-asa-coleman-adapter-wiring-kit-for-advent-rv-air-conditioner-accolkit.aspx

Paula L.

10/25/2024

Will this Furion model, FR42PV, work with any thermostate? Our 5th wheel has the dometic CCII thermostates.

Kevin C.

10/25/2024

@PaulaL The Furrion Chill HE Replacement RV Air Conditioner # FR42PV would plug into the controller for the Dometic system which would be what communicates with the thermostat so you shouldn't have an issue. You will need to check that your controller is mounted with the air distribution box in the ceiling and not inside the rooftop unit though. If it is you'll need to see if you can relocate it in to the space where the air distribution box sits or replace the entire system.

Paula L.

10/26/2024

@KevinC Like Thomas T above, the A/C units in our 5th wheel are not exposed inside the RV at all, there is no distribution box, it is ducted only. I believe when we changed one of the units 5 years ago the controller was in the A/C unit, but we might be able to move it, we will have to check that.

Kevin C.

10/27/2024

@PaulaL

Dick

7/6/2025

I am looking to replace my 2017 Forest River Gray Wolf Ltd w a single dometic 13500 ducted with a more efficient ac that will be a non modification needed fit drop in w my thermostat and would you recommend any other adds

Robin H.

7/7/2025

@Dick everything is switching to the new R32 refrigerant and all of our old R410A stock for Dometic setups is gone. The new parts aren't backwards compatible so you will need a complete system. Even if this switch wasn't happening, we no longer recommend swapping the AC unit unless it is the exact same model due to compatibility issues. The most efficient replacement out there right now is the new Furrion Chill Cube. This uses a variable speed compressor so it is unmatched in efficiency, cooling power, and is incredibly quiet. Since you have a ducted setup you need the # FR99TD (White) or # FR39TD (Black). This comes with a new ADB and a remote which acts as the thermostat.

Helpful Links

tv-mdemo-vendor-lippert-rv-ac-fr99td.aspx

Dick

7/7/2025

I looked at those initially and started a chat with your chat line ,my thermostat has the furnace with it so your chat recommended the following with a heat pump . I assume the control box mounts inside with the distribution box next to it? GE Appliances Deluxe Plus RV AC System w/ Heat Pump - Ducted - 15,000 Btu - White - Complete System

Jameson C.

7/7/2025

@Dick That GE solution would be a really solid option.

David

9/6/2025

I have a soft start installed in my dometic. Would i remove it and install in the furion to keep surge amps down?

Kate F.

9/8/2025

@David You can most definitely take the soft start # SSR54FR out of your Dometic to install in your new Furrion. What Furrion did you go with?

Tom

8/17/2026

Kevin will this replace my old dometic ducted b57915.71150 2018 class c one air conditioner only will the plugs match up and how about the wires, will my old thermostat work.

Jerry B.

8/18/2026

@Tom Your Dometic Brisk Air II B57915.71150 is an R410a unit, and that refrigerant has been discontinued and replaced with R32. R32 units are not compatible with R410a components and vice-versa, so if you're needing a new rooftop unit, you'll have to get a full system. The comparable Furrion replacement system for your setup is Advent Air RV AC System w/ Wall Thermostat # ADV62SR

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Answer 1

Hey Russ! At this point there are no direct replacements for the old AC in your daughter's Wildcat. Everything has switched to the new R32 refrigerant following the 2025 EPA regulations so complete replacement will be required. If you want the…

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Answer 2

Hey Neil. The 18,000 Btu Furrion Chill Cube RV Air Conditioner item #LC34DX fits a 14-1/4" x 14-1/4" cutout which is pretty standard on RV's. If you meant to write Dometic instead of domestic then yes it'll fit in your existing…

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Answer 3

Hey Mike! The Advent Air RV Air Conditioner #ADV74QR is only designed to work with an R32 setup. Your old unit is going to be R410A, so the old components won't be compatible. Since everything moved to R32 last year due to EPA regulations a…

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Answer 4

Hi Sherrill! The Advent Air 13.5k RV Air Conditioner #ADV96SR have a decibel rating of 76, so roughly the sound of a fairly loud vacuum cleaner. One thing to also be aware of, this is only the roof top unit and it does not include the other…

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Answer 5

Hello Chris, thanks for reaching out. Sadly, the ACM150B has been discontinued and is no longer available. With all of the new units going to the R32 refrigerant, the best option for replacing your Dometic 936000681 will be a full AC system…

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Answer 6

Hey Doug welcome back! To replace your Dometic Duo-Therm 57915.331, I recommend the Advent Air RV Air Conditioner System item #ADV92SR in white or item #ADV62SR in black. There's no way to just replace your AC unit, you'll need to replace all…

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Answer 7

Hey Hayato, the SoftStart kit part #SSR54FR that you referenced would be what you are looking for. This is compatible with the Furrion AC unit you have now and will do a great job reducing amperage draw when firing up the AC unit! How do you like the…

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Answer 8

Hi Jim; I'm sorry to say the GE Appliances Low-Profile RV AC #GE43ZR cannot be used to replace your Dometic Penguin II. I'm sure your existing AC is an old R410A unit. Everything switched to the new R32 refrigerant this year to follow the new…

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Answer 9

We have recently learned that the 2012 Ford Fusion cannot be flat towed with all 4 wheels on the ground. Front wheel drive models can be towed on a tow dolly, such as #RM-2050-1. But all wheel drive models cannot. They would have to be placed on a…

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Answer 10

The Advent Air RV Air Conditioner - 13,500 Btu - White Item #ACM135 you were looking at is just the rooftop unit so you would actually be needing the Advent Air RV Air Conditioner w/ Air Distribution Box and Start Capacitor - 13,500 Btu - White Item…

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Answer 11

Hi Arik; a 13,500 Btu unit like the #ADV96SR you looked at will be able to handle your car trailer. The Advent Air units do a great job without breaking the bank so I do recommend them. Unfortunately, none of our air conditioners are American made.…

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Answer 12

Hello Mike, Great question. The RV air conditioner went from the R410a to the R32 this year. The new R32 parts are not compatible with the old R410a parts. The R32 is more efficient making it a win-win for the environment and the consumer. The…

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