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

Reply

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

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Paula L.

10/25/2024

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

Reply

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.

Reply

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.

Reply

Kevin C.

10/27/2024

@PaulaL

Reply

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

Reply

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

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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

Reply

Jameson C.

7/7/2025

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

Reply

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?

Reply

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?

Reply

Answer 1

Hey Cory! Advent has recently come out and stated that their AC units are not as compatible as they thought they were. Additionally, they have added that any the warranty of their components, like the item #ASA86YR, will be voided if connected to a…

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Answer 2

Hey Cody. We do not have any Dometic replacement AC units or compatible systems that you could use. In order to replace your AC and add a heat pump you'll need to purchase a new system. I have a couple of options for you but none of them are…

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Answer 3

Yes, it will Mac. The GE Appliances Deluxe Plus RV AC System w/ Heat Pump item #GE85ZR will work with your existing furnace and can be controlled by the included thermostat. What kind of furnace do you have?

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Answer 4

Hey Daniel. The only setups we have that include a heat pump also require the use of an air distribution box. They are the GE Appliances Deluxe Plus RV AC System w/ Heat Pump item #GE85ZR, in white or item #GE75ZR, in black. These are both 15,000 Btu…

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Answer 5

Hey Jen, thanks for reaching out! The AC world has been shifting a bit this past year because of a new regulation that says all ACs from here on out need to use R32 refrigerant. Because of this, a lot of the older AC units have become obsolete. The…

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Answer 6

Hey Annabelle thanks for the information. I have a solution for you. However, we have found out in the last year that the Advent replacement options either don't work at all, are a mess to rewire because the pins don't line up with the…

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Answer 7

No, it can not David. The Advent Air Low Profile RV Air Conditioner item #ADV58SR has the new R32 coolant in it, which is not backwards compatible with any components made before 2025. Additionally, we found out at the end of last year that the…

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Answer 8

Hey Steve, We do not carry the Dometic Duo-Therm Ac Units. All of our RV Ac units are no longer compatible with other brands so you will need to replace the full AC system in your trailer. A solid system I recommend is the Advent Air 13,500 btu…

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Answer 9

Hey Scott, you would need to go with the Furrion Chill HE part #FR92PR instead since you would need to replace your entire setup as there isn't a way to reuse any of your current components and go to the Furrion as we have found regardless of…

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Answer 10

Thanks for all the detailed information! For a 15,000 BTU AC Unit to replace your Dometic B57915.711C0, you will want the Advent Air Replacement RV Air Conditioner for Dometic Setup item #ACDOM150B in black or item #ACDOM150 in white. These are…

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Answer 11

If you're wanting to replace just the rooftop unit then you'll first want to remove the cover of your air distribution box to take a look at the controller. The controller will have a wire harness that hangs down from the rooftop unit and…

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Answer 12

Hi Adam; for a plug and play replacement that is compatible with your Dometic setup I recommend the Furrion Chill HE. This will work with your existing thermostat and air distribution box so you only have to swap out the AC unit. You can choose from…

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