Replacement AC System for a Dometic Brisk 99516761

Updated 06/06/2026 | Published 05/30/2026

Products Featured in This Question

Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - Black - R32

(225)

$936.64

Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32

(225)

$936.64

Question:

Hello I have always 2010 heartland sundance xlt 5th wheel with Dometic ac unit model 99516761, it is a ducted system and ceiling flter cover and vent along with 6 pin connector. Looking to replace it with a new 15000btu system, plug and play. What do you recommend? Thanks

asked by: DOUGLAS W

Expert Reply:

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 your AC system components. This is due to the EPA changing the regulations on the refrigerant in the AC units at the beginning of 2025. They've been upgraded to R32 and your Dometic Brisk has the now obsolete 410a refrigerant. None of the 410a components are compatible now with the newer systems. You will be able to use the existing wiring to power the AC system and connect the new thermostat if yours has one.

The Advent Air RV Air Conditioner System item # ADV92SR in white or item # ADV62SR in black are 15,000 btu systems that include an air distribution box that works in both ducted and ductless orientations. These systems also come with a start capacitor that stores up energy. It's going to really help when the compressor kicks on and needs to draw excess power.

Does your current AC system have a thermostat? I'm just trying to dial in the right system for you. We've got quite a few replacement options and I understand swapping out everything to replace an older AC unit wasn't what you had in mind.

You can add this information, along with any other questions you have, where it says Add Comment.

expert reply by: Jerred H

ADV62SR
(click to enlarge)

Douglas W.

6/4/2026

Jerred H Yes my system has a thermostat and air distribution bos for ducted system. I don't mind changing everything but I want everything here when I start, if you know what I mean. We are full time rvers stationed in South Texas right now. Doug

Richard D.

6/5/2026

@DouglasW I just ordered one of these at the end of April and received everything all at once. There were two boxes, one had the Air Conditioner and the other box had the air distribution box, the thermostat, and the soft start. Richie

Jerred H.

6/6/2026

@DouglasW I know exactly what you mean! The Advent Air item # ADV92SR in white or item # ADV62SR in black come with everything you need to replace your existing AC unit, thermostat, and ducted air distribution box. These are complete kits. You'll just need to remove your Dometic parts and reuse the existing wiring.

Douglas W.

6/6/2026

@JerredH Thank you very much! Doug