Replacement AC for Dometic B57915.711C0
Updated 05/21/2026 | Published 05/18/2026
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Question:
I have a Dometic B57915.711C0and I’m looking to replace it. I’ve researched online and it seems the Advent ADV84QR is a direct replacement. I have a ducted into with a wall thermostat so I’m looking for something compatible. Thanks Jon Buehler
asked by: Jonathan B
Expert Reply:
Hey Jonathan! The Dometic B57915.711C0 you have now is an old R410A unit. The Advent Air # ADV84QR is an R32 unit which means you will need a complete replacement with an air distribution box (ADB) and thermostat.
Everything switched to R32 in 2025 due to EPA regulations. Unfortunately. none of these new AC systems are backwards compatible with the R410A parts. To replace your Dometic you need one of the following:
-Advent Air RV Air Conditioner System - Single Zone - 15,500 Btu - White - R32 # ADV99QR
-Advent Air RV Air Conditioner System - Single Zone - 15,500 Btu - Black - R32 # ADV69QR
Both come with an ADB and wall thermostat, and are compatible with ducted and ductless setups. The only thing you need to do is choose the color.
What kind of RV or trailer do you have?
Product Page this Question was Asked From
Advent Air RV Air Conditioner System - Single Zone - 15,500 Btu - Black - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15500 Btu
- Standard Height
- Single Zone
- Rooftop
- Ducted
- Black
- Advent Air
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