Replacement AC Unit For a Airxcel 59254C866 15,000 BTU Ducted Unit
Updated 04/01/2026 | Published 03/21/2026
Products Featured in This Question
Question:
Will this unit replace my airxcel 59254C866 15,000 BTU ducted unit? 2023 wildwood by forest river vbud29 extreme.
asked by: Darrell
Expert Reply:
Hey, Darrell.
Thanks for sharing the model number of your Airxcel AC. Based on that number, your AC is using the now phased out R-410A refrigerant. Because of that, you can’t just replace the main AC unit, you’ll also need a new air distribution box and thermostat. The kit you will need instead is the Advent Air RV Air Conditioner System # ADV92SR. This is a complete system and will come with everything you need, and it will work with your ducted set-up.
I know it’s not ideal to have to replace more than just the main unit, but when it became mandatory for all RV ACs to use R32 refrigerant, nothing is cross compatible and you can’t mix old and new parts.
What trips are you prepping the camper for?
(click to enlarge)
Product Page this Question was Asked From
Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 15000 Btu
- 115V
- Single Zone
- Rooftop
- Ducted
- Ductless
- White
- Advent Air
more information >
Continue Researching
- Shop: Air Distribution Box w/ Wall-Mounted Thermostat for Advent Air RV Air Conditioners - White - R32
- Video: Setting Up Your Advent Air RV AC - 2021 Keystone Passport SL Series Travel Trailer
- Q&A: Troubleshooting New RV AC Unit Where Compressor Goes Off and On
- Shop: Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- Shop: Advent Air RV Air Conditioner - 15,000 Btu - White - R32
- Video: Review of Advent Air RV Air Conditioners - 15000 BTU White RV Air Conditioner System - ADV92SR
- Q&A: Replacing Airxcel AC on 2012 Durango 1500 5th Wheel
- Video: Review of Advent Air RV Air Conditioners - 15000 BTU White RV Air Conditioner Only - ADV86SR
- Shop: Furrion Chill HE Replacement RV Air Conditioner for Coleman Setup - 13,500 Btu - White
- Q&A: Looking For Driect Replacement For Airxcel Model 48254C866 On 2015 Flagstaff 5th Wheel
- Shop: Advent Air RV Air Conditioner System - Single Zone - 13,500 Btu - White - R32
- Video: Review of Advent Air Air Distribution Box With Wall Mounted Thermostat - ADV98SR
- Q&A: Advent Air AC Unit to Replace Dometic Unit
- Q&A: What To Do If Old AC Unit Is Hardwired Into Camper And Does Not Have A plug?
- Q&A: Direct Replacement for Carrier Air V RV Air Conditioner
- Q&A: Replacement AC for Dometic/Atwood AC-1361 in 2005 Forest River Wildcat 24RL
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Thank you!
- Article: Brake Controller Installation: Starting from Scratch
- Article: Ram Trailer Tow Prep Package
- Article: Trailer Wiring Diagrams
- Article: Converting Your RV Water Heater to Tankless
- Article: Our Team Picked The Best Camping Gear of the Year - Here Are Their Top Choices
Darrell
4/1/2026
Thank you for helping. That unit fit perfectly. The wiring diagram for the thermostat needs to be adjusted to color coding of factory wiring, other than that it was straight forward and easy install.