Replacement Air Conditioner For A 2009 Keystone Passport Ultra Lite 285RL Travel Trailer
Updated 08/15/2025 | Published 08/11/2025
Products Featured in This Question
Question:
I have a 2009 Keystone Passport Ultralite 285RL travel trailer. I need a new air conditioner. My current air conditioner is a Dometic 13,500btu. My trailer has a wall mounted thermostat and is ducted for air distribution. What AC unit should I be looking at?
asked by: Josh A
Expert Reply:
Hi Josh!
With the switch to the new R32 coolant, you will need to do a full replacement. None of the older R410a coolant parts will work with new systems, so it does make it a little more difficult, unfortunately.
We do have everything you need though, and I have two options listed below:
Advent Air RV Air Conditioner System - Single Zone - 13,500 Btu - Black - R32 # ADV85SR
Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - Black - R32 # ADV62SR
I included a 15k unit as it isn't much more than the 13.5k one and will do a better job of keeping your 2009 Keystone Passport Ultra Lite 285RL travel trailer cool. Either will work though and both can be used with Ducted or Ductless set ups.
Is the Dometic you currently have installed the original AC unit?
Product Page this Question was Asked From
Advent Air RV Air Conditioner System - Manual - 13,500 Btu - White - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 13500 Btu
- 115V
- Single Zone
- Rooftop
- Ductless
- White
- Advent Air
more information >
Continue Researching
- Video: Setting Up Your Advent Air RV AC - 2021 Keystone Passport SL Series Travel Trailer
- Search Results: ducted rv air conditioners
- Shop: Advent Air RV Air Conditioner System - Single Zone - 13,500 Btu - Black - R32
- Shop: Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - Black - R32
- Shop: Furrion Chill HE RV Air Conditioner System - Multi Zone - 13,500 Btu - White - R32
- Q&A: Recommended Supplemental AC Unit for 1996 Holiday Rambler
- Q&A: Looking For Replacement For Coleman Mach 13,500 BTU AC Unit
- Q&A: will Advent Air Conditioner ADV23SR Replace Old Duo Therm In 1978 5th Wheel?
- Q&A: Does The Advent Air RV Air Conditioner System ADV23SR Come With Everything Needed For Installation?
- Q&A: Replacement AC for Carrier Air V
- Q&A: Advent Air AC Unit to Replace Dometic Unit
- Q&A: Do I Have a Replacement AC Unit for a Dometic model B57915.711C0?
- Article: How to Choose the Best RV AC Unit (2025)
- Article: How to Troubleshoot Your RV Air Conditioner
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: How to Mount a Truck Bed Camper
- Article: How to Install an RV Awning From Scratch
- Article: How to Replace a Rubber RV Roof
- Article: Stability Control for Heavy Duty Vehicles
Josh A.
8/15/2025
Yes. It is the original unit If I order one of the options you listed, will I need anything else or will that be everything I need? Does it include thermostat?