Replacement AC System for a Dometic Penguin II 11,500 Btu Air Conditioner
Updated 09/12/2025 | Published 08/22/2025
Products Featured in This Question
Question:
Hi... I have a Hymer Aktiv with a Dometic Penguin II 11,500 btu non-ducted air conditioner with Dometic wall thermostat. What would be a suitable like-for-like easy to install replacement air conditioner to update the current Dometic low-profile unit? Thanks...
asked by: Jeff S
Expert Reply:
Hey Jeff, thanks for the information! To replace your Dometic Penguin II AC you'll need to replace the entire system. We've found recently that the harnesses and connectors from different manufacturer's don't work well with each other and you'll void the warranty by mixing and matching them. Additionally, the new R32 refrigerant, which is far more efficient, also makes AC components made before 2025 incompatible with the newer compliant units.
For a replacement AC system, I recommend the Advent Air Low Profile RV Air Conditioner System item # ADV52SR in Black or item # ADV65SR in white. These are 13,500 btu low profile AC systems that include an air box, start capacitor, and thermostat. The AC measures 31" long x 24-15/16" wide x 10-1/8" tall so it'll work great on the roof of your Hymer Aktiv and you'll be able to use your existing wiring and cutout.
What year is your motorhome?
(click to enlarge)
Jeff S.
9/12/2025
2018 Aktiv 1.0 on a 2017 Promaster 2500 chassis.
Jerred H.
9/12/2025
Product Page this Question was Asked From
Advent Air Low Profile RV Air Conditioner System - Single Zone - 13,500 Btu - White - R32
- RV Air Conditioners
- Complete AC System
- Cool Only
- 13500 Btu
- 115V
- Single Zone
- Rooftop
- Ducted
- Ductless
- White
- Advent Air
more information >
Continue Researching
- Search Results: rv air conditioners
- Q&A: Replacement AC Unit for Dometic Air Conditioner
- Search Results: adv79fr
- Search Results: dometic penguin ii
- Search Results: 115v rv air conditioners
- Search Results: dometic rv air conditioners
- Shop: Advent Air RV Air Conditioner - 13,500 Btu - White - R32
- Q&A: Can Advent Air RV AC Unit Replace Dometic
- Shop: Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32
- Shop: Advent Air Low Profile RV Air Conditioner System - Manual - 13,500 Btu - White - R32
- Shop: Electric Heat Strip for Advent Air RV Air Conditioners - 5,500 BTU - R32
- Shop: Advent Air Low Profile RV Air Conditioner - 13,500 Btu - White - R32
- Shop: Advent Air Low Profile RV Air Conditioner System - Single Zone - 13,500 Btu - White - R32
- Q&A: Does the Air Blow Forward or Rearward on GE Appliances Low Profile RV AC Unit
- Q&A: Will etrailer Electric Trailer Jack e55ZV Work On 1979 Airstream Excella 500
- Q&A: Low Profile Replacement AC for 2018 Forest River Travel Trailer
- Q&A: Looking For A Replacement AC Unit For My Dometic Duo Therm
- Q&A: Replacement AC Unit for an Airxcel 48253C966
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: How to Choose the Best RV AC Unit (2025)
- Article: The 5 Best Trailer Drop Hitches You Can Buy
- Article: 5 Things to Know About Weight Distribution Hitches
- Article: How to Troubleshoot Your RV Air Conditioner
- Article: Gooseneck to 5th Wheel Adapters
- Article: How to Measure Your Trailer Wheel Bolt Pattern
Jerred H.
9/12/2025
Hey Jeff, did you have a chance to check the year of your Hymer Aktiv? I'm asking so I can continue assisting you with finding the best replacement option for your air conditioner.