Dometic Penguin II Ceiling Assembly for Single Zone Installations

What is a Dometic Penguin II ceiling assembly?

The ceiling assembly is the interior portion of a Dometic Penguin II rooftop air conditioner installation. It mounts to the inside of your RV roof, seals the unit against the roof opening with a compression gasket, and houses the air distribution and control components. This collection covers single-zone installations, meaning the unit operates as a standalone AC controlled by one thermostat rather than as part of a multi-zone system. If you have a ducted single-zone setup, you may also want to check the Coleman Power Saver HP ceiling assembly for ducted installations.

Will this fit my Dometic Penguin II rooftop AC?

These ceiling assemblies are designed for Dometic Penguin II rooftop units configured for single-zone operation. Before ordering, confirm your rooftop unit model number (typically on a label inside the shroud) and verify that your installation is single-zone rather than multi-zone with a CCC2 controller. If your setup uses a wall thermostat with a non-ducted Penguin II, the Dometic ceiling assembly for non-ducted installations with wall thermostat is the correct match.

What is the difference between a ducted and non-ducted ceiling assembly?

A ducted ceiling assembly distributes cooled air through ducts built into your RV roof, with vents in multiple locations throughout the coach. A non-ducted assembly delivers air directly into the living space from a single grille at the unit itself. The two are not interchangeable. Your roof opening, duct layout, and original equipment dictate which type you need. Penguin II owners running non-ducted heat pump setups may instead need the FreshJet 5 with heat pump ceiling assembly for non-ducted installations.

Do I need to replace the roof gasket when installing a new ceiling assembly?

Yes. Any time the rooftop unit is loosened or lifted from the roof opening, the compression gasket between the AC and the roof should be replaced. Reusing a compressed gasket is the most common cause of leaks after a ceiling assembly swap. Inspect the mounting bolts and roof opening for damage while you have the unit apart, and torque the new bolts evenly per Dometic's installation instructions to seat the gasket correctly without overcompressing it.

How is this collection shipped, and is there a return window?

Ceiling assemblies ship via standard ground freight from the warehouse, with free shipping on orders over $100. Because these are configured for specific installation types, confirm your model number and single-zone configuration before ordering to avoid return shipping on a mismatched part. If you need help verifying fitment, text or call our team at 817-984-1852 with your rooftop unit model number and thermostat type, and we will confirm the correct assembly for your setup.