Dometic FreshJet Ceiling Assembly for Non-Ducted Installations with Wall Thermostat

What is included in the Dometic FreshJet ceiling assembly for non-ducted installations with wall thermostat?

This ceiling assembly kit includes the interior ceiling grille, return air filter, and wiring harness needed to pair a Dometic FreshJet rooftop air conditioner with a wall-mounted thermostat in a non-ducted RV setup. Air discharges directly through louvers in the ceiling assembly into the living space rather than through overhead ducting. Confirm your FreshJet rooftop model number before ordering to make sure the assembly matches your unit.

How do I know if I need a ducted or non-ducted ceiling assembly?

Look at how cold air enters your RV. If air comes out of vents in the ceiling assembly directly below the rooftop unit, you have a non-ducted system and this collection is the correct match. If air travels through overhead ducting and exits through multiple vents along the ceiling, you need a ducted assembly instead. Compare with the Coleman Power Saver HP ducted ceiling assembly if your rig uses overhead ductwork.

Is this assembly compatible with a wall thermostat instead of a ceiling-mounted control?

Yes. This version is wired specifically for use with a Dometic wall thermostat rather than an onboard ceiling control. The wiring harness supports remote thermostat communication, which gives you more accurate room-temperature readings away from the cold air discharge. If you are looking at a heat pump setup instead, see the FreshJet 5 with heat pump non-ducted ceiling assembly.

Will this fit a standard 14 x 14 inch RV roof opening?

Dometic FreshJet ceiling assemblies are designed to install over the standard 14 x 14 inch RV roof vent opening used by most rooftop air conditioners. Measure your existing opening before ordering, and verify the rooftop FreshJet model number for exact fitment. If your AC is not cooling efficiently, also check the roof compression gasket and consider adding a Coleman RV air conditioner soft start to reduce inrush current on startup.

How difficult is installation?

Installation is straightforward for a DIY-inclined RV owner with basic hand tools. The assembly mounts to the rooftop unit from inside the RV using the supplied hardware, and the thermostat harness connects to the existing wall thermostat wiring. Plan on 1 to 2 hours, and turn off shore power and the battery disconnect before starting. Text or call 817-984-1852 if you need help confirming the right assembly for your FreshJet model.