Coleman Ducted AC Conversion Kit | 9330A5221

If you're pulling an old ducted rooftop air conditioner off your RV and putting a Coleman ducted unit up top, the opening and the ductwork underneath won't line up on their own. Different brands run their plenum and divider layout differently. This conversion kit is the bridge. It gives you the plate, frame, and divider pieces that let a Coleman ducted rooftop AC or heat pump sit down clean over a hole that used to hold a different brand's unit.

Here's what you get in the box: a plenum plate, a mount frame, a divider flange, the divider itself, the mounting hardware, and printed installation instructions. Those are exactly the parts that don't carry over when you switch brands. The roof opening itself usually stays the same, but the way conditioned air gets split between your supply ducts is brand-specific, and that's what this kit sorts out.

It's a job most handy RV owners can do in an afternoon. You'll be up on the roof and inside the coach, so plan for two sets of hands if you can. Follow the included instructions in order. The divider and divider flange set how the air splits between the front and rear runs, so getting those seated right is what makes the new unit actually push air where you want it.

One thing to be clear about: this is for ducted systems, the kind that feed air through ceiling ducts rather than dumping it straight out of the rooftop shroud. If your rig runs a non-ducted unit that blows through a ceiling assembly, this isn't the kit you need. And it's a conversion kit, not the air conditioner itself. You'll still need the Coleman ducted unit and, depending on your setup, a ceiling assembly or thermostat to finish the swap. Not sure what your coach is running? Send us your current model and we'll help you sort out the full parts list before you order.