Is There An Adapter For A Carrier AC That Allows Keeping The Existing Lower Portion?  

Question:

Expert Reply:

Hey Jeff, thanks for reaching out. No, we don't. If you are needing to replace a Carrier AC unit from 2007, you'll need to replace the entire AC system - rooftop unit, distribution box and thermostat. There is no adapter for that. Main reason being in 2025, the entire RV AC industry switched over to a new R32 refrigerant. These new R32 units are not backwards compatible with old AC systems, so the whole thing will need to be replaced.

That said, for a replacement AC, I recommend the following:

- Advent Air RV AC System w/ Wall Thermostat - 15,000 Btu - Ducted/Non-Ducted - White - R32 # ADV92SR

This is a complete AC system, so you get your rooftop unit, distribution box, start capacitor and thermostat. It will work with both ducted and ductless systems.

Is your RV ducted or ductless? Does it have one unit, or multiple?

expert reply by: Jesse M

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Advent Air RV AC System w/ Wall Thermostat - 15,000 Btu - Ducted/Non-Ducted - White - R32
(click to enlarge)

Jeff J.

7/6/2026

Thank you. My rv has two units. I am replacing the one that is not connected to the heat. Id prefer a unit that does not require running wires to a thermostat and is Bluetooth operational. The ceiling is pretty high at the ac location. Low profile unit would also be nice if the price is not crazy.

Jesse M.

7/6/2026

@JeffJ Ok gotcha. If you don't want to run thermostat wires, the Furrion Chill Cube # FR59TD uses a wireless remote, but there aren't any Bluetooth or low-profile options. We have low-profile ACs but you would need to either wire in a thermostat or use a manual distribution box with controls on the ceiling.

Jeff J.

7/7/2026

@JesseM Would the 18k btu draw too many amps compared to my old 13.5 unit? Is there a 15k btu version?

Jesse M.

7/7/2026

@JeffJ So the 18K Chill Cube only pulls 15.5 amps max which is pretty low considering the cooling capacity. That's running at full blast too. In our tests here at our shop the draw was closer to 11 or 12 amps which is less than most 13.5 BTU units. You don't get those big amp spikes on startup either.