Replacement AC for 2008 Fleetwood Southwind With Coleman Mach

Updated 07/08/2026 | Published 07/01/2026

Products Featured in This Question

Furrion Chill HE RV AC System w/ Thermostat - 15K Btu - Ducted/Non-Ducted - Multi Zone - Black - R32

(14)

$1296.93

Bluetooth Remote Controller for Advent Air RV Air Conditioner Thermostat - R32

(1)

$50.40

Advent Air RV Air Conditioner System - 15,500 Btu - Single Zone - Ducted - White - R32

(533)

$833.00

Multi-Zone Controller for Furrion Chill RV Air Conditioner Setup - R32

(1)

$104.91

Furrion Chill HE RV Air Conditioner - 15K Btu - Ducted/Non-Ducted - Black - R32 - AC Unit Only

(13)

$1199.00

Replacement Air Distribution Box for Furrion Chill RV Air Conditioners - Electric Control - R32

(7)

$184.84

Furrion Chill Cube RV AC System w/ Air Distribution Box, Thermostat - 18K Btu - Ducted - White - R32

(124)

$1308.40

Question:

Hi. Our 2008 Fleetwood Southwind has two 2 Coleman Mach 15k units one has just failed and both are a ball of rust on the rv roof as we live in the coach near the Sea of Cortez. The existing units are cooling only and ducted with a single centerline duct. Would Furrion 15k HE units be a plug and play install? No heat pumps needed, but would like kit to include ceiling panel distribution box? and one thermostat to run both units. Thermostat should also operate existing original furnace. We would consider GE a/c units as well, if they are a better fit. Thanks for any info you can provide! Robert and Laura.

asked by: Robert L

Expert Reply:

Hey Robert, welcome back! The Furrion Chill HE RV Air Conditioner System # FR45TD will work as a replacement. However, you will need to replace the entire system. All of the new units use R32 refrigerant due to 2025 EPA regulations and they aren't backwards compatible. Also, the GE is single zone only right now so I would stick with the Furrion.

This kit comes with the air distribution box (ADB), multi zone controller, and a wall thermostat so it has everything you need. For the second unit you won't need the thermostat so you can piece it together with the rooftop unit # FR58TD, controller # FR53TD, and the ADB # FR68TD. The single thermostat will be able to run both units as well as your furnace.

expert reply by: Robin H

Furrion Chill HE
(click to enlarge)

Robert L.

7/6/2026

Hi Robin: And sorry I didn’t get back to you. We’ve given up on the Furrion Chill HE’s (too many thermostat issues) and no GE units. Trying to decide on a pair of Furrion Chill Cubes FR59TD (Ductless, full kits with remotes and ADB’s) OR TWO (2) Advent ADV9SR, again complete sets with ADB’s and thermostat. To be honest, our Fleetwood Southwind is 15 years old, with 100+k miles, and at my age (76) I don’t expect to see a lot more miles driving a motorhome. So yeah, it’s somewhat about the money. About a grand difference. But our biggest concern is running our LP furnace (Atwood) with a RVComfort.zc thermostat. We don’t expect to operate the furnace with anything but the existing thermostat, should we buy the Furrions, as that does seem to be a common problem with them. And we don’t really care if the new wall thermostat that comes with Advents runs our furnace. We have no problem having 2 thermostats, as in the new Advent for the a/c’s, and our existing thermostat just for the furnace. Am I missing something here? I’ve read countless reviews on your website, and read endless complaints about getting the old furnace to work, especially with Furrion, but somewhat with Advent as well. I guess its because everyone wants a clean, tidy installation, with one device operating everything… My wife is convinced once we drop the new a/c units in place, and start messing with the wiring, the furnace will never run again and we'll freeze to death! My other question involves ductless vs ducted. Our Southwind has a single north/south duct right down the middle. It’s a long run to the rear bedroom, as Fleetwood installed both Coleman a/c’s about 6 feet apart, in the front of the couch. My wife is certain that we’ll die of heat stroke in the bedroom if we don’t at least attach a plenum/hook up to the duct running the 8 feet or so to the back there, I’m thinking keep it simple and just close the dang louvres! But my option would be to order one ductless for up front, one ducted to the rear. Assuming I can get it hooked up to the rectangular ductwork. Sigh… Thanks for reading my rant. Robert & Laura.

Robin H.

7/6/2026

@RobertL the Chill Cube is nice but the thermostat working with the furnace is definitely not something you can count on. If you want the cooling power, efficiency, and low noise from the Chill Cube I would get the ducted version # FR69TD. You can skip installing the wall thermostat and just run it off the remote. This will have the power to push the air through the ducts and you can also open it up and dump air straight down from the ADB when you need to. If you want to save some money I would go a different route with the newer Advent Air # ADV99QR. This has a little more than the standard cooling power at 15,500 Btu. You will have two separate wall thermostats, and an optional remote # ADV67QR can be used to control them similar to the Chill Cube. A start capacitor # ACMSCKIT and heat strip # ADV34QR are also available.

Robertl

7/6/2026

@RobinH Thanks Robin. So as the Advent is a single zone a/c, and we need two, each would have its own wall thermostat? Dumb question, I guess. I don’t see any dual-zone Advents, which would mean both units would run off one thermostat, I guess…?? We would get the remote if we go that way. Would we need two remotes? Sorry for all the questions.

Robin H.

7/6/2026

@Robertl not a problem, this can get complicated and they're always changing things. They're all single zone so each would have its own wall thermostat. You can use a single remote. You could also run the Furrion Chill Cube off of a single remote but it is line of sight instead of Bluetooth so that can be more challenging.