Second AC Unit Recommendation for 2018 Grand Design Reflection 367 BHS

Question

Question:

I have a 2018 Grand Design Reflection 367 BHS - It is pre wired for a second AC unit. I would like to add a 15K low profile unit, but I need help finding a complete unit everything I need including the thermostat. Thank you

asked by: James

0

Expert Reply:

Hey James, we have the Advent Air Low Profile RV Air Conditioner System Kit part # ADV82SR which covers everything you are looking for as it is a 15k system that is low profile and comes with the lower air box as well as a wall thermostat. What is your other unit?

expert reply by: Jameson C

0

Jameson C.

9/29/2025

Hey James, did the Advent Air Low Profile AC System Kit work out for your Grand Design Reflection? I'm asking because your experience could help others looking to upgrade their AC units.

James

9/29/2025

@JamesonC Thanks for checking, we haven't yet made the jump, in our old coach we were used to Coleman Mach units and in this coach it has 1 domestic unit, not sure yet what to do.

Jameson C.

9/29/2025

@James The Advent will be super similar to the Dometic.

Answer 1

Since you're only wanting to control the heat on your Suburban furnace you'll want to use the Dometic Mechanical Thermostat #DMC54FR. This is one of the analog thermostats you were looking at and the reason this is what I recommend is because…

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Answer 2

Hey Andrew! The Thermostat for Furrion Chill Cube Ducted RV Air Conditioners item #LC74DX does not work with the ductless systems. For a ductless Chill Cube like item #FR59TD, you will need to use the Ductless Air Distribution Box for Furrion Chill…

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Answer 3

Hey Layne! The Furrion Chill Cube is rated at 60 decibels. To put that into perspective, that is about as loud as your typical conversation or a dishwasher. It is extremely quiet, to a point it is hard to believe. This feature, along with the…

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Answer 4

Hey Matt, Furrion typically has 4 wires running to their thermostats and the Chill Cube Thermostat #LC74DX is no exception. The harness you see with the thermostat would plug into the Chill Cube's controller and has 4 wires to extra wire to to…

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Answer 5

Hello Mark, thanks for reaching out. I checked with my contact at Lippert and I was told they do not have a reference sheet for the Furrion Chill Cube error codes. They did say that "H3" would be a new error code that they have not seen…

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Answer 6

You will need a battery isolator, like Battery Isolation Solenoid, part #PK5231201, if you plan on leaving the trailer connected to the truck when the truck is off. If you unplug the 7-Way, the trailer battery cannot drain the truck battery. If you…

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Answer 7

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 8

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 9

Hey Jon; I was actually just talking to Furrion about heat options for the Chill Cube yesterday (1/21/2025). At this time, the only way to have heat with this unit is through a furnace on a ducted setup. The Furrion Chill Cube RV AC w/ Air…

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Answer 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

Hello Sam; that is a great question! I reached out to Furrion and you will be able to use the Furrion Chill Cube #FR69TD (white) or #FR49TD (black) with your furnace. However, the remote is not capable of operating the furnace at this time. Also, we…

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Answer 12

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Second AC Unit Recommendation for 2018 Grand Design Reflection 367 BHS

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