How To Install The Advent Air RV Air Conditioner System With ACTH12 Thermostat

Question

Question:

I installed a advent acm135 rooftop split unit on my trailer i have a advent arth12 thermostat will this work on my unit if so how do u wire it up

asked by: Brian A

1

Helpful Expert Reply:

If you have the ACTH12 then you should also have the Air Distribution Box # ACRG15 which will have a control box for your wiring from the rooftop unit # ACM135 and the thermostat. This air distribution box and thermostat will wire up exactly the same as the standard air distribution box # ACDB.

I've attached the wiring diagram for each part of this system to help you with this installation.

expert reply by: Kevin C

1

ACTH12 Wiring Diagram
(click to enlarge)

Advent Air Wiring Diagram
(click to enlarge)

Leo

7/16/2024

I did the ACRG15/ACTH12 upgrade several years ago and love it, especially for controlling the AC. My question is this: Does Atwood or another RV equipment manufacturer make a Smart Thermostat to upgrade the ACTH12? I would need a smart thermostat that communicates over the Adata and Bdata digital lines. Thank you!

Reply

Kevin C.

7/18/2024

@Leo Unfortunately the Advent system isn't really compatible with other systems so at this time there just isn't the compatibility available.

Reply

Answer 1

Advent Air Conditioners like part #ACM135 come with a connector that pairs up directly with the standard 6-wire connector. If you have a 9-wire connector then you need the kit #ACRG15 as well. For wiring I'm attaching some photos of diagrams for…

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Answer 2

Hey Mike, in order to replace the Advent Analog Wall Thermostat ACTH11 you'll need the Air Distribution Box w/ Wall-Mounted Thermostat for Advent Air RV Air Conditioners part #ACRG15. This is a digital style replacement which is what you'll…

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Answer 3

I called and spoke to the technician at Lippert about the gear packs. If the arms that attach to your slide out are 2 x 2 you will need Gear Pack part #LC281331. If the arms that attach to the slide out at 2.5 x 2.5 you can certainly use Gear Pack…

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Answer 4

To replace the ACRG11 on your Advent AC Unit you'll want to use the Replacement Digital Relay Box for Advent Air RV Air Distribution Boxes part #PXXACRG12RB; this part will allow you to use a digital thermostat. If you also need a digital…

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Answer 5

Hi Anthony; as far as we know the Advent Air #ACDOM150 is not compatible with the GE setup. You can try to plug it in and see if it will work but it sounds like you already found the plugs don't match up. There are no GE adapters so the only…

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Answer 6

I'm assuming you're asking if you swap your Carrier unit to the Advent Air Replacement RV Air Conditioner for Carrier Setup #ACCAR150 will you still be able to use your current remote. If that's the case then yes you will absolutely be…

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Answer 7

Since you are using shore power, you can replace your Coleman with an Advent 15,000 Btu unit and just need the wiring adapter. I really like the low profile units so I recommend going that route, and you can choose from either White or Black in…

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Answer 8

An E5 error code simply means there's a communication error between the relay box #PXXACRG12RB and the thermostat. If you're hooking it directly to the relay box without any extra wire and it's wired correctly and you're still getting…

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Answer 9

The Digital Thermostat ACTH12 is a confusing thermostat since it can be used with heat pumps, heat strips and furnaces. First you will want to make sure you have the dip switches on the back of the controller set up correctly. If you are just using…

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Answer 10

Typically if there are two wires running from the furnace to the AC system then it means that the furnace has power already connected to it and it sends that through one of the wires up to the AC until the system calls for heat, at which point the…

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Answer 11

We've had this question before and Advent confirmed for us that the relay box part #PXXACRG12RB does work to replace the ACRG11 and it would convert it to digital from analog.

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Answer 12

The Advent Air RV Air Conditioner w/ Air Distribution Box and Wall Thermostat, #ADV44FR has four wires to thermostat. Purple connects to B position, blue to A, with red being the needed 12VDC and gray to COM.

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How To Install The Advent Air RV Air Conditioner System With ACTH12 Thermostat

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