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Air Distribution Box w/ Built-In Thermostat for Advent Air RV Air Conditioners - Non-Ducted - R32
Advent Air

Air Distribution Box w/ Built-In Thermostat for Advent Air RV Air Conditioners - Non-Ducted - R32

Part Number: ADV48SR
In Stock
$96.11
Retail:$128.16
You Save: 25%
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Stop fighting fixed airflow in your RV. This non-ducted Advent Air R32 air distribution box adds ceiling controls, adjustable registers, and a removable filter so cool air goes where you need it. 1-800-940-8924 to order Advent Air accessories and parts part number ADV48SR or order online at etrailer.com. Free expert support on all Advent Air products. Great prices and Fastest Shipping for Air Distribution Box w/ Built-In Thermostat for Advent Air RV Air Conditioners - Non-Ducted - R32. Accessories and Parts reviews from real customers.
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  • Reviews (41)
  • Q & A (0)
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  • Used (2)

Advent Air Accessories and Parts - ADV48SR

  • RV Air Conditioners
  • Air Distribution Box
  • Advent Air
  • White

Stop fighting fixed airflow in your RV. This non-ducted Advent Air R32 air distribution box adds ceiling controls, adjustable registers, and a removable filter so cool air goes where you need it.


Features:

  • Air distribution box works with new Advent Air AC units (sold separately) using R32 refrigerant
    • Replaces, upgrades, or adds an air distribution box
    • Compatible with non-ducted systems
  • Built-in thermostat controls the fan and temperature settings
  • Adjustable registers on the front and back let you direct the air where needed
  • Removable air filter prevents dust and dirt build-up on the fan blades
  • Bolt-on installation with included mounting hardware
  • Durable, white plastic housing with internal aluminum components are rustproof


Specs:

  • Overall dimensions: 22-1/2" long x 21-1/2" wide x 3-1/2" tall
  • Thermostat temperature range: 65 F to 90 F (16 C to 30 C)
  • 2-Year warranty


Notes:

  • Compatible with Advent Air brand air conditioners that start with "ACR" or "AAC".
  • This unit works with AC systems that use R32 refrigerant which meets EPA standards for 2025.
  • Not compatible with heat pump models.

This air distribution box with a built-in thermostat works with Advent Air AC units (sold separately) and non-ducted RV air conditioner systems. The dial on the left lets you switch between the 3 fan speed settings, the 3 cool settings, and the heat setting. The dial on the right allows you to set the temperature. Additionally, there are adjustable registers on the front and back of the box. These can be tilted up, down, or side-to-side for directing the air where needed. The removable air filter prevents dust and dirt from building up on the fan blades.



ACRND25 Advent Air Non-Ducted Ceiling Assembly





Customer Satisfaction Score:

Ratings & Reviews

4.7

41 reviews
Review sort icon
Stop fighting fixed airflow in your RV. This non-ducted Advent Air R32 air distribution box adds ceiling controls, adjustable registers, and a removable filter so cool air goes where you need it.

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Perfect



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Installed easily and worked as advertis ed.



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That works great, thank you!



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Great service



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Easy install.



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Always great service



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Works perfect I installed it on a ac unit that I could not buy a new thermostat and controler for. It mounted up and plug in perfect to the ac I have



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Screws to mount distribution are cheap. The riveted nut started spinning. I would not by this cheap system again.



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Great product



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The A/C unit we got a couple weeks ago for our mothers RV... was good.
The interior cover with controls was really flimsy and had very sharp edges.
But it's in and works.
Thank you.



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Haven't installed it yet but it looks g ood.



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going to buy another one



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Good product , works well . Used to replace an old carrier air v unit .
Fit in existing hole with no issues . Only problem was from ups shipping box was damaged and unit arrived upside down .



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I installed the correct lower a/c unit and now the a/c system works perfect



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Best deals, Best Shipping, always on time & well packaged…. Not no get over on pricing


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See what our Experts say about this Advent Air Accessories and Parts

  • Will Advent Air Distribution Box ADV48SR Work With Advent ACM135
    Hello Dennis, thanks for reaching out. The Air Distribution Box # ADV48SR will work with any of the 2025 or newer Advent AC units that use the new R32 refrigerant. The part in your picture appears to the Advent ACM135. This part number is an older unit that uses the old R410a refrigerant. If this is what you have, this would not be compatible with the # ADV48SR distribution box. The distribution box you would need is Advent part ACDB, but sadly this was discontinued when they switched...
    view full answer...
  • Does the Thermostat in the Advent Air Distribution Box Turn On an Off When It Reaches a Temperature?
    No, the Air Distribution Box w/ Built-In Thermostat item # ADV48SR turns on and off when it reaches a certain temperature inside the trailer. This one is exclusively for Advent ductless systems with R32 refrigerant. What AC Unit are you looking to install the item # ADV48SR on? This system has the new R32 refrigerant in it and is not compatible with any AC built before 2025 that doesn't have the new R32 refrigerant, including Advent ones. You can add this information and any other questions...
    view full answer...
  • Does Advent Distribution Box Require 12V Power?
    Hey Darin! No, the Advent Air Distribution Box w/ Built-In Thermostat # ADV48SR does not require an additional 12V power supply. The distribution box receives the power it needs through the compatible Advent air conditioner, so no additional 12V wiring is required. If you're replacing only the air distribution box and keeping your existing rooftop unit, you'll want to make sure the two are compatible. Newer Advent systems designed for R32 air conditioners are not compatible with older...
    view full answer...
  • Air Distribution Box and Thermostat for 15K Btu Advent Air R32 AC Unit
    Hey José, thanks for reaching out! The air distribution box and thermostat that works with the Advent Air RV Air Conditioner # ADV86SR you're looking at is part # ADV98SR for a wall thermostat, or part # ADV48SR if you want the thermostat built into the air distribution box. Let me know if you have any other trailer upgrades or replacements you plan on doing in the future and I'll be happy to help you out!
    view full answer...
  • What Manual Control Distribution Box Goes With Advent Air RV Air Conditioner ADV86SR?
    Hey Dave, thanks for reaching out. We have exactly what you need! The distribution box you will need to go with the Advent # ADV86SR unit you ordered is the following: - Air Distribution Box w/ Built-In Thermostat for Advent Air RV Air Conditioners - White - R32 # ADV48SR This will give you manual controls for the AC right on the ceiling under the unit. I also recommend you add the Start Capacitor for Advent Air RV Air Conditioners # ACMSCKIT as this will help keep the startup amperage...
    view full answer...
  • Does Advent Air AC Unit Vent Assembly Fit Older Advent Air Units
    Hey Noe, the Advent Air Ceiling Assembly Air Box part # ADV48SR that you referenced will only work with Advent Air AC units that were made after January 1st of 2025 due to changes in the refrigerant requirements that were enacted on that day. If you have an Advent Air unit made after that day then yes this would work but if old we don't have a solution.
    view full answer...
  • Availability Of Distribution Box For Older Duo Therm 59516.331 AC Unit
    Hello Kevin, thanks for reaching out. I am sorry to say we do not offer an air distribution box to go with that. Main reason being what you have is an older AC unit that uses the now discontinued r410a refrigerant. The new RV AC units and distribution boxes now use R32 refrigerant. The new distribution boxes are not backwards compatible with old AC units. So the only solution here would be for you to either find an old Duo Therm distribution box, or to use a new R32 AC unit and distribution box.
    view full answer...
  • Recommended Air Distribution Box w/a Built-In Thermostat for R32 Advent Air RV Air Conditioners
    Hey Shawn! The Advent Air RV Air Conditioner item # ADV96SR you purchased has the new R32 refrigerant in it so you are going to need a new air distribution box. I recommend the Air Distribution Box item # ADV48SR. This one is set up for a ductless orientation where the air exits directly below the AC unit through vents in the box. It has a built-in thermostat and controls for the fan and temperature settings. It'll connect directly to the Advent Air RV Air Conditioner item # ADV96SR. The...
    view full answer...

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Used Items Available
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Condition: Badly Dinged

Notes: Item has a minor crack. Otherwise new and unused.

$77.68
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Condition: Installed

Notes: Item has been installed/test fit.

$77.94
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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Dawn Z
Updated by:
Dawn Z
Employee Amanda M
Edited by:
Amanda M
Employee Andy C
Installed by:
Andy C
Employee Ashley K
Written by:
Ashley K

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