Dometic 3314851.000 Universal Mechanical RV A/C Air Distribution Box - White

The Dometic 3314851.000 is a white, integral-mechanical air-distribution box designed to move conditioned air directly into an RV without ceiling ducts. With its controls located at the ceiling, it is an option for correctly matched rooftop cooling systems that do not use a separate wall-thermostat arrangement.

Part identification

• Brand: Dometic
• Legacy part number: 3314851.000
• Manufacturer 2025 catalog cross-reference: 9105304487, Universal Air Distribution Box with Controls
• Configuration: non-ducted interior air-distribution box
• Controls: integral mechanical ceiling controls
• Finish: white
• Condition: new

Confirm the exact rooftop model

Dometic's model-specific installation manual directly pairs this ADB with commercial roof units 477915, 477915A, 479516 and 479516A. Dometic has also documented the 3314851.000 mechanical ADB in manuals for selected older Brisk II and other compatible rooftop families. That manufacturer support does not establish universal compatibility with every FreshJet, Blizzard, Brisk or Penguin revision. Before purchase, compare the entire rooftop data-plate model and required ADB/controller type to the applicable installation manual.

Mechanical versus electronic control

This is the with-controls version, rather than the no-controls 3314850.000 return/ADB family used with a separately selected wall thermostat and control package. Do not interchange the two on appearance alone. A matched mounting arrangement and the proper electrical connections are essential for safe operation.

Contents and warranty

One mechanical ceiling air-distribution box for supported non-ducted rooftop units. Rooftop air conditioner is not included. Follow the supplied manufacturer installation instructions and written warranty terms; do not assume any particular older system or optional accessory is covered without verifying the model.