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Dometic B57915 - User Manual

Dometic B57915
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CLIMATE CONTROL
AIR CONDITIONERS
Form No. 3317817.000 1/21 | ©2021 Dometic Corporation
WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Brisk Air (457915, 459516), Brisk II (B57915, B59516),
High Performance (540315, 540316), Blizzard NXT (H540315, H540316),
Penguin (640312, 640315, 640316), Penguin II (640312C, 640315C, 640316C),
FreshJet (FJX3473, FJX3573)
EN
Value Air Distribution Box,
Mechanical
Installation and Operation Manual . ........2

Table of Contents

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Questions and Answers

  • L
    Lori PriceAug 19, 2025
    Why is my Dometic B57915 Air Conditioner not maintaining the desired temperature?
    • Z
      Zachary WrightAug 19, 2025
      Your Dometic Air Conditioner might struggle to maintain the desired temperature if the RV is gaining heat due to high outdoor temperatures or humidity. To mitigate this, park the RV in a shaded area. Additionally, use window shades, blinds, or curtains, keep windows and doors closed or minimize their use, and avoid using heat-producing appliances inside the RV. You can also operate the product in the High Fan/Cooling mode or start the product before the outside temperature increases.
  • J
    Jesse HurleyAug 21, 2025
    How to fix a Dometic B57915 Air Conditioner that won't turn on?
    • A
      Amy GarciaAug 21, 2025
      If your Dometic Air Conditioner isn't working, check if the circuit breaker has been activated and reset it if necessary. Also, inspect the fuse and replace it if it has blown.
  • B
    Bonnie PerezAug 23, 2025
    What to do if my Dometic B57915 doesn't cool enough?
    • A
      awebsterAug 23, 2025
      If your Dometic Air Conditioner isn't maintaining the desired temperature, consider that the RV's heat gain could be affected by high outdoor temperatures or humidity. Try parking the RV in a shaded area. Additionally, use window shades, blinds, or curtains, keep windows and doors closed or minimize their use, and avoid using heat-producing appliances inside the RV. You can also operate the product in the Turbo Fan/Cooling mode or start the product before the outside temperature increases.
  • R
    Ryan FisherAug 26, 2025
    What to do if frost forms on the evaporator coil of my Dometic B57915 Air Conditioner?
    • N
      Nancy HendersonAug 26, 2025
      If you notice frost forming on the evaporator coil of your Dometic Air Conditioner, it could be due to very cold output at a very low air speed, or the outside temperature may be relatively low. First, inspect and clean the filter. Then, open the air vents and remove any obstructions. Confirm that a minimum of two distribution vents, or the quick cool vent and one vent, are open. Adjust the thermostat control knob to a warmer setting (counterclockwise). You can also operate the product on any Fan Only setting until the coil is free of frost.
  • M
    Matthew GrahamAug 27, 2025
    How to prevent condensation forming on ceilings from Dometic B57915 Air Conditioner?
    • N
      Nathaniel EverettAug 28, 2025
      To reduce condensation forming on ceilings, windows, or other surfaces when using your Dometic Air Conditioner, keep doors and windows closed when the unit is in operation. This minimizes the amount of water vapor in the air that can condense on cooler surfaces.
  • C
    Caitlin BurkeAug 30, 2025
    Why does frost form on the evaporator coil of my Dometic Air Conditioner?
    • C
      Crystal CookAug 30, 2025
      Frost can form on the evaporator coil of your Dometic Air Conditioner if the product is producing very cold output at a very low air speed. Inspect and clean the filter. Also, open the air vents and remove any obstructions. If the outside temperature is relatively low, adjust the thermostat control knob to a warmer setting (counterclockwise). You can also operate the product on any Fan Only setting until the coil is free of frost.
  • K
    Kimberly FreemanSep 1, 2025
    What to do if my Dometic Air Conditioner does not operate well when connected to the motor generator?
    • C
      Colleen ElliottSep 1, 2025
      If your Dometic Air Conditioner isn't operating well and the RV is connected to the motor generator, confirm the motor generator is running and producing power. Also, confirm the fuse or circuit breaker is open and ensure the fuse is not blown, or circuit breaker is on and not activated.
  • L
    Lynn MccormickSep 3, 2025
    How to reduce condensation forming with my Dometic B57915 Air Conditioner?
    • S
      Sean MaySep 3, 2025
      To reduce condensation forming on ceilings, windows, or other surfaces when using your Dometic Air Conditioner, keep doors and windows closed when the unit is in operation. This helps to reduce the amount of water vapor in the air that can condense on cooler surfaces.
  • J
    jasonfloydSep 5, 2025
    What to do if Dometic B57915 Air Conditioner is not working when connected to land line?
    • T
      Theresa PetersonSep 5, 2025
      If your Dometic Air Conditioner isn't working or is operating poorly when connected to a land line, first confirm that the land line is plugged into the power supply and that it is properly-sized for the product's power load.
  • J
    Jeffrey WardSep 7, 2025
    What to do if Dometic B57915 Air Conditioner is not working when connected to generator?
    • S
      sean97Sep 7, 2025
      If your Dometic Air Conditioner is not working, or working poorly, when connected to the motor generator, you should confirm the motor generator is running and producing power. Also, confirm the fuse or circuit breaker is open, ensuring the fuse is not blown, or the circuit breaker is on and not activated.

Summary

Explanation of Symbols and Safety Instructions

Recognize Safety Information

Alerts users to potential physical injury hazards using the safety alert symbol.

Understand Signal Words

Identifies safety messages and property damage messages, indicating hazard degree.

Supplemental Directives

Provides directives to reduce accident and injury risks during installation, operation, or service.

General Safety Messages

Highlights critical warnings for electrical shock, fire, and explosion hazards.

Intended Use

General Information

Tools and Materials

Lists recommended tools and materials for installation.

Model Identification

Explains where to find model and serial number identification labels.

ADB Components

Identifies the main components of the ADB kit.

Rooftop Component Dimensions

Freshjet Dimensions

Details dimensions and clearances for the Freshjet rooftop unit.

Brisk Air Dimensions

Details dimensions and clearances for the Brisk Air rooftop unit.

More Rooftop Component Dimensions

Brisk II Dimensions

Details dimensions and clearances for the Brisk II rooftop unit.

Blizzard NXT Dimensions

Details dimensions and clearances for the Blizzard NXT rooftop unit.

Additional Rooftop Component Dimensions

High Performance Dimensions

Details dimensions and clearances for the High Performance rooftop unit.

Penguin Dimensions

Details dimensions and clearances for the Penguin rooftop unit.

Final Rooftop and ADB Dimensions

Penguin II Dimensions

Details dimensions and clearances for the Penguin II rooftop unit.

ADB Component Dimensions

Presents the internal dimensions of the ADB component.

Placement Requirements

Tilt Requirements

Details acceptable tilt allowances for rooftop component placement.

Specifications

Wiring Diagrams

Pre-Installation

Determining Your Cooling Needs

Guides users on factors to consider for selecting the appropriate cooling capacity.

Preparing the RV Roof Opening

Details the process of preparing the RV roof for unit installation.

Roof Opening Preparation

Using an Existing Roof Vent Opening

Instructions for preparing the roof opening when an existing vent is present.

Making a New Roof Opening

Instructions for creating a new roof opening if no existing vent is available.

Routing Wiring and Positioning Component

Routing the Wiring

Provides instructions on how to route the power supply wiring.

Positioning the Rooftop Component

Guides the placement of the rooftop unit onto the prepared roof opening.

Installation Process

Installing the Foam Dividers

Explains how to fit foam dividers based on roof thickness using selection tables.

Foam Divider Selection: 1.25 to 5.5 in. Thickness

Foam Divider Selection: 6.0 to 7.5 in. Thickness

Securing the Unit

Mounting Bolt Pattern and Location

Illustrates mounting patterns and bolt placement for unit security.

Torque Specifications

Specifies the correct torque for tightening mounting bolts.

Wiring the Unit to the Power Supply

Connecting the Power Supply

Details how to connect the 115 VAC power supply wires from the rooftop component and the AC.

Finalizing the Installation

Maintenance

Cleaning the Air Filter

Provides instructions for periodic removal, washing, and drying of the air filter.

Cleaning the ADB Housing

Details how to clean the ADB housing and control panel with a soft cloth.

Troubleshooting

Disposal

Limited Two-Year Warranty

Dometic B57915 Specifications

General IconGeneral
Power Source115V AC
Hertz60 Hz
Cooling Capacity15, 000 BTU
Installation TypeRoof-mounted
Fan Speed3

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