DOMETIC ACC3100D Rooftop Ventilation Installation Guide

CLIMATE CONTROL
ROOF TOP
VENTILATION SYSTEM

ACC3100D
Ventilation system
Installation manual

Copyright
© 2023 Dometic Group. The visual appearance of the contents of this manual is protected by copyright and design law. The underlying technical design and the products contained herein may be protected by design, patent or be patent pending. The trademarks mentioned in this manual belong to Dometic Sweden AB. All rights are reserved.

Important notes

Please read these instructions carefully and follow all instructions, guidelines, and warnings included in this product manual in order to ensure that you install, use, and maintain the product properly at all times. These instructions MUST stay with this product.
By using the product, you hereby confirm that you have read all instructions, guidelines, and warnings carefully and that you understand and agree to abide by the terms and conditions as set forth herein. You agree to use this product only for the intended purpose and application and in accordance with the instructions, guidelines, and warnings as set forth in this product manual as well as in accordance with all applicable laws and regulations. A failure to read and follow the instructions and warnings set forth herein may result in an injury to yourself and others, damage to your product or damage to other property in the vicinity. This product manual, including the instructions, guidelines, and warnings, and related documentation, may be subject to changes and updates. For up-to-date product information, please visit documents.dometic.com.

Explanation of symbols

WARNING!
Indicates a hazardous situation that, if not avoided, will result in death or serious injury.
CAUTION!
Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
NOTICE!
Indicates a situation that, if not avoided, can result in property damage.
Note Supplementary information for operating the product.

Safety instructions

WARNING! Failure to obey these warnings could result in death or serious injury.

• Repair of the appliance may only be carried out by qualified personnel who are familiar with the risks involved and the relevant regulations. Inadequate repairs may cause serious hazards. For repair service, contact the service center in your country (see dometic.com/dealer).
• The appliance shall be installed in accordance with national electrical and mechanical installation regulations.
• Electrical appliances are not toys. Keep electrical appliances out of reach of children or infirm persons. Do not allow them to use electrical appliances without supervision.
• Persons whose physical, sensory or mental capabilities or whose lack of experience and knowledge prevent them from using the appliance safely should not use it without supervision or instruction by a responsible person.
• Do not undo the upper cover of the appliance in the event of a fire. Use approved extinguishing agents instead. Do not use water to extinguish fires.
• The appliance shall be stored in a room without continuously operating open flames (for example an operating gas appliance) and ignition sources (for example an operating electric heater).
• The appliance shall be stored horizontally at a dry, ventilated and covered location.
• Do not pierce or burn the appliance.

CAUTION! Failure to obey these cautions could result in minor or moderate injury.

• Only start up the appliance if you are certain that the housing and the cables are not damaged.
• Do not use the appliance near flammable fluids or in closed rooms.
• Ensure that no combustible objects are stored or installed near the air outlet. A distance of at least 10 cm must be kept.
• Do not reach into air outlets or insert any foreign objects in the appliance.
• Always wear protective goggles and gloves.

NOTICE! Damage hazard

• The appliance shall be stored so as to prevent mechanical damage from occurring.

• Before installation, check whether any vehicle components could be damaged by the installation of the appliance (such as lamps, cupboards, doors). The vehicle manufacturer may have already provided points where the opening for the installation of the
  appliance can be made without any risk of weakening the construction or cutting power cables.

• Before installation, consult the vehicle manufacturer whether the construction is designed for the static weight and the loads of the ventilation system when the vehicle is in motion.

• Seal all openings made when installing the ventilation system.

• Select a flat and sufficiently level area at the center of the vehicle roof between two longitudinal sections for installation.

• Ensure that there are no objects within the vehicle which could obstruct the attachment of the air distribution box (ADB) or the fresh air from flowing through the air outlets.

• Do not make any alterations or conversions to the appliance.

• Never drive through automatic car washes when the appliance is mounted.

Scope of delivery

Accessories

Outside air filter

Target group

The mechanical and electrical installation and setup of the device must be performed by a qualified technician who has demonstrated skill and knowledge related to the construction and operation of automotive equipment and installations, and who is familiar with the applicable regulations of the country in which the equipment is to be installed and/or used, and has received safety training to identify and avoid the hazards involved.

Intended use

The ventilation system is intended to be installed in motor caravans, leisure boats, caravans and recreational vehicles.
The device is not suitable for:

• Houses
• Apartments
• Cruiseline
• Construction machines
• Agricultural machines
• Trucks

This product is only suitable for the intended purpose and application in accordance with these instructions.
This manual provides information that is necessary for proper installation and/or operation of the product. Poor installation and/or improper operating or maintenance will result in unsatisfactory performance and a possible failure.
The manufacturer accepts no liability for any injury or damage to the product resulting from:

• Incorrect assembly or connection, including excess voltage
• Incorrect maintenance or use of spare parts other than original spare parts provided by the manufacturer
• Alterations to the product without express permission from the manufacturer
• Use for purposes other than those described in this manual

Dometic reserves the right to change product appearance and product specifications.

Installation

WARNING! Electrocution hazard

• The electrical power supply must be connected by a qualified electrician who has demonstrated skill and knowledge related to the construction and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved.
• Disconnect all power supplies when working on the ventilation system.
• Ensure that the appliance cannot be reconnected.

WARNING! Electrocution hazard

•  The appliance shall be installed in accordance with national wiring regulations.
•  If the appliance replaces a window or hatch with a safety relevant forced venting function, an additional safety venting device (e.g. a mushroom fan or similar) needs to be added. In doubt consult the vehicle manufacturer.

CAUTION! Beware of injury

• Improper installation of the ventilation system can result in irreparable damage to the appliance and put the safety of the user at risk.
• Always have someone to help you carrying or lifting the ventilation system.
• Before installation, check the location of existing wiring harnesses, wires and other components within the installation area, in particular those which are not visible, when installing the appliance (when drilling or screwing etc.).
• Attach and lay the cables so that they cannot be tripped over or damaged.
• Always wear the protective goggles and gloves.

NOTICE! Damage hazard

• Use cable ducts to lay cables through walls with sharp edges.
• Do not lay loose or bent cables next to electrically conductive materials (metal).
•  Do not pull on the cables.
• Observe the structural strength of the roof of the vehicle. The roof of the vehicle must be able to bear the weight of the ventilation system without being indented or deformed. In doubt consult the vehicle manufacturer.

Choosing the way of installing the ventilation system

• Choose your way of installing the ventilation system:
  

• Make a new opening (A). In this case the opening must be reinforced by an appropriate frame.

• Use an existing opening in the vehicle (B) such as a roof hatch or replacing an old device.

Making a new opening

1. Select an area at the center on the roof between two longitudinal supports.

2.  Mark the position and size of the opening.
   | Version 1| Version 2
   ---|---|---
   X| 355 mm| 400 mm
   Y| 5 mm| 12 mm
   Ø| 10 mm| 24 mm

3.  Drill out the corners.
   NOTICE! Damage hazard
   Ensure that no electrical power cables are damaged. Check where the electrical cables are located.

4. Carefully cut out the opening on the roof using a keyhole saw or a similar tool.

5. Check whether the roof hole needs reinforcing.
   Note The edges must be parallel to each other.
   

6. If needed, remove the foam according to the width of your reinforcing rails (not in scope of delivery).

7.  Fit the reinforcing rails.

Installing in an existing opening

1. Remove all screws and fixtures of the existing roof hatch or device.
   

2. Take out the roof hatch or device.

3.  Remove the sealant around the opening using a scraper or similar tool.

Installing optional accessories (depending on the model)

NOTICE! Damage hazard

• Observe the correct installation sequence before making the electrical connections.
• Observe the installation manuals of the accessories (optional).

1. Roof top unit
2.  Solar panel (optional)
3. LED light strip (optional)
4. Air purification module (optional)
5. Heat exchanger unit
6. Performance booster (optional)
7. Interior cover

Laying the connecting cables

1. Check that the voltage specification on the data plate of the ventilation system is the same as that of the power supply. The ventilation system must be connected to an electric circuit which is able to supply the required current .

2.  Install an all-pole switch with a contact opening width of at least 3 mm on the installation side.

3. Select the cross-section of the power supply cable corresponding to the length:
   • Length < 7.5 m: 1.5 mm²
   • Length > 7.5 m: 2.5 mm²

4.  Make an opening on one side in order to feed through the power supply cable.
   

5. Feed the power supply cable through the opening into the vehicle interior.

Installing the roof top unit

1. Only for version 1: Remove the center ring on the roof top unit.
   

2. Seal around the roof frame with flexible non-hardening butyl sealing compound (e.g. SikaLastomer-710, Selleys Butyl Mastic, Bostik ezycaulk butyl sealant, or similar products). Observe the sealant manufacturer’s instructions.

3. Lift the roof top unit onto the roof of the vehicle. Observe the direction of travel.

4. Position the roof top unit centrally on the roof of the vehicle.

5. Remove the cable tie on the rooftop unit and lead the cables through the corresponding opening into interior of the vehicle.

Installing the air purification module (optional)

1. Fix the air purification module to the heat exchanger unit.
   

2. Lead the cable through the key hole bushing to the underside of the heat exchanger unit

3. Mount the ionization needle.
   

Installing the heat exchanger unit

1. Depending on the roof thickness, cut the spacers supplied with the fixing kit to the required lenght.
   Roof thickness (W)| Spacer length required (h)
   ---|---
   23 mm … 29 mm| –
   2 mm
   4 mm
   6 mm
   30 mm … 48 mm| 8 mm
   10 mm
   12 mm
   14 mm
   16 mm
   18 mm
   20 mm
   22 mm
   24 mm
   26 mm
   49 mm … 60 mm| 28 mm
   30 mm
   32 mm
   34 mm
   36 mm
   38 mm

2. Feed the cables through the key hole bushing of the heat exchanger unit.
   

3. Insert the spacers into the screw holes from the upper side of the heat exchanger unit.
   

4. NOTICE! Damage hazard
   Ensure that no cable is pressed in or pinched.
   Align the heat exchanger unit to the roof top unit.

5.  Fasten the heat exchanger unit though the ceiling to the roof top unit with the 12 bolts supplied with the fixing kit. Tighten the bolts using a torque spanner and a fastening torque of max. 2 Nm.

Installing the interior cover

1. Feed the cables through the key hole bushing of the interior cover.
   

2. NOTICE! Damage hazard
   Ensure that no cable is pressed in or pinched.
   Attach the interior cover to the heat exchanger unit.

3. Fasten the interior cover to the heat exchanger unit with the 4 bolts supplied with the fixing kit. Tighten the bolts using a torque spanner and a fastening torque of max. 1.2 Nm.

Installing the LED light strip (optional)

• Fix the LED light strips to the interior cover.

Electrical connection

1. Connect the plugs to the sockets.
   Item| Socket| Description
   ---|---|---
   1| C1| Input power supply from vehicle battery
   2| C6| Output LED light strip (optional)
   3| C7| Output LED light strip (optional)
   4| –| Secondary PCB (optional)
   5| C3| Output fan 1
   6| C4| Output fan 2
   7| C2| Output motor
   –| C5| Output air purification module (optional)
   –| C9| Communication CAN (optional)
   –| C10| Communication LIN (optional)
2. Secure the cables with cable ties.
   

Installing the ADB center cover

1. Check that the filters are fully in.
   

2. Clip the ADB center cover to the interior cover.
   

3. Ask the vehicle manufacturer if a technical inspection is required after fitting a ventilation system and whether v the height entered in the vehicle documents needs to be altered. The installation is now completed.

4.  Connect to the power supply and test if the ventilation system works.

Disposal

Recycling products with batteries, rechargeable batteries and light sources: Remove any batteries, rechargeable batteries, and light sources before recycling the product. Return defective or used batteries to your retailer or dispose of them at collection points. Do not dispose of any batteries, rechargeable batteries, and light sources with general household waste. If you wish to finally dispose of the product, ask your local recycling center or specialist dealer for details about how to do this in accordance with the applicable disposal regulations. The product can be disposed free of charge.
**** Recycling packaging material: Place the packaging material in the appropriate recycling waste bins wherever possible.

Warranty

For repair and warranty processing, please include the following documents when you send in the device:

• A copy of the receipt with purchasing date
• A reason for the claim or description of the fault

Note that self-repair or nonprofessional repair can have safety consequences and might void the warranty.

Technical data

ACC3100DWH(A) ACC3100DWHWLD(A)
Ventilation Heat recovery efficiency Weight Features
Certifications
50 m3/h 72 … 87 % 7 kg 7.14 kg
Upgradable with: Provided with:
• LED Light Strip • LED Light Strip • Air Purification Module • Air Purification Module • Performance Booster Upgradable with: • Solar Panel
• Performance Booster • Solar Panel
CE UK CA
dometic.com

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