Dometic ACC3100D Installation Manual page 16

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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.
Fig.  on page 1
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.
Fig.  on page 2
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 cur-
rent .
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
10 mm
EN
24 mm
15