Installation; Disassembly Of A Roof Hatch (400 X 400 Mm); New Roof Cut-Out; Notes For Hole Cut-Out - Carbest CoolSky 2600 W User Instruction

EN

2.3. Installation

2.3.1. Disassembly of a roof hatch (400 x 400 mm)

• Unscrew the screws and remove the roof hatch.
• Remove the sealant around.
• Seal all screw holes and joints with a flexible non-hardening butyl sealing compound.
2.3.2. Making a new roof cut-out (roof hatch non-existent)
• Cut a 400x400 mm+3 mm opening on the roof of motorhome, which must be located between the
roof reinforcements and must pass through the roof and ceiling of the motorhome.
WARNING:
There may be wiring between the roof and ceiling. The 230V AC power supply must be cut
off before installation. Failure to follow this instruction may result in electric shock and
further cause death and personal injury.
• Mark a 400x400 mm+3 mm square on the roof and cut an opening carefully.
• Cut a matching hole on the ceiling based on the roof opening, as shown in the following figure.
2.3.3. Notes for making a new opening
• If the opening exceeds 403x403 mm, gaskets must be installed.
• If the opening is less than 396x396 mm, the opening must be enlarged.
Opening

2.3.4. Wiring requirements

The wiring method must comply with all national wiring regulations.
Fuse or circuit breaker should be installed and it should be well grounded. Lead out a minimum
2.5mm 2 copper cable from the circuit breaker to the front position of roof opening. The power line
must be located on a separate 20 A circuit breaker.
• Ensure that the wire extends into the roof opening by at least 380mm, which can facilitate the
installation of air conditioning equipment.
• After the roof vent is removed, if the size of wire left is appropriate and the fuse specification is
also appropriate, it can be used.
The wire entering the opening should be protected to avoid damage.
•

2.3.5 Opening treatment

The opening must be adequately supported and the roof interlayer should be filled with insulating
materials. To prevent resonance caused by air in the upper interlayer, it is required to seal the
periphery with battens with a thickness of 20mm or more, and provide a wire inlet for the power line,
as shown in the following figure:
Minimum 20mm
Frame opening
Provide a wire inlet
The 400 x 400mm + 3mm roof opening is an integral part of the return air duct and must be
polished according to industry standards.
NOTE:
The installation personnel of air conditioning equipment shall be responsible for ensuring
structural integrity of the roof of motorhome.
Do not create a low-lying area where water will accumulate on the roof. Otherwise, stagnant
water around may seep into the vehicle causing damage to this product and motorhome.
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