Dometic GROUP DRS2, Installation And Operating Manual

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A
5. Remove the top roof flange and screw onto
the product assembly in the four corners using
the 10G x 34 mm screws and tighten to a
torque of 1.5 Nm using a hand torque wrench.
6. Fit the top roof flange with the product assem-
bly to the center of the opening and seal using
silicone adhesive around the perimeter. It is
permitted to apply silicone over the seal as this
will not affect the seal function and will
improve sealing.
7. Place the product assembly onto the top roof
flange on the caravan roof.
8. Choose the most suitable orientation for the
hinged cover for easy access (hinges can face
either the front or rear of the caravan).
9. From inside the caravan, check the spacer
length required by holding the bottom roof
flange in place and measuring the distance
between the bottom roof flange and top roof
flange screw boss. Choose the combination of
10 mm and/or 5 mm spacers so that the total
length of the stacked spacers is 5 mm shorter
than the gap. This is to ensure the bottom roof
flange and top roof flange deform sufficiently
to clamp on the roof.
Fitment of bottom ceiling flange
1. Choose the suitable screws according to the
table and fit them through the holes in the bot-
tom ceiling flange.
2. Slide the spacer over the protruding part of
the screw so that the spacer will be fitted
between the bottom ceiling flange and the
top roof flange.
3. Tighten the screws so that the joint can clamp
down on the sleeve.
4. Continue tightening the screws until there is
no gap between the sleeve and the top and
bottom ceiling flange.
NOTICE! Damage hazard
Overtightening of the screws can cause
damage to the threads and lead to distor-
tion of the product.
To avoid compromised fastening use a
hand torque wrench and observe the
specified torque.
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Roof thick-
ness (mm)
Screw
10G x
60 mm
Screw
10G x
80 mm
Spacer
length
(mm)
30 x 5
35 x 10
40 x (recom-
mended)
x 15
45 x (recom-
mended)
x 20
50 x 25
55 x 30
60 x 35
65 x 40
4x
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