Mounting
│ gb
11
4. Take inner sound-absorbing elements [10]
out of wall sleeve [11].
5. Decide on the mounting position.
Ensure a minimum distance of
110 mm between the core hole
centre and wall and ceiling.
5.3 Mounting wall sleeve
NOTICE
Condensate will run towards
the inside wall if the core hole
is drilled at too small an
incline.
Ensure an incline of 1...2 % to
the outside wall so that any
condensation which collects can
drain outwards.
The wall sleeve [11] is fitted in the wall as
follows.
1. Drill core hole in wall:
ALD 125: Ø 127 mm, ALD 160: Ø 162 mm
2. Reduce wall sleeve [11] to wall thickness.
Select a wall sleeve length which ends the
sleeve flush with the plaster on both sides.
3. If walls have a wooden construction, also
seal the interfaces to this construction.
Stick sealing strips to the wall sleeve in
these areas. Suitable sealing material
is to be supplied by the customer.
4. Fully seal the spaces between the wall
sleeve and wall with non-shrink and
weatherproof sealant.
5.4 Mounting inner sound-absorbing
element and storm protection
The inner sound-absorbing element [10] and
storm protection [9] are fitted as follows.
1. Shorten inner sound-absorbing ele-
ment [10] by the same amount that you
shortened the wall sleeve [11].
The values for standard difference in
noise level (
chapter 3) are reduced.
2. Position storm protection [9] roughly in
centre of sound-absorbing element [10].
The storm protection is fitted central-
ly ex factory. If the sound-absorbing
element [10] is shortened, reposition
the storm protection to roughly the
middle. Ensure a vertical installation
position ‒ the silicone ribs must not
sag under their own weight. If you
remove the storm protection in its
entirety, ensure that the "UP" arrow
is still at the top when putting back in.
3. Slide sound-absorbing element [10] into
wall sleeve from inside out.
5.5 Mounting external grille
ALD 125, ALD 160
1. Fit sound-absorbing elements [12] on the
external grille housing [13.1].
Outside wall
Inside wall
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