72 VELUX
A B
The skylight can be adjusted to three dierent max-
imum openings: 12" (300 mm), 8" (200 mm) and
4" (100 mm). Default is generally 12" (300 mm) but
for specific skylights the maximum default opening
may be 8" (200 mm).
Note: For in-reach applications where the skylight
is installed less than 8 ft. (2.5 m) from the floor, the
default maximum opening must be 4" (100 mm).
When changing the maximum opening, the buttons
located under the skylight operator cover holes (A and
B) are operated by carefully inserting a pointed object
through the holes in the skylight operator cover.
1
To change the opening, reset the skylight as described
in section Resetting and preparing for registration,
items 1 and 2.
2
Disconnect the main power supply and, if installed,
battery backup KLB 100 for at least 60 seconds.
Reconnect the power and, within 30 seconds, press
and hold the button closest to the side frame (B) for
10 seconds or until the skylight opens. The skylight
will open and stop at the latest set maximum opening.
3
Press the button closest to the side frame (B) to
change this opening to the next maximum opening.
When the skylight has stopped at the desired maxi-
mum opening, press the button closest to the center
of the skylight (A) to accept the new opening setting.
The skylight closes.
Adjusting the maximum opening
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