Attention!
Handle the forcing hatch with care, mak-
ing sure it is not bent.
Move the hatch to the desired position.
Markings for the position of the forcing
hatch, F1–F6, correspond with the values in
the diagram Forced ventilation, see Fig. 12
page 35.
Press the forcing hatch into the lock, ensur-
ing that it is properly secured.
Measure the pressure Pm and check that
the desired forcing flow is achieved. (See
Adjusting basic ventilation
Fig. 9
Adjust the basic ventilation with the dam-
per hatch closed. Undo the screws, Fig. 9E.
Move the damper hatch, Fig. 9F, to the des-
ired position.
Attention!
Handle the damper with care.
The markings for the position of the damper
hatch, G1–G6, correspond with the values
in the diagram Basic ventilation, see Fig. 13
page 36.
Lock the damper hatch in place with the
screws, Fig. 9E.
Measure the pressure Pm and check that
the desired basic flow is achieved. (See
24
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