251 14 EC User instructions GB SV DA NO

Table Of Contents
ADJUSTING AIR FLOW
SETTING THE DAMPER
Basic flow
Fig. 7
Basic ventilation is set by moving the slid-
ing damper A to the desired position ac-
cording to marking B, Fig. 7. (See diagram,
page 31.)
Measuring pressure drop
Fig. 8
The pressure drop is measured by fitting
the hose on the measuring port E at the
front edge of the coupling, Fig. 8.
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991.0358.150/126051/2018-10-02