SETTING THE DAMPER
Basic flow
Fig. 11
Basic ventilation is set by moving the slid-
ing damper A to the desired position ac-
cording to marking B, Fig. 11. (See
diagram, page .)
Measuring pressure drop
Fig. 12
The pressure drop is measured by fitting
the hose on the measuring port E at the
front edge of the coupling, Fig. 12.
991.0566.818/126376/2019-02-27
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