Saey CROSS Notice D'installation Et D'utilisation page 60

VSR installed on the air valve
(Picture with factory setting of the VSR on a
modern chimney with effective height 4 m)
Loosen the locknut on the upper control disc
of the VSR - hexagon nut, M4, SW 7 mm
Adjust the pointer of the control disc according
to the type of chimney and the effective height
of the chimney:
first range of the scale:
adjustment of the effective height from 4 m to
10 m for older chimneys (e.g. brick, uninsulated
chimney, shaped chimney, brick chimney with clay
inner pipe of an older type)
second range of the scale:
adjustment of the effective height from 4 m to
10 m for newer chimneys
(e.g. double-walled, insulated chimney)
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