SPI IMO 205236 A001

Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg
Phone [phone]
Fax [phone]
www.systemair.com
Installation instructions
Install the iris damper in the duct.
Measure the pressure difference
P over the iris damper with a
manometer.
Loosen the screws on the
adjustment handle – adjust the
opening to achieve the desired
airflow.
Depending on the opening and the
pressure drop P the airflow can
be established with help of the
included k-factor diagram.
When the desired airflow has been
achieved – tighten the screws on
the ad
j
ustment handle.
P
GB
Pkq 
P