Airflow Duplexvent MULTI-N Instruction Manual page 11

4. Mount the base frame; position the frame according to the planned roof outlets (see technical
specification of the unit).
5. Incline both longer and shorter side of the frame in the slope of 3% so that water condensing
inside the unit flows towards the condensate drain located at the exhaust of stale air i2. Use
adjustable feet and their adjustable base to achieve the inclination (see points 1 and 2 in the
scheme on the following page). Each location of condensate drain is marked by letter K on the
unit.
Sloping the unit towards condensate drain and towards the exhaust of
stale air i2
You will find approximate distances between adjustable bases in the selection SW Duplexvent.
Select the tab Design, keep the option Base frame selected and click on AHU placement
method.
6. Lead the top of the roof covering or felt (point 6 in the picture below) over the edge of the base
frame. Place wedge blocks between the thermal insulation and base frame if the roof covering
cannot be mounted in rectangular angle.
7. Cut out holes so that spindles of the unit can rest in the base frame. The spindles will provide for
correct position of the unit on the base frame. The spindle holes can be found on shorter sides of
the base frame near corners.
8. Smelt the roof covering on the base frame, lead the top of the felt over the edge of the base frame.
Adjustable base (1)
0-40 mm
You will find the scheme of fitted unit also in the selection software of Duplexvent units. Proceed to
the tab Design, keep the option Base frame selected and click on AHU placement method.
Adjustable feet (2)
0-250 mm
Stuck-on D profile sealing (7)
Roof covering (6)
Thermal insulation (5)
Roof construction (4)
Duct extension (3)
1000 mm
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