System air VTK Airvent User manual

Document in original language | · A001
VTK Airvent
Installation instructions GB

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© Copyright Systemair AB
All rights reserved
E&OE
Systemair AB reserves the rights to alter their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.

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Contents
1 Making holes for the duct..................................1
2 Mounting ......................................................1
3 Function........................................................1
4 Accessories....................................................2
4.1 Mounting washers..................................2
4.2 Filter change .........................................2

Making holes for the duct | 1
1 Making holes for the duct
Drill holes through the inner wall, dimensions according to the table. See image for suitable location.
VTK ø (mm)
80 85
100 105
125 130
160 165
2 Mounting
1. Cut the duct to adjust to the thickness
of the wall
1
2
3
4
2. Mount the duct through the wall and
use the fastening lugs to attach the duct
with two screws.
3. From the outside, push the wall grid
with extension against the wall duct. Use
filling material against the outer wall if
needed.
4. From the inside, push the airvent into
the duct. The gasket keeps the airvent in
place, no screws are necessary.
3 Function
VTK has a temperature sensitive and automatic thermostat that regulate the airvent plate and adjust the air gap and al-
so the amount of air depending on the outside temperature. The airvent opens less when cold outside. If the airvent is
in auto mode the supply of outside air decrease gradually down to -5° C.
When the temperature rises the airvent opens gradually and are fully open at +10° C. The setting can easily be ad-
justed. By turning the airvent’s plate from auto position; clockwise if you need it to close earlier or counter clockwise if
it should stay slightly open at temperatures under -5° C.
Locknut
Spring
Thermostat bulb Plate
Valve
Guide notch for auto mode
Condensation insulation
Guide
Stop for locking
guide notch
Drive pin
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2|Accessories
4 Accessories
Filter and accessories are available at www.systemair.com.
4.1 Mounting washers
1. Turn the airvent’s plate counter clockwise from auto mode and detach.
2. Mount the washers to desired gap opening on the guide, add 2 mm (the stud on
the washer shall run in the track of the guide).
3. The washers are available in 2 and 4 mm thickness. A 4 mm washer provides 2
mm gap opening. One 4 mm + 2 mm washer provides a 4 mm gap opening.
4. Turn the plate to auto mode.
4.2 Filter change
It is recommended to change the filters between 1-3 years interval depending on placement and air quality.
1. Mount the filter first on the airvent. Ensure that the
filter encloses the venting house and the rubber seal.
2. Push the airvent and filter in to the duct.
3. If correctly mounted, the gasket should hold the
airvent firmly in the duct, no screws are necessary.
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VTK Airvent · Installation instructions · · en_GB · 01-06-2017 · A001
Systemair Sverige AB
Industrivägen 3
SE-739 30 Skinnskatteberg, Sweden
Phone [phone]
Fax [phone]
www.systemair.com