Komfovent VERSO Pro P, Installation And Maintenance Service Manual

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UAB KOMFOVENT we reserve the right to make changes without prior notice
V-C5.1_21-01
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4.3. Connection to Air Ducts
• Ducts connecting the unit to the exterior of the building must be insulated
(insulation thickness 50–100 mm) to prevent condensation on cold surfaces.
• Air intake and exhaust ducts must be fitted with air shut-off dampers (electric
with actuators) to protect the unit from exposure to climatic conditions when
the unit is switched off.
• In order to minimise AHU generated noise and noise transferring through the
ducts into ventilated areas, sound suppressors (silencers) must be connected
to the unit.
• Air duct system elements must have separate brackets and must be mounted
in a way that their weight is not shifted to the unit casing.
Air ducts shall be connected to flexible unit connections, flanges or air dampers. Depending on
the AHU size, L-20 or L-30 flanges shall be used. Special adhesive gasket must be attached to flanges for
airtightness of air ducts. We recommend installing a solid gasket, i.e. do not cut it to smaller pieces. Make
sure that the gasket does not cover fastening holes in the corners and is not damaged when fastening
screws. Flanges in the corners are fastened with M8x20 screws and a C profile is pressed on edges to
connect the flanges.
A
A
А - А
3
2
3
2
1
2
1
2
2
3
Fig. 3. Example for fastening and sealing of a flange ductwork connection
1 – screw, 2 – C profile for connection of flanges, 3 – adhesive gasket