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VTS reserves the right to implement changes without prior notice
Ventus Air Handling Units
4.6 Place of foundation
The AHU should be installed so that connections of any related systems (ventilation ducts, pipelines,
cabling, etc.) do not collide with the inspection panels.
It is forbidden to place any elements on the AHU as well as use the AHU as a support
of ventilation ducts and other building components
.
In order to carry out the assembly, operation and maintenance successfully, please keep minimum
recommended distance (
fig.9
) between the front side and existing construction elements (walls,
pillars, pipelines, etc.).
In compact AHUs where the exchangers’ pins are led to the side opposite to the
access side an appropriate distance required for proper assembly of the power supply
installation elements should be maintained
.
This is possible to install other systems, pipelines, pillars in the operation area only if they can be
easily disassembled for the maintenance and service procedures.
Fig.9. Free space in the front area - the VS 21-650 AHU
4.7 Connecting the ventilation ducts
The ventilation ducts should be connected to the AHU with the flexible connections (optional
accessory) which suppress vibrations of the unit and level the coaxial deflection of the duct and the
AHU outlets. Flexible connections are equipped with flanges with sealing. The flexible flanges
should be connect with ducts with using drilling screws (Fig.10a) or additional clamping elements
(Fig. 10b). Materials to connect ducts are not supplied as standard delivery.
Appropriate operation of the flexible connection occurs if it is stretched to about 110 mm.
The ducts connected to the AHU have to be suspended or underpinned with dedicated support
elements. Conducting the ducts with the fittings should be done in a way to eliminate possible
increase of noise level in the ventilation system.
