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VTS reserves the right to implement changes without prior notice
Ventus Air Handling Units
4. FOUNDATION, ASSEMBLY, CONNECTION OF UNIT-
RELATED SYSTEMS
4.1 AHUs supplied in sections
Sections connection is out of the standard offer of VTS. It is possible to purchase
additional option to connect to the section by Authorized Service VTS.
When the customer connect the section himself should follow the separate instructions,
supplied with AHU in the mounting set.
During connecting the section one should pay attention on the applying glue on the
casing locks (section connection without using glue will result in a lack of casing
tightness - warranty claims because of this will not be considered).
Optionally, in the mounting set provided with AHU can be included butyl tape, to
additional seal the connection of section. Additional seal at the connection of section is
recommended especially for the external AHUs
4.2 AHUs supplied in packages - for assembly on site
Assembly must be carried out on hardened and dry surface. Hardened surfaces are
understood as flat, leveled and hard surface, which does not change its properties under
influence of atmospheric conditions and is resistant to any damages relating to placing
the AHU on it as well as regular operation.
Assembly can be carried out in ambient temperature allowing to perform correctly all
technical procedures of the assembly, i.e. within temperature range: from +5 to +35ºC
In case of outdoor assembly, the procedure can be carried out in precipitation-free
conditions.
It is acceptable to start the assembly provided that all safety and security requirements
are met.
Minimal dimensions of an assembly location:
- AHU width + 4 meters (2 meters on each AHU side),
- AHU 4 meters (2 meters on each AHU side).
Connecting supplied blocks of VS 21-650 units as well as holding AHU to the foundation,
falls within the competence of the Client.
4.3 Ambient conditions for AHUs installation
The Ventus air-handling can be installed as well as inside the building as the outside (except the unit
with the humidity sections). Units can be installed and work on the external air with temperature from
-40°C to +60°C.
AHUs installed outside the building should be equipped with air intake and outlet equipment.
The unit operated outdoor should be regularly cleaned from the snow. Such units should have barrier
for protect against the snow, and base frame should placed on the level not lower than height of
snow level in that region.
In condition of the low temperatures, increase the heat lost, what can needs more reserve of the
heating capacity of the heaters. The heat node of the heating capacity regulation, three way valves,
water pumps, thermo-manometers, valves, as well as frequency converters should be placed in the
room with temperature higher than +5°C.
