Hoval RoofVent CON-9, Design Handbook

Page: 142 / 280

140
7 Transport and installation
7.1 Assembly
Caution
Risk of injury as a result of incorrect handling. Have
transport and assembly work carried out by trained
specialists !
RoofVent
®
twin pump units are delivered in 4 sections (roof
unit, combi box, heating/cooling section with Air-Injector and
heat pump) on a wooden pallet. Associated parts are labelled
with the same unit number.
The following guidelines are important when preparing for
assembly:
Ventilation unit
■ A forklift truck or a crane is required for assembling the
below-roof unit on site.
■ The units are assembled from roof level. A crane or heli-
copter is required.
■ To transport the unit to the roof, 2 hoisting slings are
required (approx. length 6 m). If steel cables or chains are
used, the unit corners must be properly protected.
■ Make sure that the roof frames correspond to the specifi-
cations in Section M 'System design.'
■ Define the desired orientation of the units.
■ The units are held in the roof frame by means of their own
weight. Silicone, PU foam or similar is required for sealing.
■ For units with exhaust air silencers, additional attachment
to the roof frame is required.
■ Follow the assembly instructions included.
Fig. F5: RoofVent
®
roof
units are installed from
roof level.
Heat pump
■ Allow sufficient space for maintenance work as well as for
the air inlet and air outlet.
ERQ250 RoofVent
≥ 800 mm
Fig. F6: Recommended minimum clearance
■ Ensure that the air inlet and air outlet are not pointing in
the prevailing wind direction. If necessary, fit wind protec-
tion for the unit.
■ Observe the limitations for the piping length of the liquid
line:
≥ 5 m
≤ 50 m
≤ 30 m
Fig. F7: Pipe length and height difference
■ Install the heat pumps on a solid foundation (steel frame
or concrete).
722-737
≥
67
≥
67
765
≥
150
67
67
930
792
7
Fig. F8: Foundation dimensions (in mm)
■ Attach the units with 4 anchor bolts M12.
■ Install a channel around the foundations to drain off
condensate.
■ Observe the installation instructions provided.
RoofVent
®
twin pump
Transport and installation