Vaillant aurotherm classic VFK 135/2 VD Installation Manual page 29

▶ When positioning the rack feet, ensure that the anti-
rotation lock (2) engages.
▶ Secure the rack feet with the self-locking nut (3).
▶ Secure the rear rack feet in the same way on the other
two load plates.
◁
The first rack is installed so that it is stable.
▶ Install the second rack on the load plates as described
above.
▶
Mount as many racks and load plates as you need to
hold the collectors.
Note
For one collector, you will need two racks.
For each additional adjacent collector, you will
need an additional rack.
▶
Align all racks with the load plates in their final position
on the flat roof.
▶ The rack clearances can be found in the chapter "Defin-
ing rack clearances".
0020159946_01 auroTHERM classic Installation manual
Flat roof fitting and installation 5
Placing load weights on load plates
▶
Transport the required number of loading weights to the
flat roof.
▶ Place the load weights on the load plates as shown
above.
▶ Ensure that the distance between the loading weights
and the racks is as small as possible.
Danger!
Risk of death due to inadequate fastening
of the load weights onto the load plates!
If the load weights are inadequately secured
on the load plates, collectors could fall from
the roof and cause life-threatening acci-
dents.
▶ Secure all load weights on the load plates
adequately against slipping and tilting.
▶ Distribute the load weights evenly over the load plates.
Conditions: Type of installation: Floating installation (without load plates)
Preparing weights
Caution.
Leak caused by destruction of the roof
skin.
In the event of destruction of the roof skin,
water may penetrate the building.
▶ Ensure adequate protection of the roof
skin during installation on roof sealing
surfaces.
▶ Place large-area, non-slip building pro-
tection mats underneath the installation
system.
▶
If the roof is covered with gravel, remove the gravel at
the places where you wish to position the weights, and
use non-slip building protection mats to protect the roof
skin.
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