Vaillant aurotherm classic VFK 135/2 VD Installation Manual page 14

4 On-roof fitting and installation
4. Secure the mounting rails with the clamping elements to
the roof anchors ((1) and (2)).
5. Position the lower rail as far as possible downwards on
the roof bracket.
Taring mounting rails
1
6. Secure the mounting rails horizontally.
7. Compensate for any height differences by moving the
clamping elements.
8. To do this, pull the clamping element upwards (1),
move it (2) and release it so that it engages.
Laying and hooking collectors
Danger!
Risk of burns and scalding!
In the event of solar radiation inside the units,
collectors can reach 200 °C.
▶ Avoid working in direct sunlight.
▶ Cover the collectors before starting work.
▶ You should preferably perform the work in
the morning.
▶ Wear suitable safety gloves.
9. Lay the lower edge of the first collector in the lower
mounting rail and hook it in at the clamping elements
(1).
10. Ensure that the top clamping block of the clamping ele-
ment is positioned above the edge of the collector.
11. Tighten the clamping elements of the lower mounting
rail.
–
Working materials: SW 13 spanner
14
2
1
Fitting connectors
A
B
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶
Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
12. Insert the hydraulic connectors into the provided mount-
ing openings at the side of the previously installed col-
lector until they reach the stop position.
13. Secure the connectors with the clamps, slide the clamp
into the guide from the top for the top connection and
from the bottom for the lower connection.
Connecting mounting rails
14. Insert the connecting elements laterally into the mount-
ing rails until you feel them engage (1).
15. Slide the mounting rails of the next collector onto the
mounting rails of the previously installed collector (1).
16. Secure the mounting rails for the next collector onto the
roof brackets using the clamping elements.
17. Tare the mounting rails. (→ Page 14)
Installation manual auroTHERM classic 0020159946_01
1