Vaillant aurotherm classic VFK 135/2 VD Installation Manual page 32

5 Flat roof fitting and installation
Securing the collector at the top
2
14. Slide the left side of the top mounting rail (1) until it is
flush with the collector.
15. Ensure that the mounting rail (1) surrounds the top
edge of the collector.
16. Screw the bracket securely on the top left (2).
–
Working materials: 5 mm Allen key
17. Ensure that the mounting rail does not slip while you
are tightening the screw.
Installing hydraulic 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).
18. Remove the delivery plugs from the mounting open-
ings.
19. Insert the top (1) and bottom (2) pipe connectors into
the mounting openings until the stop.
20. Slide the clamps into the rails of the mounting openings
(2).
32
Installing additional collectors
1
A
B
21. Position the next collector on the lower mounting rail.
22. Slide the collector to the first collector.
Caution.
Risk of damage to the collector.
Improper installation of the pipe connectors
may damage the collector.
▶
1
23. Secure the top and bottom hydraulic connectors with
the clamps ((1) and (2)).
24. Slide the second top mounting rail until it is flush with
the collector.
25. Screw the second top mounting rail tightly onto the
mounting rail of the first collector using the correspond-
2
ing bracket.
–
Working materials: 5 mm Allen key
Completing collector rows
Conditions: Not all collectors in a row have been installed yet.
▶
Install the hydraulic connectors. (→ Page 32)
▶
Install an additional collector. (→ Page 32)
5.2.3 Installing hydraulic connections
Caution.
Leak caused by incorrect accessories.
Incorrect accessories may result in a leak in
the solar circuit and cause material damage.
▶
The text that follows describes the installation of the hy-
draulic connections for the collector in the case of "adjacent"
array configuration.
Installation manual auroTHERM classic 0020159946_01
Ensure that the clamps (A) slide into the
grooves of the pipe connector (B).
Only work in the solar circuit with hard
soldered connections, flat seals, compres-
sion fittings or press fittings which have
been approved by the manufacturer for
use in solar circuits and at correspond-
ingly high temperatures.
1
2