Header connection
8
SKS 4.0 Series - Flat roof and wall mounting - We reserve the right to make any changes due to technical modifications.
37
8.3
De-airing through air vent (accessory) at highest point in the system
If you intend to vent the solar thermal system with an
automatic air-vent valve (accessory) at the highest point
of the system, run the flow line rising to the air-vent valve
(Fig. 58,
Item 2
) and the return line rising to the collector
array (Fig. 58).
Avoid frequent changes in direction.
If you cannot provide an automatic air vent valve due to
space restrictions, install a manual air vent valve.
Function of the grub screw and weather protection
cap on the automatic air vent valve
The solar thermal system is vented through the opened
grub screw. When in operation, the weather protection
cap (Fig. 59,
Item 1
) must always be positioned over
the grub screw to prevent moisture entering through the
opened grub screw into the solar thermal system).
Open the air vent valve by unscrewing the grub screw
one full revolution.
Universal air vent set (Fig. 59):
Fig. 58
View — air pot with vent valve for flow connection
Item 1:
Collector sensor
Item 2:
Automatic air vent valve on roof
63043966.20-1.SD
63043966.20-1.SD
2
1
USER NOTE
For each change of direction downwards
and each new rise, install an additional air
pot with air vent.
Fig. 59
Universal air vent set
63043966.21-1.SD
63043966.21-1.SD
2
1
3
4
5
8
9
10
6
11
7
Item 1:
Weather protection cap
1
×
Item 2:
Automatic air vent
1
×
Item 3:
Ball valve
1
×
Item 4:
Gasket
1
×
Item 5:
Vent pot
1
×
Item 6:
Double threaded fitting with O-ring
1
×
Item 7:
Threaded fitting
1
×
Item 8:
Union nut
2
×
Item 9:
Gasket
1
×
Item 10:
Large diameter washer
1
×
Item 11:
Clamping disc
1
×
