5 Maintenance [specialist]
14
9976x0210x-mub-en – V01
2020/09
5
Maintenance [specialist]
5.1
Draining the solar system
1.
Switch off the controller and secure it against
being switched on again.
2.
Open the check valve in the return ball valve [1.2]
by turning the ball valve into position 45°
(see page 10
).
Open the check valve possibly present in the flow
line.
3.
Connect a heat-resistant hose to the lowest drain
valve of the solar installation (possibly drain valve
[3.2]). Make sure that the solar fluid is collected
in
a heat-resistant container.
WARNING
Danger of scalding due to hot solar fluid!
The escaping solar fluid can be very hot!
Position and secure the heat-resistant collecting container such that
persons nearby are not put at risk when the solar system is drained.
4.
Open the drain valve at the lowest point of the solar installation.
5.
Open the vent valve possibly present at the highest point of the
solar installation.
6.
Dispose of the solar fluid observing the local regulations.
5.2
Deinstallation
1.
Drain the solar installation as described above.
2.
Disconnect the pipe connections to the solar installation.
3.
To remove the solar station from the mounting plate, pull out
the clip springs laterally with a screwdriver.
4.
Remove the station by pulling it forward.
