Rainwater And Drinking Water Feed; Cleaning The Solenoid Valve - Pontos AquaCycle 2500 Instrucciones De Montaje

7.8. Rainwater and drinking
water feed
The rainwater and drinking water feeds VA4.1
and VA4.2 go into operation when not enough
process water can be provided via the
treatment.
Here, the rainwater feed VA4.1 takes
precedence over the drinking water feed
VA4.2.
7.8.1. Cleaning the solenoid
valve
There are three solenoid valves (VA3, VA4.1,
VA4.2) on the system. One of them opens the
filter backflush VA3, the other ones open the
rainwater and drinking water feeds
(VA4.1/VA4.2). If one of the solenoid valves
does not close correctly, it must be cleaned or,
if necessary, replaced.
A dirt trap strainer is installed upstream of the
solenoid valve VA4.1 and VA4.2. Inspect this
occasionally for contamination.
For the safety instructions, see the start of
chapter 7.
The solenoid are closed de-
energised!
1. It must be guaranteed that the pressure
pump will not start up.
2. Close the shut-off valve to the consumers
and to the drinking water and rainwater
feed.
3. Remove the coil with the cube connector
(bayonet fastening).
EN 54
Operating Manual AquaCycle 2500
4. Undo the four screws of the mounting plate
(normally Torx).
5. Tilt the mounting plate with the coil shaft
downwards and remove from the valve.
Note: In the coil shaft, there is a
core behind which a core
compression spring is located.
This spring must on no account be
lost!
6. Pull out the sealing diaphragm with long-
nosed pliers.
7. Check the diaphragms and the valve
interior for dirt and clean.
8. Reassemble the solenoid valve.
When inserting the coil shaft,
check that the core compression
spring is still in place!
9. Open the shut-off valve.
10. Check that the solenoid valve is
functioning correctly.
The solenoid valve must be replaced if it is not
functioning smoothly even after having been
cleaned repeatedly.
Removing the coil
Components of the valve
Version 2.5