GB
MU1H-1355GE23 R0420
3
• Do not remove slotted screw
5.
Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until
it does not move any more
6.
Slowly open shut-off valve on inlet
7.
Turn control handle until the setting scale shows the
desired value
8.
Retighten slotted screw
9.
Slowly open shut-off valve on outlet
6
Maintenance
In order to comply with EN 806-5, water fixtures must
be inspected and serviced on an annual basis.
As all maintenance work must be carried out by an
installation company, it is recommended that a
servicing contract should be taken out.
In accordance with EN 806-5, the following measures must
be taken:
6.1 Inspection
6.1.1 Pressure reducing valve
1.
Close shut-off valve on outlet
2.
Check outlet pressure using a pressure meter when
there is zero through-flow
• If the pressure is increasing slowly, the valve may
be dirty or defective. In this instance, carry out
servicing and cleaning (See 6.2 Maintenance)
3.
Slowly open shut-off valve on outlet
6.1.2 Check valve
1.
Close shut-off valve on inlet
2.
Open test valve
• Until the pressure is released, some water will flow
out of the test valve. After a short period of time the
water flow should stop. If the water continues to
drip or run, then the check valve must be replaced
(see 6.2 Maintenance)
3.
Close test valve again
4.
Slowly open shut-off valve on inlet
6.1.3 Safety valve
Frequency: every 6 month
1.
Actuate lifting device
2.
Release lifting device
•
Shut-off valve closes
•
available water flows completely off
Malfunction:
1.
Actuate lifting device multiple times, if necessary
initiate repairs
6.2 Maintenance
6.2.1 Pressure reducing valve
1.
Close shut-off valve on inlet
2.
Release pressure on outlet side (e.g. through water
tap)
3.
Close shut-off valve on outlet
4.
Loosen slotted screw
• Do not remove slotted screw
CAUTION!
There is a spring in the spring bonnet. It may cause
injuries if the spring is derailing.
• Make sure tension in compression spring is
slackened!
5.
Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until
it does not move any more
6.
Unscrew spring bonnet
• Use double ring wrench ZR06K
7.
Remove slip ring
8.
Remove valve insert with a pair of pliers
9.
Unscrew filter bowl
• Use double ring wrench ZR06K
10.
Remove slotted ring
11.
Check that sealing ring, edge of nozzle and slotted
ring are in good condition, and if necessary replace
the entire valve insert
12.
Remove filter, clean and reinsert
13.
Place O-ring onto filter bowl
14.
Reassemble in reverse order
Press in diaphragm with finger before inserting slip
ring
Screw in filter cup hand-tight (up to max. 18Nm)
15.
Set outlet pressure and adjust setting scale
16.
Slowly open shut-off valve on inlet
17.
Slowly open shut-off valve on outlet
6.2.2 Check valve
1.
Close shut-off valve on inlet
2.
Release pressure on outlet side (e.g. through water
tap)
3.
Close shut-off valve on outlet
4.
Replace check valve
5.
Slowly open shut-off valves on inlet and outlet
6.3 Adjusting the setting scale
If the adjustment knob is removed, this setting is lost. A new
setting can be achieved using a pressure gauge.
1.
Close shut-off valve on inlet
2.
Release pressure on outlet side (e.g. through water
tap)
3.
Close shut-off valve on outlet
4.
Fit pressure gauge
