Honeywell GmbH
10
MU1H-1355GE23 R1012
GB
9.1.3. Safety valve
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
9.2. Maintenance
9.2.1. Pressure reducing valve
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Loosen slotted screw
• Do not remove slotted screw
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
15. Set outlet pressure and adjust setting scale
9.2.2. Check valve
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Replace check valve
5. Slowly open shut off valves on inlet and outlet
9.3. 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 shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Fit pressure gauge
5. Loosen slotted screw
• Do not remove slotted screw
6. Slowly open shutoff valve on inlet
7. Set desired outlet pressure (e.g. 4 bar)
8. Align scale (e.g. 4) in middle of viewing window
9. Retighten slotted screw
10. Slowly open shutoff valve on outlet
9.4. Cleaning
If necessary, the filter bowl and the filter can be cleaned.
1. Close shutoff valve on inlet
2. Release pressure on outlet side (e.g. through water tap)
3. Close shutoff valve on outlet
4. Unscrew filter bowl
• Use double ring wrench ZR06K
5. Remove filter, clean and reinsert
6. Place O-ring onto filter bowl
7. Screw in filter cup hand-tight (up to max. 18Nm)
8. Slowly open shutoff valve on inlet
9. Slowly open shutoff valve on outlet
10. Disposal
• Dezincification resistant brass housing
• Brass threaded connections
• Stainless steel filter mesh on pressure reducing valve
• Transparent synthetic material filter bowl on pressure
reducing valve
• High grade synthetic material pressure reducing valve
insert, spring bonnet with adjuster knob, shutoff valves,
test socket, check valve, safety valve insert and drain
connector
• Fibre-reinforced NBR diaphragm
• NBR seals
• EPP insulation shells
Frequency: every 6 month
Frequency: every 1-3 years (depending on local
operating conditions)
To be carried out by an installation company
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 slak-
kened!
Press in diaphragm with finger before inserting slip ring
Screw in filter cup hand-tight (up to max. 18Nm)
To be carried out by an installation company
Caution !
Do not use any cleansers that contain solvents and/or
alcohol for cleaning the plastic parts, because this can
cause damage to the plastic components - water
damage could result.
To be carried out by an installation company or the
operator.
Detergents must not be allowed to enter the environ-
ment or the sewerage system!
Observe the local requirements regarding correct
waste recycling/disposal!
