MU1H-1054GE23 R0215
5
Honeywell GmbH
GB
8. Remove filter and clean
9. Check that sealing ring, edge of nozzle and ’o’-ring are in
good condition, and if necessary replace the entire valve
insert
10. Reassemble in reverse order
11. Set outlet pressure
7.3. Cleaning
If nesseccary, 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. Slacken tension in compression spring
• Turn adjustment handle counter clockwise (-) until it
does not move any more
5. Unscrew spring bonnet
6. Remove valve insert with a pair of pliers
7. Remove filter, clean and reinsert
8. Reassemble in reverse order
9. Set outlet pressure
8. Disposal
• Dezincification resistant brass housing
• High-quality synthetic material valve insert
• High-quality synthetic material spring bonnet
• Spring steel adjustment spring
• Fibre-reinforced EPDM diaphragm
• EPDM sealing
Press in diaphragm with finger before inserting slip ring
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!
Press in diaphragm with finger before inserting slip ring
Observe the local requirements regarding correct
waste recycling/disposal!
9. Troubleshooting
10. Spare Parts
11. Accessories
Problem
Cause
Remedy
Beating sounds
Pressure reducing valve is too
large
Call our Technical Customer Services
Water is escaping from the spring
bonnet
Diaphragm in valve insert is faulty
Replace valve insert
Too little or no water pressure
Shutoff valves up- or downstream of the
pressure reducing valve are not fully open
Open the shutoff valves fully
Pressure reducing valve is not set to the
desired outlet pressure
Set outlet pressure
Filter in pressure reducing valve is conta-
minated
Clean or replace filter
Pressure reducing valve is not fitted in flow
direction
Fit pressure reducing valve in flow direction
(note direction of arrow on housing)
The outlet pressure set does not
remain constant
Filter in pressure reducing valve is conta-
minated or worn
Clean or replace filter
Valve insert, sealing ring or edge of nozzle
is contaminated or worn
Replace valve insert
Rising pressure on outlet (e.g. in boiler)
Check check valve, safety group etc.
No. Description
Dimension
Part No.
1
Valve insert
complete
3/8" - 3/4"
D04FMA-1/2
2
Blanking plug
with O-ring R1/4"
(5 pcs.)
S06K-1/4
M38K Pressure gauge
Housing diameter 50 mm, below connection thread
G1/4". Ranges: 0 - 4, 0 - 10, 0 - 16 or 0 - 25 bar.
Please indicate upper value of pressure range when
ordering
When attaching a pressure gauge please use a sealing
tape that is approved by the local water regulator