Honeywell GmbH
5
MU1H-1005GE23 R1112
GB
• If the pressure is increasing slowly, the valve may be
dirty or defective. In this instance, carry out servicing
and cleaning
3. Slowly open shutoff valve on outlet
9.2. Maintenance
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 hexagon nut
5. Slacken tension in compression spring
• Turn control adjustment screw to the left (-) until it does
not move any more
6. Unscrew spring bonnet
7. Check that diaphragm, seals, guide and seating bush are
in good condition, and if necessary replace them
8. Reassemble in reverse order
10. Disposal
• Red bronze housing
• High-quality synthetic material valve insert
• Brass spring bonnet
• Stainless steel filter mesh
• Brass filter bowl
• Spring steel adjustment spring
• Fibre-reinforced NBR diaphragm
• NBR seals
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!
Observe the local requirements regarding correct waste
recycling/disposal!
11. Troubleshooting
12. Spare Parts
Problem
Cause
Remedy
Beating sounds
Pressure reducing valve is too
large
Call our Technical Customer Services
Water is escaping from the spring
bonnet
Diaphragm is faulty
Replace diaphragm
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
Pressure reducing valve is not fitted in flow
direction
Fit pressure reducing valve in flow direction
(note direction of arrow on housing)
13. Accessories
No.Description
Dimension Part No.
1
Valve insert complete
DN 15 + 20 D16A-15
for D16
DN 25 + 32 D16A-25
DN 40
D16A-40
2
Hexagon-plug with copper
sealing-ring R
1
/
4
" (5 pcs.)
all
S06M-1/4
3
Replacement filter
DN 15 + 20 ES16-15
insert
DN 25 + 32 ES16-25
DN 40
ES16-40
4
O-ring
DN15 + DN200901246
(10 pcs)
DN25 + DN320901247
DN40
0901248
5
Brass filter bowl
DN15 + DN20SM06T-1/2
with o-ring
DN25 + DN32SM06T-1A
DN40
SM06T-11/2
FN09S-AMHABEDO ® Retrofit filter
Reverse-rinsing filter with red bronze filter cup for
retro-conversion of a pressure reducing valves to
a filter combination unit
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
ZR06K
Double ring wrench
For removal of spring bonnet and filter bowl