Honeywell GmbH
7
MU1H-1034GE23 R1217
GB
10. Disposal
• Dezincification resistant brass housing
• Dezincification resistant brass valve insert
• Brass or plastic spring bonnet
• High-quality synthetic material adjustment knob and
setting scale
• Spring steel adjustment spring
• Fibre-reinforced EPDM diaphragm
• EPDM sealing washers
• EPP insulation shells
11. Troubleshooting
12. Spare Parts
13. Accessories
Observe the local requirements regarding correct waste
recycling/disposal!
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.
1
Spring bonnet complete
(D05FT-..A and
D05FT-..E)
1
/
2
" - 1"
0903919
1
1
/
4
" - 2"
0903920
Spring bonnet complete
(D05FT-..AGB and
D05FT-..CGB)
1
/
2
" - 1"
0901515
1
1
/
4
" - 2"
0903890
2
Valve insert complete
1
/
2
" - 1"
D05FA-1/2T
1
1
/
4
" - 2"
D05FA-11/4T
3
Replacement filter insert
1
/
2
" - 2"
ESD05FS
4
Hexagon-plug with
copper sealing-ring
R
1
/
4
" (5 pcs.)
all
S06M-1/4
M38T-A10 Pressure gauge
Housing
50 mm, below connection thread
G
1
/
4
"
Range: 0-10 bar
DS05
Insulation shells
Please indicate nominal size (1/2 to 2") when
ordering e.g. DS05-1/2
ZR06K
Double ring wrench
For removal of spring bonnet
VST06-A
Connection set
Threaded connections
VST06-AGB Connection set
With threaded connection (DZR)
VST06-B
Connection set
Solder connections