GB
MU1H-1019GE23 R0120
3
6.2 Maintenance
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.
Detergents must not be allowed to enter the
environment or the sewerage system!
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.
Remove filter and clean
10.
Check that sealing ring, edge of nozzle and slotted
ring are in good condition, and if necessary replace
the entire valve insert
11.
Reassemble in reverse order
Press in diaphragm with finger before inserting slip
ring
12.
Adjust setting scale and set outlet pressure
7
Disposal
Observe the local requirements regarding correct waste
recycling/disposal!
8
Troubleshooting
9
Spare Parts
For Spare Parts visit homecomfort.resideo.com/europe
10 Accessories
For Accessories visit homecomfort.resideo.com/europe
Problem
Cause
Remedy
Beating sounds
Pressure reducing valve is too large
Call Technical Customer Service
Water is escaping from the spring bonnet Diaphragm in valve insert is faulty
Replace valve insert
Too little or no water pressure
Shut-off valves up- or downstream of the
pressure reducing valve are not fully
open
Open the shut-off valves fully
Pressure reducing valve is not set to the
desired outlet pressure
Set outlet pressure
Filter in pressure reducing valve is
contaminated
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
contaminated 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.
