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5.
Loosen slotted screw
• Do not remove slotted screw
6.
Slowly open shut-off valve on inlet
7.
Set desired outlet pressure (e.g. 4 bar)
8.
Align scale (e.g. 4) in middle of viewing window
9.
Re-tighten slotted screw
8
Troubleshooting
Problem
SG150 and SG150D
Drips
Check valve does not close off tightly in
the front pressure area
Too little or no water pressure
SG150D only
Water is escaping from spring hood
Too little or no water pressure
The outlet pressure set does not remain
constant
9
Spare Parts
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10 Accessories
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GB
10.
7
Observe the local requirements regarding correct waste
recycling/disposal!
Cause
During the heating up of the water heater no error, normal function
Continually drips from soiling
Pressure increase in the front pressure
area
Seal surfaces dirty or worn
Cut-off fixtures before or after the safety
group not opened entirely
Safety group not installed in the flow
direction
Valve insert diaphragm damaged
Pressure reducing valve is not set to the
desired outlet pressure
Filter in pressure reducing valve is
contaminated
Filter in pressure reducing valve is
contaminated or worn
Valve insert, sealing ring or edge of
nozzle is contaminated or worn
Rising pressure on outlet (e.g. in boiler) Check check valve, safety group etc.
Expansion water from the hot water
purifier
4
Slowly open shut-off valve on outlet
Disposal
Remedy
Actuate lifting grip multiple times so that
dirt particles are flushed out, or replace
as necessary
Replace check valve
Replace check valve
Open shut-off valves fully
Install safety group in flow direction
(observe arrow direction on housing)
Exchange valve insert
Set outlet pressure
Replace filter
Replace filter
Replace valve insert
Inspect check valve before the hot water
purifier and single-lever mixing valve if
necessary
Close shut-off valves to the hot water
purifier supply line. Open hot water tap
connection. Does pressure remain
constant? Expansion water of the hot
water purifier. Does pressure increase?
Pressure reducer defect
MU1H-1355GE23 R0420
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