GB
4
MU1H-1355GE23 R0420
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
10.
Slowly open shut-off valve on outlet
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
SG150 and SG150D
Drips
During the heating up of the water heater no error, normal function
Continually drips from soiling
Actuate lifting grip multiple times so that
dirt particles are flushed out, or replace
as necessary
Check valve does not close off tightly in
the front pressure area
Pressure increase in the front pressure
area
Replace check valve
Seal surfaces dirty or worn
Replace check valve
Too little or no water pressure
Cut-off fixtures before or after the safety
group not opened entirely
Open shut-off valves fully
Safety group not installed in the flow
direction
Install safety group in flow direction
(observe arrow direction on housing)
SG150D only
Water is escaping from spring hood
Valve insert diaphragm damaged
Exchange valve insert
Too little or no water pressure
Pressure reducing valve is not set to the
desired outlet pressure
Set outlet pressure
Filter in pressure reducing valve is
contaminated
Replace filter
The outlet pressure set does not remain
constant
Filter in pressure reducing valve is
contaminated or worn
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.
Expansion water from the hot water
purifier
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
