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5.2 Maintenance
5.2.1 Cartridge insert
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.
Remove cover
5.
Replace cartridge insert and lip seal
CAUTION!
Don't disassemble cartridge insert to individual
parts!
6.
Reassemble in reverse order
• push down the cartridge insert till it snaps in
7.
Test function (see 5.1 Inspection - acc. EN806-5)
5.2.2 Check valve
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
CAUTION!
DN50 is under spring tension.
The unsnapping of the lid can cause physical
injuries.
4.
Remove cover
5.
Exchange check valve
6.
Reassemble in reverse order
7.
Test function (see 5.1 Inspection - acc. EN806-5)
7
Troubleshooting
Problem
Discharge valve opens without apparent
reason
Discharge valve does not close
Flow is too low
8
Spare Parts
For Spare Parts visit homecomfort.resideo.com/europe
9
Accessories
For Accessories visit homecomfort.resideo.com/europe
MU0H-1271GE23 R0819
All manuals and user guides at all-guides.com
Cause
Pressure strokes in water supply system Install a pressure reducing valve
Fluctuating inlet pressure
Cartridge insert is contaminated
Deposits on valve seat
Damaged 'o'ring
Leaky discharge valve
Inlet strainer is blocked
GB
5.3 Cleaning
If necessary, the cartridge insert can be cleaned.
CAUTION!
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.
Remove cover
5.
Clean or replace cartridge insert and lip seal
CAUTION!
•
Don't disassemble cartridge insert to individual parts!
6.
Reassemble in reverse order
• push down the cartridge insert till it snaps in
7.
Test function (see 5.1 Inspection - acc. EN806-5)
6
Disposal
Observe the local requirements regarding correct waste
recycling/disposal!
Remedy
upstream the backflow preventer
Install a pressure reducing valve
upstream the backflow preventer
Remove cartridge insert and exchange it
Remove cartridge insert and clean or
exchange it
Remove cartridge insert and exchange it
Remove cartridge insert and clean or
exchange it
Remove strainer and clean it
5
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