9. Disposal
• Red bronze housing
• High-quality synthetic material valve cartridge
• High-quality synthetic material or red bronze check
valves
• Brass ball valves
• Sealing elements made of elastomer materials
suitable for drinking water
• Discharge connection
DN15-25 High quality synthetic material
DN32-50 Red bronze
Observe the local requirements regarding
correct waste recycling/disposal!
10. Troubleshooting
Disturbance
Discharge valve opens without
apparent reason
Discharge valve don't close
Flow is to low
MU1H-1220GE23 R0809
GB
Cause
Pressure strokes in water supply
system
Fluctuating inlet pressure
Cartridge insert is contaminated
Deposits on valve seat
Damaged 'o'ring
Leaky discharge valve
Inlet strainer is blocked
8
Remedy
Install a pressure reducing valve 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
Honeywell GmbH