Troubleshooting - Honeywell BA295STN Installation Instruction

8.3 Cleaning
• To be carried out by an installation company
• To be carried out by the operator
If necessary, the cartridge insert and the strainer can
be cleaned.
Do not use any cleaning agents containing
solvents or alcohol to clean the plastic parts!
Detergents must not be allowed to enter the
environment or the sewerage system!
1. Close shutoff valve
o Pressure in backflow preventer relieves
2. Unscrew the plug
3. Remove strainer
4. Remove cartridge insert
5. Clean cartridge insert and strainer
• Don't disassemble cartridge insert to indivi-
dual parts!
6. Reinsert cartridge insert.
7. Reassemble in reverse order
8. Test function (see chapter inspection)

10. Troubleshooting

Disturbance
Discharge valve opens without
apparent reason
Discharge valve don't close
Flow is to low
MU1H-1231GE23 R1106
GB
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
9
9. Disposal
• Dezincification resistant brass housing (Option A)
• Brass housing chromium plated (variant AC12)
• High-quality synthetic material valve cartridge
• High-quality synthetic material or red bronze check
valves
• Seals in NBR and EPDM
• High quality synthetic material discharge connection
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
Honeywell GmbH