Troubleshooting - Honeywell BA295STN-3/4WH Installation Instruction

10. Troubleshooting

Disturbance
Discharge valve opens without
apparent reason
Discharge valve does not close Deposits on valve seat
Flow is to low
11. Spare Parts
1 Cartridge insert
2 Check valve insert
3 Filter
4 Set of blanking plugs
3
1
4
2
MU1H-1241GE23 R0710
Cause
Pressure strokes in water supply system Install a pressure reducing valve
Fluctuating inlet pressure
Cartridge insert is contaminated
Damaged 'o'ring
Leaky discharge valve
Inlet strainer is blocked
/ " - 1" 0903733
1
2
/ " - 1" 2110200
1
2
/ " - 1" S295STN
1
2
/ " - 1" 0903886
1
2
GB
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
12. Accessories
TK295 Test kit
Electronic pressure measuring device
with digital indicator, battery-operated.
With case and accessories, ideal for
inspection and maintenance of backflow
preventer type BA.
TKA295 Test kit
Analogue pressure measuring device with
differential pressure display.
With case and accessories, ideal for
inspection and maintenance of backflow
preventer type BA.
WS295STN Maintenance-set
Maintenance-set for BA295STN type
backflow preventers for use with Test kit
TK295 resp. TKA295
TK295
1x
7
TKA295
3x
Honeywell GmbH