Alfa Laval C MRPX 714HGV-74C User Manual

8.2 Sediment discharge function 8 Trouble tracing
60
8.2.1 OWMC related faults
1) See Installation Manual
2) See “Operating water module (OWMC)”
in Service & Maintenance Manual
3) See Installation Manual, “Connection
list” , connection 375
Indication Cause Corrective actions Page
The bowl does not eject
or the volume is too
small
Needle valve for setting of
small discharge is throttled
too much
Adjust the throttling 40
Air pressure for setting of
large discharge is too low
Adjust the air pressure 40
No supply or signal air to
the OWMC
Check the air supply –
Faulty check valve in
operating water feed line
before the OWMC inlet
Check function of the valve –
OWMC piston does not
return to its initial
position or returns too
slowly
Impurities in water or air
which increase friction
between piston and
cylinder
Follow the instructions
carefully for air and water
quality.
1)
Clean and lubricate piston
and cylinder with
GLEITMO 1821V
2)
Too low operating water
pressure in the feed line
before the OWMC
Check the operating water
pressure
3)
Silencer for air outlet in the
OWMC is clogged
Renew the silencer –
Faulty check valve in
operating water feed line
before the OWMC inlet
Check function of the valve –
The discharged volume
too large
Faulty sealing for the two-
pulse adapter
Renew the sealing 2)
pos. 8
Too high pressure of the air
supply (506a).
Reduce the air pressure 40
Bowl fails to close after
sediment discharge
Clogged nozzle fitted in the
two-pulse adapter
Clean the nozzle 2)

Alfa Laval C MRPX 714HGV-74C Specifications

General

Brand	Alfa Laval
Model	C MRPX 714HGV-74C
Category	Water Filtration Systems
Language	English