Troubleshooting
28
Vacuum Regulator for Chlorine Gas
C 2700-V
© Lutz-Jesco GmbH 2016
Operating Instructions
BA-21210-02-V05
11 Troubleshooting
Problem
Possible cause
Remedy
No or too little dosing
The chlorine container is empty
Connect a new chemical container
The container valve or a valve in the chlorine supply is
closed or not fully open.
Open the valves fully
The connection line on the chlorine container is blocked or
bent
Clean or replace the line
The filter in the chlorine gas line is blocked (can be recog-
nised by the low pressure on the input to the vacuum
regulator)
Clean and exchange the filter Use chlorine gas of a better
quality
The supply pressure for the vacuum regulator is too low
Increase the outlet pressure of the pressure reducing
valve
Vacuum is too low due to ...
... a leak in the line
Tighten all screw connections in the vacuum line Check
the O-rings
... a leak in the dosing device
See the troubleshooting section in the dosing device’s
operating manual
... reduced injector performance
See the troubleshooting section in the injector’s operating
manual
... a leak in the vacuum regulator (can be recognised by
the permanent drawing in of air at the vent line).
Maintain the vacuum part
Vent line draws air in
continuously
Diaphragm is not installed correctly, torn
Maintain the vacuum part
There is dirt in the safety valve, the rubber tube piece is
faulty, PVC tap below the rubber tube piece is damaged.
Maintain the vacuum part
Smell of chlorine in the
room
The safety valve opens as the inlet valve cannot close
completely due to dirt
Maintain the inlet valve If necessary install a chlorine gas
filter
There is a leak on the overpressure line
Localise and repair the leak using the ammonia test
The injector non-return valve is not tight and returning
water creates overpressure in the vacuum line The safety
valve responds
Carry out maintenance on the injector non-return valve
PVC parts have been
badly attacked or liquid
chlorine in the flow
meter
Chlorine gas condenses to form liquid chlorine as the
temperature at the inlet valve is lower than the tempera-
ture at the chlorine barrel
Install the pressure reducing valve Install tube heating
directly in front of the inlet valve Install the moisture elimi-
nator
Condensed chlorine collects at the lowest point of the pipe
system and enters the vacuum regulator
Install the vacuum regulator at the highest point Lay the
supply line so that is ascends continuously
Ice or a lot of conden-
sation at the inlet valve
or on the pressure line
Chlorine withdrawal is too high
Connect additional chlorine barrels
Drop in pressure at the not fully open valves causes
extreme cooling due to expansion
Open the valves fully
Water in the device
The injector non-return valve is not tight
Carry out maintenance on the injector non-return valve If
necessary install a second non-return valve
The end of the vent line is not protected against the
entrance of water
Lay the vent line accordingly Point the end of the line
downwards
Vibrations in the
system
The installation coincidentally hits the resonance
frequency of the vacuum regulator
Change the setting of the pressure reducing valve or
slightly restrict the stop valve ahead of the vacuum regu-
lator.
Table 11-1: Troubleshooting
