Maintenance
27
© Lutz-Jesco GmbH 2021
Subject to technical changes.
210527
BA-22404-02-V03
Chlorine changeover unit
C 7520
Operating instructions
The maintenance on the pressure gauge restricts itself to a visual check
and the cleaning of the connection.
Precondition for action:
ü
The system is prepared in accordance with section 12.3 „Preparing
the system for maintenance“ on page 24.
ü
The changeover unit is free of stress.
Resources required:
@
PTFE strip
@
Cotton swabs
@
Cleaning alcohol
Perform the following working steps:
1.
Disconnect the pressure gauge cable.
2.
Unscrew the pressure gauge from the pressure gauge connection.
Remove the old PTFE strip from the thread.
3.
Clean the input of the pressure gauge with cleaning alcohol. At the
same time, hold the pressure gauge with the connection facing
downwards so that soiling cannot fall into the device. Do not use a
pointed tool, so that the protective film on the plate spring is not de-
stroyed.
4.
If the pressure gauge is not immediately reconnected, seal the con-
nection airtight.
5.
Fit the pressure gauge with approx. 5 long PTFE strips.
6.
Reconnect the pressure gauge cable.
ü
Pressure gauge cleaned.
12.6 Functional control
Precondition for action:
ü
The changeover unit is ready for operation.
ü
Switch the selector switch on the motor to AUTO.
ü
Both chlorine supply batteries are closed.
Perform the following working steps:
1.
Switch on the voltage supply.
2.
Start the motive water pump.
3.
Open the drum valves of the 1st battery and confirm the full battery
to the changeover switch
4.
Open the drum valves of the 1st battery and confirm the full battery
to the changeover switch
5.
Close the drum valves of the 1st battery and observe the correct
switching to the 2nd battery. Battery.
6.
Open the drum valves of the 1st battery again and confirm readiness
at the control.
7.
Close the drum valves of the 2nd battery and observe the correct
switching to the 1st battery.
8.
Open the drum valves of the 2nd battery again and confirm readiness
at the control.
ü
Functional check performed.
12.7 Finishing maintenance
Perform the following working steps:
1.
Make a note of the date and scope of the maintenance performed.
2.
Attach a sticker displaying the maintenance date to the device.
3.
Close the control and tighten the cable screw connections.
4.
Restore all the other hydraulic connections of the changeover unit.
5.
Touch up damaged paint.
6.
To restart the system, proceed in accordance with the instructions in
section 9 „Commissioning“ on page 20.
ü
Maintenance completed.
