Maintenance
Minor maintenance
21
© Lutz-Jesco GmbH 2018
Subject to technical changes
180321
BA-24721-02-V02
Chlorine gas changeover unit
C 7523
Operating instructions
11 Maintenance
DANGER
Mortal danger from electric shock!
Live parts can inflict fatal injuries.
ð
Before carrying out any maintenance work, always disconnect the
device from the power supply.
ð
Secure the system to prevent it from being switched on by
accident.
DANGER
Danger to life from chlorine poisoning!
Do not carry out maintenance or any other work on the chlorinator until
the system has been decommissioned and all of the chlorine gas has
been removed from the lines. The failure to follow this instruction pre-
sents a significant risk of injury.
ð
Prior to any maintenance work, prepare the system in accordance
with section 11.3 “Preparing the system for maintenance” on
page 21.
ð
Use a breathing apparatus with gas filter type B that complies with
EN 14387 when dismantling the device.
NOTE
Damage to the system due to corrosion
Water in chlorine carrying system components combines with chlorine
to form hydrochloric acid and leads to corrosion.
ð
After maintenance work is complete, remove all water residues
from the system before placing it into operation.
11.1 Maintenance intervals
To avoid hazardous incidents, chlorinators must be regularly maintained.
This table gives you an overview of maintenance work and the intervals
at which you must carry it out. The next few sections provide instructions
for carrying out this work.
Interval
Maintenance
After 1 year
Minor maintenance:
n
Cleaning the device
n
Change the connection seals
n
Functional control
After 3 years
Major maintenance:
n
Cleaning the device
n
Replace all elastomers
n
Functional control
After 5 years
n
Replace the contact gauge
Table 26: Maintenance intervals
i
In some cases, regional regulations may require shorter main-
tenance intervals. Maintenance intervals depend only on how
frequently the equipment is used. Chemical wear of rubber
parts, for example, begins with the initial medium contact and
continues irrespective of the usage.
Maintenance sets are listed in chapter 13 “Spare parts” on page 26.
11.2 Maintenance accessories
Description
Silicone grease, medium viscosity 35 g
for application to seals
Plastic tools
for dismantling O-rings
Table 27: Maintenance accessories
11.3 Preparing the system for maintenance
Perform the following working steps:
1.
Close the chlorine tank valves.
2.
Use the injector to suck off the remaining chlorine.
3.
Run the chlorinator for approximately five minutes with nitrogen or
dry compressed air.
4.
Switch off the injector.
ü
The system is prepared for maintenance.
11.4 Minor maintenance
Precondition for action:
ü
The system has been prepared for maintenance (see chapter 12.3).
ü
New connection seals are available.
Fig. 18: Connection seals
