4.3.2 Door safety switch
The OZONFILT
®
OZVb is provided with a door safety switch (13)
to ensure that no live parts can be touched.
DANGER!
Potentially fatal high voltage
If the door safety switch (13) is bypassed, parts of
the system can become live with potentially fatal
high voltage. Even if the door safety switch is
unlocked or the master switch (19) is switched off,
parts of the system's electrical system can still
carry mains voltage.
– Bypassing the door safety switch is prohibited!
– Disconnect the system from the mains/power
supply to ensure that there can be no unau‐
thorised access to the system cabinet and
ensure that it cannot be reconnected (e.g. pad‐
lock on the master switch).
– Only open the system cabinet 5 minutes after
the system has been disconnected from the
mains/power supply.
4.3.3 Emergency stop switch in the operating room of the ozone generation systems
(accessory)
In line with the safety guidelines DGUV Regulation 103-015, it
must be possible to switch off ozone generation systems using an
emergency stop switch (emergency command device). Install this
emergency stop switch in an easily accessible, invulnerable posi‐
tion in the vicinity of the door of the operating room of the ozone
generation system and label it as such. The emergency stop switch
should disconnect the electrical supply equipment connected to the
system from the mains.
4.3.4 Master switch on the system
The master switch (19) switches on the system.
4.3.5 Pressure control valves
The pressure relief valve (12) at the inlet of the system protects the
system against the ingress of raw water.
The pressure relief valve (8) downstream of the throttle to adjust
the process air limits the pressure in the ozone generator. It thus
also protects the electronic components from overloading.
4.3.6 Ozone gas warning device (accessory)
In line with safety regulations currently applicable in Germany
DGUV Regulation 103-015, premises in which ozone could be
released in the event of a fault or malfunction must be monitored
by a gas detector.
Germany
Components of the system and their function
22