N
Ozone output in %
p
Pressure in bar
over
ΔW
Working range
8.
Check the operating pressure: the nominal pressure for effi‐
cient ozone generation lies between 0.5 and 2 bar
9.
Before starting up ozone generation, ensure that the ozone
warning equipment is responsive, switched on and correctly
connected. Also test the locking mechanism between the
ozone warning device and the OZVb.
10. Check that the alarm equipment connected to the OZVb
alarm relay is working correctly.
11. Check that all external devices and installations, such as
ozone monitoring equipment, residual ozone destruction
units and degassing valves, are correctly installed on the
system and enabled.
9.1 Adjusting the gas priming pressure
With OZVb 1-4 A systems, the pneumatic system is pre-set to a
nominal process gas flow rate based on a priming pressure of 5
bar. However, the system can also be operated with other initial
and ozone outlet pressures. The priming pressure can be set on
the pressure regulating valve (27). The gas flow rate must be
adjusted with a higher system pressure.
9.2 Adjusting the process gas flow
WARNING!
Hazardous residual voltage
The following adjustments need to be made by a
ProMinent-trained expert when the system is run‐
ning with the cabinet door open.
– Wait at least 5 minutes after the supply of
power to the plant has been interrupted by the
mains switch before touching the components
on the inside of the cabinet.
– Do not touch any electrical components while
the system is carrying current.
– Before making the following adjustments,
ensure that the high voltage section is deacti‐
vated.
This is the case if the system is working in
‘Start without ozone generation’ operating
mode with an ozone setting of 0%.
1.
The process gas flow rate can be adjusted using the adjust‐
able process gas throttle valve (4) inside the cabinet.
ð
The
‘gas flow rate’ is shown on the touch panel.
2.
Check that the adjustable process gas throttle valve (4) is
firmly fixed in place using the appropriate locking nut.
Commissioning
41