BWT Bewazon VULW 12 - Page 36

EN
36
Fault no. Monitored operating
condition
Delayed
actuation
Ozone device reaction Possible cause Remedy
(§74 / 90 / 106 / 122)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Ozone mixture,
noairowonow-
meter 26S1 / 36S1 /
46S1 / 56S1
Air purging and ozone
generation
a) After 10 se-
conds: High vol-
tage switched
o󰀨,operation
with air purging
continued.
Iftheairowis
restored before
2 minutes
pass =>
Ozone opera-
tion continues
without gene-
rating a fault
message
b) After 2 minutes:
Fault message
generated
Ozone generation/air pur-
gingswitchedo󰀨without
post-purge
a) Only during start-
up:
b) Injector failure or
not functioning
properly
c) Water supply tank
empty
d) Gas draw tube
leaks or is blocked
a) Booster pump
rotation direction
incorrect
b) Check system pres-
sures, clean injector
and check valve
c)Rellandnd
cause, if necessary
d) Check tubing
(§75 / 91 / 107 / 123)
reserved
- - - - -
(§76 / 92 / 108 / 124)
reserved
- - - - -
(§77 / 93 / 109 / 125)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: High-voltage
transformer/ozone
generator, ozone
generation blocked for
10 minutes
Ozone generation - Ozone generation swit-
chedo󰀨withpost-purge
a) Short circuit in
ozone pipes, glass
broken
b) Short circuit in high-
voltage transformer
c) Protective switch
set too low in unit
a.1) Check glass
piping in ozone
generator
a.2) Check: Water
returning from the
injector
a.3) Check dew point
of both dryers
b) Replace the high-
voltage transformer
c) Check the current
consumption and
correct the fuse cur-
rent setting on the
protective switch
(§78 / 94 / 110 / 126)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Cooling water
temperature at ther-
mostat 26S2 / 36S2 /
46S2 / 56S2 too high
Ozone generation - Ozone generation swit-
chedo󰀨withpost-purge
a) Cooling water too
warm
b)Coolingwaterow
rate too low
c) Thermostat set too
low
a) Reduce cooling
water temperature
b) Increase cooling
waterowrateand
checktheowrate
monitoring setting
c) Check thermostat
setting
(§79 / 95 / 111 / 127)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Cooling water
owrate,min.contact
owrate26S3/36S3
/ 46S3 / 56S3 fallen
below
Ozone generation 2 minutes Ozone generation swit-
chedo󰀨withpost-purge
a)Coolingwaterow
rate too low
b)Min.contactow
rate for monitoring
set too high
c) Setting for cooling
water monitoring on
the “Ozone device:
extended settings”
screen is incorrect
a) Increase the cooling
waterowrate
b) Check the min.
contactowrate
setting
c) Check and correct
the setting
(§80 / 96 / 112 / 128)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Cooling water
owrate,measured
valueatowmeter
26B1 / 36B1 / 46B1 /
56B1 too low
Ozone generation 2 minutes Ozone generation swit-
chedo󰀨withpost-purge
a)Coolingwaterow
rate too low
b) Minimum cooling
waterowrateon
“Ozone device:
settings” screen set
too high
c) Flowmeter faulty
d) Setting for cooling
water monitoring on
the “Ozone device:
extended settings”
screen is incorrect
a) Increase the cooling
waterowrate
b) Check the setting
for minimum cooling
waterowrate
c) Check the electrical
connection and that
theowmeteris
functioning correctly
d) Check and correct
the setting