9
15.710057-V3.0
U 189-010 en
6
Fault Correction
The numbers in brackets occurring in the following refer to the
items of the enclosed sectional drawings 15.189-200 and
12.4188-300.
FAULT
No changing over
The change - over device
switches to the stand - by bat-
tery despite filled cylinder or
drum and opened connecting
valve.
CAUSE
●
The gas dosing system is
leaky, so that the vacuum
required for the change - over
function cannot be gener-
ated.
●
The change - over device is
coupled with a chlorine gas
dosing unit V 107 or V 115,
without having provided a
compensation for the main
regulator.
●
The diaphragm (2) or o - ring
(3) in the change - over de-
vice are leaky.
●
The vacuum regulator lets
through only an insufficient
amount of chlorine or the
vacuum line is too long (this
fault occurs mainly with a
high flow rate). It can also be
the case that a chlorine cyl-
inder is frozen up.
●
Using the change - over de-
vice in connection with the
vacuum regulator C 105-230
(all vacuum system) the flow
rate of each regulator can
exceed 600 g/ h or 30 PPD.
DISCERNIBLE FROM
☞
The rotameter indicates a
flow, although the supply bat-
tery (cylinder, drum) is empty
or closed.
☞
The vacuum of 2 - 3 m WS /
52" - 78" WC required for the
change - over function is not
attained (measure the vacu-
um between change - over
device and regulator with a
vacuum meter).
☞
The rotameter indicates a
flow, although the supply bat-
tery (cylinder, drum) is empty
or closed.
☞
Measure the vacuum after
the outlet of the change -
over device with a vacuum
meter. The vacuum must
amount to less than 2 m WS /
52" WC.
☞
Measure the vacuum after
the outlet of the change -
over device with a vacuum
meter. The vacuum has to
be less than 2 m WS / 52" WC.
Adjust a smaller flow rate, so
that the value of the operat-
ing vacuum falls below that
of the vacuum required for
the change - over function.
CORRECTION
☞
Check the dosing system for
leaks. For this purpose dis-
connect the vacuum lines
between the rotameter and
the vacuum regulators one
after the other, close them
with the finger and observe
the rotameter. See
sections
5.1 and 5.2 Leak test.
☞
Arrange a compensation for
the main regulator.
☞
Replace the defective parts.
☞
Clean the vacuum regulator
and restart it or lay a vacuum
line with a larger cross sec-
tion.
☞
Add a further vacuum regu-
lator with chlorine cylinder to
the supply battery, if the
maximum flow rate is re-
quired.
7
Spare Parts Set
There is a
spare parts set,
order no. 553-1024
available for
the vacuum change - over device U 189-010. It comprises the
o - rings (1 / 3 / 4 / 5 / 7 / 8 / 9), the diaphragm (2) as well as the
pressure spring (6). If other than the indicated parts are defec-
tive, return the change - over device to the works for repair or
replacement.
