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Wilo Tagus Vac 7 Instrucciones De Instalación Y Funcionamiento página 53

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limits and are not adjustable by the operator.
• pON and pOFF are adjustable within these limits.
Monitoring of quantity of water to be
11.3.3
treated
If a water treatment module has been
installed and the pulse water meter has been
set to ON, the residual water quantity can be
read at the lower right in the process menu.
I.e.: if the residual water quantity has been
correctly entered in the parameter menu
'Water treatment prior to commissioning'.
If the quantity is zero litres, the centralised
fault alarm will be tripped (if activated),
and an error message will be initiated.
Negative values mean that the permissible
treated quantity (capacity) in litres has been
exceeded. The Tagus Vac 7-30 continues to
operate in such a case.
12. Menu descriptions
12.1 Hardware menu
TID number
Can be parameterised only by the
manufacturer and service personnel.
Language
The operator can choose between 17
languages. German (G2_1) is the default
setting on delivery.
Litres counter (IWZ)
Set this item to ON only if a pulse water
meter (litres counter) is used. The pulse
water meter can be used for directly
controlling and monitoring the supplied
make-up water. The default setting is OFF.
Water treatment
If a water treatment module has been
integrated in the make-up water branch and
the litres counter has been set to ON, the
residual water quantity that can be read in
litres in the process menu. When a quantity
of zero litres is reached, the centralised fault
alarm is tripped, and an error message will
be displayed. Negative values mean that the
allowable treatment quantity (capacity) has
been exceeded. The make-up unit continues
to operate even if the centralised fault alarm
Installation and operating instructions Tagus Vac 7-30
has been tripped. The operator must activate
the water treatment function.
Control mode (Make-up mode)
The operator can operate the system in
a level-controlled (controlled from an
external pressureholding control) mode
or in a pressure-controlled mode (default
setting for normal gas-cushioned diaphragm
expansion vessel). The operator also can
deactivate the make-up function.
Operating mode
The unit is shipped from the factory with
the fast mode activated. Upon expiry of
the fast interval, the unit automatically
switches to normal. However, the operator
can change the operating mode at any
time. The hand mode can be activated for
servicing purposes only. Vacuum test serves
for ensuring the de-aerating operation and
for checking leakages in the system. This
function must be used when the unit is
commissioned and each time the unit is put
back into service after maintenance. After
the test has been completed, the unit must
be switched back to the fast mode.
Sensor / Motor protection
Already been parameterised. Factory setting.
Common failure
If set to ON (item ticked), the common
failure will be tripped upon the activation of
the respective error message. The default
setting is ON. It is possible to deactivate the
following centralised fault alarms: 'Exchange
module' and 'Next maintenance'.
• Exchange module: the water treatment
capacity is exhausted. If it is set to ON, a
centralised fault alarm will be tripped. The
unit continues to operate. If set to OFF, no
centralised fault alarm will be tripped.
• Next maintenance: maintenance date
has been reached. If it is set to ON, the
centralised fault alarm will be tripped and
the unit continues to operate. If set to OFF,
no centralised fault alarm will be tripped.
12.2
Parameter menu
English
53

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