Wilo Tagus Vac Instrucciones De Instalación Y Funcionamiento página 25

• pMIN and pMAX are set on the working pressure
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
Installation and operating instructions Tagus Vac 7-30
to operate even if the centralised fault
alarm 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
I f 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.
English
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