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9.5.3 Configuring safety functions
Automatic pump deactivation
To prevent water being pumped continuously due
to a damaged pipe, a maximum continuous running
time can be entered for the pump. When the set
running time is reached, the pump is switched off
and a fault signal is triggered (see section 12.1).
This function is switched off in the factory settings.
• Set the maximum permitted continuous running
time for the pump in menu 2.21.
Back pressure and overflow sensor
A tank back pressure detector independently fit-
ted by the customer can be connected to the
switchgear (Fig. 9, input 4 (+ -)). The back pres-
sure detector sends a signal when water (waste-
water) is entering the collector tank through the
overflow.
A retrofitting set can be used to connect a sensor
to the control device (Fig. 9, input 4 (+ -)) to indi-
cate overflow on the collector tank.
Using an external connection unit, both a back
pressure sensor and an overflow sensor can be
connected to the switchgear (Fig. 9, input 4 (+ -)).
A back pressure sensor is configured in the factory
settings.
• Select the input wiring configuration in menu 2.24.
• Set how the sensor operates, as normally open
contact or normally closed contact, in menu 2.17.
9.5.4 Putting the unit into operation (commissioning)
To commission the unit, it must be put into auto-
matic operating mode.
• Go back to the main menu via menu 2.99.
• Exit the parameter input mode by entering the
password 00.
• Set the operating mode to automatic in menu
1.01.
The unit is now ready for operation.
• Go back to the main menu via menu 1.99.
30
10 Operation of the unit
10.1 Default display
When the unit is in operation, the switchgear
shows the following status information on its dis-
play screen:
P: Current system pressure on the pressure side
(discharge side)
H: Filling height or V: filling volume of the collector
tank (depending on the tank form selected)
Automatic: Automatic operating mode, or OFF:
operating status switched off, or Manual: manual
operating mode, or Potable water: potable water
operating mode
RW: Rainwater from collector tank
DW: Potable water from potable water replenish-
ment reservoir
FS: Fault-tolerant software active
FP: Furring protection (prevention of lime depos-
its) active
FT: Flush time active
When the product is delivered, the display of the
water level (filling height) is set to "cm" as the unit
of measurement for the "standard" tank form. If a
different tank form is selected, the water level will
be displayed as a percentage of volume. All neces-
sary data is set in the menus 2.04 – 2.07 (see sec-
tion 9.5.2).
10.2 Resetting switchgear settings
NOTE: The switchgear can be reset to the factory
settings if an incorrect configuration is entered.
• In menu 5.01, press the confirmation button
and use the "go back"
buttons to set the confirmation query to yes.
• Press the confirmation button
The switchgear is now reset to its factory settings
(see section 9.3).
11 Maintenance
• An annual check of the unit by Wilo after-sales
service is recommended.
• At least 1x per year, check that the float valve is
firmly in place and not leaking, and that the unit is
not leaking and all components are firmly in place.
• If the unit is to be out of use for a long period,
switch off the potable water supply, pull out the
mains plug and empty the pump/unit by opening
the pump's lower drainage screw.
and "go forward"
again.
WILO SE 01/2009
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