DAB Esybox Serie Instructions Pour L'installation Et L'entretien page 48

The appliance must be connected to a main switch that cuts off all the power supply poles. When the switch is in off position, the distance sepa-
rating each contact must respect the indications in table 2.
5.2 Configuration of the Integrated Inverter
The system is configured by the manufacturer to satisfy the majority of installation cases, that is:
– Operation at constant pressure.
– Set-Point (desired value of constant pressure): SP = 3.0 bar
– Reduction of pressure to restart:
– Anti-cycling function:
However, all these parameters and many others can be set by the user. There are many other operating modes and accessory functions. Thanks
to the different possible settings and the availability of configurable input and output channels, it is possible to adapt the inverter operation to the
requirements of various systems. See par. 7-8-9.
For the definition of the parameters SP and RP, the pressure at which the system starts has the value:
Pstart = SP – RP For example: 3.0 – 0.3 = 2.7 bar in the default configuration.
The system does not work if the utility is at a height higher than the equivalent in metres of water column of the Pstart (consider 1 bar = 10 m
water column): for the default configuration, if the utility is at a height of at least 27m the system does not start.
5.3 Priming
The priming of a pump is the phase during which the machine attempts to fill the body and the suction pipe with water. If the operation is successful
the machine can work regularly.
Once the pump has been filled (par. 4.1.2, 4.2.3) and the device has been configured (par. 5.2), it is possible to connect the electric power supply
after having opened at least one utility on delivery. The system starts and checks the presence of water in delivery for the first 10 seconds.
If a flow of water is detected in delivery, the pump is primed and starts its regular work. This is the typical case of installation below head (par.
4.1.2, 4.2.3). The utility opened in delivery from which the pumped water is coming out can be closed.
If a regular flow in delivery is not detected after 10 seconds, the system asks for confirmation to enter the priming procedure (typical case of
installation above head par. 4.1.2, 4.2.3). Or:
When "+" is pressed the pump enters the priming procedure: it starts working for a maximum time of 5 minutes during
which the safety block for dry operation is not tripped. The priming time depends on various parameters, the most
influential of which are the depth of the water level from which it is drawing, the diameter of the suction pipe, the water-
tightness of the suction pipe.
On condition that a suction pipe is used that is no smaller than 1" and that it is well sealed (with no holes or joins from which it can take in air), the
product has been studied to manage to prime in water conditions up to 8m in depth, in a time of less than 5 minutes. As soon as the product
detects a regular flow in delivery, it leaves the priming procedure and starts its regular work. The utility opened in delivery from which the pumped
water is coming out can be closed. If after 5 minutes of the procedure the product is still not primed, the interface display sends a failure message.
Disconnect the power supply, load the product adding new water, wait 10 minutes and repeat the procedure from the moment you put the plug in
the socket.
Press "-"to confirm that you do not want to start the priming procedure. The product remains in alarm status.
Operation: Once the electropump is primed, the system starts regular operation according to the configured parameters: it starts automatically
when the tap is turned on, supplies water at the set pressure (SP), keeps the pressure constant even when other taps are turned on, stops
automatically after time T2 once the switching off conditions are reached (T2 can be set by the user, factory value 10 sec).
6. PROTECTION SYSTEMS
The device is equipped with protection systems to preserve the pump, the motor, the supply line and the inverter. If one or more protections trip, the one
with the highest priority is immediately notified on the display. Depending on the type of error the motor may stop, but when normal conditions are restored
the error status may be cancelled immediately or only after a certain time, following an automatic reset.
In the case of blockage due to water lack (BL), blockage due to motor overload (OC), blockage due to direct short circuit between the motor phases (SC),
you can try to exit the error conditions manually by simultaneously pressing and releasing the + and – keys.
If the error condition remains, you must take steps to eliminate the cause of the fault.
In the event of blocking due to one of the internal errors E18, E19, E20, E21 it is necessary to wait 15 minutes with the machine powered until the blocked
status is automatically reset.
Display indication
Display indication
PH
BL
Minimum distance between the contacts of the power switch
Minimum distance [mm]
RP = 0.3 bar
Disabled
Alarm in the fault log
PD
FA Problems in the cooling system
Blockage conditions
Cutout due to pump overheating
Blockage due to water lack
ENGLISH
Description
Irregular switching off
Description
46
Table 2
>3
Table 3: Alarms