4.2
Dip-switch for selecting functions (DS_A – DS_B)
(*) Only one (and at least one) of these Dip Switches can be in ON position.
(**) Only one (or none) of these Dip Switches can be in ON position.
5
PRESSURE BOOSTING FUNCTION
The Ebox panel can be used for making a system to increase water pressure. As control inputs, either pressure switches on a pressure
sensor can be used. To operate, the panel requires an expansion vessel.
5.1
Expansion vessel
In pressure boosting it is necessary to use an expansion vessel of at least 19 litres per pump.
5.2
Electrical connections of pump and supply
Connect the supply line and the pumps as described in the chapter ELECTRICAL CONNECTIONS.
5.3
Connection of additional protections: high pressure, low pressure and motor thermal protection
It is possible, but not necessary, to use the alarm inputs to the Ebox so that the pumps stop in the case of pressure that is too high,
too low, or too high motor temperature. In the case of an alarm, the pumps stop, the alarm leds blink, the corresponding alarm outputs
are activated. If the display is present, the type of alarm is indicated. When the alarm conditions no longer exist, the Ebox resumes
normal operation.
ENGLISH
1.
No.
ON
STANDARD
vessels, minimum 19 litres per
pump.
1
Effective only in pressure
boosting and kiwa
Automatic exchange between
pump P1 and P2 every 24
2
hours.
Checks too frequent starts and
3
reduces them to 8 per minute
per pump.
Dry
operation
active. Pressure boosting only.
4
Indicates dry operation if the
pressure falls below 0.5bar.
Activates
KIWA
5
mode if pressure boosting is
active.
KIWA mode switch-off delay of
6
2 seconds.
7 (**)
Pump P1 not available.
8 (**)
Pump P2 not available.
2.
No.
ON status
Operation
1 (*)
boosting set.
2 (*)
Operation as filling set.
3 (*)
Operation as draining set.
4
Use of electric probes.
Pressure set point scale:
5
7-16 bar / 2-5 m.
6
Not used
Regulation with analog sensor
7 (**)
with current output.
Regulation with analog sensor
8 (**)
with voltage output.
72
OFF
expansion
MAXI
expansion
vessels, over 100
litres per pump.
Effective only in
pressure boosting
and kiwa
Automatic
exchange between
pump P1 and P2 at
each start.
Allows all the starts
requested by the
system.
protection
Dry
protection
active.
operating
Does not activate
KIWA mode.
KIWA
switch-off delay of
4 seconds.
Pump P1 available.
Pump P2 available.
OFF status
as
pressure
OFF
OFF
OFF
Use of floats.
Pressure set point
scale:
1-10 bar / 0-3 m.
Not used
OFF
OFF
operation
not
mode