5.5
Operation with pressure sensor (recommended choice)
It is recommended to use this operating mode, rather than pressure switches, because it allows greater flexibility in managing the system, the
pressure distributed by the set can be seen, and installation is easier. In this case it will be possible to set the Set Point pressure and the pressure
differential for the restarting and stopping of the pumps.
5.6
Connection of the pressure sensor
The pressure sensor must be connected to the terminal board, see Figure 10 Pressure sensor connection, according to the following diagram:
ATTENTION: incorrect wiring of the sensor can damage the appliance and the sensor.
NOTE: the choice of sensor limits the maximum set-point that can be reached.
5.7
Operation with pressure switches
If you decide to operate the booster set with pressure switches, they must be connected on the delivery of the booster set. The pressure switches
to be used are B and C and they are connected as indicated in the next chapter.
Connection of pressure switches
The pressure switches must be connected to the contacts B and C of the terminal board shown in Figure 11.
5.8
Setting with the display, wizard
The E.box D can be configured with a simple wizard. The device asks the user for all the parameters necessary for its configuration. If necessary,
it can be loaded by pressing the "set" + "+" keys when switching on. To navigate in the wizard, use the following keys:
"mode" to accept the parameter displayed and move on to the next
•
"mode" held down for more than 1 second to return to choose the parameter
•
"-" and "+" to vary the value of the parameter.
•
ENGLISH
Figure 11: Terminals for connecting the pressure switches
Pressure sensor connections
4..20mA
Terminal
Cable to be connected
11
- OUT/GND
12
+VCC
Figure 10: Pressure sensor connection 4..20mA
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