Kiwa Pressure Boosting Function; Expansion Vessel; Electrical Connections Of Pump And Supply; Connection Of Additional Protections: High Pressure And Motor Thermal Protection - DAB E.Box Plus Instrucciones De Instalación Y Mantenimiento

8 KIWA PRESSURE BOOSTING FUNCTION

The E.box panel can be used for making a system to increase water pressure that respects the KIWA standard. This
mode is available only if the language chosen is French, Dutch or English. As control inputs, either pressure switches
on a pressure sensor can be used. A pressure switch for low pressure must be used to put at the intake of the set.

8.1 Expansion vessel

In KIWA pressure boosting it is necessary to use an expansion vessel of at least 19 litres per pump.

8.2 Electrical connections of pump and supply

Connect the supply line and the pumps as described in chapter 2.1.

8.3 Connection of additional protections: high pressure and motor thermal protection

It is possible, but not necessary, to use the alarm inputs to the E.box so that the pumps stop in the case of pressure
that is too high 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 E.box resumes normal operation.

Alarm, Pressure in system too high: the pressure switch must be installed in the delivery of the set. The
normally closed contact of the pressure switch must be connected to terminal R of the E.box. The pressure
switch must be set at the maximum pressure that can be reached by the system in safe conditions. If it is not
used, the contact is jumpered.

Motor thermal protection: the device has an input for the thermal protection of each motor. If the motor used
is provided with thermal protection, this protection can be connected to the terminals KK. If the protection is
not present in the motor, the terminals must be jumpered. The terminals are shown in Figure 45.
If the alarms are not used, they must be jumpered. So jumpers must be fitted on the inputs of the contacts
R, KK1 and KK2.
ENGLISH

Figure 44: Inputs

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