5.0 INSTALLATION AND FIXING
VL
2
VAL.130.--.M.EN Issue: A1
09.16
34
5.7 Electrical connection
Danger - Warning
The valve is not provided with an electrical system. Connection to the mains must be carried out by
an electrician.
Provide a connection line for powering the valve in accordance with the provisions of the laws on the
matter and taking into consideration the environmental safety requisites for installation and the envis-
aged operating conditions.
None of the basic utilities require electrical connection.
The installer must interface the valve with the necessary start/stop controls, emergency stops, reset after
emergency stop, and micro-switches for inspection hatches, in compliance with existing regulations.
Before making the connection, ensure that the mains voltage and frequency correspond to those indicated on
the electric component rating plate. Disconnect the power supply before carrying out any work and use suit-
able devices so that it cannot be accidentally reconnected.
Use electric cables having suitable cross-section for the power absorption of the motor of the valve.
The type of motor connection depends on the voltage value available to be applied; refer to the wiring diagram
provided for each motor.
The illustration shows the wiring diagrams if the motor is supplied by WAM
®
. Refer to the manual on the web-
site www.wamgroup.com
UN43-0014CG
W2 V2U2
U1 V1 W1
U1 V1 W1
W2 V2U2
U1 V1 W1
W2V2U2
U1 V1 W1
W2V2U2
RST
RST
RST
RST
MOTORS WITH SINGLE POLARITY
MOTORS WITH DOUBLE POLARITY
Delta connection
Dahlander single winding - single voltage
Lower voltage
Lower speed
Star connection
Higher voltage
Higher speed
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