Connection To Power Mains - Vents VK Series User Manual

CONNECTION TO POWER MAINS

THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
• The unit is rated for connection to power mains with the parameters specified in the "Technical specifications" section, according to
the wiring diagram.
• The connection must be made using durable, insulated and heat-resistant conductors (cables, wires).
• The actual wire cross section selection must be based on the maximum load current, maximum conductor temperature depending
on the wire type, insulation, length and installation method.
• The external power input must be equipped with an automatic circuit breaker QF built into the stationary wiring to open the circuit
in the event of overload or short-circuit.
• The position of the external automatic circuit breaker must ensure free access for quick power-off of the unit.
• The trip current of the automatic circuit breaker must exceed the maximum current consumption of the unit (refer to the "Technical
data" section or to the unit label).
• The recommended trip current of the circuit breaker is the next current in the standard trip current row following the maximum
current of the connected unit.
• The circuit breaker is not included in the delivery set and can be ordered separately.
Connection of the fan
to power mains
QF
N
L
Designation:
L N QF
– line; – neutral; – automatic circuit breaker;
S X
– switch (Diagram 3); – input terminal block
WARNING! The fan is equipped with a thermal switch without self-resetting function.
To avoid a random restart of the thermal switch, the unit must not be powered through an external switching device, such as
a timer, or connected to power mains usually turned on/off by public services.
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POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
Diagram 1
X
N
L
QF
L
N
S
MANUFACTURER'S LABEL.
AND WILL VOID THE WARRANTY.
WIRING DIAGRAM
Connection of the fan to power mains with an
N
L
Diagram 3
Connection of the Duo fan
to power mains
S
L1
L2
N
– external switch (Diagrams 1, 2);
Diagram 2
external switch
QF
N
S
L
X
X
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