Vents VK VMS, User Manual

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9 www.ventilation-system.com
CONNECTION TO POWER MAINS
POWER OFF THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
THE UNIT MUST BE CONNECTED TO POWER SUPPLY BY A QUALIFIED ELECTRICIAN.
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
X
N
L
N
L
QF
QF
N
L
N
L
X
S
WIRING DIAGRAM
• The unit is rated for connection to power mains with the parameters specified in the "Technical data” 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 circuit breaker must ensure free access for quick unit power-off. 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). It is recommended to select the nominal current of the circuit breaker from the standard series, following
the maximum current of the connected unit. The circuit breaker is not included in the delivery set and can be ordered separately.
Diagram 1.
Connection of the fan to power mains
Diagram 2.
Connection of the fan to power mains with an
external switch