Connection To Power Mains - Vents VKM User Manual

CONNECTION TO POWER MAINS

OPERATIONS WITH THE UNIT.
QUALIFIED ELECTRICIAN WITH A WORK PERMIT FOR THE ELECTRIC
UNITS UP TO 1000 V AFTER CAREFUL READING OF THE PRESENT
USER'S MANUAL.
ON THE MANUFACTURER'S LABEL. ANY TAMPERING WITH THE
INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID THE
WARRANTY.
The fan is designed for 230 V/50 Hz single-phase alternating current mains.
The fan shall be connected to power supply by means of insulated, durable and thermal-resistant cords
(cables, wires) through the external circuit breaker with a thermal-magnetic trip built into the stationary wiring
to disconnect all the power mains phases. The rated current must be not below the rated current consumption
(refer to Technical data). The QF external switch location must ensure free access for quick shutdown of the fan.
The recommended rated current of the circuit breaker:
2 A for the VKMS 315, VKM 355Q, VCS 315 fans
3.15 A for the VKM 400, VKM 450 fans
1 A for all other fans
The recommended wire cross section is 0.75 mm
The actual conductor cross-section selection must be based on its type, the maximum permissible heating,
insulation, length and installation method (in the air, pipes or inside walls).
Connect the cables to the terminal block incorporated inside the terminal box located on the fan casing in
compliance with the fan wiring diagram and the terminal designation.
The terminal designations are shown on the sticker inside the fan casing.
The wiring diagram for the VKM 400, VKM 450 fans is shown in Fig. 10. The wiring diagram for the other fans
is shown in Fig. 11.
The fans with a speed controller and temperature and speed controller (VKM Un, VKMz Un, VKM P, VKMz P)
are designed for connection to single-phase AC power mains 230 V/50 Hz and are equipped with a power cord
and a plug (supplied connected to the terminal block).
~230 V
50 Hz
14
V05EN-07.indd 14
DISCONNECT THE UNIT FROM POWER SUPPLY PRIOR TO ANY
CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A
THE RATED ELECTRICAL PARAMETERS OF THE UNIT ARE GIVEN
Fig. 10
.
2
~230 V
50 Hz
Fig. 11
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28.04.2016 16:22:24