Connection To Power Mains - Vents VKM Series User Manual

CONNECTION TO POWER MAINS

DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
ELECTRICIAN WITH A WORK PERMIT FOR THE ELECTRIC UNITS UP TO 1000 V AFTER
CAREFUL READING OF THE PRESENT USER'S MANUAL. THE RATED ELECTRICAL
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED AND WILL VOID
The fan is designed for 120 V / 60 Hz (for the VKM 100...305 fans ) or 230 V / 60 Hz (for the VKM 355Q, VKM 400, VKM 450 fans )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 the «Technical data» section). 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 VKM 355 Q fans
• 3.15 A for the VKM 400, VKM 450 fans
• 1 A for all other fans
The recommended wire cross section is minimum AWG 19.
The actual conductor cross-section selection must be based on its type, 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:
~ 230 V
60 Hz
For the VKM 400, VKM 450 fans
The TW1, TW2 terminals are the electrical leads of the normally closed contact of the motor overheating protection.
The QF circuit breaker is not included in the delivery and must be installed by the user.
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CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED
PARAMETERS OF THE UNIT ARE GIVEN ON THE MANUFACTURER'S LABEL.
ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
~ 230 V
60 Hz
THE WARRANTY.
For the VKM 355 Q
~ 120 V
60 Hz
For the other fans
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