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ANY TAMPERING WITH THE INTERNAL CONNECTIONS IS PROHIBITED
AND WILL VOID THE WARRANTY.
DISCONNECT THE POWER SUPPLY PRIOR TO ANY OPERATIONS WITH THE UNIT.
CONNECTION OF THE UNIT TO POWER MAINS IS ALLOWED BY A QUALIFIED
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 PARAMETERS OF THE UNIT ARE GIVEN ON THE
MANUFACTURER’S LABEL.
CONNECTION TO POWER MAINS
• The fan unit can only be used integrated in a ventilation system with automatic control.
• The unit is designed for connection to single-phase power mains with the parameters specified in the “Technical data” section.
• 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 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). 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.
• Route the power and control cables for each motor through the cable glands on a convenient side of the casing. Route the cables
inside the casing to the terminal boxes and secure them with cable ties.
• Connect the motor of each fan through the terminal block according to the electrical mains wiring diagram using a durable insulated
cable. Terminal blocks for connecting the power cable and control cable with terminal markings are located inside the terminal box
on the casing of each motor.
