The fan can operate both in smoke extraction mode at a temperature of 400 °C for 2 hours and in general ventilation mode. The use of an EC motor reduces power consumption during prolonged fan operation. This is achieved through the high efficiency of the motor, electrical switching, and the ability to smoothly and accurately regulate the rotation speed without using external frequency converters.
In continuous operation mode, the fan is designed to move air at temperatures up to 120 °C. Thanks to its combination of high thermal resistance, convenient and quick access for maintenance, low noise, and high energy efficiency, the fan can be used in ventilation systems in professional cooking areas, restaurants, and cafes, as well as in ventilation systems for shopping centers, office buildings, parking lots, garages, warehouses, and industrial premises.
The VSD EC fan is controlled with an external 0–10 V control signal.
Maximum speed of the fan does not depend on the power mains frequency, providing proper and stable operation in both 50 and 60 Hz power mains.
The fan is equipped with a single-phase (up to 1.5 kW) or three-phase EC motor designed for 230/400 V voltage and frequency of 50 and 60 Hz.
The electric motor is installed outside the air flow.
The motor's ingress protection rating according to IEC 60034-5 is IP55.
The fan is installed with a square or round air duct.
The connection to the air ducts is carried out by means of a flexible joint or an adapter joint of the appropriate cross-section.
The fan is powered through the external terminal box.
The fan can be installed in any position according to the direction of air flow, provided that access for maintenance is ensured.
The fan casing features heat and sound insulating two-layer panels, made of galvanized steel to protect it from environmental exposure.
The panels are insulated with 20 mm thick non-flammable mineral wool.
The impeller with backward-curved blades is powder coated.
The connecting spigots, which also serve as anti-vibration dampers, can be of square or round cross-section.
The round connecting spigots are equipped with rubber seals.
The connecting spigots are not included in the delivery set and must be ordered separately.
The direction of air flow and air mixtures is controlled by rearranging the panels on the fan frame.
