Cabinet
It is made of steel sheet, coated with black lacquer, the screws are electroplated.
Running wheel
is made of glass fibre reinforced thermoplastic with Al hub. It is statically and dynamically balanced. Blade rotation is 32° or 34° as standard.
Motor
is asynchronous, black lacquer finish, stator with cooling fins, class F insulation, operating temperature -20 to +40 °C. Lifetime grease-filled ball bearings. IP55 protection.
Speed control
is performed by frequency converters
Rotation direction
can be changed for single-phase and three-phase motors. With a standard impeller, the flow rate drops by approx. 30% when the direction of rotation is reversed. With the wall-mounted version, the air flow from the motor to the impeller is standard.
Clamps
is made of black plastic. The terminal box is located on the motor (wall-mounted version).
Mounting
fan in each position of the motor axis. The housing must not transmit mechanical stresses from the building structures.
Noise
emitted by the fan is given in the tables, the measurements being made at a distance equal to three times the impeller diameter (but not less than 1,5 m) in the free acoustic field.