Cabinet
is made of galvanized steel sheet. It is coated with black epoxy paint. All models are equipped with a protective net against small birds.
Running wheel
is radial with backward curved blades. It is made of galvanized steel sheet, is statically and dynamically balanced.
Motor
It is a DC, specially developed EC motor with external rotor for 230 V/50 Hz power supply. The motors are equipped with a thermal fuse as standard. Motor insulation is class F. Permanent operating temperature -20 to +40 ˚C. Ball bearings with grease packing for life. Protection rating IP44.
Clamps
With revision switch is located on the fan housing. IP55 protection.
Speed control
is carried out by means of a potentiometer located in the terminal box or by an external REB Ecowatt control. Alternatively, control is via a 0-10 V control signal from a temperature, humidity or CO2 sensor.
Mounting
Fan only horizontally (with the motor axis vertical) directly onto the circular pipe using a single-edge rubber gasketed throat.