It is important when installing rotors to consider service, maintenance and cleaning. Hatches are necessary on the inspection side to allow access to control equipment, motors, drive belts and brushsealings.
Rotor performance calculations are based on undisturbed airflows in and out. Because very uneven airflow speed profiles have a negative effect on rotor performance, component location should be carefully planned in a ventilation installation.
If the rotor is e.g. installed in direct connection to a right-angle duct, guides should be installed in the duct so that air speed is evened out as far as possible. When installing a radial fan on the pressure side of the rotor, and air diffuser should be fitted.
Distance to components
Generally speaking, air handling components should not be placed too close to the rotor in order to prevent in- and outflow disturbances to the rotor.
Air containing particulates
Experience shows that the rotor can be run with a moderate amount of particulates in the air. Due to the laminar airflow inside the rotormatrix a self-cleaning effect is achieved when the rotor switches airflow directions between outside and exhaust air. If particulates does remain on the outer surface of the rotor these can be vacuum cleaned or washed away. It is always recommended to install an air filter in the direction of airflow upstream of the rotor in order to protect the rotor from contamination. It is advisable to install an exhaust air oil filter in installations with kitchen exhaust air.