AIRD1 1301BA1-GB03 52 Installation and Operations2.1 Installation2.1.1 Air Stream Fan AIR 1 and AIR 2Air stream fan AIR 1A: Air exhaustB: Handle to swing around the fanC: Lever to lock the fanD: Power-supply plugThe air stream fan AIR 1 is equipped with a power-supply plug (D) for 230 V mains supply. TheON/OFF switch is situated on the back side of the fan.The air stream fan AIR 2 must be connected to 400 V three-phase mains. The air stream fan isequipped with 4 rollers and can therefore easily be moved to the intended point of use. To ensurea stable position during operation, two of the rollers are equipped with a locking brake. Normally,a cable remote control is used to switch on and off the cooling fan. If, however, a MAHAdynamometer is used, the air stream fan can be operated with the dynamometer's remote control.