Wall fan EZF 20/4 E

high-performancereversibleIP54

EZF 20/4 E - short description Axial wall fan for recessed-mounted installation, DN 200, single-phase AC •For recess mounting. •Can be fitted in any position. •Wall sleeve made of galvanised sheet steel. •8-blade impellers made of glass-fibre filled polyamide. Dynamically balanced at two levels, in •accordance with performance level 6.3, DIN ISO 1940, Part 1. •Protective grille made of plastic on the intake side, pearl white, protection against accidental •contact in accordance with DIN EN 13857. Air flow direction The following illustration shows the air flow direction. Air flow direction A: With air drawn across the motor, standard Air flow direction B: With air blown across the motor, available on request Rotational direction Reversing mode: The volumetric flow is reduced by approx. 35 % with abnormal air flow direction. Motor Asynchronous motor. Reversible. Exception: Fans with shaded-pole motors (...-E). Not suitable for ventilating steam-saturated air. AC motor EZF model series. Rated voltage 230 V, 50 Hz. Thermal overload protection as a standard feature. "../B" fans: Capacitor motors with operating capacitor fitted to protective grille or to wall sleeve. IP 55 degree of protection. "../D" fans: Capacitor motors with operating capacitor in terminal box. IP 54 degree of protection. "../E" fans: Shaded-pole motors, non reversible. IP 54 degree of protection. Electrical connection To terminal block under the motor cover. Safety instructions The fan can be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordance with DIN EN ISO 13857 for fans with a free inlet.