Installation vacon • 6124-hour support +358 (0)201 212 575 • Email: vacon@vacon.com55.2.4 Steering air flowCooling air must be taken in through the ventilation gaps on the door and blown out at the top of theenclosure. To steer the hot air from the power unit to the outlet at the top of the enclosure andprevent it from circulating back to the fan blower, use either of the following arrangements:Figure 40. Cabinet cooling airflow guidesNOTE! If a flat roof is used, mount a V-shaped air guide on the underside of the roof to direct the airflow horizontally. See Figure 41.Figure 41. Roof structure seen from the sideA. Install a closed air duct from the power unit to the outlet on top of the enclosure(A in Figure 40).B. Install shields in the gaps between the power unit and the cabinet walls (B in Figure 40).Place the shields above the air outlet gaps at the sides of the module.ShieldsSheet metalTouchMesh type touchAir ductprotectionprotections11216.emf
