InstallationOperating_Manual_Fan_KXE_04_en.docx 35 / 128Level the fan at the installation site.Inlet and discharge must be flush with the duct work.Differences in height can be compensated easily usingshims.DANGERWeight of fan!Fatalities or extremely serious injuries resulting from fallingor tipping.→ Mount the fan horizontally.→ Use shims as required.→ If a risk of tipping is evident: Stabilise the fan andsecure the fan with the substructure.→ Ensure that the installation site is suitable to supportthe weight of the fan.→ Never allow the fan to become deformed, warped ortwisted by mechanical means.NOTICE!For mounting in chemically-aggressive atmospheres,and when mounting in the open air, the shims usedmust be of stainless steel. Shims and other materialrequired for installation can be obtained from themanufacturer.7.2 Mounting and alignment