Installation site
Only install the fan in locations suitable in terms of load-bearing capacity, condition, ventilation, protection against temperature and fire → planning documents.
When selecting the installation site, note the following conditions
- The installation site must be level and suited to the absorption of static and dynamic load as well as the fan's inherent frequency in order to avoid distorting and damaging it. Reverberations caused by the fan’s inherent frequency must be avoided. Follow the planning documents. If necessary, modify the fan installation. For high-speed fans, plan the installation on a reinforced concrete base.
- Note that the roof’s permissible load-bearing capacity must be a min. of 200 kg/m² or for heavy units a min. of 300 kg/m².
- If installing on steel beams, it is absolutely essential that these structures have a natural frequency > 50% of the fan speed. To prevent vibrations from spreading via the foundation, we recommend using vibration-damping support plates. These are to be mounted at the points intended for them. The housing and internal structure must not be distorted.
- Note the permissible distances from building components (for air ducts on the inlet and outlet side):
1.5x impeller diameter as distance from wall for applications without air ducts.
2.5x impeller diameter as distance for first curve of the fan outlet.
Internal minimum curvature radius of curves should equal the duct diameter.
- The fan must not blow out air into areas where there are people or animals so that neither injury nor damage to persons can result from either hot, expelled air or dirt and other small particles flying around.
- Ensure appropriate ventilation for the motor, for example if adequate temperature equalisation for a heated motor cannot be achieved during lengthy idle periods. This applies to usage with a frequency converter too.
Install suitable cooling fixtures if the ventilation is not adequate. Failure to fit cooling or inadequately sized cooling may result in destruction of the fan.
- Take account of the minimum distances for installation and maintenance work. Ensure that there is enough space for installation, cleaning and maintenance work. Limited available space may present a source of danger.
- Observe the distances to other façade components to avoid sound bridges to the building structure. If necessary, use decoupling elements.
- The fan may get very hot during operation. High-temperature fans, in particular, present a fire risk for surrounding building parts and materials stored in the vicinity. Note the fire prevention requirements. If necessary, ensure that an area of a sufficient size is cordoned off around the fan to prevent unauthorised access.