VLT ® 2900 Series Mechanical installation All VLT 2900 units can be installed side-by-side and in any position, as the units do not require ventilation on the side. Side-by-side Please pay attention to the requirements that apply to installation. The frequency converter is cooled by means of air cir- culation. For the unit to be able to release its cooling air, the minimum free distance above and below the unit must be minimum 100 mm . To protect the unit from overheating, it must be ensured that the ambient temperature does not rise above the max. temperature stated for the frequency converter and that the 24-hour average temperature is not exceeded. The max.
tem- perature and 24-hour average can be seen in General technical data . If the ambient temperature is in the range of 45 °C - 55 °C, derating of the frequency con- verter is to be carried out. See Derating for ambient temperature . Please note that the service life of the frequency converter will be reduced if no allowance is made for the derating for ambient temperature. All units with enclosure IP 20 must be integrated in cabinets and panels. IP 20 is not suitable for remote mounting. In some countries, e.g. in the USA, units with enclosure NEMA 1 are approved for remote mounting.
Integration Spacing for mechanical installation All units require a minimum of 100 mm air between other components and vents of the enclosure. Installation MG.29.A3.02 - VLT ® is a registered Danfoss trademark 59