installation vacon • 1933.1.2 CoolingEnough free space shall be left above and below the frequency converter to ensuresufficient air circulation and cooling. You will find the required dimensions for freespace in the table below.If several units are mounted above each other the required free space equals C + D(see figure below). Moreover, the outlet air used for cooling by the lower unit mustbe directed away from the air intake of the upper unit.The amount of cooling air required is indicated below. Also make sure that the tem-perature of the cooling air does not exceed the maximum ambient temperature ofthe converter.*. Min clearance A and B for drives forMI1 ~ MI3 can be 0 mm if the ambienttemperature is below 40 degrees.Figure 3.12: Installation spaceA = clearance around the freq. converter (see also B)B = distance from one frequency converter to another or distance to cabinet wallC = free space above the frequency converterD = free space underneath the frequency converterNOTE! See the mounting dimensions on the back of the drive.Leave free space for cooling above (100 mm), below (50 mm), and on the sides (20 mm)of Vacon 20! (For MI1 - MI3, side-to-side installation allowed only if the ambient tem-perature is below 40 °C; For MI4-MI5, side-to-side installation is not allowed.Min clearance (mm)Type A* B* C DMI1 20 20 100 50MI2 20 20 100 50MI3 20 20 100 50MI4 20 20 100 100MI5 20 20 120 100Table 3.4: Min. clearances around AC driveType Cooling air required (m³/h)MI1 10MI2 10MI3 30MI4 45MI5 75Table 3.5: Required cooling airBCBADAPhone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
