3
vacon • 22
Mounting
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
3.2
Cooling
The AC drive produces heat in operation and is cooled down by air circulated by a fan. Enough free
space must be left around the AC drive to ensure sufficient air circulation and cooling. Different acts
of maintenance may also require certain amount of free space.
The minimum clearances given in Table 7 should be respected. It is also important to ensure that
the temperature of the cooling air does not exceed the maximum environment temperature of the
AC drive.
Contact our factory for more information on required clearances in different installations.
Table 7. Min. clearances around AC drive.
A = Clearance left and right from the drive
B = Clearance above the drive
C = Clearance underneath the AC drive
Figure 13. Installation space.
NOTE
that if several units are mounted
above
each other the required free space equals B+C (see
the Figure 14.). Moreover, the outlet air used for cooling by lower unit must be directed away from
the air intake of the upper unit by means of e.g. a piece of metal plate fixed to the wall between the
drives as shown in Figure 14..
Min clearance [mm]
Type
A
B
C
MU2
15
30
60
MU3
15
30
80
Table 8. Required cooling air.
Type
Cooling air required [m
3
/h]
MU2
50
MU3
110
A
A
A
B
C
