3.2.4 Mechanical Mounting
All IP20 enclosure sizes as well as IP21/ IP55 enclosure sizes
except A2 and A3 allow side-by-side installation.
If the IP 21 Enclosure kit (130B1122 or 130B1123) is used on
enclosure A2 or A3, there must be a clearance between the
drives of min. 50 mm.
For optimal cooling conditions allow a free air passage above
and below the frequency converter. See table below.
Air passage for different enclosures
Enclo
sure:
A2 A3 A4 A5 B1 B2 B3 B4 C1 C2 C3 C4
a
(mm):
100 100 100 100 200 200 200 200 200 225 200 225
b
(mm):
100 100 100 100 200 200 200 200 200 225 200 225
1. Drill holes in accordance with the measurements
given.
2. You must provide screws suitable for the surface on
which you want to mount the frequency converter.
Re-tighten all four screws.
Mounting frame sizes A4, A5, B1, B2, B3, B4, C1, C2, C3 and C4
on a non-solid back wall, the frequency converter must be
provided with a
backplate A due to insufficient cooling air over the heat sink.
With heavier drives (B4, C3, C4) use a lift. First wall-mount the
2 lower bolts - then lift the drive onto the lower bolts - finally
fasten the drive against the wall with the 2 top bolts.
Mechanical Installation
VLT
®
HVAC Drive Operating Instructions
18 MG.11.AD.02 - VLT
®
is a registered Danfoss trademark
3
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