Danfoss FC 100 Series Operating Instructions Manual page 18

Mechanical Installation
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
3 3
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
A2 A3
sure:
a
100 100 100 100 200 200 200 200 200 225 200 225
(mm):
b
100 100 100 100 200 200 200 200 200 225 200 225
(mm):
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.
18
VLT
A4 A5 B1 B2 B3 B4 C1
MG.11.AD.02 - VLT
®
HVAC Drive Operating Instructions
C2 C3 C4
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.
®
is a registered Danfoss trademark