Danfoss VLT Refrigeration Drive FC 103 Operating Instructions Manual page 12

Mechanical Installation
3 3
Illustration 3.2 Top and Bottom Cooling Clearance
Enclosure
a [mm]
Table 3.1 Minimum Airflow Clearance Requirements
Lifting
•
To determine a safe lifting method, check the
weight of the unit, see chapter 8.9 Power Ratings,
Weight and Dimensions.
•
Ensure that the lifting device is suitable for the
task.
•
If necessary, plan for a hoist, crane, or forklift with
the appropriate rating to move the unit.
•
For lifting, use hoist rings on the unit, when
provided.
Mounting
1. Ensure that the strength of the mounting location
supports the unit weight. The frequency
converter allows side-by-side installation.
2. Locate the unit as near to the motor as possible.
Keep the motor cables as short as possible.
3. Mount the unit vertically to a solid flat surface or
to the optional back plate to provide cooling
airflow.
4. Use the slotted mounting holes on the unit for
wall mounting, when provided.
10
Operating Instructions
a
a
A2-A5 B1-B4 C1, C3
100 200 200
Danfoss A/S © Rev. 2014-02-06 All rights reserved.
Mounting with back plate and railings
Illustration 3.3 Proper Mounting with Back Plate
NOTICE
Back plate is required when mounted on railings.
NOTICE
All A, B, and C enclosures allow side-by-side installation.
Exception: if an IP21 kit is used, there has to be a
clearance between the enclosures:
C2, C4
•
For enclosures A2, A3, A4, B3, B4 and C3, the
225
minimum clearance is 50 mm.
•
For enclosure C4, the minimum clearance is 75
mm.
B
C
Illustration 3.4 Top and Bottom Mounting Holes (See
chapter 8.9 Power Ratings, Weight and Dimensions)
b
e
c
A
d
e
b
MG16E302
f
a
a