Installation; Installation Site Check List; Pre-Installation Check List; Mechanical Installation - Danfoss VLT FC 103 Operating Instructions Manual

Installation

2 Installation

2.1 Installation Site Check List

2 2
• •
The frequency converter relies on the ambient air
for cooling. Observe the limitations on ambient
air temperature for optimal operation
•
Ensure that the installation location has sufficient
support strength to mount the frequency
converter
•
Keep the frequency converter interior free from
dust and dirt. Ensure that the components stay as
clean as possible. In construction areas, provide a
protective covering. Optional IP55 (TYPE 12) or
IP66 (NEMA 4) enclosures may be necessary.
•
Keep the manual, drawings, and diagrams
accessible for detailed installation and operation
instructions. It is important that the manual is
available for equipment operators.
•
Locate equipment as near to the motor as
possible. Keep motor cables as short as possible.
Check the motor characteristics for actual
tolerances. Do not exceed
•
•

2.2 Pre-installation Check List

•
Compare the model number of unit on the
nameplate to what was ordered to verify the
proper equipment
•
Ensure each of the following are rated for same
voltage:
•
Ensure that the frequency converter output
current rating is equal to or greater than motor
full load current for peak motor performance
8
inverter.ru (812) 702-47-50
VLT Refrigeration Drive FC 103 1.1-90 kW Operating Instructions
300 m (1000 ft) for unshielded motor
leads
150 m (500 ft) for shielded cable.
Mains (power)
Frequency converter
Motor
Motor size and frequency converter
power must match for proper overload
protection
If frequency converter rating is less than
motor, full motor output cannot be
achieved
MG16E202 - VLT® is a registered Danfoss trademark

2.3 Mechanical Installation

2.3.1 Cooling

•
To provide cooling airflow, mount the unit to a
solid flat surface or to the optional back plate
(see 2.3.3 Mounting)
•
Top and bottom clearance for air cooling must be
provided. Generally, 100-225 mm (4-10 in) is
required. See Illustration 2.1 for clearance
requirements
•
Improper mounting can result in over heating
and reduced performance
•
Derating for temperatures starting between 40 C
(104 F) and 50 C (122 F) and elevation 1000 m
(3300 ft) above sea level must be considered. See
the equipment Design Guide for detailed
information.
Illustration 2.1 Top and Bottom Cooling Clearance
Enclosure A2-A5
a/b [mm] 100
Table 2.1 Minimum Airflow Clearance Requirements
a
b
B1-B4 C1, C3 C2, C4
200 200 225