2 Installation
2.1 Planning the Installation Site
NOTE!
Before performing the installation, it is important to plan
the installation of the adjustable frequency drive.
Neglecting this may result in extra work during and after
installation.
Select the best possible operation site by considering the
following (see details on the following pages and the
respective Design Guides):
•
Ambient operating temperature
•
Installation method
•
How to cool the unit
•
Position of the adjustable frequency drive.
•
Cable routing
•
Ensure the power source supplies the correct
voltage and necessary current.
•
Ensure that the motor current rating is within the
maximum current from the adjustable frequency
drive.
•
If the adjustable frequency drive is without built-
in fuses, ensure that the external fuses are rated
correctly
Voltage [V] Altitude restrictions
380–500
At altitudes above 10,000 ft [3 km], contact Danfoss
regarding PELV
525–690
At altitudes above 6,600 ft [2 km], contact Danfoss
regarding PELV
Table 2.1 Installation in High Altitudes
2.1.2 Planning the Installation Site
NOTE!
Before performing the installation, it is important to plan
the installation of the adjustable frequency drive.
Neglecting this may result in extra work during and after
installation.
Select the best possible operation site by considering the
following (see details on the following pages and the
respective Design Guides):
•
Ambient operating temperature
•
Installation method
•
How to cool the unit
•
Position of the adjustable frequency drive
•
Cable routing
•
Ensure that the power source supplies the correct
voltage and necessary current.
•
Ensure that the motor current rating is within the
maximum current from the adjustable frequency
drive.
•
If the adjustable frequency drive is without built-
in fuses, ensure that the external fuses are rated
correctly.
Voltage [V] Altitude restrictions
380–480
At altitudes above 10,000 ft [3 km], contact Danfoss
regarding PELV
525–690
At altitudes above 6,600 ft [2 km], contact Danfoss
regarding PELV
Table 2.2 Installation in High Altitudes
Installation
VLT
®
Refrigeration Drive Instruction Manual
MG16J122 - VLT
®
is a registered Danfoss trademark
2-1
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