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4.3 Tools Needed
I-beam and hooks rated to lift the weight of the drive.
Crane or other lifting aid to place the unit into position.
Drill with a 12 mm (1/2 in) drill bit.
Tape measurer.
Phillips and flat bladed screwdrivers.
Wrench with 7–17 mm metric sockets.
Wrench extensions.
T25 and T50 Torx drives.
Sheet metal punch and/or pliers for cable entry plate.
4.4 Storing the Drive
Store the drive in a dry location. Keep the equipment sealed in its packaging until installation. Refer to the
Ambient Conditions
section for recommended ambient temperature.
Periodic forming (capacitor charging) is not necessary during storage unless storage exceeds 12 months.
4.5 Operating Environment
4.5.1 Overview
In environments with airborne liquids, particles, or corrosive gases, ensure that the IP/NEMA protection rating of the equipment
matches the installation environment. Refer to the
Ambient Conditions
section.
N O T I C E
CONDENSATION
Moisture can condense on the electronic components and cause short circuits.
Avoid installation in areas subject to frost.
Install an optional space heater when the unit is colder than the ambient air.
Operating in standby mode reduces the risk of condensation as long as the power dissipation keeps the circuitry free of
moisture.
N O T I C E
EXTREME AMBIENT CONDITIONS
Hot or cold temperatures compromise unit performance and longevity.
Do not operate in environments where the ambient temperature exceeds 50 °C (122 °F) for units rated at 400–500 V and
45 °C (113 °F) for units rated at 525–690 V unless the drive is derated. Refer to the
Derating section
in the design guide.
The unit can operate at temperatures down to -10 °C (14 °F). However, proper operation at rated load is only guaranteed at
0 °C (32 °F) or higher. Also, temperature feedback is not shown when temperatures are below 0 °C (32 °F).
Provide extra air conditioning for the cabinet or installation site when the temperature exceeds ambient temperature limits.
4.5.2 Gases
Aggressive gases, such as hydrogen sulphide, chlorine, or ammonia can damage the electrical and mechanical components. The
unit uses conformal-coated circuit boards to reduce the effects of aggressive gases.
For conformal coating class specifications and ratings, see the
Ambient Conditions
section.
4.5.3 Dust
When installing the unit in a dusty environment, keep the following free from dust buildup:
AQ357954340588en-000201 / 130R0881 | 35
Danfoss A/S © 2020.09
Mechanical Installation
VLT® Refrigeration Drive FC 103
Operating Guide
