Installation And Connection; Mechanical Installation; Installation Environment; Mounting Considerations - WEG CFW-11 User Manual

INSTALLATION AND CONNECTION

This chapter provides information on installing and wiring the CFW-11.
The instructions and guidelines listed in this manual shall be followed
to guarantee personnel and equipment safety, as well as the proper
operation of the inverter.

3.1 MECHANICAL INSTALLATION

3.1.1 Installation Environment

Avoid installing the inverter in an area with:
Direct exposure to sunlight, rain, high humidity, or sea-air;
Inflammable or corrosive gases or liquids;
Excessive vibration;
Dust, metallic particles, and oil mist.
Environment conditions for the operation of the inverter:
Temperature: -10 ºC to 45 ºC (14 °F to 113 °F) - standard conditions (surrounding the inverter).
From 45 ºC to 55 ºC (113 °F to 131 °F) - current derating of 2 % each °C (or 1.11 % each °F) above 45 ºC
(113 °F).
Humidity: from 5 % to 90 % non-condensing.
Altitude: up to 1000 m (3,300 ft) - standard conditions (no derating required).
From 1000 m to 4000 m (3,300 ft to 13,200 ft) - current derating of 1 % each 100 m (or 0.3 % each 100 ft)
above 1000 m (3,300 ft) altitude.
Pollution degree: 2 (according to EN50178 and UL508C) with non-conductive pollution. Condensation shall
not originate conduction through the accumulated residues.

3.1.2 Mounting Considerations

Consult the inverter weight at the table 8.1.
Mount the inverter in the upright position on a flat and vertical surface.
External dimensions and fixing holes position according to the figure 3.1. Refer to the section 8.3 for more
details.
First put the screws on the surface where the inverter will be installed, install the inverter and then tighten the
screws.
Minimum mounting clearances requirements for proper cooling air circulation are specified in figure 3.2.
Do not install heat sensitive components right above the inverter.
Installation and Connection
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