Installation And Connection; Mechanical Installation; Environmental Conditions; Positioning And Mounting - WEG CFW300 User Manual

3 INSTALLATION AND CONNECTION

3.1 MECHANICAL INSTALLATION

3.1.1 Environmental Conditions

Avoid:
Direct exposure to sunlight, rain, high humidity or sea-air.
„
Inflammable or corrosive gases or liquids.
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Excessive vibration.
„
Dust, metallic particles or oil mist.
„
Environment conditions permitted for the operation of the inverter:
Temperature surrounding the inverter: 0 ºC to 50 ºC ( 32 ºF to 122 ºF) - IP20.
„
For temperatures surrounding the inverter higher than the specifications above, it is necessary
„
to apply a 2 % of current derating for each degree Celsius, limited to an increase of 10 ºC (50 ºF).
Air relative humidity: 5 % to 95 % non-condensing.
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Maximum altitude: up to 1000 m (3.300 ft) - rated conditions.
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From 1000 m to 4000 m (3.300 ft to 13.200 ft) - 1 % of current derating for each 100 m
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above 1000 m of altitude.
Pollution degree: 2 (according to EN50178 and UL508C), with non-conductive pollution.
„
Condensation must not originate conduction through the accumulated residues.

3.1.2 Positioning and Mounting

The external dimensions and fixing holes, and the inverter net weight (mass) are shown in
Figure B1 on page 116.
Mount the inverter in the upright position on a flat and vertical surface. Allow the minimum
clearances indicated in
air. Do not install heat sensitive components right above the inverter.
ATTENTION!
When installing two or more inverters vertically, respect the minimum clearance
„
A + B (as shown in
so that the heat rising up from the lower inverter does not affect the top inverter.
Provide independent conduits for the physical separation of signal, control and
„
power cables (refer to

3.1.2.1 Cabinet Mounting

For inverters installed inside cabinets or metallic boxes, provide proper exhaustion, so that the
temperature remains within the allowed range. Refer to the dissipated powers in
Figure B2 on page 117, in order to allow the circulation of the cooling
Figure B2 on page
Section 3.2 ELECTRICAL INSTALLATION on page
Installation and Connection
117) and provide an air deflecting plate
Table B2 on page
10).
114.
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