WEG CFW-11 User Manual - page 28
Installation and Connection
3
3-2 | CFW-11
From 2000 m to 4000 m (6.600 ft to 13.200 ft) above sea level - derating of maximum voltage of 1.1 %
for each 100 m (330 ft) above 2000 m (6.600 ft).
Humidity: from 5 % to 95 % non-condensing.
Pollution degree: 2 (according to EN50178 and UL508C) with non-conductive pollution. Condensation
shall not originate conduction through the accumulated residues.
3.1.2 Positioning and Mounting
Consult the inverter weight at the
Table 8.1 on page 8-2
,
Table 8.2 on page 8-3
and
Table 8.3 on page
8-5
.
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 on page 3-3
. Refer to the
Section
8.5 MECHANICAL DATA on page 8-8
for more details.
First mark the mounting points and drill the mouting holes. Then, position the inverter and firmly tighten the
screws in all four corners to secure the inverter.
Minimum mounting clearances requirements for proper cooling air circulation are specified in
Figure 3.2 on
page 3-4
.
Do not install heat sensitive components right above the inverter.
ATTENTION!
When arranging two or more inverters vertically, respect the minimum clearance A + B (
Figure 3.2
on page 3-4
) and provide an air deflecting plate so that the heat rising up from the bottom inverter
does not affect the top inverter.
ATTENTION!
Provide conduit for physical separation of the signal, control, and power conductors (refer to
Section
3.2 ELECTRICAL INSTALLATION on page 3-8
).