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2. Installation and Wiring
2.3 Installation of the inverter and enclosure design
2.3.3
Inverter installation
Inverter placement
• Remove the front cover and wiring cover to fix the inverter.
• Install the inverter on a strong surface securely with screws.
• Leave enough clearances and take cooling measures.
• Avoid places where the inverter is subjected to direct sunlight, high temperature and high humidity.
• Install the inverter on a nonflammable wall surface.
• When encasing multiple inverters in an enclosure, install them in parallel as a cooling measure.
• For heat dissipation and maintenance, keep clearance between the inverter and the other devices or enclosure surface.
The clearance below the inverter is required as a wiring space, and the clearance above the inverter is required as a heat
dissipation space.
• When designing or building an enclosure for the inverter, carefully consider influencing factors such as heat generation of
the contained devices and the operating environment.
*1
When using the inverters at the surrounding air temperature of 40°C or less, the inverters can be installed closely attached (0 cm clearance).
Installation orientation of the inverter
Install the inverter on a wall as specified. Do not mount it horizontally or in any other way.
Above the inverter
Heat is blown up from inside the inverter by the small fan built in the unit. Any equipment placed above the inverter should be
heat resistant.
Arrangement of multiple inverters
When multiple inverters are placed in the same enclosure, generally arrange them horizontally as shown in the figure (a). When
it is inevitable to arrange them vertically to minimize space, take such measures as to provide guides between the inverters
since heat generated in the inverters in bottom row can increase the temperatures in the inverters in top row, causing inverter
failures.
Comb-shaped wiring cover
Front cover
Clearances (side)
Clearances (front)
V
ertical
Allow clearance.
10 cm
or more
10 cm
or more
1 cm
or more
*1
1 cm
or more
1 cm
or more
*1