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Mitsubishi Electric FR-CS84-012 Instruction Manual Page 29

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 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 since heat from the bottom
inverters can increase the temperatures in the top inverters, causing inverter failures.
When mounting multiple inverters, fully take caution not to make the surrounding air temperature of the inverter higher than the
permissible value by providing ventilation and increasing the enclosure size.
Inverter
Inverter
Enclosure
(a) Horizontal arrangement
Arrangement of multiple inverters
 Arrangement of the ventilation fan and inverter
Heat generated in the inverter is blown up from the bottom of the unit as warm air by the cooling fan. When installing a
ventilation fan for that heat, determine the place of ventilation fan installation after fully considering an air flow. (Air passes
through areas of low resistance. Make an airway and airflow plates to expose the inverter to cool air.)
Inverter
<Good example>
Arrangement of the ventilation fan and inverter
28
2. INSTALLATION AND WIRING
2.3 Installation of the inverter and enclosure design
Inverter
Inverter
Guide
Guide
Inverter
Inverter
Enclosure
(b) Vertical arrangement
Inverter
<Bad example>
Guide

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