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Installation
(2) Clearances around the converter
To ensure ease of heat radiation and maintenance, leave at least the shown clearance around the converter. At least the
following clearance are required under the converter as a wiring space, and above the converter as a heat radiation space.
Surrounding air temperature and humidity
Measurement
position
Converter
5cm
5cm
Measurement
5cm
position
Temperature:
-10°C to 50°C
Ambient humidity:
90% RH maximum
Leave enough clearance and take
cooling measures.
REMARKS
For replacing the cooling fan of the 160K or higher, 30cm of space is necessary in front of the inverter. Refer to page 141 for fan
replacement.
(3) Converter mounting orientation
Mount the converter on a wall as specified. Do not mount it horizontally or any other way.
(4) Above the converter
Heat is blown up from inside the converter by the small fan built in the unit. Any equipment placed above the converter should
be heat resistant.
(5) Arrangement of multiple inverters and converters
When installing multiple inverters and converters in the
same enclosure, generally arrange them horizontally as
shown in the right 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 converters can increase the temperatures in the
top inverters, causing inverter failures.
When installing multiple inverters and converters, full
caution must be taken not to let the surrounding air
temperature of the converters and inverters exceed the
permissible value. Avoid the temperature to exceed the
value by providing ventilation and increasing the
enclosure size, etc.
(6) Placement of ventilation fan and converter
Heat generated in the converter 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 converter to cool air.)
20
Clearance (front)
55K or lower
75K or higher
10cm
or more
5cm
5cm
or more
or more
10cm
or more
Converter
(a) Horizontal arrangement
Arrangement of multiple inverters and converters
20cm or more
10cm
or more
20cm or more
Inverter
Inverter
Guide
Converter
Enclosure
Enclosure
(b) Vertical arrangement
Converter
<Good example>
Placement of ventilation fan and converter
Clearance (side)
5cm
Converter
or more
Inverter
Guide
Guide
Converter
Converter
<Bad example>
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