Mitsubishi Electric FR-A800 Plus Series Installation Manuallines page 8

INSTALLATION AND INSTRUCTIONS
1.2 Installation of the inverter
O Install the inverter on a strong surface securely with screws.
O Leave enough clearances and take cooling measures.
O Avoid places where the inverter is subjected to direct sunlight, high temperature and high humidity.
O Install the inverter on a nonflammable surface.
O When encasing multiple inverters, install them in parallel as a cooling measure.
O 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.
*1
For the FR-A820-00250(3.7K)-R2R or lower and FR-A840-00126(3.7K)-R2R or lower allow 1 cm or more clearance.
*2
When using the FR-A820-01250(22K)-R2R or lower and FR-A840-00620(22K)-R2R or lower at the surrounding air temperature of 40 °C or less
(30 °C or less for the SLD rated inverter), side-by-side installation (0 cm clearance) is available.
*3
For replacing the cooling fan of the FR-A840-04320(160K)-R2R or higher, and of the FR-A842-R2R models, 30 cm of space is necessary in front of
the inverter. Refer to the "FR-A800 Instruction Manual (Detailed)" and "FR-A802-R2R Instruction Manual (Hardware)" for fan replacement.
1.2.1 Installation orientation of the inverter
Install the inverter on a wall as specified. Do not mount it horizontally or in any other way.
1.2.2 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.
2
Fix six positions for the
FR-A840-04320(160K)-R2R or higher and for the
FR-A842-R2R models (separated converter type).
Clearances (side)
FR-A820-03160(55K)-R2R or lower,
FR-A840-01800(55K)-R2R or lower
M 10 cm
M 5 cm M 5 cm
*1, *2
*1, *2
Vertical
M 10 cm
FR-A820-03800(75K)-R2R or higher,
FR-A840-02160(75K)-R2R or higher,
FR-A842-R2R
M 20 cm
M 10 cm M 10 cm
M 20 cm
Clearances (front)
M 5 cm
*1, *3