Mitsubishi Electric FR-A700 Instruction Manual page 161

Inspection item
• Removal (FR-A740-160K or more)
1) Remove a fan cover.
2) After removing a fan connector, remove a fan block.
3) Remove the fan.
* The number of cooling fans differs according to the inverter capacity. (refer to page 154.)
• Reinstallation (FR-A740-160K or more)
1) After confirming the orientation of the fan, reinstall the fan so that the arrow on the left of "AIR FLOW" faces up.
2) Install fans referring to the above figure.
CAUTION
•
Installing the fan in the opposite air flow direction can cause the inverter life to be shorter.
•
Prevent the cable from being caught when installing a fan.
•
Switch the power off before replacing fans. Since the inverter circuits are charged with voltage even after power off,
replace fans only when the inverter cover is on the inverter to prevent an electric shock accident.
(2) Replacement procedure of the cooling fan when using a heatsink protrusion attachment
(FR-A7CN)
When replacing a cooling fan, remove a top cover of the
heatsink protrusion attachment and perform replacement.
After replacing the cooling fan, replace the top cover in the
original position.
156
Fan *
Fan connection
connector
3)
2)
1)
AIR FLOW
<Fan side face>
Top cover