Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 452

Table of Contents

Removal (FR-A740-03250 or higher)

1) Remove a fan cover.

2) After removing a fan connector, remove a fan block.

3) Remove the fan. (Make sure to remove the fan cable from the clamp of the fan block beforehand.)

Reinstallation (FR-A740-03250 or higher)

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.

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

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.

* The number of cooling fans differs according to the inverter capacity.

Fan connection

Inspection item