Mitsubishi FR-E 500 Instruction Manual page 202

(For the FR-E540-1.5K to 7.5K-NA)
1) After confirming the orientation of
the fan, reinstall the fan to the
cover so that the arrow on the left
of "AIR FLOW" faces in the
opposite direction of the fan cover.
Note: If the air flow is set in the
wrong direction, the
inverter life can be shorter.
2) Reinstall the fan cover to the
inverter.
Run the cable through the wiring
groove to prevent it from being
caught between the chassis and
cover.
3) Reconnect the cable to the
connector.
4) Reinstall the inverter front cover.
PROTECTIVE FUNCTIONS
↑AIR FLOW
186
Wiring groove
Fan connector