Fuji Electric FRENIC-HVAC User Manual page 687

FRN125AR1S-2U, FRN150AR1S-4U to FRN1000AR1S-4U , FRN200AR1S-5U to FRN300AR1S-5U
(taking FRN300AR1S-4U as an illustration example)
Shut down the main power, auxiliary control power, and auxiliary fan power inputs of the inverter.
An accident or electric shock could occur.
(1) Loosen the mounting screws on the upper
front cover, slide the cover in the direction
of the arrow, and remove it toward you.
(2) Disconnect the fan power connector.
(3) Remove the fan unit mounting screws and
pull out the fan unit towards you.
10.6 Cooling Fan Replacement Procedure
10-17