PIM-00004
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[Operation Manual]
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DAIKIN INDUSTRIES, LTD.
AC fan maintenance procedure
1.
Removing the AC fan
1)
Remove the full cover. (See p. 44)
2)
Open the controller small cover, and remove the fan connector and the fan ground cable. (See p. 44)
3)
Cut the binding strap that ties the fan harness.
4)
Remove the hexagon socket head bolts with washers (M6 L15: two pieces), and remove the AC fan
bracket.
2.
Cleaning the AC fan bracket
Remove the cross recessed head machine screws (M4 L70: two pieces), and separate the AC fan bracket form
the fan motor and the fan guard.
<AC fan>
3.
Cleaning the AC fan bracket
Blow steam or air onto the AC fan bracket to eliminate dust or contamination accumulated on/adhering to the
bracket.
4.
Cleaning the AC fan
Clean the clearance between the blade periphery and the casing, as well as the fan blades and the casing, by
using a cloth.
CAUTION
[1] Prohibition of steam/air blow
Never attempt to blow steam or air onto the fan motor. Steam/air blow causes foreign bodies to be
blown into the motor.
5.
Re-assembling the AC fan
After cleaning the AC fan, re-assemble it.
After reassembling is completed, make sure that the fan normally operates according to the test run procedure
described on p. 29.
(Check if the AC fan air intake/exhaust direction is correct. (See p. 15))
AC fan bracket
AC fan
Finger guard
Cross recessed head machine screw
Hexagon socket head bolt with washer