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P.C. board assembly
Terminal block
Hanging hook
Fan lower case
Multi blade fan
Drain pan
Drain pan
assembly side
assembly side
Drain pan
assembly side
Arrange the multi blade fan so that
screws position at the right side
against the drain pan assembly.
No.
5
6
Part name
P.C. board
assembly
Multi blade fan case,
fan lower case,
fan upper case
Procedure
1. Detachment
1) Perform works 1. of
2
, 1. of
3
, and 1. of
4
.
2) Disconnect connectors which are connected
from P.C. board assembly to other parts.
NOTE)
Unlock the lock of the housing to disconnect the
connectors.
CN41 : Remote controller terminal (2P: Blue)
Remote controller terminal block: 2P
CN67 : Power supply terminal (3P: Black)
CN101 : TC sensor (2P: Black)
CN102 : TCJ sensor (2P: Red)
CN333 : Fan motor power supply (5P: White)
CN334 : Detection of fan motor position (3P: White)
(In case of drain pump incorporated model)
CN34 : Float SW (3P: Red)
CN504 : Drain pump lead (2P: White)
3) Unlock the lock of the card edge spacer, and then remove P.C. board assembly.
2. Attachment
1) Attach P.C. board assembly to the card edge spacer.
2) Using wires connect connectors as before, which were disconnected in
procedure 1. 2) of
5
.
NOTE)
Check there is no missing or poor contact of the connectors.
1. Detachment
1) Perform work 1. of
2
.
2) Take off hanging hooks at both sides of the
lower fan case to remove fan lower case.
3) Remove the upper fan case while taking off
hooks of fan upper case which are hooked to
the partition board.
4) Loosen hexagonal hole screw of the multi
blade fan to remove multi blade fan from the
shaft. If necessary, remove multi blade fan
and then remove fan upper case.
2. Attachment
1) Determine the position so that multi blade fan
positions at the center of the fan upper case,
and then fix it with hexagonal hole screw.
NOTE)
Arrange the multi blade fan so that screws
position at the right side against the drain pan
assembly.
NOTE)
Fix multi blade fan with torque wrench 4.9 N•m
or more.
2) Hook the lower fan case as before and attach
it with hooks.
NOTE)
Finally check whether the multi blade fan turns
surely and smoothly or not.
Remarks