11. DETACHMENTS
No.
①
②
Remarks
Procedure
Part name
Electrical
parts
box cover
1. Detachment
1) Remove the fixing screws A fixing the electrical parts
box cover.
Loosen the fixing screws B.
2) Slide the electrical parts box cover to the arrow direction
and remove
the electrical parts box cover
.
2. Attachment
1) Hang the electrical parts box cover to the screws B
and tighten the screws.
2) Attach the removed screws A to the original positions.
Control
P.C. board
MCC-1643
WARNING
Be sure to stop operation of the air conditioner before
work and then turn off switch of the breaker.
CAUTION
Be sure to put on gloves during working time;
otherwise an injury will be caused by a part, etc.
Screw B
Screw A
Electrical parts box
cover
1.
Detachment
1)
Perform 1 of
①
t
o remove the electrical parts box
cover
.
2)
Remove the connector of the below No. from the P.C.
board
.
3)
Unlock the locking card spacers (4 positions) in the
electrical parts box to remove the control P.C. board.
CN41 : A,B terminal block (2P, Blue)
CN67 : Power supply terminal block (5P: Black)
CN101 : TC sensor (2P
,
Black)
CN102 : TCJ sensor (2P, Red)
CN104 :
TA sensor
(2P, Yellow)
CN521 : UART(5P,Red)
CN22 : Ground (Faston terminal)
CN34 :
Float switch (3P, Red) *Option
NOTE
First unlock the housing and then remove the
connectors.
Power supply
CN67
Ground
CN22
UART
CN521
A,B terminal CN41
TA Sensor
CN104
TC Sensor
CN101
TCJ Sensor
CN102
Float switch
CN34
Card spacer
(4 positions)
Noise filter P.C. board
MCC-1551
Fan cotrol P.C.
board MCC-1610
Cotrol P.C. board
MCC-1643
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