Toshiba MMU-UP0091HP-E Service Manual page 200

MMD－UP0721HP-E(TR) to UP0961HP-E(TR)
WARNING
Be sure to stop operation of the air conditioner before
work and then turn off switch of the breaker.
Part name
No.
①
Electrical
1. Detachment
parts
1) Remove the fixing screws A fixing the electrical parts
box cover box cover.
Loosen the fixing screws B.
2) Slide the electrical parts box cover to the arrow direction
and remove the panel.
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.
②
Control
1. Detachment
P.C. board 1) Perform 1 of ①.
MCC-1643
(In 1 of ①, the removal of the control P.C board is
possible even if you do not finish ① ).
2) Unlock the locking card spacers (4 positions) in the
electrical parts box to remove the control P.C. board.
NOTE
First unlock the housing and then remove the
connectors.
CN41 : A,B terminal block (2P, Blue)
CN40 : U1,U2 terminal block (2P, Blue)
CN67 : Power supply terminal block (5P: Black)
CN100 : TC1 sensor (3P: Brown)
CN101 : TC2 sensor (2P: Black)
CN102 : TCJ sensor (2P, Red)
CN104 : Room temperature (2P, Yellow)
CN82 : PMV motor(6P,Blue)
CN521 : UART(5P,Red)
CN22 : Ground (Faston terminal)
CN34 : Float switch (3P, Red) *Option
Be sure to put on gloves during working time;
otherwise an injury will be caused by a part, etc.
Procedure
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CAUTION
Remarks
Screw B
Electrical parts box
cover
Screw A
Cotrol P.C. board
Fan cotrol P.C.
MCC-1643
board MCC-1610
Noise filter P.C. board
MCC-1551
Room TC2 Sensor
temp- CN101
TCJ Sensor
erature
CN102
CN104
TC1 Sensor
CN100
A,B terminal CN41
U1,U2 terminal
CN40
Float switch
CN34
UART
CN521
PMV
CN82
Ground
CN22
Power supply
CN67