Toshiba MMU-AP0074YH-E(-TR) Service Manual page 115

N . o P a t r n a m e
1. Detachment
6 Electrical
control box
1) Perform works of procedure 1-1- and 2-1.
2) Remove connectors of the lead wire connected to the following connectors of the control P.C. board.
CN33:
CN34:
CN68:
CN100: TC1 sensor (3P, Brown)
CN101: TC2 sensor (2P, Black)
CN102: TCJ sensor (2P, Red)
CN82:
CN333: Fan motor power supply (5P, White)
CN334: Fan motor position detection (5P, White)
NOTE
Remove the connectors after unlocking the
lock of the housing.
3) Remove each lead wire from cord
4) Remove the power supply wiring,
5) Take off screws (Ø4 × 10, 2 pcs.)
2. Attachment
1) Tighten screws (Ø4 × 10, 2 pcs.) fixing the electrical control box.
2) Connect the connectors as original before being removed in item 1.
3) Perform power supply wiring, remote controller wiring, and crossover wiring between inside and outside.
NOTE
For drawing of each wire and position of ferrite core, perform wiring same as those before removing. If there is
incomplete drawing of wire, short or water leakage of the parts may be caused.
Fix the sensor lead wires firmly with the cord clamp
so that they do not touch with the caution plate of
the terminal block and they do not slacken at P.C.
board side. (3 positions)
Arrange the clamp at the position as shown in the
figure.
Adhere on the transformer.
P o r c e d
Louver motor (5P, White)
Float switch (3P, Red)
Drain pump (3P, Blue)
PMV (6P, Blue)
clamps in the electrical control box.
remote controller wiring, and
crossover wiring.
Enlarged drawing
Fix the lead wires with cord clamp
so that the lead wires do not slacken
at P.C board side. (2 positions)
As shown in the figure, store PMV
lead wire connected with connector
assembly so that the connector
positions under wire of the terminal.
Details of PMV lead wire drawing
Fold back the sensor lead wire and
fix it surely with the cord clamp.
Details of sensor lead wire drawing
u e r
Drawing-out port of lead wire
Cord clamp
Cord clamp
– 115 –
R e m a k r s
Ferrite core for sensor lead
Card edge spacer
Ferrite core for fan motor
Arrow view
Be sure that the float switch
lead wire positions at inner side
of the fan motor lead wire.
Cord clamp
Fold back the float switch lead
wire and fix surely with cord
clamp. (There is no catching-
in of P.C. board and lead wire.)
Arrange at position as
shown in the figure.
Details of fan motor lead wire drawing