Wiring Diagram - Mitsubishi Electric Mr. Slim PLA Series Service Manual

7

WIRING DIAGRAM

INDOOR UNIT
PLA-A12BA6
PLA-A30BA6
[LEGEND]
SYMBOL NAME
I.B INDOOR CONTROLLER BOARD
CN2L CONNECTOR (LOSSNAY)
CN24 CONNECTOR<BACK-UP HEATING>
CN30 CONNECTOR<LLC>
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51 CONNECTOR (CENTRALLY CONTROL)
CN105 CONNECTOR (RADIO FREQUENCY INTERFACE)
FUSE
FUSE (T6.3AL250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (R.B)
LED3 TRANSMISSION (INDOOR-OUTDOOR)
SW1
SWITCH (MODEL SELECTION)
SW2
SWITCH (CAPACITY CODE)
SWE CONNECTOR (EMERGENCY OPERATION)
X1 RELAY (DRAIN PUMP)
DP DRAIN-UP MACHINE
FS DRAIN FLOAT SWITCH
RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT
RFI
<Table 2>SW2(CAPACITY CODE)
SW2
MODELS Service MODELS
1 2 3 4 5
PLA-A12BA6 PLA-A30BA6
ON
OFF
1 2 3 4 5
PLA-A18BA6 ON PLA-A36BA6
OFF
1 2 3 4 5
PLA-A24BA6 ON PLA-A42BA6
OFF
The black square )indicates a switch position.
I.B
VANE CNV(WHT)
20 18 16 14 12 10 8 6 4 2
19 15 13 11 9 5 3 1
LED3
WIRELESS
1 3
CN90
CN3G
(WHT)
1 9
(BLK)
9
CNB
5 5 5 5
BZ
LED2
SW1
M M M M
LED1
SW2
MV MV MV MV
RU
W.B
GRILLE
Notes: 1. SymboIs used in wiring diagram above are,
2. Indoor and outdoor connecting wires are made with poIarities, make wiring matching terminal numbers (S1, S2, S3).
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
1.Use copper supply wires.
,
Utilisez des fils d alimentation en cuivre.
OCH581
PLA-A18BA6
PLA-A36BA6
SYMBOL
MF FAN MOTOR
MV VANE MOTOR
TB4 TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TB5,TB6
TRANSMISSION LINE)
TH1
ROOM TEMP. THERMISTOR
TH2 PIPE TEMP. THERMISTOR/LIQUID
TH5
COND. / EVA. TEMP. THERMISTOR
OPTION PART
See table 1 W.B PCB FOR IR WIRELESS REMOTE CONTROLLER
BZ
See table 2 BUZZER
LED1 LED (OPERATION INDICATION : GREEN)
LED2 LED (PREPARATION FOR HEATING : ORANGE)
RU RECEIVING UNIT
SW1 EMERGENCY OPERATION (HEAT / DOWN)
SW2 EMERGENCY OPERATION (COOL / UP)
R.B WIRED REMOTE CONTROLLER BOARD
TB6
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
Service
1 2 3 4 5
Refer to tables 1 and 2
ON
OFF
1 2 3 4 5
ON
OFF
1 2 3 4 5 TRANSMISSION
2 1
ON
WIRES
OFF
TB6
DC12V
R.B
J41 J42 CN32
SW1 SW2
(WHT)
CN51(WHT) CN24(YLW)
Pair No.
5
CN41(WHT)
CN2L
2 1
4
LED2 LED1
SWE
ON OFF
I-SEE I-SEE
FLOAT SW
CN105
SENSOR SENSOR MOTOR
CN4F
CN4Y CN6Y (RED)
(WHT)
(WHT) (RED)
1 5
1 4 1 6 1
5
5
4
M FS
I-SEE
RFI
SENSOR
MT
I-SEE SENSOR
CORNER PANEL
(OPTION PART)
: Connector,
PLA-A24BA6
PLA-A42BA6
NAME
<Table 1>SW1(MODEL SELECTION)
TB5
SW1
2
Service
1
1 2 3 4 5
ON
OFF
2
1 3
1 3
INDOOR/OUTDOOR
COMMUNICATION
1 2 DC280V
1
CN3C
RECTIFICATION
(BLU)
1 2
REMOCON
1
CN22
(BLU)
LIQUID/PIPE INTAKE
FAN
CN44 CN20 CN30
CNMF
(GRN)
(WHT) (RED)
(WHT
)
4 1 4 1 2 1 3 4
MS
3~
t° t° t°
TH2 TH5 TH1 MF
Be sure to turn off the source power
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor)
: Terminal block.
YLW YLW
ORN ORN
1 3 5
OUTDOOR
CN01
ORN
(BLK)
BRN
FUSE
X1
D.U.M
CNP CNAC
1 3 1 1 3
(WHT)
(BLU)
M
1~
DP
TB4
S1
TO
OUTDOOR
S2
UNIT
S3