Wiring Diagram - Mitsubishi Electric PLA-A·BA4 Technical Data Manual

5

WIRING DIAGRAM

PLA-A12BA4 PLA-A18BA4 PLA-A24BA4 PLA-A30BA4 PLA-A36BA4 PLA-A42BA4
[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 PUMP
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-A12BA4 PLA-A30BA4
ON
OFF
1 2 3 4 5
PLA-A18BA4 PLA-A36BA4
ON
OFF
1 2 3 4 5
PLA-A24BA4 PLA-A42BA4
ON
OFF
■
The black square ( ) indicates a switch position.
I.B
VANE CNV (WHT )
20 18 16 14 12 10 8 6 4 2
19 17 15 13 11 9 7 5 3 1
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.
30
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
(32°F / 15kΩ, 77°F / 5.4kΩ DETECT)
TH2
PIPE TEMP. THERMISTOR/LIQUID
(32°F / 15kΩ, 77°F / 5.4kΩ DETECT)
TH5
COND. / EVA. TEMP. THERMISTOR
(32°F / 15kΩ, 77°F / 5.4kΩ DETECT)
OPTION PART
See table 1 PCB FOR IR WIRELESS REMOTE CONTROLLER
W.B
See table 2 BZ 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
2 1
ON
OFF
TB6
R.B
J41 J42
SW1 SW2
CN51 (WHT ) CN24 (YLW )
Pair No.
5
CN41 (WHT )
CN2L
2 1
LED3 LED2 LED1
SWE
ON OFF
I-SEE I-SEE
CN105
SENSOR SENSOR MOTOR
CN4Y CN6Y (RED )
(WHT ) (RED )
1 4 1 6 1 5
5
5
4
M
I-SEE
RFI
SENSOR
MT
I-SEE SENSOR
CORNER PANEL
(OPTION PART)
: Connector,
NAME
<Table 1>SW1 (MODEL SELECTION)
TB5
SW1
2
Service
1
1 2 3 4 5
TRANSMISSION
WIRES
2
DC12V
CN32
(WHT )
1 3
1 3
INDOOR/OUTDOOR
COMMUNICATION
2
1 1
CN3C
(BLU)
1 2
REMOCON
4 1
CN22
(BLU)
FLOAT SW LIQUID/PIPE INTAKE
CN30
CN4F CN44 CN20
(GRN )
(WHT ) (WHT ) (RED )
1 4 1 4 1 2 1 3 7
t° t° t°
FS TH2 TH5 TH1
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 .
ON
OFF
1 3 5
OUTDOOR
CN01
(BLK)
FUSE
DC280V
RECTIFICATION
X1
FAN
D.U.M
CNMF
CNP CNAC
(WHT )
4 1 3 1 1 3
(BLU ) (WHT )
M
MS
1~
3~
DP
MF
1
TB4
YLW YLW
S1
TO
ORN ORN
S2 OUTDOOR
UNIT
S3
ORN
BRN