Wiring Diagram - Mitsubishi Electric PCA Series Service Manual

7

WIRING DIAGRAM

PCA-A24KA7.TH
SYMBOL NAME
I.B INDOOR CONTROLLER BOARD
CN2L CONNECTOR (LOSSNAY)
CN24 CONNECTOR (BACK-UP HEATING)
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51
CONNECTOR (CENTRALLY CONTROL)
CN105 CONNECTOR
FUSE FUSE (T6.3AL250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (R.B)
LED3 TRANSMISSION (INDOOR-OUTDOOR)
SW1 SWITCH (MODEL SELECTION) Refer to <Table 1>.
SW2 SWITCH (CAPACITY CODE) Refer to <Table 2>.
SWE CONNECTOR (EMERGENCY OPERATION)
X1 RELAY (DRAIN PUMP)
MF FAN MOTOR
MV VANE MOTOR
<Table 1> <Table 2>
SW1(MODEL SELECTION) SW2(CAPACITY CODE)
SW1
MODELS
Manufacture/Service
PCA-A24KA
1 2 3 4 5
ON
OFF
PCA-A30KA
I.B
20 18 16 14 12 10 8 6 4
19 17 15 13 11 9 7 5 3
CNV
(WH)
CN4Y
CN90
(WH) (WH)
1 9 1 4
5
4
9
5
CNB
BZ I-SEE
SENSOR
M
SW1 LED2 I-SEE SENSOR
(OPTION PART)
MV
SW2
LED1
RU
W.B
(OPTION PART)
Notes: 1.
2.
3.
system of power and signal.
1:Use copper supply wire.
Utilisez des fils d'alimentation en cuivre.
OCH638
PCA-A30KA7.TH
SYMBOL
TB4 TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TB5
TRANSMISSION LINE)
TH1 ROOM TEMP. THERMISTOR
TH2 PIPE TEMP. THERMISTOR/LIQUID
TH5
COND. / EVA. TEMP. THERMISTOR
OPTION PARTS
W.B PCB FOR IR WIRELESS REMOTE CONTROLLER
BZ
BUZZER
LED1 LED (OPERATION INDICATION : GREEN)
LED2 LED (PREPARATION FOR HEATING : ORANGE)
RU RECEIVING UNIT
SW1 EMERGENCY OPERATION (HEAT)
SW2 EMERGENCY OPERATION (COOL)
DP DRAIN PUMP
FS DRAIN FLOAT SWITCH
WIRED REMOTE CONTROLLER BOARD
R.B
TB6 TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
MT I-SEE SENSOR MOTOR
SW2
Manufacture/Service MODELS Manufacture/Service
1 2 3 4 5 1 2 3 4 5
PCA-A36KA
ON
OFF
1 2 3 4 5
1 2 3 4 5
PCA-A42KA
ON
OFF
Refer to tables 1 and 2
J41 J42
2 SW1 SW2
1
Pair No.
5
CN2L
(RD)
2 1
LED3 LED2 LED1
ON OFF
CN6Y CN105 CN4F
(RD) (RD) (WH)
1 6 1 5 1 4
When attaching
When attaching
M
drain pump
drain pump
(Option part) (Option part)
MT
remove the
CN4F
jumper
(WH)
connector
CN4F and fit
the drain float
switch (FS).
:
PCA-A36KA7.TH
NAME
(OPTION PART)
TB5
1
ON
2
OFF
TRANSMISSION
WIRES
ON
DC12V
OFF
2
CN32
(WH)
1 3
1 3
CN24
CN3C
CN51(WH)
(YE)
(BU)
1 2 1
CN41(WH)
1 2
CN22
4 1
(BU)
SWE
CN44 CN20
(WH) (RD)
1 4 1 2
tº tº tº
TH2 TH5 TH1
Be sure to turn off the source power
1 4
and then disconnect fan motor connector CNMF.
(Failure to do so will cause trouble in fan motor)
FS
:Terminal block.
15
PCA-A42KA7.TH
R.B
TB4
TB6
YE YE
1
S1
OG OG
2
S2
S3
OG
BN
1 3 5
CN01
(BK)
FUSE
X1
CNMF
(WH)
3 1
7 4 1 CNP
(BU)
M
MS
3~ 1~
DP (OPTION PART)
MF
).
.
1
TO OUTDOOR
UNIT