Pca-A24Ka7 Pca-A30Ka7 Pca-A36Ka7 Pca-A42Ka7 - Mitsubishi Electric PLA-A12EA7 Service Manual

5 WIRING DIAGRAM
PCA-A24KA7 PCA-A30KA7
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
The black square(■)indicates a switch position.
<Table 1> <Table 2>
SW1(MODEL SELECTION) SW2(CAPACITY CODE)
SW1
Manufacture/Service
PCA-A24KA
1 2 3 4 5
ON
OFF
PCA-A30KA
I.B
20 18 16 14 12 10 8 6
19 17 15 13 11 9 7 5
CNV
(WH)
CN90 CN4Y
(WH) (WH)
1 4
1 9
4
9
5
CNB
BZ
I-SEE
SENSOR
M
I-SEE SENSOR
SW1 LED2
(OPTION PART)
MV
SW2 LED1
RU
W.B
(OPTION PART)
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.
4. This diagram shows the wiring of indoor and outdoor connecting wires (specification of 208V/230V), adopting superimposed
system of power and signal.
● For power supply system of this unit, refer to the caution label located near this diagram.
1:Use copper supply wire.
Utilisez des fils d'alimentation en cuivre.
Due to continuing improvement, above specification may be subject to change without notice.
© 2017 Mitsubishi Electric US, Inc.
PCA-A36KA7
SYMBOL
TB4
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TB5
TRANSMISSION LINE)
TH1
ROOM TEMP. THERMISTOR
(32ºF / 15kΩ, 77ºF / 5.4kΩ DETECT)
TH2 PIPE TEMP. THERMISTOR/LIQUID
(32ºF / 15kΩ, 77ºF / 5.4kΩ DETECT)
TH5
COND. / EVA. TEMP. THERMISTOR
(32ºF / 15kΩ, 77ºF / 5.4kΩ DETECT)
OPTION PARTS
W.B PCB FOR IR WIRELESS REMOTE CONTROLLER
BZ BUZZER
LED1
LED (OPERATION INDICATION : GREEN)
LED2 LED (PREPARATION FOR HEATING : ORANGE)
RECEIVING UNIT
RU
SW1 EMERGENCY OPERATION (HEAT)
SW2 EMERGENCY OPERATION (COOL)
DP DRAIN PUMP
FS DRAIN FLOAT SWITCH
R.B WIRED REMOTE CONTROLLER BOARD
TB6 TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
MT I-SEE SENSOR MOTOR
SW2
MODELS Manufacture/Service MODELS Manufacture/Service
1 2 3 4 5
PCA-A36KA
ON
OFF
1 2 3 4 5
PCA-A42KA
ON
OFF
Refer to tables 1 and 2
J41 J42
4 2 SW1 SW2
3 1
Pair No.
CN2L
(RD)
2 1
LED3 LED2 LED1
CN6Y CN105 CN4F
(RD) (RD) (WH)
1 6 1 5 1
5
When attaching
M
drain pump
(Option part),
MT
remove the
jumper
connector
CN4F and fit
the drain float
switch (FS).
:Connector,
PCA-A42KA7
NAME
TB5
1 2 3 4 5
1
ON
2
OFF
TRANSMISSION
WIRES
1 2 3 4 5
ON DC12V
OFF
2
CN32
(WH)
1 3
1 3
CN24
CN3C
CN51(WH)
(YE)
(BU)
5 1 2 1
CN41(WH)
1 2
CN22
4 1
(BU)
SWE
ON OFF
CN44 CN20
(WH) (RD)
4 1 4 1 2
tº tº tº
When attaching
TH2 TH5 TH1
drain pump
Be sure to turn off the source power
(Option part)
1 4
and then disconnect fan motor connector CNMF.
CN4F
(WH)
(Failure to do so will cause trouble in fan motor)
FS
:Terminal block.
P-Series (March 2017)
(OPTION PART)
R.B
TB4
TB6
YE YE
1
OG OG
2
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
S1
TO OUTDOOR
S2
UNIT
S3
41