12
WIRING DIAGRAM
7
PCA-A24KA4 PCA-A30KA4 PCA-A36KA4 PCA-A42KA4
INDOOR/OUTDOOR
COMMUNICATION
CN3C
(
BLU
)
<Table 2> SW2 (CAPACITY CODE)
Service
Service
MODELS
SW2
PCA-A36KA4
MODELS
ON
OFF
1 2 3 4 5
PCA-A24KA4
ON
OFF
1 2 3 4 5
PCA-A42KA4
ON
OFF
1 2 3 4 5
PCA-A30KA4
ON
OFF
1 2 3 4 5
1
9
1
1
3
4
5
1
4
1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN2L
ON OFF
SWE
J42
J41
SW2
SW1
LED3
LED2
LED1
LED2
LED1
RU
SW2
SW1
CNB
9
5
t
°
t
°
t
°
TH2 TH5
TH1
MV
BZ
M
W.B
TB6
R.B
I.B
1
4
2 1
2
1
1
2
2
1
1
2
2
1
2
Refer to tables 1 and 2
TRANSMISSION
WIRES
DC12V
TB4
YLW
ORN
ORN
BRN
YLW
ORN
TO OUTDOOR
UNIT
1 3 5
3
3
1
X1
M
1~
DP
(OPTIONAL PARTS)
D.U.M
CNP
(BLU)
FUSE
OUTDOOR
CN01
(
BLK
)
DC294~325V
RECTIFICATION
S1
S2
S3
7
4
1
3~
MF
MS
1
1
3
REMOCON
CN22
(
BLU
)
WIRELESS
CN90
(WHT)
VANE CNV (WHT)
Pair No.
FAN
CNMF
(WHT)
INTAKE
CN20
(RED)
FLOAT SW
CN4F
(WHT)
LIQUID/PIPE
CN44
(WHT)
TB5
CN32
(WHT)
CN51 (WHT)
CN41 (WHT)
<Table 1> SW1 (MODEL SELECTION)
SW1
ON
OFF
1 2 3 4 5
+
Be sure to turn off the source power
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor)
Service
CN24
(
YLW
)
CN30
(
GRN
)
+
1
The black square (
■
)
indicates a switch position.
RFI
SYMBOL
SYMBOL
NAME
NAME
I.B
INDOOR CONTROLLER BOARD
FUSE (T6.3AL250V)
CONNECTOR (LOSSNAY)
CONNECTOR (REMOTE SWITCH)
CONNECTOR (HA TERMINAL-A)
CONNECTOR (CENTRALLY CONTROL)
POWER SUPPLY (I.B)
POWER SUPPLY (R.B)
TRANSMISSION (INDOOR-OUTDOOR)
RELAY (DRAIN PUMP)
SWITCH (MODEL SELECTION)
+
See table 1
SWITCH (CAPACITY CODE)
+
See table 2
CONNECTOR (EMERGENCY OPERATION)
FAN MOTOR
VANE MOTOR
DRAIN PUMP
DRAIN FLOAT SWITCH
TERMINAL BLOCK (INDOOR/OUTDOOR CONNECTING LINE)
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
ROOM TEMP. THERMISTOR
(32°F / 15k
Ω
, 77°F / 5.4k
Ω
DETECT)
PIPE TEMP. THERMISTOR/LIQUID
(32°F / 15k
Ω
, 77°F / 5.4k
Ω
DETECT)
COND. / EVA. TEMP. THERMISTOR
(32°F / 15k
Ω
, 77°F / 5.4k
Ω
DETECT)
MF
FUSE
MV
DP
CN2L
CONNECTOR (BACK-UP HEATING)
CN24
CONNECTOR (LLC)
CN30
FS
CN32
CN41
CN51
TB4
LED1
TB5,TB6
LED2
TH1
LED3
X1
TH2
SW1
TH5
SW2
SWE
[LEGEND]
1. SymboIs used in wiring diagram above are, : Connector, :Terminal block.
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 wire.
W.B
RU
BZ
LED1
LED2
SW1
SW2
OPTIONAL PARTS
PCB FOR IR WIRELESS REMOTE CONTROLLER
RECEIVING UNIT
BUZZER
LED (OPERATION INDICATION : GREEN)
LED (PREPARATION FOR HEATING : ORANGE)
EMERGENCY OPERATION (HEAT / DOWN)
EMERGENCY OPERATION (COOL / UP)
Notes:
RFI
RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT
CN105
CONNECTOR (RADIO FREQUENCY INTERFACE)
R.B
WIRED REMOTE CONTROLLER BOARD
TB6
TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
FLOAT SW
CN4F
(
WHT
)
When attaching
drain pump
(optional parts),
remove the
jumper
connector
CN4F and fit
the drain float
switch (FS).
When attaching
drain pump
(optional parts)
FS
1
4
1
4
1
6
I-SEE
SENSOR
I-SEE
SENSOR MOTOR
CN6Y
(RED)
CN105
(RED)
(RED)
I-SEE
SENSOR
CN4Y
(WHT)
I-SEE SENSOR
(OPTIONAL PARTS)
4
5
MT
M
1
5
5
