8
MA
w
1
w
2
w
3
w
4
w
5
OC246-18
WIRING DIAGRAM
7
MODELS: PL12/18/24/30/36/42AK WIRING DIAGRAM
GROUND
POWER SUPPLY
~(1PHASE)
AC115V 60Hz
TB2
N
L1
GR
OFF
ON
OFF
ON
1234
12345678910
12345
123
OFF
ON
123456 1234
OFF
123456
ON
ON
OFF
12
24AK
18AK
12AK
30AK
42AK
OFF
ON
3
2
1
OFF
ON
3
2
1
OFF
ON
3
2
1
SW7
36AK
MODELS
DRAIN
CN31
(WHT)
PIPE
CN21
(WHT)
GRILLE
BLU
REMOCON
CN22
(BLU)
WIRELESS
CN90
(WHT)
VANE
CN6V
(WHT)
POWER
CND
(RED)
POWER
CNDK
(WHT)
INTAKE
CN20
(RED)
D.HEATER
CNC (ORN)
D.U.M
CNP
(BLU)
FAN
(WHT)
BLK
WHT
RED
RED
BLK
RED
WHT
CNB
W.B
LED1
LED2
BZ
RU
SW1 SW2
X4
X4
5
5
5
5
5
9
X1
X1
MV
MV MV MV
5
3
1
1 2 3
1 3
3
1
2
1
2
1
DP
3
FC
5
3
1
1
C
MF
I.B
3
2
1
2
1
1
2
3
CNSK(RED)
(DC13.1V)
CN2S (WHT)
TRANS
P.B
BLU
RED
BLU
RED
GRN/YLW
2
CN2D
(WHT)
1
BLK
WHT
1
2
3 2 1
2 1
3
4
5
1
TB5
2
TRANSMISSION WIRES DC12V
CN30
OUT
DOOR
2
1
BLU
ZNR
TB4
1
2
TB3
TRANSMISSION
WIRES DC12V
OUTDOOR UNIT
R.B
SW18
OFF
ON
OFF
ON
TB6
A01
B02
CN1
CN2
SW17
87654321
87654321
1
2
3
LOSSNAY
CN2L
LED2
LED1
REMOCON
POWER
CN40
3
2
1
4
(WHT)
CENTRALLY
CONTROL
CN51
SW9
SW3
SW7
SW8 SW1
SW6
SW5
SW2
ORN
YLW
F1
F2
DS
RT1
RT2
OFF
ON
3
2
1
OFF
ON
3
2
1
OFF
ON
3
2
1
SW7
MODELS
RED
RED
ORN
ORN
ORN
ORN
H2
F3
3
2
1
(BLU)
10
5
9
8
4
7
6
3
2
1
(AC115V)
NOTE If the drain water lift-up mechanism is identified to be defective with the
microcomputer doctor during cooling,do not use emergency operation
(It causes drain overflow).
CN1
CONNECTOR(PROGRAM TIMER)
SW18 SWITCH(FUNCTION SELECTOR)
SW17 SWITCH(ADDRESS SELECTOR)
SWITCH(OPTION)
SW8
SWITCH(TWIN/TRIPLE SELECTOR)
SW7
SWITCH(MODEL SELECTOR)
SW5
SWITCH(EMERGENCY OPERATION)
SW3
CONNECTOR(CENTRALLY CONTROL)
CN51
CONNECTOR(REMOTE SWITCH)
REMOTE CONTROLLER BOARD
R.B
P.B
PIPE TEMPERATURE THERMISTOR/LIQUID
RT2
RT1
ROOM TEMPERATURE THERMISTOR
TERMINAL BLOCK
TB2~TB6
DRAIN SENSOR
DS
FAN PHASE CONTROL
SWITCH(MODEL SELECTOR)
SWITCH(ADDRESS SELECTOR)
SWITCH(FUNCTION SELECTOR)
CONNECTOR(LOSSNAY)
FC
SW6
SW2
SW1
CN2L
INDOOR CONTROLLER BOARD
INDOOR POWER BOARD
I.B
NAME
NAME
SYMBOL
SYMBOL
H2
CN2
DEW PREVENTION HEATER
W.B
WIRELESS REMOTE CONTROLLER BOARD
RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
BZ
LED1
RU
SW2
SWITCH(COOLING ON/OFF)
ZNR
VARISTOR
F1,F2
SWITCH(MODEL SELECTOR)
SW9
VANE MOTOR
MV
LED(DC12V POWER)
LED2
LED1
DRAIN-UP MACHINE
DP
FAN MOTOR
MF
CAPACITOR(FAN MOTOR)
C
RELAY(FAN MOTOR)
RELAY(DRAIN PUMP)
X4
X1
LED(DC5V POWER)
LEGEND
F3
FUSE(0.3A/250V)
FUSE(6A/250V)
(32
-
F/15k
'
,77
-
F/5.4k
'
DETECT)
(32
-
F/15k
'
,77
-
F/5.4k
'
DETECT)
NAME
SYMBOL
NOTES:
:Connector, :Terminal block.
4.Emergency operation
If remote controller or microcomputer fails but there is no other trouble,emergency operation is
possible by setting dip switch(SW3<I.B>) on the indoor controller board.
3.Symbols used in wiring diagram above are,
2.Indoor and outdoor connecting wires are made with polarities, make wiring matching
terminal numbers.
1.Since the outdoor side electric wiring may change be sure to check the outdoor unit
electric wiring for servicing.
1
2
[Emergency operation procedure]
(1)Set the dip switch(SW3<I.B>)on the indoor controller board to on and off for cooling.
(2)Turn on are outdoor unit side circuit breaker,then indoor unit side circuit breaker.
(3)During emergency operation indoor fan runs at high speed but auto-vane does not work.
(4)Thermostat will not function.
(5)Emergency cooling should be limited to 10 hours maximum
(the indoor unit heat exchanger may freeze).
(6)After every emergency operation,set all dip switches(SW3<I.B>) to OFF.
(7)Movement of the vanes does not work in emergency operation,therefore
you have to slowly set them manually to the appropriate position.
[Check items]
(1)Make sure that no other trouble exist the outdoor unit.Trouble with the outdoor unit
prevents emergency operation.
(If any trouble exists the outdoor unit error code"P8"will be displayed on the remote
controller and the trouble position will be shown on the outdoor controller board LED.
See electric wiring diagram of the outdoor unit for details.)
(2)Make sure that there is no trouble with the indoor fan.
Emergency operation will be continuous run with the power ON/OFF(ON/OFF with the remote
controller is not possible).
