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6
WIRING DIAGRAM
TO NEXT
INDOOR
*2
UNIT
TB2
L1
PULL
BOX
L2
FUSE(15A)
*3
POWER SUPPLY
208/230V AC 60Hz
W.B
6
LED2
CN301
REC1
9
LED1
SWE2
SWE1
S.B
3
3
CN303
1
[LEGEND]
SYMBOL
NAME
I.B
INDOOR CONTROLLER BOARD
CN24
CONNECTOR
EXTERNAL HEATER
CN32
REMOTE SWITCH
CN51
CENTRALLY CONTROL
CN52
REMOTE INDICATION
CN105
IT TERMINAL
BZ1
BUZZER
F1
FUSE (T3.15AL250V)
LED1
POWER SUPPLY (I.B)
LED2
POWER SUPPLY (MA-REMOTE CONTROLLER)
SW2
SWITCH
CAPACITY CODE
SW3
MODE SELECTION
SW22
PAIR NO. SETTING
SWE
FAN•DRAIN PUMP (TEST MODE)
MF
FAN MOTOR
MV
VANE MOTOR
TB2
POWER SUPPLY
TERMINAL
TB5
BLOCK
TRANSMISSION
TB15
MA-REMOTE CONTROLLER
LED on indoor controller board for service
Symbol
Meaning
Main power supply (Indoor unit:208/230V)
LED1
Main power supply
Power on
Power supply for
Power supply for MA-Remote controller
LED2
MA-Remote controller
on
TCH121
TB15
TO MA-REMOTE
1
CONTROLLER
2
DC8.7-13V
D.P
DP
MS
3~
MF
3
MS
3
3~
3
1
3
5
CNP
CND
3
CNSA
10
F1
1
6
CNSB
1
4
7
1
3
CNMF
SYMBOL
NAME
TH21
THERMISTOR ROOM TEMP. DETECTION
(32°F/15kΩ, 77°F/5.4kΩ)
TH22
PIPE TEMP. DETECTION / INLET
WATER (32°F/15kΩ, 77°F/5.4kΩ)
TH23
PIPE TEMP. DETECTION / OUTLET
WATER (32°F/15kΩ, 77°F/5.4kΩ)
A.B
ADDRESS BOARD
SW1
SWITCH
MODE SELECTION
SW11
ADDRESS SETTING 1s DIGIT
SW12
ADDRESS SETTING 10s DIGIT
SW14
BRANCH No.
S.B
SWITCH BOARD
SWE1 EMERGENCY OPERATION(HEAT)
SWE2 EMERGENCY OPERATION(COOL)
W.B
PCB FOR WIRELESS REMOTE CONTROLLER
LED1
LED(OPERATION INDICATOR:GREEN)
LED2
LED(PREPARATION FOR HEATING : ORANGE)
REC1 RECEIVING UNIT
D.P
DRAIN PUMP KIT (OPTION)
FS
DRAIN FLOAT SWITCH
DP
DRAIN PUMP
Function
lamp is lit
lamp is lit
D.P
When attaching drain pump
(option)
When attaching drain
FS
pump(option), remove
FLOAT SW
the jumper connector
CN4F
CN4F and fit the drain
float switch (FS).
TH21
TH22 TH23
1
t°
t°
t°
CN2A
4
1
2 1
CNRU
CN41
5
1
LED2
1
4
CN51
SWE
CN4F
BZ1
OFF ON
3
1
1
2 1
4
1
CN32
CN20 CN44
CN24
CNV
1
654321
OFF
SW2
ON
2
4321
0987 654321
OFF
OFF
SW22
SW3
ON
ON
12
See Fig. *1
<Fig.*1>
The black square(■) indicates a
switch position.
Models
WL18
WL24
WL30
NOTES:
1.At servicing for outdoor unit,always follow the wiring diagram
of outdoor unit.
2.In case of using MA-Remote controller, please connect to TB15.
(Remote controller wire is non-polar.)
3.In case of using M-NET, please connect to TB5.
(Transmission line is non-polar.)
4.Symbol [S]of TB5 is the shield wire connection.
5.Symbols used in wiring diagram above are,
block,
6.The setting of the SW2 dip switches differs in the capacity.
For the detail, refer to the Fig.*1.
9
1
4
TB5
M1
M2
S
(SHIELD)
I.B
2
1
1
CN2M
8
CN8A
1
1
5
1
CN52
CN105
1
5
2
15
1
A.B
SW12
16
2
5
11
10s DIGIT
LED1
M
CNAD
SW11
MV
12
1s DIGIT
SW14
BRANCH No.
4
8
1
SW2
OFF
ON
6 5432 1
OFF
ON
6 5432 1
OFF
ON
6 5432 1
,
:connector.
TO OUTDOOR UNIT
HBC/ HYDRO UNIT
ME REMOTE
CONTROLLER
DC24-30V
SW1
1
2
3
4
5
6
7
8
9
10
OFF ON
1
23
SWA
1
4
CN43
CN82
8
: terminal
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