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4. ELECTRICAL WIRING DIAGRAMS
YKB/YLM 2nd
PK
FY
MEE15K022
PKFY
-P32, 40, 50VHM-E
Models
P32
SW2
123456
ON
OFF
P40
123456
ON
OFF
P50
123456
ON
OFF
SYMBOL
NAME
I.B
INDOOR CONTROLLER BOARD
BZ1
CN32
CN51
CN52
CN100
CONNECTOR
BUZZER
REMOTE SWITCH
A.B
ADDRESS BOARD
S.B
SWITCH BOARD
W.B
PCB FOR WIRELESS REMOTE CONTROLLER
SW1
SWA
SW11
SW12
MODE SELECTION
FAN SPEED SELECTOR
ADDRESS SETTING 1s DIGIT
SWE1
SWE2
EMERGENCY OPERATION (HEAT)
EMERGENCY OPERATION (COOL)
LED (OPERATION INDICATOR: GREEN)
LED (PREPARATION FOR HEATING: ORANGE)
RECEIVING UNIT
ADDRESS SETTING 10ths DIGIT
SW14
BRANCH No.
CENTRALLY CONTROL
REMOTE INDICATION
IT TERMINAL
SWITCH
X1
AUX.RELAY
FUSE
FUSE (T3.15AL 250V)
LED1
POWER SUPPLY (I.B)
LED2
LED1
DP
DRAIN PUMP (OPTION)
DRAIN FLOAT SWITCH (OPTION)
FS
LED2
RU
POWER SUPPLY (I.B)
SYMBOL
NAME
TH21
MF
MV
THERMISTOR
ROOM TEMP. DETECTION
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / LIQUID
(0°C/15kΩ, 25°C/5.4kΩ)
PIPE TEMP. DETECTION / GAS1
(0°C/15kΩ, 25°C/5.4kΩ)
LEV
LINEAR EXPANSION VALVE
TH22
TH23
PIPE TEMP. DETECTION / GAS2
(0°C/15kΩ, 25°C/5.4kΩ)
TH24
FAN MOTOR
VANE MOTOR
DRAIN PUMP (OPTION)
TB2
TB5
TB15
TRANSMISSION
MA-REMOTE CONTROLLER
TERMINAL
BLOCK
POWER SUPPLY
SW2
SW3
SW4
SWE
CAPACITY CODE
MODE SELECTION
MODEL SELECTOR
DRAIN PUMP (TEST MODE)
SWITCH
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, : terminal
block, :connecter.
6. The setting of the SW2 dip switches differs in the capacity.
For the detail, refer to the fig: *1.
Mark
Meaning
Function
Power supply for
MA-Remote controller
Main power supply (Indoor unit:220-240V)
P
o
w
e
r
o
n
→
I
a
m
p
i
s
l
i
t
LED on indoor board for service
LED1
Main power supply
Power supply for MA-Remote controller
o
n
→
I
a
m
p
i
s
l
i
t
LED2
FAN
CNMF
(WHT)
1
6
3
MS
3~
M
1~
M
VANE
CN151
(WHT)
5
1
LEV
CN60
(YLW)
6
6
1
CNRU
(WHT)
LDSWE(A)
(BLU)
6
1
3
3
1
5
1
5
1
5
3
1
5
1
4
1
4
1
2
1
2
1
3
1
4
1
8
1
1
3
5
1
1
3
1
2
12345678
SW3
123456
SW2
ON
OFF
ON
OFF
1234
SW4
2
1
1
1
2
2
3
3
4
5
6
7
8
9
1
0
SW1
SWA
L
N
LED1
X1
LED2
M
FUSE
CNP
(BLU)
CND
(BLK)
RED
BLU
YLW
BLK
WHT
MF
DP
MV
LEV
SWE
OFF
BZ1
ON
BLU
TB2
RED
RED
BLU
BLU
YLW
WHT
ORNORN
ORN
ORN
YLW
BLU
BRN
BRN
RED
GRN/YLW
RED
BLU
BLK
I.B
S.B
W.B
A.B
PULL
BOX
FUSE
(15A)
BREAKER
(15A)
TO NEXT
INDOOR
UNIT
POWER SUPPLY
~/N220-240V 50Hz
220V 60Hz
GRN
CN52
(GRN)
LD SWE(B)
LD101(B)
SWE1
LED1
TH24
TH23
TH22
TH21
LED2
SWE2
CN51
(WHT)
CN24
(YLW)
FLOAT SW
CN4F
(WHT)
FLOAT SW
CN4F
(WHT)
LIQUID/GAS1
CN44
(WHT)
INTAKE
CN20
(RED)
ADDRESS
CN81
(RED)
8
1
CN100
(WHT)
ADDRESS
CN42
(RED)
GAS2
CN2G
(BLK)
ADDRESS
CN43
(RED)
ADDRESS
CN82
(RED)
MA-REMOCON
CN3A
(BLU)
M-NET
CN2M (BLU)
CN32
(WHT)
RU
4
8
t°
t°
t°
t°
See fig: *1
TB5
(SHIELD)
M1
M2
TB15
1
S
2
TO MA-REMOTE
CONTROLLER
DC8.7-13V
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
SW14
SW11
SW12
10ths
DIGIT
1s
DIGIT
BRANCH
No.
FS
1
4
When attaching drain
pump(option), remove
the jumper connector
CN4F and fit the drain
float switch (FS).
When attaching drain pump
(option)
*2
*2
8
5
4
1
CN100 (WHT)
IT terminal
PAC-IT51AD-E
CN51 (WHT)
*2
*2
J41
Pair
No.
J42
5
1
5
1
8
5
4
1
CN100 (WHT)
IT terminal
PAC-IT52AD-E
In connecting optional IT terminal,
use either CN51 or CN52 which is
not connected.
Be careful for connector colors.
CN52 (WHT)
The black square (■)
indicates a switch
position. <*1>
