2 - 319
R2 (HIGH
COP
)
4. ELECTRICAL WIRING DIAGRAMS
YKB/YLM 2nd
MEE15K022
FT2-N
F101
DC400V
10A
T
FT2-P
C102
R104~R106
R101~R103
C101
+
+
R301~R304
Resistor
For inrush current prevention
RSH01,RSH02
For current detection
Indoor/Outdoor transmission cable
Linear
expansion
Central control transmission cable
Subcooled liquid refrigerant
temperature
Pipe temperature
Outdoor unit heat exchanger
capacity control
SV5b
L
Choke coil (for high frequency noise reduction)
SV1a
21S4a
Symbol
<Symbol explanation>
63H163HS1
63LS
21S4b
CT
-1,CT
-2
LEV5a
DCL
Solenoid
valve
For opening/closing the bypass
circuit under the O/S
Heat exchanger capacity control
4-way valve
Explanation
Pressure
sensor
Cooling/Heating switching
Pressure
switch
High pressure protection for the
outdoor unit
Discharge pressure
Low pressure
Magnetic
Current
DC reactor
Z25
THHS
TH7
TH6
TH5
TH4
TH3
TB7
TB3
TB1
SV7,SV9
Thermistor
Discharge pipe temperature
ACC inlet pipe temperature
OA
temperature
IPM temperature
Function setting connector
Power supply
T
erminal
block
For opening/closing the bypass circuit
F121
DC700V
4A
T
C151,C152
RSH01,
F121
DC700V
4A
T
C151,C152
RSH01,
F
AN Board
CONNECT
Board
5
4
3
2
1
1
1
2
3
CN2A
1
2
3
CN2
M2
CPU power
supply circuit
M1
CN332
blue
1
2
12
X05
X06
3
5
1
6
CN505
1
3
W
V
U
Fan motor
(Heat exchanger)
CN4
black
M1
LED1:Normal operation(Lit)
/ Error(Blink)
LED4:CPU in operation
3
IPM
CNVDC
1
CN81
CN80
SW001
4
2
2
3
1
2
3
4
5
6
2
1
1
6
OFF
ON
4
1
4
1
7
CNINV
1
4
red
CNPS
1
3
2
1
TP1
TP2
TB3
2
3
CN201
CN4A
black
TB7
S
CNAC
5
12
34
CN81
5
4
3
1
LEV5b
M
1
2
3
4
6
1
2
3
4
1
2
6
CN202
3
3
1
3
4
CN103
Fan motor
(Heat exchanger)
U
V
W
CNINV
7
1
4
SW001
1
4
1
2
5
1
1
3
4
12
1
3
3
1
4
3
2
2
3
1
1
CNSNR
M2
TH4
4
4
1
1
CN21
1
green
2
3
123
321
SV1a
CN83
21S4a
CN104
4
4
1
1
3
2
2
3
MS
3~
2
1
2
3
1
1
21
MS
3~
3
2
CN82
yellow
CNPOW
654
X10
ON
X08
X07
X1
1
Unit address
setting
6
3
5
5
1
1
6
6
12
3
4
3
green
CN62
SET
UP(SW6-10)
LED1
Display
setting/
Function
setting
CN51
DC12V
Function
setting
CN990
green
CN213
green
CNTYP4
*3
Compressor ON/OFF output
Error detection output
CN201
Z25
TH5
TH6
SWU2
LED1
SW6
10
Control Board
TH3
CN40
63HS1
CN41
TH7
1
5
5
4
3
1
SW4
LED3
2
LEV5a
3
V
M
OFF
CN506
red
CN508
blue
CNTYP2
black
yellow
CN3K
*3
TB21
SV5b
SV4c
U
blue
CN3N
3
21S4b
TB7 Power
selecting
connector
CNVDC
IPM
1
L3
N
2
6
ON
OFF
M-NET
power
supply circuit
1
2
M-NET
Board
Power failure
detection circuit
Indoor/Outdoor
transmission
cable
TB23
TB24
L2
L1
ON
1'sdigit
CN102
1
4
1
1
W
10's
digit
OFF
LED2:Normal operation(Lit)
/ Error(Blink)
CNS2
yellow
CNDC
red
MS
3~
2
2
U
LED1:Power supply to
Indoor/Outdoor
transmission line
ZNR400
6
Central control
transmission
cable
ON
OFF
Motor
(Compressor)
red
CN3S
CN04
red
CN61
green
CN202
red
6
1
2
*4
4
1
SW5
10
5
CN3D
1
black
CNAC2
1
ON
OFF
10
SWU1
CN212
red
3
6
CN80
4
CNTYP5
green
LED4:CPU in operation
LED1:Normal operation(Lit)
/ Error(Blink)
5
CNSNR
TB22
SWP1
F
AN Board
63LS
2
CN507
black
3
3
6
4
SV9
Noise filter
red
1
2
1
C
N
LVA
CNL
VB
red
1
F01
AC250V
3.15A
T
white
black
1
CNIT
red
*1.Single-dotted lines indicate wiring not supplied
with the unit.
*2.Dot-dash lines indicate the control box boundaries.
*3.Refer to the Data book for connecting input/output
signal connectors.
*4.Daisy-chain terminals (TB3) on the outdoor units in
the same refrigerant system together
.
*5.Faston terminals have a locking function.
Make sure the terminals are securely locked in place
after insertion. Press the tab on the terminals to
removed them.
*6.Control box houses high-voltage parts. Before
inspecting the inside of the control box,turn of
f
the power
, keep the unit of
f for at least
10 minutes, and confirm that the voltage between
SC-P
and SC-N on Capacitor Board has dropped to
1
3
CNCT4A
CNR
Y
1
2
CN1
1
4
SC-P
FT
-001
SC-N
R029,
R030
R031,
R032
RY
3
RY
4
ZNR001
U
C001,
C002
CT
-3
P
N
FT
-R21
SC-L
SC-L1
SC-L2
SC-L3
SC-B
1
2
3
1
5
1
3
4
2
3
1
1
3
2
CN2
CN43
CNCT4B
CNTYP
CN10
DCL
1
CNTH
2
t°
t°
CT
-1
CT
-2
INV Board
LED4:CPU in operation
LED1:Normal operation(Lit)
/ Error(Blink)
1
4
CN104
3
1
CN107
+
R204
C202
D103
R203
3
1
CN103
DB
ZNR
U
001
-
+
1
7
4
CN101
1
2
SC-P
FT001
R103,
R104
SC-N
+
C101~C108
4
1
CN106
R101,
R102
R301~
R304FT002
P
N
Board
5
SV7
X09
3
1
CN504
SV1
1
3
1
CN503
SV10
yellow
green
3
1
CN501
CH1
1
blue
CN1
10
1
2
CNR
YB
1
2
CNTYP1
black
TH9
1
2
TH1
1
2
TH12
L3
N
L1
L2
Power Source
3N~
50/60Hz
380/400/415V
TB1
L1
L2
L3
N
F1AC250V
6.3A
T
F2AC250V
6.3A
T
F3AC250V
6.3A
T
1
5
3
CN4
3
1
CN3
Surge
absorber
6
1
3
CN2
5
Noise
filter
Noise filter
3
4
1
1
CN1B
CN1A
L
CN102
2
SC-U
SC-V
SC-W
RY
1
R205
RSH02
green
black
green
blue
RSH02
green
black
blue
green
blue
THL
red
green
blue
black
black
black
red
black
black
12
P
63H1
CN801
red
Power failure
detection circuit
C101~C108
C001,C002
Capacitor
Inverter main circuit
Filter circuit
LED5:
Relay power supply
R
Y3,4
THHS
IPM gate drive
circuit
SW001
ONOFF
F1AC250V
3.15A
T
X04
X03
X01
RY
1
relay
Filter circuit
CT
-3
sensor
ACDC
CH1
1
Crankcase heater (for heating the compresor)
valve
LEV5b
HIC bypass,Controls refrigerant
flow in HIC circuit
Pressure control, Refrigerant flow
rate control
SV10,SV1
1
For opening/closing the defrost circuit
TH9,TH1
1,TH12
Heat exchanger outlet pipe temperature
R001
X12
SV4d
3
X13
5
1
6
CN509
yellow
SV4a
X14
SV4b
3
SV4a,b,c,d
Heat exchanger capacity control
C020~C023
red
black
Capacitor
red
white
black
blue
red
white
black
red
white
white
red
red
whiteblack
red
white
black
red
red
white
white
DC20V or less.
THL
DC reactor temperature
R
Y3,R
Y4
Inverter main circuit
t°
t°
t°
t°
t°
t°
t°
t°
PURY-EP500YLM-A1 (-BS)
