2 - 241
R2
MEE15K022
4. ELECTRICAL WIRING DIAGRAMS
YKB/YLM 2nd
4. ELECTRICAL WIRING DIAGRAMS
Linear expansion valve (for the control of
evaporating temperature)
RSH01/02,RSH1
For current detection
C30~C37
Capacitor (inverter main circuit)
L
Choke coil (for high frequency noise reduction)
SV4a,b,d
Heat exchanger capacity control
R1,5
Resistor
For inrush current prevention
Subcooled liquid refrigerant
temperature
Pipe temperature
Outdoor unit heat exchanger
capacity control
SV5b
SV1a
21S4a
Symbol
<Symbol explanation>
63H163HS1
63LS
72C
CT12,CT22,CT3
LEV5a
DCL
Solenoid
valve
For opening/closing the bypass
circuit under the O/S
4-way valve(Cooling/Heating switching)
Explanation
Pressure
sensor
Pressure
switch
High pressure protection for the
outdoor unit
Discharge pressure
Low pressure
Magnetic relay(inverter main circuit)
Current sensor(AC)
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
Indoor/Outdoor transmission
cable
Central control transmission
cable
T
erminal
block
For opening/closing the bypass
circuit
*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 FT
-P
and FT
-N on
INV Board has dropped to DC20V or less.
SV10,SV1
1
For opening/closing the defrost
circuit
TH9,TH1
1
Heat exchanger outlet pipe temperature
*7.Dif
ference of appliance.
P200/250/300/350/400
Model name
*7 do not exist
appliance
EP200/250/300/350
*7 exist
F121
DC700V
4A
T
C151,C152
RSH01/02
12
L3
N
red
CNPS
1
3
2
1
TP1
TP2
TB3
2
3
TB7
M1
M2
M1
M2
S
1
5
12
34
1
2
1
2
1
32
3
4
6
3
6
1
5
3
1
2
2
CN82
blue
1
3
4
CN83
black
L1
L2
3
1
Fan motor
(Heat exchanger)
U
V
W
CNINV
7
1
4
3
4
CN4
black
1
1
3
2
3
1
3
SW001
1
4
CN2
1
12
1
3
3
1
4
3
2
2
3
1
1
CNSNR
TH4
4
1
1
1
CN21
1
green
2
3
123
321
U
5
2
5
4
3
2
1
1
3
2
1
2
3
1
2
3
1
CN6
21
2
yellow
CNPOW
1
654
X10
X12
ON
X08
Unit address
setting
CT12
CN5
red
D1
R4
-
Z5
1
+
3
1
6
white
12
3
4
3
green
CN62
CN990
green
CN213
green
CNTYP4
F4AC250V
6.3A
T
R5
CN201
Z25
TH5
TH6
SWU2
LED1
SW6
10
Control Board
TH3
CN40
63HS1
CN41
TH7
1
5
2
3
4
1
SW4
LED3
5
LEV5a
3
3
SET
UP(SW6-10)
SC-V
CT22
SC-U
V
CN4
blue
red
M
OFF
t
black
CN506
red
CNTYP2
black
6
yellow
CN3K
*3
Compressor ON/OFF output
Error detection output
TB21
DC12V
CN51
SV5b
CN1A
U
CN2
blue
CN3N
1
3
+
3
4
TB1
CN1B
TB7 Power
selecting
connector
CNVDC
1
IPM
2
5
6
L3
N
DCL
black
72C
white
red
2
6
ON
OFF
M-NET
power
supply circuit
1
2
M-NET
Board
Indoor/Outdoor
transmission
cable
INV Board
red
TB23
TB24
L2
L1
+
ON
1's
digit
THHS
CN102
C31,C33,
C35,C37
1
4
1
1
W
10's
digit
OFF
LED2:Normal operation(Lit)
/ Error(Blink)
CNS2
yellow
CNDC
red
red
MS
3~
2
2
C100
*5
LED1:Power supply to
Indoor/Outdoor
transmission line
+
black
Central control
transmission
cable
*6
SC-L1
ON
OFF
FT
-N
R30,R32,
R34
Motor
(Compressor)
red
CN3S
1
CN04
red
CN43
yellow
1
SC-P2
P
CN61
green
CN202
red
C30,C32,
C34,C36
6
N
CN1
LED1:Normal operation(Lit)
/ Error(Blink)
*4
SC-W
SC-L3
2
CNR
YB
P
63H1
4
1
SW5
10
5
CN3D
1
CPU power
supply circuit
black
CNAC2
1
*3
ON
OFF
10
SWU1
white
CN212
red
SC-L2
6
2
CN80
CNTYP5
green
LED4:CPU in operation
LED1:Normal operation(Lit)
/ Error(Blink)
CN801
red
5
˚
IPM
4
SC-P1
FT
-P
black
red
DB1
CT3
C1
CNTYP
black
black
TB22
SWP1
RSH1
R6
C1
1
F
AN Board
63LS
ZNR1
U
L
Noise
Filter
2
CN507
black
CN508
blue
3
3
3
6
6
4
CN3
green
SV9
Function
setting
LED1
Display
setting/
Function
setting
72C
Noise filter
Noise filter
6
7
red
Surge
absorber
1
2
1
1
C
N
LVA
1
F01
AC250V
3.15A
T
MS
3~
white
black
1
CNIT
red
L1
L2
L3
N
R31,R33,
R35
3
4
1
R1,R5
X05
X13
X06
X14
3
3
5
5
1
1
6
6
CN505
CN509
yellow
1
3
CNAC
CN81
green
1
2
5
3
4
4
4
CN2
SV1a
SV4b
SV4d
SV4a
21S4a
Power Source
3N~
50/60Hz
380/400/415V
t˚
t˚
t˚
t˚
t˚
t˚
t˚
TH1
1
CNTYP1
black
1
2
TH9
5
X09
SV7
*7
3
1
CN504
SV1
1
3
1
CN503
SV10
X03
yellow
green
X04
CN1
10
black
1
2
Power failure
detection circuit
U
ZNR400
1
PURY-P200, 250, 300, 350, 400YLM-A1(-BS)
