18
Technical Information
Service Manual
5. Electrical Part
5.1 Wiring Diagram
●Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green COMP Compressor
YE Yellow BN Brown Grounding wire
RD Red BU Blue / /
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
● Outdoor Unit
MULTI18HP230V1EO
TUBE-A
RT4
QA
WH
BK
TEMP.SENSOR
LIQUID PIPE
GAS PIPE
TEMP.SENSOR
RT5
YA
RD
RT6
QB
BK
BK
RT7
YB
RD
TUBE-B
TEMP.SENSOR
LIQUID PIPE
GAS PIPE
TEMP.SENSOR
BN
OUTTUBE OUTTUBE EXHAUST
SENSOR
TEMP. TEMP. TEMP.
RT1 RT2 RT3
T-SENSOR
COMP.
COMP.
AP1:PRINTED CIRCUIT BOARD
AC-L
L1
BU
BU
BU
RD
RD
YE
YE
SENSOR SENSOR
L1 L1
W
U
V
θ
N(AC-N)
COM-INNER
20K 15K 50K
YEGN
L1(1)
XT1
WH(BU)
BK
RD(BN)
GN(YEGN)
L2
BK(BN)
L1
WH(BU)
GN(YEGN)
X1
θ
θ
FA
EKV
FB
EKV
EXPANSION
ELECTRONIC
VALVE A
G
POWER
2
L2(3)
N(1)
2
3
EXPANSION
ELECTRONIC
VALVE B
GY
XT2
INDOOR UNIT AINDOOR UNIT B
WH(BU)
BK
RD(BN)
GN(YEGN)
TERMINAL
BLOCK
BU
BN
MAGNETIC
RING
BK
FAN
M
MOTOR
θ
θ
θ
θ
4-WAY
VALVE
4YV
4WAY
VT
VT
OFAN
E
G
CN2
WH
BK
L2
L2
L2
L2
L3
L3
L3
L3
MAGNETIC
RING
SAT
OVC-COMP
PROTECTOR
OVERLOAD
WH WH
G
WARNING
OPTIONAL
OPTIONAL
Please don't touch any electronic
component or terminal when the
machine is running , stopping or
has been powered off for less than
30 minutes to prevent the risk of
electric shock !
EH
RD
HEATER
BAND
HEAT-B
RD
OPTIONAL
BOTTOM
G
600007066178