5. Wiring Diagrams
YUHA 18 FS
Indoor unit
RT 2
RT 1
XT 2
XS1 ~4
XP1 ~4
CN1 - CN2 4
RT2
RT1
T 4
XT1
CAP 1
F AN 1
L
3
2( N)
1
N
XT 1
KM1
KM1
4
5
XT2
FAN1
DISPLAY
BOARD
CAP1
T4
7- WA Y TE RMI NAL
TRANSF ORME R
ROOM T EMP. SENSO R
PI PE T EMP. SENSO R
CONNECTORS
CONNECTORS
P. C. BOARD SOCKET S
MAIN CONTROL BOARD
Y/ G
CN15
CN10
C N16
CN 1
CN 2
CN3
CN 7
CN 5
CN 8
XP1
XS1
RED
WIRING
DI AGRA M
XS3
XP3
TO OUTDOOR U NIT
TO OUTDOOR UN IT
RE D
Y/G
XS 4
XP 4
RL 6
RE D
RELA Y FOR
COMP RESS OR
POWER
W
H IT E
(WHI T E)
( RED )
B ROWN
BROW N
BL AC K
BLUE
BL
UE
BR
OW
N
GR
EE
N
WHI T E
2- WA Y TE RMI NAL
RED
BL AC K
T3
E
( NOTE:P LEASE USE SHIE LD L I NE)
CODE
PART N AM E
I NDOOR F AN CAP .
I NDOOR F AN
CN20
TO WI RE CONTROLL ER
2 2 08 60 9 488
CN20
NET C ONTROL INTERFA CE
CN20
N ET M O D U LE
TO C CM
Outdoor unit:
RED( C)
TO I NDOOR UNIT
4- WAY VAL VE
TO I NDOOR UNI T
X T1
XT2
T3
E
BR
OW
N
WHI TE
F AN
MOTOR
TEMP. S ENSOR
OF CONDENSATOR
XS1
XP1
WHITE
1
3
4
BL
UE
(S
.V
)
BL
UE
(N
)
BL UE
FAN
CAP AC IT OR
BLACK
Y/G
COMPRES SO R
C
BLUE( R)
Y/G
R
WHI TE( S)
S
COMPRESSOR
C APACI TOR
WI RI NG DI AGRAM
( OUTDOO R UN IT )
GR
EE
N
N
