Haier 1U18TR4ERA, Service Manual

Page: 16 / 72

Wiring diagrams
14 Domestic air conditioner
Wiring Diagrams
0010527905
AC-N OUT
CN8
CN9 AC-L OUT
CN10
VALVE A
CN18
XQ
CN21
CN3
PE
Y/G
CN1
CN2
AC-N
AC-L
FUSE1
T25A 250VAC
CN23
CN22
MODULE COM
MODULE POWER
CN7
CN10
B
BL
BL
OR
CN2
CN8
CN6
CN1CN5
CN9
CN11
CN3CN4
B
M
R(U)
S(V)
C(W)
B W
R
BL
（
W
）
BR （ B ）
Y/G
1(
N
)2
(L
)3(
C
)
BL （ W ）
BL
U V W P N
AC-L LI
AC-N L0
CN24
N
P
CN26
CN20
BR （ B ）
CAP
M
CAP
CN4
COM
R
GR GR
CN16
HW
TQ CS
Don't touch capacitor, even after plug-off ( danger of electric shock).
The capacitor retains high voltage even after the plug-off. For your
safety, be sure to wait at least 5 minutes. after plug off and use a tester to
confirm the voltage between connector P and N(on module board) is less
than DC 10V before start servicing.
WARNING
CAUTION
B
：
BLACK
BL
：
BLUE
R ： RED
W ： WHITE
Y/G
：
YELLOW/GREEN
OR ： ORANGE
BR ： BROWN
：
Remark the dotted parts are optional.
COMPRESSOR
MODULE PCB
OUTDOOR PCB
REACTOR
OUTDOOR WIRING DIAGRAM
D
C
F
A
N
M
O
TO
R
E
LE
C
TR
IC
EXP
A
N
S
IO
N
VA
LV
E
4-WAY VALVE
A
MB
IE
N
T
TE
MP
.S
E
N
S
O
R
D
EF
R
O
S
T
TE
M
P.S
E
N
S
O
R
C
O
M
P
R
ES
S
O
R
D
IS
CH
A
R
G
E
TE
M
P.S
E
N
S
O
R
S
U
C
TI
O
N
T
E
M
P.S
E
N
S
O
R
TO
IN
D
O
OR
U
NI
T
M
GR ： GRAY