Haier AU082FYCRA(HW) Service Manual page 17

AU112/162FYCRA(HW)
【
Electrical wiring diagram
6.3A 250VAC
FUSE1
CN27
W
CN18
SV2
R
CN16
4WV
BL
CN17
SV1
Y
CN25 Water
board
G
HEATER
Main board
CN10
W
CN21
R
R
W
CN8
CN7 CN3 CN6 CN4
TA
【WARNING】
Before checking the inside of the control box,
please turn off the power supply and keep the
unit closed for more than 10 minutes to ensure
that the voltage between P and N on the
converter board has been reduced to
less than DC 20V.
【NOTES】
·Forbid connecting the power wire to the "P,Q,A,B" ,
otherwise the control board will be damaged.
·Please check the power firstly before test , and make
sure the crankcase heater power on for 12 hours
at least to protect compressor.
·Please connect the wire controller to the docking terminal,
and then fix the back side of the docking terminal with a
wire clamp to prevent pulling.
】
M
CN13 DCFAN1
W
CN12 DCFAN2
R
M
W CN51
G CN46
O N BM2
1 2 3 4 5 6 7 8
BL CN53 Y CN58 BL CN57 B CN56
L
N
R B B W W BL
CN23 CN5 CN29 CN28
Ps
TD TS TE1
Y/G
1(L) 2(N) 3 4
Inside pump
External pump relay
CN1
W
DCPL1
DCPL2
Inverter module
W
B
COMP
W
Docking U
connector
R
SMG2
W
Wire
CN1
controller
Display board
SW1
W CN11
W CN2_1
SW4 SW5 SW6 SW7
UP DOWN EXIT ENTER
R
P Q A B
R
L N
Pd
Centralized
OUT I/O
controller
Power supply
【 BM Indication 】
[1] [2] [3] [4] [5] [6] [7] [8]
BM
0 0 1 0 0 0 1 0
BM1
0 0 1 0 1 0 1 0
0 1 0 0 0 0 0 0
BM2
0 1 0 0 0 0 0 0
Symbol Signification Symbol
ACL
Live Wire
HPS
ACN
LPS
Neutral Wire
HEATER
TD
Heater
SV1
unloading valve TE(1)
SV2
spray valve
Tfin
4WV
4 way valve TS
AB Monitor
DCFAN1
up fan EEV
DCFAN2 LD1-3
down fan
LED1-4 SW01,02
lights
15
0150531728
PE
ACL-OUT
AC-N
AC-L
ACN-OUT
CN11
B
CN1
W
V
G
CN8
Tfin
SMG1
SW2 SW3
Y/G
BL
Colours:
B : Black
BL: Blue
Y : Yellow
G : Green
R : Red
W: White
Model
Remarks
112 0 means
OFF,
162
1 means
112 ON
162
Signification
high pressure switch
low pressure switch
compressor discharge sensor
defrost temp sensor
IPM temperature sensor
compressor suction sensor
TA ambient temp sensor
electronic expansion valve
digital display tubes
thumbwheels