Haier 1U25YEEFRA - Page 56

Circuit diagrams
62
Domestic air conditioner
13 Wiring Diagrams
Outdoor unit control board circuit diagrams
3
FUSE1 T20A 250VAC
ST
COM
+12V
+5V
4_46_eeprom_SDA 4_47_eeprom_SCL
eeprom_SCL eeprom_SDA
+5V
TEMP_pipe
TEMP_exhaust TEMP_ambient
+5V
L1
CMF-012C36HR (36mH-12A)
SA1 RA-362M-V7
AC-N-OUT
AC-L-OUT
12V
PTC1 PTC-PSB470
R26 1K R27 1K R28 1K
R25 47K±1%
R49 10K
R50 10K
R43 560
RV3TVR14621KB251Y
RV2
TVR14621KB251Y
RV1
TVR14621KB251Y
R3
1MΩ-±5%-1/4W
R4
1MΩ-±5%-1/4W
CX1
1uF/275V
CX2 1uF/275V
CX3
10nF/275VAC
R2 100Ω/1W
R32 20KΩ±1% R37 20KΩ±1%
C7
100nF-50V
C8
100nF-50V
C9
100nF-50V
C16
100nF-50V
D2
MMSD4148T1G
D3 MMSD4148T1G
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
IC6 M24C08
3 4 1 2
K1
HF161F
1
2
CN10
B2P3-VH-W-
1 2 3 4 5 6
CN20
6-1971798-1
1 2 3 4
CN8 B4B-XH-A(
EE
4.7nF/250V
CY1
4.7nF/250V CY2
+12V
310V
0V
15V
ZD401 1N5240B/1N4740A (10V/1/2W/1W) ZD402
1N5231B(5.1V-1/2W)
E401
47uF-25V-105
℃
+5V
PC817X3NIP0F/LTV-817AX
IC401
PC817X3NIP0F/LTV-817AX
IC402
330-0805R410
1K-0805
R408
330Ω-1W
R409
2.2K-0805
R407
10nF-0805 C401
1 2 3 4 5 6
CN21
+15V
10nF/630V
C402
+5V
4_61_FB 4_64_VSP
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
E
8
COM
9
7C
10
6C
11
5C
12
4C
13
3C
14
2C
15
1C
16
ULN2003APG IC5 ULN2003APG
12V
C12
100nF-50V
2SD1781K N5
10K R5
4.7K R1
4K7
10K
DTC143X N6
4K7
10K
DTC143X
N401
330-0805 R402
1nF C403
10K R403
1K R404
1K-0805R405 1K-0805R406
PVCC
4_27_STEPA
4_28_STEPB 4_29_STEPC
4_30_STEPD
4_53_TEMP_exhaust
4_52_TEMP_pipe
4_51_TEMP_ambient
4_18_4-way_valve
4_19_PTC_Relay
1 2 3 45
6 7 8
R101 1K*4
E402
100uF-25V-105
℃
R83 560
R45 1K R47 1K
R48 1K
R46 10K
C14 100nF-50V
C15 1nF-50V
C58
1nF-50V
+5V TXD-PC
4_26_short_time_i
4_24_TXD_PC
TXD_PC
short_time_i TEST/SS
RXD_PC
RXD-PC
4_25_RXD_PC
1 2 3 4 5
CN9
B5B-XH-W-
R33
20KΩ±1%
2SD1781K N201
10K R202
4.7K R201
4_43_HEAT
3 4 1 2
K2
G5NB-1A-E
D201 MMSD4148T1G
3 4 1 2
K3 G5NB-1A-E
+12V
1
2
CN48
1 2 3 4 5 6
CN16 6-1971798-3(
FUSE2
T3.15A/250VAC-
1 2 3 4
MOLEX:672800401 CN50
1 2
CN48'
B2P3-VH-W-
LED3
220K/2W
R508
3
5 4
1 2
K4
892-1CC-C NC/NO:3/5A-
i_com
i_com
com_on
D202
MMSD4148T1G
+5V
RX_insider
330Ω-0805
R503
2SC2412
N501
10K R504
1K R505
1nF C504
TLP628/PC851/LTV-851
IC501
2K-2W R501
PC817X3NIP0F/LTV-817AX
IC502
2.2nF/250V
CY501
2.2nF/250V
CY502
com_on
4.7K R506
4.7K R507
TX_insider
1 2
CN18
2-1971798-1
1KR30
100nF
C6
4_54_TEMP_suction
4_18_RX_insider
4_19_TX_insider
4_32_COM_enable
R42 20KΩ±1%
2SD1781K N202
10K
R204
4.7K R203
+12V
R84
560-0805
R85
560-0805
ZD5
SM4746A(18V-1W)
ZD6
SM4746A(18V-1W)
S1M/MRA4007
D501
C501
103K/50V/0805
S1M/MRA4007
D14
R502
102J/0805
R512
274J/0805
+5V
R509 103J/0603
R510
103J/0603
2SC2412
N502
R511
472J/0603
+5V
1
CN53
D250-63824
N