Haier HBU-18HF03 Manual page 208

HDU-28HF03
HDU- 42HF 03 /H
CIRCUIT DIAGRAM OF INDOOR UNIT
WIRED
CONTROLLER
CN3
FAN MOTOR
T3.15A/250VAC
M
CAPACITOR
CN8
Y/G
TRANSFORMER
B:BLACK GR:GRAY
BR:BROWN R:RED
W:WHITE
Y/G:YELLOW/GREEN
TEMP.:TEMPERATURE
1、 FOR SOME TYPES, THERE ARE NO PARTS IN DASHED FRAMES
2、
PLEASE DO NOT CHANGE THE DIP SWITCH BM ON THE PCB BOARD。
3、 PARTS ARE NEEDED TO BE CONNECTED WITH OUTDOOR UNIT
2 3
4、 DASHED PART 1 IS OPTIONAL.
5、 THE L N ON TERMINAL BLOCK IS EQUAL TO 1 2.
WIRING DIAGRAM OF INDOOR UNIT
WIRED
CONTROLLER
1 2 3 4
B
R
BL
CN8
W
CN3
8 7 8 7 8 7
R
BL B
4
4 4
TRANSFORMER
RELAY
FAN SPEED
CONTROLLER
B
BL R
FC
M
FAN MOTOR
W
Y/G
CAPACITOR
NOTES：1、PART IN DASHED FRAME
R:RED
W:WHITE
2、PARTS IN DASHED FRAME
B:BLACK BR:BROWN
CONNECTED WITH OUTDOOR UNIT
BL:BLUE
GR:GREY
3、PLEASE DO NOT CHANGE THE DIP SWITCH BM ON
Y/G:YELLOW/GREEN
THE PCB 。
-208-
Wiring diagram and PCB photo
0010576943
FLOAT
SWITCH PIPE TEMP.
SENSOR
CN11 CN1
CN12
DETECTOR
CN2
CN17
2
OUTDOOR LOW PRESSURE
BM
SWITCH CONTROL
FUSE
CN18
OUTDOOR DEFROST TEMP.
CN9 CN14 CN15
CN7 SENSOR CONTROL
L N
CN10
B R BR GR
W
L N 3 4 5
TO OUTDOOR UNIT
.
2 3
0010576946
PIPE
FLOAT TEMPERATURE
SENSOR
1
DETECTOR
OUTDOOR PRESSURE
CN12 CN2
CN11 CN1
SWITCH CONTROL
CN17
BM
T3.15A/250VAC
CN18
FUSE
OUTDOOR DEFROST
CN14 CN15 CN7 CN10
SENSOR CONTROL
L N
CN9
Y/G
B R BR GR
W Y/G
ＴＥＲＭＩＮＡＬ
1 2 3 4 5
ＢＬＯＣＫ
TO OUTDOOR UNIT
1 IS OPTIONAL.
ARE NEEDED TO BE
2
1
3
Y/G
2