Haier HCFU-18CF03 Service Manual page 71

HCFU-28CF03 HCFU-28HF03
WIRED
P4
CONTROLLER
P2
W B R BR GR
L N 3 4 5
15
TO OUTDOOR UNIT
71
Commercial Air Conditioner
CIRCUIT DIAGRAM OF INDOOR UNIT
4
TRANS.
REMOTE
RECEIVER
CN1
CN4
5
CN5
2
CN7
P3
P7 P8 P9 P10 P11
P5(N3) P6(N4)
P1
R
10
OR Y Y
OR
8
Y/G M
M M
PUMP
SWING
MOTOR MOTOR
CAP.
9
FAN MOTOR
B
W
NOTE:
1. PARTS 1
Y/G
2. PARTS 4
3. PARTS AND CONNECTED WIRES IN DASHED FRAME 7
AND CORRESPONDINGLY THERE IS A CLIP ON PCB
4. PARTS AND CONNECTED WIRES IN DASHED FRAME 8
5. PARTS AND CONNECTED WIRES IN DASHED FRAME 10 11 DETERMINED BY PRODUCTS TYPES.
6. PARTS AND CONNECTED WIRES IN DASHED FRAME 12 13
7. REFER TO OPERATION MANUAL TO SET SW1-SW5
8. PART IN DASHED FRAME 15 IS NOT AVAILABLE FOR COOLING ONLY TYPE,THE L N ON TERMINAL BLOCK IS EQUAL TO 1 2
6
A B
CN16
CN13
14
13
UP-DN L-R
CN19 CN20
P12 P13 P14 P15
P16
P17
Y BL W
(ROOM/PIPE)
(FREEZE)
CN8
CN6
1
11
M M
Y/G
M
SWING
12
ROOM
MOTOR
PIPING TEMP.
TEMP.
SENSOR
CAP. SENSOR
2 3 IN DASHED FRAME ARE NOT AVAILABLE FOR SOME TYPES.
5 6 ARE OPTIONAL, AND THE LINE MARKED 14 ONLY AVAILABLE IN CONVERTIBLE TYPE
9 ARE NOT AVAILABLE IN CONVERTIBLE TYPE,
ARE NOT AVAILABLE IN SOME TYPES.
Model: HCFU-18/28CF03
HCFU-18/28HF03
0010577269
W:WHITE B:BLACK
R:RED Y:YELLOW
REMOTE
OR:ORANGE BL:BLUE
CONTROLLER
BR:BROWN GR:GRAY
CENTRALIZED
Y/G:YELLOW/GREEN
CAP.:FAN MOTOR CAPACITOR
TRANS.:TRANSFORMER
CN12
OUTDOOR
CN11
PRESSURE
CN15 SWITCH CONTROL
3
7 FLOAT
SW5
SWITCH
SW4
CN21
SW3
SW2
SW1
OUTDOOR
DEFROST TEMP.
SENSOR CONTROL
ARE NOT AVAILABLE IN SOME TYPES.