HDU-18CF03, HDU-18HF03
DETECTOR
TERMINAL BLOCK
WIRED
CONTROLLER
PIPE
TEMPERATURE
SENSOR
CN12
CN2
CN3
CN5
CN7
TRANSFORMER
NOTE:
1.PARTS IN DASHED FRAMES AND
DASHED LINES ARE NOT AVAILABLE
FOR SOME TYPES.
2.DASHED LINES ARE NOT
AVAILABLE FOR COOLING ONLY TYPE.
3.DETECTOR FUNCTION IS OPTIONAL.
CN1
CN8
CN11
T3.15A/250VAC
FUSE
CN14
B
1
2 3 4 5
L
N
B R BR GR
B
B
COM
NC
NO
W
W
L
W
Y/G
Y/G
Y/G
M
TO OUTDOOR UNIT
R:RED W:WHITE
B:BLACK BR:BROWN
GR:GRAY
Y/G:YELLOW/GREEN
POWER
SUPPLY
FAN MOTOR
RELAY
CAPACITOR
0010576950
CIRCUIT
DETECTOR
WIRING DIAGRAM OF INDOOR UNIT
CN8
CN5
CN9
CN7
CN3
CN1
CN11
CN2
L
CN14
CN12
0010450010 for HDU-18HF03 indoor unit
For HDU-18HF03 indoor unit, the PCB code is 0010400662.
-205-
Wiring diagram and PCB photo