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11. Electric data
11.1 Wiring diagram
HBU-18CF03
INDOOR AMBIENT
TEMPERATURE
SENSOR
INDOOR PIPE
TEMPERATURE
SENSOR
OUTDOOR DEFROST
TEMPREATURE SENSOR
W:WHITE B:BLACK BR:BROWN
BL:BLUE R:RED Y:YELLOW
OR:ORANGE
Y/G:YELLOW/GREEN
TO INDOOR UNIT
OUTDOOR DEFROST
TEMPREATURE SENSOR
NOTE£"
1¡¢FOR COOLING ONLY TYPE,THERE ARE NO DASHE FRAME
2¡¢THE LINE MARKED @@ IS BLACK OR BROWN FOR SOME
3¡¢PART IN DASHED FRAME
74
Commercial Air Conditioner
WIRING DIAGRAM OF INDOOR UNIT
CENTRAL
TRANSFORMER
CONTROLLER
CN4 CN3
CN9
CN21 CN22
ON
ON
ON
CN20
1 2
3
4
1 2
3
4
1 2
CN6 CN10
CN12 CN14 CN15 CN11 CN17 CN13
BR
BL
BR
M
1
SWING MOTOR
L N
POWER SUPPLY TO OUTDOOR UNIT
WIRING DIAGRAM OF OUTDOOR UNIT
TO INDOOR UNIT
1(L)
W
W
W
R
S
M
R
M
C
COMPRESSOR
OXYGEN PUMP
B
3
DASHED LINES MARKED @;THE LINE MARKED @@ IS
CONNECTED TO 1(L) ON TERMINAL BLOCK.
TYPES.
IS NOT AVAILABE FOR SOME
TYPES,CORRELATIVE LINES ARE CONNECTED TO 2(N) ON
TERMINAL BLOCK. DASHED PART
IS OPTIONAL.
FLOAT
CN5
CN2
CN1
CN18
FUSE
ON
1 2
3
4
T3.15A/250VAC
CN19
CN16
W
BL
B
NOTE
1
2
3
4
Y/G
Y/G
0010576949
TO INDOOR UNIT
@
@
2(N)
3
4
B
R
BR
Y/G
TERMINAL BLOCK
@
@
@
BL
W
4-WAY
VALVE
W
BR
B
@
@
FAN
M
MOTOR
BL
B
B: BLACK
AND
R: RED
BR:BROWN
BL:BLUE
W: WHITE
Y/G:YELLOW/GREEN
Model: HBU-18CF03
HDU-42CF03/H HPU-42HF03
0010576948
RECEIVER
INDOOR
FAN MOTOR
M
OR
OR
CAPACITOR
Y
M
WATER PUMP
MOTOR
Y
1. FOR SOME COOLING
ONLY TYPES,THERE ARE
NO DASHED LINES AND
PART IN DASHED
FRAME
1
2. CENTRAL CONTROL
FUNCTION IS OPTINAL
Y/G
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