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9-2. Model: AOUH18LUAS1
L
1
TO
N
INDOOR
2
UNIT
SERIAL
3
POWER SOURCE
L1
AC208/230 V
60 Hz
L2
WIRE w/TERMINAL
1015#16 GREEN
EARTH
EMI FILTER
XXXX
TERMINAL
3 TURNS
P1 Thermistor Characteristics.
Temperature
32℉
68℉
86℉
Thermistor
16.05 k
5.98 k
3.84 k
Thermistor (Pipe temp.)
1.14 V
2.21 V
2.77 V
168.60 k
62.55 k
40.01 k
Thermistor (Discharge temp.)
0.36 V
0.86 V
1.23 V
P5 Thermistor Characteristics.
Temperature
32℉
68℉
86℉
Thermistor
35.21 k
12.64 k
7.97 k
Thermistor (Outdoor temp.)
2.61 V
3.76 V
4.14 V
P10 Thermistor Characteristics.
Temperature
32℉
68℉
86℉
Thermistor
16.05 k
5.98 k
3.84 k
Thermistor (Pipe mid temp.)
1.92 V
3.13 V
3.61 V
P15 Thermistor Characteristics.
Temperature
32℉
68℉
86℉
Thermistor
168.60 k
62.55 k
40.01 k
Thermistor (Compressor temp.)
0.36 V
0.86 V
1.23 V
9-2. Model: AOUH18LUAS1
EMI FILTER
XXXX
EMI FILTER
2 TURNS
XXXX
1 TURN
UL1015 AWG20
BLACK
W103
B
UL1015 AWG20
WHITE
W104
B
UL1015 AWG20
RED
W70
B
UL1015 AWG14
BLACK
W100
B
UL1015 AWG14
W101
WHITE
B
UL1015 AWG16
GREEN
W102
B
FRAME
FRAME
DC5 V-2
THERMISTOR (PIPE TEMP.)
BLACK
1
BLACK
2
3
BLACK
4
BLACK
THERMISTOR (DISCHARGE TEMP.)
THERMISTOR (OUTDOOR TEMP.)
BLACK
1
2
BLACK
3
THERMISTOR (PIPE MID. TEMP.)
DC5 V
1
BLACK
BLACK
2
3
THERMISTOR (COMPRESSOR TEMP.)
DC5 V-2
1
BLACK
2
BLACK
3
CONTROL UNIT
18 model: EZ-0200YHUE
MAIN PCB
18 model: H18LBTA(U)-A02-02-SV
P1
B04B-PLIRK-1 (LF) (SN)
RED
P5
B03B-PLISK-1 (LF) (SN)
WHITE
P10
B03B-PLIEK-1 (LF) (SN)
WHITE
P15
B03B-PASK-1 (LF) (SN)
WHITE
- (02-38) -
UL3271 AWG16
W400
1
RED
RED
U
B
UL3271 AWG16
W401
1
WHITE
WHITE
V
B
UL3271 AWG16
W402
1
W
BLACK
BLACK
B
P60
1
BLUE
B2P3-VH-B (LF) (SN)
4-WAY VALVE COIL
2
OR 1-1123724-2
RED
WHITE
DC V
1
RED
DC15 V
P650
4
BLACK
B5 (7-2.3) B-XASK-1-A (LF) (SN)
FM
WHITE
5
WHITE
YELLOW
6
7
BROWN
P650 DC Fan Motor
GND-FAN
Pin No. Terminal
code
1
Vm
2
3
4
GND
5
Vcc
6
Vsp
DC12 V
7
FG
1
RED
P30
BLUE
2
B05B-PLISK-1 (LF) (SN)
M
ORANGE
3
WHITE
YELLOW
4
WHITE
5
Recommended drive condition: Unipolar drive, 1-2 phase excitation.
Phase No.
Lead wire colors
(Symbol)
A
White
On On
B
Yellow
Off
Orange
Off
A
Blue
Off Off
B
The movement mode
DC5 V
1
2
3
4
5
6
7
8: Valve close
P600
8
7
6
5
4
3
2
1: Valve open
1
B12B-PASK-1
2
WHITE
3
4
5
6
TEST/PCS/FLASH/EEPROM
7
8
9
10
11
12
GND-CPU
EMI FILTER
XXXX
2 TURNS
M
COMPRESSOR
Winding Resistance
U-V
V-W
1.916
(68
℉
)
U-W
COIL RESISTANCE 1,970
(68
℉
)
DC FAN MOTOR
Lead wire
Function of terminal
color
Motor power voltage input
Red
GND
Black
Control power voltage input
White
Speed control voltage input
Yellow
Revolution pulse output
Brown
ELECTRONIC EXPANSION VALVE COIL
P30 Expansion Valve Coil
Recommended Drive Condition
Unipolar Drive, 1-2 Phase Excitation.
1 (Red) - 2 (Blue)
Coil resistance
1 (Red) - 3 (Orange)
46.0
1 (Red) - 4 (Yellow)
(68℉)
1 (Red) - 5 (White)
Switching mode
1
2
3
4
5
6
7
8
Off
Off
Off
Off
Off
On
On On On
Off
Off
Off
Off
Off
Off
On On
On
Off
Off
Off
Off
Off
On
On On
WHITE
A
M
ORANGE
A
YELLOW
RED
BLUE
(COM)
B
B
9. PC board diagrams
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