Fujitsu GENERAL AOHG18KMTA, Service Manual

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7-2. Model: AOHG18KMTA
W103
B
W104
B
W70
B
W100
B
W101
B
W102
B
W400
B
U
W401
B
V
W402
B
W
FRAME FRAME
TERMINAL
JXO-SXC-6P-A-2
EMI FILTER
KRFC-13
1 TURN
COMPRESSOR
DC FAN MOTOR
EXPANSION VALVE COIL
1
2
3
4
5
1
4
5
6
7
1
2
1
2
3
4
1
2
3
P1
B04B-PLIRK-1
RED
P5
B03B-PLISK-1
WHITE
P60
B2P3-VH-B-E
BLUE
P650
B5 ( 7-2.3 ) B-XASK-1-A
WHITE
P30
B05B-PLISK-1
WHITE
UL3271 AWG16
BLACK
UL3271 AWG16
WHITE
UL3271 AWG16
RED
BLUE
RED
RED
BLACK
WHITE
YELLOW
BROWN
RED
BLUE
ORANGE
YELLOW
WHITE
UL1015 AWG20
BLACK
UL1015 AWG20
WHITE
UL1015 AWG20
RED
UL1015 AWG14
BLACK
UL1015 AWG14
WHITE
UL1015 AWG16
GREEN
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
THERMISTOR ( DISCHARGE TEMP. )
THERMISTOR ( PIPE TEMP. )
THERMISTOR ( OUTDOOR TEMP. )
L
N
SERIAL
EARTH
WIRE w/TERMINAL ( CORE )
1015#22
GREEN
1
2
3
L
N
M
FM
CM
RED
WHITE
BLACK
TO INDOOR UNIT
POWER SOURCE
AC230V
50Hz
INVERTER ASSEMBLY
EZ-01926HUE
MAIN PCB
G18KMTA(Y)-A01-00-SV
DC5V
DC
DC340V
DC15V-1
DC12V
U-V
V-W
U-W
Compressor
Winding Resistance
1.910 (20 )
4-WAY VALVE COIL
DC Resistance 2,780 (20 )
1
3
4
5
6
Pin No.
Terminal
code
Vm
GND
Vcc
Vsp
FG
Function of terminal
Revolution pulse output
Speed control voltage input
Control power voltage input
GND
Motor power voltage input
Lead wire
color
Red
Black
White
Yellow
Brown
2
7
P650 DC Fan Motor
P5 Thermistor Characteristics.
Thermistor ( Discharge temp. )
168.60 k
62.55 k
40.01 k
0.36 V 0.86 V 1.23 V
0 20 30
Thermistor
Thermistor ( Outdoor temp. )
35.21 k 12.64 k 7.97 k
2.61 V 3.76 V 4.14 V
Temperature
P1 Thermistor Characteristics.
0 20 30
Thermistor
Thermistor ( Pipe temp. )
16.05 k 5.98 k 3.84 k
1.14 V
2.21 V 2.77 V
Temperature
EMI FILTER
TRCB-25-15-12
8 TURNS
EMI FILTER
KRFC-13
2 TURNS
EMI FILTER
KRFC-13
2 TURNS
P600
B12B-PASK-1
WHITE
1
2
3
4
5
6
7
8
9
10
11
12
TEST
GND_CPU
1(Red) - 3(Blue)
1(Red) - 4(Orange)
1(Red) - 5(Yellow)
1(Red) - 6(White)
P30 Expansion Valve Coil
46.0
(20 )
Recommended Drive Condition
Unipolar Drive, 1-2 Phase Excitation.
Coil resistance
M
WHITE
RED
( COM )
ORANGE
BLUE YELLOW
Phase No.
1
2
3
4
Lead wire colors
White
Yellow
Orange
Blue
Off
Off Off
Off Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
On
On On
On On On
On On On
On On
1 2 3 4 5 6 7 8
Switching mode
Recommended drive condition : Unipolar drive, 1-2 phase excitation.
The movement mode
1 2 3 4 5 6 7 8 : Valve close
8 7 6 5 4 3 2 1 : Valve open
1
3
2 4
DC5V
GND_FAN
7-2. Model: AOHG18KMTA
- (02-22) -
7. PC board diagrams
TEC
H
N
IC
A
L
D
A
TA
A
N
D
PA
R
TS
LI
ST
TEC
H
N
IC
A
L
D
A
TA
A
N
D
PA
R
TS
LI
ST