Fujitsu ASUH18LMAS Service Manual page 36

7. PC board diagrams
7-1. Models: ASUH18LMAS and ASUH24LMAS
TERMINAL
L
OUTDOOR UNIT
N
POWER SOURCE
AC208-230V
60Hz
SERIAL
EARTH
INDICATOR PCB
K18RB-1800HSE-D0
CN200
S10B-PASK-2
WHITE
DC FAN MOTOR
CN5 DC Fan motor
Terminal
Pin No. Function of terminal
code
1
Vm Motor power voltage input
2
3
GND
4 GND
5
Vcc Control power voltage input
6 Vsp Speed control voltage input
Revolution pulse output
7 FG
LOUVER UP / DOWN
LOUVER ( RIGHT / LEFT )
7-1. Models: ASUH18LMAS and ASUH24LMAS
1
AWG22 1
BLACK
2 CN14
AWG22 3
2 WHITE B3 ( 5.0 ) B-XASK-1-A
4
WHITE
AWG22 5
RED
3
EMI FILTER
ZC7KT 14X8X4
3 TURNS
UL1015 AWG20
GREEN
E1
UL1015 AWG16
GREEN
18 model: K20AZ-2002HSE-C1
24 model: K20AZ-2003HSE-C1
AWG28
1 WHITE 1 DC5V
2 AWG28 2
WHITE
AWG28
3 WHITE 3
4 AWG28 4
WHITE
CN9
5 AWG28 5
WHITE
B10B-PASK-1
6 AWG28 6
WHITE WHITE
7 AWG28 7
WHITE
8 AWG28 8
WHITE
DC12V
9 AWG28 9
WHITE
10 AWG28 WHITE 10
DC340V
RED 1
DC15V
BLACK 4
FM
WHITE 5
6
YELLOW
CN5
7
BLUE
B5 ( 7-2.3 ) B-XASK-1-A
WHITE
A
Lead wire
color
Red
Black
White
Yellow
Blue
DC12V
1
RED
2 CN7
ORANGE
M
3
YELLOW B05B-PLISK-1
4
PINK WHITE
5
BLUE
DC12V
1
RED
2
CN8
M
ORANGE 3
B06B-PLIRK-1
4
YELLOW
RED
5
PINK
6
BLUE
DC12V
CN47
1
EX. OUT B2B-XH-AM
2
WHITE
DC5V
CN46
1
2 B3B-XH-AM
EX. IN
3 WHITE
CONTROL UNIT
18 model: EZ-0200HHSE
24 model: EZ-0200KHSE
1 AWG26
CN13
2 AWG26
B07B-PASK-1
3 AWG26
WHITE
4 AWG26
DC5V
5 AWG26
DC12V
6 AWG26
7 AWG26
MAIN PCB
DC5V-2
1
BLACK
CN1 2
BLACK
3
B04B-PLIRK-1 BLACK
4
RED BLACK
DC5V
1
2
3
4
5
CN4
6
B12B-PASK-1 TEST
WHITE 7
8
9
10
11
12
TYPE A
OPTION UNIT (WIRELESS LAN ADAPTER)
DC12V-3
1
CN75 2
*Either A or B can be connected.
OR
B04B-PAKK-1 3
BLACK
4
OPTION UNIT (EXTERNAL INPUT AND OUTPUT)
AWG26
AWG26
AWG26
AWG26
TYPE B
OPTION UNIT (EXTERNAL INPUT AND OUTPUT)
DC12V-3
1 AWG26 GRAY
CN65 2 AWG26 GRAY
B04B-PASK-1 3 AWG26 GRAY
WHITE
4 AWG26 GRAY
*Only type B can be connected.
- (02-20) -
OPTION UNIT (2-WIRE REMOTE CONTROLLER)
1 AWG22 RED
CN301
CN300 2 AWG22 WHITE
1
RED B07B-PASK-1
B03B-XNISK-A-1 3
2 WHITE
WHITE WHITE
3
WHITE
4 COMMUNICATION PCB
WHITE
WHITE 5
K16JS-1600HSE-CA0
6
WHITE
WHITE 7
CN1
SM05B-SRSS-TB
WHITE
1 2 3 4 5
FLASH
CN1 Thermistor Characteristics.
THERMISTOR ( PIPE TEMP. )
BLACK Temperature
Thermistor
THERMISTOR ( ROOMTEMP. )
BLACK
Thermistor ( Pipe temp. )
Thermistor ( Room temp. )
BLACK
( 4 BLACK )
J2
GREEN
( 3 GREEN )
USB5-A4M2-KNSO-01
( 2 WHITE )
WHITE
( 1 RED ) WHITE
RED
UL1430 AWG26 x 4
FLASH
1
GRAY
2 CN308
GRAY
1 2 3 4 5 6 7 8 9 10 11 12
3 B04B-PASK-1
GRAY
CN309
WHITE
4
GRAY
B12B-PASK-1
WHITE
UART COMMUNICATION PCB
K14YM-1500HSE-CA0
CN310 CN311 CN312 CN313 CN314
B2B-XH-AM B2B-XH-AM B2B-XH-AM B3B-XH-AM B3B-XH-AM
WHITE WHITE WHITE WHITE WHITE
1 2 1 2 1 2 1 2 3 1 2 3
EX. OUT3 EX. IN1
EX. OUT1 EX. OUT2 EX. IN2
FLASH
1
CN308
2
1 2 3 4 5 6 7 8 9 10 11 12
B04B-PASK-1
3
CN309
WHITE
4
B12B-PASK-1
WHITE
COMMUNICATION PCB
K14YM-1500HSE-CA0
CN310 CN311 CN312 CN313 CN314
B2B-XH-AM B2B-XH-AM B2B-XH-AM B3B-XH-AM B3B-XH-AM
WHITE WHITE WHITE WHITE WHITE
1 2 1 2 1 2 1 2 3 1 2 3
EX. OUT1 EX. OUT2 EX. OUT3 EX. IN1 EX. IN2
REMOTE
CONTROLLER
( 2-WIRE )
EMI FILTER
ZCAT1518-0730
2 TURNS
32 ℉ 68 ℉ 86 ℉
176.03 k 62.91 k 39.57 k
1.10 V 2.21 V 2.79 V
33.62 k 12.54 k 8.04 k
1.15 V 2.22 V 2.77 V
7. PC board diagrams