AirStage AO54UJ User manual

R410A
Variable Refrigerant Flow System
Multi Air Conditioning System for Buildings
HEAT PUMP & COOLING ONLY TYPE
Model : AO54U
AO54J
SERVICE MANUAL
SERIES

CONTENTS
1. TEST RUN
1-4 TEST RUN CONTROL...............................................................................................
1-3-1 TEST RUN FROM OUTDOOR PC BOARD........................................................
1-2-1 CHECK ITEM BEFORE TEST RUN...................................................................
1-2-2 CHECK ITEM DURRING TEST RUN.................................................................
1-1-1 CUSTOM CODE SETTING.................................................................................
1-1-2 ADDRESS SETTING...........................................................................................
2-2 MICROPROCESSOR FUNCTION LIST.....................................................................
2-1 PCB LAYOUTS...........................................................................................................
2. FUNCTION OF PRINTED CIRCUIT BOARD
3-1-3 BASIC CIRCUIT OF 3 PHASE INVERTER.........................................................
3-1-2 INVERTER BLOCK OF OUTDOOR UNIT..........................................................
3-1-1 WHAT IS INVERTER..........................................................................................
3-1 INVERTER CONTROL...............................................................................................
1-2 CHECK ITEM..............................................................................................................
1-1 PRE SETTING............................................................................................................
2-1-2 OUTDOOR UNIT CONTROL CIRCUIT BOARD.................................................
2-1-1 INDOOR UNIT CONTROL CIRCUIT BOARD.....................................................
2-1-3 WIRED, SIMPLE REMOTE CONTROLLER.......................................................
1-3-2 TEST RUN FROM REMOTE CONTROLLER.....................................................
2-2-1 INDOOR UNIT.....................................................................................................
2-2-2 OUTDOOR UNIT.................................................................................................
2-3 FUNCTION AND SETTING OF EACH SWITCH........................................................
2-3-1 INDOOR UNIT (EXCEPT COMPACT WALL MOUNTED)..................................
2-3-2 OUTDOOR UNIT.................................................................................................
2-3-3 WIRED, SIMPLE REMOTE CONTROLLER........................................................
2-4 EXTERNAL INPUT & OUTPUT..................................................................................
2-4-1 INDOOR UNIT.....................................................................................................
2-4-2 OUTDOOR UNIT.................................................................................................
3. INVERTER CONTROL
3-1-4 PWM CONTROL.................................................................................................
3-2 CIRCUIT DISCRIPTION.............................................................................................
01-01
01-01
01-02
01-04
01-04
01-05
1-3 TEST RUN METHOD................................................................................................. 01-07
01-07
01-07
01-08
02-01
02-01
02-03
02-05
02-06
02-06
02-09
02-10
02-10
02-16
02-20
02-21
03-01
03-01
03-01
03-02
03-02
03-03
02-21
02-24
3-1-3 DIODE BRIDGE...................................................................................................
3-1-2 CURRENT DETECTION CIRCUIT......................................................................
3-1-1 POWER SUPPLY CIRCUIT................................................................................
3-1-4 THERMISTOR.....................................................................................................
03-03
03-03
03-03
03-03
3-1-7 SMOOTHING CONDENSOR..............................................................................
3-1-6 ACTIVE FILTER MODULE..................................................................................
3-1-5 CHOKE COIL.......................................................................................................
3-1-8 IPM (INTEGRATED POWER MODULE)............................................................
03-04
03-04
03-04
03-04
3-1-9 DC MOTOR (DC INVERTER)............................................................................. 03-05

4. OUTDOOR UNIT OPERATION CONTROL
04-01
5. INDOOR UNIT OPERATION
4-1 OPERATION..............................................................................................................
4-2 COMPRESSOR OPERATION...................................................................................
4-2-1 CAPACITY CONTROL.........................................................................................
4-2-2 FREQUENCY CONTROL....................................................................................
4-3 FAN CONTROL..........................................................................................................
4-3-1 COOLING OPERATION.......................................................................................
4-3-2 HEATING OPERATION.......................................................................................
4-3-3 PROTECTIVE OPERATION................................................................................
4-4 EXPANSION VALVE CONTROL...............................................................................
4-5 4-WAY VALVE CONTROL.........................................................................................
4-6 SPECIAL OPERATION..............................................................................................
5-1 FAN CONTROL..........................................................................................................
5-1-1 FAN SPEED SETTING........................................................................................
5-1-2 "AUTO"POSITION................................................................................................
5-2 MASTER CONTROL..................................................................................................
5-2-1 OPERATION MODE CONTROL.........................................................................
5-2-2 AUTO CHANGEOVER........................................................................................
5-3 LOUVER CONTROL..................................................................................................
5-5 DRAIN PUMP OPERATION.......................................................................................
5-6 FUNCTION.................................................................................................................
04-03
04-03
04-03
4-1-1 INPUT / OUTPUT LIST........................................................................................
4-1-2 OPERATION / STOP CONDITION......................................................................
04-01
04-02
04-04
04-04
04-04
04-04
04-05
04-05
04-06
04-06
04-06
04-06
05-01
05-01
05-02
05-02
05-02
5-3-1 ADJUSTING THE DIRECTION OF AIR CIRCULATION...................................... 05-04
5-3-2 SWING OPERATION........................................................................................... 05-05
05-04
05-08
05-07
05-01
5-4 ELECTRONIC EXPANSION VALVE CONTROL....................................................... 05-07
04-07
04-07
04-08
04-08
4-6-1 PRESSURE BALANCE CONTROL.....................................................................
4-6-2 OIL RECOVERY OPERATION............................................................................
4-6-3 DEFROSTING OPERATION...............................................................................
4-6-4 PRE-HEAT OPERATION.....................................................................................
4-6-5 BASE HEATER OUTPUT....................................................................................
4-7 PROTECTIVE FUNCTION.........................................................................................
4-7-1 PROTECTIVE FUNCTION LIST..........................................................................
5-2-3 "COOL"POSITION............................................................................................... 05-03
5-2-4 "HEAT"POSITION................................................................................................ 05-03
5-2-5 "FAN"POSITION................................................................................................... 05-03
5-6-1 ENERGY SAVE OPERATION.............................................................................
5-6-2 AUTO RESTART.................................................................................................
05-08
05-09
5-7 TIMER CONTROL...................................................................................................... 05-11
5-7-1 WIRELESS REMOTE CONTROLLER................................................................
5-7-2 WIRED REMOTE CONTROLLER.......................................................................
05-11
05-12
5-6-3 ICING PROTECTION CONTROL........................................................................ 05-09
5-6-4 COLD AIR BLOWING PROTECTION CONTROL............................................... 05-09
5-6-5 DEFROSTING OPERATION, OIL RECOVERY OPERATION............................ 05-09
5-6-6 AUXILIARY HEATER CONTROL........................................................................ 05-10

6. TROUBLE SHOOTING
6-1 INDOOR UNIT.............................................................................................................
6-1-1 NORMAL OPERATION DISPLAY........................................................................
6-1-2 ABNORMAL OPERATION DISPLAY...................................................................
6-5 CASE SUCH AS THESE ARE NORMAL...................................................................
06-01
06-01
06-02
6-2 OUTDOOR UNIT.........................................................................................................
6-2-1 NORMAL OPERATION DISPLAY........................................................................
6-2-2 ABNORMAL OPERATION DISPLAY...................................................................
06-03
06-03
06-04
7. INSTALLATION
7-1 ADDITIONAL CHARGE..............................................................................................
7-2 EXAMPLES OF SYSTEM SETTING..........................................................................
7-3 PRECAUTIONS FOR INSTALLATION.......................................................................
07-01
07-02
07-08
7-4 PUMP DOWN METHOD.............................................................................................
7-4-1 PROCEDURE OF THE PUMP DOWN................................................................
7-4-2 A FLOW CHART OF PUMP DOWN....................................................................
07-10
07-10
07-10
8. REFRIGERANT CAUTION -R410A-
8-1 R410A TOOLS............................................................................................................
8-2 PRECAUTIONS FOR INSTALLATION.......................................................................
8-3 PRECAUTIONS FOR SERVICING.............................................................................
08-01
08-02
08-04
8-4 NEW REFRIGERANT R410A.....................................................................................
8-4-1 WHAT IS HFC?....................................................................................................
8-4-2 DESIGHED PRESSURE OF R410A REFRIGERANT.........................................
08-05
8-5 DIFFERENCE FROM CONVENTIONAL MODEL (R22) AND PRECAUTIONS........ 08-08
08-05
08-07
9. APPENDING DATA1 (UNIT)
9-1 REFRIGERANT PIPE SYSTEM DIAGRAM................................................................
9-2 CHARACTERISTICS OF SENSORS..........................................................................
09-01
09-03
09-03
9-2-1 THERMISTOR.......................................................................................................
9-2-2 PRESSURE SENSOR..........................................................................................
9-3 WIRING DIAGRAM......................................................................................................
9-4 OUTDOOR INTERNAL LAYOUT................................................................................
9-5 MODEL DESIGNATION..............................................................................................
9-3-1 INDOOR UNIT.......................................................................................................
9-3-2 OUTDOOR UNIT...................................................................................................
09-05
09-14
09-16
09-18
09-06
09-06
6-3 REMOTE CONTROLLER...........................................................................................
6-3-1 WIRED REMOTE CONTROLLER........................................................................
6-3-2 SIMPLE REMOTE CONTROLLER.......................................................................
06-05
06-05
06-05
6-4 ERROR CODE & TROUBLE SHOOTING..................................................................
6-4-1 TROUBLE SHOOTING WITH ERROR CODE.....................................................
6-4-2 TROUBLE SHOOTING WITH NO ERROR CODE..............................................
06-06
06-06
06-37
06-43

1 . TEST RUN
TM
SERIES
R410A

1. TEST RUN
1-1 PRE SETTING
01-01
1-1-1 Custom code setting
A B C D
A B C D
Indoor
unit
Confusion
Remote
controller
Code change
When changing the custom code, follow the instruction below
Selecting the custom code prevents the indoor unit mix-up.
(Up to 4 codes can be set)
DIP SW 5 - 1
DIP SW 5 - 2
A (Primary setting)
OFF
OFF
B
ON
OFF
Table
C
OFF
ON
D
ON
ON
Custom code
SW
1
SW
2
SW
3
SW
4
SW
5
ONOFF
SW5-1
SW5-2
SW5-3
SW5-4
DIP SWITCH (SW1 ~ SW5)
Example : SW5
CUSTOM CODE SETTING FOR INDOOR UNIT
AU TYPE
AS 18 - 30 TYPE
AR TYPE
SW5
SW1 SW3
SW2
SW4
Jumper wire (JM2)
JM 1
Connect
Disconnect
Connect
Disconnect
Remote controller
custom code
A (Primary setting)
B
C
D
Table
Jumper wire
JM 2
Connect
Connect
Disconnect
Disconnect
Jumper wire (JM1)
AS 7-14 TYPE
CUSTOM CODE SETTING FOR WIRELESS REMOTE CONTROLLER
1234
START/STOP
MASTER
CONTROL
MASTER
CONTROL
Press until only the clock is
displayed.
Press for more than 5 seconds
to display the current custom
code. (Initially set to )
Change the custom code be-
tween to match the
code on the display to the air
conditioner custom code.
Press again to return to the
clock display. (The custom
code will be changed.)
NOTES
(1) If no buttons are pressed within 30 seconds after the custom code is displayed, the system returns to the original clock display.In this case, start
again from step 1.
(2) The remote controller resets to custom code A when the batteries in the remote controller are replaced. If you use a custom code other than custom
code A, reset the custom code after replacing the batteries.
If you do not know the air conditioner custom code setting, try each of the custom codes ( ) until you find the code which operates the air
conditioner.
MASTER
CONTROL

01-02
OPERATION
OPERATION
indicator
(Red)
MANUAL AUTO
SET TEMP (+)
ACL
FAN CONTROL
(1) Press and hold 3 sec the "MANUAL AUTO" button
of indoor unit.
Pi Pi Pi
(2) Press the ACL button, with pressing the
FAN CONTROL and SET TEMP (+) button.
(1) Press the set temp (+) or (-) button to select the
custom code adjust to indoor unit setting.
(2) Press the VERTICAL AIR FLOW to send
the code to the indoor unit.
+
-
CUSTOM CODE
(- - -)
The initial setting is " "
(1) Press the MASTER CONTROL to
change in to address setting mode.
(2) Make sure bottom number is "01"
If other than "01" press the SET TEMP (+) or (-)
to select "01".
(3) Press the FAN CONTROL button.
Address data display flashing.
(4) Press the SET TEMP (+) or (-) button to select the
address.
1. Address should be within "00" to "07".
2. Each unit should have different address.
:
+
-
SET "01"
:
Address data
:
+
-
Range
00 - 07
A
Pi Pi
Correct code:
Wrong code:
No Response
1. Switching selection of address setting mode.
2. Selection and confirmation of custom code.
3. Address setting
1-1-2 Address setting
*
*

01-03
MANUAL AUTO
(5) Press the START/STOP button and make sure the
beeping sound is heard.
(1) Press the SLEEP button.
(1) Press the Manual Auto Button 3 sec. (2) Press the ACL button.
OPERATION
(RED)
TIMER
(GREEN)
CORRECT : Pi PiPiPiPiPi
WRONG: Pi (3 sec)
ACL
01 02 03
01
4. Check Address setting
5. Completion of Address setting mode
6. Setting up each Indoor unit
continuously Flashing times of
address numbers
Operation lamp
turns off
Timer lamp keep blinks the number of times of address No.
"2" is needed when custom
code is different.
Address can be checked
by the number of blinking
of Timer Lamp.
After pressing the ACL
button, please set the
custom code again
if b,c,d setting.
7. Reset the power after setting up address of all Indoor units.
*If the reset is not performed, address can not be read in normally.
(6) Indoor unit is displayed address number.
ON
OFF
(Example) ADDRESS : 03
OPERATION
LAMP
(RED)
ON
OFF
TIMER
LAMP
(GREEN)
PiPi
Pi PiPiPi
PiPi
PiPi
Repeat the "1" "5" operation.

18
16 1914 15 20 23
Before test run, check the following items.
EV kit
Is the selection of the outdoor unit and the indoor units correct?
(Check the number of connected indoor units, total capacity of the indoor units)
Is the piping length correct?
(Ex. Maximum piping length : 70m)
Doesn't gas leak?
Have the vaccuum process done enough time?
Is the refrigerant flow correct?
1
4
Is the unit installed correct?
2
Is the unit installed with enough service space and without air obstacle?
3
Is the additional refrigerant charge amount correct?
Are the power supply cables connected?
Is the spec. for the power supply cable correct?
Is the spec. for connection cable correct?
(3 wire , 2.5mm )
Is the connection cable connected to all the units?
Is the remote controller cable connected correct?
Are the addresses set?
5
7
8
9
10
11
12
Is the voltage of power suppy within proper range?
13
Is the diameter and thickness of the selected pipe correct?
6Is the EV kit connected to all the unit?
14
16
18
Is the EV kit connection cable connected correct?
17
19
20
21
22
Have the all settings done on the PCB?
23
Is the 3 way valve opened?
24
Is the pipe heat-insulated which have the enough thickness?
(Humidity 70% :10mm, 70 80% :15mm, 80% :20mm)
Is the drain water-flow correct?
Is the power supplied to unit for more than 12 hours before the start of test run at outdoor
temperature of 20 or below?
1 50Hz 220 - 240V
1-2 CHECK ITEM
01-04
15
1211
1 2 3
21 23 24
10
13
1-2-1 Check Item Before Test Run
16 19 20 23 16 19 20 23 16 19 20 23
2
6 17
3 16 19 20
2
Is the connection cable connected correct?
4 5 7 8 9 22

During the test run operation, check the following items.
When the power supply turn on,check the following items.
Outdoor unit : LED 1 lights continuously.
if LED flushing, it means error occurs ,check the eroor and solve the problem.
Indoor unit : LED RED (operation lamp) & GREEN (timer lamp) lights flush alternately.
RC : CLOCK display indicates
When errors occur, don't advance towards the following step before a complete settlement of all these errors.
Start the Indoor unit test run from remote controller one by one (Refer to 1-3-2)
Check the following item.
Indoor unit
LED (red&green) light flush at the same time slowly.
Louver operates to open.
Fan rotates
Air flow comes
(Drain pump opration)
RC signal receive
Outdoor unit
Coresponds from indoor unit signal
Compressor start to operates
Fan rotates
Measure the following item.
Indoor unit
Air intake temp.
Air flow temp.
Outdoor unit
Outdoor temp.
Discharge pipe temp.
Suction pipe temp.
High pressure
Low pressure
Frequency of compressor
Continue the operation about 10 minutes.
When there is no ploblem, check the next indoor unit.
After every indoor unit is check by test run, please do test run using all of the indoor units and check them.
1
2
3
4
01-05
Outdoor
unit
Indoor
EV kit
unit
Wired
remote controller
Connection cable
1 50Hz 220 - 240V
No abnormal sound and vibration.
No abnormal sound and vibration.
1-2-2 Ceck Item Durring Test Run

01-06
CHECK LIST
Check item Checking Method
1
2
Standard
High pressure and low pressure
are normal? Confirm with a pressure gauge Cooling : Low pressure 0.7 to 0.9MPa (approx.)
Heating : High pressure 2.2 to 2.7 MPa (approx.)
3Intake and outlet air Temperature
of indoor unit are normal?
Check that there is a difference
between the intake and outlet air
temperatures.
Check operation sound of the
drain pump.
4
5
Water is drained from drain hose
or by the drain pump smoothly?
(Only for cooling mode) Confirm water is draining.
Cooling : Below -10 C (approx.)
Heating : Above 15 C (approx.)
Expansion valve of the stopped
indoor unit are normal?
Check the refrigerant flows to the
heat exchanger.(Wait at least 5
minutes after the indoor unit has
stopped before checking the
refrigerant.)
Cooling : No refrigerant flow
Heating : A little refrigerant flow
After operating the indoor unit,
the compressor operates?
Check operation sound and
the LED of outdoor unit PCB. Outdoor unit LED 3 :flushing

1-3 TEST RUN METHOD
Supply power to the unit for 12 hours prior to the start of operation if the outdoor temperature is lower
than 20 . The following is the procedure for the test run operation.
By setting DIP SW1-1 and SW1-2 on control PC board of outdoor unit, cooling test run or heating test run for all the indoor units
in the same refrigerant system can be performed.
1-3-1 TEST RUN FROM OUTDOOR PC BOARD
OFF [OFF,ON] or [ON,OFF]
SW1-2 Operation Mode Select position of [SW1-2, SW1-1]
ON
ON
OFF
SW1-1
OFF
ON
ON
OFF
Normal Operation
Normal Operation
Heating Test Run
Cooling Test Run
[OFF,OFF]
[OFF,ON] or [ON,OFF] [ON,ON]
[OFF,OFF] [ON,OFF]
[OFF,OFF] [OFF,ON]
01-07
1) Standard wired remote controller
Stop the indoor unit. Push the FAN CONTROL button and
MASTER CONTROL button simultaneously for more than two seconds.
The air conditioner will start to conduct a test run and " " will display on
the remote controller display.
However, the SET TEMP./DAY setting button does not have function,
but all other buttons, displays, and protection functions will operate.
1-3-2 TEST RUN FROM REMOTE CONTROLLER
To stop test run, push the START/STOP button of the standard wired remote
controller.
For the operation method, refer to the operating manual and perform operation
check.
Check that there are no abnormal sounds or vibration sounds during test run
operation.
2) Standard wireless remote controller
Short tow pieces of metallic bodies in the test run frame,
while the air conditioner is running.
To stop test run operation, push START/STOP button of the wireless
remote controller.
When the air conditioner is being test run, the OPERATION
and TIMER lamps of indoor unit flash slowly at the same time.
START/STOP button
TEST RUN button
TEST
RUN
Perform the test operation for 60 minutes.
DAY OFF
DELETE SET
ENERGY
SAVE THERMO SENSOR
SET BACK
DAY
CLOCK ADJUST
Start the indoor unit.

3) Simple remote controller
Stop the indoor and outdoor units. Push the remote controller
SET
button and button
simultaneously for more than three seconds. The air conditioner will start to conduct a test
run and " " will display on the temperature display.
display.
However the setting button does not have function but all other buttons,
displays and protection functions will operate.
To stop test running press the button of the simple remote controller.
For the operation method refer to the operating manual and perform operation check.
Check that there are no abnormal sounds or vibration sounds during test run operation.
01-08
1) When the test run signal is transmitted from standard wired, wireless remote controller, simple remote controller
and central remote controller.
(1) The test runn operation starts and the electric expansion valve is controlled to a maximum flow, regardless of
the temperature condition.
(2) De-frosting and frost prevention operation has priority over item(1).
(3) After 60 minutes passes, the test run stops.
2) When the test run signal is transmitted from the outdoor unit.
(1) Whether state of the indoor unit operates or stops, All units in the same refrigerant system will start to conduct a
test run in accordance with the operation mode set by DIP SW 1-1 or SW 1-2 of outdoor unit ( see 1 - 3 - 1 ).
(2) Test running initialization is shown below.
Fan speed Hi Hi
Room Temperature Indication 18 30
Vertical Air Direction Panel
Horizontal Air Direction Panel
Swing
Operating Mode Cooling Heating
OFF OFF
1-4 TEST RUN CONTROL
Position 1Position or
4 6
Position 3Position 3
Please refer to "5-4 LOUVER CONTROL" in this manual and find the definition
for air direction panel position.

2 . FUNCTION OF PRINTED
CIRCUIT BOARD
TM
SERIES
R410A

2-1 PCB LAYOUTS
2-1-1 INDOOR UNIT CONTROL CIRCUIT BOARD
2. FUNCTION OF PRINTED CIRCUIT BOARD
02-01
Indoor unit
SW 1
SW 2
DIP SW
Rotary
SW
SW 3
SW 4
Forbidden
Forbidden
Room temp correct coefficient of heating 1
Room temp correct coefficient of heating 2
Room temp correct coefficient of cooling
Forbidden(Indoor unit fan speed switch 1)
Forbidden(Indoor unit fan speed switch 2)
Forbidden(Indoor unit fan speed switch 3)
External input select edge / pulse
Forbidden(Indoor unit model code)
1
2
3
4
1
2
3
4
1
2
3
4
1
2
3
4
Forbidden
Forbidden(Indoor unit model code)
Forbidden(Indoor unit model code)
Forbidden(Indoor unit model code)
Forbidden
Forbidden
Forbidden
Auto restart validity / invalidity
Indoor unit control circuit board
SWITCH POSITION
Wireless remote controller custom code switch 1
1
2
3
4
Wireless remote controller custom code switch 2
Frost prevention setting switch
Draft prevention setting switch
SW 5
SW 8
SW 9
For AU / AR types indoor unit For AS type indoor unit
CN27
CN22 CN23
CN24
SW1 SW2
SW3 SW4 SW5
SW8 SW9
CN23
CN22
CN24
CN21
SW1
SW2
SW3SW9
SW8 SW4
SW5

(COMPACT WALL MOUNTED TYPE)
02-02
Compact wall mounted type indoor unit control circuit board
SWITCH POSITION
CN10
CN11
SW1 SW2
SW5
JM1
JM2
Indoor unit
SW 1
SW 2
DIP SW
Forbidden(Indoor unit fan speed switch 1)
Forbidden(Indoor unit fan speed switch 2)
Forbidden(Indoor unit model code)
1
2
3
4
1
2
3
4
Forbidden(Indoor unit model code)
Wireless remote controller custom code
Forbidden
Auto restart validity / invalidity
JM 1
JM 2
Jumper
wire Wireless remote controller custom code
Forbidden
Forbidden

2-1-2 OUTDOOR UNIT CONTROL CIRCUIT BOARD
02-03
Outdoor unit
SW 1
SW 2
SW 3
SW 4
SW 5
SW 6
SW 7
4 Electric current selector switch 2
1 Forbidden
1 Silent operation mode
3 Electric current selector switch 1
1 Forbidden(System type switch 1)
2 Forbidden
4 Forbidden(Refrigerant type switch)
SW 8
SW 201
3 Heating capacity shift switch 1
2 Forbidden
3 Forbidden
4 Forbidden
1 Forbidden
2 Forbidden
3 Forbidden
4 Forbidden
1 Cooling capacity shift switch 1
2 Cooling capacity shift switch 2
4 Heating capacity shift switch 2
1 Pipe length switch 1
2 Pipe length switch 2
3 Defrost temp setting switch 1
4 Defrost temp setting switch 2
DIP SW
2 Test run (Heating)
1 Test run (Cooling)
3 Pump down operation
4 Forced oil recovery operation
3 Forbidden(Model code switch)
2 Forbidden
1 Forbidden(System type switch 3)
2 Forbidden(System type switch 4)
3 Forbidden
4 Forbidden
1 Forbidden
2 Forbidden
3 Forbidden(Terminator selector switch 1)
4 Forbidden(Terminator selector switch 2)

Outdoor unit control circuit board
SWITCH POSITION
LED1
LED2
LED3
LED4
LED5
LED6
SW1
SW3
SW5
SW7
SW2
SW4
SW6
SW8
EX,OUT-1
(BLACK)
EX,OUT-2
(BLUE)
CN48
CN52
EX,IN-1
(YELLOW)
EX,IN-2
(GREEN)
CN49
CN50
Main - PCB
FRONT SIDE
P (Filter PWB)
1 2 3 4
O
F F
SW201
02-04
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
4
3
2
1
O
F
F
FRONT SIDE
Switching Transformer

2-1-3 WIRED, SIMPLE REMOTE CONTROLLER
02-05
Wired,Simple remote controller
DIP SW
Forbidden
1
2
3
4
5
6
Wired remote controller
Simple remote controller
SWITCH POSITION
Model setting
DIP Switch
Front case (back side)
ONOFF
1
2
3
4
5
6
ON
OFF
1 2 3 4 5 6
DIP switches
Forbidden
Forbidden
Auto changeover setting
Memory backup setting *1
*1 Wired remote controller only

2-2 MICROPROCESSOR FUNCTION LIST
2-2-1 INDOOR UNIT
02-06
Compact
Cassette
Thin
Cassette
Large
Cassette
Compact
Duct
Low
Static
Pressure
Duct
54
45
36
30
25
20 (22)
18
14
12
9
7
CN1 AC IN
CN2 TH. FUSE
CN3 FAN CAPA
CN4 FAN MOTOR
CN5 D. PUMP
CN10 SP-M (U,D)
CN11 SP-M (R,L)
CN12 HEATER
CN13 DISPLAY
CN14 E.E.VALVE
CN15 FLOAT SW
CN16 MOTOR F. BACK
CN17 REMOCON
CN18 TEST
CN19 R. TH
CN20 P. TH
CN22 EX. OUT1
CN23 EX. OUT2
CN24 EX. OUT3
CN25 FLASH
CN26 COMMUNICATION-PWB
CN27 EX. IN
CN101 NETWORK
CN201 COMMUNICATION
SW1 FUNCTION 1
SW2 FUNCTION 2
SW3 FUNCTION 3
SW4 FUNCTION 4
SW5 FUNCTION 5
SW8 FORBIDDEN
SW9
F101
F402
FORBIDDEN
FUSE 250V 3.15A
FUSE 250V 0.315A(COMMUNICATION)
INDOOR UNIT TYPE
MODEL
CODE