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Fujitsu AO*24LMAKL, Service Instruction

The Fujitsu AO*24LMAKL Service Instruction Manual is a handy resource for users looking to optimize their experience with this outstanding product. With easy-to-follow instructions, this manual covers everything you need to know, and it's conveniently available for free download at manualshive.com, ensuring you have all the information you need at your fingertips.

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04-01

4. CIRCUIT DIAGRAM

MODEL : AU*24LUAR

TO REMOTE

CONTROL UNIT

TERMINAL

1

2

3

1

2

3

THERMISTOR

(PIPE TEMP.)

THERMISTOR

(ROOM TEMP.)

STEPPING

MOTOR

FLOAT

SWITCH

DRAIN PUMP

MOTOR

FAN MOTOR

FAN MOTOR

CAPACITOR

BROWN
RED

RED

G

R

AY

G

R

AY

BL

AC

K

BL

AC

K

W

H

IT

E

R

ED

G

R

AY

G

R

AY

BL

AC

K

WHITE
BLACK

ORANGE
YELLOW
WHITE

BLACK

BLACK

BLACK

G

R

EE

N

WHITE

BLACK

RED
WHITE

GREEN/YELLOW

BLACK

BLACK
WHITE

WHITE
WHITE

RED
PURPLE
BLUE

BLACK

BLACK

BLACK

YELLOW
YELLOW

BROWN
RED

ORANGE
YELLOW
WHITE

1
2
3
4
5

1
2
3
5
6

1
2
3
5
6

1
2
3

1
2
3

1   2

1   2
1   2

1   2

1
2
3

1
2
3

1
2
3

1
2
3

1
2
3

1
2

1
2

1
2

1
2

1
2

1
2

1
2

1
2

1
2
3

1
2
3

1
2
3

1
2
3
4
5

1
2
3
4
5

1
2
3
4
5

C

N

10

C

N

15

C

N

6

C

N

1

C

N

3

C

N

16

C

N

5

C

N

4

CN7

C

N

17

CN8

C

O

N

TR

O

L 

BO

AR

D

TO OUTDOOR UNIT

TERMINAL

TH

ER

M

AL

FU

SE

 1

02

 C

L

N

FI

LT

ER

 B

O

AR

D

U

se

 T

 3

.1

5A

   

25

0V

Fu

se

 o

n 

F1

01

FM

Summary of Contents for AO*24LMAKL

Page 1: ...PE ROOM AIR CONDITIONER CASSETTE type Models Indoor unit Outdoor unit AU 24LUAR AU 30LUAS AU 36LUAS AU 45LUAS AU 54LUAS AO 24LMAKL AO 30LMAWL AO 36LMAWL AO 45LJBYL AO 54LJBYL INVERTER SERVICE INSTRUCTION R410A ...

Page 2: ...TY CONTROL 5 2 HEATING OPERATION 05 02 05 02 5 3 1 INDOOR UNIT CONTROL 5 3 DRY OPERATION 05 03 05 03 05 04 05 05 05 07 05 08 5 8 COMPRESSOR CONTROL 05 09 5 9 TIMER OPERATION CONTROL 05 11 5 10 ELECTRONIC EXPANSION VALVE CONTROL 05 13 5 11 TEST OPERATION CONTROL 05 13 5 12 PREVENT TO START FOR 3 MINUTES 3 MINUTES ST 05 13 5 13 4 WAY VALVE EXTENSION SELECT 05 13 5 14 AUTO RESTART 05 13 5 15 PUMP DOW...

Page 3: ...OPERATION RANGE 08 06 8 3 ELECTRIC CHARACTERISTICS 08 07 8 4 SAFETY DEVICE 08 09 8 5 FUNCTION SETTING 08 11 7 1 2 OUTDOOR UNIT DISPLAY 7 1 1 WIRED REMOTE CONTROLLER DISPLAY 7 1 ERROR DISPLAY 7 TROUBLE SHOOTING 7 2 TROUBLE SHOOTING WITH ERROR CODE 7 3 TROUBLE SHOOTING WITH NO ERROR CODE 7 4 SERVICE PARTS INFORMATION 07 01 07 01 8 5 1 INDOOR UNIT 08 11 8 5 2 OUTDOOR UNIT AO 30 36LMAWL 08 13 8 5 3 OU...

Page 4: ...ARTS LAYOUT DRAWING 2 REPLACEMENT PARTS For INDOOR UNIT 10 36 10 36 1 2 1 PARTS LAYOUT DRAWING 1 2 2 WIRING 1 2 3 DISASSEMBLY PROCESS 1 2 4 ASSEMBLY PROCESS of INVERTER UNIT 1 2 For AO 30 36LMAWL 10 08 10 08 10 11 10 10 10 16 1 3 1 PARTS LAYOUT DRAWING 1 3 2 WIRING 1 3 3 DISASSEMBLY PROCESS 1 3 4 ASSEMBLY PROCESS of INVERTER UNIT 1 3 For AO 45 54LJBYL 10 21 10 21 10 25 10 23 10 31 ...

Page 5: ...1 SPECIFICATIONS R410A CASSETTE type INVERTER ...

Page 6: ...um 1 30 34 44 75 97 54 58 119 128 1800 15 88 5 8inc 25 chargeless 10 FLARE 9 52 3 8inc 10 5 13 0 10 2 81 3 25 246 830 830 650 830 320 7 10 8 00 24200 27300 7 80 9 00 26600 30700 2 0 4 2 2 53 2 98 2 40 2 98 11 1 13 0 REMOTE CONTROLLER Wired ABS DRAIN PIPE MATERIAL SIZE Outer diameter 37 0 Inner diameter 32 0 DIMENSIONS H W D mm MAX LENGTH SIZE mm kg lbs WEIGHT CONNECTION METHOD NET GROSS POE 15 TYP...

Page 7: ... INVERTER Turbo 1 Propeller 1 100 103 DC TWIN ROTARY INVERTER 1300 850 900 Copper tube Aluminium 2 12 252 970 26 6 1 30 Copper tube Aluminium 798 900 36 38 2 38 1 30 White 5Y9 0 5NN Beige 10YR7 5 1 0NN 296 830 830 830 900 330 455 1060 1025 970 1050 445 37 52 82 115 FLARE 9 52 3 8 inc 15 88 5 8 inc 64 70 141 154 50 chargeless 15 WIRED ABS 30 R410A 2200 POE Outer diameter 37 0 Inner diameter 32 0 15...

Page 8: ... chargeless 20 m 30 R410A CHARGE g 3400 POE COOLING 15 to 43 HEATING 15 to 24 WIRED ABS mm Outer diameter 37 0 Inner diameter 32 0 Note Specifications are based on the following conditions Cooling Indoor temperature of 27 CDB 19 CWB and outdoor temperature of 35 CDB 24 CWB Heating Indoor temperature of 20 CDB 15 CWB and outdoor temperature of 7 CDB 6 CWB Pipe length 7 5 m Height difference 0 m Out...

Page 9: ...1 30 620 620 510 510 440 440 CASSETTE MODELS INVERTER HEAT PUMP TYPE INVERTER Turbo 1 Propeller 1 100 103 DC TWIN ROTARY INVERTER 1300 850 900 Copper tube Aluminium 798 900 36 38 2 38 1 30 White 5Y9 0 5NN Beige 10YR7 5 1 0NN 296 830 830 830 900 330 455 1060 1025 970 1050 445 52 115 FLARE 37 82 64 141 9 52 3 8 inc 15 88 5 8 inc 70 154 50 chargeless 15 WIRED ABS 30 R410A 2200 POE Outer diameter 37 0...

Page 10: ...5 CWB and outdoor temperature of 7 CDB 6 CWB Pipe length 7 5 m Height difference 0 m Outdoor unit Indoor unit Rows x Stages Rows Stages mm INDOOR STARTING METHOD Fin Fin m3 h INDOOR AIR CIRCULATION COOL HEAT AVAILABLE VOLTAGE RANGE COOLING OUTDOOR kW INPUT POWER kW kW A FAN TYPE Q ty TYPE FAN MOTOR OUTPUT W COMPRESSOR NOISE LEVEL SOUND PRESSURE COOL HEAT OUTPUT dB A OUTDOOR TYPE RATED MAX INDOOR O...

Page 11: ...2 DIMENSIONS R410A CASSETTE type INVERTER ...

Page 12: ...it mm Unit mm 940 30 940 235 Drain inside Dia 32 outside Dia 37 750 830 750 830 Bottom view 305 5 298 5 248 5 200 60 Drain pipe 100 Small pipe 70 Large pipe Side view Slender setting Bottom view Panel Side view Standard setting 2 DIMENSIONS MODEL AU 24LUAR MODEL AO 24LMAKL ...

Page 13: ...7 31 330 400 170 147 12 Top view Front view Side view 750 830 750 830 Bottom view Side view Slender setting 940 30 60 285 120 150 Small pipe Drain pipe Large pipe 250 940 305 5 298 5 248 5 Drain Inside Dia 32 Dia 37 Outside Bottom view Panel Side view Standard setting Unit mm ...

Page 14: ...0 151 99 196 170 12 330 Top view Side view Front view 750 830 750 830 Bottom view Unit mm Side view Slender setting 940 30 60 285 120 150 Small pipe Drain pipe Large pipe 250 940 305 5 298 5 248 5 Drain Inside Dia 32 Dia 37 Outside Bottom view Panel Side view Standard setting ...

Page 15: ...3 REFRIGERANT SYSTEM DIAGRAM R410A CASSETTE type INVERTER ...

Page 16: ...NDENSER EVAPOLATOR HIGH PRESSURE SWITCH THO THO THPO THD THR THR THPI THPI THD THPO COMPRESSOR ACCUMULATOR EXPANSION VALVE STRAINER MUFFLER 4 Way valve THERMISTOR DISCHARGE TEMP THERMISTOR ROOM TEMP THERMISTOR PIPE TEMP THERMISTOR OUTDOOR TEMP THERMISTOR PIPE TEMP Refrigerant Pipe Refrigerant Pipe COOL HEAT ...

Page 17: ...THO THO THC THPO THD THR THR THPI THPI THD THC THPO COMPRESSOR ACCUMULATOR EXPANSION VALVE STRAINER STRAINER 4 Way valve THERMISTOR DISCHARGE TEMP THERMISTOR ROOM TEMP THERMISTOR PIPE TEMP THERMISTOR OUTDOOR TEMP THERMISTOR PIPE TEMP THERMISTOR COMP TOP TEMP Refrigerant Pipe Refrigerant Pipe COOL HEAT EVAPOLATOR Charging Valve Charging Valve ...

Page 18: ...HC THPO THD THR THPI THR THPI THD THC THPO COMPRESSOR ACCUMULATOR EXPANSION VALVE STRAINER STRAINER STRAINER 4 Way valve THERMISTOR DISCHARGE TEMP THERMISTOR ROOM TEMP THERMISTOR PIPE TEMP THERMISTOR OUTDOOR TEMP THERMISTOR PIPE TEMP THERMISTOR COMP TOP TEMP Refrigerant Pipe Refrigerant Pipe COOL HEAT EVAPOLATOR Charging Valve Charging Valve MUFFLER ...

Page 19: ...4 CIRCUIT DIAGRAM R410A CASSETTE type INVERTER ...

Page 20: ...TE BLACK BLACK BLACK GREEN WHITE BLACK RED WHITE GREEN YELLOW BLACK BLACK WHITE WHITE WHITE RED PURPLE BLUE BLACK BLACK BLACK YELLOW YELLOW BROWN RED ORANGE YELLOW WHITE 1 2 3 4 5 1 2 3 5 6 1 2 3 5 6 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 1 2 3 1 2 3 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 CN10 CN15 CN6 CN1 CN3 CN16 CN5 CN4 CN7 CN17 CN8 CONTROL BOARD ...

Page 21: ...BLACK ORANGE YELLOW WHITE BLACK BLACK BLACK GREEN WHITE BLACK BLACK WHITE WHITE WHITE RED BLACK BLACK BLACK YELLOW YELLOW BROWN RED ORANGE YELLOW WHITE 1 2 3 4 5 1 3 5 1 3 5 2 1 3 2 1 3 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2 3 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 1 2 3 1 2 3 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 CN10 CN15 CN6 CN1 CN3 CN5 CN4 CN7 CN17 CN8 CONTROL BOARD TO OUTDOOR UNIT TERMINAL THERMA...

Page 22: ...LACK BLACK BLACK BLACK BLACK RED RED BROWN BROWN BLACK BLUE BROWN ORANGE W10 W11 TM104 TM105 TM305 TM304 TM303 CN30 CN11 CN27 W102 W103 W4 W5 W8 W1 W2 W3 FUSE F2 T 3 15A 250V FUSE F4 T 5A 250V PRINTED CIRCUIT BOARD 4WV COMPRESSOR FAN MOTOR FAN CAPACITOR EXPANSION VALVE COIL A U V W 1 2 3 1 2 1 2 1 2 1 2 1 2 1 2 1 2 3 4 5 6 7 1 2 3 4 5 6 FM CONNECTOR EV TERMINAL 1 2 N 3 L N FUSE 25A COMPRESSOR PRES...

Page 23: ...BOARD MAIN RED BLACK BLACK BROWN BLUE BLACK BROWN BLACK BLACK WHITE WHITE YELLOW YELLOW BROWN BROWN BLUE ORANGE RED RED RED RED BLACK WHITE WHITE BLACK BLACK ORANGE BROWN RED RED RED WHITE WHITE BLACK BLACK ORANGE YELLOW YELLOW BLUE WHITE BROWN ORANGE RED BLACK BROWN RED 4WV FM EV HIGH PRESSURE SW SOLENOID COIL EXPANSION VALVE COIL FAN MOTOR THERMISTOR HEAT SINK THERMISTOR DISCHARGE THERMISTOR PIP...

Page 24: ...OW BROWN BROWN BLUE ORANGE RED RED BLACK WHITE YELLOW BROWN RED RED RED BLACK WHITE WHITE WHITE WHITE BROWN YELLOW BLUE VIOLET BLACK ORANGE BROWN RED RED RED WHITE WHITE BLACK BLACK ORANGE YELLOW ORANGE BLACK BROWN RED 4WV FM FM EV HIGH PRESSURE SW SOLENOID COIL EXPANSION VALVE COIL FAN MOTOR 1 FAN MOTOR 2 THERMISTOR HEAT SINK THERMISTOR DISCHARGE THERMISTOR PIPE THERMISTOR OUTDOOR THERMISTOR COMP...

Page 25: ...5 DESCRIPTION OF EACH CONTROL OPERATION R410A CASSETTE type INVERTER ...

Page 26: ...re 1 based on the fan speed mode and the outdoor temperature minimum frequency maximum frequency AU 24LUAR 15Hz 20Hz 20Hz 20Hz 75Hz 90Hz 90Hz 92Hz AU 30LUAS AU 36LUAS AU 45LUAS 20Hz 92Hz AU 54LUAS Outdoor air temperature A zone 31 C B zone C zone D zone Hi Me Lo A zone 75Hz 52Hz 42Hz 36Hz 90Hz 70Hz 65Hz 55Hz 90Hz 92Hz 72Hz 60Hz 60Hz 75Hz 70Hz 65Hz 52Hz 42Hz 52Hz 42Hz 36Hz 36Hz 45Hz 75Hz 70Hz 65Hz ...

Page 27: ...of the setting temperature the compressor frequency is controlled within the range shown in Table2 However the maximum frequency is limited in the range shown in Figure 2 based on the outdoor temperature Table 2 Compressor Frequency Range Fig 2 Limit of Maximum Frequency based on Outdoor Temperature 05 02 Outdoor air temperature C zone B zone A zone A zone 75Hz 75Hz 75Hz 95Hz 90Hz 80Hz 95Hz 90Hz 8...

Page 28: ...wn in the Table 3 Room temperature Room temperature Compressor ON Ts 1 5 degC Ts 1 degC Compressor OFF Compressor ON ON OFF Indoor fan air flow mode Air flow mode Lo OFF 30 5 30 120 5 sec 180 180 Table 3 Compressor frequency Fig 3 Compressor Control based on Room Temperature Fig 4 Indoor Fan Control 05 03 Operating frequency AU 24LUAR 28Hz 45Hz 45Hz 30Hz AU 30LUAS AU 36LUAS AU 45LUAS 53Hz AU 54LUA...

Page 29: ...utdoor unit s operarion mode the operation mode is selected in accordance with the table below Table 4 Operation mode selection table When COOLING was selected at the same operation as COOLING OPERATION is performed When HEATING was selected at the same operation as HEATING OPERATION is performed When the compressor was stopped for 6 consecutive minutes by the temperature control function after th...

Page 30: ... Speed rpm Hi 620 510 440 300 Me Lo Heating S Lo Hi 620 510 440 300 Me Lo Cooling S Lo AU 36LUAS Operation mode Air flow mode Speed rpm Hi 620 510 440 300 Me Lo Heating S Lo Hi 620 510 440 300 Me Lo Cooling S Lo AU 54LUAS Operation mode Air flow mode Speed rpm Hi 700 600 520 300 Me Lo Heating S Lo Hi 700 600 520 300 Me Lo Cooling S Lo AU 45LUAS Operation mode Air flow mode Speed rpm Hi 700 600 520...

Page 31: ... the indoor heat exchanger sensor on heating mode Fig 6 Airflow change over Heating AUTO Fig 7 Cool Air Prevention Control Hold Go down one step Go up one step 3 COOLING OPERATION Switch the airflow AUTO and the indoor fan motor will run according to a room temperature as shown in Figure 5 On the other hand if switched in HIGH LOW the indoor motor will run at a constant airflow of COOL operation m...

Page 32: ...C the fan speed switches to 780rpm on heating mode For AU 30 36LUAS It runs at 500rpm for 20 seconds after starting up the outdoor fan When the outdoor heat exchanger tenperature is lower than 2 C the fan speed switches to 900rpm on heating mode For AU 45 54LUAS It runs at 500rpm for 20 seconds after starting up the outdoor fan When the outdoor heat exchanger tenperature is lower than 2 C the fan ...

Page 33: ... to swing The range of swing depends on the set airflow direction Swinging Range When the indoor fan is either at S Lo or Stop mode the swinging operation is interrupted and the louver stops at the memorized position 05 08 1 2 3 4 The indoor fan motor starts after the louver reaches to the setting position For AU 24LUAR At the start of operation if the setting louver position is the setting positi...

Page 34: ...n Frequency Range 05 09 AU 24LUAR 15Hz 20Hz 20Hz 20Hz 75Hz 90Hz 90Hz 92Hz AU 30LUAS AU 36LUAS AU 45LUAS 15Hz 20Hz 20Hz 20Hz 75Hz 95Hz 95Hz 92Hz 28Hz 45Hz 45Hz 30Hz 20Hz 92Hz AU 54LUAS 20Hz 92Hz 53Hz 2 OPERATION FREQUENCY CONTROL AT START UP 2 1 For AU 24LUAR The compressor frequency soon after the start up is controlled as shown in Figure 9 Fig 9 Compressor Control at Start up 56Hz 46sec 60sec 80s...

Page 35: ...y Frequency AU 30LUAS AU 36LUAS AU 45LUAS AU 54LUAS 180sec 60sec 120sec 120sec 720sec 180sec 80sec 180sec 180sec 720sec 40Hz 56Hz 56Hz 70Hz AU 30LUAS AU 36LUAS AU 45LUAS AU 54LUAS Time A Time B Time C Time E Time D Time A Time B Time C Time D Time E 1 2 1 Discharge pipe temp 30 C 2 Discharge pipe temp 30 C 1 Discharge pipe temp 35 C 2 Discharge pipe temp 35 C For AU 30 36LUAS For AU 45 54LUAS Hold...

Page 36: ... set up per day Use this timer function to set operating time for each day of the week Operation mode The operating time can be set in 30 min increments only The OFF time can be carried over to next day The ON timer and the OFF timer functions cannot be set with using the weekly timer Both ON and OFF time must be set 2 WEEKLY TIMER 2 1 WEEKLY TIMER Stop mode Stop mode Stop mode Operation mode Oper...

Page 37: ...etting day Preceding day Next day Setting day The SET BACK timer only changes the set temperature for 7 days it cannot be used to start or stop air conditioner operation The SET BACK timer can be set to operate up to two times per day but only one temperature setting can be used During the COOL DRY mode the air conditioner will operate at a minimum of 18 C even if the SET BACK temperature is set t...

Page 38: ...ess of whatever the room temperature sensor detects The test operation mode is released if 60 minutes have passed after setting up the test operation The compressor won t enter operation status for 3 minutes after the compressor is stopped even if any operation is given At the time when the air conditioner is switched from the cooling mode to heating mode the compressor is stopped and the 4 way va...

Page 39: ...peration stops Close the 3 way valve gas within 1minute after operations stops 4 The LED will go out 3minutes after it stops Disconnect the power supply after confirming that the LED has gone out When the product is operating 1 Press the PUMP DOWN switch SW2 on the outdoor unit The LED on the outdoor unit circuit board flickers every 1second and operation stops At this point recovery has not been ...

Page 40: ...ration time 1 1 For AU 24LUAR 2 1 For AU 24LUAR Defrost operation is released when the conditions become as shown in Table 10 2 Table 10 2 Defrost Release Condition Release Condition Outdoor heat exchanger temperature sensor value is higher than 12 C or Compressor operation time has passed 15 minutes 2 2 For AU 30 36 45 54LUAS 1 2 For AU 30 36 45 54LUAS The defrost operation starts when the outdoo...

Page 41: ...oor fan motor OFF 28 sec later 4 way valve OFF 34 sec later compressor ON Frequency 95 Hz Heating operation start Compressor ON Defrost Indicator Operation lamp 9 sec ON 1 sec OFF Outdoor heat exchanger temperature Over 10 C or Compressor ON time Over 15 minutes Defrost end 05 16 Compressor integrating operation 40 minutes and over Outdoor heat exchanger temperarure Below 8 C Defrost start ...

Page 42: ...tion lamp 9 sec ON 1 sec OFF Outdoor heat exchanger temperature Over 12 C or Compressor ON time Over 15 minutes Defrost end 05 17 Compressor integrating operation 45 minutes and over Outdoor heat exchanger temperarure Below 10 C Outdoor heat exchanger temperarure Below 8 C Outdoor temp 1 C Outdoor temp 1 C Compressor integrating operation 45 minutes and over Outdoor temp Outdoor heat exchanger tem...

Page 43: ...operates continuously for 3 minutes after the float switch is turned off Almost condensing water may be drained 2 When the float switch turns ON continuously for 3 min FAILURE INDICATION operates 1 During Cooling Dry operation During Heating Fan Stop operation 5 19 ENERGY SAVE FUNCTION 1 During Cooling Dry operation The thermostat temperature setting increases by 1 degC as soon as the ENERGY SAVE ...

Page 44: ...igher than Temperature the compressor stops When the discharge temperature becomes lower than Temperature the compressor operates Table 11 Discharge Temperature Over Rise Prevention Control Release Temperature 2 CURRENT RELEASE CONTROL 2 1 For AR 24LUAR The compressor frequency is controlled so that the outdoor unit input current does not exceeds the current limit value The compressor frequency re...

Page 45: ... C T0 Outdoor temperature 780 rpm 850 rpm 400 rpm 250 rpm 170 rpm 10 0A 9 5A 14 0A 13 5A 14 0A 13 5A 15 0A 14 5A 18 0A 17 5A 10 0A 9 5A 10 0A 9 5A 15 0A 14 5A 7 0A 6 5A 12 0A 11 5A 5 5A 5 0A 7 0A 6 5A 9 5A 9 0A Outdoor unit fan speed 2 2 For AU 30 36 45 54LUAS The compressor frequency is controlled so that the outdoor unit input current does not exceeds the current limit value that was set up with...

Page 46: ...lled as following based on the detection value of the indoor heat exchanger temperature sensor Fig 12 Heating Overload Protection Control 05 21 63 C 54 C 50 C Compressor is OFF The compressor frequency is decreased 10Hz every 60seconds Compressor OFF Release of protection Compressor ON The compressor frequency is increased 10Hz every 60seconds Hold Indoor heat exchange temperature 3 C 6 C 12 C The...

Page 47: ...6 REFRIGERANT CAUTION R410A R410A CASSETTE type INVERTER ...

Page 48: ...and the ser vice port side are possible to open and close at the same time Thermistor vacuum gauge Fig 4 15 To remove moisture from the refrigerating cycle complete ly it is necessary to perform appropriate vacuum drying For that reason vacuum conditions can be confirmed cer tainly Vacuum valve Fig 4 16 This valve builts in a check valve and it is easily possible to vacuum a refrigerating cycle or...

Page 49: ...del with HFC R407C R410A model If you use existing pipes it may cause resolution of compressor oil by remaining mineral oil 3 8 15 88mm R410A 22 29 19 7 25 R22 R407C R22 R407C R22 R407C 19 4 23 20 27 3 4 19 05mm R410A 24 36 24 29 R22 R407C 23 7 29 24 Material Nominal diameter in 1 4 3 8 1 2 5 8 3 4 7 8 1 1 8 1 1 4 1 1 2 1 3 8 1 6 35 9 52 12 70 15 88 19 05 22 22 28 58 31 75 38 10 34 92 25 40 Outsid...

Page 50: ...efrigerant charge Do it always from the liquid phase side Don t charge from the gas phase side Compressor oil is changed Be careful to handle synthetic oil since it resolves easily by moisture and contamination Don t mix new synthetic oil and mineral oil It may cause trouble We developed new synthetic oil since HFC refrigerant doesn t dissolve in mineral for R22 oil 06 03 ...

Page 51: ... It is necessary to use the vacuum pump which can obtain the high vacuum condition Precaution on Tools Feature 2 New Refrigerant has Approx 1 6 times higher pressure than previous refrigerant R410A High Pressure Different point from previous one Diameter of Service port has been changed from 1 4 Flare to 5 16 Flare It requires the gauge manifold and charge hose exclusively for R410A It requires th...

Page 52: ...hase out schedule of HCFC according to Montreal protocol 1996 2010 2000 2004 2015 2020 2030 60 40 20 100 Year 80 HCFC consumption of 1989 CFC consumption of 1989 x 2 8 65 35 10 0 5 started control only service use total abolition 100 0 06 05 ...

Page 53: ...emical compound including chlorine and hydrogen ODP 0 02 01 HCFC Hydro Chloro Fluoro Carbon For example R22 for air conditioner R134a for Car air conditioner HFC3 Hydro Fluoro Carbon R407C for air conditioner Refrigerant characteristics R22 Composition wt R22 100 Boiling Point 40 8 Behavior Pressure at 54 5 C kPa 2 151 Temperature Glide deg 0 ODP 0 055 R407C R32 R125 R134a 23 25 52 43 6 zeotrope 2...

Page 54: ... Pressure Mpa 39 2 27 40 2 32 41 2 38 42 2 44 44 2 57 45 2 63 46 2 69 47 2 76 48 2 83 49 2 90 51 3 04 52 3 11 53 3 18 54 3 26 56 3 41 57 3 49 58 3 57 59 3 65 61 3 82 62 3 90 63 3 99 64 4 08 Desighed pressure of R410A refrigerant Pressure Temp Relation between R410A condensing temperature and saturated pressure Temp Pressure Advantage Disadvantage Suitable for R410A higher system performance Near A...

Page 55: ... Use better grade of material for sliding parts for securing good lubrication of sliding part as HFC refrigerant does not contain chloride Review insulating materials Increase pressure resistance strength CAUTION During storage due care must be taken so that foreign matters such as dust and water do not enter HEAT EXCHANGER Review the water contaminants controlling level Use thinner tube to increa...

Page 56: ...7 TROUBLE SHOOTING R410A CASSETTE type INVERTER ...

Page 57: ... fan motor abnormal Outdoor unit fan motor error Outdoor communication signal error Forward transfer signal error Ex Self diagnosis Error code SU MO TU WE TH FR SA DAY OFF DELETE SET ENERGY SAVE SET BACK DAY CLOCK ADJUST Display DAY OFF DELETE SET ENERGY SAVE SET BACK DAY CLOCK ADJUST SET 1 Stop the air conditioner operation 2 Press the SET TEMPERATURE buttons and simultaneously for 5 seconds or m...

Page 58: ... for 5 seconds or more or there is no key input for 20 seconds to stop the display DAY 2 ERROR CODE HISTORY DISPLAY Up to 16 memorized error codes may be displayed for the indoor unit connected to the remote controller 4 Press the SET TEMPERATURE button to select the error history number SU MO TU WE TH FR SA Error code Error history number Lower 3 Press the START STOP button 0 1 2 3 4 5 6 7 F E d ...

Page 59: ...ormal operation Continuously lighting 5sec ON 1sec OFF Protected operation 1sec ON 1sec OFF Pump down operation 0 5sec 0 5sec 2sec ON OFF 1 ERROR DISPLAY 3 NORMAL OPERATION DISPLAY 2 ERROR DISPLAY METHOD Outdoor LED Blink 1 to 16 times 0 5sec ON 0 5sec OFF blinking 7 1 2 OUTDOOR UNIT DISPLAY 11 8 5 7 12 19 13 14 17 20 18 Error contents LED Flashing Pattern Display priority Trouble shooting Outdoor...

Page 60: ...r check correct the followings Check the connection of terminal between remote control and Indoor unit and check if there is a disconnection of the cable Upon correcting the removed connector or mis wiring reset the power Check Voltage at CN17 of Controller PCB Power supply to Remote Control If it is DC12V Remote Control is failure Controller PCB is normal Replace Remote Control If it is DC 0V Con...

Page 61: ...uipment which causes harmonic wave Check Point 2 Check Connection Check any loose or removed connection line of Indoor unit and Outdoor unit If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check connection between Outdoor Unit Main PCB and Filter PCB If there is loose connector or open cable Check Point 3 Check the voltage of power supply C...

Page 62: ...rature THERMISTOR PIPE TEMP THERMISTOR ROOM TEMP GRAY GRAY BLACK BLACK CN7 CN8 1 2 1 2 1 2 1 2 Room Temperature Sensor Error Indoor Unit Controller PCB Circuit Room Temperature Thermistor When Room Temperature Thermistor open or short circuit is detected at power ON 1 Connector connection failure 2 Thermistor failure 3 Controller PCB failure Check if connector is removed Check erroneous connection...

Page 63: ...Temperature Thermistor When Heat Exchanger Temperature Thermistor open or short circuit is detected at power ON 1 Connector connection failure 2 Thermistor failure 3 Controller PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Check Po...

Page 64: ...eat Exchanger Temperature Thermistor When Heat Exchanger Temperature Thermistor open or short circuit is detected at power ON or while running the compressor 1 Connector connection failure 2 Thermistor failure 3 Main PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correcting the removed connecto...

Page 65: ...Water Drain Abnormal Indoor Unit Controller PCB Circuit Float Switch When Float Switch is ON for more than 3 minutes 1 Float Switch failure 2 Shorted connector wire 3 Controller PCB failure Check operation of float switch any blocking by dust etc Remove Float switch and check ON OFF switching operation by using a meter If Float switch is detective replace it Check loose contact of CN15 shorted wir...

Page 66: ...r Error Outdoor Unit Main PCB Circuit Outdoor Temperature Thermistor When Outdoor Temperature Thermistor open or short circuit is detected at power ON or while running the compressor 1 Connector connection failure 2 Thermistor failure 3 Main PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if thermistor cable is open Upon correc...

Page 67: ...Pipe Temperature Sensor Error Outdoor Unit Main PCB Circuit Discharge Pipe Temperature Thermistor When Discharge Pipe Temperature Thermistor open or short circuit is detected at power ON or while running the compressor 1 Connector connection failure 2 Thermistor failure 3 Main PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if ...

Page 68: ... circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Note EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory ...

Page 69: ... 4 Capacitor failure 5 Control PCB failure Rotate the fan by hand when operation is off Check if fan is caught dropped off or locked motor If Fan or Bearing is abnormal replace it Check Indoor Fan motor PARTS INFORMATION 5 If Fan motor is abnormal replace it Check excessively high temperature around the motor If there is any surrounding equipment that causes heat Upon the temperature coming down r...

Page 70: ...n reappear Check external cause such as noise Check the complete insulation of the grounding Check if there is any equipment that causes harmonic wave near the power cable Neon light bulb or any electronic equipment which causes harmonic wave Check the voltage of power supply Check if AC198 264V appears at Outdoor Unit Terminal L N Check if Indicated value swings between AC70V and AC130V at Outdoo...

Page 71: ...mperature Sensor Error Outdoor Unit Main PCB Circuit Compressor Temperature Thermistor When Compressor Temperature Thermistor open or short circuit is detected at power ON or while running the compressor 1 Connector connection failure 2 Thermistor failure 3 Main PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if thermistor cabl...

Page 72: ...witch YES YES NO NO Pressure Switch Error Outdoor Unit Main PCB Circuit Pressure Switch 1 Connector connection failure 2 Pressure Switch failure 3 Main PCB failure When pressure switch open is detected in 10 seconds after the power is turned on Does abnormal LED indication show again Make sure circuit diagram of outdoor unit and check terminal voltage at Pressure Switch DC5 0V If the voltage does ...

Page 73: ... Check if the terminal connection is loose Check erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power Check Point 2 Check Outdoor Fan Heat Exchanger Is there anything obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off Check Outdoor Fan Motor Refer to Tr...

Page 74: ...re Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check Point 1 1 Reset Pow...

Page 75: ...or mis wiring reset the power Check Active Filter Module PARTS INFORMATION 3 If Active Filter Module is abnormal replace it Check Point 4 Replace Main PCB If Check Point 1 2 do not improve the symptom change Main PCB Check Point 1 Check external cause at Indoor and Outdoor Voltage drop or Noise Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failu...

Page 76: ...e connection of electric components 2 Main PCB failure If Check Point 1 do not improve the symptom change Main PCB Check if connector is removed Check erroneous connection Check if cable is open Upon correcting the removed connector or mis wiring reset the power Refer to PARTS INFORMATION 2 For Compressor Terminal Main PCB While running the compressor if the detected rotor location is out of phase...

Page 77: ...temperature coming down restart operation Check Point 3 Check Output Voltage of Main PCB Check outdoor unit circuit diagram and the voltage Measure at Main PCB side connector Check Outdoor Fan motor PARTS INFORMATION 6 If the voltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if t...

Page 78: ...ture Sensor Error Outdoor Unit Main PCB Circuit Heat Sink Temperature Thermistor When Heat Sink Temperature Thermistor open or short circuit is detected at power ON or while running the compressor 1 Connector connection failure 2 Thermistor failure 3 Main PCB failure Check Point 1 Check connection of Connector Check if connector is removed Check erroneous connection Check if thermistor cable is op...

Page 79: ...ressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently Outdoor Unit Main PCB Circuit 1 Defective connection of electric components 2 Main PCB failure Check Point 1 Check connection of around the Compressor components OK OK Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Mai...

Page 80: ...ctive contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check Point 3 Check Electrical Components Check Voltage of power supply Check AC198 264V appears at Indoor Unit Terminal 1 2 Power Supply Check Fuse F101 in Fi...

Page 81: ...ve contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of power supply Check if AC198 264V appears at Outdoor Unit Terminal L N YES YES Check Fuse F2 F4 in Main PCB If Fuse is open check loose termin...

Page 82: ... manual and Data Technical Manual Turn off Power and check correct followings Is there loose or removed communication line of Indoor Unit and Outdoor Unit Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic w...

Page 83: ...23 Check any objects that obstruct the air flow route Check clogged Heat Exchanger Is the Valve open Is capacity of Indoor Unit fitted to Room size Any windows open Or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check ...

Page 84: ...he screw of Fan loose Is there any object which obstruct the Fan rotation Is Main Unit installed in stable condition Is Fan Guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drain hose failure 3 Float Switch failure Diagnosis method when water i...

Page 85: ...d Locked compressor due to clogged dirt or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas Pipe Valve open Low Pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if Strainer is clogged PARTS INFORMATION 4 If there is no failure the defect of Compressor can be considered Compres...

Page 86: ...TM303 RED WHITE BLACK Compressor Inverter Compressor Check terminal connection of Compressor loose or incorrect wiring Check connection of Main PCB Loose or incorrect wiring Check winding resistance of each terminal If the resistance value is 0 or infinite replace Compressor If the symptom does not change with above Check 1 2 replace Main PCB Resistance Value 1 41 For AU 24LUAR 0 88 For AU 30 36LU...

Page 87: ...oltage between P and N1 of compressor stopping and operating Terminal Resistance value L2 P P N2 L2 L2 Tester Tester Check the diode If it is abnormal replace ACTIVE FILTER MODULE 360k 0 360k 720k 5 4M approx 5 3M approx 5 8M approx 5 4M approx Active Filter Module Remove connector check the open or short circuit and the diode in the module If the output voltage of compressor operating is less tha...

Page 88: ...ITE 1 2 3 4 5 6 at 20 C Outdoor unit Electronic Expansion Valve EEV Check connection of connector CN27 Loose connector or open cable Remove connector check each winding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check Voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace Main ...

Page 89: ...RED BLACK WHITE 150 C Check Point AU 30 36 45 54LUAS 44 5 10 40 5 10 Resistance value AC Thermal protector 130 C Pr 1 1 3 2 3 The connector inserting numbers 2 3 at 20 C at 20 C Indoor Unit Fan Motor Check each winding resistance of the motor If Resistance value is abnormal replace motor Check each winding resistance of the motor If Resistance value is abnormal replace motor 07 33 ...

Page 90: ...Red Blue Red Black White Red Read Wire 8 96 3 54 7 8 185 8 Resistance value AC Thermal protector Pr BLUE RED BLACK WHITE 150 C at 20 C Outdoor Unit Fan Motor Check each winding resistance of the motor If Resistance value is abnormal replace motor 07 34 ...

Page 91: ...8 APPENDING DATA R410A CASSETTE type INVERTER ...

Page 92: ...3 20 6 93 5 45 3 21 7 09 5 86 3 23 7 38 6 24 3 28 7 52 6 23 3 30 7 78 6 20 3 35 7 91 6 19 3 37 8 04 6 56 3 42 43 6 49 5 48 3 31 6 60 5 17 3 32 6 76 5 57 3 34 7 05 5 96 3 39 7 20 5 96 3 41 7 46 5 94 3 46 7 61 5 94 3 48 7 75 6 31 3 51 Outdoor temperature 19 CWB 21 CWB 22 CWB 23 CWB 12 CWB 15 CWB 16 CWB 18 CWB Indoor temperature 18 CDB 21 CDB 23 CDB 26 CDB 27 CDB 29 CDB 30 CDB 32 CDB AFR 20 8 AFR Air...

Page 93: ... 6 58 5 69 1 77 7 33 5 72 1 80 7 58 6 22 1 81 8 08 6 24 1 83 8 33 6 74 1 83 8 83 6 72 1 85 9 33 7 15 1 87 0 7 62 6 14 1 55 8 48 6 18 1 57 8 77 6 71 1 58 9 35 6 74 1 60 9 64 7 28 1 61 10 22 7 25 1 62 10 80 7 72 1 64 5 7 09 5 90 1 67 7 89 5 94 1 69 8 16 6 46 1 70 8 70 6 48 1 72 8 97 7 00 1 73 9 51 6 97 1 74 10 04 7 42 1 76 10 6 69 5 73 1 84 7 45 5 77 1 87 7 70 6 27 1 88 8 21 6 29 1 89 8 46 6 79 1 90...

Page 94: ...utdoor temperature Indoor temperature 16 CDB 18 CDB 20 CDB 23 CDB 25 CDB 27 CDB 30 CDB COOLING HEATING AFR 26 7 CDB TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI 10 7 15 5 98 2 43 7 96 6 02 2 47 8 23 6 54 2 48 8 78 6 57 2 50 9 05 7 09 2 52 9 59 7 06 2 54 10 13 7 52 2 57 0 8 53 6 60 2 12 9 50 6 64 2 15 9 83 7 22 2 16 10 47 7 24 2 19 10 80 7 82 2 20 11 45 7 79 2 22 12 09 8 30...

Page 95: ... Sensible Heat capacity kW PI Power Input kW AFR Air flow rate m3 min TC Total capacity kW SHC Sensible Heat capacity kW PI Power Input kW COOLING HEATING AFR 29 2 CDB TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI TC SHC PI 15 10 06 8 42 2 04 10 59 9 16 2 06 11 13 9 92 2 08 12 07 11 22 2 11 12 55 11 25 2 13 13 50 11 29 2 17 13 99 11 31 2 19 14 49 12 20 2 20 10 12 00 9 20 2 ...

Page 96: ... 97 9 01 2 28 11 53 9 76 2 30 12 51 11 04 2 34 13 0011 06 2 36 13 98 11 10 2 40 14 49 11 12 2 42 15 00 12 00 2 43 10 12 43 9 05 2 68 13 09 9 84 2 71 13 43 10 72 2 72 14 12 11 49 2 76 14 4511 41 2 78 15 09 11 19 2 80 15 39 11 06 2 81 15 66 11 81 2 82 0 11 40 8 25 3 34 12 00 8 97 3 38 12 29 9 82 3 40 12 86 10 58 3 44 13 1410 48 3 47 13 71 10 30 3 49 13 96 10 20 3 50 14 22 10 98 3 51 10 10 84 8 03 3 ...

Page 97: ...L AU 30 36LUAS AO 30 36LMAWL Indoor temperature Indoor humidity Outdoor temperature Cooling Dry 18 to 32 C About 80 or less 10 to 43 C Heating 16 to 30 C 10 to 24 C Operation Range Mode MODEL AU 45 54LUAS AO 45 54LJBYL Indoor temperature Indoor humidity Outdoor temperature Cooling Dry 18 to 32 C About 80 or less 15 to 43 C Heating 16 to 30 C 15 to 24 C Operation Range Mode 8 2 OPERATION RANGE ...

Page 98: ...4LUAR AO 24LMAKL AU 30LUAS AO 30LMAWL Power Supply Rated Value Mode 1 Wiring Spec 25 33 10 10 4 0 Indoor Fan Motor 0 153 0 64 0 73 Outdoor Fan Motor 0 15 12 5 12 4 2 86 2 84 15 2 14 8 15 15 30 27 4 0 0 19 1 00 0 42 0 13 230 50 Indoor unit Outdoor unit Voltage V Frequency Hz Cooling Heating Cooling Heating Current A Input kW Max Operating Current A Starting Current A Main Fuse Circuit breaker Curre...

Page 99: ...AWL AUT36LUAS AOT36LMAWL Power Supply Rated Value Mode 1 Wiring Spec Indoor Fan Motor Outdoor Fan Motor 240 50 Indoor unit Outdoor unit Voltage V Frequency Hz Cooling Heating Cooling Heating Current A Input kW Max Operating Current A Starting Current A Main Fuse Circuit breaker Current A Power Cable mm 2 2 Limited wiring length m Input kW Full Load Amp A Input kW Full Load Amp A Model Name AUT45LU...

Page 100: ...OFF 4 2 0 1MPa ON 3 2 0 15MPa OFF 4 2 0 1MPa ON 3 2 0 15MPa DISCHARGE THERMISTOR THERMAL PROTECTOR OFF 120 5 C ON 80 5 C OFF 120 5 C ON 80 5 C COMPRESSOR THERMISTOR THERMAL PROTECTOR OFF 130 5 C ON 80 5 C OFF 130 5 C ON 80 5 C FUSE ON MAIN PCB PROTECTION FORM AO 45LJBYL AO 54LJBYL FUSE SIDE OF INDOOR UNIT TERMINAL 10A 250V 10A 250V 3 15A 250V 3 15A 250V 5A 250V 5A 250V FAN MOTOR PROTECTOR THERMAL ...

Page 101: ...OFF PROTECTION FORM AU 30LUAS AU 36LUAS PCB FUSE 3 15A 250V 3 15A 250V FAN MOTOR PROTECTION THERMAL PROTECTOR 130 5 C OFF 130 5 C OFF TERMINAL FUSE THERMAL FUSE 102 2 C OFF 102 2 C OFF PROTECTION FORM AU 45LUAS AU 54LUAS PCB FUSE 3 15A 250V FAN MOTOR PROTECTION THERMAL PROTECTOR 130 5 C OFF TERMINAL FUSE THERMAL FUSE 102 2 C OFF 3 15A 250V 130 5 C OFF 102 2 C OFF ...

Page 102: ...rect coefficient Room temperature correct coefficient Forbidden Indoor unit number setting Forbidden Forbidden Forbidden Ceiling height setting INDOOR UNIT DIP SW 3 1 JM3 Jumper Wire 2 3 JM1 JM2 Rotary SW SW2 SW1 SW4 1 2 SW2 SW4 SW1 SW4 ON OFF SW1 3 2 1 3 2 1 JM1 JM2 JM3 8 5 FUNCTION SETTING 8 5 1 INDOOR UNIT ...

Page 103: ... OFF Invalidity ON Validity 0 deg 0 deg 0 deg cooling 2 deg SW 1 2 SW 1 3 0 deg heating dry 2 deg 2 deg ON ON ON OFF OFF 2 deg 2 deg OFF SW state 2 deg OFF ON 0 deg 4 deg SW4 2 4 3 Ceiling height setting SW4 1 Dip SW 4 1setting forbidden Factory setting Factory setting SW 4 1 OFF 3 OFF ON Less than 2 5 Normal High ceiling 1 High ceiling 2 Low ceiling ON ON 3 0 3 5 More than 3 5 OFF ON OFF 2 5 3 0 ...

Page 104: ...13 Pump down switch Change current capacity No use OFF 1 OUTDOOR UNIT 2 3 DIP SW 1 PUSH SW PUSH SW 1 DIP SW 1 OFF ON 2 3 Outdoor unit control circuit board SWITCH POSITION 8 5 2 OUTDOOR UNIT AO 30 36LMAWL ...

Page 105: ...s factory setting AO 36LMAWL 2 30000BTU model s factory setting AO 30LMAWL 13 5A 12 0A DIP SW1 CURRENT MAX 18 0A 1 15 0A 2 OFF OFF OFF ON ON OFF ON OFF 1 OFF ON 2 3 OFF OFF PUSH SWITCH SETTING Press the push button switch and PUMP DOWN OPERATION is starting SW2 setting ...

Page 106: ...15 Pump down switch Change current capacity No use OFF 1 OUTDOOR UNIT 2 3 DIP SW 1 PUSH SW PUSH SW 1 DIP SW 1 OFF ON 2 3 Outdoor unit control circuit board SWITCH POSITION 8 5 3 OUTDOOR UNIT AO 45 54LJBYL ...

Page 107: ...s factory setting AO 54LJBYL 2 45000BTU model s factory setting AO 45LJBYL 18 0A 15 5A DIP SW1 CURRENT MAX 23 5A 1 20 0A 2 OFF OFF OFF ON ON OFF ON OFF 1 OFF ON 2 3 OFF OFF PUSH SWITCH SETTING Press the push button switch and PUMP DOWN OPERATION is starting SW2 setting ...

Page 108: ...ler DIP SW Dual remote controller setting Group control setting Model setting Auto changeover setting 1 2 3 4 5 6 Memory backup setting Wired remote controller DIP Switch Front case back side ON ON OFF 1 2 3 4 5 6 8 5 4 WIRED REMOTE CONTROLLER ...

Page 109: ...e unit connection DIP SW No 3 ON Multiple unit connection OFF 1 3 Model setting The system type of the outdoor unit can be selected by setting up DIP switch No 4 as follows Factory setting Model Heat Pump model DIP SW No 4 ON Cooling only model OFF 1 4 Auto changeover setting Selecting auto changeover validity invalidity Factory setting Auto changeover Invalidity DIP SW No 5 ON Validity OFF 1 5 Me...

Page 110: ...9 INSTALLATION MANUAL R410A CASSETTE type INVERTER ...

Page 111: ...e holding down the C section of Fig 9 4 locations Fig 9 Part B detail view Panel base Fig 10 C Panel frame CAUTION Always remove the panel frame after removing the intake grille 1 POSITION THE CEILING HOLE AND HANGING BOLTS Fig 11 940 mm 37 890 mm 35 3 64 750 mm 29 17 32 750 mm 29 17 32 Hanging bolt M10 Fig 13 A Standard setting Hole in anchor Hole in plug Concrete Insert Drain pipe I D 32 mm 60 m...

Page 112: ...THERMO SENSOR button again for 5 seconds or more to lock the function The thermo sensor display flashes and then remains on when the function is locked 4 Make sure that the function is locked C Indoor unit remote controller setting room temperature sensor selection The temperature sensor of the indoor unit or the remote controller can be used to detect the room temperature TEST RUN CAUTION Supply ...

Page 113: ...ears old may approach the unit take preventive measures so that they cannot reach the unit For authorized service personnel only DANGER Never touch electrical components immediately after the power supply has been turned off Electrical shock may occur After turning off the power always wait 5 minutes or more before touching electrical components WARNING 1 For the air conditioner to operate satisfa...

Page 114: ...he wiring and has an isolation distance of at least 3 mm between the contacts of each pole 6 Perform wiring work in accordance with standards so that the air conditioner can be operated safely and posi tively 7 Install a leakage circuit breaker in accordance with the related laws and regulations and electric company standards CAUTION 1 The power source capacity must be the sum of the air condition...

Page 115: ...m pump for R410A exclusively 9 Using the same vacuum pump for different refrigerants may damage the vacuum pump or the unit 0 Use a clean gauge manifold and charging hose for R410A exclusively A If refrigerant leaks while work is being carried out ventilate the area If the refrigerant comes in contact with a flame it produces a toxic gas Be careful not to scratch the air conditioner when handling ...

Page 116: ...wire 2 Using a screwdriver remove the terminal screw s on the terminal board 3 Using pliers bend the solid wire to form a loop suitable for the terminal screw 4 Shape the loop wire properly place it on the terminal board and tighten securely with the terminal screw using a screwdriver B For strand wiring 1 Cut the wire end with a wire cutter or wire cutting pliers then strip the insulation to abou...

Page 117: ...10 REPLACEMENT PARTS R410A CASSETTE type INVERTER ...

Page 118: ...4 way valve PTC Thermistor Thermistor Discharge temp 1 REPLACEMENT PARTS For OUTDOOR UNIT 1 1 For AO 18 24LMAKL 1 1 1 PARTS LAYOUT DRAWING 10 01 Fan motor Fan Heat Exchanger Accumulator Pressure SW Coil Expansion valve Expansion valve Solenoid ...

Page 119: ...Thermistor Heat exchanger temp 2 way valve Liquid 3 way valve Gas 10 02 Thermo Holder Thermistor Outdoor Temp ...

Page 120: ...emp ENLARGED DETAIL 1 1 2 WIRING For AO 18 24LMAKL 10 03 BIND Thermistor Discharge temp Thermistor Compressor temp Thermistor Heat exchanger temp Thermistor Outdoor temp PTC Thermistor Coil Expansion valve Pressure SW CLAMP Solenoid wire Fan motor wire Fan capacitor wire Compressor wire ...

Page 121: ... screws Remove the TOP PANEL upward 2 CONTROL BOX COVER removal Remove the 3 mounting screws Remove the CONTROL BOX COVER and TERMINAL COVER REAR VIEW 1 1 3 DISASSEMBLY PROCESS For AO 18 24LMAKL 10 04 TOP PANEL CONTROL BOX COVER TERMINAL COVER ...

Page 122: ...charge temp Yellow Thermistor Heat EX temp Red Thermistor Outdoor temp Blue Pressure SW Red PTC Thermistor Green Coil Expansion valve Red Solenoid White Fan motor SCREW Compressor Red White Black Twist 3 times or more Twist 3 times or more Active Filter Module TM104 Yellow TM105 Blue From CN407 Red Black P White N1 Purple L1 White L2 White Black White Black White Red ...

Page 123: ...ng upward 10 06 Hook 2 places Hook 2 places Hook FRONT PANEL VALVE COVER 5 VALVE COVER removal Remove the VALVE COVER Replaceable Component Compressor Accumulator Solenoid Thermistor Discharge temp Thermistor Outdoor temp PTC Thermistor Pressure SW Coil Expansion valve Fan motor Fan ...

Page 124: ...6 RIGHT PANEL removal Remove the 9 mounting screws Remove the RIGHT PANEL by sliding upward 10 07 Hook Hook Hook RIGHT PANEL Replaceable Component Thermistor Heat exchanger temp ...

Page 125: ...ter Module Thermistor Heat sink Fan motor Fan Heat Exchanger Accumulator Compressor 4 way valve Solenoid Thermistor Compressor temp Thermistor Discharge temp VIEW A A Choke coil 1 2 1 PARTS LAYOUT DRAWING 1 2 For AO 30 36LMAWL 10 08 ...

Page 126: ...hermistor Heat exchanger temp Coil Expansion valve Expansion valve Check valve Pressure SW AOU18 2 way valve Liquid AOU24 36 3 way valve Liquid 3 way valve Gas 10 09 Thermo Holder Thermistor Outdoor Temp ...

Page 127: ...Expansion valve BIND Compressor wire Solenoid wire CLAMP BIND Thermistor Discharge temp wire Thermistor Outdoor temp wire Thermistor Compressor temp wire Thermistor Heat exchanger temp wire Coil Expansion valve wire Pressure SW wire Thermistor Heat exchanger temp BIND Thermistor Heat exchanger temp Coil Expansion valve Pressure SW Thermistor Outdoor temp ENLARGED DETAIL ENLARGED DETAIL VIEW B B 1 ...

Page 128: ...Remove the 7 mounting screws Remove the TOP PANEL upward FRONT VIEW REAR VIEW 1 2 3 DISASSEMBLY PROCESS For AO 30 36LMAWL 10 11 Replaceable Component Compressor Accumulator 4 way valve Solenoid Thermistor Compressor temp Thermistor Discharge temp Thermistor Outdoor temp Thermistor Heat exchanger temp Pressure SW Coil Expansion valve ...

Page 129: ...crews Remove the connectors and cords Refer to VIEW C D Remove the INVERTER BOX upward 10 12 G G Remove power supply Connection cord Remove the connectors Remove the connectors C D VIEW C VIEW D Choke coil Terminal REAR VIEW FRONT VIEW INVERTER BOX ...

Page 130: ...ve the INVERTER BOX COVER upward Remove the connector and cords 10 13 Hook 2 places INVERTER BOX COVER CN1 Black Brown Red W6 Black W4 Black W7 White W5 White Twist W6 and W7 4 times or more Twist W4 and W5 2 times or more E F VIEW E ...

Page 131: ... 14 BIND W12 P Yellow W13 N1 Blue CN407 CN407 P Yellow N1 Blue Black Red L1 White Twist 4 times or more 2 turn the Wire this way L2 Brown Thermistor Heat sink Remove the connector and cords VIEW F DETAIL ...

Page 132: ...rd 10 15 INVERTER BOX A REAR VIEW LEFT SIDE VIEW 1 3 3 4 4 5 5 6 6 2 Main PCB Remove the 1 mounting screw Remove the Main PCB upward Filter PCB Remove the 2 mounting screws Remove the Filter PCB upward Screw Screw Hook 3 places Hook 2 places Main PCB Filter PCB ...

Page 133: ...ig 3 temporarily fix MAIN PCB to INVERTER BOX A After it is temporary fix of MAIN PCB As shown in the Fig 4 7 pull out the wires of MAIN PCB 1 2 4 ASSEMBLY PROCESS of INVERTER UNIT For AO 30 36LMAWL 10 16 Screw 2 places Hook 2 places Fig 1 Fig 3 Fig 2 FILTER PCB INVERTER BOX A W12 Yellow W13 Blue Screw Fig 5 Fig 4 Fig 6 7 Hook 3 places MAIN PCB ...

Page 134: ...wires As shown in Fig 5 pull out the wires and fix them 10 17 W16 Red W17 Black Thermistor Heat sink CN407 W303 Black W304 White W305 Red Fig 4 Fig 5 W12 Yellow W13 Blue W17 Black W16 Red W303 Black W304 White W305 Red Hook 2 places ...

Page 135: ...As shown in Fig 6 pull out the wires As shown in Fig 7 pull out the wires 10 18 Fig 6 Fig 7 W200 Red CN1 CN1 wire with connector W200 Red A DETAIL A HYIC1 Don t come in contact with HYIC1 ...

Page 136: ...As shown in Fig 8 connect wires As shown in Fig 9 connect wires 10 19 Fig 8 Fig 9 CN1 White CN34 Yellow Through this hole W21 Orange W22 Orange TM102 White line TM101 Black line PTC Thermistor ...

Page 137: ...n the figures set wire with connector and bind it to INVERTER BOX A 10 20 Fig 10 Fig 11 Thermistor Heat sink Hook 3 places Pull out the wire through this opening CN407 W303 Black W304 White W305 Red Through the hole Through the guide Bind wire to INVERTER BOX A ...

Page 138: ...e Active Filter Module Thermistor Heat sink Fan motor Fan Heat Exchanger Accumulator Compressor 4 way valve Solenoid Thermistor Compressor temp Thermistor Discharge temp Choke coil 1 3 1 PARTS LAYOUT DRAWING 10 21 1 3 For AO 45 54LJBYL ...

Page 139: ...Thermistor Heat exchanger temp Coil Expansion valve Expansion valve Check valve Pressure SW 3 way valve Liquid 3 way valve Gas 10 22 Thermo Holder Thermistor Outdoor Temp ...

Page 140: ...D Thermistor Discharge temp Thermistor Compressor temp Thermistor Heat exchanger temp Coil Expansion valve ENLARGED DETAIL 1 3 2 WIRING For AO 45 54LJBYL 10 23 CLAMP BIND Thermistor Discharge temp wire Thermistor Outdoor temp wire Thermistor Compressor temp wire Thermistor Heat exchanger temp wire Coil Expansion valve wire Pressure SW wire ...

Page 141: ...Thermistor Outdoor temp Thermistor Heat exchanger temp Coil Expansion valve CLAMP with U PIPE Thermistor Heat exchanger temp Coil Expansion valve ENLARGED DETAIL 10 24 ...

Page 142: ...sliding downward 1 3 3 DISASSEMBLY PROCESS AO 45 54LJBYL 10 25 Replaceable Component Compressor Accumulator 4 way valve Solenoid Thermistor Compressor temp Thermistor Discharge temp Thermistor Outdoor temp Thermistor Heat exchanger temp Pressure SW Coil Expansion valve Hook 3 places ...

Page 143: ...2 TOP PANEL removal Remove the 7 mounting screws Remove the TOP PANEL upward FRONT VIEW REAR VIEW 10 26 ...

Page 144: ...crews Remove the connectors and cords Refer to VIEW C D Remove the INVERTER BOX upward G G VIEW C REAR VIEW C D FRONT VIEW Remove power supply Connection cord Remove the connectors INVERTER BOX Remove the connectors VIEW D Choke coil Terminal 10 27 ...

Page 145: ... 1 mounting screw Remove the INVERTER BOX COVER upward Remove the connector and cords 10 28 Hook 2 places INVERTER BOX COVER E F VIEW E W6 Black W7 White W200 Red W2 White W1 Black Twist W6 and W7 2 times or more ...

Page 146: ...10 29 P Yellow N1 Blue Black Red L1 White L2 Brown Gray Thermistor Heat sink White D Power Bridge BIND P Yellow N1 Blue CN407 CN407 Remove the connector and cords VIEW F ...

Page 147: ...rd 10 30 INVERTER BOX A REAR VIEW LEFT SIDE VIEW 1 3 3 4 4 5 5 6 6 2 Main PCB Remove the 1 mounting screw Remove the Main PCB upward Filter PCB Remove the 2 mounting screws Remove the Filter PCB upward Screw Screw Hook 3 places Hook 2 places Main PCB Filter PCB ...

Page 148: ...Fig 3 temporarily fix MAIN PCB to INVERTER BOX A After it is temporary fix of MAIN PCB As shown in the Fig 4 6 pull out the wires of MAIN PCB 1 3 4 ASSEMBLY PROCESS of INVERTER UNIT For AO 45 54LJBYL 10 31 Screw 2 places Hook 2 places Fig 1 Fig 3 Fig 2 FILTER PCB INVERTER BOX A Fig 5 Fig 4 Fig 6 Hook 3 places MAIN PCB W14 Yellow W15 Blue Screw ...

Page 149: ...he wires As shown in Fig 5 pull out the wires and fix them 10 32 CN407 W303 Black W304 White W305 Red W303 Black W304 White W305 Red Fig 4 Fig 5 Thermistor Heat sink Thermistor Heat sink CN407 W107 White W108 Violet Hook 2 places ...

Page 150: ...As shown in Fig 6 pull out the wires As shown in Fig 7 connect wires 10 33 Fig 6 Fig 7 VIEW A Don t come in contact with HYIC1 W200 Red CN34 Yellow CN1 White CN1 wire with connector A HYIC1 ...

Page 151: ...As shown in Fig 8 connect wires 10 34 Fig 8 W108 Violet W107 White Through this hole Twist 5 times or more Gray line TM102 White line TM101 Black line Make White line on Black line ...

Page 152: ...n the figures set wire with connector and bind it to INVERTER BOX A 10 35 Fig 9 Fig 10 Thermistor Heat sink Hook 3 places Pull out the wire through this opening CN407 Bind wire to INVERTER BOX A Through the guide Through the hole W303 Black W304 White W305 Red ...

Page 153: ...ILLE removal Push the INTAKE GRILLE pushbuttons 2 places Open the INTAKE GRILLE Remove the GRILLE hinge wire Remove the INTAKE GRILLE PUSH OPEN Pushbotton 2 places A B Pull up while pressing the B section Part B section view Part A detail view GRILLE hinge wire PUSH INTAKE GRILLE ...

Page 154: ...37 2 FILTER removal Remove the FILTER FILTER Hook 3 places 3 CONTROL BOX COVER removal Remove the 2 mounting boits Remove the CONTROL BOX COVER upward CONTROL BOX COVER B A DETAIL A 3 places DETAIL B MOVE ...

Page 155: ...itor Plastic Power Supply PCB Controller PCB Terminal 3P CN17 Remocon CN15 Float SW CN8 Thermistor Room temp CN7 Thermistor Heat Exchanger temp CN10 Stepping motor CN5 FAN MOTOR CN16 MOTOR Feed Back CN4 Capacitor CN6 Drain Pump CN3 Fuse in Terminal CN1 Power Supply PCB BLACK WHITE RED Detail View Detail View Terminal 3P HOOK BLACK WHITE RED Capacitor elec For AU 36 45 54LUAS The wire must not pass...

Page 156: ...orner section A of the PANEL FRAME as shown in figure 4 locations Pull up in the direction of the arrow while holding down the C section of figure 4 locations PANEL FRAME A A A A B C Part A detail view Part B detail view PANEL FRAME PANEL BASE ...

Page 157: ... BASE removal Remove the 4 mounting bolts Remove the PANEL BASE upward 7 CONTROL UNIT removal Remove the 3 mounting bolts and 1 mouting screw Remove the CONTROL UNIT upward PANEL BASE CONTROL UNIT SCREW BOLT 3places ...

Page 158: ...10 41 8 DRAIN PAN removal Remove the DRAIN PAN ASSY DRAIN PAN ASSY ...

Page 159: ...the TURBO FAN ASSY M8 NUT Washer TURBO FAN TURBO FAN ASSY M8 NUT Washer TURBO FAN TURBO FAN ASSY The M8 special NUT should be tightened with a torque of 1 96 7 84 N m The M8 special NUT should be tightened with a torque of 1 96 7 84 N m For AU 24LUAR For AU 30 36 45 54LUAS ...

Page 160: ...ove the FAN MOTOR ASSY Remove the 4 mounting nuts Remove the FAN MOTOR ASSY Special NUT M6 3 places Special NUT M6 4 places Rubber Vibration proof A 3 places Rubber Vibration proof B 3 places FAN MOTOR ASSY FAN MOTOR ASSY For AU 24LUAR For AU 36 36 45 54LUAS ...

Page 161: ...10 44 11 DRAIN PUMP removal Remove the 2 mounting screws Remove the DRAIN PUMP UNIT DRAIN PUMP UNIT DRAIN HOSE ...

Page 162: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Apr 2006 Printed in Japan ...

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