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AYXP12JHRN

2 – 3

[2] MICROCOMPUTER CONTROL SYSTEM

1. Indoor unit

1.1. Electronic control circuit diagram

LED

301

R318

180

1W

FULL

POWER

OUTDOOR

TEMP

LED

304

LED

302

LED

303

R317

360

1W

R316

100

1W

R315

100

1W

RED

YELLOW

GREEN

SG301

OPERATION

TIMER

GREEN

1W560

f2

b2

CO

M

2

CO

M

1

12

13

15

14

3

2

1

16

4

a1

b1

c1

d1

e1

f1

g1

g2

g1

f1

e2

e1

d2

d1

c2

c1

b1

a2

a1

R304

R305

R306

R307

R308

R309

R310

1W

560

1

2

3

4

5

6

7

8

9

10

g2

f2

e2

d2

c2

b2

a2

8

11

5

6

7

9

10

BCN301

1W

180

1W

180

1W

560

1W

180

1W

180

R128

1K

TERMINAL

BO

ARD

3P

DC

FA

N

MO

TO

R

AU

TO

REST

A

RT

SELECT

0.01uF

250Vx2

275V

0.1uF

C12A

C12B

275V0.1uF

NC

NC

NC

CLUSTER

BCN602

0.1uF

47uF

50V

1000p

10.0KF

47K

25V

10V

100uF

25V

47K

CN90

1000p

0.1uF

0.1uF

0.1uF

0.1uF

0.1uF 
0.1uF 
0.1uF

0.1uF 
0.1uF

1uF

P83 
P82 
P81 
P80

P05 
P06 
P70 
P71 
P72 
P73 
P74 
P75 
P76 
P77 
P67 
P66 
P65 
P64 
P31 
P63 
P62 
P61 
P60

VDD1

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

80

79

78

77

76

75

74

73

72

71

70

69

68

67

66

65

P140

P141

P142

P143

P144

P145

64

63

62

61

60

59

58

57

56

55

54

53

52

51

P00

P01

P02

P03

P04

P131

P130

P20

P21

P22

P23

P24

P25

P26

P27

P150

P151

P152

P153

P154

P155

P156

P157

AVSS

VSS1

P30 
P87 
P86 
P85 
P84

0.01uF

25V 
25V 
25V

25V 
25V

0.1uF

0.01uF

0.01uF

NC

0.1uF

100uF

10V

4.7K

4.7K

1K

R93

100K

C90

R90

7.5K

4.7K

4.7K

10K

10K

6.8KF

0.1u

50V

100u

35V

25V

0.1u

1M

1/4W

3.3K

910x2

WIRELESS

47K

4.7Kx2

POWER

MODEL

BZ1

1/4W

1.8K

KRC108S

KRC108S

NF1

D1N60

11K

2W

4.7K

56K

TEST

4.7K

4.7K

CLUSTER

4.7K

4.7K

6.8KF

3.3K

3.3K

6.8K

56K

16V47uF

10K

6.8K

R6

R7

100K

R8

R17

R19

R18

R29

R31

R32

R34

R37

R36

R71

R76

R77

R78

R80

R81

R86

R88

R95

R96

R100

R101

R108

R109

R110

R111

R112

R114

10KF

D2

R105

R107

ZD1H

Z24-2

C135V100uF

C235V0.047uF

C350V0.01uF

C15

C16

C17

C18

C41 
C42 
C43

C44 
C45 
C46

C58

C59

C62

Q13

Q14

Q15

47K

JP8

JP9

JPW

R118

R119

R120

R40

DB1

D2SBA60

1/2W

1MX2

1K

1K

R85

R84

R41

1/2W

1M

C12

275V0.1uF

NR1

R27

R26

C5

0.01u

250V

R9

Q11

KRC106S

R97

4.7K

25V 0.1uF

C13

R38

100K

R39

16V

C301

C302

R83

10K

D4

D1N60

39K

R28

1/2W

200K

1/2W

200K

R94

1K

C61

0.1uF

KRC108S

1/4W

R302

R303

LED310

3.6Kx2

R121

10K

25V

4.7uF

C60

R11

R10

2.7K

KID65004AF

NC

0.1uF

1000pF

C65 
C66

50V

1000p

0.1uF

0.1uF

25V

25V

47K

C402

C401

25V

16V

KID65004AF

KID65004AF

25V

0.1uF

47uF

KID65004AF

KID65004AF

KID65783AF

C67

R116

10K

R127

4.7K

4.7K

47K

JP1

47K

R125

KID65004AF

10KF

2W

11K

JP2

NC

NC

CN1

2

1

6

4

4

5

1

1

OSC1

8MHz

5V

10K

9

50V

50V

10V

P110

P50

AV

R1

AV

R0

P111

P51

P52

P53

P54

P55

P56

P57

P17

P16

P15

P14

P13

P12

P11

P10

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

100

P120

P47

P46

P45

P44

P43

P42

P41

P40

REST

P124

P123

FLMD

X2

X1

REGC

VS

S

VSS0

VDD

VDD0

25V

25V

25V

25V

25V

50V

50V

NC

25V

NC

106S

KRC

4

3

1

2

R92

470

5.1K

R91

HAJP

12V

KIA7815

5V

5V

1K

5V

5V

12V

SW401

SAFET

Y

SW

0.01uF

50V

2

1

PC81716NIP

1

Vs

Vcc

2

7

Vm

GND

5

3

PG

1

1

2

3

4

4

D1N60

2

N

1

2W

10K

1

2

3

4

5

GND

RESET

TOOL0

FLMD0

1

2

3

680

4

PC817XP3

3

1

3

2

PC817XP3

4

4

1

2

8.2K

680

TH1

PIPE

TEMP

TH2

R33

R35

R57

R70

R73

R79

R98

R99

R102

R113

R117

D1

ROOM

TEMP

IC1

1K

1K

1K

R106

R104

PC4

PC5

PC6

PC7

CN3

C14

C40

C47

C48

C49

C50

C51

C52

C53

C54

C55

C56

Q2

IC13

IC5

10K

KR

A224S

R63

8

CN1

NT

C1

10D

SSR1

PR32MA11NXPF

R16

R1

3.3K

3.15A-250V

FU1

TOOL1

VDD

5V

2M

R74

R75

1K

9

8

8

9

IC9

Q10

12V

IC11

CN18

IC12

12V

R82

10K

1

2

PC817XP3

4

3

PC1

PC817XP3

SERIAL

SIGNAL

CIRCUIT

PC853HXP

3

2

PC2

+

R301

IC301

5V

CN17

CN10

47

BCN10

CN11

BCN302

PC

73

82

91

10

6

12

8

10

9

8

7

6

5

4

3

2

1

1

3

4

5

6

7

8

7

6

5

4

3

1

8

12345678

9

8

IC7

R122

R124

R123

10K

10K

10K

6

TXD0

RXD0

5

4

3

2

1

BL

UE

S

C

B

A

5V

2

2

8

7

6

5

4

3

2

1

1

2

3

4

5

6

7

8

9

10

8

6

1

2

3

11

7

7

C68

50V

PA

N

EL

SW1

SW2

PA

N

EL

1

2

5V

2

3

4

1

2

3

4

1

47

IC401

R401

+

9

8

7

6

5

4

3

2

1

5

4

3

2

1

LO

UVER

M

H

THERMIST

O

R

THERMIST

O

R

IC8

6

CN13

CN14

CN15

CN16

BCN401

CN15

R134

R132

R135

R133

5V

BR

BK

WH

RD

1K

1K

13

99

5V

D18

5

5

6

5

4

3

2

1

CN17

FLASH

11

9

10

5V

10

9

11

2

1

2

1

2

1

CN608

CN609

BCN604

10

9

8

7

6

5

4

3

2

1

5V

13

11

12

10

9

8

7

12V

5V

BCN602

BCN601

CN601

CN602

CN603

CN19

12345

IC14

9

8

12345678

9

8

7

6

5

4

3

2

1

CN15

CN14

6

6

5

4

3

2

1

HANG

M

R

HANG

M

L

5

4

3

2

1

123456789

8

7

6

5

4

3

2

1

12345

PANEL

M

L

PANEL

M

R

1

2

345

BCN603

BCN604

CN604

CN605

CN606

CN607

4.3KF

R129

10K

1W

100K

BL

UE

R137

680

E

C7

C8

C6

G(

Y

)

10KF

Q3

KRA106S

R51

2.7K

R52

1.5K

R89

2.2M

R72

6.8K

R61

3.3K

R64

3.3K

R136

56K

IC3

KIA431

R54

10KF

R49

220

C30

220uF

10V

C23

10uF

16V

C29

1000uF

25V

PC8

PC817x3

R43

47

R42

120K

1/2W

C21

1000pF

1KV

D10

RU2CV1

D5

D1FL20U

R45

3.3

C19

100uF

50V

C24

47uF

16V

D8

D1FL20U

D7

S3L20U

ZD3

HZ27-2

C20

120uF

450V

R48

100K

C31

0.1uF

50V

R50

100K

R87

1.5M

PC817XP3

19V

R53

10KF

IC2

TOP258PN

C22

0.1uF

50V

R46

12V

PC8

CO

N

TR

O

L

4

2

1

M

C

D

S

S

S

S

8

7

6

5

5V

11

13

7

8

5

15

14

12

10

9

4

3

2

TR1

R44

10

220

16

6

C25

0.01uF

50V

12V

275V

0.1uF

Summary of Contents for AE-X12JR-N

Page 1: ...ISTICS 3 5 4 HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY 3 6 5 GENERAL TROUBLESHOOTING CHART 3 6 6 MALFUNCTION PARTS CHECK METH OD 3 8 7 OUTDOOR UNIT CHECK METHOD 3 10 8 TROUBLESHOOTING GUIDE 3 13 CHAPTER 4 REFRIGERATION CYCLE 1 FLOW FOW REFRIGERANT 4 1 2 STANDARD CONDITION 4 1 3 TEMPERATURE AT EACH PART AND PRESSURE IN 3 WAY VALVE 4 1 4 PERFORMANCE CURVES 4 2 CHAPTER 5 DISASSEMBLING PROCEDURE 1...

Page 2: ...ally sealed rotary type Model DA111A1F22F Oil charge 450cc Ester oil VG74 Refrigerant system Evaporator Louver Fin and Grooved tube type Condenser Corrugate Fin and Grooved tube type Control Expansion valve Refrigerant R410A 1140g De lce system Micro computer controled reversed systems Noise level at cooling heating High dB A 40 47 Low dB A Soft dB A 27 Fan system Drive Direct drive Air flow quant...

Page 3: ...AYXP12JHRN 1 2 2 EXTERNAL DIMENSION 1 Indoor unit 2 Outdoor unit 㧔Unit㧦㨙㨙㧕 798 260 290 22 0 58 18 5 175 INVERTER AIR CONDITIONER 265 780 540 14 167 5 165 540 299 72 58 37 5 12 4 5 324 135 81 136 ...

Page 4: ...MLB395 DC Motor Indoor fan motor capacitor Transformer FUSE1 QFS GA078JBZZ 250V 3 15A DESCRIPTION MODEL REMARKS Compressor DA111A1F22F D C brush less motor Outdoor fan motor MLB078 DC Motor Outdoor fan motor capacitor Fu4 QFS GA064JBZZ 250V 1A Fu3 QFS GA051JBZZ 250V 2A Fu2 QFS GA052JBZZ 250V 3 15A Fu1 QFS CA001JBZZ 250V 20A Fu5 6 QFS CA002JBZZ 250V 15A ...

Page 5: ...n circuit Cluster generator drive circuit Indoor fan motor Fan motor pulse detect Wireless remote control operation Audible operation confirmation Room temp thermistor Heat exchanger pipe thermistor Louvre angle fan speed Wireless preheat Model select Indoor outdoor control signal I O Test run forced operation Auxiliary mode button ON OFF Self diagnostics fault diagnosis Cluster generator Unit uni...

Page 6: ... CPU reset circuit Position detection circuit AC overcurrent detection circuit Compressor thermo circuit Heat exchanger pipe thermo circuit Outdoor temp thermo circuit LED drive circuit Test mode circuit Power factor converter circuit Filter circuit Smoothing circuit Pulse amplitube modulation circuit EEPROM AC clock circuit DC overcurrent detection circuit IGBT Unit unit wiring AC power and seria...

Page 7: ...04AF 10KF 2W 11K JP2 NC NC CN1 2 1 6 4 4 5 1 1 OSC1 8MHz 5V 10K 9 50V 50V 10V P110 P50 AVR1 AVR0 P111 P51 P52 P53 P54 P55 P56 P57 P17 P16 P15 P14 P13 P12 P11 P10 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 100 P120 P47 P46 P45 P44 P43 P42 P41 P40 REST P124 P123 FLMD X2 X1 REGC VSS VSS0 VDD VDD0 25V 25V 25V 25V 25V 50V 50V NC ...

Page 8: ...a1 R304 R305 R306 R307 R308 R309 R310 1W 620 1 2 3 4 5 6 7 8 9 10 g2 f2 e2 d2 c2 b2 a2 8 11 5 6 7 9 10 BCN301 1W 220 1W 220 1W 620 1W 220 1W 220 0 1uF 47uF 16V C301 C302 1 4W R302 R303 LED310 7 5Kx2 C402 C401 25V 16V 25V 0 1uF 47uF SW401 SAFETY SW CN18 R301 IC301 CN17 47 BCN302 PC 7 3 8 2 9 1 10 6 12 8 10 9 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 8 6 1 2 3 11 7 7 2 3 4 1 2 3 4 1 47 IC401 R401 BCN401 ...

Page 9: ... For JHR N model main PWB For JHR N model sensor PWB From cluster unit From fan motor From horizontal louver motor From pipe thermistor relay connector From sensor PWB To main PWB To vertical louver motor left To vertical louver motor right ...

Page 10: ...model display PWB To main PWB To main PWB To main PWB To main PWB From hang motor left From panel motor left From panel SW left From panel SW right From panel motor right From hang motor right From display PWB black From display PWB yellow To connection PWB ...

Page 11: ...㧝 㧯㧠㧥 㧜㧚㧝Ǵ 㧜㧚㧝Ǵ 㧜㧚㧝Ǵ 㧜㧚㧝Ǵ 㧝㧜㧜Ǵ 㧝㧜㨂 㧯㧠㧣 㧜㨂 㧯㧠㧢 㧝㧜㧜㧜㧼 㧡㨂 㧾㧠㧡 㧝㧜㧷 㧾㧠㧢 㧯㧠㧤 㧜㧚㧝Ǵ 㧝㧷 㧯㧠㧡 㧜㨂 㧰㧝㧝 㧟㧟㧜Ǵ 㧝㧡㨂 㧡 㧝㧛㧠㨃 㧟㧟 㧞 㧟㧟 㧞 㧝㧛㧠㨃 㧝㧠 㧝㧢 㧝㧞 㧝㧝 㧝㧜 㧝㧟 㧝㧣 㧣 㧞㧝 㧠 㧢 㧞㧞 㧟 㧤 㧞㧟 㧞 㨂㧼㧯 㧵㧼㧹 㧞㧡㨂 㧯㧟㧣 㧝㧜㧜Ǵ 㧞㧡㨂 㧞㧡㨂 㧯㧡㧠 㧝㧜㧜Ǵ 㧞㧡㨂 㧰㧥 㧰㧝㧜 㧝㧜㧜Ǵ 㧯㧡㧞 㧰㧤 㧯㧡㧜 㨂㨃㧲㧮 㨂㨁㧲㧿 㨂㨁㧲㧮 㨃㧺 㨂㧺 㨁㧺 㨃㧼 㨂㨃㧲㧿 㨂㧼㧵 㨂㧼 㨂㨂㧲㧿 㨂㨂㧲㧮 㨁㧼 㨂㧺㧯 㧲㧜 㨂㧺㧵 㧯㧠㧟 㧯㧠㧠 㨆㧰㧠 㨁 㨄 㨂 㨅 㨆 㧜㧚㧜㧝Ǵ 㨃 㧜㧚㧝Ǵ 㧯㧝㧞㧠 㧵㧯㧡 㧞 㧝 㧟 㧜㨂㧙㧼 㧾㧞㧠 㧞㧞㧷 㧾㧞㧝 㧜㨂 㧡㨂 㧵㧯㧠 㧝㨃 㧾㧞㧣 㧵㧯㧟 㧜㧚㧝Ǵ 㧯㧤㧡 㧝㧤㨂㧙㧼 㧢㧤 㧣㧤㧜...

Page 12: ...rom Compressor C White From Compressor S Red To Reactor Gray From Fan Motor To Reactor Gray From 4 Way Valve From Expansion Valve From Thermistor To Terminal Board 1 Brown To Terminal Board N Blue To Control Box Green Yellow To Terminal Board 2 Red From Terminal Board ...

Page 13: ... seconds at minimum operating fre quency the compressor stops operating and then restarts after about 180 seconds and the abovementioned control is repeated 1 6 Outdoor unit overheat prevention control During cooling operation if the temperature of the outdoor unit heat exchanger exceeds the outdoor unit heat exchanger overheat preven tion temperature about 55 C the operating frequency is decrease...

Page 14: ...oling or heating mode which is determined automatically by the room temper ature sensor When a circuit breaker is used to control the ON OFF operation please insert a jumper as described above 1 15 Self diagnostic malfunction code display 1 15 1 Indoor unit 1 When a malfunction is confirmed a flashing malfunction code num ber is displayed to indicate the type of malfunction When the air conditione...

Page 15: ... manually Manual adjustment of the open panel and the louvres can cause the unit to malfunction 1 TIPS ABOUT AIR FLOW DIRECTION AUTO COOL mode The open panel will be set obliquely downward for 10 minutes and then shift to obliquely upward to deliver cool air to the ceiling HEAT mode The open panel will be set obliquely backward when outlet air tempera ture is low and then shift to obliquely downwa...

Page 16: ...ing the remote control 1 22 Hot keep If the room temperature is in the Hot keep zone during heating the compressor is turned off to prevent overheating 1 23 Winter cool Cooling operation is available during the winter season by the built in winter cool function Lower limit of outdoor temperature range is 10 C DB When the outside air temperature is low the outdoor unit fan operates at slower speed ...

Page 17: ...ges the energy electromotive force generated by the reactor to the electrolytic capacitor for the inverter by turning ON and OFF When the IGBT is ON an electric current flows to the IGBT via the reactor L5 and diode bridge DB2 When the IGBT turns OFF the energy stored while the IGBT was ON is charged to the voltage doubler capacitor via the diode bridge DB1 As such by varying the ON OFF duty of th...

Page 18: ...the diagram above 3 2 3 IGBT ON start time delay time B Based on the zero cross of the AC voltage the IGBT turns ON after a delay time set according to the power source frequency 3 2 4 IGBT ON time C After the above delay time the IGBT turns ON to supply a current to the reactor The ON time of the IGBT determines the amount of energy level of DC voltage rise supplied to the reactor DC voltage leve...

Page 19: ...n the error code is called out by the indoor unit s self diagnosis function The LED on the outdoor unit flashes 14 times when an error is generated The LED continues flashing in the 14 time cycle even after the compressor stops operating The LED turns off data is deleted from the memory when the outdoor unit power is turned off In case of error 2 An error signal is sent to the indoor unit as soon ...

Page 20: ...it board PCB 4 1 1 Brief explanation of bootstrap system single power drive system To supply power to the upper phase IC the microcomputer IC1 turns ON the lower phase IGBT LU LV LW This results in a charging current that flows to the electrolytic capacitor of each upper phase IC input and charges the bootstrap capacitor with a 15 V current The power supply for the subsequent stages is charged whi...

Page 21: ...utput of more then 20μs is generated from IPM Fo pin 14 and this results in an L input to overcurrent detection input pin 34 of the microcomputer IC1 and turns OFF the PWM signal output IC1 pins 51 through 56 to the IGBT gate SET RESET About 25 A SC SC reference voltage Delay by CR time constant circuit More than 20ǴU a1 Protection circuit status Output current Ic A Sense voltage relative to shunt...

Page 22: ...ing sensor less operation at low rotation speed in the ini tial stage of operation This reduces the starting current and improves the IPM reliability 6 180 Energizing Control This is the control system to moderate the speed by the current phase difference for higher efficiency and lower noise of the compressor The current phase difference control is the control system paid attention to the interre...

Page 23: ...eds overheat tem perature during heating operation Compressor stops if indoor unit heat exchanger temperature exceeds overheat temperature for 60 seconds at minimum fre quency Overheat temperature setting value indoor unit heat exchanger thermistor temperature about 45 to 54 C When in heating operation Automatic reset after safety period 180 sec None Yes Yes 5 Outdoor unit heat exchanger over heat...

Page 24: ...istor TH3 At compressor star tup Operation OFF or ON Yes 1 Yes Yes 17 Outdoor unit suction thermistor short cir cuit error Compressor stops if there is short circuit in outdoor unit suc tion thermistor TH4 At compressor star tup Operation OFF or ON Yes 1 Yes Yes 18 Outdoor unit 2 way valve thermistor short circuit error Compressor stops if there is short circuit in outdoor unit 2 way valve thermis...

Page 25: ...t Room tempera ture thermistor TH1 Auto Operation mode judgment Cooling mode is activated even if room tempera ture is low Cooling mode is activated in most cases Heating mode is activated even if room tempera ture is high Heating mode is always activated Cooling Frequency control Room becomes too cold Air conditioner operates in full power even when set temperature is reached Room does not become...

Page 26: ...uit error indication Cooling Dehumidifying Operation not affected Normal operation Outdoor unit ther mistor short cir cuit error indication Normal operation Outdoor unit ther mistor open cir cuit error indication Heating Rating control Defrosting Defrosting opera tion is activated unnecessarily Outdoor unit ther mistor short cir cuit error indication Defrosting opera tion is not acti vated and fro...

Page 27: ...431 k TH1 Tester CN11 1 2 TH2 TH2 TH5 500K 400K 300K 200K 100K 0 20 0 20 60 80 100 120 Tester 1 10 Connector CN8 Resistance at 25 52 76 k 5 8K 40K 30K 20K 0 10K 20 0 20 60 40 3 06K 4 17K 1 72K 2 28K Tester In case of TH2 heat exchanger thermistor 1 10 Connector CN8 Thermistor Compressor thermistor Heat exchanger thermistor Outdoor air temperature thermistor Suction thermistor 2 way valve thermisto...

Page 28: ... mode Check operation mode Fan speed should change except during dehumidifying operation ventilation light dehumidifying operation internally normal oper ation Explain to user Main cause Inspection method Normal value condition Remedy Batteries at end of service life Measure battery voltage 2 5 V or higher two batteries in series connection Install new batteries Batteries installed incorrectly Che...

Page 29: ...ed by noise Move TV radio away from outdoor unit Other than above Check for radio wave interfer ence Main cause Inspection method Normal value condition Remedy Malfunction caused by noise Check for radio wave interfer ence Main cause Inspection method Normal value condition Remedy Erroneous inter unit connection Check wiring between indoor and outdoor units Terminal board 1 N 220 240 VAC 50 Hz Ter...

Page 30: ...cord to AC outlet Normal Using remote control operate air conditioner so that compressor starts Check 220 240 VAC between 1 and N on outdoor unit PCB Is LED1 on outdoor unit flashing Compressor starts up Does LED1 indicate DC overcurrent error Does LED1 indicate rotation error Replace compressor Does LED1 remain lit Serial signal error Check inter unit wiring Check indoor and outdoor unit PWBs Rep...

Page 31: ...hen polarities are reversed When measurement is taken with the polarities reversed the tester needle exceeds the scale range Therefore let the capacitor discharge before measurement Measure resistance in expansion valve coil Normal resistance between red terminal of expansion valve lead wire and each terminal about 46 at 20 Insert checker shown at left into connector CN12 on control PWB and operat...

Page 32: ...e type tester Normal resistance value P N several MΩ U V W Needle type tester Normal resistance value U N several MΩ V W No Item Check method Normal value condition Remedy 1 Preparation Disconnect compressor cords white orange red 3 wires from compres sor terminals and connect simulated load lamp used as load Operate air conditioner in cooling or heating test operation mode 2 Inverter DC power sup...

Page 33: ...ssor should operate nor mally 320 VDC or higher Replace control PWB Replace outdoor unit thermistor Replace compressor in case of compressor lock No Item Check method Normal value condition Remedy Does LED light NO YES NO Does LED flash Normal NO YES YES NO YES NO YES Check 320VDC between IPM pins 20 and 24 Short circuit in DC fan motor Short circuit in IPM Short circuit in diode bridge Blown fuse...

Page 34: ...o the tester to cause damage If the sheaths of the thermistor lead wires or expansion valve lead wires inside the outdoor unit become damaged due to pinching by the front panel or other metal parts or contacting a pipe a high voltage can flow and destroy the circuits To prevent these problems carefully conduct assembly work Terminal board Ground 0 V line Point F Point E Reactor IPM Compressor moto...

Page 35: ... to 10 minutes after self diagnosis is performed during operation and the display returns to normal condition after this display period The content of self diagnosis cannot be called out by the self diagnosis display function of the outdoor unit Example of self diagnosis display on outdoor unit Compressor high temperature error c The content of diagnosis is transferred to the indoor unit via seria...

Page 36: ... tection 4 Temporary stop due to 2 way valve freeze 3 Temporary stop for cycle pro tection Indoor unit in operation Outdoor unit in tempo rary stop 3 times 3 0 Dry operation Temporary stop due to dehumidifying operation 3 Temporary stop for cycle pro tection Indoor outdoor units in complete shutdown 5 times 5 0 Outdoor unit thermistor open circuit Heat exchanger thermistor open cir cuit error 1 Ch...

Page 37: ...oor unit fan motor 3 AC current defi ciency error 1 Check if there is an open circuit in the secondary winding of the current transformer of the outdoor unit control PWB 1 Replace the outdoor unit control PWB assembly 2 Check if the refrigerant volume is abnormally low 2 Charge the specified amount of refrigerant 3 Check if the refrigerant flows properly 3 Correct refrigerant clogs 2 way valve 3 w...

Page 38: ...essor startup error 1 Check the colors red white orange of the com pressor cords for proper connection PWB side compressor side 1 Correct the installa tion U Red V White W Orange 1 Compressor rota tion error 120 energizing error 2 Check if the IPM terminal resistance values are uni form 2 Replace the outdoor unit control PWB assembly 3 No abnormality found in above inspections 1 and 2 3 Replace th...

Page 39: ... indoor fan motor for proper rotating operation Check fan lock 1 Replace the indoor fan motor 2 Check the lead wire of the indoor fan motor for open circuit 2 Replace the indoor fan motor 3 Check CN1 of the indoor unit fan motor for secure installation 3 Correct the installa tion of CN1 of the indoor fan motor 4 No abnormality found in above inspections 1 through 3 4 Replace the indoor unit contro...

Page 40: ...lay None Displays 18 0 when malfunction code is called out 3 Malfunction diagnosis display None Displays 18 0 when malfunction code is called out 4 Malfunction diagnosis display 18 1 5 Malfunction diagnosis display 18 1 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1 N 2 Indoor unit Outdoor unit 1 N 2 1...

Page 41: ...b Temp C Relative Humidity Dry bulb Temp C Relative Humidity Cooling 27 47 35 40 Heating 20 7 87 Model AY XP12JHR N NO Condition Cooling Heating Temp on C 67 56 Temp on C 37 3 Temp on C 14 22 Temp on C 17 5 3 way valve pressure MPaG 1 00 2 09 s 1 4 C 2 Accumulator 3 Strainer Expansion valve Heating Cooling Outdoor unit Condenser Evaporator Indoor unit Reverse valve Comp ressor Flare coupling Flare...

Page 42: ...ng 20 C 4 Power source 230V 50Hz 1 AY XP12JHR N 1 1 At Cooling 1 2 At Heating 700 800 900 1000 1100 20 25 30 35 40 45 Outside air temp C Input W Outside air temp 䋨㷄䋩 Cooling capacity kW 㪊㪅㪉 㪊㪅㪋 㪊㪅㪍 㪊㪅㪏 㪋㪅㪇 㪉㪇 㪉㪌 㪊㪇 㪊㪌 㪋㪇 㪋㪌 Outside air temp 㷄 Input 䌗 㪏㪇㪇 㪐㪇㪇 㪈㪇㪇㪇 㪈㪈㪇㪇 㪈㪉㪇㪇 㪄㪈㪇 㪄㪌 㪇 㪌 㪈㪇 㪈㪌 Outside air temp 䋨㷄䋩 Heating capacity kW 㪊㪅㪇 㪊㪅㪌 㪋㪅㪇 㪋㪅㪌 㪌㪅㪇 㪄㪈㪇 㪄㪌 㪇 㪌 㪈㪇 㪈㪌 ...

Page 43: ...ady to hand Welding and brazing shall be carried out by qualified workmen 1 DISASSEMBLY OF INDOOR UNIT Be sure to disconnect the power cord from the AC power outlet before starting the disassembly procedure When reassembling the unit after repair ing be sure to install screws to their original positions The screws used are not the same in specifications such as corrosion resistant treatment tip sh...

Page 44: ... front panel on are removed 10 Front panel is pulled to front this side and removed 11 The tapes that is the fixation of the lead wire is peeled off 12 The panel base is drawn out forward both sides 13 The gear is turned and the panel base is removed For a minus screw driver etc 14 The pin that is the fixation of the panel base and the link is removed ...

Page 45: ...he cover of the display printed boad is removed 18 The display panel is removed 19 The display printed boad is removed Hook three places 20 The panel mechanism cover is removed 3 screws 21 The screw that is the fixation of the panel motor is removed and is turned to the left and it is removed 22 The gear the crank and the arm are removed ...

Page 46: ...ok one place 25 The limit switch is removed 26 The reception part is removed Hook two places 27 The reception cover is removed 28 The fixing band of the sub printed boad assembly is cut 29 The sub printed boad assembly is removed 2 screws 30 Five connectors are removed from sub printed boad ...

Page 47: ...d is removed Hook two places 33 A fixed screw for P W B box cover is removed 34 Hook is removed by handling a minus driver 35 The P W B box cover is removed 36 The fixing band in the P W B assembly is cut 4 parts 37 The connectors in nine places are removed 38 The Terminal board removed 1 screw ...

Page 48: ...e removed by using screwdriver 42 After the plasmacluster that removes the PC cover is taken out the wire connector is removed 43 Six screws for the fixation of the air filter cleaning mechanism assembly is removed 44 Air filter cleaning mechanism assembly is pulled forward and removed 45 The limit switch cover is removed 46 The limit switch is removed Hook one place ...

Page 49: ...49 The relay printed bord holder removed 2 screws 50 P W B assmbly is removed 2 screws 51 The earth cable is removed 1 earth screw 52 The P W B assembly is drawn out forward 53 The Terminal cover of the Terminal stand assembly is removed Hook two places 54 The P W B box cover is removed Hook one place And the con trol bord unit is removed ...

Page 50: ... evaporator fixation right side are removed 58 One screw for the drain pan fixation right side is removed 59 The drain pan is detached 60 Four fixed screws of the vertical direction louver stand assembly removed 61 Driving motor of the vertical direction louver stand assembly is removed 2 screws 62 The bearing holder is removed 1 screw ...

Page 51: ... 9 63 The cross flow fan fixation screw is loosened 64 The two screws for the fan motor cover fixation are removed 65 The cross flow fan is pulled out at the left of the unit and it removes 66 Fan motor is removed ...

Page 52: ...ight hand side of top plate ass y is removed 3 The 2 screws on the left hand side of top plate ass y is removed 4 The screw on the right hand side of front panel is removed 5 The screw on the right hand side of front panel is removed 6 The 4 screws of the front of a front panel is removed 7 The 5 screws on the right hand side of side cover R is removed ...

Page 53: ... the side cover L and side cover R back is removed 10 The connectors in the control box BOX and reactor is removed 11 A control box BOX fixed 2 screws is removed 12 A bulkhead plate fixed 2 screws is removed 13 The compressor covers 1 2 removed 14 A nut is removed and a terminal cover is removed 2 1 ...

Page 54: ...s removed 19 The fixed 2 screws of a motor angle is removed Disassembly of Heater CHET A025JBKZ Unit 1 Cut the band fixing the bi metal thermostat 2 Powercord for bi metal thermostat 3 Cut the band which holds together the thermistor cords and power cord for bi metal thermostat 4 Remove screw NK 8K 5 Pull out the heater wire from beneath the heat exchanger 1 2 4 5 ...

Page 55: ...SPLIT TYPE ROOM AIR CONDITIONERS OUTDOOR UNIT AE X12JR N In the interests of user safety Required by safety regulations in some countries the set should be restored to its original condition and only parts identical to those specified should be used INDOOR UNIT AY XP12JHR N MODELS PartsGuide 1 INDOOR UNIT PARTS 2 Panel opening and shutting mechanism R Assembly 3 Panel opening and shutting mechanis...

Page 56: ...10 3 42 10 1 3 62 3 5 3 53 1 25 1 26 1 24 3 65 3 15 7 2 1 7 3 20 3 68 3 27 3 66 1 28 1 1 3 71 3 35 3 36 1 8 3 18 3 19 3 3 1 12 3 4 3 48 6 1 3 54 1 6 3 37 3 17 3 17 3 16 3 16 3 41 3 64 7 3 3 67 1 27 3 31 3 33 3 33 3 32 3 32 3 59 3 58 3 61 3 63 3 61 3 63 1 20 5 3 5 0 5 1 3 72 1 4 5 9 5 10 8 15 8 14 8 22 8 27 8 28 8 29 8 30 3 21 3 22 1 29 2 19 3 40 10 5 3 14 2 5A 5 2 5B 5 3 23 ...

Page 57: ...ATOR B 3 23 PFPFPD549JBEZ LOUVER INSULATOR C 3 27 CHLD A139JBKZ BEARING ASS Y 3 31 CPNL A631JBKZ PANEL ASS Y 3 32 JBTN A012JBFA PANEL BOTTOM 3 33 MSPR A188JBEZ SPLING 3 35 PHOS A052JBEZ DRAIN HOSE 3 36 LPLT A058JBPZ HOSE HOLDAR 3 37 CSRA A715JBKZ DRAIN PAN SUB ASS Y 2 5A 5 GGAD A069JBTA WIRE GUARD 2 5B 5 GGAD A072JBTA WIRE GUARD R 3 38 MLOV A503JBFB AIR FLOW LOUVER 3 39 NBRG A038JBFA BEARING C 3 4...

Page 58: ...SULATOR 6 1 QW VZF947JBZZ LEAD WIRE for PC unit 7 2 DPLT A083JBKZ MOUNTING ANGLE ASS Y 7 3 PPLTNA118JBWZ PIPE GAUGE 8 14 CGID A047JBKZ FILTER GUIDE KJH 8 15 CGID A045JBKZ FILTER GUIDE K 8 22 LHLD A995JBFZ THERMISTOR HOLDER 8 27 LHLD A991JBFA GUIDE STRONG 8 28 PGID A167JBFA FILTER GUIDE L 8 29 PGID A168JBFA FILTER GUIDE R 8 30 PGID A169JBFA FILTER GUIDE C 1 INDOOR UNIT PARTS ...

Page 59: ...MA GEAR C 2 5 MCAMPA010JBFZ CAM R 2 6 NGER A040JBEZ GEAR 24 2 7 NGER A041JBEZ GEAR 35 2 8 NSFT A047JBFZ HOOK ARM 2 9 PCAS A076JBFA CASE RC 2 10 PCAS A077JBFA CASE RA 2 11 PCAS A078JBFA CASE RB 2 12 QSW MA013JBZZ SWITCH 2 13 RMOT A164JBZZ STEPPING MOTOR 2 14 RMOT A172JBZZ STEPPING MOTOR 2 16 MCAMPA012JBFZ CAM 2 17 NBRGPA001JBEZ BEARING 2 18 QW VZF950JBZZ LEAD WIRE 2 19 XTPS723P12000 TAPPING SCREW 2...

Page 60: ... 2 23 LPIN A009JBEZ PiIN 2 24 MARMPA067JBMA GEAR C 2 26 MCAMPA012JBFZ CAM 2 27 MCAMPA013JBFZ CAM L 2 28 NGER A041JBEZ GEAR 35 2 29 NSFT A047JBFZ HOOK ARM 2 30 PCAS A079JBFA CASE LC 2 31 PCAS A080JBFA CASE LA 2 32 PCAS A081JBFA CASE LB 2 33 QSW MA013JBZZ SWITCH 2 34 QW VZF949JBZZ LEAD WIRE 2 36 NBRGPA001JBEZ BEARING 2 37 NGER A040JBEZ GEAR 24 2 38 RMOT A167JBZZ STEPPING MOTOR 2 39 RMOT A173JBZZ STE...

Page 61: ...70JBKZ FLERE NUT ASS Y 3 8 5 1 5 PSEN A071JBKZ FLERE NUT ASS Y 1 4 10 2 TLAB D386JBRZ ERROR CODE LABEL 10 3 TLAB D387JBRZ URGENT LABEL 10 4 TLAB D388JBRZ SERVICE LABEL 10 5 TLAB D472JBEZ EU ENERGY LABEL 11 5 LX BZA075JBE0 SPECIAL SCREW 11 8 XTPS723P14000 SCREW 11 9 XTPS730P10000 SCREW 11 10 XTPS740P08000 SCREW 11 11 XTPS740P12000 SCREW 11 12 XTPS740P14000 SCREW 11 14 XTTS740P10000 SCREW 11 15 XTTS...

Page 62: ... CODE PRICE RANK NEW MARK PART RANK DESCRIPTION 6 INDOOR PACKING PARTS 9 1 SPAKCC558JBEZ PACKING CASE 9 2 SPADBA448JBEZ PAD R 9 3 SPADBA449JBEZ PAD L 9 4 SPADBA462JBEZ CABI PAD 9 5 SSAKAA106JBEZ BAG 9 6 SPAKCJ944YDEZ CASE 9 3 9 2 9 1 9 4 9 5 9 6 ...

Page 63: ...3 1 2 32 3 20 2 15 2 16 3 2 2 4 2 4 1 1 2 2 2 7 3 6 3 9 3 7 2 21 3 8 2 56 2 36 2 5 2 45 2 22 2 9 2 10 2 11 1 2 7 1 2 6 2 8 1 2 2 37 2 39 2 38 1 6 2 12 1 7 3 15 2 23 3 14 3 13 2 42 2 40 2 41 3 17 1 5 3 18 3 19 2 43 2 44 2 3 1 12 2 39 2 2 39 6 2 39 7 2 48 2 2 48 1 2 47 1 2 39 3 2 39 4 2 39 5 2 46 2 2 46 3 2 46 1 2 7 3 2 7 4 2 7 5 2 7 6 2 59 2 57 2 58 3 21 ...

Page 64: ...LABEL 2 23 MSPR A036JBE0 THERMISTOR SPRING 2 24 MSPR A143JBEZ SPRING 2 25 NFANPA118JBEZ PROPELLER FAN 2 26 PPLT A663JBTA SIDE COVER R 2 27 PSPF B004JBEZ COMP COVER TOP 2 28 PSPF B005JBEZ COMPRESSOR COVER 2 31 TLAB C511JBRA LABEL 2 32 TLABBA160JBRA IVTLABEL 2 33 TSPC G274JBRZ NAME LABEL 2 34 PPLT A195JBTA SIDE COVER L 2 35 PSEL C830JBEZ SEAL 2 36 CHET A025JBKZ HEATER ASS Y 2 37 PCOV A997JBWZ COVER ...

Page 65: ... A977JBEZ COMPRESSOR COVER 3 21 PSPF B083JBEZ COMPRESSOR COVER 8 OTHER PARTS 1 2 1 QFS CA001JBZZ FUSE 20A 250V 1 2 2 QFS GA051JBZZ FUSE 2A 250V 1 2 3 QFS GA052JBZZ FUSE 3 15A 250V 1 2 4 QFS CA002JBZZ FUSE 15A 250V 1 2 5 QFS GA064JBZZ FUSE 1A 250V 2 50 PSEL C345JBEZ SEAL 2 51 PSEL C684JBEZ SEAL 2 52 PSEL C767JBEZ SEAL 2 53 PSEL C769JBEZ SEAL 3 7 1 RMOTSA023JBZZ COIL 9 OUTDOOR PACKING PARTS 90 1 CPA...

Page 66: ...946JBFB 1 3 59 LHLD A947JBFZ 1 3 66 LHLD A948JBFA 1 3 60 LHLD A951JBFA 1 3 67 LHLD A956JBFA 1 3 53 LHLD A960JBFZ 1 3 54 LHLD A991JBFA 1 8 27 LHLD A995JBFZ 1 8 22 LHLD A998JBKZ 4 7 15 LPIN A009JBEZ 2 2 3 3 2 23 LPIN A010JBEZ 1 3 61 LPLT A058JBPZ 1 3 36 LX BZA075JBE0 5 11 5 7 1 12 LX BZA355JBEZ 7 2 4 LX NZA312JBEZ 7 2 5 LX NZA313JBEZ 7 3 15 M MARMPA067JBMA 2 2 4 3 2 24 MCAMPA010JBFZ 2 2 5 MCAMPA012J...

Page 67: ...BZZ 2 2 12 3 2 33 QTANZA053JBZZ 7 1 6 QTANZA054JBZZ 1 1 10 QW VZF947JBZZ 1 6 1 QW VZF948JBZZ 1 1 26 QW VZF949JBZZ 3 2 34 QW VZF950JBZZ 2 2 18 QW VZG030JBZZ 5 11 22 QW VZG031JBZZ 5 11 23 QW VZG032JBZZ 5 11 24 QW VZG033JBZZ 5 11 25 QW VZG044JBZZ 1 1 25 QW VZG165JBZZ 1 1 29 R RCILZA027JBZZ 7 1 4 RFIL A126JBZZ 7 1 10 RH HXA029JBZZ 7 1 11 RH HXA113JBZZ 1 1 4 RH IXA856JBZZ 7 1 2 6 PARTS CODE No PRICE RA...

Page 68: ...oduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of the publisher COPYRIGHT XXXX BYSHARP CORPORATION ALL RIGHTS RESERVED ...

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