Sharp AE-X26FR-N User manual

CHAPTER 1. SPECIFICATION

[1] SPECIFICATION............................................ 1-1

[2] EXTERNAL DIMENSION............................... 1-2

[3] WIRING DIAGRAM ........................................ 1-3

[4] ELECTRICAL PARTS .................................... 1-3

CHAPTER 2. EXPLAMATION OF CIRCUIT AND OP-

ERATION

[1] BLOCK DIAGRAMS....................................... 2-1

[2] MICROCOMPUTER CONTROL SYSTEM.... 2-3

[3] FUNCTION..................................................... 2-8

CHAPTER 3. FUNCTION AND OPERATION OF PRO-

TECTIVE PROCEDURES

[1] PROTECTION DEVICE FUNCTIONS AND

OPERATIONS................................................ 3-1

[2] AIR CONDITIONER OPERATION IN

THERMISTOR ERROR ................................. 3-3

[3] THERMISTOR TEMPERATURE CHAR-

ACTERISTICS ............................................... 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 FOR REFRIGERANT.........................4-1

[2] STANDARD CONDITIONS............................4-1

[3] PERFORMANCE CURVES...........................4-2

CHAPTER 5. DISASSEMBLING PROCEDURE

[1] INDOOR UNIT...............................................5-1

[2] OUTDOOR UNIT...........................................5-5

REOLACEMENT PARTS LIST

SERVICE MANUAL

CONTENTS

Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the

safety and performance of the set.

This document has been published to be used for

after sales service only.

The contents are subject to change without notice.

TopPage

AYXP26FRN

SPLIT TYPE

ROOM AIR CONDITIONER

INDOOR UNIT

AY-XP26FR-N

OUTDOOR UNIT

AE-X26FR-N

MODELS

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.

AYXP26FRN

1 – 1

AYXP26FRN Service Manual

CHAPTER 1. SPECIFICATION

[1] SPECIFICATION

1. AY-XP26FR-N / AE-X26FR-N

NOTE: The conditions of star(✩) marked items sre ‘ISO151’ : 1994(E), condition T1.

MODEL INDOOR UNIT OUTDOOR UNIT

ITEMS AY-XP26FR-N AE-X26FR-N

Cooling capacity(Min. ~ Max.) kW 2.6 (0.9 - 3.0)

Heating capacity(Min. ~ Max.) kW 3.6 (0.9 - 5.0)

Moisture removal(at cooling) Liters/h

Electrical data

Phase Single

Rated frequency Hz 50

Rated voltage V 230

Rated current✩

(Min - Max.)

Cool A 3.3 (0.8 - 4.6)

Heat A 4.1 (0.7 - 6.5)

Rated input✩

(Min - Max.)

Cool W 650 (150 - 900)

Heat W 900 (130 - 1400)

Power factor✩Cool % 86

Heat % 95

Compressor Type Hermetically sealed rotary type

Model 5RS092XDF

Oil charge 320cc (RB68A or Freol Alphc 68M)

Refrigerant system Evaporator Louver Fin and Grooved tube type

Condenser Corrugate Fin and Grooved tube type

Control Expansion valve

Refrigerant (R410A) 1000g

De-lce system Micro computer controled reversed systems

Noise level

(at cooling)

High dB(A) 43 48

Low dB(A) 34 -

Soft dB(A) 28 -

Fan system

Drive Direct drive

Air flow quantity

(at cooling)

High m3/min. 9.9 22

Low m3/min. 7.7 –

Soft m3/min. 6.0 –

Fan Cross flow fan Propeller fan

Connections

Refrigerant coupling Flare type

Refrigerant tube size Gas, Liquid 3/8", 1/4"

Drain piping mm O.D φ18

Others

Safety device Compressor: Thermal protector

Fan motors: Thermal fuse

Fuse, Micro computer control

Air filters Polypropylene net (Washable)

Net dimensions Width mm 810 730

Height mm 285 540

Depth mm 240 250

Net weight kg 11 36

AYXP26FRN

1 – 2

[2] EXTERNAL DIMENSION

1. INDOOR UNIT

2. OUTDOOR UNIT

CRMC-A442JBE0

R03(AAA) 2PCS.

SHARP CORPORATION

INVERTER AIR CONDITIONER

22.0

58 18.5

175

790

240

285

810

250

165

167.5

136

730

540

299

324

515

37.5

4.5

135

AYXP26FRN

1 – 3

[3] WIRING DIAGRAM

1. INDOOR UNIT

2. OUTDOOR UNIT

[4] ELECTRICAL PARTS

1. INDOOR UNIT 2. OUTDOOR UNIT

WIRING DIAGRAM <CB878>

INDOOR UNIT OUTDOOR UNIT

TERMINAL BOARD1

POWER

SUPPLY

SINGLE

PHASE

GREEN-YELLOW

BLUE

BLACK

LOUVER MOTOR

(TOP)

LOUVER MOTOR

(BOTTOM)

ROOM TEMP.

THERMISTOR

PIPE TEMP.

THERMISTOR

TH1

TH2

YELLOW

ORANGE

CNA

CNB

R76

IN OUT

BLUE

BLACK

RED

NF1 DB1

C14A

FU1

250V

3.15A

FU2

250V

NR1

SSR

RY1

C23

NF2

C28

CN5 C98

C99

CN1

C97

C96

FAN MOTOR

TERMINAL BOARD 2 TERMINAL BOARD

CLUSTER

GENERATOR

POWER

SUPPLY UNIT

CN2

CN3

BCN1

BCN3

BCN201 CN102

BCN101

CN101

DISPLAY

BOARD

UNIT

RECEIVER

BOARD

UNIT

CONTROL BOARD UNIT

SERIAL

SIGNAL

CIRCUIT

EVAPORATOR

LED INDICATION FOR SELF-DIAGNOSIS

Abnormal contents

Temperature

Indicator

Blinking No.

Short circuit of the Thermistor

Overheat error (compressor and cycle)

Open circuit of the Thermistor

Abnormal DC current

Abnormal AC current

Abnormal outdoor fan motor

Abnormal Thermistor or four way valv

Abnormal PAM voltage and PAM clock signal

Open circuit of serial signal line

Short circuit of serial signal line

19 Abnormal fan motor of indoor unit

Rotation error of the compressor or compressor lock

LED indicator will blink, if the set is in abnormal condition.

DESCRIPTION MODEL REMARKS

Indoor fan motor MLB084 DC Motor

Indoor fan motor

capacitor

——

Transformer — —

FUSE1 — QFS-GA052JBZZ (250V, 3.15A)

FUSE2 — QFS-GA051JBZZ (250V, 2A)

DESCRIPTION MODEL REMARKS

Compressor 5RS092XDF D.C. brush-less motor

Outdoor fan motor ML-A902 DC Motor

Outdoor fan motor

capacitor

——

Fuse1 — QFS-CA001JBZZ(250V, 20A)

Fuse2 — QFS-GA052JBZZ(250V, 3.15A)

Fuse3 — QFS-GA051JBZZ(250V, 2A)

Fuse4 — QFS-GA064JBZZ(250V, 1A)

Fuse5, 6 — QFS-CA002JBZZ(250V, 15A)

AYXP26FRN

2 – 1

AYXP26FRN Service Manual

CHAPTER 2. EXPLAMATION OF CIRCUIT AND OPERATION

[1] BLOCK DIAGRAMS

1. Indoor unit

Louvre motor drive circuit(upper)

Louvre motor drive circuit(lower)

LED drive circuit

Flow direction control (louver motor upper)

Flow direction control (louver motor lower)

LED display

AC power

Rectification circuit

CPU

Sub

CPU

3.15A

Fuse

Serial signals

Fuse

DC power supply circuit

Fan motor PWM control circuit

Rotation pulse input circuit

AC clock circuit

Remote controller signal reception circuit

Buzzer drive circuit

CPU reset circuit

CPU oscillator circuit

Room temp. detect circuit

Heat exchanger pipe thermo circuit

EEPROM

Select circuit

Serial I/O circuit

Power supply relay drive circuit

Auto restart circuit

Test run circuit

Auxiliary mode

Power on circuit

Cluster generator drive circuit

Cluster generator sensor 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

Outdoor unit power supply on/off control

Test run (forced operation)

Auxiliary mode button ON/OFF

Self diagnostics, fault diagnosis

Cluster generator

Unit-unit wiring

(AC power and

serial signals)

AYXP26FRN

2 – 2

2. Outdoor unit

CPU

20A

protection

Expantion valve drive circuit Expantion valve

Suction temp. thermo. circuit Suction pipe thermistor

2-way valve temp. thermo. circuit 2-way valve thermistor

3.15A

protection

15A

protection

Power supply circuit

CPU oscillator circuit

DC overvoltage detection circuit

Outdoor fan drive circuit

4-way valve relay drive circuit

Power transistor module drive circuit

Serial I/O circuit

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

Unit-unit wiring (AC power

and serial signals)

Outdoor fan

4-way valve

Power transistor module

Compressor

Current transformer

Compressor thermistor

Heat exchanger pipe thermistor

Outdoor temperature thermistor

LED

AYXP26FRN

2 – 3

[2] MICROCOMPUTER CONTROL SYSTEM

1. Indoor unit

1.1. Electronic control circuit diagram

AYXP26FRN

2 – 4

1.2. Display circuit diagram

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D102

LED105

LED102

LED103

LED104

D101

D103

1SS270A

1 / 2W 1 / 2W 1 / 2W

R104

1/2W

180

R103R102R101

180180180

LED109

9(H2)

7(G2)

12(F2)

5(E2)

15(B1)

16(A1)

6(D2)

8(C2)

10(B1)

11(A2)

4(H1)

17(G1)

18(F1)

1(E1)

2(D1)

3(C1)

13(COM)

(COM)14

F1 B1

SL3264

1/2W

180

R107, R108, R110, R111

180

R105, R106, R109

R111

R110

R109

R108

R107

R106

R105

BCN201

R201

47 1/2W

BCN101

C202

0.1μ

50V

C201

33μ

10V

IC201

CN102

CN101

SHEMATIC DRAWING OF DISPLAY

LED101

AYXP26FRN

2 – 5

1.3. Printed wiring board

AYXP26FRN

2 – 6

2. Outdoor unit

2.1. Electronic control circuit diagram

9.53KF

R84

Q10

15V

0.01μ

10V

47μ

6.8KJ

R85

C77

R86

C78

250V

FU3

CN3

0.1μ

400V

C29

R83

10K

RY1

IC7

10K

JP1

JP2

JPF

100μ

C94

10V

C95

0.1μ

10K

R37 1K

R38 1K

R36 1K

0V U

C34

C35

C36

1000P x 3

TR1

R29

4.7K

18V - P

C85

0.1μ

R82

680μ

C19

IC3

R27

IC4

R22

25V

C20R21

22K

R24

10K

R87

150μ

C84

D14

35V

0V -P

35V

R93

R94

R92

D20

C98

R78

IC5

C33

R77

50V

1μ

R79

100

0.1μ

C32

JP10

10K

2.2K

R32

R31

R33

IC6

CNE

R30

4.7K

13V

CN12

EXPANSION

VALV COIL

MRY1

13V

C38

0.1μ

10K

R45

100μ

C47

1000P

C42

C48

10V

0.1μ

IPM

330μ 25V

C37

100μ

25V

C49

0.1μ

25V

C51

0.1μ

C54

100μ

25V

C53

0.1μ

0.1μ C55

0.1μ

C57

C45

0.1μ

C56

D10

100μ

C52

C50

VWFB

VUFS

VUFB

VPI

VWFS

VPI

VVFS

VVFB

VNC

VNI

C41

1000P

C40

C43

1000P

C44

1000P

C39

1000P

R46

ZD4

16V 10μ x 5

C70 ~ 74

10K x 5 R63 ~ 67

CN8

0.01μ x 5 C65 ~ 69

TH2

TH3

TH4

TH5

330K

R100

R107

PC4

330

KRC105S

1000P

C59

1/2W

R51 ~ 53

IPM

R49

TLP351

270KD

R126

255KF

250V

FU5

0.02

15A

470KF x 3

CIN

CF0

150

R110

250V

FU4

1KV

C27

220PF

C15

50V

10μ

R17

STR -L

472

IC2

1/2W 1M

R10

R11

R12

R13

3.3K

R20

2SA1586G

ZD1

470P

C17

R14

R18

1.5K

3300P

OCP/FB

1~4

710 96

Source

GND

Drain

Vcc

C18

680

R16

R15

C16

D15

1.6

R19

15V

PC3

0.01μ

C81

R146

100K

5V5V

FU2

R105

22K

3.3K

R106

C83

1000P

0.01μ

C82

KRC102S

10V

C79

R91 R147

10K

R90

1.0KF 220μ

2.2K

R111

DB2

TERMINAL

BOARD

WH WH

R89

BLUE

BROWN

YELLOW

GREEN/

L3 L4

SA1

NR1

1/2W

275V

1μF

275V

1μF

275V

CT1

510K

1/4W

R88

1/4W

510K

C1 C3

OUT

PTC

MRY1

GR GR

DB1

18V-P

4700pF

250V

4700pF

250V

4700pF

250V

4700pF

250V

3.3K

D1 0.1μ

C13

2W 2W

1K 1K

4700P

250V

C12

420V 420V

3.15A

250V

R101

R102

R103

R104

1/2W 47K x 2

R101, 102

1W 47K x 2

R103, 104

T10 T11

PC81716NIP

R55

R56

R54

C60

0.1μ

25V

R99 100

0.1μ

C86

15K

R112

C61

50V

330P

50V

C62

R57 100

R58 100

R59 100

C63

330P

50V

0.1μ

C64

25V

IC8

KIA339

0.01μ

C97

UVN

C88

1000P

R116

RY1

120

1/2W

0.033μ

NR2

275V

CN4

C26 R28 3

D24

RED

R129

10K

T12

T13

250V

20A

FU1

R34

R35

JP16

0.1μ

C93

100μ

10V

C30

JP9

JP8

JP7

10111213141516171819 1

89 7

51504948474645444342414039383736353433

P07

P10

P11

P12

P13

P14

P15

P16

P17

P20

P21

P22

P23

P24

P25

P26

P27

VSS

P30

(U)

P44

P45

P46

P50

P51

P52

P53

P54

P55

P56

P57

AVCC

AVR

AVSS

P60

P61

P62

P63

MD0

(B)

(O)

(Y)

(W)

IC1

RST

MD1

MD2

VSS

P00

P01

P02

P03

P04

P05

P06 P31

P32

P33

P34

P35

VCC

P36

P37

P40

P41

P42

P43

(X)

(V)

(Y)

(W)

(Z)

(U)

(V)

(W)

R133 100

R132 100

R137 100

R136 100

R135 100

R134 100

2.2K

R73 LED1

10K

R155 10K

R154

(CN)

OSC1 4MHz

10K

JP17

VNO

20.5KF

PS21563 or 21564

FU6

250V

15A

1000P

C46

C4A

C5A

C7A

C6A

R41 R42

R43

680P

6.8K

270

15V

D11 6.8KF x 5

R68 ~ 72

R47, 48

33 x 2

1/4W

1/4W 33 x 2

R47A, 48A

(R)

(C)

FC3 FC4

YELLOW

GREEN/

EARTH

U32

V33

W34

FC1

FC2

D12

D13

R61

1.8K

R60

1.8K

R62

1.8K

R115

R114

0V -P

D23

D22

D21

15V

0.022μ

C58

ZD3

R50

1.8KF

VALV

COIL

4-WAY

PC1

PC817XP3

2.7K

R75

R74

1000P

C75

4.7K

R76

56K

PC853HXP

PC2

4.64KF

R26

R23

68K

C21

0.033μ

1.65KF

R25

1.5K

150μ

10K

C23

0.1μ

7805

R81

10K R144

C76

1000P

23.7KF

R7 R128

13KF

R127

13KF

0.33μ

C14

630V

270KD

1/2W

R125

1/2W

300KF

1/2W

750μ

C10

750μ

(THERMISTOR CIRCUIT)

(THERMISTOR)

(SERIAL I/O CIRCUIT)

(PAM OVER CURRENT CIRCUIT)

(EEPROM CIRCUIT)

(4 - WAY VALVE CIRCUIT)

(FAN MOTOR CIRCUIT)

(FAN MOTOR)

(RESET CIRCUIT) (SWITCHING POWER

SUPPLY CIRCUIT)

KID65004AP

PST993D

KRA106S

KRC105S

KRA106S

(DC OVERCURRENT CHECK CIRCUIT)

MONITOR

(FOR DEBUG)

CND

(FRASH WRITER

CONNECTOR)

(LED CIRCUIT)

DETECT CIRCUIT)

(ROTOR POSITION

2.7kF

6.8KF

13V

0.1μ

C31

19.1KF

R113

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