Sharp AH-MX122 User manual

INDOOR UNIT

AH-MX122/AH-MX152

OUTDOOR UNIT

AU-MX122/AU-MX152

SPLITTYPE

ROOM AIR CONDITIONERS

Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome

countries) thesetshouldberestoredtoitsoriginalconditionandonly

parts identical to those specified should be used.

SERVICE MANUAL

Page

SPECIFICATIONS ............................................................................................................................................. 2

EXTERNAL DIMENSIONS .................................................................................................................................3

WIRING DIAGRAMS ......................................................................................................................................... 5

ELECTRICAL PARTS.........................................................................................................................................7

BLOCK DIAGRAM ..............................................................................................................................................8

MICROCOMPUTER CONTROL SYSTEM .........................................................................................................9

FUNCTIONS .................................................................................................................................................... 13

FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 17

BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 19

REFRIGERATION CYCLE ............................................................................................................................. 21

PERFORMANCE CURVES ............................................................................................................................. 22

DISASSEMBLING PROCEDURE.................................................................................................................... 23

REPLACEMENT PARTS LIST .........................................................................................................................30

SHARP CORPORATION

SPECIFICATIONS

MODELINDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT

ITEM AH-MX122 AU-MX122 AH-MX152 AU-MX152

Cooling capacity(Min. ~ Max.) BTU/h 9000(3600~12000)

11700(5400~15000)

Moisture removalLiters/h 0.7 0.7

Electrical data

PhaseSingle

Rated frequencyHz 50

Rated voltage range V 198 to 242

Rated voltage V 220

Rated current A4.2 5.5

Rated input W 818 1090

Power factor % 89 90

Type AC Single Rotary

CompressorModel 44A072QV2DJ HV187XV-S12F3

Oil charge SUNISO 4GDID 280cm3SUNISO 4GDID 370cm3

Evaporator Louver Fin and Grooved tube type , Pre-coat treament

Refrigerant system

Condenser Louver Fin and Grooved tube type

ControlCapillary tube

Refrigerant volume

50g 740g 50g 800g

Noise level HighdB(A) 36 43 40 48

(at cooling)Med.dB(A) 32 43 35 48

LowdB(A) 27 43 29 48

Fan system

DriveDirect drive

Air flow quantityHighm3/min. 9.8 30 10.5 30

(at cooling)Med.m3/min. 8.8 30 9.5 30

Lowm3/min. 6.4 30 6.6 30

Fan Cross flow fan Propeller fan Cross flow fan Propeller fan

Connections

Refrigerant coupling Flare type

Refrigerant tube size Gas, Liquid 3/8", 1/4" 3/8", 1/4" 1/2", 1/4" 1/2", 1/4"

Drain piping mm O.D ø 18 - O.D

∅

18 -

Others Compressor: Thermal protector

Safety device Fan motors: Thermal fuse

Fuse, Micro computer control

Air filters Polypropylene net (Washable)

Widthmm 815 780 815 780

Net dimensionsHeightmm 278 550 278 550

Depthmm 198 269 198 269

Net weightkg 9 33 10 38

Note: The condition of star " " marked item are ‘ISO5151’ : 1994(E), condition T1.

EXTERNAL DIMENSIONS

INDOOR UNIT

OUTDOOR UNIT

Length unit (mm)

19.5

CRMC-A442JBE0

R03(AAA) 2PCS.

SHARP CORPORATION

INVERTER AIR CONDITIONER

182

815

278

198

1100

269

179.5

182.5

136

780

540

310

335

540

37.5

4.5

158

INSTALLATION DIMENSIONS

815 (unit size)

More than 50mm

Center of wall hole:

Leftward piping Center of wall hole: Backward piping

Outline of indoor unit

55 95

80 55

278 (unit size)

Ceiling

Wiring Diagram for AH-MX122 / AH-MX152

WIRING DIAGRAMS

TERMINAL BOARD 1

GREEN-YELLOW

POWER

SUPPLY

SINGLE

PHASE

INDOOR UNIT OUTDOOR UNIT

BROWN In Out

RY1

WPE1

250V

CONTROL BOARD UNIT

LOUVER

(UPPER)

LOUVER

(LOWER)

ROOM TEMP.

THERMISTOR

PIPE TEMP.

THERMISTOR

TH1

TH2

CN3

YELLOW

ORANGE

RECEIVER

BOARD UNIT

DISPLAY

BOARD

UNIT

BCN2

BCN3

CN101

CN102

CN2

CN7

BCN1

TRANS1 SSR1 S

SERIAL

SIGNAL

CIRCUIT

FAN MOTOR

CAPACITOR

430V 2µF

CN6

CN1

TERMINAL BOARD 2 TERMINAL BOARD

BLACK

RED

BLUE

531

BLACK

FAN MOTOR

BLUE

RED

COMPRESSOR

FAN MOTOR

UNIT

CORD

CONTROL

BOARD

UNIT

R.P.M.

SIGNAL

INTERNAL

THERMAL

FUSE

LED INDICATION FOR SELF-DIAGNOSIS

Abnormal contents

Temperature

Indicator

Blinking No.

Short circuit of the outdoor thermistor

Overheat of the compressor

Abnormal AC current

Compressor lock

Open circuit of the outdoor thermistor

AC overcurrent

Power module(IPM) abnormality

Open circuit of serial signal line

Short circuit of serial signal line

Abnormal fan motor of indoor unit

Abnormal power factor module(AFM)

< Indication of the abnormal condition >

LED indicator will blink, if the set

is in abnormal condition.

Electronic Control Circuit Diagram for AU-MX122

Electronic Control Circuit Diagram for AU-MX152

BLOCK DIAGRAMS

INDOOR UNIT

AC power

CPU

3 A

WPE1

DC power supply circuit

Fan motor phase control circuit

Rotation pulse input circuit

AC clock circuit

Louvre motor drive circuit(upper)

Louvre motor drive circuit(lower)

Remote controller signal reception circuit

Buzzer drive circuit

CPU reset circuit

CPU oscillator circuit

Room temp. detect circuit

Heat exchanger pipe thermo circuit

Compensation circuit/ select circuit

Compensation circuit

Switchover circuit

Serial I/O circuit

Compressor relay drive circuit

LED drive circuit

Auto restart circuit

Test run circuit

Auxiliary mode

Power on circuit

Room fan motor

Fan motor pulse detect

Flow direction control (louver motor upper)

Flow direction control (louver motor lower)

Wireless remote control operation

Audible operation confirmation

Room temp. thermistor

Heat exchanger pipe thermistor

Blower temperature, fan speed, model select

Outdoor ratings

Wireless, preheat

Indoor/outdoor control signal I/O

Outdoor unit power supply on/off control

LED display

Test run (forced operation)

Auxiliary mode button ON/OFF

Self diagnostics, fault diagnosis

Unit-unit wiring

(AC power and

serial signals)

CPU

15 A

protection

Outdoor fan

4-way valve

Power transistor module

Compressor

Current transformer

Compressor thermistor

Heat exchanger pipe thermistor

Outdoor temperature thermistor

Heat exchanger pipe thermistor(option)

Outdoor temperature thermistor(option)

LED

3 A

protection

10 A

protection

Power supply circuit

(built into IPM)

CPU oscillator circuit

Outdoor fan relay drive circuit

4-way valve relay drive circuit

Power transistor module drive circuit

Serial I/O circuit

CPU reset circuit

DC overcurrent detection circuit

AC overcurrent detection circuit

Compressor thermo circuit

Heat exchanger pipe thermo circuit

Outdoor temp. thermo. circuit

Winter kit circuit (option)

LED drive circuit

Test mode circuit

Filter

circuit

Smoothing

circuit

Unit-unit wiring (AC power

and serial signals)

OUTDOOR UNIT

MICROCOMPUTER CONTROL SYSTEM

Electronic Control Circuit Diagram for AH-MX122 and AH-MX152

(CN9)

LED101

LED104

LED103

LED102

LED110

LED109

LED108

LED107

LED106

LED105

R101

R102

R103

R104

R105

R106

R107

R108

R109

1/2W

220

300

220

100

1/2W

LED111

1/2W

1/2W 330

R114

R40 3.3K

50V

50V C21

C22 1000p

1000p

BCN3

BCN2

R58~R62

(SW2)

MOTOR

FAN

HOLE

P00

P01

P02

P03

P04

P05

P06

P07

P10

P11

P12

P13

P14

P16

P17 33

64 P63

P64

P65

P66

P67

AVss

Vref

Vcc

P30

P31

P32

P33

P34

P35

P36 P20

P21

P22

P23

P24

P25

P26

P27

Vss

Xout

Xin

P40

P41

RESET

CNVss(Vpp)

P42

P62

P61

P60

P57

P56

P55

P54

P53

P52

P51

P50

P45

P43

M3803**

IC1

(PATTERN SIDE)

PC2

PC1

4.7K

100K

0.047µ

50V

250V

0.01µ680 680

2W 2W

680 680

2W 2W

680

22K

P15

10K

0.1µ

25V 8M

1PIPE TEMP.

TH2

10kΩ(25˚C)

15kΩ(25˚C)

ROOM TEMP.

TH1

0.22µ

250V

NR1

250V

OUT

RY1

WPE

UNIT

OUTDOOR

TERMINAL

BOARD

KID65783AP

IC6

SW1

GND

12V

-24V

33K

16V

C26

0.01µ

R41

1.8K

33K

1000P

R23

3.3K

CN6

100µC810V

FAN L

FAN M

FAN H

RATE HEAT

TEA

MODEL 5

MODEL 4

MODEL 3

MODEL 2

MADEL 1

R42 R43

R44 R45

R46 R47

R48 R49

R50 R51

R52

R53

R54

R55

R56

JP 1

JP 2

JP 3

JP 4

JP 5

R67 R66

12K 12K

R65R64

11K

2W 2W

11K

C30

100µ

35V

C29

ZD1

R63

C28 D7

R57

C27

R38

R37

R36

R35

R34

JP8

JP7

JP6

R30

380 R29

680

C19

C18

10µ

16V16V

10µ

10K

(F)

R27 10K

(F)

R26

R21

R20

R19

C13

C12

C11

IC7

IC8

OSC1

FRONT

1/2W

C10 1000p

50V

25V 0.1µ

RY1

BZ1

BUSY

112V

25V

4CLOCK

5SERIAL

7RESET

GND

HOT KEEP

PREHEAT

WIRELESS

2.7K

50V 1000p

1000p

50V

P37

P44

P46

P47

FUSE

THERMAL

SSR1

470

1.8K

10K

POWER

SUPPLY

SINGLE

PHASE

JP10

33KR2

TRANS1

D1~4

33K

C450V

0.1µ7812

IC2

35V C3

1000µ

0.1µ

25V

OUT

47µ

25V

1001/2W R1

JP11

25V

47µ

0.1µ

25V C7

IN IC3

7805

25V

0.1µ

R31

IC4

118

11 C31

250V 0.01µ

SSR1

CNR1 L1

430V C1

2µ

FUSE

THERMAL

MOTOR

FAN

CN1

C32

C33

680

CN101

CN102

10(B2)

11(A2)

12(F2)

15(B1)

18(F1)

17(G1)

16(A1)

14(CM1)

13(CM2)

9(H2)

8(C2)

7(G2)

6(D2)

5(E2)

4(H1)

3(C1)

2(D1)

1(E1)

CM1,2

33K

33K R33

R32

JP9

JP99

TEST

POWE ON

R39 20K

C24 16V

0.01µ

C2550V

1000P

330

W115

1/2W

LED121

R1163301/2W

1/2W R111

330

R112

R110

330

1/2W R113330

25V

0.1µ

680 680

R68 R69

33K

CN7

0.1µ

25V

33µ

10V

+5V

GND

C201 C202

IC201

BCN201

BCN1

6.8K

IC59

116

10K R7

CN3

LOUVER

MOTOR

UPPER

LOWER

LOUVER

MOTOR

1CN2

∆:TEST POINT

(NOTE)

LED101 : OPERATION

LED102 : TIMER

LED103 : ROOM TEMP.

LED104 : OUTDOOR TEMP.

SW1 : AUX.(TEST RUN)

SW2 : POWER SELECTION

LED105 : POWER MONITOR ECO

LED106 : POWER MONITOR 1

LED107 : POWER MONITOR 2

LED108 : POWER MONITOR 3

LED109 : POWER MONITOR 4

LED110 : POWER MONITOR POWER

50V

C34

JP34

C1716V 0.01µ

JP23680

NONEUSE

SW2

USE

NONE

NONENONE NONENONEUSE 15K13K13K 15K15K13K13K15K13K

NONE NONE USENONE NONE NONENONE

USEUSENONE NONENONENONE USENONENONE 13K 15K 13K 13K 15K 15K13K 13K 15K

USE NONE NONE

NONENONEUSEUSE 15K13K13K 15K15K13K13K15K13K

NONE NONE USENONE NONE NONENONE NONE

NONENONENONE NONENONENONE USEUSENONENONENONE 13K 24K 15K13K 13K 15K 15K13K 13K 130K

AH-MX122

AH-MX152

AH-X10BE

AY-X08BE

AH-MX152

AH-MX122

MODEL JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 R51R50R49R48R47R46R45R44R43R42JP99

68K13K13K 15K15K13K13K ----47K13K

NONEUSE USE NONE USE NONE NONE USE NONE NONE

33K13K13K 2.4K3.6K13K----- 15K15K13K

USE NONE USE NONE USENONE NONE NONE

Printed Wiring Board for AH-MX122 / AH-MX152

QPWBFB389JBZZ

HEAT

COOL

RATE

FAN H

FAN M

FAN L

R43

R51

R47

R49

R45

JP1

R53

R54

R55

R56

C27

JP2

JP24

JP22

JP21

JP20

C10

JP3

JP4

JP5

2345

MODEL

SELECT

BZ1

BCN1

CN2

SW1

SW2

4IC8

IC4

DPWBF JB

R69

R68

C11

C12 R5

JP17

BCN2

R20

R30

C21

C22

C23

R31

R20

R19

LOUVER LOW

JP16

JP15

LLOUVER UP

CN3 THERMISTOR

CN7

151 4

IC5

BCN3 JP18

JP19

IC6

OSC1

916

IC1

116

33 32

JP24

JP6

JP7

JP8

JP31

JP33

R35

R36

R34

JP27

R42

R44

R46

R48

R50

C26

R41

R40

C25

JP32

R39 R37

C24 JP29

R31

PC2

PC1

JP23

C17

C29

R58

C32

NR1

R65

R64

C34

Q2 321

R28

C20

R27

C19

R26 C18

JP34

C31

RY1

IC3

WPE1 3A 250V

BLACK

C30

ZD1

JP99

R32

JP9

JP28

IC3

JP11 TRANS1

Q1 R3

C3 (CN8)

12 3

IC7 C33

JP10

CN9

JP30

C13

R21

JP25 R38

R63

C28

R57

3412

JP14

TERMINAL

BOARD

TERMINAL

BOARD

JP13

BROWN

OUT

RED

BLUE

SSR1

CN1

FAN M

JP12

CNR1

FAN M

CN6

R23

R66

R67 R62

R61 R60 R59

D4 D1

GND

+12V

-24V

+5V

BCN201

C202

C201

IC201

FP389-DISPLAY

JP101

CN102

LED111

LED110

LED109

LED108

LED107

LED106

LED105

R109

R108

R107

R106

R105

R111

R113

R112

R110

R116

R115

JP102

JP103

R102

LED104

R103

LED103

R101

CN101

R114

1018

LED121

R101

LED102

LED101

TO TERMINAL " 2 " OF

TERMINAL BOARD 4P

(RED)

TO TERMINAL " N " OF

TERMINAL BOARD 4P

(BLUE)

FROM

TERMINAL " 1 " OF

TERMINAL BOARD 3P

(BROWN)

FROM

TERMINAL " 1 " OF

TERMINAL BOARD 4P

(BLACK)

FROM

FAN

MOTOR

FROM

FAN

MOTOR

FROM

THERMISTOR

FROM

LOUVER MOTOR UPPER

(TOP)

FROM

LOUVER MOTOR LOWER

(BOTTOM)

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