Sharp AH-X127E Manual de usuario

AH-X127E

AU-X127E

AY-X127E

AE-X127E

SHARP CORPORATION

S4709AYX127E/

SPLITTYPE

ROOM AIR CONDITIONERS

Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome

countries) thesetshouldberestoredtoitsoriginalconditionandonly

parts identical to those specified should be used.

SERVICE MANUAL

Page

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

EXTERNAL DIMENSIONS..................................................................................................................................... 4

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

ELECTRICAL PARTS ............................................................................................................................................ 8

BLOCK DIAGRAM ..................................................................................................................................................9

MICROCOMPUTER CONTROL SYSTEM.......................................................................................................... 11

FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ................................................................... 26

BREAKDOWN DIAGNOSIS PROCEDURE ........................................................................................................ 29

REFRIGERATION CYCLE................................................................................................................................. 31

PERFORMANCE CURVES ................................................................................................................................ 34

DISASSEMBLING PROCEDURE ....................................................................................................................... 35

OPTION ............................................................................................................................................................... 45

REPLACEMENT PARTS LIST............................................................................................................................. 47

TABLE OF CONTENTS

MODELS

INDOOR UNIT

AH-X127E

AY-X127E

AU-X127E

AE-X127E

OUTDOOR UNIT

AH-X127E

AU-X127E

AY-X127E

AE-X127E

SPECIFICATIONS

Models INDOOR UNIT OUTDOOR UNIT

AH-X127E AU-X127E

Cooling capacitor kW 3.5 (1.4 3.8)

Moisture removal Liters/h 1.3

Electrical data

Phase - Single

Rared frequency Hz 50

Rated voltage range V 198 to 264

Rated voltage V 220 - 240

Rated current A 7.9 - 7.5

Rated input W 1650

Power factor % 95 - 92

Compressor Type Hermetically sealed rotary type

Model KHV127FEM

Oil charge 270cc(SUNISO 4GSD)

Refrigerant Evaporator Grooved tube type

system Condenser Corrugate Fin and Grooved tube type

Control

Capillary tube

Refrigerant volume 720g

Noise level High dB(A) 41 49

(at cooling) Med. dB(A) 37 -

Low dB(A) 33 -

Fan system

Drive Direct drive

Air flow High m3/min. 9.8 28.3

quantity Med. m3/min. 8.5 -

(at cooling) Low m3/min. 7.0 -

Fan Close flow fan Propeller fan

Connections

Refrigerant coupling Flare type

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

Refrigerant pipe sets No. AZ-24H5E; 5m (16.4 ft), AZ-24H7E; 7m (23ft)

Drain pipng mm (Inches) O.D ø 18 (45/64)

Others

Safety device Compressor: Thermal protector

Fan motors: Thermal fuse

Fuse, Micro computer control

Air filter Polypropylene net (Washable)

Net Width mm 790 (31-3/32) 728 (28-21/32)

dimensions Height mm 270 (10-5/8) 530 (20-7/8)

Depth mm 188 (7-13/32) 250 (9-27/32)

Net weight kg 8 33

Note: The condition of star(

) marked item are 'IEC 378'.

AH-X127E

AU-X127E

AY-X127E

AE-X127E

Models INDOOR UNIT OUTDOOR UNIT

AY-X127E AE-X127E

Cooling capacitor kW 3.5 (1.4 3.8)

Heatpump kW 4.5 (1.4 5.7)

Heating capacitor

Moisture removal Liters/h 1.3

Electrical data

Phase - Single

Rared frequency Hz 50

Rated voltage range V 198 to 264

Rated voltage V 220 - 240

Rated current Cool A 7.9 - 7.5

Heat A 7.9 - 7.5

Rated input Cool W 1650

Heat W 1650

Power factor Cool % 95 - 92

Heat % 95 - 92

Compressor Type Hermetically sealed rotary type

Model KHV127FEM

Oil charge 270cc(SUNISO 4GSD)

Refrigerant Evaporator Grooved tube type

system Condenser Corrugate Fin and Grooved tube type

Control

Capillary tube

Refrigerant volume 790g

De-Ice system Micro computer controled reverse system

Noise level High dB(A) 41 49

(at cooling) Med. dB(A) 37 -

Low dB(A) 33 -

Fan system

Drive Direct drive

Air flow High m3/min. 9.8 28.3

quantity Med. m3/min. 8.5 -

(at cooling) Low m3/min. 7.0 -

Fan Close flow fan Propeller fan

Connections

Refrigerant coupling Flare type

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

Refrigerant pipe sets No. AZ-24H5E; 5m (16.4 ft), AZ-24H7E; 7m (23ft)

Drain pipng mm (Inches) O.D ø 18 (45/64)

Others

Safety device Compressor: Thermal protector

Fan motors: Thermal fuse

Fuse, Micro computer control

Air filter Polypropylene net (Washable)

Net Width mm 790 (31-3/32) 728 (28-21/32)

dimensions Height mm 270 (10-5/8) 530 (20-7/8)

Depth mm 188 (7-13/32) 250 (9-27/32)

Net weight kg 8 34

Note: The condition of star(

) marked item are 'IEC 378'.

AH-X127E

AU-X127E

AY-X127E

AE-X127E

EXTERNAL DIMENSIONS

Figure E-1. INDOOR UNIT

Figure E-2. OUTDOOR UNIT

790 188

270

800

58 18

19.5

182

Length unit (mm)

250

280

304

525

10.5

76.5

141.5

515

530

728

98 60

59.5

69.5

Length unit (mm)

AH-X127E

AU-X127E

AY-X127E

AE-X127E

WIRING DIAGRAMS

Figure W-1. Wiring Diagram for AH-X127E and AY-X127E

TERMINAL BOARD

GREEN-YELLOW

POWER

SUPPLY

LOUVER

MOTOR

ROOM TEMP

THERMISTOR

PIPE TEMP

THERMISTOR FAN MOTOR

CAPACITOR

430V 1.5µF

RECEIVER

BOARD UNIT

DISPLAY

BOARD UNIT

ORANGE

YELLOW

TH1 CN4

CN7 CN8

CN1 A

CN2

BLUE

BLUE BLUE

FAN MOTOR

CN3 NR1

TH2 TH2-1

TH2-2

BLACK

5 3 1 RED

RED

R.P.M.

SIGNAL

CONTROL BOARD UNIT

FUSE

250V 2.5A

OutIn

SSR1

BROWN RY1

INDOOR UNIT

BLACK

TERMINAL BOARDTERMINAL BOARD OUTDOOR UNIT

FAN MOTOR

COMPRESSOR

UNIT TO UNIT CORD

CONTROL BOARD UNIT

1 1

2 2

N N

SERIAL

SIGNAL

CIRCUIT

LED INDICATION FOR SELF-DIAGNOSIS

Abnormal conditions

Short circuit of the outdoor thermistor

Overheat of the compressor

Abnormal AC current

Compressor lock

Open circuit of the outdoor thermistor

DC overcurrent or over heat of the IPM

AC overcurrent

Open circuit of serial signal line

Short circuit of serial signal line

Abnormal fan motor of indoor unit

<Indication of the abnormal condition>

LED yellow and LED red indicate automatically,

if the set is in abnormal condition.

: LED no blink: LED blink

<LED yellow bliking>

LED yellow blinks 5

times in 10 seconds.

Blink steps

<LED red blinking>

Abnormal condition is

indicated by the blink-

ing pattern of LED red.

AH-X127E

AU-X127E

AY-X127E

AE-X127E

Figure W-2. Wiring Diagram for AU-X127E

1 3 5 4

INDOOR UNIT TERMINAL

BOARD OUTDOOR UNIT

TERMINAL BOARD

CONTROL 

BOARD

UNIT

TERMINAL

BOARD

UNIT TO UNIT CORD

CAUTION

The voltage is high at C8,C9 (electronic capacitors) on outdoor unit.

For mentenance dischage at C8,C9 to prevent electric shock.

In case that WPE2 (protecter) has been fused, the voltage is kept high at C8,C9.

G(Y)

T1 WPE1 SA1 NR1

C11

20A

250V

BL T2

T11

CN3

CRE

BK BL

CN8

FAN MOTOR

CAPACITOR

2µF 430V

FAN

MOTOR

CONTROL BOARD UNIT

BCN12 MRY1

PTC1

CT1

REACTOR

WPE3 3A 250V

NR2

RY1

CNR1 C24

LED INDICATION OF SELF-DIAGNOSIS

ON OUTDOOR UNIT

LED BLINKING

LED turns on

Slow flashing (1 time for 2 seconds)

Quick flashing (3 times for 2 seconds)

Example: NO.2 Compressor lock

off 1.0sec 1.0sec 1.0sec0.6sec 0.6sec 0.6sec 1.0sec 1.0sec0.6sec 0.6sec 0.6sec0.6sec

NO.3 Overheat of the compressor

NO.

1

2

3

Normal

Abnomal signal line

Compressor lock 

Overheat of the compressor

DC overcurrent or overheat of the IPM

Short circuit of the thermistor

Open circuit of the thermistor

AC abnormal current

AC overcurrent

LED indication pattern Mulfunction part or abnormal condition NO.

5

6

7

8

LED indication pattern Mulfunction part or abnormal condition

FAN

MOTOR

BK

BL

BR

BLACK

BLUE

BROWN

GRAY

:

RE

WH

OR

G(Y)

RED

WHITE

ORANGE

:

YE YELLOW

:

:GREEN-YELLOW

DIODE BRIDGE DIODE BRIDGE

DB1 DB2

~~ ~~

REACTOR L2

50µF

200V

WH WH

1 4 RE YE

RE C5

C10 GR

BL BL

150µF

400V

150µF

400V GRC9 BR

4700µF

63V T9 T7

WPE2

20A

250V

T10

2000µF 400V 2000µF 400V

FC1

C29

POWER 

TRANSISTOR

MODULE (PM1)

U V W

BCN11

RE WH BK

COMPRESSORU(R)

V(S)

W(C)

THERMISTOR

COMPRESSOR TEMP.

THERMISTOR

PIPE. TEMP.

TH1

TH2OR

AH-X127E

AU-X127E

AY-X127E

AE-X127E

Figure W-3. Wiring Diagram for AE-X127E

3 1 1 3 5

INDOOR UNIT TERMINAL

BOARD OUTDOOR UNIT

TERMINAL BOARD

CONTROL 

BOARD

UNIT

TERMINAL

BOARD

UNIT TO UNIT CORD

CAUTION The voltage is high at C8,C9 (electronic capacitors) on outdoor unit.

For mentenance dischage at C8,C9 to prevent electric shock.

In case that WPE2 (protecter) has been fused, the voltage is kept high at C8,C9.

G(Y)

T1 WPE1 SA1 NR1

C11

20A

250V

BL T2

T11

RY2

CNR2

CN4 CN3

4 WAY

VALVE COIL FAN

MOTOR

CRE

BK BL

CN8

FAN MOTOR

CAPACITOR

2µF 430V

CONTROL BOARD UNIT

BCN12 MRY1

PTC1

CT1

REACTOR

WPE3 3A 250V

NR2

RY1

CNR1 C24

LED INDICATION OF SELF-DIAGNOSIS

ON OUTDOOR UNIT

LED BLINKING

LED turns on

Slow flashing (1 time for 2 seconds)

Quick flashing (3 times for 2 seconds)

Example: NO.2 Compressor lock

off 1.0sec 1.0sec 1.0sec0.6sec 0.6sec 0.6sec 1.0sec 1.0sec0.6sec 0.6sec 0.6sec0.6sec

NO.3 Overheat of the compressor

NO.

1

2

3

Normal

Abnomal signal line

Compressor lock 

Overheat of the compressor

DC overcurrent or overheat of the IPM

Short circuit of the thermistor

Open circuit of the thermistor

AC abnormal current

AC overcurrent

LED indication pattern Mulfunction part or abnormal condition NO.

5

6

7

8

LED indication pattern Mulfunction part or abnormal condition

FAN

MOTOR

BK

BL

BR

BLACK

BLUE

BROWN

GRAY

:

RE

WH

OR

G(Y)

RED

WHITE

ORANGE

:

YE

GN YELLOW

GREEN

:

:GREEN-YELLOW

DIODE BRIDGE DIODE BRIDGE

DB1 DB2

OR ~~ ~~

REACTOR L2

50µF

200V

WH WH

1 4 RE YE

RE C5

C10 GR

BL BL

150µF

400V

150µF

400V GRC9 BR

4700µF

63V T9 T7

WPE2

20A

250V

T10

2000µF 400V 2000µF 400V

FC1

C29

POWER 

TRANSISTOR

MODULE (PM1)

U V W

BCN11

RE WH BK

COMPRESSORU(R)

V(S)

W(C)

THERMISTOR

COMPRESSOR TEMP.

THERMISTOR

AIR. TEMP.

THERMISTOR

PIPE. TEMP.

TH3

TH1

TH2

AH-X127E

AU-X127E

AY-X127E

AE-X127E

ELECTRICAL PARTS

For Model AH-X127E and AU-X127E

DESCRIPTION MODEL REMARKS SITE

Indoor fan motor ML-A486 220 - 240V, 50Hz AH

Indoor fan motor capacitor – 430V, 1.5µF AH

Transformer – Primary; AC 230V, 50Hz AH

Secondary; AC14.6V, 50Hz

Fuse – 250V, 2.5A AH

Compressor KHV127FEM 3-PHASE Induction motor AU

Outdoor fan motor ML-A584 220 - 240V, 50Hz AU

Outdoor fan motor capacitor – 430V, 2.0µF AU

WPE1 – QFS-GA014JBE0(20A, 250V) AU

WPE2 – QFS-GA019JBE0(20A, 250V) AU

WPE3 – QFS-GA008JBE0(3A, 250V) AU

For Model AY-X127E and AE-X127E

DESCRIPTION MODEL REMARKS SITE

Indoor fan motor ML-A486 220 - 240V, 50Hz AY

Indoor fan motor capacitor – 430V, 1.5µF AY

Transformer – Primary; AC 230V, 50Hz AY

Secondary; AC14.6V, 50Hz

Fuse – 250V, 2.5A AY

Compressor KHV127FEM 3-PHASE Induction motor AE

Outdoor fan motor ML-A584 220 - 240V, 50Hz AE

Outdoor fan motor capacitor – 430V, 2.0µF AE

WPE1 – QFS-GA014JBE0(20A, 250V) AE

WPE2 – QFS-GA019JBE0(20A, 250V) AE

WPE3 – QFS-GA008JBE0(3A, 250V) AE

AH-X127E

AU-X127E

AY-X127E

AE-X127E

BLOCK DIAGRAMS

INDOOR UNIT for AH-X127E and AY-X127E

DC power supply circuit

Fan motor phase control circuit

Rotation pulse input circuit

AC clock circuit

Louver motor drive circuit

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

Power on circuit

Flow direction control

(louver motor)

Wireless remote control

operation

Audible operation confirmation

Room fan motor

Fan motor pulse detect

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)

Self diagnostics,

fault diagnosis

AC power

Unit-unit

wiring (AC

power and

serial

signals)

CPU

FUSE

Auxiliary mode Auxiliary mode button ON/OFF

2.5 A

AH-X127E

AU-X127E

AY-X127E

AE-X127E

OUTDOOR UNIT for AU-X127E and AE-X127E

CPU

Test mode circuit

LED drive circuit

Winter kit circuit (option)

Heat exchanger pipe 

thermo circuit

Compressor thermo circuit

CPU reset circuit

Serial I/O circuit

Power transistor module 

drive circuit

4-way valve relay drive

circuit

Outdoor fan relay drive

circuit

Power supply

circuit (built

into IPM)

CPU oscillator circuit

AC overcurrent detection

circuit

DC overcurrent detection

circuit

LED

Heat exchanger pipe

thermistor

Compressor thermistor

Current transformer

Outdoor temperature

thermo circuit Outdoor temperature

thermistor

Compressor

Power 

transistor module

4-way valve (except for

the AU-X127E)

Outdoor fan

Smoothing

circuit Passive filter

circuit

Filter

circuit Unit-unit

wiring (AC

power and

serial

signals)

20 A

protection

20 A protection

3 A

protection

Heat exchanger pipe

thermistor(option)

Outdoor temperature

thermistor(option)

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