General ASH12LA, ASH12LSACW, AOH12LSAC, ASH9LA, ASH9LSACW Service Manual

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Page 1

SPLIT TYPE ROOM AIR CONDITIONER

WALL MOUNTED

Models

Indoor unit Outdoor unit

ASH9LSACW AOH9LSAC

ASH12LSACW AOH12LSAC

type

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . .

DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . .

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . . . . .

REFRIGERANT SYSTEM DIAGRAM . . . .

ERROR CONTENTS . . . . . . . . . . . . . . . . . . . 5

PCB CIRCUIT DIAGRAM . . . . . . . . . . . . . .

DISASSEMBLY ILLUSTRATION . . . . . . . .

PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . .

STANDARD ACCESSORIES . . . . . . . . . . . 14

1 2 3 4

7 9

Page 2

SPECIFICATIONS

TYPE

INDOOR UNIT

OUTDOOR UNIT

COOLING CAPACITY( ) : Range

HEATING CAPACITY( ) : Range

(COOL&HEAT INVERTER) (COOL&HEAT INVERTER)

ASH9LSACW ASH12LSACW

AOH9LSAC

(kW)

(kW) 3.6 (0.5~6.0) 4.8 (0.9~6.6)

2.6 (0.5~3.6) 3.5 (0.9~4.2)

AOH12LSAC

ELECTRICAL DATA

POWER SOURCE

FREQUENCY

RUNNING CURRENT

INPUT WATTS

EER

MOISTURE REMOVAL

AIR CIRCULATION-Hi

(A)

(kW)

(kW/kW)

(V) 230

(Hz)

COOLING 3.0

HEATING

COOLING

HEATING

COOLING 3.82 3.40

HEATING

( /hr)

(m3/hr)

3.6

0.68 (0.25~1.38) 1.03 (0.25~1.61)

3.96 3.61

1.3

C 630 H665

4.6

5.8

1.33 (0.25~2.30)0.91 (0.25~1.96)

1.8

C 630 H700

COMPRESSOR

TYPE Hermetic type,4 pole, 3 phase , DC brushles motor

DISCRIMINATION 80206680

REFRIGERANT R410A

Note : Always use a vacuum pump to purge the air.

Refrigerant for purging the air is not charged in the outdoor unit at the factory.

(g)

950

80206680

1100

FAN MOTOR

POWER SOURCE (V) 230

HI-SPEED

INDOOR UNIT

(r.p.m.)

OUTDOOR UNIT 830

MED-SPEED

LO-SPEED

QUIET

(r.p.m.)

C 1,350 H 1,420

C 1,150 H 1,200

C 950 H 1,000

C 740 H 900

DIMENSIONS

INDOOR UNIT H x W x D (mm)

OUTDOOR UNIT 535 x 780 x 250

H x W x D (mm)

280 x 790 x 230

WEIGHTS

INDOOR UNIT

OUTDOOR UNIT

GROSS / NET (kg)

12 / 9

35 / 33 37 / 34

NOISE LEVEL

HI-SPEED

(dB)

MED-SPEED

LO-SPEED

QUIET

(dB)

INDOOR UNIT

OUTDOOR UNIT

Note : Noise was measured in accordance with JIS standards, Japan.

C 42 H 42

C 37 H 36 C 39 H38

C 31 H 30 C 32 H 33

C 23 H 26 C 26 H 29

C 47 H 49

C 1,400 H 1,470

C 1,200 H 1,290

C 1,000 H 1,110

C 820 H 980

C 43 H 43

2005.02.21

MAX PIPE LENGTH

ADDITIONAL REFRIGERANT

15 m

None

Page 3

DIMENSIONS

Models : ASH9LSACW / AOH9LSAC

ASH12LSACW / AOH12LSAC

790 230

280

302

540 120

780 55

535

272

250

2005.02.21

Page 4

CIRCUIT DIAGRAM

Models : ASH9LSACW / AOH9LSAC

ASH12LSACW / AOH12LSAC

INDOOR UNIT

OUTDOOR UNIT

Thermistor (discharge pipe)

Thermistor (pipe)

Thermistor (outdoor temp.)

Controller PCB

2005.02.21

Page 5

REFRIGERANT SYSTEM DIAGRAM

Models : ASH9LSACW / AOH9LSACW ASH12LSACW / AOH12LSACW

Muffler

(2 pass)

Compressor

Accumulator

Indoor heat exchanger

4way-valve

(2 pass)

Outdoor heat exchanger

Capillary tube

2way-valve3way-valve

Strainer Dryer

Pulse motor valve

2005.02.21

Page 6

ERROR CONTENTS

Self-diagnosis function table (Flashing LED Display)

Applicable model : ASH9LSACW, ASH12LSACW

* Detailed Trouble Display (secondary level) can be indicated by pressing Test Operation button.

Trouble Display (primary) Detailed Trouble Display (by Test Button)

Error

Serial signal Normal 1 sec error blinking

Indoor unit 0.5sec 0.1sec thermistor 2 times blinking

Operation

Timer Error

Serial reverse signal error at operation start up

Signal reverse signal error during operation

Serial forward signal error at operation start up

Serial forward signal error during operation

Indoor temperature thermistor open

Operation

0.1sec 0.5sec blinking 2 times

0.1sec blinking

0.1sec 0.5sec blinking 2 times

error

Outdoor unit 0.5sec 0.1sec thermistor 3 times blinking

Pipe thermistor open or short

Discharge thermistor open or short

0.1sec 0.5sec blinking 3 times

0.1sec 0.5sec blinking 2 times

error

Heat exchanger thermistor open

0.1sec 0.5sec blinking 3 times

Timer

0.5sec 3 times

0.5 sec 4 times

0.5sec 5 times

Detailed Error Item

Normal Serial Reverse Signal can not be received more than 10 secs

>>Releases when it becomes normal

Normal Serial Reverse Signal can not be received more than 7 secs (after receiving effective reverse transfer signal) >>Releases when it becomes normal

Normal Serial Forward Signal can not be received more than 10 secs

>>Releases when it becomes normal

Normal Serial Forward Signal can not be received more than 10 secs ( after receiving effective forward transfer signal) >>Releases when it becomes normal

Thermistor detection value is open when AC plug is inserted

IndoorIndoorIndoorIndoorIndoor OutdoorOutdoorOutdoor

>>Releases when value becomes normal

Thermistor detection value is open or short when AC plug is inserted

>>Releases when value becomes normal

Thermistor detection value is open or short

>>Outdoor unit stops

Releases when it becomes normal

Thermistor detection value is open

Indoor unit 0.5sec 0.1sec control error 4 times blinking

2005.02.21

Outdoor temperature thermistor open or short

Forced automatic SW welded

Main relay welded

Power interruption error

0.1sec 0.5sec blinking 4 times

0.1sec 0.5sec blinking 2 times

0.1sec 0.5sec blinking 3 times

0.1sec 0.5sec blinking 4 times

>>Outdoor unit stops

Releases when it becomes normal

Thermistor detection value is open or short

>>Outdoor unit stops

Releases when it becomes normal

Forced Auto SW is ON for more than 10 secs continuously

>>Error is indicated while it is ON Normal Operation other than error indication

Serial Reverse Signal is received 1 min. after Main relay becomes OFF

>>Error is indicated while serial reverse

signal is input on normal operation

Normal operation except error indication

50/60Hz is not detected after 2 secs of power ON.

>>Error is indicated and unit is stopped

Page 7

Trouble Display (primary) Detailed Trouble Display (by Test Button)

Error

Outdoor unit 0.5sec 0.1sec

Operation

Timer Error

Current trip

Operation

Timer

0.1sec 0.5sec

control error 5 times blinking blinking 2 times

CT abnormal

0.1sec 0.5sec blinking 3 times

0.1sec 0.5sec blinking 5 times

0.1sec 0.5sec

Indoor fan 0.5sec 0.1sec

Compressor rotation error

Abnormal lock

motor error 6 times blinking blinking 2 times

Abnormal rotation

0.1sec 0.5sec blinking 3 times

Refrigerant 0.5sec 0.1sec cycle error 7 times blinking blinking 2 times

Optional 0.5sec 0.1sec function 8 times blinking blinking 2 times

Discharge temperature abnormal

Cooling high pressure abnormal rise

Active filter voltage abnormal (3rd time)

0.1sec 0.5sec

0.1sec 0.5sec blinking 3 times

0.1sec 0.5sec

error

Active filter voltage abnormal (1st time)

0.1sec 0.5sec blinking

3 times

Detailed Error Item

Current trip error is 2nd time within start up

>>Permanent stop

Current detection value is 0A for more than 1 sec when compressor is operated at more than 90rps >>Outdoor unit is stopped until power supply to Outdoor unit is stopped

Compressor location detection error (incl. failed start up) for 3 times

>>Permanent stop

Detected rotation is 0 r.p.m. at start up or at 56 secs after Fan mode is selected

IndoorIndoor OutdoorOutdoorOutdoorOutdoorOutdoorOutdoorOutdoor

>>Permanent stop

Detected rotation is 1/3 of target r.p.m. at start up or at 56 secs after Fan mode is selected

>>Permanent stop

Discharge Temperature protection (Discharge temperature is 110degC) operated 2 times >>Permanent stop

High pressure rise protection (Outdoor heat exchanger temperature is 65degC) operated >>Comp. OFF (releases after 3min.ST) Error is indicated while 3 min.ST

Active Filter voltage error operated 3 times

>>Permanent stop Active Filter Module error or open

detection protection operated

2005.02.18

>>Automatic release after 3 min. ST

Page 8

INDOOR PCB CIRCUIT DIAGRAM

TERMINAL BOARD

RED

GREEN

BLUE

GREEN / YELLOW

WHITE

BLACK

BROWN

POWER SOURCE 220 / 240V 50Hz

CONTROLLER PCB ASEMBLY (MAIN PCB) ASH9LSACW : EZ-00219HSE-C ASH12LSACW : EZ-0021CHSE-C

THERMAL FUSE

I C 1

uPD780024SGB-X09

GRAY

ROOM TEMPERATURE THERMISTOR

BLACK

PIPE TEMPERATURE THERMISTOR

GRAY

FAN MOTOR

RED

BLACK

WHITE

YELLOW

BLUE

REMOTE CONTROL CUSTOM CODE

AUTO RESTART

RED

WHITE

RED

ORANGE

YELLOW

PINK

BLUE

INDICATOR PCB EZ-00219HSE-D (F)

LOUVER

2005.02.21

Page 9

POWER SOURCE 220 - 240V 50Hz

CONTROLLER PCB ASSEMBLY ( MAIN PCB) AOH9LSAC : EZ-002LHUE-C AOH12LSAC : EZ-002GHUE-C

SC-10-55JH

N200500K

OUTDOOR PCB CIRCUIT DIAGRAM

2005.02.21

MB90462-117

AOY9LSAC

AOY12LSAC

Page 10

Models : ASH9LSACW ASH12LSACW

DISASSEMBLY ILLUSTRATION

2005.02.21

Page 11

Models : ASH9LSACW ASH12LSACW

2005.02.21

Page 12

Models : AOH9LSACW AOH12LSACW

2005.02.21

Page 13

INDOOR UNIT

PARTS LIST

Ref.

Description

No.

1 Air Filter-L 2

Air Filter-R

4 Guide (Filter)-L

Guide (Filter)-R

5 9311254010 6 9311025023

Grille (Top)-L

Grille (Top)-R

8 9311903048

Front Panel Assy

9 9311784043

Emblem-A 10 Emblem-B 9311785026 11 Bearing (Panel)-L 9311029014

12 Bearing (Panel)-R 13 Grille (Intake)-L

Grille (Intake)-R

14 9311783039 15 Shaft (Grille)-L

Shaft (Grille)-R

16 9311149019

Gear-A

20 9309994003 21 Casing Assy 9312112036 23 Cover (Casing)-B 9311916017 24 Cross Flow Fan Assy 9307836015

25 Motor Cushion-B 9306274009

26 Clamper (Motor) 9310102008 27 Shaft Holder-C Assy 9306628017 28 Drain Hose Assy

Drain Cap Assy

29 9304150008

Wire Clamper

30 9311946014 31 Box (Switch) 9309996014 32 Cover (Switch) 9311863014 33 Evaporator Total Assy 9311495017 36 Joint Pipe Assy-E 9311497011 37 9304607007

Insulation(Pipe)-E

ASH9LSACW ASH12LSACW

9311027010 9311028017 9311180012

9311026020

9311030010 9311782049

9305435012

9310357019

Part No.

Ord.

Q'ty

9311027010 9311028017 9311180012 9311254010 9311025023 9311026020 9311903048 9311784043 9311785026 9311029014

9311030010 9311782049 9311783039 9305435012 9311149019 9309994003 9312112036 9311916017 9307836015

9306274009

9310102008 9306628017 9310357019 9304150008 9311946014 9309996014 9311863014 9311495017 9311497011 9304607007

2005.02.21

38 Holder (Evaporator)-L 39 9309983014

Holder (Evaporator)-R

Water Seal

Air Seal

Terminal

Step Motor

Fan Motor Assy

48 51 9312058013

Remote Control Unit 52 Bracket Panel 9310001004 61-1 Flow Control Panel-U 9330009011

61-2 9309992023

Flow Control Panel-Z

188 Power Cord 9900001025 9900070038 236 Controller PCB Assy 9705001053

--- Pipe Thermister 9702039011 9702039011

--- Room Thermister 9700801108 9700801108

--- Indicator PCB 9704838032 9704838032

When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column.

9309982017

9310721001 9310611005 9701955077 9900139025

9601351016

9309982017 9309983014

9310721001 9310611005 9701955077 9900139025

9601351016 9312058013 9310001004 9330009011

9309992023

9705001060

Page 14

OUTDOOR UNIT

Ref.

No.

Blow Grill

Grip 9302061016

Cabinet Front Panel, Painted

Electric Cover 9310979013

Cabinet Rear Panel, Painted 10 12 14 16 17

23 Inverter PCB Assy 9705092020 9705092013 24 Thermistor (Discharge) 9704219060 9704219060 28 Solenoid Coil 9970033018 9970033018 29 Coil (Expansion Valve) 9900057015 9900057015 39 Propeller Fan 9309909014 9309909014 39-1 Inverter Cover 9311017011 9311017011 40 Inverter Base 9311015017 9311015017 41 Fan Motor Assy 9601474012 9601474012 42 Bracket (Motor) 9306047023 9306047030 46 Compressor Assy 9312448012 9312448012

Pulse Motor Valve 9900056018 9900056018

Base Assy, Painted

2-Way Valve Assy 9310084014 9310084014

Condenser Sub Assy

3-Way Valve Assy 9311487012 9311487012

Description

AOH9LSAC AOH12LSAC

9309929012 9309929012

9309928053 9309928053

9309870024

9310248027

9312586028

Part No.

9302061016

9310979013 9309870024

9310248027

9312586011

Ord.

Q'ty

84 Thermistor (Condenser) 9704220011 9704220011 98 Fan Ring 9309876026 9309876026

138 Separate Wall 9311013013 9311013013 344 4-Way Valve 9900047016 9900047016 527 Protective Net 9310980019 9310980019 734 Panel Top, Painted 9310338063 9310338063

--- Emblem 9312635016 9312635016

---

--- Controller PCB 9705093218 9705093201

--- ACTPM PCB 9703457012 9703457012

--- TR PCB Assy 9705553019 9705553019

--- Diobe Bridge PCB 9705094017 9705094017

---

Inverter capacitor 9704594013 9704594013

Fan capacitor 9900042011 9900042011

Outdoor Thermister 9703516061 9703516061

(EZ-002LHUE-C) (EZ-002GHUE-C)

(K04AK-0400HUE-TRO)

(EZ-002GHUE-DB) (EZ-002GHUE-DB) Noise Filter beside compressor 0400056119 0400056119 Noise Filter beside diobe bridge PCB

When you order parts, please make a photocopy of this page and fill the number of the parts in the "Order" column.

0400056133 0400056133

2005.02.21

Page 15

STANDARD ACCESSORIES

Part No.

Name and Shape

Wall hook bracket

Remote control unit

Battery (penlight)

Cloth tape

ASH9LSACW ASH12LSACW

9312752010

9312058013

0600185534

9310519004

Tapping screw ( 4 x 25 )

0700076046

2005.02.21

Page 16

0304G2230