lg room air conditioner€¦ · lg room air conditioner service manual lg models: as-w0964dh0...

LG Room Air ConditionerSERVICE MANUAL

LG

MODELS: AS-W0964DH0AS-W1264DH0AS-W1865DH0AS-W0964GH0 AS-W1264GH0 AS-W1224DH0 AS-W1424DH0AS-W1825DH0

CAUTION

website http://www.lgservice.com

• BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

2 Room Air Conditioner

Air Conditioner Service Manual

TABLE OF CONTENTS

LG Model Name.................................................................................................................................3

Safety Precautions ...........................................................................................................................5

Dimensions .....................................................................................................................................10

Installation.......................................................................................................................................14

Flaring work and connection of piping.........................................................................................16

Connecting the cable between indoor unit and outdoor unit.....................................................21

Checking the drainage and forming the pipings .........................................................................23

Air purging ......................................................................................................................................24

Test running ....................................................................................................................................26

Functions.........................................................................................................................................27

Operation.........................................................................................................................................30

Disassembly ....................................................................................................................................41

Troubleshooting Guide ..................................................................................................................44

Schematic Diagram ........................................................................................................................65

Product Specifications ..................................................................................................................73

Exploded View ................................................................................................................................75

Replacement Parts List ..................................................................................................................78

Service Manual 3

LG Model Name

LG Model Name2003

1 2 - 3 4 5 6 7 8 9 10

Code Type Code of Model Meaning

1 Producing Center, A~Z L: Chang-won R22 N: IndiaRefrigerant A: Chang-won R410A Z: Brazil

C: Chang-won R407C D: IndonesiaT: China M: MexicoK: Turkey R22 V: VietnamE: Turkey R410A S: Out SourcingH: Thailand

2 Product Type A~Z S: Split Type Air Conditioner

3 Cooling/Heating/Inverter A~Z C: Cooling onlyH: Heat pumpX: C/O + E/HeaterZ: H/P + E/Heater

V: AC Inverter C/ON: AC Inverter H/PQ: DC Inverter C/OW: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating CapacityEx. "09" →9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3PhaseA~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase6: 220-240V/50Hz E: 265V, 60Hz7: 110V, 50/60Hz F: 200V, 50/60Hz8: 380-415V/50Hz9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of UnitEx. LSP →SP Chassis

8 Look A~Z Look,Color (Artcool Model)

9 Function A~Z

10 Serial No. 0~9 LG Model De

* ARTCOOL COLOR

velopment Serial No.

Basic ABasic+4Way BPlasma Filter CPlasma Filter+4 Way DTele+LCD ETele+LCD+Nano plasma+4Way FNano Plasma F+(A/changeove)+A/clean+Low A GNano Plasma F+(A/changeove)+A/clean+4way+Low A HTele+LED+4way IInternet JPlasma F+4Way+Oxy generator KNano Plasma F+(A/changeove)+A/clean LNano Plasma F+(A/changeove)+A/clean+4way MNano Plasma F+(A/changeove)+A/clean+PTC NNano Plasma F+(A/changeove)+Autoclean+4way+PTC PNano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC QNegative ION+A/Clean R(Nano)Plasma+Negative ION+A/Clean S4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean TNano Plasma F+4Way+(A/changeove)+A/clean+ U

R MirrorW WhiteB BlueD WoodM MetalC Cherry

N WalnutA GoghS SisleyQ QuranK Mecca


LG Model Name

2004~

1 2 - 3 4 5 6 7 8 9 10

Code Type Code of Model Meaning

1 Producing Center, A~Z L Chang_won R22 A Chang_won R410A C Chang_won R407C T China K Turkey R22 E Turkey R410A H Thailand

N India Z Brazil D Indonesia X Mexico V Vietnam S Out sourcing

Refrigerant

2 Product Type A~Z S: Split Type Air Conditioner

3 Cooling/Heating/Inverter A~Z C: Cooling onlyH: Heat pumpX: C/O + E/HeaterZ: H/P + E/Heater

V: AC Inverter C/ON: AC Inverter H/PQ: DC Inverter C/OW: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating CapacityEx. "09" →9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3PhaseA~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase6: 220-240V/50Hz E: 265V, 60Hz7: 110V, 50/60Hz F: 200V

CHASSIS LookDKLGMNDP

DivisionPanel Type(Deluxe)Fighting 'Look'(LG1)(LG2)-SEMI PANELOEM1OEM2Panel Type(Deluxe)LG3

, 50/60Hz8: 380-415V/50Hz9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of UnitEx. LSP →SP Chassis

8 Look A~Z Look,Color (Artcool Model)

9 Function A~Z

10 Serial No. 0~9 LG Model De

* ARTCOOL COLOR

velopment Serial No.

R MirrorW WhiteB BlueD WoodM MetalC Cherry

S4/S5S6SQSRST

Basic ABasic+4Way BPlasma Filter CPlasma Filter+4 Way DTele+LCD ETele+LCD+Nano plasma+4Way FNBF F+(A/changeove)+A/clean+Low A GNBF F+(A/changeove)+A/clean+4way+Low A HTele+LED+4way IInternet JPlasma F+4Way+Oxy generator KNBF F+(A/changeove)+A/clean LNBF F+(A/changeove)+A/clean+4way MNBF F+(A/changeove)+A/clean+PTC NNBF F+(A/changeove)+Autoclean+4way+PTC PNBF F+(A/changeove)+A/clean+4way+Low A+PTC Q(Nano)Plasma+ION+A/Clean S4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean TNano Plasma F+4Way+(A/changeove)+A/clean+Oxy generator U4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean+Oxy generator VDry contact WWire remocon 8

Service Manual 5

Safety Precautions

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions mustbe followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

Meanings of symbols used in this manual are as shown below.

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage to properties only.

Be sure not to do.

Be sure to follow the instruction.

Do not use damaged power cords, plugs, or aloose socket.

Always use the power plug and socket with theground terminal.

• There is risk of fire of electric shock. • There is risk of electric shock.

Install the panel and the cover of control boxsecurely.

Do not modify or extend the power cord.

• There is risk of fire of electric shock. • No grounding may cause electric shock.

Installation


Safety Precautions

Do not install the product on a defective instal-lation stand.

Be sure the installation area does notdeteriorate with age.

• It may cause injury, accident, or damage to theproduct.

• If the base collapses, the air conditioner could fallwith it, causing property damage, product failure,and personal injury.

• Sharp edges could cause injury. Be especially care-ful of the case edges and the fins on the condenserand evaporator.

• There is risk of fire, electric shock, explosion, or injury.

Be cautious when unpacking and installing theproduct.

For installation, always contact the dealer oran Authorized service center

For re-installation of the installed product,always contact a dealer or an authorized ser-vice center.

Do not install, remove, or re-install the unit byyourself.

• There is risk of fire, electric shock, explosion, orinjury.

• There is risk of fire, electric shock, explosion, orinjury.

Service Manual 7

Safety Precautions

Operation

Do not turn the air-conditioner ON or OFF byplugging or unplugging the power plug.

Use a dedicated outlet for this appliance.

• There is risk of fire or electrical shock. • There is risk of fire or electrical shock.

Grasp the plug to remove the cord from theoutlet. Do not touch it with wet hands.

Do not place a heater or other appliances nearthe power cable.

• There is risk of fire or electrical shock. • There is risk of fire and electric shock.

Do not allow water to run into electrical parts. Do not store or use flammable gas or com-bustibles near the air conditioner.

• There is risk of fire, failure of the product, or electricshock.

• There is risk of fire or failure of product.

Wax Thinner


Always check for gas (refrigerant) leakage afterinstallation or repair of product.

Install the drain hose to ensure that water isdrained away properly.

• Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage.

Keep level even when installing the product. Use two or more people to lift and transportthe air conditioner.

• To avoid vibration or water leakage. • Avoid personal injury.

Installation

90˚

Unplug the unit if strange sounds, odors, orsmoke comes from it.

Be cautious that water could not enter theproduct.

• There is risk of electric shock or fire. • There is risk of fire, electric shock, or product dam-age.

Safety Precautions

Service Manual 9

Use a soft cloth to clean. Do not use harshdetergents, solvents, etc.

Do not touch the metal parts of the productwhen removing the air filter. They are verysharp!

• There is risk of fire, electric shock, or damage to theplastic parts of the product.

• There is risk of personal injury.

Do not step on or put anyting on the product.(outdoor units)

Do not insert hands or other objects throughthe air inlet or outlet while the air conditioneris plugged in.

• There is risk of personal injury and failure of product. • There are sharp and moving parts that could causepersonal injury.

Operation

Wax

Safety Precautions


Dimensions

Dimensions

Installation plate

D

H

W

W mm 840

H mm 270

D mm 153

Model

Dimension7k, 9k, 12k, 14k Btu Series

Indoor Unit

This symbol alerts you to the risk of electric shock.

This symbol alerts you to hazards that could cause harm to theair conditioner.

This symbol indicates special notes.NOTICE

Symbols Used in this Manual

Service Manual 11

Dimensions

Installation plate

D

H

W

W mm 1090

H mm 300

D mm 178

Model

Dimension18k, 24k Btu Series


W L2

L3

L1 D

H

L4

L5Gas side

(3-way valve)

Liquid side(2-way valve)

MODELDIM unit

W mm 770

H mm 540

D mm 245

L1 mm 285

L2 mm 65

L3 mm 518

L4 mm 10

L5 mm 100

Dimensions

Outdoor Unit

7k, 9k, 12k, 14k Btu Series

Dimensions

Service Manual 13

W

L7 L6 L8 L9

D L1L2

L3

L10

L11

L4L5

H

Gas side

Liquid side

MODELDIM

W mm 870

H mm 655

D mm 320

L1 mm 370

L2 mm 340

L3 mm 25

L4 mm 630

L5 mm 25

L6 mm 546

L7 mm 162

L8 mm 162

L9 mm 54

L10 mm 74.5

L11 mm 79

18k, 24k Btu Series


Installation

Installation

Indoor unit• Do not have any heat or steam near the unit.

• Select a place where there are no obstacles in front of theunit.

• Make sure that condensation drainage can be convenientlyrouted away.Do not install near a doorway.

• Ensure that the space around the left and right of the unit ismore than "A". The unit should be installed as high on thewall as possible, allowing a minimum of "B" from ceiling.

• Use a stud finder to locate studs to prevent unnecessarydamage to the wall.

Outdoor unit• If an awning is built over the unit to prevent direct sunlight

or rain exposure, make sure that heat radiation from thecondenser is not restricted.

• Ensure that the space around the back and sides is morethan 10cm. The front of the unit should have more than70cm of space.

• Do not place animals and plants in the path of the warm air.• Take the air conditioner weight into account and select a

place where noise and vibration are minimum.• Select a place so that the warm air and noise from the air

conditioner do not disturb neighbors.

Rooftop Installations:• If the outdoor unit is installed on a roof structure, be

sure to level the unit. Ensure the roof structure andanchoring method are adequate for the unit location.

• Consult local codes regarding rooftop mounting.

More than 10cm

More than5cm

More than 2.3m

More than5cm

• Capacity is based on standard length and maxi-mum allowance length is on the basis of reliability.

• Oil trap should be installed every 5~7 meters.

GradeClearance(cm)

A B5K~28K 10 530K~38K 30 12

Pipe SizeCapacity(Btu/h) GAS LIQUID

Max.LengthA (m)

AdditionalRefrigerant

(g/m)

Max.Elevation

B (m)

StandardLength

(m)

5k~14k3/8"(Ø9.52) 1/4"(Ø6.35) 4 or 7.5 7 15 20

1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 7 15 20

1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 15 30 20

18k~28k 5/8"(Ø15.88) 1/4"(Ø6.35) 4 or 7.5 15 30 20

5/8"(Ø15.88) 3/8"(Ø9.52) 4 or 7.5 15 30 30

30k~38k5/8"(Ø15.88) 3/8"(Ø9.52) 7.5 15 30 30

3/4"(Ø19.05) 3/8"(Ø9.52) 7.5 15 30 50

If case more than 5m

Outdoor unit

Indoor unit

A

B

Outdoor unit

Indoor unit

A

B

AOil trap

Outdoor unit

Indoor unitB

I

Selection of the Best Location

Piping Length and Elevation

Install the indoor unit on the wall where the heightfrom the floors more than 2.3 meters.

More than 10cm More than 10cm

More than 60cm

More than 60cm

More than 70cm

Service Manual 15

Installation

The wall you select should be strong and solidenough to prevent vibration

1. Mount the installation plate on the wall with fourtype A screws. If mounting the unit on a concretewall, use anchor bolts.• Mount the installation plate horizontally by aligning

the centerline using a level.

2. Measure the wall and mark the centerline. It isalso important to use caution concerning thelocation of the installation plate-routing of thewiring to power outlets is through the walls typi-cally. Drilling the hole through the wall for pip-ing connections must be done safely.

• Drill the piping hole with a ø70mm hole core drill.Drill the piping hole at either the right or the leftwith the hole slightly slanted to the outdoor side.

• Open the Front Grille.

• Pass Telephone Control Cord Wire through the holewhich the power cord goes through.

• Connect Telephone Control Cord Wire to the phone jackof telephone PCB of Control Box.

• Fix Telephone Control Cord Wire inside Control box soas not to disconnect.

• Close the Front Grille.

How to Fix Installation Plate Drill a Hole in the Wall

Drain hose junction

• Remove the rubber stopple in the desired drain direc-tion.

• Insert drain hose into the handle of drain pan, and joindrain hose and connecting hose according to the figureby.

Installation Plate

Type "A" screw

ChassisHook

5-7m

m

(3/1

6"~

5/16

")

Indoor

WALL

Outdoor

Installation plate

Left rear piping Right rear pipingØ70mm Ø70mm

D B

AC

Connectingpart

Adhesive

Drainhose

Only the desired direction

A B C D

7k, 9k, 12k, 14k 75 65 105 65

18k, 24k 105 65 260 65

CHASSIS(Grade)

Distance (mm)


Flaring work and connection of piping


Flaring workFlaring workMain cause for refrigerant leakage is due to defect in theflaring work. Carry out correct flaring work using the follow-ing procedure.

Cut the pipes and the cable.• Use the piping kit accessory or pipes purchased locally.• Measure the distance between the indoor and the outdoor unit.• Cut the pipes a little longer than the measured distance.• Cut the cable 1.5m longer than the pipe length. Check

• Compare the flared work with figure below.

• If flare is noted to be defective, cut off the flared sec-tion and re-flare it.

• Preparing the indoor unit's piping and drain hose for instal-lation through the wall.

• Remove the plastic tubing retainer(see illustration below)and pull the tubing and drain hose away from chassis.

• Replace the plastic tubing holder in the originalposition.(Optional)

• Carry out flaring work using flaring tool as shown below.

Burr removal• Completely remove all burrs from the cut cross section of

pipe/tube.

• Put the end of the copper tube/pipe in a downward direc-tion as you remove burrs in order to avoid dropping burrsinto the tubing.

Putting nut on• Remove flare nuts attached to indoor and outdoor unit,

then put them on pipe/tube having completed burr removal.(not possible to put them on after flaring work)

Flaring work• Firmly hold copper pipe in a die in the dimension shown in

the table above.

Copperpipe 90° Slanted Uneven Rough

Bar

Copper pipe

Clamp handleRed arrow mark

Cone

Yoke

Handle

Bar"A"

Inclined

Inside is shiny without scratches

Smooth all round

Even lengthall round

Surfacedamaged

Cracked Uneventhickness

= Improper flaring =

Drain hose

PipeReamer

Point down

Flare nut

Copper tube

mm inch mm

Ø6.35 1/4 0~0.5

Ø9.52 3/8 0~0.5

Ø12.7 1/2 0~0.5

Ø15.88 5/8 0~1.0

Ø19.05 3/4 1.0~1.3

Outside diameter A

Connection of piping -- Indoor

When install, make sure that theremaining parts must be removedclearly so as not to damage the pip-ing and drain hose, especially powercord and connecting cable.

Service Manual 17


Route the indoor tubing and the drain hose in the direction ofrear right.

Drain hose

Connectingcable

Vinyl tape(narrow)

Connectionpipe

Connecting cable

Vinyl tape(wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe

Plastic bands Insulation material

Vinyl tape(narrow)Adhesive

Drain pipe

Indoor unit drain hose

Wrench

Indoor unit tubing

Open-end wrench (fixed)

Connection pipe

Flare nut

Indoor unit tubing Flare nut PipesDrain hose

Connecting pipe

Connecting cable

Tape

Drain hose

Insert the connecting cable into the indoor unit from the out-door unit through the piping hole.

• Do not connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection later.

Tape the tubing, drain hose, and the connecting cable. Besure that the drain hose is located at the lowest side of thebundle. Locating at the upper side can cause drain pan tooverflow inside the unit.

NOTE: If the drain hose is routed inside the room, insulatethe hose with an insulation material* so that dripping from"sweating"(condensation) will not damage furniture or floors.

*Foamed polyethylene or equivalent is recommended.

Indoor unit installation• Hook the indoor unit onto the upper portion of the installa-

tion plate.(Engage the two hooks of the rear top of theindoor unit with the upper edge of the installation plate.)Ensure that the hooks are properly seated on the installa-tion plate by moving it left and right.

Press the lower left and right sides of the unit against theinstallation plate until the hooks engage into their slots(click-ing sound).

Connecting the pipings to the indoor unit anddrain hose to drain pipe.• Align the center of the pipes and sufficiently tighten

the flare nut by hand.

• Tighten the flare nut with a wrench.

• When extending the drain hose at the indoor unit, install thedrain pipe.

Wrap the insulation material around the con-necting portion.•Overlap the connection pipe insulation material and theindoor unit pipe insulation material. Bind them together withvinyl tape so that there is no gap.

• Wrap the area which accommodates the rear piping hous-ing section with vinyl tape.

mm inch kg.mØ6.35 1/4 1.8Ø9.52 3/8 4.2Ø12.7 1/2 5.5Ø15.88 5/8 6.6Ø19.05 3/4 6.6

Outside diameter Torque

For right rear piping



• Bundle the piping and drain hose together by wrappingthem with vinyl tape for enough to cover where they fit intothe rear piping housing section.

Connecting the pipings to the indoor unit andthe drain hose to drain pipe.• Align the center of the pipes and sufficiently tighten the

flare nut by hand.

• Tighten the flare nut with a wrench.

• When extending the drain hose at the indoor unit, install thedrain pipe.

Wrap the insulation material around the con-necting portion.• Overlap the connection pipe heat insulation and the indoor

unit pipe heat insulation material. Bind them together withvinyl tape so that there is no gap.

Route the indoor tubing and the drain hose tothe required piping hole position.

Insert the piping, drain hose, and the connect-ing cable into the piping hole.

Insert the connecting cable into the indoor unit.• Don't connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection later.

Indoor unit installation• Hang the indoor unit from the hooks at the top of the instal-

lation plate.

• Insert the spacer etc. between the indoor unit and theinstallation plate and separate the bottom of the indoor unitfrom the wall.

Tape the drain hose and the connecting cable.• Connecting cable

Drain pipe

Connecting cable


Drain hose

Pipe

Vinyl tape(wide)Indoor unit tubing Flare nut Pipes

Installation plate

SpacerIndoor unit

8cm

Plastic bands Insulation material

Vinyl tapeAdhesive

Drain hose

Indoor unit drain hose

(narrow)

Wrench

Indoor unit tubing

Connection pipe

Flare nut

Open-end wrench (fixed)

For left rear piping

mm inch kg.mØ6.35 1/4 1.8Ø9.52 3/8 4.2Ø12.7 1/2 5.5Ø15.88 5/8 6.6Ø19.05 3/4 6.6


Service Manual 19

Installation Information (For left piping)• Good case

For left piping. Follow the instruction below.

• Press on the upper side of clamp. ( )


• Wrap the area which accommodates the rear piping hous-ing section with vinyl tape.

Indoor unit installation• Remove the spacer.

• Ensure that the hooks are properly seated on the installa-tion plate by moving it left and right.

Press the lower left and right sides of the unit against theinstallation plate until the hooks engage into theirslots(clicking sound).• Bundle the piping and drain hose together by wrapping

them with cloth tape over the range within which they fitinto the rear piping housing section.

Reroute the pipings and the drain hose acrossthe back of the chassis.

Set the pipings and the drain hose to the backof the chassis with the tubing holder.• Hook the edge of tubing holder to tap on chassis and push

the bottom of tubing holder to be engaged at the bottom ofchassis.

Vinyl tape(narrow)

Connectionpipe

Connecting cable

Indoor unit piping

Pipe

Vinyl tape(wide)


Drain hoseVinyl tape(narrow)

Pipe

Wrap with vinyl tape(wide)

Piping forpassage throughpiping hole

Tubing holder

Drain hose

Connectingcable

• Unfold the tubing to downward slowly. ( )

• Bend the tubing to the left side of chassis.



Align the center of the pipings and sufficientlytighten the flare nut by hand.

Finally, tighten the flare nut with torque wrenchuntil the wrench clicks.

• When tightening the flare nut with torque wrench, ensurethe direction for tightening follows the arrow on the wrench.

• Bad case

• Following bending type from right to left could causeproblem of pipe damage.

Connection of the pipes-Outdoor

mm inch kg.mØ6.35 1/4 1.8Ø9.52 3/8 4.2Ø12.7 1/2 5.5Ø15.88 5/8 6.6Ø19.05 3/4 6.6


Outdoor unit Gas side piping(Bigger diameter)

Liquid sidepiping(Smallerdiameter)

Torque wrench

Service Manual 21

Connect the cable to the Indoor unit.

Connecting the cable between indoor unit and outdoor unit


Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individuallyaccording to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No.are the same as those of the indoor unit.)

• The above circuit diagram is subject to change without notice.

• The earth wire should be longer than the common wires.

• When installing, refer to the circuit diagram behind the panel front of the indoor unit.

• Connect the wires firmly so that they may not be pulled out easily.• Connect the wires according to color codes, referring to the wiring diagram.

If a power plug is not used, provide a circuitbreaker between power source and the unit asshown by.

The power cord connected to the "A" unit should be selected according to the following specifications(Type "B"approved by HAR or SAA).

The power connecting cable connecting the indoor and outdoor unit should be selected according to the followingspecifications (Type "B" approved by HAR or SAA).

Air Conditioner

Main power source

7k 9k~14k 18k 24k

0.75 1.0 1.5 2.5

Unit(A) Indoor Indoor Indoor Indoor

Cable Type(B) H05VV-F H05VV-F H05VV-F H05VV-F

NORMAL CROSS-SECTIONAL AREA

Grade

(mm2)

7k 9k~14k 18k 24k

0.75 1.0 1.5 2.5

Cable Type(B) H07RN-F H07RN-F H07RN-F H07RN-F

NORMAL CROSS-SECTIONAL AREA

Grade

(mm2)

Circuit BreakerUse a circuitbreaker or timedelay fuse.



Remove the control cover from the unit byloosening the screw.

Connect the wires to the terminals on the con-trol board individually.

Secure the cable onto the control board withthe cord clamp.

Refix the control cover to the original positionwith the screw.

Use a recognized circuit breaker "A"between the power source and the unit.A disconnecting device to adequately discon-nect all supply lines must be fitted.

Terminal block

Over 5mm

Cover control

Connecting cable

Connecting cable

After the confirmation of the above conditions, prepare the wiring as follows:1) Never fail to have an individual power circuit specifically for the air conditioner. As for the method of wiring,

be guided by the circuit diagram posted on the inside of control cover.2) The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations

to which the unit is subjected during the course of transportation. Check them and make sure that they areall tightly fastened. (If they are loose, it could cause burn-out of the wires.)

3) Specification of power source.4) Confirm that electrical capacity is sufficient.5) See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the

name plate.6) Confirm that the cable thickness is as specified in the power source specification.

(Particularly note the relation between cable length and thickness. (Refer to page 21))7) Always install an earth leakage circuit breaker in a wet or moist area.8) The following would be caused by voltage drop.

• Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal func-tion of the overload.

9) The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an airgap contact separation of at least 3mm in each active(phase) conductors.

Outdoor UnitConnect the cable to the outdoor unit

5k~14k 18k 24k~28k 30k, 32k 36k, 38k15 20 30 30 40

CircuitBreaker

(A)

Grade

Service Manual 23

Checking the drainage and forming the pipings

Checking the drainage and forming the pipings

Checking the drainage Form the pipingTo remove the front panel from the indoor unit.• Set the air direction louvers up-and-down to the

position(horizontally) by hand.

• Remove the securing screws that retain the front panel.Pull the lower left and right sides of the grille toward youand lift it off.

Form the piping by wrapping the connectingportion of the indoor unit with insulation mate-rial and secure it with two kinds of vinyl tapes.• If you want to connect an additional drain hose, the end of

the drain outlet should be routed above the ground. Securethe drain hose appropriately.

In cases where the outdoor unit is installedbelow the indoor unit perform the following.• Tape the piping, drain hose and connecting cable from

down to up.

• Secure the tapped piping along the exterior wall using sad-dle or equivalent.

To check the drainage.• Pour a glass of water on the evaporator.

• Ensure the water flows through the drain hose of the indoorunit without any leakage and goes out the drain exit.

In cases where the Outdoor unit is installedabove the Indoor unit perform the following.• Tape the piping and connecting cable from down to up.

• Secure the taped piping along the exterior wall. Form a trapto prevent water entering the room.

• Fix the piping onto the wall by saddle or equivalent.

Drain piping• The drain hose should point downward for easy drain flow.

• Do not make drain piping.

Pull the right andthe left side.

Downward slope

Do not raiseAccumulateddrain water

Tip of drain hose dipped in water

Air

WavingWaterleakage

Waterleakage Ditch

Less than 50mm gap

Waterleakage

Taping

Drainhose

Pipings

Connectingcable

Trap is required to prevent waterfrom entering into electrical parts.

Seal small openingsaround pipings with agum type sealer.

Seal a small opening around the pipings with gum type sealer.

Trap

Trap


Air purging

Air and moisture remaining in the refrigerant system haveundesirable effects as indicated below.

• Pressure in the system rises.

• Operating current rises.

• Cooling(or heating) efficiency drops.

• Moisture in the refrigerant circuit may freeze and block cap-illary tubing.

• Water may lead to corrosion of parts in the refrigerationsystem.

Therefore, the indoor unit and tubing between the indoor andoutdoor unit must be leak tested and evacuated to removeany noncondensables and moisture from the system.

• Do a leak test of all joints of the tubing(both indoor and out-door) and both gas and liquid side service valves.Bubbles indicate a leak. Be sure to wipe off the soap with aclean cloth.

• After the system is found to be free of leaks, relieve thenitrogen pressure by loosening the charge hose connectorat the nitrogen cylinder. When the system pressure isreduced to normal, disconnect the hose from the cylinder.

Preparation• Check that each tube(both liquid and gas side tubes)

between the indoor and outdoor units have been properlyconnected and all wiring for the test run has been complet-ed. Remove the service valve caps from both the gas andthe liquid side on the outdoor unit. Note that both the liquidand the gas side service valves on the outdoor unit arekept closed at this stage.

Leak test• Connect the manifold valve(with pressure gauges) and dry

nitrogen gas cylinder to this service port with charge hoses.

• Pressurize the system to no more than 150 P.S.I.G. withdry nitrogen gas and close the cylinder valve when thegauge reading reached 150 P.S.I.G. Next, test for leakswith liquid soap.

Air PurgingAir purging

Air purging with vacuum pump

Be sure to use a manifold valve for air purging. If it is notavailable, use a stop valve for this purpose. The "Hi" knobof the manifold valve must always be kept close.

To avoid nitrogen entering the refrigerant system in a liquidstate, the top of the cylinder must be higher than its bottomwhen you pressurize the system. Usually, the cylinder isused in a vertical standing position.

Lo Hi

Indoor unit

Outdoor unit

Manifold valve

Charge hose

Nitrogen gascylinder(in verticalstanding position)

Pressure gauge

Service Manual 25

Air purging

Evacuation• Connect the charge hose end described in the preceding

steps to the vacuum pump to evacuate the tubing andindoor unit.Confirm the "Lo" knob of the manifold valve is open. Then,run the vacuum pump.The operation time for evacuation varies with tubing lengthand capacity of the pump. The following table shows thetime required for evacuation.

• When the desired vacuum is reached, close the "Lo" knobof the manifold valve and stop the vacuum pump.

Finishing the job

• With a service valve wrench, turn the valve stem of liquidside valve counter-clockwise to fully open the valve.

• Turn the valve stem of gas side valve counter-clockwise tofully open the valve.

• Loosen the charge hose connected to the gas side serviceport slightly to release the pressure, then remove the hose.

• Replace the flare nut and its bonnet on the gas side serviceport and fasten the flare nut securely with an adjustablewrench. This process is very important to prevent leakagefrom the system.

• Replace the valve caps at both gas and liquid side servicevalves and fasten them tight.

This completes air purging with a vacuum pump.The air conditioner is now ready to test run.

(1) Remove the caps from the 2-way and 3-way valves.

(2) Remove the service-port cap from the 3-way valve.

(3) To open the 2-way valve turn the valve stem counter-clockwise approximately 90°, wait for about 2~3 sec, andclose it.

(4) Apply a soap water or a liquid neutral detergent on theindoor unit connection or outdoor unit connections by asoft brush to check for leakage of the connecting pointsof the piping.

(5) If bubbles come out, the pipes have leakage.

Soap water methodGas side

Liquid side

Cap

Hexagonal wrench

2-way valve(Open)

3-way valve(Close)

Required time for evacuation when 30 gal/h vacuumpump is used

10 min. or more 15 min. or more

If tubing length is less than 10m (33 ft) if tubing length is longer than 10m (33 ft)

Indoor unit

Outdoor unit

Lo Hi

Manifold valve

Vacuum pump

Pressure gauge

Open Close


Test running

Test Running1. Check that all tubing and wiring have been properly con-

nected.

2. Check that the gas and liquid side service valves are fullyopen.

Settlement of outdoor unit

• Anchor the outdoor unit with a bolt and nut(ø10mm) tightlyand horizontally on a concrete or rigid mount.

• When installing on the wall, roof or rooftop, anchor themounting base securely with a nail or wire assuming theinfluence of wind and earthquake.

• In the case when the vibration of the unit is conveyed to thehose, secure the unit with an anti-vibration bushing.

NOTE: If the actual pressure is higher than shown, the system ismost likely over-charged, and charge should be removed.If the actual pressure are lower than shown, the system ismost likely undercharged, and charge should be added.

The air conditioner is now ready for use.

Power-Failure Compensation Function User Selection ON/OFF

1) Operation Sequence

Press the forced switch until BUZZER sounds 2 times(beep~beep~).

Release the forced switch if BUZZER sounds.

Check the function selection ON/OFF with the operation LED.

2) Checking function-selection ON/OFF

- Function-Selection ON: One time blinking of operation LEDwould repeat 4 times.

- Function-Selection OFF: Two times blinking of operation LEDwould repeat 4 times.

Evaluation of the performanceOperate unit for 15~20 minutes, then check the systemrefrigerant charge:

1. Measure the pressure of the gas side service valve.

2. Measure the temperature of the intake and discharge of air.

3. Ensure the difference between the intake temperature andthe discharge is more than 8°C(46°F) (Cooling) or(Heating).

4. For reference; the gas side pressure of optimum conditionis as below.(Cooling)

Bolt

Tubing connection

Discharge temperature

Discharge air

Intake temperature

R-22 35°C (95°F) 4~5kg/cm2G(56.8~71.0 P.S.I.G.)R-410A 35°C (95°F) 8.5~9.5kg/cm2G(120~135 P.S.I.G.)

Outside ambientTEMP.Refrigerant The pressure of the gas side

service valve.

This is performed when the unit is to be relocated orthe refrigerant circuit is serviced.Pump Down means collecting all refrigerant in the outdoorunit without loss in refrigerant gas.

CAUTION:Be sure to perform Pump Down procedure with the unitcooling mode.

Pump Down Procedure1. Connect a low-pressure gauge manifold hose to the

charge port on the gas side service valve.

2. Open the gas side service valve halfway and purge the airfrom the manifold hose using the refrigerant gas.

3. Close the liquid side service valve(all the way in).

4. Turn on the unit's operating switch and start the coolingoperation.

5. When the low-pressure gauge reading becomes 1 to0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the gas sidevalve stem and then quickly turn off the unit. At that time,Pump Down has been completed and all refrigerant gaswill have been collected in the outdoor unit.

PUMP DOWN

Powerbutton

Service Manual 27

Functions

Functions

• Room temperature sensor. (Thermistor)• Pipe temperature sensor. (Thermistor)

• Maintain the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 sec at the starting.

• Restarting is for approx. 2 minutes.

• Super High, High, Med, Low

--- Lights up in operation--- Lights up in Sleep Mode (Optional)--- Lights up in Timer Mode

--- Lights up in Preheat Mode (for Heating Model)

--- Lights up in Plasma Air Clean Mode

--- Lights up in during Energy-Saving Cooling Mode Operation (Optional)

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting the Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Operation indication Lamps (LED)

Cooling Mode Operation

Healty dehumidification Mode Operation

Heating Mode Operation

Jet Cool Mode Operation

Jet Heat Mode Operation

Energy Saving Cooling Mode Operation


Functions

• Both the indoor and outdoor fan stops during defrosting.

Defrost(Deice) Control (Heating)

Hot-start Control (Heating)

Heater (Optional)

Plasma

Auto Clean(Optional)

Horizontal airflow Direction Control(Optional)

Energy-Saving Control(Optional)

Auto Changeover

• The fan is switched to low(Cooling), low(Heating) speed.• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.

• The fan is switched to intermittent or irregular operation• The fan speed is automatically switched from high to low speed.

• The louver can be set at the desired position or swing up and down automatically.

Sleep Mode Auto Control

Natural Air Control by CHAOS Logic

Airflow Direction Control

• The function will be operated while in any operation mode with selecting the function.• The function is to be stopped while it isoperating with selecting the function.

• The indoor fan stops until the evaporator pipe temperature will be reached at 34°C.

Service Manual 29

Functions

• If power is on, it will operate to chage capacitor on controller and power relay will operate after about 2~5sec.

• The active power filter is designed to correct power factor(cos θ) and to regulate DC link voltage.• It will be operated PFC circuit when the compressor freq. is over 30Hz and wattage is over 450 watt.

• The final operating freq. of comp. is set the lowest freq. that limited outdoor temp., discharge pipe temp.,heat-sink temp., target freq., owing to CT.

• It will be changed the drive freq. of comp. according to temp. of indoor and outdoor.

• It is only operated in the heating operation mode except defrosting operation.

• High speed- Although fan motor speed is middle, it will change high speed in case of below AC193V, over 45°C of

outdoor temp., and over fc, fh of comp. Freq.• Middle speed

- Nomal mode• Low speed

- Although fan motor speed is middle, it will change Low speed in case of over AC 270V, over 21°C(Heating Mode) of outdoor temp. below 24°C (Cooling Mode) of outdoor temp.

• When the temp. of power module increases to 85°C, controller decreases Freq. of Comp.

Outdoor Unit

Power Relay Control

Active Power Filter Control(PSC)

Comp. Freq. Control

OverheatIng. Protection(Power Module)

Freq. Speed Control(Up/Down Speed)

Total Current Control (Over Current Protection)

DC Peak Current Control

4 way Valve Control

Outdoor Fan Motor Control

Discharge Pipe Temp. Control

Low Ambient

Comp. Torque Control

Over Heating Protection (Comp.)


Operation

Function of Controls

Operation

• DISPLAY1) C/O Model

Operation Indicator• ON while in appliance operation, OFF while in appliance pause.• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)

Timer Indicator• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.

Comp. Running Incidator• While in appliance operation, ON while in outdoor unit compressor running, OFF while in compressor off.

2) H/P Model

Operation Indicator• ON while in appliance operation, OFF while in appliance pause.• Flashing while in disconnection or short in Thermistor. (3 sec off / 0.5 sec on)

Timer Indicator• ON while in timer mode (on/off), OFF when timer mode is completed or canceled.

Defrost Indicator• OFF except when hot start during heating mode operation or while in defrost control.

• If the indoor pipe temperaure is below 0°C in 7 min. after the compressor operates without pause while incooling cycle operation mode, compressor, outdoor fan are turned off.

• When indoor pipe temp. is 7°C or higher after 2 min pause of compressor compressor, outdoor fan is turned on according to the condition of the room temperature.

Comp. free

Comp. Step 4Comp. Step 2

Comp. off0˚C3˚C6˚C 7˚C

Indoor pipetemp.

Protection of the evaporator pipe from frosting

Service Manual 31

Operation

Cooling mode operation

• Operating frequency of compressor depend on the difference of the temperature.(= intake air Temp.- Compressor off Temp.

• Compressor off temp.= setting temp. -0.5°Con temp. = setting temp. +0.5°C

• If compressor operates at some operating frequency, the operating frequency of compressor cannot bechanged within 30 seconds.

• Condition of compressor turned off- When intake air temperature stay at the temperature between setting temp. -0.5°C and setting temp.-1.0°C for 3 minutes continuously.

- When intake air temperature reaches below the temperature of setting temp. -1.0°C.

• Compressor 2 minutes delay- The compressor can restart minimum 2 minutes later after compressor off.

Temp. differences Comp. Operating frequencyover 2.5°C Step 72.0~2.49°C Step 61.5~1.99°C Step 51.0~1.49°C Step 40.5~0.99°C Step 30.0~0.49°C Step 2

0.5~0°C Step 1

[The operating freq. step of comp.]

[The targeting operating freq. of comp. each model]

Model

AS-W0964DH0/GH0 35 39 43 47 52 57 62AS-W1264DH0/GH0 20 35 47 56 63 70 78AS-W1865DH0/GH0 16 32 58 64 70 75 85

AS-W1224DH0 20 35 47 54 65 70 74AS-W1424DH0 20 35 47 54 72 74 78AS-W1825DH0 16 32 53 62 72 75 85

Comp. Operating frequencyStep 1 Step 2 Step 3 Step 4 Step 5(Fc) Step 6 Step 7

Healthy Dehumidification mode operation• When the dehumidification operation is set by the remote controller the intake air temperature is detected and

the setting temp. is automatically set according to the intake air temperature.

• When intake air temp reaches above the temp of setting +1.0°C, condition of compressor same as coolingmode operation.

• When intake air temperature reaches bolow the temp of setting –1.0°C, compressor operate step1~step3 andindoor fan speed repeatly operate low or stop.

Intake air Temp.

26°C ≤ intake air temp.

24°C ≤ intake air temp.< 26°C

18°C < intake air temp. < 24°C

intake air temp. ≤ 18°C

Setting Temp.

25°C

intake air temp. -1°C

intake air temp. -0.5°C

18°C


Operation

• Operating frequency of compressor depend on the difference of the temperature(= compressor off temp. - intake air temp.)

• Compressor off temp. = setting temp.+3.0°Con temp. = setting temp.

• If compressor operates at some operation frequency, the operating frequency of compressor cannot bechanged within 30 seconds.

• Condition of compressor turned off- When intake air temperature reaches +3°C above the setting temperature.

• Condition of indoor fan turned off- While in compressor on:indoor pipe temp. < 30°C

• While in defrost control, between the indoor and outdoor fans are turned off.• Compressor 2minutes delay

- After compressor off, the compressor can restart minimum 2 minutes later.

Temp. differences

2.5~3.0°C

2.0~2.49°C

1.5~1.99°C

1.0~1.49°C

0.5~0.99°C

0.0~0.49°C

~0.0°C

Comp. Operating frequency

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

[ The operating freq. step of comp]

[The targeting operating freq. of comp. each model]

Heating mode operation

Model

AS-W0964DH0/GH0 35 44 53 62 69 74 80

AS-W1264DH0/GH0 20 38 53 63 72 79 86

AS-W1865DH0/GH0 16 38 47 65 79 87 96

AS-W1224DH0 20 35 53 63 70 79 86

AS-W1424DH0 20 35 53 63 77 79 86

AS-W1825DH0 16 38 47 62 79 87 90

Comp. Operating frequencyStep 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7

• While in heating mode or Fuzzy operation, the Jet Cool key cannot be input. When it is input while in theother mode operation(cooling, dehumidification, ventilation), the Jet Cool mode is operated.

• In the Jet Cool mode, the indoor fan is operated super-high speed for 30 min. at cooling mode operation.• In the Jet Cool mode, the room temperature is controlled to the setting temperature, 18°C.• When the sleep timer mode input while the Jet Cool mode operation, the Jet Cool mode has the priority.• When the Jet Cool key is input, the upper/lower vane is reset to those of the initial cooling mode and then

operated in order that the air outflow could reach further.

Jet cool mode operation

Service Manual 33

Operation

• While in cooling mode or Fuzzy operation, the Jet Heat key cannot be input. When it is input while in theHeating mode operation (dehumidification), the Jet Heat mode is operated.

• In the Jet Heat mode, the indoor fan is operated super-high speed for 60 min. at Heating mode operation.• In the Jet Heat mode, the room temperature is controlled to the setting temperature, 30°C.• When the sleep timer mode input while the Jet Heat mode operation, the Jet Heat mode has the priority.• When the Jet Heat key is input, the upper/lower vane is reset to those of the initial Jet heating mode and

then operated in order that the air outflow could reach under flow.

1. New Chaos swing mode• By the Chaos swing key input, the upper/lower vane automatically operates with the Chaos swing or it is

fixed to the desired direction.

Mode2

Mode3

Mode4

Mode5

Mode6

Mode7

Mode8

Mode9

OPEN

CLOSED

8°

Cooling Operation

120°

Mode2

Mode3

Mode4

Mode5

Mode6

Mode7

Mode8

Mode9

OPEN

CLOSED

8°

Heating Operation

120°

Mode1

Mode1

Mode2

Mode3

Mode4

Mode5

Mode6

Mode7

Mode8

OPEN

CLOSED

8°

Cooling Operation

Mode1

Mode2

Mode3

Mode4

Mode5

Mode6

Mode7

Mode8

OPEN

CLOSED

8°

Heating Operation

110°110°

Start

(S4) 7, 9, 12, 14k Model

(S5) 18, 24k Model

Start

Start

Start

Jet heat mode operation

Swing mode


Operation

1. Sleep timer operation for cooling cycle• While in cooling mode operation, 30 min. later since the start of the sleep timer, the setting temperature

increase by 1°C. After another 30min. elapse, it increases by 1°C again.

2. Sleep timer operation for heating cycle• While in heating mode operation, 60 min. later since the start of the sleep timer, the setting temperature

decrease by 1°C. After another 60min. elapse, it decreases by 1°C again.

Setting temp. (˚C)

1.0˚C up

1.0˚C up

Cooling ON temp.(Setting temp. +0.5˚C)

Cooling OFF temp.(Setting temp. -0.5˚C)

0.5 1 Sleep time (hr)

Setting temp. (°C)

Heating ON temp.(Setting temp)

Heating OFF temp.(Setting temp. +3.0°C)

1 2 Sleep time (hr)

1.0°C down

1.0°C down

• When the sleep time is reached after [1,2,3,4,5,6,7hr] is input by the remote control during the operation, theoperation of the appliance stops.

• When the appliance is on pause, the sleep timer mode cannot be input.

Sleep timer operation

Service Manual 35

Operation

Auto restarting operation

Forced operation

Test Operation

• When the power is restarted after a sudden power failure while in appliance operation, the mode before thepower failure is kept on the memory and the appliance automatically operates in the mode on the memory.

• Operation mode that is kept on the memory- State of operation ON/OFF- Operation mode/setting temp./selected airflow speed- Sleep timer mode/remaining time of sleep timer- Chaos Swing

• To operate the appliance by force in case that the remote control is lost, the forced operation selection switchis on the main unit of the appliance to operate the appliance in the standard conditions.

• The operation condition is set according to the outdoor temp. and intake air temperature as follows.

The unit select before operating mode in 3 hours.

• Press the Tact Switch for compulsory operation of the main body for 3 seconds in order to operate in the trialoperation mode.- Operation mode: Cold- Indoor pan: Strong wind- COMP frequency: Step 5- COMP compulsorily operates for about 18 minutes irrespective of indoor temperature.

Indoor temp.

over 24°C

21~24°C

below 21°C

Setting temp.

22°C

23°C

24°C

Setting speed ofindoor fan

High speed

Operating Mode

Cooling

Healthy Dehumidification

Heating


Operation

• Power relay turns on 1 second later after the power is input to the outdoor unit.• Control sequence : power on PTC operating power relay on

CT1 control• If the operating current reaches I1, the operating frequency of the compressor decrease.• After decreasing the operating frequency by 1step, if operating current is below I1 for 60 seconds continuous-

ly, the operating frequency of compressor increase by 1step.

CT2 control• If the operating current of the appliance reaches I2, the compressor stop instantly and 2 minutes later the

compressor restart again.• If CT2 occurs 5 times within 1hour, the appliance turn off and display ERROR CODE 7.

I1:Current of operating frequency downI2: Current of compressor cut off

cf. I1 is set the lowest level between intial value and in case dectection of dc paeak current.

Control table

DC Peak Current Error by a fault signal of IPM• If the operating current of IPM reaches 35A ±3A, the compressor stop instantly.• If DC PEAK occurs 5 times within 1 hour, the appliance turns off and display ERROR CODE 6.

DC Peak Current Error by the compressor lock• If the DC LINK voltage below DC 140V occurs 5 times within 1 hour while the compressor is operating, the

appliance turns off and display ERROR CODE 6.

DC Peak Current Error by the Outdoor Fan Lock• If it’s 5 times within 1 hour in case of the temperature of outdoor pipe TH is over 65°C while the compressor is

operating, the appliance turns off and display ERROR CODE 6.

Power relay control

Protection from total current control

Protection from DC Peak Current

1 AS-0964DH0 5.5 6.5 6 7 9

2 AS-1264DH0 6.5 7.5 7 8 10

3 AS-1865DH0 9.0 10.5 9.5 11.0 13

I1

Cooling Heating Cooling HeatingOutdoor temp ≥ 38°C Outdoor temp < 38°C I2Model

Service Manual 37

Operation

• If the temperature of the heat sink TH. reaches over Toff, the Compressor stop instantly.• It will be limited the compressor operating frequency according to the heat sink TH.(refer to below FIG.)• It will be blink 4 times, when the thermistor is open or short, also the temperature is over Toff.

• If the temperature of the discharge pipe of compressor reaches over 130°C or below -30°C the compressorstop instantly.

• It will be limited the compressor operating frequency according to the compressor dome TH.(Refer to belowFig.)

• Temperature range by COMP SPEC varies by 10°C.

Portection from overheating of power module

Portection from overheating of compressor

T off °C

T2 °C

Heat Sink Temp.

T1 °C

T on °C

COMPFreq. Free OFF FreeFc-1 Fc-1Fc-2 Fc-2

∆T = (T off - T on)T1 = T on + ∆TT2 = T on + 2 * ∆T

D-Pipe Temp.

COMP Freq. Free FreeFh min OFFFc-1 Fc-1Fc-2 Fc-2

∆T = (T off - T2)/2T1 = T2 - 2 * ∆TT3 = T2 + ∆T

T off °C

T2 °C

T3 °C

T1 °C

-13 °C

1 AS-W0964DH0 95 105

2 AS-W1264DH0 95 105

3 AS-W1865DH0 85 95

No. MODEL T on T off

1 AS-W0964DH0 95 105

2 AS-W1264DH0 95 105

3 AS-W1865DH0 98 108

No. MODEL T on T off


Operation

• While in heating mode operation in order to protect the evaporator pipe of the outdoor unit from freezing,reversed to cooling cycle to defrost the evaporator pipe of the outdoor unit.

• Defrosting control is available 50 minutes later since heating cycle started and the pipe temperature of out-door unit reaches below -6°C.

Setting Freq.OperatingFreq. of Comp.

4-Way

EEVOpen step

OutdoorFAN

Indoor FAN

Pre-Heat LED

Deice STEP

Fhmin

Minimum Timeof Heating

Main Deice time

Fhmin

Fhmin

ON

OFF Setting Speed

ON

HotStartOFF

HotStarting

ONOFF OFF

0 1 2 3 4 5 6

SettingStarting step

Setting Freq.

Setting Speed

Setting Speed

Hi Speed

Defrosting control

Service Manual 39

Operation

• Function used to perform the Self Cleaning to prevent the Unit from Fungus and Bad Odors.• Used after the Shut Down of Cooling Operation to Clean the Evaporator and keep it as fresh for the Next operation.• During Self Cleaning the Outdoor Unit is Switched off.• The function is easy to be operated as It is accessed through the Remote Controller.

Auto Cleaning

Auto Changeover

Low Ambient

Comp. ONOFF

Setting Step LowIndoor Fan

ON

2) Cooling/only Model

Cooling CYCLE

OFF

30 Min

Fan

ON

1) Heat/pump Model

Cooling CYCLE

OFF

Comp. ONONOFF OFF

Indoor Fan Setting Step Low Low Low

13 Min

HeatingFan

60 Sec 120 Sec

Fan

• The air conditioner changes the operationmode automatically to keep indoor tempera-ture.

• When room temperature vary over ±2°C withrespect to setting temperature, air condition-er keeps the room temperature in ±2°C withrespect to setting temperature by autochange mode.

• If outdoor temperature drops below certain temperature,liquid back is prevented by reducing fan speed.It can prevent frosting of evaporator and keep cooling operation

• No matter even if the outdoor temperature reaches -10°C.• You can Cool your room at your desired temperature all your around.

Freq.

- 0°C °… Outdoor temp.

Outdoor pipe temp.0°C outdoor fan On/Offcontrol

°

Comp Freq.

Outdoor fan

On On

OffOff

Outdoor temp.:-10°C

-5

0

5

10

15

20

25

0 50 100 150 200

Time(Min.)

Tem

p.(°

C)

Outdoor fan On/Off control

Cond . temp.

COOLINGAutoChangeMode.

Outdoor temp.Indoor temp.

Outdoortemp.

30°C

20°C

10°C

+2°C+1°C

+0.5°CSet Temp.-0.5°C-1°C-2°C

HEATING


Remote Control Operations

Operation

The controls will look like the following.

1. START/STOP BUTTONOperation starts when this button is pressed andstops when the button is pressed again.

2. OPERATION MODE SELECTION BUTTONUsed to select the operation mode.

3. ROOM TEMPERATURE SETTING BUTTONSUsed to select the room temperature.

4. INDOOR FAN SPEED SELECTORUsed to select fan speed in four stepslow, medium, high and CHAOS.

5. JET COOL/JET HEATUsed to start or stop the speed cooling/heating.(speed cooling/heating operates super high fan speed incooling/heating mode.)

6. CHAOS SWING BUTTONUsed to stop or start louver movement and setthe desired up/down airflow direction.

7. ON/OFF TIMER BUTTONSUsed to set the time of starting and stopping operation.

8. TIME SETTING BUTTONSUsed to adjust the time.

9. TIMER SET/CANCEL BUTTONUsed to set the timer when the desired time is obtainedand to cancel the Timer operation.

10. SLEEP MODE AUTO BUTTONUsed to set Sleep Mode Auto operation.

11. AIR CIRCULATION BUTTONUsed to circulate the room air without cooling or heating.

12. ROOM TEMPERATURE CHECKING BUTTONUsed to check the room temperature.

13. PLASMA(OPTIONAL)Used to start or stop the plasma function.

14. HORIZONTAL AIRFLOW DIRECTION CONTROLBUTTON (OPTIONAL)Used to set the desired horizontal airflow direction.

15. RESET BUTTONUsed prior to resetting time.

16. 2ND F BUTTONUsed prior to using modes printed in blue at the bottom ofbuttons.

17. AUTO CLEAN (OPTIONAL)Used to set Auto Clean mode.

ON OFF

CANCEL

AUTO CLEANSET

1

3

5

4

9

10

12

1416

72

813

15

11

6

Cooling Operation

Auto Operation or Auto Changeover

Healthy Dehumidification Operation

Flip-up door(opened)

Heating Operation

Signal transmitter

• Cooling Model( ), Heat Pump Model( )

17

Operation Mode

Service Manual 41

Disassembly

DisassemblyIndoor Unit

Disconnect the unit from power supply before mak-ing any checks.Be sure the power switch is set to “OFF”.

To remove the Grille from the Chassis.• Set the up-and-down air discharge louver to open

position (horizontally) by finger pressure.• Remove the securing screws.• To remove the Grille, pull the lower left and right

side of the grille toward you (slightly tilted) and lift itstraight upward.

1. Before removing the control box, be sure totake out the wire screwed at the other end.

EarthConductor


Disassembly

2. To remove the Control Box.• Remove securing screws.• Pull the control box out from the chassis

carefully.

3. To remove the Discharge Grille.• Unhook the discharge grille and pull the

discharge grille out from the chassis carefully.

4. To remove the Evaporator.• Remove 3 screws securing the evaporator(at the

left 2EA in the Eva Holder, at the right 1EA).

Screw

• When repair, do not damage the Caution label.

Service Manual 43

Disassembly

• Unhook the tab on the right inside of the chassisat the same time, slightly pull the evaporatortoward you until the tab is clear of the slot.

5. To remove the Motor Cover• Remove 2 securing screw.• Pull the motor cover out from the chassis

carefully.

6. To remove the Cross-Flow Fan• Loosen the screw securing the cross-flow fan to

the fan motor (do not remove).• Lift up the right side of the cross-flow fan and the

fan motor, separate the fan motor from thecross-flow fan.

• Remove the left end of the cross-flow fan fromthe self-aligning bearing.

Motor cover

Bearing

Cross-flow fan


Troubleshooting Guide


INDOOR UNIT OUTDOOR UNIT

HEATEXCHANGE(EVAPORATOR)

HEATEXCHANGE(CONDENSER)

EER

COMPRESSOR

ACCUMULATOR

GAS SIDE

3-WAY VALVE

LIQUID SIDE

3-WAY VALVE

COOLING

HEATING

REVERSINGVALVE

INDOOR UNIT OUTDOOR UNIT

HEATEXCHANGE(EVAPORATOR)

HEATEXCHANGE(CONDENSER)

COMPRESSOR

ACCUMULATOR

GAS SIDE

3-WAY VALVE

LIQUID SIDE

3-WAY VALVE

CHECK VALVE

COOLING

HEATING

REVERSINGVALVE

(1) Cooling Only Models

Refrigeration Cycle Diagram

(2) Cooling & Heating Models

Service Manual 45


CAUTION:* Capicity is based on standard length and maximum allowance lengthis the basis of reliability.* Oil trap should be installed per 5~7 meters.

Outdoor unit

Indoor unit

A

B

AOil trap

Outdoor unit

Indoor unitB

In case more than 5m

7k~14k3/8"(Ø9.52) 1/4"(Ø6.35) 4 or 7.5 7 15 20

1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 7 15 20

1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 15 30 20

18k~28k 5/8"(Ø15.88) 1/4"(Ø6.35) 4 or 7.5 15 30 20

5/8"(Ø15.88) 3/8"(Ø9.52) 4 or 7.5 15 30 30

30k~38k5/8"(Ø15.88) 3/8"(Ø9.52) 7.5 15 30 30

3/4"(Ø19.05) 3/8"(Ø9.52) 7.5 15 30 50

Pipe SizeCapacity(Btu/h)

GAS LIQUID

AdditionalRefrigerant

(g/m)

Max.LengthA (m)

Max.Elevation

B (m)

StandardLength

(m)

Pipe Length and the Elevation



2-way, 3-way Valve

2-way Valve (Liquid Side) 3-way Valve (Gas Side)

Shaft position Shaft position Service port

Closed Closed Closed(with valve cap) (with valve cap) (with cap)

Open Closed Open(counter-clockwise) (clockwise) (push-pin or with

vacumm pump)

Open Open Closed(with valve cap) (with valve cap) (with cap)

Closed Open Open(clockwise) (counter-clockwise) (connected manifold

gauge)

Open Open Open(with charging

cylinder)

Open Open Open(with charging

cylinder)

Open Open

Open Open

Works

Shipping

Air purging(Installation)

Operation

Pumping down(Transfering)

Evacuation(Servicing)

Gas charging(Servicing)

Pressure check(Servicing)

Gas releasing(Servicing)

1.

2.

3.

4.

5.

6.

Valve cap

Open positionClosed position

Pin

Serviceport

Serviceport cap

To outdoor unit

Flare nut

To piping connection

To outdoor unit

Hexagonal wrench (4mm)

Open positionClosed position

To piping connection

Flare nut

Open(with charging cylinder)

Open(with charging cylinder)

Service Manual 47


Required tools : hexagonal wrench, adjustable wrench,torque wrenches, wrench to hold thejoints, and gas leak detector.

The additional gas for air purging has been chargedin the outdoor unit.However, if the flare connections have not be donecorrectly and there gas leaks, a gas cylinder and thecharge set will be needed.

The air in the indoor unit and in the piping must bepurged. If air remains in the refrigeration pipes, it willaffect the compressor, reduce to cooling capacity,and could lead to a malfunction.

• Procedure

(1) Recheck the piping connections.

(2) Open the valve stem of the 2-way valve coun-terclockwise approximately 90°, wait 10 sec-onds, and then set it to closed position.– Be sure to use a hexagonal wrench to operate

the valve stem.

(3) Check for gas leakage.– Check the flare connections for gas leakage.

(4) Purge the air from the system.– Set the 2-way valve to the open position and

remove the cap from the 3-way valve’s serviceport.

– Using the hexagonal wrench to press the valvecore pin, discharge for three seconds and thenwait for one minute. Repeat this three times.

(5) Use torque wrench to tighten the service portnut to a torque of 1.8kg.cm.

(6) Set the 3-way valve to the back seat.

(7) Mount the valve stem nuts to the 2-way and 3-way valves.

(8) Check for gas leakage.– At this time, especially check for gas leakage

from the 2-way and 3-way valve’s stem nuts,and from the service port nut.

Service port nut:Be sure, using a torque wrench to tighten the service port nut (after using the service port), so that it prevents thegas leakage from the refrigeration cycle.

CAUTION: Do not leak the gas in the air during Air purging.

CAUTION: If gas leakage are discoveredin step (3) above, take the followingmesures :

If the gas leaks stop when the piping connectionsare tightened further, continue working from step (4).If the gas leaks do not stop when the connectionsare retightened, repair the location of the leak, dis-charge all of the gas through the service port, andthen recharge with the specified amount of gas froma gas cylinder.

Liquid side

Outdoor unit

3-wayvalve

Gas side

Indoor unit

2-wayvalve

Open

Clsed

Air purging



• Procedure

(1) Confirm that both the 2-way and 3-way valvesare set to the open position.– Remove the valve stem caps and confirm that

the valve stems are in the raised position.– Be sure to use a hexagonal wrench to operate

the valve stems.

(2) Operate the unit for 10 to 15 minutes.

(3) Stop operation and wait for 3 minutes, thenconnect the charge set to the service port ofthe 3-way valve.– Connect the charge hose with the push pin to

the service port.

(4) Air purging of the charge hose.– Open the low-pressure valve on the charge set

slightly to air purge from the charge hose.

(5) Set the 2-way valve to the closed position.

(6) Operate the air conditioner at the coolingcycle and stop it when the gauge indicates1kg/cm2g.

(7) Immediately set the 3-way valve to the closedposition.– Do this quickly so that the gauge ends up indi-

cating 3 to 5kg/cm2g.

(8) Disconnect the charge set, and mount the 2-way and 3-way valve’s stem nuts and the ser-vice port nut.– Use torque wrench to tighten the service port

nut to a torque of 1.8 kg.m.– Be sure to check for gas leakage.

Lo

Closed

Purge the air

Outdoor unit

Indoor unit Liquid side

Gas side

CLOSE

Open2-Wayvalve

3-Wayvalve

CLOSE

Pumping Down

Service Manual 49


Re-air Purging

(Re-installation)

• Procedure

(1) Confirm that both the liquid side valve and thegas side valve are set to the closed position.

(2) Connect the charge set and a gas cylinder tothe service port of the Gas side valve.– Leave the valve on the gas cylinder closed.

(3) Air purging.– Open the valves on the gas cylinder and the

charge set. Purge the air by loosening the flarenut on the liquid side valve approximately 45°for 3 seconds then closing it for 1 minute;repeat 3 times.

– After purging the air, use a torque wrench totighten the flare nut on liquid side valve.

(4) Check for gas leakage.– Check the flare connections for gas leakage.

(5) Discharge the refrigerant.– Close the valve on the gas cylinder and dis-

charge the refrigerant until the gauge indicates3 to 5 kg/cm2g.

(6) Disconnect the charge set and the gas cylin-der, and set the Liquid side and Gas sidevalves to the open position.– Be sure to use a hexagonal wrench to operate

the valve stems.

(7) Mount the valve stem nuts and the serviceport nut.– Use torque wrench to tighten the service port


CAUTION: Do not leak the gas in the airduring Air Purging.

Lo

Closed

OPEN

Closed

Gas cylinder

R22

Outdoor unit


Gas side

CLOSE

3-Wayvalve

3-Wayvalve



Balance Refrigerant of the 3-way Valve(Gas leakage)

• Procedure

(1) Confirm that both the 2-way and 3-way valvesare set to the back seat.

(2) Connect the charge set to the 3-way valve’sport.– Leave the valve on the charge set closed.– Connect the charge hose to the service port.

(3) Open the valve (Lo side) on the charge set anddischarge the refrigerant until the gauge indi-cates 0 kg/cm2G.– If there is no air in the refrigerant cycle (the

pressure when the air conditioner is not runningis higher than 1 kg/cm2G), discharge the refrig-erant until the gauge indicates 0.5 to 1kg/cm2G. if this is the case, it will not be neces-sary to apply a evacuatin.

– Discharge the refrigerant gradually; if it is dis-charged too suddenly, the refrigeration oil willalso be discharged.

Lo

Open

Open3-Wayvalve

3-Wayvalve

Gas side

CLOSEOPEN

Outdoor unit

Liquid sideIndoor unit

Service Manual 51


Evacuation

(All amount of refrigerant leaked)

• Procedure

(1) Connect the vacuum pump to the center hoseof charge set center hose

(2) Evacuation for approximately one hour.– Confirm that the gauge needle has moved

toward -76 cmHg (vacuum of 4 mmHg or less).

(3) Close the valve (Lo side) on the charge set,turn off the vacuum pump, and confirm thatthe gauge needle does not move (approxima-tely 5 minutes after turning off the vacuumpump).

(4) Disconnect the charge hose from the vacuumpump.– Vacuum pump oil.

If the vacuum pump oil becomes dirty ordepleted, replenish as needed.

Lo

Open

Open

Vacuum pump

3-Wayvalve

Outdoor unit

Liquid sideIndoor unit

Gas side

3-Wayvalve

CLOSEOPEN



Gas Charging

(After Evacuation)

• Procedure

(1) Connect the charge hose to the chargingcylinder.– Connect the charge hose which you dis-con-

nected from the vacuum pump to the valve atthe bottom of the cylinder.

– If you are using a gas cylinder, also use ascale and reverse the cylinder so that the sys-tem can be charged with liquid.

(2) Purge the air from the charge hose.– Open the valve at the bottom of the cylinder

and press the check valve on the charge set topurge the air. (Be careful of the liquid refriger-ant). The procedure is the same if using a gascylinder.

(3) Open the valve (Lo side on the charge set andcharge the system with liquid refrigerant.– If the system can not be charged with the spec-

ified amount of refrigerant, it can be chargedwith a little at a time (approximately 150g eachtime) while operating the air conditioner in thecooling cycle; however, one time is not suffi-cient, wait approximately 1 minute and thenrepeat the procedure (pumping down-pin).

(4) Immediately disconnect the charge hose fromthe 3-way valve’s service port.– Stopping partway will allow the gas to be dis-

charged.– If the system has been charged with liquid

refrigerant while operating the air conditionerturn off the air conditioner before disconnectingthe hose.

(5) Mount the valve stem nuts and the serviceport nut.– Use torque wrench to tighten the service port


\

This is different from previous procedures.Because you are charging with liquid refrigerantfrom the gas side, absolutely do not attempt tocharge with larger amounts of liquid refrigerantwhile operating the air conditioner.

Lo

Chargingcylinder

Outdoor unit


Gas side

CLOSE

Open3-Wayvalve

3-Wayvalve

OPEN

Open

Check valve

(1)

Service Manual 53


Trouble analysis

1. Check temperature difference between intake and discharge air and operating current.

Temp. Difference

Temp. difference : approx. 0°CCurrent : less than 80% of

rated current

Temp. difference : approx. 8°CCurrent : less than 80% of

rated current

Temp. difference : less than 8°CCurrent : over the reated

current

Temp. difference : over 8°C

Operating Current

• All amount of refrigerant leakedout. Check refrigeration cycle.

• Refrigerant leakegeClog of refrigeration cycleDefective compressor

• Excessive amount of refrigerant

• Normal

Temperature difference between intake and discharge air depends on room air humidity. When the room airhumidity is relativery higher, temperature difference is smaller. When the room air humidity is relatively lower tem-perature difference is larger.

2. Check temperature and pressure of refrigeration cycle.

1. The suction pressure is usually 8.5~9.5kg/cm2G(Cooling) at normal condition.2. The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with

putty.

NOTICE

NOTICE

Suction pressure Temperature(Compared with (Compared with Cause of Trouble Description

the normal value) the normal valve)

Defective compressor Current is low.Defective 4-way reverse valve

Excessive amount of High pressure does not quicklyNormal refrigerant rise at the beginning of

operation.

Insufficient amount of Current is low.Lower Higher refrigerant (Leakage)

Clogging Current is low.

High

Higher

Cycle Parts



Self diagnosis Function

1 time 1time

3 sec

2times 2times

3 sec

4times 4times

3 sec

5times 5times

3 sec

6times 6times

3 sec

7times 7times

3 sec

3 sec

3 sec

2times

3 sec

2times

3 sec

1time

3 sec

1time

3 sec

1time

3 sec1

2

4

5

6

7

Error IndicatorErrorCode

Cause of Error DisplayIndoor Outdoor

IndoorOperation

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

• Indoor Temp. sensor error - Sensor open or short

• Heat Sink sensor error - Sensor open or short - Heat Sink temp is over 95°…

• Communication error

• Outdoor Temp. sensor error - Sensor open or short

• DC Peak error

• Over current error (CT2)

ON

ON

ON

OFF

SHUTDOWN

SHUTDOWN

9times 9times

3 sec

10times 10times

3 sec10 ON

• Outdoor fan lock error (BLDC fan model only) OFF

8times 8times

3 sec8

• Indoor fan lock error (BLDC fan model only) OFF

9

1. Error indicator of air conditioner1) Indoor : Operating LED / Outdoor : LED01M(Red) on the outdoor PCB2) 2 more errors occur at same time

- Air conditioner Off condition : Display the error code of product off cause- Air conditioner On condition : Display the prior Error Code

2. Cancellation of Error indicator1) Error Code 1, 2, 3, 4, 10 : Error indicator canceled when cause of error recovered2) Error Code 5, 8, 9 : Keep displaying Error indicator by restarting air conditioner,

although cause of error recovered3) Error Code 6, 7 : Error indicator canceled when power reset (Power Cord Off & On)

Service Manual 55


Precaution in Service or CheckEven after stopping the operation of product, it takes some time to discharge the remaining electricity of theelectrolytic capacitor that was charged. Before starting a checking or repairing job, pull out the plug out of theoutlet and make sure that the lamp on the control board outdoor unit is off.

The Diagnosis Procedure

Check the supplied voltage to product (AC 220V/230V ± 30V).

Check the connecting cable between Indoor and Outdoor.

Check the blinking number of operation indicator(refer to the self-diagnosis function).

Check the self-diagnosis table

• Check the condition of connectors• The condition of P.C.B pattern.

• Check the condition of connectors.• The condition of P.C.B pattern.• The electronic components.

Indoor Outdoor



Electronic Parts

Refer to electronic contorol device drawing & schematic diagram.

The Product doesn’t operate at all.

Turn off the main power and wait to 10 seconds

Turn on the main power again.

Does "Beeping" sound is made from the indoor unit?

• Primarily, the operating condi-tion of Micom is O.K.

• Check CN-DISP1CN-DISP2 of indoor PCB

Check the voltage of power(AC220V/AC240V, 50Hz).

• The voltage of main power.• The voltage applied to the unit.• The connecting method of Indoor/Outdoor connecting cable (each color)• The P.C.B. Ass'y(Fuse, Noise Filter, Power Module, Bridge Diode, etc.)

Trouble 1

NO YES

The operation check of the Indoor P.C.B. Ass'y

Procedure

1) The input voltage of power mod-ule.

2) The output voltage of power mod-ule.

4) IC04D(7805)

5) IC01A(KIA7036)

Specification

1) AC230V ± 30V: Check the rated voltage

2) 12V ± 3V

4) DC5V

5) The voltage of micom pin 19: DC4.5V↑

Remedy

1) Check the power outlet.

2) ReplaceP.C.B Ass'y

4) Replace P.C.B Ass'y

5) Replace P.C.B Ass'y

Service Manual 57


Turn on main power.

While the compressor has been stopped, the compressor does not operateowing to the delaying function for 2 minutes after stopped.

When the compressor stopped Indoor Fan is driven by a low speed.At this point the wind speed is not controlled by the remote controller.

(When operated in the Sleeping Mode, the wind speed is set to the low speed as force).)

Caused by the remote controller. Caused by other parts exceptthe remote controller

When the mark ( ) is displayed in LCDscreen, replace battery.

Check the contact of CN-DISP 1, 2 connector

Check DISP P.C.B Ass'y-Voltage between CN-DISP1 - : DC +5V

Check point• Check the connecting circuit between

MICOM PIN and CN-DISP1 PIN• Check receiver ass'y

Product doesn't operate with the remote controller.Trouble 2



Troubleshooting for error code

Description Cause of error

1• Indoor TH. (sensor) is short or open• Indoor TH. (sensor) is not connected to the indoor pcb assembly• Damage or defect on the sensing circuit of indoor pcb assembly. (R01H, R02H, R03H, R04H, C01H, C02H)

Indoor TH. is short oropen

Indoor TH. is connected to Indoor pcb assembly ?

Indoor TH. is right ?

YES

No

- Connect to CN-TH1 in indoor pcb assembly

Sensing circuit of indoorpcb is right ?

No

Check Indoor TH.- Measure resistance of TH. (air : about 10k Ω at 25 °C, pipe : about 5k Ω at 25 °C)

YES

No

- Check soldering state of R01H ~ R04H, C01H, C02H

Check flow

2• Outdoor TH. (sensor) is short or open• Outdoor TH. (sensor) is not connected to the outdoor pcb assembly• Damage or defect on the sensing circuit of outdoor pcb assembly. (R03H~R06H, C02H, C03H)

Outdoor TH. is short oropen

DescriptionError code

Error code

Cause of error

Outdoor TH. is connected to outdoor pcb assembly ?

Outdoor TH. is right ?

YES

No

- Connect to CN-TH1 in outdoor pcb assembly

Sensing circuit of outdoorpcb is right ?

No

Check outdoor TH.- Measure resistance of TH. (air : about 10k Ω at 25 °C, pipe : about 5k Ω at 25 °C)

YES

No

- Check soldering state of R03H ~ R06H, C02H, C03H

Check flow

Service Manual 59


• 9K / 12K

4

• Heat-sink TH. is damaged(short or open).

• Heat-sink Temp. is over 95°C

• Damage or defect on the sensing circuit of outdoor pcb assembly. (R01H, R02H, C01H)

Heat-sink Temp. is over95°CHeat-sink TH.is open or short

Heat-sink TH. in INV-IC isRight ?


YES

No

Check heat-sink TH. - Measure resistance of TH. (about 10k Ω at 25 °C)

Heat-sink TH is connected to outdoor PCB assembly?

YES

No

- Connect to CN-TH2 in outdoor PCB assembly

No

- Check soldering state of R01H, R02H, C01H

Check flow

Cause of error

4

• Heat-sink TH. in outdoor pcb is open or short

• Heat-sink Temp. is over 95°C

• Damage or defect on the sensing circuit of outdoor pcb assembly. (R01H, R02H, C01H)

Heat-sink Temp. is over95°CHeat-sink TH. in outdoorpcb is open or short

Heat-sink TH. in outdoorpcb is Right ?


YES

No

Check heat-sink TH. - Measure resistance of TH. (about 10k Ω at 25 °C)

No


Check flowYES

Heat-sink TH. Is connectedto CN-TH2 in outdoor pcb ?

No

Connect to CN-TH2 inOutdoor pcb assembly

Description Cause of errorError code

DescriptionError code

• 18K



5

• Wrong or missing wiring between indoor and outdoor unit cable• Defect of communication components in indoor pcb assembly• Defect of communication components in outdoor pcb assembly• Defect of power supply components in outdoor pcb assembly• No ground connection in air conditioner unit (affected by noise in power source)

Communication Error

Wiring connectionIs right ?

Is the voltage of T/Block, in outdoor about

AC 220/240V ?

YES

No

Indoor Outdoor 1(BR) 1(BR) 2(BL) 2(BL)3(GN/YL) 3(GN/YL) 4(RD) 4(RD)

No

Check power connectorIs not connected to theT/Block in indoor unit.

Check flow

Is the voltage of GND & DC5V in Outdoor pcb about DC 5V ?

YES

No

Check FUSE, NF01/02J, PTC,Power Module, BD-01S in Outdoor pcb assembly

Communication circuit of indoor& outdoor pcb Is right ?

YES

No

Check IC01K, IC02K,D01K~D03K,ZD01K~ZD03K, R01K~R10K,C01K~C04K

Ground connection is installed ?(power outlet or outdoor chassis)

YES

No

Install ground connection from outdoorunit. (In case power outlet has no earthport)

Earth port


Service Manual 61


Cause of error

6

• Supplied power is not normal• Comp Connector (CN-U,V,W) is disconnected or inserted to wrong position• Compressor is damaged (coil short) replace compressor• Too much Refrigerant• Defect in outdoor pcb assembly replace pcb assembly

DC Peak Error

Supplied voltage toOutdoor pcb is aboutAC 220/240V ?

Is connector (CN-U,V,W)connected to compressor and inserted to pcb in right position ?

YES

No

Check power source

No

Check CN-U,V,W connector(U : RD, V : BL, W : YL)

Check flow

Refrigerant pressure is right ?

YES

No

Check refrigerant pressureand adjust.

Is the compressor right ?

YES

No

Check resistance Between U-V, V-W, U-W port.

→ Short / Open circuit (Comp.motor coil error) → normal : 1 ~2 Ω

Between U,V,W and Body °Ê normal : over10M Ω

Inverter components in outdoor pcb assembly areright ?

YES

No

* 9 K/12K ModelCheck

Short of SPM3 pins (GND - P, U, V, W pin) Direction of D01Z~D03Z, C08Z,10Z,12Z,16Z Assembling state of R01P ~ R21P & IC01P Assembling state of screw between INV-IC &

Heat-sink DC 15V output of Power module.

* 18 K ModelCheck

Short of SPM2 pins (GND – P, U, V, W pin) Direction of D01Z~D03Z, C08Z,10Z,12Z,16Z Assembling state of R01P ~ R21P & IC01P Assembling state of screw between INV-IC &

Heat-sink DC 15V output of Power module.

V

U

W

Ω




7• Supplied power is not normal• Indoor/outdoor fan is locked• Too much refrigerant• Defect in current sensing circuit in outdoor pcb assembly

Over current Error(CT2)

Supplied voltage toOutdoor pcb is aboutAC 220/240V ?

Does indoor / outdoor fan worknormally ?

YES

No

Check power source

No

Check indoor / outdoor fan andadjust.

Check flow

Refrigerant pressure is right ?

YES

No

Check refrigerant pressureand adjust.

Current sensing circuit is right ?

YES

No

Check current sensing circuit.- check CT is damaged in outdoor pcb

(output wire is disconnected to pin or not)- BD01N is inserted in right position

(refer marking on pcb and component)- Spec of R01N (1kΩ), R02N (1.65kΩ) is correct- Direction of diode (D01N, D02N) is right


Service Manual 63


8• Indoor fan is locked or separated• Fan connector is not connected to indoor pcb assembly• Defective in DC-fan driving circuit

Indoor fan is locked(BLDC fan model only)

Indoor fan is rotating ? (1) Indoor fan is rotating ? (2)

YES

No

Check indoor unit- remove obstacles in indoor unit- fan assembled correctly.

No

Check soldering state of CN-Motor1 & assemblingstate of DC Fan connector

Check flow

DC–fan driving circuit is right ?

YES

No

Check DC Fan Driving circuit(Soldering state & Direction)- R01F~R09F, C01F~C03F, IC01F~IC03F, Q01F~Q02F, ZD01F

9• Outdoor fan is locked by an obstacle (ex : branch of tree, bar…etc)• Fan connector is not connected to outdoor pcb assembly• Defective in DC-fan driving circuit

Outdoor fan is locked(BLDC fan model only)

Outdoor fan is rotating ? (1) Outdoor fan is rotating ? (2)

YES

No

Check outdoor unit- remove obstacles in outdoor unit

No

Check connector is not connected to outdoor pcbassembly (CN-FAN2)

Check flow

DC–fan driving circuit is right ?

YES

No

Check DC Fan driving circuit(Soldering state & Direction)- R01F~R05F, C01F~C03F, Q01F~Q04F, ZD01F





10• D_pipe TH. is short or open • D_pipe TH. is not connected to the outdoor pcb assembly• Damage or defect on the sensing circuit of outdoor pcb assembly

D-Pipe TH. is short oropen

D_PIPE TH. is connected toOutdoor pcb assembly ?

D_PIPE TH. is right ?

YES

No

Connect to CN-D_PIPE in outdoor pcb assembly


No

Check D_PIPE TH.- Measure resistance of TH. (about 200kΩ at 25°C.)

YES

No


Check flow


Service Manual 65

Wiring Diagram

Schematic Diagram

Indoor UnitModels: AS-W0964DH0, AS-W0964GH0

Models:AS-W1264DH0, AS-W1865DH0, AS-W1264GH0, AS-W1224DH0, AS-W1424DH0, AS-W1825DH0

Schematic Diagram


Schematic Diagram

Outdoor UnitModels: AS-W0964DH0, AS-W0964GH0

Models: AS-W1264DH0, AS-W1264GH0, AS-W1224DH0, AS-W1424DH0

Service Manual 67

Schematic Diagram

Models: AS-W1865DH0, AS-W1825DH0


Schematic Diagram

Components Location

• TOP VIEW

• BOTTOM VIEW

Indoor UnitModels: AS-W1264DH0, AS-W1865DH0, AS-W1264GH0, AS-W1224DH0, AS-W1424DH0, AS-W1825DH0

Service Manual 69

• BOTTOM VIEW

• TOP VIEW

Schematic Diagram

Models: AS-W0964DH0, AS-W0964GH0


C16Z

SPM3:6002EC2005CSPM3:6002EC2005D

R01

P

R12

P

R11

P

R03

P

R13

P

R14Z

22

C12

Z

21

R15Z

D03Z

25 2623

R21Z

R22Z

24

R16Z

C08

Z

1

C10

ZR13Z

D02Z

D01Z

IC02

S

IC01

S

R06

S

C19Z

17

15

13

SPM3

5

9R20Z

11

IGBT

C05

S

R05S

C06S

D01S

R02

S

R01

S

C09S

PCB : 6870A90055M_1(040221)Assy : 6871A10128

-

R03

S

2004.02.21.

-+~

BD

02S

~

R02

F

R02D

R21

P

R14

P

C05D

R02

P

L2

R17

P

R16

P

R15

P

C02D

CN-LEV

C05H

IC01

D

CN-S/VALVE2 CN-TESTCN-S/VALVE1

RD WCN-NOISE2

C09J

D03K

WCN-NOISE3BK

C01J C02J

WH

C10J

T1

ZD01K

IC02K

IC01K

CN-D_PIPE

C02F

R04

PBL-V

R23

Z

C06

D

RD-U

27

C03

DZ

D01

F

129

R01D

C01D

D01

D

87 13

L1

CN-FAN2

POWER MODULE

C07D

20YL-W

35

C02S

C03F

R01Y

16

LED01M

MICOM

R02Y

R03Y

C01Y

D01Y

OJ0

1

EEPROM

C04

DR

05F

C01C

RXD

5V

TXD

C02A

IC02M

OS

C01

B

CN-TH2

GND

C01HC04H

CN-TH1

C03H C02H

R07C

15V

D02

N

GND

R05

C

C01S

IC01A

CN-PC

J09~12(JAPAN)

J13~15(EUROPE)

J01~04(EUROPE)J01

J02

J03

J04

C03S

J09

J10

J11

J12

J13

J14

J15

J16

CN-COIL1

CN-COIL2

+~

BD

01S

~

J05~08(JAPAN)C01M

J08

J07

J05

J06

R03

C

-

~

D01NBD

01N

R01N

D01C

~

C03C

R02N

+-

C01N

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CN-FAN1/PUMP

RY-H/PUMP RY-4WAY

3

+4

CT

CN-PUMP

J24

C04J C05JR09K

NF01J

ZNR01J

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R05

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R08

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FU

SE

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D02

C

D02K

R10K

C04K

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J22

J21

J20

J19

J18

J17

WC

N-N

OIS

E1

SU

RG

E

J26

J25

R02

J

R03

J

N/F02J

RY_PWR

4

R04C

R01

C

Q01

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~B

D01

CC

02C

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C

3

C08J

C06JC07J

J33

1

7

J34

J32

J31

~

PTC

J28

J27

J29

J30 J27~34(JAPAN)

C10J

WCN-NOISE3

C01J

WH

C02J

NF01J

SU

RG

E

R01J

ZNR02J

WC

N-N

OIS

E1

R03

J

J22N/F02J

J24J23

C04JC05J

J21

R02

J

J26J25

C06J

C08J

C07J

J27J30

J28

R12Z

R10Z

C08P

C06P

C01K

C01F

C02K

R01F

C15Z

R10P

D03K

C09J

WCN-NOISE2 RDBK

R02F

CN-TEST

IC02M

CN-S/VALVE1

R08Z

Q01F

R09Z

R07Z

R11Z

Q03F

33

C05H

CN-LEV

R19P

R18P

R20P

CN-S/VALVE2

L2

R17P

R16P

R15P

C02D

IC01D

R08P

C05D

C05P

IC01P

R06P

C04Z

R04Z

C01P

R05P

C02P

R07P

C03P

R09P

C03Z

C02Z

R02Z

C06Z

C05Z

R05Z

C16Z

R06Z

R03Z

D02N

R01A

17

R03AR

01M

IC01K

D01K

R07K

R09K

R08K

FUSE

R06K

C03K

ZD03K

R05K

ZNR01J

R02M

OSC01B

C01A

C04C

R01X

C01X

R02X

R07S

1

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16

R01K

C08S

R02K

R04K

IC02K

C18Z

C07S

R08S

D02C

J17

D02K

ZD02K

J19J20

J18

R02A C

02A

R07CR05C

R06C

LED01M

R10K

ZD01K

C04KIC01A

CN-PC

R04M

R03M

R08H

R06H

R05H

R03H

OJ01

R02L

Q02F

Q04F

R03F

R03Y

C01Y

R03N

EEPROM

R01L

R02Y

C02N

D01Y

1 1

64

C07P

C01T

C01B

R17H

C01C

MICOM

64

49

POWER MODULE

1213

C01D

89

D01D

C01L

C03D

C04D

ZD01F

R05F

R01D

CN-D_PIPECN-TH1

C04H

C03H

R04H

CN-TH2

C01H

C02H

R02H

R01H

CN-FAN2

C03F

R01Y

31 5R07H

R04F

C02F

R01C

RY_PWR

R08C

Q01C

R04C

R02C

+

D01N

R01N

R02N

C01N

BD01C

C03C

R03C

D01C

C02C

BD01N

J33J32

J31

J29

J34

CN-OXY2

CT

T1

+

RY-H/PUMPRY-OXY RY-4WAY

C01S

J09

J10

J11

J12

J13

J16

J15

J14

CN-FAN1/PUMPCN-4WAY

C01M

J08J07

J06

CN-COIL1

SPM3

R04P R

23Z

C04P

R02D

C06D

BL-V

RD-U

R21PR

14P

7

L1

R13P

2426

R01P

R12P

R02P

27

R21Z

R22Z

25

R16Z

R03P

R11P

C19Z

C07D

YL-W

6

8919 1720 111315

R20ZR14Z

SPM3

D03Z

R15Z

R19Z

C01Z

R01Z

C13Z

C11Z

23 22

C12Z

R18Z

21

C14Z

C17Z

R17Z

R06S

D01Z

R13Z

D02Z

5

IC01S

1

C10Z

C09Z

C08Z

C07Z

J01

J03

J02

J04

C02S

R01S

C03S

CN-COIL2

BD01S

J05

BD02S

IC02S

C06S

R02S

IGBT

R05S

D01SC05S

R03S

C09S

• TOP VIEW

Schematic Diagram

• BOTTOM VIEW

Outdoor UnitModels: AS-W0964DH0, AS-W1264DH0, AS-W0964GH0, AS-W1264GH0, AS-W1224DH0, AS-W1424DH0

Service Manual 71

Schematic Diagram

C06J

R01J

ZNR02J

CN-FAN2

R13P

R03P

C03P R09P

IC10P

R17PR15P R16P

CN-LEV

R16Z

C15Z

C14Z

R18Z

C13Z

R17Z

R15Z

C11Z

D03ZC12Z

C09Z

Nw

SPM2

1

R01P

R02P

Nu

Nv

24

V

U

W

D02ZC10Z

C07Z

C08Z

IC01S

D01Z

R06S

C05S

C06S

R05S

D01S

23

C20Z

P

C10S

R01S

R02S

IGBT

C01S

R01L

C07S

C04P

R06P

R21P

C02P

C01PR11P

R12P

R07P

R05P

R04P

C18ZR14P

R04Z

C01

Z

R01Z

IC02S

R08Z

R08S

R07Z

R07S

R02L C08S

C06P

R19

Z

C18Z

C05

P

C17

Z

R20Z

C08P

R20P

R05Z

R10

P

C04

Z

R02Z

R08P

C02

Z

R18P

R06Z

R19P

R03

ZC

05Z

C07P

C03Z

C01X

R01

XIC

02M

C06Z

R10

Z

R09

Z

R11

Z

EEPROM

C01L

R01D

C01D

R12

Z

C01T641

MICOM

C02D

POWER MODULE

C07D

C02S

C05D

D01D

R02

D

L2

C06D

L1

IC01D

C03F

C03S

D03K

CN-PC C05HCN-TEST

C11J

FUSE

RY-PWR

Q01C

ZD03K

R06H

R17H IC01A

R02

XIC

01MR01M

OS

C01

BR02A

R01AR03A

C01A

C02A

LED01M

0J01

CN-D_PIPE

R03M

C04H

R04M

C03DC04D

R08H

C02N

R02M

C03H

R03N

R07HR05H

CN-TH1

R01K

C02

K

R05K

R07K

R06K

R02

K

C01K

R04K

IC02K

R01H

C01N

C02HR04H

C01H

R03H

CN-TH2

C01Y

IC01

K

R02H

C02F Q01F Q02F

Q04F

R05

F

R03F

ZD

01F

C01F

R02

F

R04F Q03FR01F

C04S

D01Y

R03Y

R02Y

R01Y

R02C

C02C

R01C

R04C

R03C

D01C

BD01C

JS24~25

JS26~27

D01K

R08K

R09K

NF03J

R10K

ZD01K

D02K

ZD02K

C04K

ZNR01J

SURGE

C01J

C03J

C02J

R02

J

R05CR01N

D02NC01C

C03K

D02C

R07C

R06CR02N

D01N

C03C

BD01N

NF01J

C04J

R03J

C05J

BD01S

R03

S

C09S

BD02S

CN-COIL1

CN-4AWY

CN-COIL2

JS21~23

WCN-CAP1

RY-4WAY

WCN-CAP2

RY-LRY-H

CN-FAN1

R04J

CT

T1

PTC

C07J

C08J

C09

J

NF02J

CN-FAN2

CN-LEV

PWB P/NO : 6870A90148A(030509)

10R15Z

9

8

7

6

5

4

3

2

1

R16Z

R17Z

C16Z

SPM2

IC01S

23

22

21

20

19

18

17

16

15

14

13

12

11

R14Z

R13Z

C12Z

C10Z

C10S

R05S

R06S

C08Z

C05S

C06S

IPM

R01S

R02S

R14P

PWB ASSY P/NO : 6871A20349

R13P

R03P

C18Z

Nv

Nw

Nu

25

24

RD-U

R04P

R02P

R01P

R21P

R11P

R12P

R15PR17P R16P

987

P

W

V

U

YL-W

BL-V

1312

IC02S

56 13

C07D

POWER MODULE

C06DD01D

EEPROM

C01D

GND

15V

MICOM

C03F

R01

DL2

L1

IC01D

C02D

C05D R02

D

BD01N

C03K

C01N

CN-TESTC05H CN-PC

LED01M

OS

C01

B

IC01A

OJ01

C02A

D03K

RXD

TXD

R05K

ZD03K

R06K

IC02

K

R07K

CN-TH2

C02H

CN-D_PIPE

C04DC03D

C04H

C02F

1

1

ZD

01F

R05

F

R02

F

CN-TH1

C03H

C02CD01Y

1

R03Y

C01Y

C01H

Q01C

R01C

IC01

K

ZD01K

R04C

D01C

R02Y

R01Y

BD01C

-+

C01C

R07C

R05C

R02C

R03C

R06C

D02C

C03C

+

C11J

BK(WCN-NOISE1)FUSE

RD

JS26~27

ZD02K

R09K

R08K

D01K

NF03J

ZNR02J

BR BL

R01J

ZNR01J

SURGE

D02K

C04K

R10K

JS24~25

JS01~05

NF01J

-

R02N

R01N

D02N

D01N

C01J

C03J

C02J

BK

(WC

N-N

OIS

E2)

JS06~10

BK(WCN-NOISE3)

CN-FAN1

~-

D01S

R03

S

C09S

~ + -

IGBT

BD02S

JS21~23

CN-COIL1

~~

C01S

+

CN-4WAY

CN-COIL2

C02S

BD01S

RY-4WAYRY-HRY-L

C03S

WCN-CAP2 WCN-CAP1

3

CT

4 7

C04S

T1

1

PTC

3

RY-PWR

C07J

C08J

4

C09

J

JS16~20

BK(WCN-NOISE4)

JS11~15

C06J

C04J

C05J

NF02J

• TOP VIEW

• BOTTOM VIEW

Models: AS-W1865DH0, AS-W1825DH0


Schematic Diagram

DISPLAY ASSEMBLY

– 6871A20574A

– 6871A20624A

Service Manual 73

Product Specifications

Product SpecificationsTable-1

Model Name

Item UnitW

MIN kcal/h.(W)Btu/h.

WCooling Capacity Type kcal/h.(W)

Btu/h.W

Max kcal/h.(W)Btu/h.

WMIN kcal/h.(W)

Btu/h.W

Heating Capacity Type kcal/h.(W)Btu/h.

WMax kcal/h.(W)

Btu/h.IN:20°C,Out: -10°C(Heater ON) Btu/h.IN:20°C,Out: -10°C(Heater OFF) Btu/h.

Power Input Cooling WHeating WHeating(-10°C,Heater ON) WHeating(-10°C,Heater OFF) W

Running Current Cooling AHeating AHeating(-10°C,Heater ON) AHeating(-10°C,Heater OFF) A

Starting Current Cooling AHeating ACooling kcal/hW

EER Btu/h.WHeating kcal/hW

Btu/h.WCOP Cooling W/W

Heating W/WPower Supply Ø,V,HzPower Factor %Air Circulation Indoor,Max m3/min(CFM)

Outdoor,Max m3/min(CFM)Moisture Removal l/h.(pts/h.)Noise Level Indoor,High dB(A)±3(Sound Med. dB(A)±3Pressure,1m) Low dB(A)±3

Outdoor,Max dB(A)±3Refrigerant(R410A)ChargePower Cord AWG#:P*mm2

Connecting Cable AWG#:P*mm2

Connecting Tube Liquid Side mm(in)(Ø. Socket Flare) Gas Side mm(in)

Length,std m(in)Drain Hose (O.D , I.D) mm(in)

Indoor mmDimension inch(W*H*D) Outdoor mm

inchNet Weight Indoor kg(lbs)

Outdoor kg(lbs)

1,758 1,143 2,7551,512 983 2,3696,000 3,100 9,4002,637 3,516 5,2742,268 3,024 4,5369,000 12,000 18,0003,033 4,043 6,0962,608 3,478 5,24210,350 13,800 20,8001,465 879 1,4061,260 756 1,2105,000 3,000 4,8003,296 4,043 6,0652,835 3,478 5,21611,250 13,800 20,7003,810 4,659 6,6513,276 4,007 5,72013,000 15,900 22,700

- - -- - -

690 970 1,640910 1,120 1,680

- - -- - -

3.4 4.2 74.2 5.1 8

- - -- - -

3.4 4.2 7.54.2 5.1 8.5

3.29 3.29 2.813.04 13.04 10.983.12 3.12 3.1110.36 12.32 12.323.82 3.82 3.223.62 3.61 3.61

1,220-240,50 1,220-240,50 1,220-240,5097 97 97

7.2(254) 8.7(307) 13.0(459)26(918) 26(918) 42(1483)1.4(2.94) 1.5(3.2) 2.12

38 40 4235 37 -29 31 3648 49 55

810(26.5) 845(28.5) 1200(40.8)16:3*1.0 16:3*1.0 12:3*2.516:4*1.0 16:4*1.0 12:4*2.56.35(1/4) 6.35(1/4) 6.35(1/4)9.52(3/8) 12.7(1/2) 12.7(1/2)7.5(295) 7.5(295) 7.5(295)

21.5,16.0(0.85,0.63) 21.5,16.0(0.85,0.63) 21.5,16(0.85,0.63)758*260*160 758*260*160 758*260*16029.8*10.2*6.3 29.8*10.2*6.3 29.8*10.2*6.3770*540*245 770*540*245 770*540*24530.3*21.3*9.6 30.3*21.3*9.6 30.3*21.3*9.6

9(20) 9(20) 13.5(30)38(83.8) 38(83.8) 60(132.3)

AS-W0964DH0AS-W0964GH0

AS-W1264DH0AS-W1264GH0 AS-W1865DH0

Product Specifications


Table-2

Buyer Models

Item Unit

Min. kcal/h.(W)Btu/h.

Cooling Capacity Type kcal/h.(W)Btu/h.

Max. kcal/h.(W)Btu/h.

Min. kcal/h.(W)Btu/h.

Heating Capacity Type kcal/h.(W)Btu/h.

Max. kcal/h.(W)Btu/h.

Power Input Cooling WHeating W

Running Current Cooling AHeating A

Starting Current Cooling AHeating ACooling kcal/hW

EER Btu/h.WHeating kcal/hW

Btu/h.WCOP Cooling W/W

Heating W/WPower Supply Ø,V,HzPower Factor %Air Circulation Indoor,Max m3/min(CFM)

Outdoor,Max m3/min(CFM)Moisture Removal µP/h.(pts/h.)Noise Level Indoor,High dB(A)±3(Sound Med. dB(A)±3Pressure,1m) Low dB(A)±3

Outdoor,Max dB(A)±3Refrigerant(R410A)ChargePower Cord AWG#:P*mm2

Connecting Cable AWG#:P*mm2

Connecting Tube Liquid Side mm(in)(Ø. Socket Flare) Gas Side mm(in)

Length,std m(in)Drain Hose (O.D , I.D) mm(in)Dimension Indoor mm(W*H*D) inch

Outdoor mminch

980(1,140) 989(1,150) 1,548(1,800)3,890 - 6,142

3,024(3,517) 3,528(4,102) 4,536(5,274)12,000 14,000 18,000

3,474(4,040) 3,732(4,340) 4,987(5,800)13,800 14,810 19,790

757(880) 765(892) 1,204(1,400)3,003 3039 4,777

3,478(4,043) 3,780(4,396) 5,242(6,096)13,800 15,000 20,800

4,007(4,660) 4,119(4,790) 5,761(6,700)15,900 16,344 22,8611,100 1,320 1,6001,120 1,300 1,685

5.0 5.9 7.05.1 5.8 8.05.0 6 7.55.5 7.1 8.5

2.75 2.67 2.8410.91 10.61 11.253.11 2.91 3.1112.32 11.54 12.343.20 3011 3.303.61 3.38 3.62

1,220,60 1, 220, 60 1,220,6097 97 97

8.7(307) 8.7(307) 13.0(459)26(918) 26(918) 42(1483)1.5(3.2) 1.5(3.2) 2.12

40 40 4237 37 -29 29 3649 49 55

845(28.5) 915 1200(40.8)16:3*1.0 16:3*1.0 12:3*2.516:4*1.0 16:4*1.0 12:4*2.56.35(1/4) 6.35(1/4) 6.35(1/4)12.7(1/2) 12.7(1/2) 12.7(1/2)7.5(295) 7.5(295) 7.5(295)

21.5,16.0(0.85,0.63) 21.5,16(0.85,0.63) 21.5,16(0.85,0.63)758*260*160 758*260*160 1090*300*17829.8*10.2*6.3 29.8*10.2*6.3 42.9*11.8*7.0770*540*245 770*540*245 870*655*32030.3*21.3*9.6 30.3*21.3*9.6 34.3*25.8*12.6

AS-W1224DH0 AS-W1424DH0 AS-W1825DH0

Service Manual 75

Exploded View

Exploded View

135301

152302

342800

264110

263230

359011

131410 733010

135312

135311

159901

268712

146811

668713

346810

266090

13551635211B

354210

249951 268714267110

Indoor Unit


Exploded View

Outdoor UnitModels: AS-W0964DH0, AS-W1264DH0AS-W0964GH0, AS-W1264GH0, AS-W1224DH0, AS-W1424DH0

(UL Chassis)

554031

435511

552202

552116

552201

554160

561410

552111

550140 552203-1

552203-2

430410

649950

552102

437210

435301

559010

546810

658740

447910

263230

668711

Service Manual 77

Exploded View

554031

437212

263230-1

435511

552202

567502

552116

554160

561410

550140 552203-1

552203-2

430410

649950

552102

559010

546810

447910

263230-2

Models: AS-W1865DH0, AS-W1825DH0 (UE Chassis)


Replacement Parts List

Replacement Parts ListParts List (Indoor)

LOCATIONDESCRIPTION

PART No.REMARKS

No.

131410 CHASSIS ASSEMBLY 3141A20019C 3141A20019C 3141A20020B

135311 GRILLE ASSEMBLY,DISCHARGE 3531A10307A 3531A10307A 3531A20252A

135312 GRILLE ASSEMBLY,FRONT 3531A14002D 3531A14002B 3531A20253K

135516 COVER ASSEMBLY,MOTOR 3551A20156A 3551A20156A 3551A20154A

146811 MOTOR ASSEMBLY,STEP 4681A20055A 4681A20055A 4681A20055A

152302 FILTER(MECH),A/C 5230A20051A 5230A20051A 5230A20052A

159901 VANE,HORIZONTAL 5990A20048A 5990A20048A 5990A20049A

249951 CONTROL BOX ASSEMBLY 4995A20495B 4995A20495A 4995A20495C

263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A

264110 POWER CORD ASSEMBLY 6411A20013E 6411A20013E 6411A20014Z

266090 H.V ASSEMBLY 6609A10003Z 6609A10003Z -

267110 REMOTE CONTROLLER 6711A20077Y 6711A20077Y 6711A20077Y

268712 PWB(PCB) ASSEMBLY,DISPLAY 6871A20574A 6871A20574A 6871A20624A

268714 PWB(PCB) ASSEMBLY 6871A20675A 6871A20156A 6871A20156B

342800 BEARING 4280A20004B 4280A20004B 4280A20004A

346810 MOTOR ASSEMBLY,INDOOR 4681A20151B 4681A20091J 4681A20091J

354210 EVAPORATOR ASSEMBLY,FIRST 5421A20218A 5421A20218A 5421A20220A

359011 FAN ASSEMBLY,CROSS FLOW 5901A20017F 5901A20017F 5901AR2441E

733010 PLATE ASSEMBLY,INSTALL 3301A20011A 3301A20011A 3301A20002A

35211B TUBE ASSEMBLY,TUBING 5211A21363A 5211A21363B 5211A21378C

W0CZZ CAPACITOR,DRAWING 3H01487K - -

AS-W0964DH0 AS-W1264DH0 AS-W1865DH0

NOTE) *Please ensure GCSC since these parts may be changed depending upon the buyer's request.(GCSC WEBSITE http://biz.LGservice.com)

Service Manual 79


Parts List (Indoor)

LOCATIONDESCRIPTION

PART No.REMARKS

No.

131410 CHASSIS ASSEMBLY 3141A20019C 3141A20019C 3141A20019C 3141A20019E 3141A20020B

135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10307A 3531A10307A 3531A10307J 3531A10307P 3531A20252H

135312 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A14003C 3531A14003D 3531A14002R 3531A14002R 3531A20253S

135314 GRILLE ASSEMBLY,INLET 3531A10339B 3531A10339B 3531A10312D 3531A10312D 3531A20254E

135516 COVER ASSEMBLY,MOTOR 3551A20156B 3551A20156B 3551A20156B 3551A20156B 3551A20154A

146811 MOTOR ASSEMBLY,STEP 4681A20055A 4681A20055A 4681A20055A 4681A20055A 4681A20055A

152302 FILTER(MECH),A/C 5230A20051A 5230A20051A 5230A20051A 5230A20051A -

159901 VANE,HORIZONTAL 5990A20048A 5990A20048A 5990A20048A 5990A20048A 5990A20049A

249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20495B 4995A20495A 4995A20495E 4995A20495F 4995A20495D

263230 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323A20004A 6323A20004A

264110 POWER CORD ASSEMBLY 6411A20013E 6411A20013E 6410A20007E 6410A20007E 6410A20007F

266090 H.V ASSEMBLY 6609A10003Z 6609A10003Z 6609A10003Z 6609A10003Z 6609A10003Z

267110 REMOTE CONTROLLER ASSEMBLY 6711A20077Y 6711A20077Y 6711A20124A 6711A20124A 6711A20124A

268712 PWB(PCB) ASSEMBLY,DISPLAY 6871A20574A 6871A20574A 6871A20574A 6871A20574A 6871A20624A

268714 PWB(PCB) ASSEMBLY,MAIN 6871A20675A 6871A20156A 6871A20156D 6871A20156C 6871A20156B

342800 BEARING 4280A20004B 4280A20004B 4280A20004B 4280A20004B 4280A20004A

346810 MOTOR ASSEMBLY,INDOOR 4681A20151B 4681A20091J 4681A20091J 4681A20091J 4681A20091J

354210 EVAPORATOR ASSEMBLY,FIRST 5421A20218A 5421A20218A 5421A20218A 5421A20218A 5421A20220A

359011 FAN ASSEMBLY,CROSS FLOW 5901A20017F 5901A20017F 5901A20017F 5901A20017F 5901AR2441E

733010 PLATE ASSEMBLY,INSTALL 3301A20011A 3301A20011A 3301A20011A 3301A20011A 3301A20002A

35211B TUBE ASSEMBLY,TUBING 5211A21363A 5211A21363B 5211A21363B 5211A21363B 5211A21378C

W0CZZ CAPACITOR,DRAWING 3H01487K - - - -

AS-W0964GH0 AS-W1264GH0 AS-W1224DH0 AS-W1424DH0 AS-W1825DH0




Parts List (Outdoor)

263230 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G -

430410 BASE ASSEMBLY,OUTDOOR 3041A20066A 3041A20066A 3041A20022Q

435301 GRILLE,DISCHARGE 3530A20006B 3530A20006B 3530A20007B

435511 COVER ASSEMBLY,CONTROL 3551A30115G 3551A30115G 3551A30102A

437210 PANEL ASSEMBLY,FRONT 3721A20027Q 3721A20027Q 3721A20005H

437212 PANEL ASSEMBLY,REAR - - 3720AP0003D

447910 BARRIER ASSEMBLY,OUTDOOR 4791A30002G 4791A30002G 2H02110G

546810 MOTOR ASSEMBLY,OUTDOOR 4681A20068G 4681A20122A 4681A20028K

550140 ISOLATOR,COMP 4984AR4387A 4H00982E 4H00982E

552102 TUBE,CAPILLARY BEND 5210A21447E 5210A31380D

552102-1 TUBE,CAPILLARY BEND 5210A21447M - -

552102-2 TUBE,CAPILLARY BEND 5210A33068B - -

552111 TUBE ASSEMBLY,CAPILLARY 5211A21393C 5211A21393B -

552116 TUBE ASSEMBLY,REVERSING 5211A10466B 5211A10466C 5211A21140B

552201 VALVE,CHECK 3H01552F 3H01552F -

552202 VALVE,REVERSING 5220AR3228D 5220AR3228D 5220AR3228E

554031 CONDENSER ASSEMBLY 5403A20019V 5403A20019V 5403A21012B

554160 COMPRESSOR 5416A90045A 5416A90029A 5416A90024A

559010 FAN ASSEMBLY,PROPELLER 5901A10033A 5901A10033A 1A00195B

561410 COIL ASSEMBLY,REVERSING 6141A20010S 6141A20010S 6141A20010H

649950 CONTROL BOX ASSEMBLY, OUTDOOR 4995A21006H 4995A21006J 4995A20346F

668711 PWB(PCB) ASSEMBLY, MAIN(OUTDOOR) 6871A10128P 6871A10128Q 6871A20349F

552203-1 VALVE,SERVICE 5220A20005B 5220A20005B 5220A20006A

552203-2 VALVE,SERVICE 5220A20001Q 5220A20006F 2H02479F

W0CZZ CAPACITOR,DRAWING - 0CZZA90002N 3H00611R

LOCATIONDESCRIPTION

PART No.REMARKS

No. AS-W0964DH0 AS-W1264DH0 AS-W1865DH0


Service Manual 81


Parts List (Outdoor)

263230-1 THERMISTOR ASSEMBLY 6323A20001C 6323A20001C 6323A20001C 6323A20001C 6323A20001B

263230-2 THERMISTOR ASSEMBLY 6323A20003G 6323A20003G 6323A20003G 6323A20003G 6323A20003C

430410 BASE ASSEMBLY,OUTDOOR 3041A20066A 3041A20066A 3041A20066A 3041A20066A 3041A20022Q

435301 GRILLE,DISCHARGE 3530A20006G 3530A20006G 3530A20006G 3530A20006G 3530A20007B

435511 COVER ASSEMBLY,CONTROL(OUTDOOR) 3551A30115G 3551A30115G 3551A30115G 3551A30115G 3551A30102A

437210 PANEL ASSEMBLY,FRONT(OUTDOOR) 3721A20027Q 3721A20027Q 3721A20027Q 3721A20027Q 3721A20005H

437212 PANEL ASSEMBLY,REAR(OUTDOOR) 3721A20026M 3721A20026M 3721A20026M 3721A20026M 3720AP0003D

447910 BARRIER ASSEMBLY,OUTDOOR 4791A30002G 4791A30002G 4791A30002G 4791A30002G 2H02110G

546810 MOTOR ASSEMBLY,OUTDOOR 4681A20068G 4681A20122A 4681A20122A 4681A20122A 4681A20028L

550140 ISOLATOR,COMP 4984AR4387A 4H00982E 4H00982E 4H00982E 4H00982E

552102-1 TUBE,CAPILLARY BEND 5210A21447M 5210A21447E 5210A21447E 5210A21447E 5210A31380D

552102-2 TUBE,CAPILLARY BEND 5210A33068B 5210A33068A 5210A33068A 5210A33068A 5210A31380E

552111 TUBE ASSEMBLY,CAPILLARY 5211A21393C 5211A21393B 5211A21393B 5211A21393E -

552116 TUBE ASSEMBLY,REVERSING 5211A10466B 5211A10466C 5211A10466C 5211A10466D 5211A21140B

552201 VALVE,CHECK 3H01552F 3H01552F 3H01552F 3H01552F 5220A30004A

552202 VALVE,REVERSING 5220AR3228D 5220AR3228D 5220AR3228D 5220AR3228D 5220AR3228E

554031 CONDENSER ASSEMBLY,BENT 5403A20019V 5403A20019V 5403A20019V 5403A20019V 5403A21012B

554160 COMPRESSOR 5416A90045A 5416A90029A 5416A90029A 5416A90029A 5416A90024A

559010 FAN ASSEMBLY,PROPELLER 5901A10033A 5901A10033A 5901A10033A 5901A10033A 1A00195B

561410 COIL ASSEMBLY,REVERSING VALVE 6141A20010S 6141A20010S 6141A20010S 6141A20010S 6141A20010H

649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A21006H 4995A21006J 4995A21006M 4995A21006N 4995A20346H

552203-1 VALVE,SERVICE 5220A20005B 5220A20005B 5220A20005B 5220A20005B 5220A20006A

552203-2 VALVE,SERVICE 5220A20001Q 5220A20006F 5220A20006F 5220A20006F 2H02479F

668711 PWB(PCB) ASSEMBLY, MAIN 6871A10128P 6871A10128Q 6871A10128U 6871A10128V 3871A20349G

W0CZZ CAPACITOR,DRAWING 0CZZA90002M 0CZZA90002N 0CZZA90002N 0CZZA90002N 0CZZA90002N

LOCATIONDESCRIPTION

PART No.REMARKS

No. AS-W0964GH0 AS-W1264GH0 AS-W1224DH0 AS-W1424DH0 AS-W1825DH0


P/No.: 3828A20462GMay, 2005

Printed in Korea

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