manual servicio mini split 36

LG RoomAir ConditionerSERVICE MANUAL

LG

MODELS: LS-C302MMM0LS-C306MMB0/MMM0LS-H306MMM0LS-C362NMD0/NMM0LS-H362NMD0/NMM0LS-C382NMB0/NMM0LS-H382NMB0/NMM0

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 CONTENTSLG Model Name ...............................................................................................................................................3Safety Precautions..........................................................................................................................................4Dimensions .....................................................................................................................................................9

Symbols Used in this Manual .....................................................................................................................9

Indoor Unit..................................................................................................................................................9

Outdoor Unit .............................................................................................................................................10

Product Specifications ................................................................................................................................12Installation .....................................................................................................................................................15

Installation of Indoor, Outdoor unit ...........................................................................................................15

Flaring Work and Connection of Piping....................................................................................................17

Connecting the cable between indoor unit and outdoor unit ....................................................................24

Air Purging ...............................................................................................................................................28

Test Running ............................................................................................................................................30

Operation ......................................................................................................................................................31Main unit Function ...................................................................................................................................31

Display Function.......................................................................................................................................38

Self-diagnosis Function............................................................................................................................38

Name and Function-Remote Control .......................................................................................................39

Disassembly ..................................................................................................................................................40Indoor Unit................................................................................................................................................40

Schematic Diagram.......................................................................................................................................44Wiring Diagram.........................................................................................................................................49

Electric Control device..............................................................................................................................51

Troubleshooting Guide .................................................................................................................................55Refrigeration Cycle Diagram ....................................................................................................................55

Pipe Length and the Elevation .................................................................................................................56

3-way Valve ..............................................................................................................................................57

Cycle Troubleshooting Guide ...................................................................................................................63

Electronic Parts ........................................................................................................................................64

Exploded View ..............................................................................................................................................70Indoor Unit...............................................................................................................................................70

Outdoor Unit ............................................................................................................................................72

Replacement Parts List ................................................................................................................................74Indoor .......................................................................................................................................................74

Outdoor ....................................................................................................................................................77

Service Manual 3

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 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. 1~9 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


Safety Precautions

Safety PrecautionsTo 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

Service Manual 5

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.


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

Service Manual 7

Safety Precautions

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.


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

Service Manual 9

Dimensions

Tubing hole cover

Tubing hole cover

Installation plate

DW

H

W

H

Tubing hole cover

Tubing hole cover

Installation plate

D

W

H

Tubing hole cover

Tubing hole cover Installation plate

D

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

W mm 1,259 1,499

H mm 349 349

D mm 205 205

Model

DimensionSM CHASSIS SN CHASSIS

Dimensions


Outdoor Unit

Dimensions

MODELDIM

W

L7 L6 L8 L9

D L1L2

L3L1

0L1

1

L4L5

H

Gas side3-way valveLiquid side3-way valve

W mm 870

H mm 800

D mm 320

L1 mm 370

L2 mm 340

L3 mm 25

L4 mm 775

L5 mm 25

L6 mm 546

L7 mm 162

L8 mm 162

L9 mm 54

L10 mm 79

L11 mm 76.4

30k SERIES

• 30k

Service Manual 11

Dimensions

320

790

385

72

482 4-ø12Hole

249

71

145 500 145 1033

4 354

10

265

440 925

965

130

40

80

292.

5

(Air intake vent)

(Air intake vent)

(Air

inta

ke v

ent)

• 36k, 38K series


Product Specifications


Cooling CapacityBTU/h(kcal/h)

W

Heating CapacityBTU/h(kcal/h)

WMoisture Removal l/hPower Source Ø, V, Hz

Air Circulation m3/min

Noise Level dB(A)±3

Input W

Runnig Current A

Starting Current A

E.E.R. BTU/h-WC.O.P W/W

Motor Output W

mm

Net. Weight kg

Refrigerant(R-22) gAirflow Direction Control (Up & Down)Airflow Direction Control (Right & Left)Negative lonAir Purifying FilterDeicerHot StartChaos WindMicom DryTimerSelf DiagnosisRemocon type

Service valve

Sleeping OperationDrain HoseConnecting CablePower Cord

28,000(7,056)/32,000(8,064) 28,000(7,056)/32,000(8,064)

8,205/9,377 8,205/9,377

29,000(7,308)/32,000(8,064) -

8,498/9,377 -

3.8 3.8

1ø,220-240V, 50Hz/1ø,220V, 60Hz 1ø,220-240V, 50Hz/1ø,220V, 60Hz

21 21

58 58

46 46

58 58

3,200/3,350 3,200/3,350

3,100/3,350 -

15.5/16.0 15.5/16.0

15/16.0 -

85 85

85 -

8.75/9.55 8.75/9.55

2.74/2.80 -

47 47

80 80

1,259 x 349 x 205 1,259 x 349 x 205

870 x 800 x 320 870 x 800 x 320

20 20

72 71

2100 1,950/2,420

YES YES

NO/YES NO/YES

NO NO

YES YES

YES NO

YES NO

YES YES

YES YES

24hr ON/OFF 24hr ON/OFF

YES YES

L.C.D Wireless L.C.D Wireless

3/8"(9.52) 3/8"(9.52)

5/8"(15.88) 5/8"(15.88)

YES YES

YES YES

0.75mm2 0.75mm2

2.5mm2 2.5mm2

Model Name

Unit

Indoor

OutdoorIndoor

OutdoorCooling

HeatingCooling

HeatingCooling

HeatingCooling

HeatingIndoorOutdoorIndoor

OutdoorIndoor

Outdoor

LiquidGas

Dimensions(W x H x D)

ItemLS-306MMM0

LS-C302MMM0

LS-C306MMB0/MMM0

Service Manual 13



W





Input W

Runnig Current A

Starting Current A


Motor Output W

mm

Net. Weight kg


Service valve


38,000(9,557) 38,000(9,577) 36,000(9,073)

11,135 11,135 10,549

3,800(9,577) - -

11135 - -

4.2 4.2 4.2

1ø,220-240V, 60Hz 1ø,220-240V, 60Hz 1ø,220-240V, 60Hz

26 26 26

58 58 58

47 47 47

58 58 58

3,970 3,970 3,970

3,970 - -

19 19 19

19 - -

91 91 91

91 - -

9.23 9.23 9.23

2.45 - -

38 38 38

30 30 30

1,499 x 349 x 205 1,499 x 349 x 205 1,499 x 349 x 205

790 x 965 x 320 790 x 965 x 320 790 x 965 x 320

25 25 25

80 80 80

1950 1950 1950

YES YES YES

YES YES YES

NO NO NO

YES YES YES

YES NO NO

YES NO NO

YES YES YES

YES YES YES

24hr ON/OFF 24hr ON/OFF 24hr ON/OFF

YES YES YES

L.C.D Wireless L.C.D Wireless L.C.D Wireless

3/8"(9.52) 3/8"(9.52) 3/8"(9.52)

3/4"(19.05) 3/4"(19.05) 3/4"(19.05)

YES YES YES

YES YES YES

0.75mm2 0.75mm2 0.75mm2

5.5mm2 5.5mm2 5.5mm2

Model Name

Unit

Indoor

OutdoorIndoor

OutdoorCooling

HeatingCooling

HeatingCooling

HeatingCooling


OutdoorIndoor

Outdoor

LiquidGas


ItemLS-H382NMB0/NMM0 LS-C382NMB0/NMM0 LS-C362NMD0/NMM0




W





Input W

Runnig Current A

Starting Current A


Motor Output W

mm

Net. Weight kg


Service valve


36,000(9,073)

10,549

36,000(9,073)

10,549

4.2

1ø, 220-240V, 50Hz

26

58

47

58

3970

3970

19

19

91

91

9.23

2.41

65

50

1,499 x 349 x 205

790 x 965 x 320

25

80

3250

YES

NO

NO

NO(OPTIONAL)

NO

NO

YES

YES

24hr ON/OFF

YES

L.C.D Wireless

3/8(9.52)

3/4(19.05)

YES

YES

0.75mm2

5.5mm2

Model Name

Unit

Indoor

OutdoorIndoor

OutdoorCooling

HeatingCooling

HeatingCooling

HeatingCooling


OutdoorIndoor

Outdoor

LiquidGas


ItemLS-H362NMD0/NMM0

Service Manual 15

Installation

Installation

Installation of Indoor, Outdoor unit1) Select the best location1. Indoor unit

Do not have any heat or steam near the unit. Select a place where there are no obstacles in

front of the unit. Make sure that condensation drainage can be

conveniently routed away. Do not install near a doorway. Ensure that the space around the left and right of

the unit is more than 30cm. The unit should beinstalled as high on the wall as possible, allowinga minimum of 12cm from ceiling.

Use a stud finder to locate studs to preventunnecessary damage to the wall.

2. Outdoor unit

If an awning is built over the unit to prevent direct sun-light or rain exposure, make sure that heat radiationfrom the condenser is not restricted.

Ensure that the space around the back and sides ismore than 10cm. The front of the unit should havemore than 70cm of space.

Do not place animals and plants in the path of thewarm air.

Take the air conditioner weight into account and selecta place where noise and vibration are minimum.

Select a place so that the warm air and noise from theair conditioner do not disturb neighbors.

Rooftop Installations:If the outdoor unit is installed on a roof structure, besure to level the unit. Ensure the roof structure andanchoring method are adequate for the unit location.Consult local codes regarding rooftop mounting.If the outdoor unit is installed on root structures or walls,this may result in excessive noise and vibration, andmaybe also classed as non serviceable installation.

2) Piping length and elevation

More than 12cmMore than

30cm

More than30cm

More than 2.3m

More than 10cm More than 10cm

More than 60cm

More than 60cm

More than 70cm

More than 10cm More than 10cm

More than 60cm

More than 60cm

More than 70cm

In case more than 5m

• Capacity is based on standard length and maximumallowance length is on the basis of reliability.

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

Outdoor unit

Indoor unit

A

B Outdoor unit

Indoor unit

A

B

CAUTION

CAUTION: Install the indoor unit on the wallwhere the height from the floors more than 2.3meters. A minimum pipe run of 7.5 meters isrequired to minimise vibration & excessive noise. 30k, 32k 5/8" 3/8" 7.5 15 30 30

36k, 38k 3/4" 3/8" 7.5 20 30 50

Pipe SizeCapacity(Btu/h) GAS LIQUID

Max.lengthA (m)

AdditionalRefrigerant

(g/m)

Max.Elevation

B (m)

StandardLength

(m)

36k, 38k

30K, 32K


Installation

3) How to fix installation plateThe wall you select should be strong and solid enough to preventvibration

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 byaligning the centerline using a level.

2. Measure the wall and mark the centerline. It is alsoimportant to use caution concerning the locationof the installation plate-routing of the wiring topower outlets is through the walls typically.Drilling the hole through the wall for piping con-nections must be done safely.

5-7m

m

(0.2

~0.

3")

Indoor

WALL

Outdoor

Installation Plate

Type "A" screw

Right rear pipingLeft rear piping

ø70mm195mm

115m

m

115m

m

180mm

Right rear piping

30k, 32k

36k, 38k

Left rear piping

50mm ø70mm180mm

115m

m

4) Drill a hole in the wall 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.

Service Manual 17

Installation

Flaring Work and Connection of Piping

1) Flaring workMain cause for gas leakage is due to defect in flar-ing work. Carry out correct flaring work in the follow-ing procedure.

1. Cut the pipes and the cable.

Use the piping kit accessory or the pipespurchased locally.

Measure the distance between the indoor and theoutdoor unit.

Cut the pipes a little longer than measureddistance.

Cut the cable 1.5m longer than the pipe length.

2. Burrs removal

Completely remove all burrs from the cut crosssection of pipe/tube.

Put the end of the copper tube/pipe in a down-ward direction as you remove burrs in order toavoid dropping burrs into the tubing.

3. Putting nut on

Remove flare nuts attached to indoor and outdoorunit, then put them on pipe/tube having complet-ed burr removal.(not possible to put them on after flaring work)

Copperpipe 90° Slanted Uneven Rough

Bar

Copper pipe

Clamp handleRed arrow mark

Cone

Yoke

Handle

Bar"A"

Pipe

Reamer

Point down

4. Flaring work

Carry out flaring work using flaring tool as shownbelow.

Firmly hold copper pipe in a die in the dimensionshown in the table above.

5. Check

Compare the flared work with figure below. If flare is noted to be defective, cut off the flared

section and do flaring work again.

mm inch mmø6.35 1/4 0 ~ 0.5ø9.52 3/8 0 ~ 0.5ø12.7 1/2 0 ~ 0.5ø15.88 5/8 0 ~ 1.0ø19.05 3/4 1.0 ~ 1.3

Outside diameter A

Flare nut

Copper tube Inclined

Inside is shiny without scratches

Smooth all round

Even lengthall round

Surfacedamaged

Cracked Uneventhickness

= Improper flaring =


Installation

2) Connection of piping-Indoor1. Remove the 2 screws of right side panel.

2. Remove the front right side panel by the arrow.

The connector can be disconnected by pulling itwhile pressing the connector's hook.

Remove the 1 screw for fixing lower panel.

3. Remove the lower panel by the arrow.

Take care not to scratch the wall and mat todrop.

1. Route the indoor tubing and the drain hose in thedirection of rear left.

2. Insert the connecting cable into the indoor unitfrom the outdoor unit through the piping hole.

Do not connect the cable to the indoor unit.

Make a small loop with the cable for easyconnection later.

Right side panel

Drain hoseMain PCB

Lower panel

Lower panel

For left rear piping

CAUTION: When install,make sure that the remain-ing parts must be removedclearly so as not to damagethe piping and drain hose,especially power cord andconnecting cable.

Service Manual 19

Installation

3. Tape the tubing, drain hose and the connectingcable. Be sure that the drain hose is located at thelowest side of the bundle. Locating at the upper sidecan cause drain pan to overflow inside the unit.

3. Tape the tubing, drain hose and the connectingcable. Be sure that the drain hose is located at thelowest side of the bundle. Locating at the upper sidecan cause drain pan to overflow inside the unit.

: If the drain hose is routed inside the room,insulate the hose with an insulation materi-al* so that dripping from "sweating"(conden-sation) will not damage furniture or floors.*Foamed polyethylene or equivalent is rec-ommended.

4. Indoor unit installation

Hook the indoor unit onto the upper portion of theinstallation plate.(Engage the three hooks of therear top and rear lower of the indoor unit with theupper edge and lower edge of the installationplate.) Ensure that the hooks are properly seatedon the installation plate by moving it left and right.

NOTICE

5. Connecting the pipings to the indoor unit and drainhose to drain pipe.

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

Tighten the flare nut with a wrench.

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

Connecting cable

Loop

Gas sidepiping

Liquid sidepipingDrain hose

Installationplate

Three upperhooks

Installation plate

Indoor unit

Three lowerhooks

Setting line

Indoor unit tubing Flare nut Pipings

Connection pipe

Flare nut

Indoor unit tubing

Torque wrench

Spanner (fixed)

Vinyl tape(narrow)Adhesive

Drain pipe

Indoor unit drain hose

Pipe Size[Torque]Capacity(Btu/h) GAS LIQUID

30k, 32k 5/8"[6.6kg.m] 3/8"[4.2kg.m]

36k, 38k 3/4"[6.6kg.m] 3/8"[4.2kg.m]


Installation

6. Wrap the insulation material around the connectingportion.

Overlap the connection pipe insulation material andthe indoor unit pipe insulation material. Bind themtogether with vinyl tape so that there is no gap.

Wrap the area which accommodates the rear pip-ing housing section with vinyl tape.

Bundle the piping and drain hose together bywrapping them with vinyl tape over the range with-in which they fit into the rear piping housing sec-tion.

1. Route the indoor tubing and the drain hose to therequired piping hole position.

2. Insert the piping, drain hose and the connectingcable into the piping hole.

3. 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 easyconnection later.

4. Tape the drain hose and the connecting cable.

• Connecting cable

Plastic bands Insulation material

Drain hose

Drain pipe

Connecting cable

Vinyl tape(narrow)

Connectionpipe

Connecting cable

Vinyl tape(wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe


Drain hose

Pipe

Vinyl tape(wide)

For right rear piping

Service Manual 21

Installation

5. Indoor unit installation

Hook the indoor unit onto the upper portion of theinstallation plate.(Engage the three hooks of therear top and rear lower of the indoor unit with theupper edge and lower edge of the installationplate.) Ensure that the hooks are properly seatedon the installation plate by moving it left and right.

6. Connecting the pipings to the indoor unit and thedrain hose to drain pipe.

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

Tighten the flare nut with a wrench.

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

7. Wrap the insulation material around the connectingportion.

Overlap the connection pipe heat insulation and theindoor unit pipe heat insulation material. Bind themtogether with vinyl tape so that there is no gap.

Wrap the area which accommodates the rearpiping housing section with vinyl tape.

Installationplate

Three upperhooks

Installation plate

Indoor unit

Three lowerhooks

Setting line

Vinyl tapeAdhesive

Drain hose

Indoor unit drain hose

(narrow)

Plastic bands Insulation material

Vinyl tape(narrow)

Connectionpipe

Connecting cable

Indoor unit piping

Pipe

Vinyl tape(wide)


Indoor unit tubing Flare nut Pipings

Torque wrench

Indoor unit tubing

Spanner (fixed)

Connection pipe

Flare nut

30k 5/8"[6.6kg.m] 3/8"[4.2kg.m]

36k 3/4"[6.6kg.m] 3/8"[4.2kg.m]



Installation

Bundle the piping and drain hose together bywrapping them with cloth tape over the rangewithin which they fit into the rear piping housingsection.

8. Reroute the pipings and the drain hose across theback of the chassis.

9. Reinstall the parts to the original position.

Refix the lower panel to the original position.

Connect display conductor.

Refix the front right side panel to the originalposition with the two screws.

Drain hoseVinyl tape(narrow)

Pipe

Wrap with vinyl tape(wide) Lower panel

Main PCB

Piping forpassage throughpiping hole

Service Manual 23

Installation

3) Connection of the drain hose The drain hose can be connected at two different

positions. Use the most convenient position and, ifnecessary, exchange the position of the drainpan, rubber cap and the drain hose.

Drain pan

Rubber cap

Drain hose

Exchange if necessary

Remove the drain hose.

Securely insert both the rubber plug and drainhose into the drain outlets.Be sure the rubber the cap is securely fastenedso that there is no leakage.

4) Connection of piping-Outdoor

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

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

When tightening the flare nut with torque wrench,ensure the direction for tightening follows thearrow on the wrench.

1

2

3

4

Outdoor unit Gas side piping(Bigger diameter)

Liquid sidepiping(Smallerdiameter)

Torque wrench

Gas side piping(Bigger diameter)

Liquid side piping(Smaller diameter)

Torque wrench

30k, 32k 5/8"[6.6kg.m] 3/8"[4.2kg.m]

36k, 38k 3/4"[6.6kg.m] 3/8"[4.2kg.m]


30k

36k


Installation

Connecting the cable between indoor unit and outdoor unit

1) Connect the cable to the Indoor unit. Connect the cable to the indoor unit by connect-

ing the wires to the terminals on the controlboard individually according to the outdoor unitconnection.(Ensure that the color of the wires of theoutdoor unit and the terminal No. are the same asthose of the indoor unit.)

REDBLUEBROWN

4(N)Terminals on the indoor unit 3(L) 5

4(N)Terminals on the outdoor unit

Color of Wires

POWER INPUT

Color of Wires

3(L)2(N)1(L) 5

G/Y

REDBLUEBROWNG/Y

The power cord connected to the outdoor unit should be complied with the followingspecifications (Rubber insulation, type H05RN-F approved by HAR or SAA).

The connecting cable connected to the indoorand outdoor unit should be complied with thefollowing specifications (Rubber insulation, typeH07RN-F approved by HAR or SAA).

CAUTION

8.5m

m

20mm

GN/YL

NORMALCROSS-SECTIONALAREA 2.5mm2

8.5m

m20mm

GN/YL


20mm

GN/YL


7.5m

m

30k, 32k

36k, 38k

Air Conditioner

Main power source

Circuit BreakerUse a circuit breakeror time delay fuse.

CAUTION: If a power plug isnot to be used, provide a circuitbreaker between power sourceand the unit as shown below.

Service Manual 25

Installation

2) Connect the cable to the outdoor unit

1. Remove the control cover from the unit by loosen-ing the screw.Connect the wires to the terminals on the controlboard individually.

2. Secure the cable onto the control board with thecord clamp.

3. Refix the control cover to the original position withthe screw.

4. Use a recognized circuit breaker 30A (30k, 32k),35A (36k, 38k) between the power source and theunit. A disconnecting device to adequately discon-nect all supply lines must be fitted.

Main terminal board

Control terminal board

Cover control

Terminal block

Over 5mm

Cover control

Connecting cable

The powerconnecting cable

CAUTION: 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 methodof 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 fromvibrations to which the unit is subjected during the course of transportation. Check them and makesure that they are all 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 24)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 nor-mal function of the overload.

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

Outdoor Unit

36K, 38K

30K, 32K


Installation

1) Checking the drainage1. Remove the right side panel.

2. Remove the lower panel by the arrow.

3. Remove the left side panel.(Remove the two screws.)

4. To check the drainage.

Pour a glass of water on the drain pan.

Ensure the water flows through the drain hose ofthe indoor unit without any leakage and goes outthe drain exit.

5. Drain piping

The drain hose should point downward for easydrain flow.

Do not make drain piping.

Right side panel

Downward slope

Do not raise Accumulateddrain water

Tip of drain hose dipped in water

Air

WavingWaterleakage

Waterleakage Ditch

Less than 50mm gap

Waterleakage

Lower panel

Left side panel

Service Manual 27

Installation

2) Form the piping1. Form the piping by wrapping the connecting por-

tion of the indoor unit with insulation material andsecure 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 abovethe ground. Secure the drain hose appropriately.

2. In cases where the outdoor unit is installed belowthe indoor unit perform the following.

Tape the piping, drain hose and connecting cablefrom down to up.

Secure the tapped piping along the exterior wallusing saddle or equivalent.

3. In cases where the Outdoor unit is installed abovethe Indoor unit perform the following.

Tape the piping and connecting cable from downto up.

Secure the taped piping along the exterior wall.Form a trap to prevent water entering the room.

Fix the piping onto the wall by saddle or equiva-lent.

Taping

Drainhose

Pipings

Connectingcable

Trap is required to prevent waterfrom entering into electrical parts.

Seal small openingsaround pipings with agum type sealer.

Trap is required to prevent water from entering into electrical parts.

Seal a small openingaround the pipingswith gum type sealer.

Drain hose

Taping

Pipings

Connectingcable

Power supplycord

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

Trap

Trap

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

Trap

Trap

30k, 32k

30k, 32k

36k, 38k

36k, 38k


AIR PURGING

Installation

1) Air purgingAir and moisture remaining in the refrigerant systemhave undesirable 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 capillary tubing. Water may lead to corrosion of parts in the refrig-

eration system.Therefore, the indoor unit and tubing between theindoor and outdoor unit must be leak tested andevacuated to remove any noncondensables andmoisture from the system.

2) Air purging with vacuum pump1. Preparation

Check that each tube(both liquid and gas sidetubes) between the indoor and outdoor units havebeen properly connected and all wiring for the testrun has been completed. Remove the servicevalve caps from both the gas and the liquid sideon the outdoor unit. Note that both the liquid andthe gas side service valves on the outdoor unitare kept closed at this stage.

2. Leak test Connect the manifold valve(with pressure gauges)

and dry nitrogen gas cylinder to this service portwith charge hoses.

Pressurize the system to no more than 150 P.S.I.G.with dry nitrogen gas and close the cylinder valvewhen the gauge reading reached 150 P.S.I.G.Next, test for leaks with liquid soap.

Do a leak test of all joints of the tubing(both indoorand outdoor) and both gas and liquid side servicevalves.Bubbles indicate a leak. Be sure to wipe off thesoap with a clean cloth.

After the system is found to be free of leaks,relieve the nitrogen pressure by loosening thecharge hose connector at the nitrogen cylinder.When the system pressure is reduced to normal,disconnect the hose from the cylinder.

CAUTION: Be sure to use a manifold valve forair purging. If it is not available, use a stop valve forthis purpose. The "Hi" knob of the manifold valvemust always be kept close.

CAUTION:To avoid nitrogen entering therefrigerant system in a liquid state, the top of thecylinder must be higher than its bottom when youpressurize the system. Usually, the cylinder isused in a vertical standing position.

Lo Hi

Indoor unit Indoor unit

Outdoor unit Outdoor unit

Manifold valve

Charge hose

Nitrogen gascylinder(in verticalstanding position)

Pressure gauge

30k, 32k 36k, 38k

Service Manual 29

Installation

3. Evacuation

Connect the charge hose end described in thepreceding steps to the vacuum pump to evacuatethe tubing and indoor unit.Confirm the "Lo" knob of the manifold valve isopen. Then, run the vacuum pump.The operation time for evacuation varies with tubinglength and capacity of the pump. The followingtable shows the time required for evacuation.

When the desired vacuum is reached, close the"Lo" knob of the manifold valve and stop thevacuum pump.

4. Finishing the job

With a service valve wrench, turn the valve stemof liquid side valve counter-clockwise to fullyopen the valve.

Turn the valve stem of gas side valve counter-clockwise to fully open the valve.

Loosen the charge hose connected to the gasside service port slightly to release the pressure,then remove the hose.

Replace the flare nut and its bonnet on the gasside service port and fasten the flare nut securelywith an adjustable wrench. This process is veryimportant to prevent leakage from the system.

Replace the valve caps at both gas and liquidside service valves 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 gas side and liquid side valves.(2) Remove the service-port cap from the gas side valve.(3) To open the gas side 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 points ofthe piping.

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

Soap water methodGas side

Liquid side

Cap

Hexagonal wrench

3-way valve(Open)

3-way valve(Close)

Required time for evacuationwhen 30 gal/h vacuum pump is used

10 min. or more 15 min. or more

If tubing length is lessthan 10m (33 ft).

If tubing length is longerthan 10m (33 ft).

Indoor unit

Outdoor unit

Lo Hi

Manifold valve

Vacuum pump

Pressure gauge

Open Close

Indoor unit

Outdoor unit

36k, 38k30k, 32k


1. Check that all tubing and wiring have been prop-erly connected.

2. Check that the gas and liquid side service valvesare fully open.

1. Prepare remote control

Remove the battery coverby pulling it according to thearrow direction.Insert new batteries makingsure that the (+) and (–) ofbattery are installed correctly.Reattach the cover bypushing it back into position.

• Use 2 AAA(1.5volt) batteries. Do not use recharge-able batteries.

• Remove the batteries from the remote control if thesystem is not going to be used for a long time.

2. Settlement of outdoor unit

Anchor the outdoor unit with a bolt andnut(ø10mm) tightly and horizontally on a concreteor rigid mount.

When installing on the wall, roof or rooftop, anchorthe mounting base securely with a nail or wireassuming the influence of wind and earthquake.

In the case when the vibration of the unit is con-veyed to the hose, secure the unit with ananti-vibration rubber.

NOTICE

3. Evaluation of the performance

Operate unit for 15~20 minutes, then check the sys-tem refrigerant charge:

1. Measure the pressure of the gas side servicevalve.

2. Measure the temperature of the intake and dis-charge of air.

: If the actual pressure are higher than shown,the system is most likely over-charged, andcharge should be removed. If the actualpressure are lower than shown, the systemis most likely undercharged, and chargeshould be added.The air conditioner is now ready for use.

NOTICE

Bolt

Tubing connection

This is performed when the unit is to be relocatedor the refrigerant circuit is serviced.Pump Down means collecting all refrigerant in the out-door unit without loss in refrigerant gas.

CAUTION:Be sure to perform Pump Down procedure with theunit cooling 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

air from 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 cool-

ing operation.5. When the low-pressure gauge reading becomes 1 to

0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the gasside valve stem and then quickly turn off the unit. Atthat time, Pump Down has been completed and allrefrigerant gas will have been collected in the outdoorunit.

PUMP DOWN

3. Ensure the difference between the intake temper-ature and the discharge is more than 8°C(Cooling) or reversely (Heating).

4. For reference; the gas side pressure of optimumcondition is as below.(Cooling)

Dischargetemperature

Discharge air

Intake temperature

TEST RUNNING

Outside ambient TEMP The pressure of the gas side service valve

35°C(95°F) 4~5kg/cm2 G(56.8~71.0 P.S.I.G.)

Installation

Service Manual 31

• DISPLAY1) C/O Model (high quality LCD remote controller supplied)

Operation Indicator• On while in appliance operation, off while in appliance pause

Timer Indicator• On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled.

Comp. Running Indicator• While in appliance operation, on while in outdoor unit compressor running, off while in compressor off

Plasma Indicator• On while in plasma mode, off while plasma mode is canceled.

Auto restart Indicator• On while auto restart mode, off while auto restart mode is canceled.

Auto restart• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate

procedures automatically to the previous operating conditions.If your want to use this operation, press the Auto Restart Button.

Power(Forced Operation)• Operation starts, when this button is pressed and stops when you press the button again.

2) H/P Model (high quality LCD remote controller supplied)

Operation Indicator• On while in appliance operation, off while in appliance pause

Timer Indicator• On while in timer mode (on/off) and in sleep timer mode, off when timer mode is completed or canceled

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

Plasma Indicator• On while in plasma mode, off while plasma mode is canceled.

Auto restart Indicator• On while auto restart mode, off while auto restart mode is canceled.

Auto restart• In case the power comes on again after a power failure, Auto Restarting Operation is the function to operate

procedures automatically to the previous operating conditions.If your want to use this operation, press the Auto Restart Button.

Power(Forced Operation)• Operation starts, when this button is pressed and stops when you press the button again.

Cooling Mode Operation• When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop.

• When it reaches 0.5°C above the setting temp, they start to operate again.

Compressor ON Temp=> Setting Temp+0.5°C

Compressor OFF Temp => Setting Temp-0.5°C

• While in compressor running, operating with the airflow speed set by the remote controller. While in compressornot running, operating with the low airflow speed regardless of the setting.

MAIN UNIT FUNCTION

Operation

Operation


Operation

Healthy Dehumidification Mode

• When the dehumidification operation input by the remote controller is received, the intake air temperature isdetected and the setting temp is automatically set according to the intake air temperature.

26°C ≤ Intake Air Temp => 25°C

24°C ≤ Intake Air Temp < 26°C => Intake Air Temp-1°C

18°C ≤ Intake Air Temp < 24°C => Intake Air Temp-0.5°C

Intake Air Temp < 18°C => 18°C

• While in compressor off, the indoor fan repeats low airflow speed and pause.

• While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidificationoperation and 4-min compressor off repeat

Compressor ON Temp. => Setting Temp+0.5°C

Compressor OFF Temp. => Setting Temp-0.5°C

• In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.

Heating Mode Operation

• When the intake air temp reaches +3°Cabove the setting temp, the compressor is turned off. When below thesetting temp, the compressor is turned on.

Compressor ON Temp. => Setting Temp.

Compressor OFF Temp. => Setting Temp.+3°C

• While in compressor on, the indoor fan is off when the indoor pipe temp. is below 26®¨C , when above 28°C , itoperates with the low or setting airflow speed (while in sleep mode, with the medium airflow speed).

• While in compressor off, the indoor fan is off when the indoor pipe temp is below 33°C , when above 35°C , itoperates with the low airflow speed.

• If overloaded while in heating mode operation, in order to prevent the compressor from OLP operation, the out-door fan is turned on/off according to the indoor pipe temp.

• While in defrost control, both of the indoor and outdoor fans are turned off.

Defrost Control

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

• Defrost control is available 30 minutes later since heating mode operation started, and it will not polong over 6minutes.

• Deicing starts only when the outdoor pipe temperature falls below -6°C after 30 minutes passed from starting ofheating operating and more than 10 minutes operation of compressor.

• Deicing ends after 6 minutes passed from starting of deice operation or when the outdoor pipe temperature risesover 12°C even if before 6 minutes.

Fuzzy Operation (C/O Model)

• According to the temperature set by Fuzzy rule, when the intake air temp is 0.5°C or more below the settingtemp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.

Compressor ON Temp => Setting Temp+0.5°C

Compressor OFF Temp => Setting Temp+0.5°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.

Service Manual 33

Operation


24°C ≤ Intake Air Temp<26°C => Intake Air Temp+1°C

22°C ≤ Intake Air Temp<24°C => Intake Air Temp+0.5°C

18°C ≤ Intake Air Temp<22°C => Intake Air Temp

Intake Air Temp<18°C => 18°C

• When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, theFuzzy key value and the intake air temperature at that time are compared to select the setting temperatureautomatically according to the Fuzzy rule.

• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper-ature

Fuzzy Operation (H/P Model)

• When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed sincethe operation off, the operation mode is selected.

• When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and onlythe indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake airtemp at that moment as follows.

24°C ≤ Inatake Air Temp => Fuzzy Operation for Cooling

21°C ≤ Inatake Air Temp<24°C => Fuzzy Operation for Dehumidification

Inatake Air Temp<21°C => Fuzzy Operation for Heating

• If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1) Fuzzy Operation for Cooling

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more belowthe setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor isturned on.










• While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temperature.

2) Fuzzy Operation for Dehumidification

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more belowthe setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor isturned on.


Operation










• While in Fuzzy operation, the airflow speed of the indoor fan repeats the low airflow speed or pause as indehumidification operation.

3) Fuzzy Operation for Heating

• According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3°C or more abovethe setting temp, the compressor is turned off. When below the setting temp, the compressor is turned on.

Compressor ON Temp => Setting TempCompressor OFF Temp => Setting Temp + 3°C

• At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to theintake air temp at that time.20°C ≤ Intake Air Temp => Intake Air Temp + 0.5°CIntake Air Temp < 20°C => 20°C


• While in Fuzzy operation, the airflow speed of the indoor fan is set to the high or the medium according to theintake air temperature and the setting temperature.

Airflow Speed Selection

• The airflow speed of the indoor fan is set to high, medium, low, or chaos by the input of the airflow speedselection key on the remote controller.

On-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance starts to operate.

• The timer LED is on when the on-timer is input. It is off when the time set by the timer is reached.

• If the appliance is operating at the time set by the timer, the operation continues.

Off-Timer Operation

• When the set time is reached after the time is input by the remote controller, the appliance stops operating.

• The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached.

• If the appliance is on pause at the time set by the timer, the pause continues.

Service Manual 35

Operation

Off-Timer <=> On-Timer Operation

• When the set time is reached after the on/off time is input by the remote controller, the on/off-timer operation iscarried out according to the set time.

Sleep Timer Operation

• When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote controller while inappliance operation, the operation of the appliance stops.

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

• While in cooling mode operation, 30 min later since the start of the sleep timer, the setting temperatureincreases by 1°C After another 30 min elapse, it increases by 1°C again.

• When the sleep timer mode is input while in cooling cycle mode, the airflow speed of the indoor fan is set tothe low.

• When the sleep timer mode is input while in heating cycle mode, the airflow speed of the indoor fan is set tothe medium.

Chaos Swing Mode

• By the Chaos Swing key input, the vane automatically operates with the Chaos Swing or they are fixed to thedesired direction.

Chaos Natural Wind Mode

• When the Chaos Natural Wind mode is selected and then operated, the high, medium, or low speed of the air-flow mode is operated for 2~15 sec randomly by the Chaos Simulation.”

Jet Cool Mode Operation (C/O Model)

• If the Jet Cool key is input at any operation mode while in appliance operation, the Jet Cool mode operates.

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and thenoperated in order that the air outflow could reach further.

Jet Cool Mode Operation (H/P Model)

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

• In the Jet Cool mode, the indoor fan is operated at super-high speed for 30 min at cooling mode operation.

• In the Jet Cool mode operation, the room temperature is controlled to the setting temperature, 18°C

• When the sleep timer mode is input while in the Jet Cool mode operation, the Jet Cool mode has the priority.

• When the Jet Cool key is input, the upper/lower vanes are reset to those of the initial cooling mode and thenoperated in order that the air outflow could reach further.

Auto Restarting Operation

• When the power is restored 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

• 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 (unit of hour)

Forced Operation ( C/O Model)

• To operate the appliance by force in case that the remote controller is lost, the forced operation button is onthe main unit of the appliance to operate the appliance in the standard conditions.

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• The forced operation is carried out in cooling mode with the setting temperature 22°C and the high speed ofairflow.

Forced Operation ( H/P Model)

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

• Press the forced operation button, the forced operation is carried out.

• Press the forced operation button once again to stop operation.

• In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then the operationcondition is set according to the intake air temperature as follows.

24°C ≤ Intake Air Temp => Cooling Mode Operation, 22°C, High Speed

21°C ≤ Intake Air Temp < 24°C => Dehumidification Operation, 23°C, High Speed

Intake Air Temp < 21°C => Heating Mode Operation, 24°C, High Speed

Test Operation Control

• To check the condition of the installation when installing the appliance, the appliance is operated at coolingmode, high speed of airflow, compressor-on for 18 min without controlling the room temperature.

• After supplying power to the main body, keep pressing the forced operation button for about 3 seconds.

• While in test operation, a key can be input by the remote controller.When a key (operation start/stop, operation mode selection, airflow speed selection, temperature control, JetCool) is input by the remote controller, the test operation is canceled and the appliance is operated accordingto the setting by the remote controller.

Protection of the evaporator pipe from frosting

• In the temperrature of the indoor pipe is below 0°C after 7 minutes from starting the compressor, the compres-sor and outdoor fan are stopped, and 3 minutes delay of operating of the compressor, when the temperature ofthe indoor pipe is over 7°C, the compressor and the outdoor fan are reoperated.

• Outdoor fan motor stops when indoor pipe temperature is blow 3°C and restarts at the pipe temperature above6°C or after 90 seconds, if the pipe temperature does not rise to 6°C, outdoor fan motor runs continuously ateven below 3°C.

Buzzer Sounding Operation

• When the appliance-operation key is input by the remote controller, the short “beep-beep-” sounds.

• When the appliance-pause key is input by the remote controller, the long “beep—” sounds.

Service Manual 37

Operation

Air Cleaner Operation

• When an air cleaner function is selected during Air Conditioner operation- Plasma air cleaner function will be operated while in any operation mode with selecting the function.- The function is to be stopped while it is operating with selecting the function.

• When an air cleaner function is selected during operation off- The function will be only operated.

• When inlet grille of air conditioner is opened during plasma operation, High Voltage Generator(H.V.B) is to bestopped. When inlet grille of air conditioner is closed during plasma operation, High Voltage Generator(H.V.B)will be operated again.


Display Function

Operation

Self-diagnosis Function

Signal ReceptorReceives the signals from the remote control.(Signal receiving sound: two short beeps or one long beep.)

Operation Indication Lamps

On/Off : Lights up during the system operation.

Timer or Sleep Mode : Lights up during Timer operation or Sleep mode.

Defrost Mode : Lights up during Defrost Mode or HotStart operation. (Heat pump model only)

Outdoor unit operation : Lights up during outdoor unit operation. (Cooling model only)

Plasma Mode : Lights up during plasma-purification operation.(option)

Auto Restart Mode : Lights up during if Restart Button is pressed.

Auto Restart Button : In failure of electric power, if the button is pressed theunit runs as previoussetting operation when power returns.

Forced Operation Button : Operation starts, when this button is pressed and stops when you press thebutton again.

3sec 3sec 3sec

(once)

3sec 3sec

(twice)

3sec

(5times)

ErrorCode

1

2

5

Error LED(Indoor body operation LED)

Error contents

• Indoor room temperaturethermistor open/short

• Indoor pipe temperaturethermistor open/short.

• Outdoor pipe temperaturethermistor open/short.

• Poor communication.

• Indoor TH assy check

• Outdoor TH assy check

• Communication line/circuitcheck

SVC check point

Service Manual 39

Operation

Name and Function-Remote Control

The remote control transmits the signals to the system.

1. START/STOP BUTTONOperation starts when this button is pressed and stopswhen 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 steps low, medium, highand CHAOS.

5. JET COOLUsed to start or stop the speed cooling. (Speed coolingoperates super high fan speed in cooling mode.)

6. CHAOS SWING BUTTONUsed to stop or start louver movement and set the desiredup/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-purification function.

14. HORIZONTAL AIRFLOW DIRECTION CONTROLBUTTON (NOT ON ALL MODELS)Used to set the desired horizontal airflow direction.

15. RESET BUTTONUsed prior to resetting time or after replacing batteries.

16. 2nd F ButtonUsed prior to using modes printed in blue at the bottomof buttons.

17. AUTO CLEANUsed to set Auto Clean mode.

ON OFF

CANCEL

AUTO CLEANSET

1

3

5

4

9

10

171214

16

72

813

15

11

6

Cooling Operation

Auto Operation

Healthy Dehumidification Operation

Flip-up door(opened)

Heating Operation

Signal transmitter

• Cooling Model( ), Heat Pump Model( )

Remote Control

Operation Mode


DisassemblyIndoor Unit

Disassembly

Warning :Disconnect the unit from power supply before makingany checks.Be sure the power switch is set to “OFF”.

1. To remove the Grille from the Chassis.

Remove the 2 screws of right side panel.

Remove the right side panel by the arrow.

The connector can be disconnected by pulling itwhile pressing the connector's hook.

Remove the 1 screw for fixing low panel.

Remove the lower panel by the arrow.

Take care not to scratch the wall and mat todrop.

Remove the left side panel.(Remove the 2 screws.)

Right side panel

Main PCB

Lower panel

Left side panel

Lower panel

Service Manual 41

Disassembly

Remove the grille from the chassis.

• Remove the 4 securing screws.(30K, 32K)• Remove the 5 securing screws.(36K, 38K)• To remove the Grille, pull the lower left and right side

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

Separate the black lead wire from the white connectorin case of plasma model.

2. To remove the sensor, housing connector, earthconductor and step motor conductor with sensorholder, Motor, Evaporator and P.C.B.

PowerConductor

Step MotorConductor

MotorConductor

SensorConductor

EarthConductor

BLACK WHITE

30k

36k

30k 36k


Disassembly

3. To remove the Control Box.• Remove the 5 securing screws.• Pull the control box out from the chassis

carefully.

4. To remove the Discharge Grille.• Remove the 3 securing screw.• Pressing the right side of the discharge grille

downward slightly, unhook the discharge grille.• Pull the discharge grille out from the chassis

carefully.

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

left 2EA, at the right 1EA).• Remove 2 screw securing the evaporator clamp.

• 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.

Screw

Screw

Screw

Screw

Service Manual 43

Disassembly

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

the fan motor (do not remove).

• Loosen the screw securing the mount motor.

• Separate the fan motor from the cross-flow fan.• Take care not to drop the motor.

7. To remove the Cross-Flow Fan• Loosen the screw securing the holder bearing.• Lift up the cross-flow fan.

Screw

Fan motor

Screw

Screw

Fan motor

Mount motor

Holder bearing


Schematic Diagram

Schematic Diagram

Schematic Diagram

Heat Pump/Cooling Only Series(Indoor Unit)

Service Manual 45

Schematic Diagram

Heat Pump Series (Outdoor Unit) Model: 30K Series

55

44

33

22

11


Schematic Diagram

Model: 36K, 38K Series

Service Manual 47

Schematic Diagram

Cooling Only Series (Outdoor Unit) Model: 30K Series

55

44

33

22

11


Schematic Diagram

Model: 36K, 38K Series

Service Manual 49

Schematic Diagram

Wiring Diagram

• Indoor Unit

3854A20065A

MOTOR

SH-CAPA.

YL

PILLARTERMINAL

AUTO RESTARTFORCED OPERATION

CN-DISP

CN

-L/R

CN

-U/D

CN

-TH

THERMISTOR

STEPMOTOR

(UP/DOWN)

STEPMOTOR

(L/R)

H.V.B ASM

LIMITS S/W

Negative ion

OPTION

STEPMOTOR

(L/R)CN

-L/R

DISPLAY PCB ASM

INDOOR WIRING DIAGRAM

TO OUTDOOR UNIT

BL

3(L) 4(N) 5

BR

GN

/YL

BL

RD

RD

BR

GN

/YL

BR

FUSEAC250V/T2A

TRIACOR

BK

ZNR

CN-POWER

CN-MOTOR


Schematic Diagram

• Outdoor Unit

LS-C302MMM0LS-C306MMB0LS-C306MMM0

LS-C362NMD0LS-C362NMM0LS-C382NMB0LS-C382NMM0

LS-H306MMM0 LS-H362NMD0LS-H362NMM0LS-H382NMB0LS-H382NMM0

OUTDOOR WIRING DIAGRAM 3854A20051G

5(COMM)3(L) 4(N)

BL

RD

BR

R

SCOMP

RUNNINGCAPACITOR

BL

BL

BR

BL

1(L) 2(N) TERMINAL BLOCK

BL

12

BK

BR

CN-P2(N)

CN-COMP2

CN-FANOR

ORFAN

OUTDOOR PCBCAPACITOR YL

CN-P1(L)

CN-COMM

RD

BK

TERMINAL BLOCK1

TO INDOOR UNITPOWER INPUT

FUS

E(5

A)

FUS

E(5

A)

1026

48 POWERRELAY

BR

C

53(L) 4(N)

BK

RD

WH

R

SCOMP

RUNNINGCAPACITOR

BL

BLBR

BRBK

BK

BK

BK

WH


12

CN-P2(N)

CN-COMP2

CN-FAN

OR

OROR

FAN1OUTDOOR PCB

MAGNECTICCONTACTOR

CAPACITOR

YLYL

CN-P1(L)

CN-COMM

RD

BK BK

BK

BK

BKBK

TERMINAL BLOCK1


FUS

E(5

A)

FUS

E(5

A)

T2 T1

L2 L1

A2

A1

BRC

OUTDOOR WIRING DIAGRAM 3854A20051J

YLFAN2

CAPACITOR1

CAPACITOR2

OR

YL

OR

OUTDOOR WIRING DIAGRAM 3854A20051F

BL

BK

BK

BLBL

BR

YL

ORFAN

OR

CAPACITOR

REVERSINGVALVE

BK

BK

SW

ITC

HH

IGH

PR

ES

SU

RE

21

BK

OUTDOOR PCB

RUNNING

BL

S

CCOMP

BR

RD

R

CN-CN-

CN-COMP2

CN-

BR

RD

P2(N) P1(L) COMM

RELAYPOWER

06 2

8 14

CAPACITOR

5(COMM)4(N) TERMINAL BLOCK1(L) 2(N)

FU

SE

(5A

)

FU

SE

(5A

)

3(L)

POWER INPUT TO INDOOR UNIT

BR

TERMINAL BLOCK1

CN-4WAY

CN-FAN

OUTDOOR WIRING DIAGRAM 3854A20051L

53(L) 4(N)

BK

RD

WH

R

SCOMP

RUNNINGCAPACITOR

BL

BLBR

BRBK

BK

BK

BK

WH


12

CN-P2(N)

CN-COMP2

CN-FAN

CN-4WAY

CN-THTHERMISTOR

OR

OR

OROR

FAN1

OUTDOOR PCB

MAGNECTICCONTACTOR

CAPACITOR

YLYL

CN-P1(L)

CN-COMM

RD

BK BK

BK

BK

BK

BK

BK

BKBK

TERMINAL BLOCK1


FUS

E(5

A)

FUS

E(5

A)

T2 T1

L2 L1

A2

A1

BRC

YLFAN2

CAPACITOR1

CAPACITOR2

OR

YL

OR

REVERSINGVALVE

HIGH PRESSSWITCH

Service Manual 51

Schematic Diagram

Electronic Control Device

INDOOR UNIT P.W.B. ASSEMBLYModels: LS-C306MMB0/LS-C362NMD0/LS-H362NMD0

Models: LS-C302MMM0/LS-C306MMM0/LS-C362NMM0/LS-H306MMM0/LS-H362NMM0

Schematic Diagram


Models: LS-C382NMB0/LS-C382NMM0/LS-H382NMB0/LS-H382NMM0

Service Manual 53

Schematic Diagram

OUTDOOR UNIT P.W.B. ASSEMBLY

MODEL SOFT-STARTER

AS-C306 Series X

AS-H306 Series X

AS-C366 Series X

AS-H366 Series X


Schematic Diagram

DISPLAY P.W.B. ASM

Service Manual 55

Troubleshooting Guide


INDOOR UNIT OUTDOOR UNIT

INDOOR UNIT OUTDOOR UNIT

HEATEXCHANGE(EVAPORATOR)

HEATEXCHANGE(EVAPORATOR)

HEATEXCHANGE(CONDENSER)

HEATEXCHANGE(CONDENSER)

COMPRESSOR

COMPRESSOR

ACCUMULATOR

GAS SIDE

GAS SIDE

3-WAY VALVE

LIQUID SIDE

LIQUID SIDE

3-WAY VALVE

CAPILLARY TUBE

CAPILLARY TUBE

CHECK VALVE(Heating Model only)

COOLING

HEATING

REVERSINGVALVE(Heating Model Only)

(1) Cooling Only Models

Refrigeration Cycle Diagram

(2) Cooling & Heating Models



Pipe Length and the Elevation

* Capicity is based on standard length and maximum allowance length is the basis ofreliability.

* Oil trap should be installed per 5~7 meters.

CAUTION

Outdoor unit

Indoor unit

A

B

AOil trap

Outdoor unit

Indoor unitB

In case more than 5m

30k5/8" 3/8" 7.5 15 30 30

(50Hz, 60Hz)

36k3/4" 3/8" 7.5 20 30 50

(50Hz, 60Hz)

Pipe SizeCapacity(Btu/h)

GAS LIQUID

AdditionalRefrigerant

(g/m)

Max.LengthA (m)

Max.Elevation

B (m)

StandardLength

(m)

Service Manual 57


3-way Valve

• Procedure

(1) Confirm that both liquid side and gas sidevalves are 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 Gas side valve.– Connect the charge hose 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 liquid side valve to the closed posi-tion.

(6) Operate the air conditioner in cooling modeand stop it when the gauge indicates1kg/cm2g.

(7) Immediately set the Gas side valve to theclosed position.– Do this quickly so that the gauge ends up indi-

cating 3 to 5kg/cm2g.

(8) Disconnect the charge set, and mount theLiquid side and Gas side valve’s stem nutsand the service 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

Open3-Wayvalve

3-Wayvalve

CLOSE

1. Pump down

CAUTION: Do not use the existingcharge set for R-22.

It is necessary to use new charge set forR-410A. The pressure of R-410A is 1.6 timeshigher than that of R-22. Thus, the high pressureside gauge of charge set should be used higherpressure gauge of 50kg/cm2 range.



1) 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 air during AirPurging.

Lo

Closed

OPEN

Closed

Gas cylinder

R407C

Outdoor unit


Gas side

CLOSE

3-Wayvalve

3-Wayvalve

Service Manual 59


2) Balance refrigerant of the 3-way valve(Gas leakage)

• Procedure

(1) Confirm that both the liquid side and gas sidevalves are 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



2. 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

CAUTION:

Use vacuum pump equipped with check valueapplied to be prevented from flowing back-ward.

Service Manual 61


3. 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


CAUTION:This unit is charged with R-410A.Pay attention not to charge R-22.

\

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)



Additional gas charging(Gas leakage)• When refrigerant is insufficient by leakage, recharge the unit with the refrigerant up to normal operating suc-

tion pressure.• Use the graph or the equation below to get operating suction pressure according to indoor and outdoor tem-

perature.Suction pressure was measured at 3-way valve service port after operating the unit for 10 minutes.

The method of using graph- Find outdoor temperature.- Find indoor temperature onto the curve of outdoor temperature.

- Read suction pressure at the axis of ordinates.

The method of using equation-. Calculate suction pressure after putting indoor and outdoor temperature into the equation.

13(At operating the Unit for 10 minutes)

Suc

tion

Pre

ssur

e(K

g/cm

2 .g)

Out

door

Tem

p.(˚

C)

Indoor Temp. (˚C)

12

11

10

9

8

7

6

55 10 15 20 25 30 35 40

50˚C

40˚C

30˚C

20˚C

10˚C0˚C

P = 3 + 0.0123 x Tout1.5 + 0.8 x Tin0.5

Where, P : Suction Pressure(kg/cm2.g)Tout : Outdoor Temperature(˚C)Tin : Indoor Temperature(˚C)

Operating Suction Pressure(According to Indoor & Outdoor Temperature)

Service Manual 63


Cycle Troubleshooting Guide

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

Notice :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.

Notice :1. The suction pressure is usually 4.5~6.0 kg/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.

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



Electronic Parts

1. Product does not operate at all.(* Refer to Electronic Control Device drawing and Schematic diagram.)

Turn off Main Power

Turn on Main Power

Does "beeping" sound is made from the Indoor Unit?

Primarily, the operating condition of Micom is OK.Check the voltage of power(About AC 220V/AC240V, 50Hz)

• Main power's voltage• Voltage applied to the unit• Connecting method of Indoor/Outdoor connecting cable• Check PWB Ass'y

- Fuse- Pattern damage- Varistor(ZNR01J)

Check the connection housing for contacting

• Connector related to CN-POWER• Connector related to CN-MOTOR• Connector contacting of Outdoor Fan/Compressor• Display PWB Ass'y Check

Check each load(Indoor/Outdoor Fan Motor,Compressor, Stepping Motor) and contactingcondition of related connector

PCB Board Operation Check

Items

• Power Transformer(Outdoor unit)- Input Voltage- Output Voltage

• IC01D(7812) Output (Outdoor unit)

• IC02D(7805) Output (Outdoor unit)IC04D(7805) Output (Indoor unit)

• IC01A(KIA7036, Reset IC)OSC01B(8MHz) (Indoor unit)

• IC01A(KIA7036, Reset IC)OSC01B(4MHz) (Outdoor unit)

• Replace Trans

• Replace IC01D(Outdoor unit)

• Replace IC02D(Outdoor unit)IC04D(Indoor unit)

• Replace faulty parts

- About AC220V/240V±10% - Check the power voltage- About AC14±3V

• DC +12V

• DC +5V

• Voltage of Micom No. 2, (Indoor unit)(DC +4.5V over) and Soldering condition.No. 5 (Outdoor unit)

Content Remedy

NO YES

(After 10 seconds)

Service Manual 65


2. The product is not operate with the remote controller.

Turn on Main Power

While the compressor has been stopped, the compressor does notoperate owing to the delaying function for 3 minutes after stopped.

Caused by other parts except the remote controllerCause by the remote controller

When the mark( ) is displayed in LCD screen, replacebattery.

Check the contact of CN-DISP connector.

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 thelow speed by force.)

Check DISP PWB Ass'y- Voltage between CN DISP - : DC +5V

When the detect switch(double key) inside the remotecontroller door is fault, it is impossible to operatetemperature regulating( / ) and wind speed selecting.

Check the connecting circuit between the remote controllerMICOM (No. ) - R17(2Ω) - IR LED - Q1 - R16(2.2KΩ).

Check point

• Check the connecting circuit between PIN -Rø1L(1K) - Cø1L(680PF) - MICOM PIN

• Check Receiver Ass'y



3. Compressor/Outdoor Fan are unable to drive.

Turn on Main Power

Operate "Cooling Mode( )" by setting the desired temperature of the remote controller is lessthan one of the indoor temperature by 1°C at least.

When in Air Circulation Mode, Compressor/Outdoor Fan is stopped.

Check the sensor for indoor temperature is attached as close as to be effected by the tempera-ture of Heat Exchanger(EVA).

When the sensor circuit for indoor temperature and connector are in bad connection or are notengaged, Compressor/Outdoor Fan is stopped.

• Check the related circuit of R02H(12.1K), R04H(6.2K), Micom (No.3.4) (Indoor unit).• Check the related circuit of R04H (6.2K) Micom (No.3) (Output unit).• Check the indoor temperature sensor is disconnected or not(About 10kΩ / at 25°C).

Turn off Main Power

• Check the electrical wiring diagram of outdoor side.• Check the abnormal condition for the component of Compressor/Outdoor Fan Motor.• Check the "open" or "short" of conmecting wires between indoor and outdoor.

Check Relay(RY - COMP2) for driving compressor.(Outdoor unit)

• When the power(About AC220V/240V) is applied to the connecting wire terminal supporttransferred to compressor, PWB Ass'y is normal.

• Check the circuit related to the relay.

Check point COMP ON COMP OFF

Between Micom(No.15) and GND DC5V DC0V

Between Relay (G5N-1A) (No.1)DC12V DC0Vand (G5N-1A) (No.4)

Between CN-COMP2 AC 220~240V Below AC 10Vand CN-POWER 2(N)

Service Manual 67


Check the TRIAC high speed operation by Remocon.(The Indoor Fan Motor is connected)

Turn off Main power

Check the connection of CN-MOTOR

Check the Fan Motor

Check the Fuse(AC250V/T2A)

Turn ON Main Power

Check the related circuit of indoor Fan Motor.

• The pin NO 63 of Micom, and the part for driving TRIAC(the input andoutput signal of IC01M, PIN NO 2, 15)

• Check the pattern• Check the TRIAC

- TRIAC Open: Indoor Fan Motor never operate- TRIAC short: Indoor Fan Motor always operates in case of ON or OFF.

4. When indoor Fan does not operate.

The voltage of PIN NO 1(blue) and 3(yellow) of CN-MOTOR.

About AC 180V over About AC 50V over

TRIAC is not damaged TRIAC Check



6. When Heating does not operate

Operate “Heating Mode( )” by setting the desired temperature of theremote controller is higher than one of the indoor temperature by 2°Cat least.

In heating Mode, the indoor fan operates in case the pipe temperatureis higher than 28°C.

Turn ON Main Power

• Confirm that the Vertical Louver is normally geared with the shaft ofStepping Motor.

• If the regular torque is detected when rotating the Vertical Louver withhands Normal

• Check the connecting condition of CN-U/D Connector• Check the soldering condition(on PWB) of STEP(U/D) Connector

If there are no problems after above checks

• Confirm the assembly conditions that are catching and interfering partsin the rotation radial of the Vertical Louver

5. When Vertical Louver does not operate.

Check the operating circuit of the Vertical Louver

• Confirm that there is DC +12V between pin (RED) of CN-U/D andGND.

• Confirm that there is a soldering short at following terminals.- Between , , and of MICOM- Between , , and of IC01M- Between , , and of IC01M

58 59 60 61

Service Manual 69


Check the connector of intake and pipe sensor(thermistors)

• Check the related circuit of R02H(12.1K), R04H(6.2K), R03H(1.0K),Micom(No. 3, 4).

• Check the indoor room temperature is disconnected or not (about10KΩ/at 25°C).

• Check the indoor pipe temperature is disconnected or not (about5KΩ/at 25°C).

Check the DC voltage on the PWB ASS’Y

• The details of check are as followings

CHECK POINT

Between Micom(No.15) and GND

Between RY-COMP.(No.1) and (No.4)

BetweenCN-COMP2 andCN-POWER 2(N)

COMP. ON

DC5V

About DC12V

AC 220~240V

COMP. OFF

DC0V

DC0V

Below AC10V

CHECK POINT


Between RY-4WAY(No.1) and (No.4)

Between CN-4WAYand

CN-POWER 2(N)

COMP. ON

DC5V

About DC12V

AC 220~240V

COMP. OFF

DC0V

DC0V

Below AC10V

CHECK POINT


Between RY-FAN(No.1) and (No.4)

Between CN-FANand

CN-POWER 2(N)

COMP. ON

DC5V

About DC12V

AC 220~240V

COMP. OFF

DC0V

DC0V

Below AC10V

• Comp Relay.

• 4 way Relay

• Outdoor fan Relay

Turn off Main Power

• Check the electrical wiring diagram of outdoor side.• Check the abnormal condition for the component of

Compressor/Outdoor Fan Motor, 4 way.• Check the "open" or "short" of connecting wires between indoor and

outdoor.


Exploded View

Exploded View

268712

135315152313

267110

131414

354212

131413

W0CZZ

146811-1

146811-2

152302

152302

359011

135311

342801

135301

266090268714

263230

249951

359012

342800

352392

346810

733010

135313-1

135313-2

135314

135312

159830

352391

131411

131412

131410

159901

352150

35211B

1. Indoor Unit Models: 30k SERIES

Service Manual 71

Exploded View

Models: 36k SERIES, 38k SERIES

268712

135315152313

135314

267110

354212

W0CZZ

152302-1

152302-2

135311

35211B

342801

135301

159901

266090268714

263230

131414

131413

352150

146811-1

146811-2

146811-3

249951

359012

359011

342800

131411

131412

352392 346811

733010

135313-1

135313-2

135313-3

135312

159830

352391

131410

152302-1


Exploded View

447910

550140

552560552202

561410

552116

566000554160

649950

552203-2

552203-1

435512

554031

137213

137213

559010

435301

403410

546810

549610

437210

435511

552111

552102-1

552102-2552201-1

263230668711

261704

W0CZZ-2W0CZZ-1 W0CZZ-2

W6920

2. Outdoor Unit Models: 30k SERIES

Service Manual 73

Exploded View

137213

435512-1

435511

435512-2

559010

546810

566001

649950

649950

W0CZZ-2

W0CZZ-1

W0CZZ-3

263230

435301

552203-2

552203-1

566000

552202

554160

554031-1

554031-3

554031-2

522201

430410

447910

2. Outdoor Unit Models: 36k SERIES, 38k SERIES


Replacement Parts List

Replacement Parts ListIndoor Unit

131410 CHASSIS ASSEMBLY 3141A10001B 3141A10001B 3141A10001B 3141A10001B R131411 GUIDE ASSY 4975A20003A 4975A20003A 4975A20003A 4975A20003A R131412 CHASSIS 3140A20002A 3140A20002A 3140A20002A 3140A20002A R131413 CHASSIS 3140A10006D 3140A10006D 3140A10006D 3140A10006D R131414 GUIDE ASSY 4975A20001B 4975A20001B 4975A20001B 4975A20001B R135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10056C 3531A10056C 3531A10056C 3531A10056C R135312 GRILLE ASSEMBLY,FRONT(SINGLE) 3531A10250D 3531A10058V 3531A10058T 3531A10058T R

135313-1 GRILLE ASSEMBLY,INLET 3531A10060M 3531A10060M 3531A10060M 3531A10060M R135313-2 GRILLE ASSEMBLY,INLET 3530A20088A 3530A20088A 3530A20088A 3530A20088A R135314 GRILLE INLET 3530A20087A 3530A20087A 3530A20087A 3530A20087A R135315 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10058T 3531A10250F 3531A10250H 3531A10250Q R

146811-1 MOTOR ASSEMBLY,STEP 4681AR2727B 4681AR2727B 4681AR2727B 4681AR2727B R146811-2 MOTOR ASSY,STEP 4681AR2727M 4681AR2727M 4681AR2727M 4681AR2727M R152302 FILTER(MECH),A/C 5230A10001A 5230A10001A 5230A10001A 5230A10001A R152313 FILTER ASSEMBLY,DEODORIZER 5231A20032D 5231A20032F 5231A20032D 5231A20032D R159830 AIR CLEANER ASSEMBLY 5983A10002N - 5983A10002L 5983A10002R R159901 VANE,HORIZONTAL 5990A20003A 5990A20003A 5990A20003A 5990A20003A R249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20337Z 4995A20183B 4995A10115B 4995A20337S R263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 6323A20002C 6323A20002C R266090 H.V ASSY 6609A10003C - 6609A10003C 6609A10003C R267110 REMOTE CONTROLLER ASSEMBLY 6711A20077U 6711A20067D 6711A20077M 6711A20091G R268712 PWB(PCB) ASSY,DISPLAY 6871A20108B 6871A20108A 6871A20108B 6871A20108B R268714 PWB(PCB) ASSEMBLY,MAIN 6871A10114R 6871A10012U 6871A10114T 6871A10114K R342800 BEARING 4280A20003A 4280A20003A 4280A20003A 4280A20003A R342801 BEARING 4280A20001A 4280A20001A 4280A20001A 4280A20001A R346810 MOTOR ASSEMBLY,INDOOR 4681AP2632E 4681AP2632D 4681AP2632D 4681AP2632D R35211B TUBE ASSEMBLY , TUBING 5211A20200B 5211A20200B 5211A20200B 5211A20200A R352150 HOSE ASSY,DRAIN 5251AR1222P 5251AR1222P 5251AR1222P 5251AR1222P R352391 AIR GUIDE ASSEMBLY 5239A10001A 5239A10001A 5239A10001A 5239A10001A R352392 AIR GUIDE ASSEMBLY 5239A10001B 5239A10001B 5239A10001B 5239A10001B R354212 EVAPORATOR ASSEMBLY,FINAL 5421A20057A 5421A20057A 5421A20057C 5421A20057C R

359011-1 FAN ASSY,CROSS FLOW 5901AR2441F 5901AR2441G 5901AR2441G 5901AR2441G R359011-2 FAN ASSY,CROSS FLOW 5901AR2441G 5901AR2441F 5901AR2441F 5901AR2441F R733010 PLATE ASSY,INSTALL 3301A10001A 3301A10001A 3301A10001A 3301A10001A RW0CZZ CAPACITOR, DRAWING 3H01487G 3H01487G 3H01487G 3H01487G R

LOCATIONNO.

DESCRIPTION REMARKSPART NO.

LS-C302MMM0 LS-C306MMB0 LS-C306MMM0 LS-H306MMM0

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

Service Manual 75


Indoor Unit

131410 CHASSIS ASSEMBLY 3141A10001A 3141A10001B 3141A10001A 3141A10001A R131411 GUIDE ASSY 4975A20003A 4975A20003A 4975A20003A 4975A20003A R131412 GUIDE ASSY 4975A20001C 4975A20001B 4975A20001A 4975A20001A R131413 CHASSIS 3140A20002A 3140A20002A 3140A20002A 3140A20002A R131414 CHASSIS 3140A10006E 3140A10006D 3140A10006C 3140A10006C R135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10056G 3531A10056C 3531A10056E 3531A10056E R135312 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10058Y 3531A10058T 3531A10250F 3531A10058U R

135313-1 GRILLE ASSEMBLY,INLET 3531A10060Q 3531A10060M 3531A10060N 3531A10060N R135313-2 GRILLE ASSEMBLY,INLET 3530A20088B 3530A20088A 3530A20088A 3530A10170A R135313-3 GRILLE ASSEMBLY,INLET 3530A20087B 3530A10170A 3530A10170A 3530A20088A R135314 GRILLE,INLET 3530A10170B 3530A20087A 3530A20087A 3530A20087A R135315 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10058Y 3531A10058U 3531A10058W 3531A10058U R

146811-1 MOTOR ASSEMBLY,STEP 4681AR2727B 4681AR2727B 4681AR2727B 4681AR2727B R146811-2 MOTOR ASSY,STEP 4681AR2727M 4681AR2727M 4681AR2727M 4681AR2727M R152302-1 FILTER(MECH),A/C 5230A10001A 5230A10001A 5230A10001A 5230A10001A R152302-2 FILTER(MECH),A/C 5230A10002A 5230A10002A 5230A10002A 5230A10002A R152313 FILTER ASSEMBLY,DEODORIZER 5231A30001A 5231A20032D 5231A20032F 5231A20032D R159830 AIR CLEANER ASSEMBLY 5983A10002C 5983A10002R 5238A10002A 5983A10002L R159901 VANE,HORIZONTAL 5990A20002B 5990A20003A 5990A20002A 5990A20002A R249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20133N 4995A20337S 4995A20337K 4995A20337P R263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 6323A20002C 6323A20002C R266090 H.V ASSY 6609A10003C 6609A10003C - 6609A10003C R267110 REMOTE CONTROLLER ASSEMBLY 6711A20025V 6711A20091G 6711A20067D 6711A20077M R268712 PWB(PCB) ASSY,DISPLAY 6871A20108B 6871A20108B 6871A20108A 6871A20108B R268714 PWB(PCB) ASSY,MAIN 6871A10012H 6871A10114K 6871A10152B 6871A10152F R342800 BEARING 4280A20003A 4280A20003A 4280A20003A 4280A20003A R342801 BEARING 4280A20001A 4280A20001A 4280A20001A 4280A20001A R346811 MOTOR ASSY,INDOOR 4681AP2632G 4681AP2632G 4681AP2632G 4681AP2632G R352150 HOSE ASSY,DRAIN 5251AR1222P 5251AR1222P 5251AR1222P 5251AR1222P R35211B TUBE ASSEMBLY , TUBING 5211A20200C 5211A20200A 5211A20200C 5211A20200C R352391 AIR GUIDE ASSEMBLY 5239A10001C 5239A10001A 5239A10001C 5239A10001C R352392 AIR GUIDE ASSEMBLY 5239A10001D 5239A10001B 5239A10001D 5239A10001D R354210 EVAPORATOR ASSEMBLY,FIRST 5421A20058B 5421A20058C 5421A20058B 5421A20058D R359011 FAN ASSY,CROSS FLOW 5901AR2441H 5901AR2441G 5901AR2441H 5901AR2441H R359012 FAN ASSY,CROSS FLOW 5901AR2441J 5901AR2441F 5901AR2441J 5901AR2441J R733010 PLATE ASSY,INSTALL 3301A10001A 3301A10001A 3301A10001A 3301A10001A RW0CZZ CAPACITOR, DRAWING 3H01487G 3H01487G 3H01487G 3H01487G R

LOCATIONNO.


LS-C362NMD0 LS-C362NMM0 LS-C382NMB0 LS-C382NMM0




Indoor Unit

131410 CHASSIS ASSEMBLY 3141A10001A 3141A10001A 3141A10001A 3141A10001A R131411 GUIDE ASSY 4975A20003A 4975A20003A 4975A20003A 4975A20003A R131412 GUIDE ASSY 4975A20001C 4975A20001A 4975A20001A 4975A10001A R131413 CHASSIS 3140A20002A 3140A20002A 3140A20002A 3140A20002A R131414 CHASSIS 3140A10006C 3140A10006C 3140A10006C 3140A10006C R135311 GRILLE ASSEMBLY,DISCHARGE(INDOOR) 3531A10056G 3531A10056E 3531A10056E 3531A10056E R135312 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10058Y 3531A10250E 3531A10058U 3531A10058U R

135313-1 GRILLE ASSEMBLY,INLET 3531A10060Q 3531A10060N 3531A10060N 3531A10060N R135313-2 GRILLE ASSEMBLY,INLET 3530A20088B 3530A20088A 3530A20087A 3530A20087A R135313-3 GRILLE ASSEMBLY,INLET 3530A10170B 3530A10170A 3530A10170A 3530A10170A R135314 GRILLE,INLET 3530A20087B 3530A20087A 3530A20088A 3530A20088A R135315 GRILLE ASSEMBLY,FRONT(INDOOR) 3531A10250P 3531A10058U 3531A10250E 3531A10250J R

146811-1 MOTOR ASSEMBLY,STEP 4681AR2727B 4681AR2727B 4681AR2727B 4681AR2727B R146811-2 MOTOR ASSY,STEP 4681AR2727M 4681AR2727M 4681AR2727M 4681AR2727M R152302-1 FILTER(MECH),A/C 5230A10001A 5230A10001A 5230A10001A 5230A10001A R152302-2 FILTER(MECH),A/C 5230A10002A 5230A10002A 5230A10002A 5230A10002A R152313 FILTER ASSEMBLY,DEODORIZER 5231A30001A 5231A20032D 5231A20032D 5231A20032D R159830 AIR CLEANER ASSEMBLY 5983A10002C 5983A10002N 5983A10002N 5983A10002L R159901 VANE,HORIZONTAL 5990A20002B 5990A20002A 5990A20002A 5990A20002A R249951 CONTROL BOX ASSEMBLY,INDOOR 4995A20133W 4995A20183H 4995A20183H 4995A20337R R263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 6323A20002C 6323A20002C R266090 H.V ASSY 6609A10003C 6609A10003C - 6609A10003C R267110 REMOTE CONTROLLER ASSEMBLY 6711A20025W 6711A20073Y 6711A20073Y 6711A20077N R268712 PWB(PCB) ASSY,DISPLAY 6871A20108B 6871A20108B 6871A20108B 6871A20108B R268714 PWB(PCB) ASSY,MAIN 6871A10012G 6871A10114M 6871A10114M 6871A10152H R342800 BEARING 4280A20003A 4280A20003A 4280A20003A 4280A20003A R342801 BEARING 4280A20001A 4280A20001A 4280A20001A 4280A20001A R346811 MOTOR ASSY,INDOOR 4681AP2632G 4681AP2632G 4681AP2632G 4681AP2632G R352150 HOSE ASSY,DRAIN 5251AR1222P 5251AR1222P 5251AR1222P 5251AR1222P R35211B TUBE ASSEMBLY , TUBING 5211A20200C 5211A20200C 5211A20200C 5211A20200C R352391 AIR GUIDE ASSEMBLY 5239A10001C 5239A10001C 5239A10001C 5239A10001C R352392 AIR GUIDE ASSEMBLY 5239A10001D 5239A10001D 5239A10001D 5239A10001D R354210 EVAPORATOR ASSEMBLY,FIRST 5421A20058B 5421A20058B 5421A20058B 5421A20058D R359011 FAN ASSY,CROSS FLOW 5901AR2441H 5901AR2441H 5901AR2441H 5901AR2441H R359012 FAN ASSY,CROSS FLOW 5901AR2441J 5901AR2441J 5901AR2441J 5901AR2441J R733010 PLATE ASSY,INSTALL 3301A10001A 3301A10001A 3301A10001A 3301A10001A RW0CZZ CAPACITOR, DRAWING 3H01487G 3H01487G 3H01487G 3H01487G R

LOCATIONNO.


LS-H362NMD0 LS-H362NMM0 LS-H382NMB0 LS-H382NMM0


Service Manual 77


Outdoor Unit

137213-1 PANEL ASSEMBLY, SIDE 1A00202F 1A00202F 1A00202F 1A00202F R137213-2 PANEL ASSEMBLY, SIDE 3A02284U 3A02284U 3A02284U 3A02284U R261704 TRANSFORMER, POWER 6170A20004B 6170A20004B 6170A20004B 6170A20004B R263230 THERMISTOR ASSEMBLY 3Q35015P 6323A20002C 6323A20002C 6323A20002C R430410 BASE ASSY,WELD[OUTDOOR] 3041A30003Y 3041A30003Y 3041A30003Y 3041A30003Y R435301 GRILLE,DISCHARGE 3530A20007J 3530A20007J 3530A20007J 3530A20007J R435511 COVER ASSEMBLY,CONTROL(OUTDOOR) 3A01919B 3A01919B 3A01919B 3A01919B R435512 COVER ASSEMBLY,TOP(OUTDOOR) 3H03266H 3H03266H 3H03266H 3H03266H R437210 PANEL ASSEMBLY,FRONT SUB 2A01041M 2A01041M 2A01041M 2A01041M R447910 BARRIER ASSEMBLY,OUTDOOR 2A01043L 2A01043L 2A01043L 2A01043L R546810 MOTOR ASSEMBLY,OUTDOOR 4681A20008N 4681A20008N 4681A20008N 2H02113U R549610 MOUNT, MOTOR 2A01035M 2A01035M 2A01035M 2A01035V R550140 ISOLATOR, COMP 4H00637A 4H00637A 4H00637A 4H00637A R552111 TUBE ASSY,CAPILLARY 5211A20034F 5211A20034G 5211A20034G - R552116 TUBE ASSY,REVERSING 5221AR2014X - - - R552201 VALVE,CHECK 3A01020H - - - R552202 VALVE,REVERSING 3A02027B - - - R

552203-1 VALVE,SERVICE 2A00393Q 2A00393Q 2A00393Q 2A00392N R552203-2 VALVE,SERVICE 2A00392N 2A00392N 2A00392N 2A00393Q R552560 MUFFLER ASSY 5257A30001N 5257A30001P 5257A30001P - R554031 CONDENSER ASSEMBLY,BENT 6140AP2096X 6140AP2096X 6140AP2096X 6140AP2096X R554160 COMPRESSOR ASSEMBLY,FINAL 5417A90001D 5417A90001D 5417A90001D 5416AR1411J R559010 FAN ASSEMBLY,PROPELLER 1A00195B 1A00195B 1A00195B 1A00195A R561410 COIL ASSEMBLY,REVERSING VALVE 3A02028Y - - - R561410 COIL ASSEMBLY,REVERSING VALVE 3A02028B - - - R566000 SWITCH , PRESSURE 3A02524A - - - R649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A20075R 4995A20075J 4995A20075J 4995A20075G R668711 PWB(PCB) ASSY,MAIN(OUTDOOR) 6871A20105A 6871A20105D 6871A20105D 3301A10001A R

W0CZZ-1 CAPACITOR,DRAWING 2A00986S 2A00986S 2A00986S 2A00986A RW0CZZ-2 CAPACITOR,DRAWING 2A00986D 2A00986D 2A00986D 2A00986D R

W6920 RELAY 6920AP3400A 6920AP3400A 6920AP3400A 6920AP3400A R

LOCATIONNO.


LS-H306MMM0 LS-C306MMB0 LS-C306MMM0 LS-C302MMM0




Outdoor Unit

137213 PANEL , SIDE 3A01055Z 3A01055Z 3A01055Z 3A01055Z R261704 TRANSFORMER , POWER 6170A20004B 6170A20004B 6170A20004B 6170A20004B R263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 6323A20002C 6323A20002C R430410 BASE ASSY,WELD[OUTDOOR] 3A01517W 3A01517W 3A01517W 3A01517W R435301 GRILLE ASSEMBLY,DISCHARGE(OUTDOOR) 2A00144Y 2A00144Y 2A00144Y 2A00144Y R435511 COVER ASSY,CONTROL(OUTDOOR) 3A01293Z 3A01293Z 3A01293Z 3A01293Z R

435512-1 COVER ASSY,TOP(OUTDOOR) 2A00273A 2A00273A 2A00273A 2A00273A R435512-2 COVER ASSY,TOP(OUTDOOR) 3A01651A 3A01651A 3A01651A 3A01651A R437210 PANEL ASSEMBLY,FRONT SUB 2A00251Z 2A00251Z 2A00251Z 2A00251Z R447910 BARRIER ASSY,OUTDOOR 4761A90001A 4761A90001A 4761A90001A 4761A90001A R546810 MOTOR ASSEMBLY,OUTDOOR 2H00430J 2H00430J 2H00430J 2H00430J R550140 ISOLATOR,COMP 4H00637A 4H00637A 4H00637A 4H00637A R552111 TUBE ASSY , CAPILLARY 5211A30134D 5211A30134D 5211A30134D 5211A20034D R552116 TUBE ASSY , REVERSING 5211A20032L 5211A20032L 5211A20032L 5221A20032L R

552203-1 VALVE,CHECK 5220A30003A 5220A30003A 5220A30003A 5220A30003A R552203-2 VALVE,CHECK 3A01020H 3A01020H 3A01020H 3A01020H R552202 VALVE,REVERSING 3A02027B 3A02027B 3A02027B 3A02027B R

552203-1 VALVE,SERVICE 2A00393A 2A00393A 2A00393A 2A00393A R552203-2 VALVE,SERVICE 2A00499A 2A00499A 2A00499A 2A00499A R552560 MUFFLER ASSY 5257A30001V 5257A30001V 5257A30001V 5257A30001V R

554031-1 CONDENSER ASSEMBLY,BENT 5403A20006H 5403A20006H 5403A20006N 5403A20006A R554031-2 CONDENSER ASSEMBLY,BENT 5403A20006N 5403A20006N 5403A20006H 5403A20006E R554160 COMPRESSOR ASSEMBLY 2A01196B 2A01196B 2A01196B 2A01196B R559010 FAN ASSY,PROPELLER 1H00156B 1H00156B 1H00156B 1H00156B R561410 COIL ASSEMBLY,REVERSING VALVE 3A02028Y 3A02028Y 3A02028Y 3A02028Y R566000 SWITCH,PRESSURE 3A02524A 3A02524A 3A02524A 3A02524A R566001 SWITCH,MAGNET 6600B000036 6600B000036 6600B000036 6600B000036 R649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A20075P 4995A20075P 4995A20075P 4995A20075P R668711 PWB(PCB) ASSY,MAIN(OUTDOOR) 6871A20105E 6871A20105E 6871A20105E 6871A20105E R

W0CZZ-1 CAPACITOR,DRAWING 2A00986S 2A00986S 2A00986S 2A00986S RW0CZZ-2 CAPACITOR,DRAWING 3A02157A 3A02157A 3A02157A 3A02157A R

LOCATIONNO.


LS-H382NMM0 LS-H382NMB0 LS-H362NMM0 LS-H362NMD0


Service Manual 79


Outdoor Unit

137213 PANEL , SIDE 3A01055Z 3A01055Z 3A01055Z 3A01055Z R261704 TRANSFORMER , POWER 6170A20004B 6170A20004B 6170A20004B 6170A20004B R263230 THERMISTOR ASSEMBLY 6323A20002C 6323A20002C 6323A20002C 3Q35015G R430410 BASE ASSY,WELD[OUTDOOR] 3A01517W 3A01517W 3A01517W 3A01517W R435301 GRILLE ASSEMBLY,DISCHARGE(OUTDOOR) 2A00144Y 2A00144Y 2A00144Y 2A00144Y R435511 COVER ASSY,CONTROL(OUTDOOR) 3A01293Z 3A01293Z 3A01293Z 3A01293Z R

435512-1 COVER ASSY,TOP(OUTDOOR) 2A00273A 2A00273A 2A00273A 3A01651A R435512-2 COVER ASSY,TOP(OUTDOOR) 3A01651A 3A01651A 3A01651A 3A01651A R437210 PANEL ASSEMBLY,FRONT SUB 2A00251Z 2A00251Z 2A00251Z 2A00251Z R447910 BARRIER ASSY,OUTDOOR 4761A90001A 4761A90001A 4761A90001A 4761A90001A R546810 MOTOR ASSEMBLY,OUTDOOR 2H00430J 2H00430J 2H00430J 2H00430J R550140 ISOLATOR,COMP 4H00637A 4H00637A 4H00637A 4H00637A R552111 TUBE ASSY , CAPILLARY - - - - R552116 TUBE ASSY , REVERSING - - - - R

552203-1 VALVE,CHECK - - - - R552203-2 VALVE,CHECK - - - - R552202 VALVE,REVERSING - - - - R

552203-1 VALVE,SERVICE 2A00393A 2A00393A 2A00393A 2A00393A R552203-2 VALVE,SERVICE 2A00499A 2A00499A 2A00499A 2A00499A R552560 MUFFLER ASSY 5257A30001T 5257A30001T 5257A30001T 5257A30001T R

554031-1 CONDENSER ASSEMBLY,BENT 5403A20006H 5403A20006H 5403A20006H 5403A20006C R554031-2 CONDENSER ASSEMBLY,BENT 5403A20006J 5403A20006J 5403A20006J 5403A20006D R554160 COMPRESSOR ASSEMBLY 2A01196B 2A01196B 2A01196B 2A01196B R559010 FAN ASSY,PROPELLER 1H00156B 1H00156B 1H00156B 1H00156B R561410 COIL ASSEMBLY,REVERSING VALVE - - - - R566000 SWITCH,PRESSURE - - - - R566001 SWITCH,MAGNET 6600B000036 6600B000036 6600B000036 6600B000036 R649950 CONTROL BOX ASSEMBLY,OUTDOOR 4995A20075M 4995A20075M 4995A20075M 4995A20075M R668711 PWB(PCB) ASSY,MAIN(OUTDOOR) 6871A20105D 6871A20105D 6871A20105D 6871A20105D R

W0CZZ-1 CAPACITOR,DRAWING 3A02157A 3A02157A 3A02157A 3A02157A RW0CZZ-2 CAPACITOR,DRAWING 2A00986S 2A00986S 2A00986S 2A00986S R

LOCATIONNO.


LS-C382NMM0 LS-C382NMB0 LS-C362NMM0 LS-C362NMD0


P/No.: 3828A20347E

January, 2005Printed in Korea

manual servicio mini split 36

Documents

unit function

indoor unit

outdoor unit

functionremote control

safety precautions

authorized service personnel

c362nmd0nmm0lsh362nmd0n

connection of piping