LG LMAN090HNS Schematic

website http://www.lgservice.com

Multi Type Air Conditioner

SERVICE MANUAL

MODEL

• Indoor Unit:

Room Type

AMNH093D4A0(LMN090HE) AMNH123DEA0 (LMN120HE) AMNC093D4A0(LMN090CE) AMNC123DEA0 (LMN120CE)

Art Cool Type

AMNH093APM0(LMAN090HNS) AMNH123APM0(LMAN120HNS) AMNC093APM0(LMAN090CNS) AMNC123APM0(LMAN120CNS)

• Outdoor Unit:

A2UH243FA0(LMU240HE) A2UC243FA0 (LMU240CE)

CAUTION

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

• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

Multi type Air Conditioner Service Manual

TABLE OF CONTENTS

Model Number Nomenclature ....................................................................................................................3

Symbols Used in this Manual ...................................................................................................................4

Safety Precautions...............................................................................................................................

Dimensions...............................................................................................................................

Indoor Unit.....................................................................................................................

Outdoor Unit ....................................................................................................................

Product Specifications .............................................................................................................................13

Installation ...............................................................................................................................

Installation Parts..............................................................................................................

Installation Tools..............................................................................................................

Select the best location .........................................................................................................................16

Piping length and elevation ....................................................................................................................17

Fixing Installation Plate(Standart Type)..................................................................................................18

Preparing work for Installation (Artcool Type Only) ................................................................................19

Flaring Work and Connection of Piping..................................................................................................21

Flaring work............................................................................................................................................21

Connecting the Piping ............................................................................................................................22

Connecting the Cable between Indoor Unit and Outdoor Unit.............................................................30

Connect the cable to the Indoor unit. .....................................................................................................30

Connect the cable to the Outdoor unit....................................................................................................31

Connection method of the connecting cable(Example)..........................................................................32

Connect the cable to the indoor unit.......................................................................................................33

Checking the Drainage, Forming the Pipings and Long Pipe Setting .................................................34

Checking the drainage............................................................................................................................34

Forming the piping..................................................................................................................................35

Air Purging and Evacuation.....................................................................................................................36

Checking method ...................................................................................................................................36

Evacuation..............................................................................................................................................37

Charging ....................................................................................................................................................38

Test Running .............................................................................................................................................39

Operation ...................................................................................................................................................40

Function of control..................................................................................................................................40

Function of Indoor Unit ...........................................................................................................................45

Function of Outdoor Unit ........................................................................................................................47

Remote Control Operation .....................................................................................................................48

Disassembly ..............................................................................................................................................49

Indoor Unit..............................................................................................................................................49

Schematic Diagram...................................................................................................................................54

Electronic Control Device .......................................................................................................................54

Wiring Diagram.......................................................................................................................................58

Components Locations...........................................................................................................................59

Troubleshooting Guide .............................................................................................................................64

Refrigeration Cycle Diagram ..................................................................................................................64

Self-diagnosis Function ..........................................................................................................................65

Cycle Troubleshooting Guide..................................................................................................................66

Electronic Parts Troubleshooting Guide .................................................................................................67

General Information................................................................................................................................72

2-way, 3-way Valve ....................................................................................................................................78

Exploded View & Replacement Parts List ..............................................................................................82

Indoor Unit .............................................................................................................................................82

Outdoor Unit ..........................................................................................................................................86

.................

........................11

.......................12

..................

.......................15

.......

2 Multi type Air Conditioner

Model Number Nomenclature

AMN H 3

4DA0

Serial Number

A2U H 324 F A 0

Electrical Ratings

MPS Variable Multi System Indoor Unit

Model Type

H: Heat Pump C: Cooling Only

Ex) 9,000 Btu/h '09', 12,000 Btu/h '12'

Nominal Cooling Capacity in Btu/h

Electrical Rating

3: 1Ø, 208~230V, 60Hz

Chassis Name Indoor Unit Type

Wall mounted split

D : D- look type L : L- look type G : G- look type M : M- look type N : N- look type

Artcool type

A : standard/wide type D : Deluxe type B : Ceiling Concealed Duct V : Ceiling & Floor(Convertible)

Function

A : Basic, L : Nano Plasma + Auto Clean(Wall Mounted) C: Plasma(Ceiling Cassette), G: Low Static Motor

ART COOL(DELUXE) Type Front Panel Color

B : Blue, D : Wood, M : Metal, R : Mirror, W : White

R-410A MPS Variable Multi System Outdoor Unit And No. of Connectable Indoor Units

Ex) A2U : Connectable max. 2 Indoor Units

Model Type

H: Heat Pump C: Cooling Only

Ex) 24,000 Btu/h '24', 36,000 Btu/h '36'

Nominal Cooling Capacity in Btu/h

3: 1Ø, 208~230V, 60Hz

Multi Type

Function

A : Basic

F : Free Joint Multi Type

Serial Number

Indoor Unit

Model Number Nomenclature

Outdoor Unit

Service Manual 3

Model Number Nomenclature

Operation

1 Unit

2 Unit

Combination of Indoor Unit(kBtu/h)

Cooling

Each Capacity

Unit-A Unit-B

UNIT-A(Btu/h) UNIT-B(Btu/h)

Total Btu/h kW

UNIT-A(Btu/h) UNIT-B(Btu/h)

Btu/h kW

Total Capacity Each Capacity Total Capacity

Heating

9000

12000

9000

12000

9000

12000

9000

12000

18000

21000

24000

2637

3516

5275

6154

7033

9000

12000

9000

12000

9000

12000

9000

12000

18000

21000

24000

2637

3516

5275

6154

7033

NOTICE

Combination table

Notes :

1.Cooling Capacity is based on : indoor temp. 26.7°C(80.1°F)DB, 19.4°C(66.9°F)WB; outdoor temp. 35°C(95°F)DB, 23.9°C(75°F)WB

2.Heating Capacity is based on : indoor temp. 21.1°C(70°F)DB, 15.6°C(60.1°F)WB; outdoor temp. 8.3°C(46.9°F)DB, 6.1°C(43°F)WB

3.The total ability of connected a indoor unit is up to 24k Btu/h

Symbols Used in this Manual

This symbol alerts you to the risk of electric shock.

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

This symbol indicates special notes.

4 Multi type Air Conditioner

Safety Precautions

WARNING

Safety Precautions

To prevent injury to the user or other people and property damage, the following instructions must be followed.

■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications.

WARNING

CAUTION

■ 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.

■ Installation

Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit.

• There is risk of fire or electric shock.

For electrical work, contact the dealer, seller, a qualified electrician, or an Authorized Service Center

• Do not disassemble or repair the product. There is risk of fire or electric shock.

Always ground the product.

• There is risk of fire or electric shock.

Install the panel and the cover of control box securely.

• There is risk of fire or electric shock.

Always install a dedicated circuit and breaker.

• Improper wiring or installation may cause fire or electric shock

Use the correctly rated breaker or fuse.

• There is risk of fire or electric shock.

Service Manual 5

Safety Precautions

Do not modify or extend the power cable.

• There is risk of fire or electric shock.

For installation, always contact the dealer or an Authorized Service Center.

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

Do not install, remove, or reinstall the unit by yourself (customer).

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

Do not install the product on a defective installation stand.

• It may cause injury, accident, or damage to the product.

Be cautious when unpacking and installing the product.

• Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.

Be sure the installation area does not deteriorate with age.

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

Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open.

• Moisture may condense and wet or damage furniture.

6 Multi type Air Conditioner

Take care to ensure that power cable could not be pulled out or damaged during operation.

• There is risk of fire or electric shock.

Do not place anything on the power cable.

• There is risk of fire or electric shock.

Safety Precautions

Do not plug or unplug the power supply plug during operation.

• There is risk of fire or electric shock.

Do not allow water to run into electric parts.

• It may cause There is risk of fire, failure of the product, or electric shock.

Do not touch(operate) the product with wet hands.

• There is risk of fire or electrical shock.

Do not store or use flammable gas or combustibles near the product.

• There is risk of fire or failure of product.

Do not place a heater or other appliances near the power cable.

• There is risk of fire and electric shock.

Do not use the product in a tightly closed space for a long time.

• Oxygen deficiency could occur.

When flammable gas leaks, turn off the gas and open a window for ventilation before turn the product on.

• Do not use the telephone or turn switches on or off. There is risk of explosion or fire

Gasolin

If strange sounds, or small or smoke comes from product. Turn the breaker off or disconnect the power supply cable.

• There is risk of electric shock or fire.

Stop operation and close the window in storm or hurricane. If possible, remove the product from the window before the hurricane arrives.

• There is risk of property damage, failure of product, or electric shock.

Service Manual 7

Safety Precautions

CAUTION

Do not open the inlet grill of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)

• There is risk of physical injury, electric shock, or product failure.

When the product is soaked (flooded or submerged), contact an Authorized Service Center.

• There is risk of fire or electric shock.

Ventilate the product from time to time when operating it together with a stove, etc.

• There is risk of fire or electric shock.

Be cautious that water could not enter the product.

• There is risk of fire, electric shock, or product damage.

Turn the main power off when cleaning or maintaining the product.

• There is risk of electric shock.

When the product is not be used for a long time, disconnect the power supply plug or turn off the breaker.

• There is risk of product damage or failure, or unintended operation.

■ Installation

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

• Low refrigerant levels may cause failure of product.

Install the drain hose to ensure that water is drained away properly.

• A bad connection may cause water leakage.

Take care to ensure that nobody could step on or fall onto the outdoor unit.

• This could result in personal injury and product damage.

Keep level even when installing the product.

• To avoid vibration or water leakage.

8 Multi type Air Conditioner

90°

Safety Precautions

Do not install the product where the noise or hot air

Use two or more people to lift

and transport the product. from the outdoor unit could damage the neighborhoods.

• It may cause a problem for your neighbors.

• Avoid personal injury.

■ Operational

Do not expose the skin directly to cool air for long periods of time. (Don't sit in the draft.)

Do not install the product where it will be exposed to sea wind (salt spray) directly.

• It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation.

Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.

• This could harm to your health.

Do not block the inlet or outlet of air flow.

• It may cause product failure.

• There is risk of damage or loss of property.

Useasoftclothtoclean.Do not use harsh detergents, solvents, etc.

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

Do not touch the metal parts of the product when removing the air filter. They are very sharp!

• There is risk of personal injury.

Wax

Thinner

Service Manual 9

Safety Precautions

Donotsteponorputanyting on the product. (outdoor units)

• There is risk of personal injury and failure of product.

Do not drink the water drained from the product.

Always insert the filter securely. Clean the filter every two weeks or more often if necessary.

• A dirty filter reduces the efficiency of the air conditioner and could cause product malfunction or damage.

Use a firm stool or ladder when cleaning or maintaining the product.

Do not insert hands or other objects through the air inlet or outlet while the product is operated.

• There are sharp and moving parts that could cause personal injury.

Replace the all batteries in the remote control with new ones of the same type. Do not mix old and new batteries or different types of batteries.

• It is not sanitary and could cause serious health issues.

• Be careful and avoid personal injury.

Do not recharge or disassemble the batteries. Do not dispose of batteries in a fire.

• They may burn or explode.

• There is risk of fire or explosion

If the liquid from the batteries gets onto your skin or clothes, wash it well with clean water. Do not use the remote if the batteries have leaked.

• The chemicals in batteries could cause burns or other health hazards.

10 Multi type Air Conditioner

Dimensions

Pipe Hole

Fix Hole

Hanger Hole

Installation plate

Indoor Unit

1. Split Type Indoor 2. Art Cool Type Indoor Unit

Dimensions

S pl it Ty p e A RT C OO L Ty pe

Model

Dimension

S4 SE

9 kBtu/h 12 kBtu/h 9 kBtu/h 12 kBtu/h

SP3

W mm 840 895 570

H mm 270 282 568

D mm 153 165 129

Service Manual 11

L7L5L6

Dimensions

Outdoor Unit

MODEL

DIM

W mm 870

H mm 800

D mm 320

L1 mm 370

L2 mm 25

L3 mm 775

L4 mm 25

L5 mm 546

L6 mm 160

L7 mm 160

UE1

24kBtu/h

12 Multi type Air Conditioner

Product Specifications

Indoor Unit

Product Specifications

Indoor Unit Type

Model

Nominal Cooling Capacity kcal/h(W)

Nominal Heating Capacity kcal/h(W)

Air Circulation H/M/L CMM(CFM) Setting temperature range(cool/heat) °C Fan motor Output W

Fan Type

Noise Level (Sound Press,1m) Temperature controller Coil Tube Size (OD) inch(mm)

Dehumidification Rate l/h Dimensions (W*H*D) inch(mm) Net Weight kg(lbs) Piping Connection Liquid inch(mm)

Packing Dimension (W*H*D) inch(mm) Stuffing Quantity With(Without) S/Parts 20/40ft(hi-c)

Nominal Cooling Capacity kcal/h(W)

Nominal Heating Capacity kcal/h(W)

Air Circulation H/M/L CMM(CFM) Setting temperature range(cool/heat) °C Fan motor Output W

Fan Type

Noise Level (Sound Press,1m) Temperature controller Coil Tube Size (OD) inch(mm)

Dehumidification Rate l/h Dimensions (W*H*D) inch(mm) Net Weight kg(lbs) Piping Connection Liquid inch(mm)

Packing Dimension (W*H*D) inch(mm) Stuffing Quantity With(Without) S/Parts 20/40ft(hi-c)

★

Btu/h

★

Btu/h

Model Input V Running Current A

No. Used / Diameter EA/inch(mm) H/M/L dBA

Fins per inch No.ofRows&Column

Gas inch(mm) Drain hose (ID Ø)mm

Indoor Unit Type

Model

★

Btu/h

★

Btu/h

Model No.ofPoles Input V Running Current A

No. Used / Diameter EA/inch(mm) H/M/L dBA

Fins per inch No.ofRows&Column

Gas inch(mm) Drain hose (ID Ø)mm

Wall Mounted

AMNC093D4A0(LMN090CE) AMNH093D4A0(LMN090HE) AMNC123DEA0 (LMN120CE) AMNH123DEA0 (LMN120HE)

2,267(2,637) 2,267(2,637) 3,023(3,516) 3,023(3,516)

9,000 9,000 12,000 12,000

- 2,267(2,637) - 3,023(3,516)

- 9,000 - 12,000

8.2(289) 8.2(289) 9.4(332) 9.4(332) 18~30 16~30 18~30 16~30

15 15 15 15

DL-88430LGIF DL-88430LGIF DL-88430LGIF DL-88430LGIF

DC36 DC36 DC36 DC36

0.15 0.15 0.15 0.15

Cross Flow Fan Cross Flow Fan Cross Flow Fan Cross Flow Fan

1/3.74(95) 1/3.74(95) 1/3.74(95) 1/3.74(95) 31 / 29 / 22 31 / 29 / 22 36 / 32 / 29 36 / 32 / 29 Thermistor Thermistor Thermistor Thermistor

0.197(5.0) 0.197(5.0) 0.197(5.0) 0.197(5.0) 20 20 18 18

2R,15C 2R,15C 2R,15C 2R,15C

- 1.1 - 1.2

33.0*10.6*6.0(840*270*153) 33.0*10.6*6.0(840*270*153) 35.2*11.1*6.5(895*282*165) 35.2*11.1*6.5(895*282*165) 7(15.4) 7(15.4) 9.5(20.9) 9.5(20.9)

1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 3/8 (9.52) 3/8 (9.52) 3/8 (9.52) 3/8 (9.52)

20 20 20 20

35.7*13.1*8.8(906*332*223) 35.7*13.1*8.8(906*332*223) 38.3*9.1*14.6(973*231*372) 38.3*9.1*14.6(973*231*372)

440/910 (1091) 440/910 (1091) 353/719 (792) 353/719 (792)

Artcool

AMNC093APM0(LMAN090CNS) AMNH093APM0(LMAN090HNS) AMNC123APM0(LMAN120CNS) AMNH123APM0(LMAN120HNS)

2,267(2,637) 2,267(2,637) 3,023(3,516) 3,023(3,516)

9,000 9,000 12,000 12,000

- 2,267(2,637) - 3,023(3,516)

- 9,000 - 12,000

7.5(264) 7.5(264) 8.5(300) 8.5(300) 18~30 16~30 18~30 16~30

24 24 24 24

DL-89812LGIB DL-89812LGIB DL-89812LGIB DL-89812LGIB

DC36 DC36 DC36 DC36

1.5 1.5 1.5 1.5

Turbo Fan Turbo Fan Turbo Fan Turbo Fan

1/24.32(617.7) 1/24.32(617.7) 1/24.32(617.7) 1/24.32(617.7)

37 / 31 / 27 37 / 31 / 27 43 / 39 / 31 43 / 39 / 31 Thermistor Thermistor Thermistor Thermistor

0.197(5.0) 0.197(5.0) 0.197(5.0) 0.197(5.0) 20 20 20 20

2R,20C 2R,20C 2R,20C 2R,20C

- 1.1 - 1.4

22.4*22.4*5.1(570*568*129) 22.4*22.4*5.1(570*568*129) 22.4*22.4*5.1(570*568*129) 22.4*22.4*5.1(570*568*129) 9(19.84) 9(19.84) 9(19.84) 9(19.84)

1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 3/8 (9.52) 3/8 (9.52) 3/8 (9.52) 3/8 (9.52)

20 20 20 20

26.2*25.7*9.1(665*653*231) 26.2*25.7*9.1(665*653*231) 26.2*25.7*9.1(665*653*231) 26.2*25.7*9.1(665*653*231)

237/534(239/539) 237/534(239/539) 237/534(239/539) 237/534(239/539)

Note : 1.★See the page "Combination Table"

2. Due to our policy of innovation some specifications may be changed without notification.

Service Manual 13

Product Specifications

Outdoor Unit - Multiple piping models

Model

Cooling Capacity★ Btu/hr

Heating Capacity★ Btu/hr

Input★ Cooling W

Running Current★(208/230V)

Power Supply Ø,V,Hz Max. Number of Connectable Indoor Units Compressor Type (Constant) Model

Compressor Type (Constant) Model

Refrigerant charge Charge g(oz)

Coil Tube Size (OD) inch(mm)

Fan motor Model

Fan Type

Air Circulation Outdoor CMM(CFM) Noise Level(H/L) at 230V Defrosting SVC Valve Liquid inch(mm)

Dimensions W*H*D inch(mm) Net Weight Outdoor kg(lbs) Max. Interunit Piping Length

Max. Installation Indoor Unit~Outdoor Unit m Height Difference Indoor Unit~Indoor Unit m Packing Dimension W*H*D inch(mm) Testing Combinations Stuffing Quantity 20/40ft

Notes: 1. Capacities are based on the following conditions:

2. Capacities are Net Capacities.

★

: See the page "Combination Table"

4. Due to our policy of innovation some specifications may be changed without notification.

Heating W Cooling A Heating A

Motor Type Quantity Ea Motor Input W Oil Charge cc Oil Type Capacitor µF/Vac O.L.P Type(model name)

Type Control

Fins per inch No.ofRows&Column/No.

Output W Capacitor µF/Vac

No. Used / Diameter EA/inch(mm) Discharge Side / Top

Sound Press,1m dB(A) 1

Gas

Total of Each Room m For One Room m

Cooling: -Indoor Temperature 26.7°C(80.1°F)DB/19.4°C66.9°F)WB

-Outdoor Temperature 35°C(95°F)DB/23.9°C(75°F)WB

-Interconnecting Piping Length 7.5m

-Level Difference of Zero.

Heating: -Indoor Temperature 21.1°C(70°F)DB/15.6°C(60.1°F)WB

-Outdoor Temperature 8.3°C(46.94°F)DB/6.1°C(42.98°F)WB

-Interconnecting Piping Length 7.5m

-Level Difference of Zero.

kcal/hr

A2UC243FA0(LMU240CE) A2UH243FA0(LMU240HE)

External Type(MRA98996-12026) External Type(MRA98996-12026)

External Type(MRA12105-12026) External Type(MRA12105-12026)

34.3*31.5*12.6 (870*800*320) 34.3*31.5*12.6 (870*800*320)

40.2*34.3*17.3 (1020*870*440) 40.2*34.3*17.3 (1020*870*440)

9,000~24,000 9,000~24,000

2637~7033 2637~7033 2267~6037 2267~6037

- 9,000~24,000

- 2637~7033

- 2267~6037

1170~2390 1170~2390

- 1220~2440

7.7~10.1 7.7~10.1

- 7.4~9.8

1,208/230,60 1,208/230,60

Rotary Rotary GK094K GK094K Hermetic Hermetic

955 955

330±10 330±10

FVC68D FVC68D

30 / 370 30 / 370

Rotary Rotary GK141K GK141K Hermetic Hermetic

1430 1,430

350±10 350±10

FVE FVE

35 / 370 35 / 370

1600 1600

R410A R410A

L.E.V L.E.V

0.276(7.0) 0.276(7.0) 18 18

2R,36C 2R,36C

IC-1640LG GE IC-1640LG GE

90 90

6/370 6/370

Propeller Propeller

1 / 460 1 / 460

Side Side

53(1872) 53(1872)

54 54

- Invertion Cycle 1/4 (6.35) * 2EA 1/4 (6.35) * 2EA 3/8 (9.52) * 2EA 3/8 (9.52) * 2EA

69(152) 69(152)

30 30 15 15

7.5 7.5

SE12K+SE12K SE12K+SE12K

54/114 54/114

14 Multi type Air Conditioner

Installation

Type "A" screw and plastic anchor

Type "B" screw

Remote Control Holder

Installation plate

Figure FigureName

Screw driver

Electric Drill

Measuring Tape, Knife

Hole Core Drill

Spanner

Torque wrench

Ohmmeter

Hexagonal wrench

Ammeter

Gas Leak Detector

Thermometer,

Level

Flaring Tool Set

Name

Read carefully, and then follow step by step.

Installation Parts

Installation

Installation Tools

Service Manual 15

Installation

More than 5cm

(2.0 inch)

More than 5cm

(2.0 inch)

More than 2.3m

(90.6 inch)

More than 5cm

(2.0 inch)

Select the best location

Indoor unit

1. Do not have any heat or steam near the unit.

2. Select a place where there are no obstacles in front of the unit.

3. Make sure that condensation drainage can be conveniently routed away.

4. Do not install near a doorway.

5. Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles.

6. Use a stud finder to locate studs to prevent unnecessary damage to the wall.

More than 10cm

CAUTION: Install the indoor unit

on the wall where the height from the floors more than 2.3m(7.5ft).

Outdoor unit

1. If an awning is built over the unit to prevent direct sunlight or rain exposure, make sure that heat radiation from the condenser is not restricted.

2. Ensure that the spaces indicated by arrows around front, back and side of the unit.

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

4. Take the air conditioner weight into account and select a place where noise and vibration are minimum.

Select a place so that the warm air and sound from

5. the air conditioner do not disturb neighbors.

Rooftop Installations:

If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location. Consult local codes regarding rooftop mounting.

More than 50cm

More than 2m

more than 20cm

(7.9 inch)

more than 20cm

(7.9 inch)

more than 70cm

(27.6 inch)

16 Multi type Air Conditioner

Piping length and elevation

Multi Piping Type

Installation

Capacity(Btu/h)

Max total length of

all pipes (A+B)

Max length of each

pipe (A/B)

Minlengthofeach

pipe (A/B)

Max Elevation between each

indoor unit and out-

Max elevation

between indoor

door unit (h1)

24k 30m(100ft) 15m(50ft) 3m(10ft) 7.5m(25ft) 7.5m(25ft)

Pipe Size

Indoor Capacity

(Btu/h)

Gas Liquid Standard Length Additional Refrigerant

9K 3/8" 1/4" 7.5m(25ft) 20g/m(0.32oz/ft)

12K 3/8" 1/4" 7.5m(25ft) 20g/m(0.32oz/ft)

24k

units (h2)

CAUTION: Capacity is based on standard length and maximum allowance length is on the

basis of reliability. Oil trap should be installed every 5~7 meters (16.4~23.0ft).

Service Manual 17

Installation

Installation Plate

Type "A" screw

Chassis

Hook

Fixing Installation Plate(Standard Type)

The wall you select should be strong and solid enough to prevent vibration

1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a concrete wall, use anchor bolts.

• Mount the installation plate horizontally by aligning the

centerline using a level.

2. Measure the wall and mark the centerline. It is also important to use caution concerning the location of the installation plate-routing of the wiring to power outlets is through the walls typically. Drilling the hole through the wall for piping connections must be done safely.

CHASSIS

(Grade)

S4 50 105 59 105

SE 65 110 85 110

ABCD

Distance (mm)

Ø70mm

Left rear piping Right rear piping

Installation plate

Ø70mm

18 Multi type Air Conditioner

Installation

NOTICE

Panel Front

Connector

Preparing work for Installation (Artcool Type Only)

Open panel front

1. First, push the front panel backward and lift it up to remove the two screws.

2. The moment of lifting the both lower parts of panel front, you can hear sound this panel came out, In this time panel front is separated

3. After pull down this panel a bit, and separate connecting wire with product.

Remove cover pipe and cover side

1. Remove two screws(for fixing cover pipe)

2. Pull up the cover side of desired connecting direction, then cover side is separated.

3. In case of connecting direction is left or right, path through the hole of cover side.

CAUTION: After removing the pipe hole, cut the burr for safety.

When connecting pipe path through rear wall, don’t remove the hole.

Drain hose junction

1. Remove the rubber stopple of desired direction of drainage.

2. As the following picture, Insert drain hose in the handle of drain pan, and join drain hose and connecting hose.

Pipe hole

Adhesive

Only one

desiring direction

Connecting

Drain

hose

part

rubber cap

Service Manual 19

Installation

Plastic anchors

INSTALLATION GUIDE MAP

10mm

INSTALLATION GU

INSTAIIATION GUIDE MAP

INSTALLATION GUIDE MAP

1. Put an Installation Guide Map on the desired surface.

2. Make a hole with diameter of 6mm and depth of 30-35mm when piercing a screw point.

3. Drive the fore plastic anchors into drilled points.

4. Hang the hole of product at the upper screws. (In this time, Remove the map)

(Falling attention)

5. Check the fixed product with light power.

6. Look at suited horizon by horizontal meter on the horizontal setting line, and Fix lightly the map by adhesive tape.

7. Drill the piercing part for connecting pipe as diameter 50mm. (In case of piercing rear surface)

Refer to No. 5 on this page when making a hole in the wall.

8. First, Drive the two points of the upper parts by screws. (Leave 10mm for hanging product)

9. Drive the lower parts after facing the hole of product with plastic anchors, and fix completely the upper screws.

In case of nothing wrong in the matter, connect the pipe and the wire. (Installation manual reference)

Horizontality

INSTALLATION GUIDE MAP

Plastic anchors

INSTALLATION GUIDE MAP

Hanger hole

(Rear side of

product)

5-7mm

(0.2~0.3")

Indoor

WALL

Outdoor

■ Sticking the installation guide map and fixing Indoor unit

20 Multi type Air Conditioner

■ Drill a hole in the wall

• Drill the piping hole with a ø50mm hole core drill. Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side.

Flaring Work and Connection of Piping

Copper

pipe

90°

Slanted Uneven Rough

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Flaring Work and Connection of Piping

Flaring work

Main cause for gas leakage is due to defect in flaring work. Carry out correct flaring work in the following procedure.

Cut the pipes and the cable.

1. Use the piping kit accessory or the pipes purchased locally.

2. Measure the distance between the indoor and the outdoor unit.

3. Cut the pipes a little longer than measured distance.

4. Cut the cable 1.5m (5.0ft) longer than the pipe length.

Burrs removal

1. Completely remove all burrs from the cut cross section of pipe/tube.

2. Put the end of the copper tube/pipe in a downward direction as you remove burrs in order to avoid dropping burrs into the tubing.

Pipe

Reamer

Putting nut on

• Remove flare nuts attached to indoor and outdoor unit, then

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

Flaring work

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

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

table above.

Outside diameter A

mm inch mm

Ø6.35 1/4 0~0.5 Ø9.52 3/8 0~0.5

Point down

Flare nut

Copper tube

Service Manual 21

Flaring Work and Connection of Piping

Inclined

Inside is shiny without scratches

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Check

1. Compare the flared work with the figure by.

2. If a flared section is defective, cut it off and do flaring work again.

Connecting the Piping

Indoor

1. Prepare the indoor unit's piping and drain hose for installation through the wall.

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

3. Replace only the plastic tubing holder 1, not the holder 2 in the original position.

For right rear piping

1. Route the indoor tubing and the drain hose in the direction of rear right.

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

• Do not connect the cable to the indoor unit.

•

3. Tape the tubing, drain hose, and the connecting cable. Be sure that the drain hose is located at the lowest side of the bundle. Locating at the uper side can cause drain pan to overflow inside the unit.

If the drain hose is routed inside the room, insulate the hose with an insulation material* so that dripping from "sweating"(condensation) will not damage furniture or floors. *Foamed polyethylene or equivalent is recommended.

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

Drain hose

Tape

Connecting pipe

Drain hose

Connecting cable

Drain hose

Connecting cable

Drain hose

Loop

Gas side piping

Liquid side piping

22 Multi type Air Conditioner

4. Indoor unit installation

Drain hose

Connecting

cable

Hook the indoor unit onto the upper portion of the installation plate.(Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) Ensure that the hooks are properly seated on the installation plate by moving it left and right.

Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).

Connecting the piping to the indoor unit and drain hose to drain pipe.

1. Align the center of the pipes and sufficiently tighten the flare nut by hand.

2. Tighten the flare nut with a wrench.

Outside diameter Torque

mm inch kg.m

Ø6.35 1/4 1.8 Ø9.52 3/8 4.2

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

Flaring Work and Connection of Piping

Indoor unit tubing Flare nut Pipes

Open-end wrench (fixed)

Flare nut

Wrench

Indoor unit tubing

Connection pipe

Wrap the insulation material around the connecting portion.

1. Overlap the connection pipe insulation material and the indoor unit pipe insulation material. Bind them together with vinyl tape so that there may be no gap.

2. Wrap the area which accommodates the rear piping housing section with vinyl tape.

3. Bundle the piping and drain hose together by wrapping them with vinyl tape for enough to cover where they fit into the rear piping housing section.

Drain pipe

Connection pipe

Vinyl tape (wide)

Connecting cable

Pipe

Indoor unit drain hose

Vinyl tape(narrow)

Adhesive

Plastic bands

Insulation material

Wrap with vinyl tape

Vinyl tape(narrow)

Wrap with vinyl tape

Indoor unit pipe

Pipe

Drain hose

Vinyl tape(wide)

Service Manual 23

Flaring Work and Connection of Piping

For left rear piping

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

2. Insert the piping, drain hose, and the connecting cable into the piping hole.

Insert the connecting cable into the indoor unit.

• Don't connect the cable to the indoor unit.

• Make a small loop with the cable for easy connection

later.

4. Tape the drain hose and the connecting cables.

5. Indoor unit installation

• Hang the indoor unit from the hooks at the top of the

installation plate.

• Insert the spacer etc. between the indoor unit and the

installation plate and separate the bottom of the indoor unit from the wall.

Connecting the piping to the indoor unit and the drain hose to drain pipe.

1. Align the center of the pipes and sufficiently tighten the flare nut by hand.

1 2

Connecting

cable

Drain pipe

Indoor unit

Spacer

Installation plate

8cm

2. Tighten the flare nut with a wrench.

Outside diameter Torque

mm inch kg.m

Ø6.35 1/4 1.8 Ø9.52 3/8 4.2

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

24 Multi type Air Conditioner

Indoor unit tubing Flare nut Pipes

Open-end wrench (fixed)

Flare nut

Wrench

Indoor unit tubing

Drain hose

Indoor unit drain hose

Adhesive

Vinyl tape

Connection pipe

(narrow)

Wrap the insulation material around the connecting por-

Plastic bands

Insulation material

tion.

1. Overlap the connection pipe heat insulation and the indoor unit pipe heat insulation material. Bind them together with vinyl tape so that there may be no gap.

2. Wrap the area which accommodates the rear piping housing section with vinyl tape.

3. Bundle the piping and drain hose together by wrapping them with cloth tape over the range within which they fit into the rear piping housing section.

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

Flaring Work and Connection of Piping

Connection pipe

Vinyl tape (wide)

Connecting cable

Drain hose

Wrap with vinyl tape

Pipe

Vinyl tape(narrow)

Pipe

Vinyl tape(narrow)

Wrap with vinyl tape(wide)

Indoor unit piping

Indoor unit installation

1. Remove the spacer.

2. Ensure that the hooks are properly seated on the installation plate by moving it left and right.

3. Press the lower left and right sides of the unit against the installation plate until the hooks engage into their slots(clicking sound).

Piping for passage through piping hole

Connecting

cable

Drain hose

Service Manual 25

Flaring Work and Connection of Piping

Panel Front

Connector

■ Panel Assembly(Art Cool Type only)

1. First, Check the side cover assembly exactly, Fix power cord in the bottom groove of cover side left.

2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front

3. Drive two screws.

26 Multi type Air Conditioner

+ 60 hidden pages