LG AS-H246DGM0, S24AHP-ND9, S24AHP-UD9 User Manual

Room Air Conditioner

SVC MANUAL(Exploded View)

MODEL : AS-H246DGM0 (S24AHP-ND9/UD6)

CAUTION

Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

Internal Use Only

http://biz.lgservice.com

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LGE Internal Use Only

Air Conditioner Service Manual

TABLE OF CONTENTS

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

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

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

Symbols Used in this Manual...................................................................................................................10

Indoor Unit................................................................................................................................................10

Product Specifications ................................................................................................................................12

Installation .....................................................................................................................................................13

Selection of the Best Location..................................................................................................................13

Piping Length and Elevation.....................................................................................................................13

How to Fix Installation Plate.....................................................................................................................14

Drill a Hole in the Wall..............................................................................................................................14

Drain hose junction...................................................................................................................................14

Flaring work and connection of piping .......................................................................................................15

Flaring work..............................................................................................................................................15

Connection of piping -- Indoor..................................................................................................................15

Connection of the pipes-Outdoor .............................................................................................................19

Connecting the cable between indoor unit and outdoor unit ...................................................................20

Connect the cable to the Indoor unit. .......................................................................................................20

Connect the cable to the outdoor unit ......................................................................................................21

Checking the drainage and forming the pipings........................................................................................22

Checking the drainage .............................................................................................................................22

Form the piping ........................................................................................................................................22

AIR PURGING ................................................................................................................................................23

Air purging................................................................................................................................................23

Air purging with vacuum pump.................................................................................................................23

TEST RUNNING .............................................................................................................................................25

Operation .......................................................................................................................................................26

Function of Controls .................................................................................................................................26

Display Function ......................................................................................................................................30

Self-diagnosis Function............................................................................................................................30

Remote Control Operations......................................................................................................................31

Disassembly ..................................................................................................................................................32

Indoor Unit................................................................................................................................................32

Schematic Diagram.......................................................................................................................................35

Electric Control Device.............................................................................................................................35

Wiring Diagram.........................................................................................................................................36

Components Location ..............................................................................................................................37

Troubleshooting Guide.................................................................................................................................39

Refrigeration Cycle Diagram ....................................................................................................................39

2-way, 3-way Valve .................................................................................................................................40

Cycle Parts...............................................................................................................................................46

Electronic Parts ........................................................................................................................................47

Exploded View...............................................................................................................................................54

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LGE Internal Use Only

LG Model Name

2003

12 - 345678910

Code Type Code of Model Meaning

1 Producing Center, A~Z L: Chang-won R22 N: India

Refrigerant A: Chang-won R410A Z: Brazil

C: Chang-won R407C D: Indonesia T: China M: Mexico K: Turkey R22 V: Vietnam E: Turkey R410A S: Out Sourcing H: Thailand

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

3 Cooling/Heating/Inverter A~Z C: Cooling only

H: Heat pump X: C/O + E/Heater Z: H/P + E/Heater

V: AC Inverter C/O N: AC Inverter H/P Q: DC Inverter C/O W: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating Capacity

Ex. "09" → 9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase

A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase 5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase 6: 220-240V/50Hz E: 265V, 60Hz 7: 110V, 50/60Hz F: 200V, 50/60Hz 8: 380-415V/50Hz 9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of Unit

Ex. 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 A Basic+4Way B Plasma Filter C Plasma Filter+4 Way D Tele+LCD E Tele+LCD+Nano plasma+4Way F Nano Plasma F+(A/changeove)+A/clean+Low A G Nano Plasma F+(A/changeove)+A/clean+4way+Low A H Tele+LED+4way I Internet J Plasma F+4Way+Oxy generator K Nano Plasma F+(A/changeove)+A/clean L Nano Plasma F+(A/changeove)+A/clean+4way M Nano Plasma F+(A/changeove)+A/clean+PTC N Nano Plasma F+(A/changeove)+Autoclean+4way+PTC P Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Q Negative ION+A/Clean R (Nano)Plasma+Negative ION+A/Clean S 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean

T

Nano Plasma F+4Way+(A/changeove)+A/clean+ U

R Mirror W White B Blue D Wood M Metal C Cherry

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LGE Internal Use Only

LG Model Name

2004~

12 - 345678910

Code Type Code of Model Meaning

1 Producing Center, A~Z

L Chang_won R22 A Chang_won R410A C Chang_won R407C T China K Turkey R22 E Turkey R410A H Thailand

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

Refrigerant

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

3 Cooling/Heating/Inverter A~Z C: Cooling only

H: Heat pump X: C/O + E/Heater Z: H/P + E/Heater

V: AC Inverter C/O N: AC Inverter H/P Q: DC Inverter C/O W: DC Inverter H/P

4, 5 Capacity 0~9 Cooling/Heating Capacity

Ex. "09" → 9,000 Btu/h

6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase

A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase

3: 208-230V/60Hz C: 575V, 50Hz, 3Phase 5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase 6: 220-240V/50Hz E: 265V, 60Hz 7: 110V, 50/60Hz F: 200V

CHASSIS Look

D K

L G M N D P

Division Panel Type(Deluxe) Fighting 'Look'

(LG1) (LG2)-SEMI PANEL OEM1 OEM2 Panel Type(Deluxe) LG3

, 50/60Hz 8: 380-415V/50Hz 9: 380-415V/60Hz

7 Chassis A~Z Name of Chassis of Unit

Ex. 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.

R Mirror W White B Blue D Wood M Metal C Cherry

S4/S5

S6 SQ SR

ST

Basic A Basic+4Way B Plasma Filter C Plasma Filter+4 Way D Tele+LCD E Tele+LCD+Nano plasma+4Way F NBF F+(A/changeove)+A/clean+Low A G NBF F+(A/changeove)+A/clean+4way+Low A H Tele+LED+4way I Internet J Plasma F+4Way+Oxy generator K NBF F+(A/changeove)+A/clean L NBF F+(A/changeove)+A/clean+4way M NBF F+(A/changeove)+A/clean+PTC N NBF F+(A/changeove)+Autoclean+4way+PTC P NBF F+(A/changeove)+A/clean+4way+Low A+PTC Q (Nano)Plasma+ION+A/Clean S 4way+(Nano)Plasma F+

Negative ION+Healthy dehumidification

+A/Clean T Nano Plasma F+4Way+(A/changeove)+A/clean+Oxy generator U 4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean+Oxy generator

V Dry contact W Wire remocon 8

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LGE Internal Use Only

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.

■ 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 a loose socket.

Always use the power plug and socket with the ground terminal.

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

Install the panel and the cover of control box securely.

.Do not modify or extend the power cord.

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

■ Installation

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LGE Internal Use Only

Safety Precautions

Do not install the product on a defective installation stand.

Be sure the installation area does not deteriorate with age.

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

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

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

•

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

Be cautious when unpacking and installing the product.

For installation, always contact the dealer or an Authorized service center

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

Do not install, remove, or re-install the unit by yourself.

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

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LGE Internal Use Only

Safety Precautions

■ Operation

Do not turn the air-conditioner ON or OFF by plugging 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 the outlet. Do not touch it with wet hands.

Do not place a heater or other appliances near the 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 electric shock.

• There is risk of fire or failure of product.

Wax

Thinner

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LGE Internal Use Only

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

Install the drain hose to ensure that water is drained 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 transport

the air conditioner.

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

■ Installation

90˚

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

Be cautious that water could not enter the product.

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

Safety Precautions

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LGE Internal Use Only

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

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

• There is risk of fire, electric shock, or damage to the plastic 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 through the air inlet or outlet while the air conditioner is plugged in.

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

personal injury.

■ Operation

Wax

Safety Precautions

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LGE Internal Use Only

Dimensions

Installation plate

D

H

W

W mm 1209

H mm 346

D mm 205

Model

Dimension

24k Btu

Indoor Unit

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.

NOTICE

Symbols Used in this Manual

Dimensions

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LGE Internal Use Only

MODEL

DIM

W

L7 L6 L8 L9

D

L1

L2

L3

L10L11

L4L5

H

Gas side 3-way valve

Liquid side 3-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

24k Btu

• 24K Series

- 12 -

LGE Internal Use Only

Model Name

Item Unit

Cooling Capacity

kW

Heating Capacity

Moisture Removal l/h

Power Source Ø, V, Hz

Air Circulation

Indoor

m3/min

Outdoor

Noise Level

Indoor

dB (A)±3

Outdoor

Input

Cooling

W

Heating

Running

Cooling

A

Current

Heating

E.E.R. Cooling

W/W

C.O.P Heating

Motor Output

Indoor

W

Outdoor

Dimensions

Indoor

mm

(W x H x D)

Outdoor

Net. Weight

Indoor

kg

Outdoor

Refrigerant

(R410A)

g

(R22)

Airflow Direction Control (Up & Down)

Airflow Direction Control (Left & Right)

Chaos Wind

Timer

Self Diagnosis

Remocon Type

Service Valve

Liquid

inch(mm)

Gas

Sleeping Operation

Drain Hose

Connecting Cable

Power Cord

Product Specifications

Table-1

7.5

7.7

3.8

1Ø, 220V-240V, 50Hz

20/21.5

58

48

58

2,650

2,750

12.0

2.83

2.80

55

88

1,209*346*205

870*800*320

18

75

2,200

-

O

24Hr On/OFF

O

L.C.D wireless

3/8"(9.52)

5/8"(15.88)

O

1.5mm2x 3, 0.75mm2x 2

2.5mm2x 3

AS-H246D SERIES

Installation

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 "A". The unit should be installed as high on the wall as possible, allowing a minimum of "B" from ceiling.

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

Outdoor unit

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

• Ensure that the space around the back and sides is more than 30cm. The front of the unit should have more than 70cm of space.

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

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

• Select a place where the warm air and noise from the air conditioner do not disturb neighbors.

Rooftop Installations:

• If the outdoor unit is installed on a roof structure, be sure to level the unit. Ensure the roof structure and anchoring method are adequate for the unit location.

• Consult local codes regarding rooftop mounting.

More than "B"

More than

"A"

More than 2.3m

More than

"A"

• 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.

Grade

Clearance(cm)

AB

24K 30 10

Pipe Size

Capacity

(Btu/h)

GAS LIQUID

Max.

Length

A (m)

Additional

Refrigerant

(g/m)

Max.

Elevation

B (m)

Standard

Length

(m)

24k 5/8"(Ø15.88) 3/8"(Ø9.52) 7.5 7 20 40

If case more than 5m

Outdoor unit

Indoor unit

A

B

Outdoor unit

Indoor unit

A

B

A

Oil trap

Outdoor unit

Indoor unit

B

I

Selection of the Best Location

Piping Length and Elevation

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

More than 30cm More than 30cm

More than 60cm

More than 70cm

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LGE Internal Use Only

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LGE Internal Use Only

Installation

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

1. Mount the installation plate on the wall with four 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.

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

• Open the Front Grille.

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

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

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

• Close the Front Grille.

How to Fix Installation Plate Drill a Hole in the Wall

Drain hose junction

• Remove the rubber stopple in the desired drain direction.

• Insert drain hose into the handle of drain pan, and join drain hose and connecting hose according to the figure by.

5-7mm

(3/16"~5/16")

Indoor

WALL

Outdoor

Connecting

part

Adhesive

Drain hose

Only the desired direction

Type "A" screw

Installation Plate

Installation plate

Left rear piping Right rear piping

C

D

B

A

Chassis

Hook

ABCD

SD(24k) 120 110 43 43

CHASSIS

(Grade)

Distance (mm)

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LGE Internal Use Only

Flaring work and connection of piping

Flaring work

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

Cut the pipes and the cable.

• Use the piping kit accessory or pipes purchased locally.

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

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

• Cut the cable 1.5m longer than the pipe length.

Check

• Compare the flared work with figure below.

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

• Preparing the indoor unit's piping and drain hose for instal-

lation through the wall.

• Remove the plastic tubing retainer(see illustration below)

and pull the tubing and drain hose away from chassis.

• Replace the plastic tubing holder in the original

position.(Optional)

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

Burr removal

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

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

Putting nut on

• Remove flare nuts attached to indoor and outdoor unit, then put them on pipe/tube having completed burr removal. (not possible to put them on after flaring work)

Flaring work

• Firmly hold copper pipe in a die in the dimension shown in the table above.

Copper

pipe

90°

Slanted Uneven Rough

Bar

Copper pipe

Clamp handle

Red arrow mark

Cone

Yoke

Handle

Bar

"A"

Inclined

Inside is shiny without scratches

Smooth all round

Even length

all round

Surface

damaged

Cracked Uneven

thickness

= Improper flaring =

Pipe

Reamer

Point down

Flare nut

Copper tube

Drain hose

mm inch mm

Ø6.35 1/4 0~0.5

Ø9.52 3/8 0~0.5

Ø12.7 1/2 0~0.5

Ø15.88 5/8 0~1.0

Ø19.05 3/4 1.0~1.3

Outside diameter A

Connection of piping -- Indoor

When install, make sure that the remaining parts must be removed clearly so as not to damage the piping and drain hose, especially power cord and connecting cable.

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LGE Internal Use Only

mm inch kg.m Ø6.35 1/4 1.8 Ø9.52 3/8 4.2 Ø12.7 1/2 5.5

Ø15.88 5/8 6.6 Ø19.05 3/4 6.6

Outside diameter Torque

Flaring work and connection of piping

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

Drain hose

Connecting

cable

Vinyl tape(narrow)

Connection pipe

Connecting cable

Vinyl tape (wide)

Wrap with vinyl tape

Indoor unit pipe

Pipe

Plastic bands

Insulation material

Vinyl tape(narrow)

Adhesive

Drain pipe

Indoor unit drain hose

Wrench

Indoor unit tubing

Open-end wrench (fixed)

Connection pipe

Flare nut

Indoor unit tubing Flare nut Pipes

Connecting pipe

Connecting cable

Tape

Drain hose

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.

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

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 upper side can cause drain pan to overflow inside the unit.

NOTE: 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.

Indoor unit installation

• 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 pipings to the indoor unit and drain hose to drain pipe.

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

• Tighten the flare nut with a wrench.

• When extending the drain hose at the indoor unit, install the

drain pipe.

Wrap the insulation material around the connecting portion.

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

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

For right rear piping

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LGE Internal Use Only

Flaring work and connection of piping

• 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.

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

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

• Tighten the flare nut with a wrench.

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

Wrap the insulation material around the connecting portion.

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

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

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.

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.

Tape the drain hose and the connecting cable.

• Connecting cable

Drain pipe

Connecting cable

Wrap with vinyl tape

Drain hose

Pipe

Vinyl tape(wide)

Indoor unit tubing Flare nut Pipes

Installation plate

Spacer

Indoor unit

8cm

Plastic bands

Insulation material

Vinyl tape

Adhesive

Drain hose

Indoor unit drain hose

(narrow)

Wrench

Indoor unit tubing

Connection pipe

Flare nut

Open-end wrench (fixed)

For left rear piping

mm inch kg.m Ø6.35 1/4 1.8 Ø9.52 3/8 4.2 Ø12.7 1/2 5.5

Ø15.88 5/8 6.6 Ø19.05 3/4 6.6

Outside diameter Torque

LG AS-H246DGM0, S24AHP-ND9, S24AHP-UD9 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual