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TITAN LG Air conditioning Academy Air Conditioning Academy

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TITAN

LG Air conditioning Academy

Air Conditioning Academy

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Contents

1. Introduction1.1 What is TITAN ?

1.2 Product Shape

1.3 Product background / Comparison

1.4 Main Usage / System layout

1.5 STP / Market Analysis

1.6 Nomenclature

2. Line Up2.1 Line Up

2.2 Specification

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Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 2

3. USP3.1 USP

4. General Information4.1 Item Inside Product Box

4.2 Accessories Information

5. Product Details5.1 Cycle Diagram

5.2 Part & Dimensions

5.3 Control Parts

5.4 Wiring Diagram : Indoor Unit

5.5 wiring Diagram : Outdoor unit

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6. Installation6.1 Installation Scene

6.2 Installation of Outdoor Unit

6.3 Installation of Indoor Unit

6.4 Piping & Wiring of Outdoor Unit

6.5 Piping & Wiring of Indoor Unit

6.6 Accessories Installation

6.7 System Set-Up

7. Start up7.1 Start up

7.2 Checking point

7.3 Operation

7.4 Special Functions

Contents

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Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 3

7.4 Special Functions

8. Control logic8.1 Basic Features

8.2 Compressor control

8.3 Healthy Humidification

8.4 Hot Start

8.5 EEV Control

8.6 Defrost Control

8.7 4-Way Valve

8.8 Other Operations

8.9 PBC Details

9. Troubleshooting9.1 Error code

9.2 Trouble shooting

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1.1 What is Titan ? 1. Introduction

It is Wall Mounted Type of Air Conditioner with low Noise and exceptional Performance &

Healthy Living

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 4

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1.2 External Appearance

Indoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 5

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1.2 External Appearance

Indoor

Titan-Premium Titan-Standard Air Cruiser

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 6

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1.2 External Appearance 1. Introduction

Outdoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 7

UMUE

LS-C246C*U1

LS-H246C*U1LS-H186C*U1

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1.3 Product Background 1. Introduction

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 8

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1.4 System Layout 1. Introduction

LG TITAN

More Quick Cooling !!

More Even Cooling !!

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 9

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1.5 Customer Insight / MOT 1. Introduction

No1 Basic Attribute. Regional Suitable Luxury Design and Smart Technology

Brand Follower

Comfort Seeker

Premium

Seeker

(10.4%)

Customer Insight

Powerful Performance

““““Most strong needs is

powerful cooling, but

hard to differentiate.””””

• Surround Cooling- IAQ Unit

(IAQ:Indoor Air Quality)

• 10m Air Flow- Aerodynamic Tech.

• Dynamic Double Big Vane- Optimized Air Flow System

Healthy Living • Allergy Care Plasma

Key Technology

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 10

Strict Shopper

Braggart

Rational

Shopper

(47%)

++++

Convenience

• Smart Clean Indicator• Ez-Remote Controller• Magic Display• Easy Installation Design

Healthy Living

Asthma & Allergy Pain

• Allergy Care Plasma- Cyclotron Plasma Filter

& Allergy Filter

• Sterilized HumidificationModule• Selectable Swing Mode- Direct/Indirect Air Flow

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1.6 Nomenclature 1. Introduction

L S – C 24 6 C 9 U 1

C : SCChassis Name

Look/Color

Development Seq.

FunctionU : Plasma + Allergy

Circulator Model Name : LSCA04GAVB0

9 : Normal Type

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 11

L : Changwon R - 22Ref/Production Site

- : Set N : Indoor U : Outdoor C : Satellite Unit Unit

C : Cooling Only H : Heat Pump Model Type

Ex : 24 : 24,000 Btu/hr 18 : 18,000 Btu/hr 04: Air Flow (CMM) Cooling Capacity

2 : 220V/60Hz/1Φ 6 : 220~240/50Hz/1Φ

G : 220~240/50,60/1Φ

Electric Standard

-.Volt

-.Hertz

-.Phase

S : Single Split Wall Mounted Type Of Aircon

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2.1 Line-up 2. Line-up

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 12

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2.2 Specification 2. Line-up

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 13

Note: Refer PDB for more details of all the models.

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3.1 USP

3.1.1 Virus & Allergy Safe filter

3. USP

LG electronics has newly developed the Virus & Allergy Safe Filter, certified by BAF (British Allergy

Foundation). The new filter can eliminate the house dust mite allergens, and viruses including H1N1

and help you breathe easier, and feel healthier.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 14

Recognized by Allergy UK, LG’s leading technology will keep your home healthy and comfortable..Allergy Care is certified by Allergy UK for your better living environment.

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3.1 USP 3. USP

The Titan fan assembly is designed for the low noise operation. In this new configuration, the vanes can create very quiet and comfort air-flow.

3.1.2 Quiet Operation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 15

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3.1 USP 3. USP

Skew Fan

With Skew Fan, it improves air flow and reduces noise

3.1.2 Quiet Operation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 16

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3.1.3 10M Power Flow

3.1 USP 3. USP

10M Power Flow

LG TITAN air conditioner blows air to 10 meters distance. No matter how large your room is, TITAN willmeet your satisfaction.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 17

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3.1 USP 3. USP

TITAN is highly reliable, even under extreme conditions (15~60'c), sandstorms and 24 hr operation.

3.1.4 Reliable Tropical Operation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 18

Operation Guarantee under 187V ~ 253V

Operation Guarantee under Rated voltage(220V/60Hz, 230V/50Hz)

* 54º operation is basic performance of All LG air conditioner ,

but MarComm. will be prepared in 2010

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3.1.5 Twin Rotary

3.1 USP 3. USP

TITAN employs a Twin Rotary Compressor, which is a highly effective solution for reducing

noise and vibration while increasing operation efficiency.

Twin Rotary Compressor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 19

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3.1.6 14 FPI

3.1 USP 3. USP

TITAN has a 14 FPI (low density 14 fins per inch) outdoor unit that protects the air conditioning

unit from dust particles even in the desert areas.

14 FPI – 50Hz Only

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 20

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3.1.7 Surround Cooling

3.1 USP 3. USP

The TITAN main unit itself does an excellent job of cooling, but together with the TITAN air cruiser unit, you can cool the air 40% faster and disperse cool air 70% more evenly throughout the room.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 21

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3.1.7 Surround Cooling

3.1 USP 3. USP

The TITAN main unit itself does an excellent job of cooling, but together with the TITAN air cruiser unit, you can cool the air 40% faster and disperse cool air 70% more evenly throughout the room.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 22

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3.1 USP

3.1.8 Pure Mist

Pure Mist

- In rooms that need more humidity, Titan Air Cruiser provides the healthiest moisture using water

plasma sterilization. Water plasma creates OH radical, H2O2, and Electric Potential to eliminate

99.9% of the bacteria in the water. Feel the difference in your home with Titan Air Cruiser!

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 23

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3.1 USP

3.1.9 Comfortable Relative humidity range

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 24

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3.1.10 Ez – Remote Controller

3.1 USP 3. USP

User Friendly & Modern Design and Easy use!!

User Friendly Design- Comfortable to grab

- Sliding type

Wide LCD

• Neo-Plasma• Smart Clean(for KLEBIO)

On/Off Button

Temperature setting

Display Operation Mode

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 25

Easy Use- Bigger size button

- Highlight some buttons

with different colors

- Easy to recognize functions

with graphics

Display Operation Mode

Set Air Flow(Auto Swing)

Up/Down

Left/Right

Jet Cool

Timer

Room Temperature

Energy-savingCooling Mode

Display Screen Brightness

• Auto clean

• Function Setting

(for KLEBIO)

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3.1 USP 3. USP

3.1.11 Anti – Corrosion Gold Fin™

Anti – Corrosion Gold Fin™

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 26

Feature : Gold Coated Anticorrosive Fin.

Mechanism : Aluminum Fins are treated with Anticorrosive epoxy Treatment.

Result : Increase the life of Heat Exchanger by reducing surface corrosion.

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3.1.12 Comfort Swing

3.1 USP 3. USP

Comfort Swing

- For customers who are sensitive to the direction of the air flow, LG Titan air conditioners feature

dynamic double vanes, which blow air in 6 different horizontal channels and 5 different vertical

swing mode.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 27

Various swing modes can be selected with the remote controller. With LG TITAN, you can make

fine adjustments to create the exact airflow you want.

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3.1.13 Dynamic Double Vane

3.1 USP 3. USP

- LG Titan air conditioners create optimized air flow for cooling and heating modes using dynamic

double vanes.

Dynamic Double vane

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 28

- In the cooling mode. Dynamic Double Vanes blow the air horizontally using bottom guide vane.

- In heating mode, the Dynamic Double Vanes push air downwards with upper vane to provide even

distribution of warm air, offering optimal cooling and heating performance.

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3.1.14 Titan Surround Cooling Perfomance

3.1 USP 3. USP

LG TITAN Air Conditioning Cooling Speed

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 29

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4.1 Item Inside Product Box

4.1.1. Indoor Box

4. General Information

1 Indoor Unit

2 Owners Manual

3 Installation Manual

4 Remote Controller

5 Screw

4.1.2. Outdoor Box

1 Outdoor Unit

2 Anti Vibration Rubber

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 30

2 Anti Vibration Rubber

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4.2 Accessories 4. General Information

For End-user

1. Remote Controller

2. Battery

3. Owners Manual

For Installer

1. Installation Plate

2. Screw

3. Drain Hose

4. Installation Manual

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 31

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5.1.1 Cooling Only

5.1 Cycle Diagram 5. Product Details

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 32

Note: Refer PDB for all the models.

LOC Description PCB Connector

Th1 Thermistor for indoor air temperatureCH-TH1

TH2 Thermistor for evaporating temperature

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5.1.2 Heat Pump

5.1 Cycle Diagram 5. Product Details

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 33

LOC Description PCB Connector

Th1 Thermistor for indoor air temperatureCH-TH1

TH2 Thermistor for evaporating temperature

Note: Refer PDB for all the models.

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5.2 Dimensions 5. Product Details

Indoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 34

NO Part Name

1 Front panel

2 Display & signal receiver

3 Air suction grille

4 Knockout hole

5 Installation Plate

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5.2 Dimensions 5. Product Details

NO Part Name

1 Air discharge Grille

2 Gas Pipe Connection Port

3 Liquid Pipe Connection Port

4 Control Box

5 Earth Screw

Outdoor – UM Chassis

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 35

Note: Refer PDB for the dimensions all the models.

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5.3 Control Parts 5. Product Details

OutdoorIndoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 36

Note: Refer PDB for PCB Details of all the models.

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5.4 Wiring Diagram: Outdoor 5. Product Details

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 37

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5.5 Wiring Diagram: Indoor 5. Product Details

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 38

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6.1 Installation Scene 6. Installation

Connecting Outdoor Unit, Indoor Unit Refrigerant Pipe

More than100

INDOOR UNIT

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 39

OUTDOOR UNIT

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6.2.1 Safety Precautions

6. Installation6.2 Installation of Outdoor

WARNING

Always perform grounding Don`t use a power cord, a plug or

a loose socket which is damaged.For installation of the product,

always contact the service center

or professional installation agency. Otherwise, it may cause electrical shock.

Otherwise, it may cause a fire or electrical shock.

Otherwise, it may cause a fire,electrical shock, explosion or injury.

Always install a current leakage

breaker and a dedicated switching

board.

Securely attach the electrical

cover to indoor and pipe cover to

outdoor unit.

Do not keep or use flammable

gases or combustibles near the air

conditioner.

This symbol indicates the possibility of death or serious injury.

Installation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 40

board.

If the electrical part cover to indoor unit and pipe cover to outdoor unit are not attached securely, it could result in a fire or electric shock due to dust, water, etc.

No installation may cause a fire and electrical shock.

Otherwise, it may cause a fire, or the failure of product.

outdoor unit. conditioner.

Operation

Do not chare the outlet with other

appliances.

Do not use the damaged power

cord.Do not modify or extend the power

cord randomly.

It will cause an electric shock or a fire due to heat generation.

Otherwise, it may cause a fire or electrical shock.

Otherwise, it may cause a fire,electrical shock.

Take care so that the power cord

May not be pulled during operation.

Unplug the unit if strange sound,

smell, or smoke comes from it.Keep the flames away.

Otherwise, it may cause a fire or electrical shock.

Otherwise, it may cause electrical shock or a fire.

Otherwise, it may cause a fire.

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6.2.1 Safety Precautions

6. Installation6.2 Installation of Outdoor

CAUTION

Install the drain hose to ensure that drain can be

securely done.

Install the product so that the noise or hot wind from

the outdoor unit may not cause any damage to the

neighbors. Otherwise, it may cause water leakage. Otherwise, it may cause dispute with the neighbors.

Keep level parallel while installing the product.

Otherwise, it may cause the failure of product. Otherwise, it may cause vibration or water leakage.

Always inspect gas leakage after the installation and

repair of product

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

Installation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 41

Otherwise, it may cause the failure of product. Otherwise, it may cause vibration or water leakage.

Operation

Avoid excessive cooling and perform ventilation

sometimes.Use a soft cloth to clean. Do not use wax, thinner, or

a strong detergent.

Otherwise, it may do harm to your health. The appearance of the air conditioner may deteriorate, change color, or develop surface flaws.

Do not use the appliance for special purposes such as

Preserving animals vegetables, precision machine, or

art articles.

Do not place obstacles around the flow inlet or outlet

Otherwise, it may damage your properties.

Otherwise, it may cause failure of appliance or an accident.

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

Do not install the product where it will be exposed to

Sea wind (salt spray) directly.

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6.2.2 Installation Parts

6. Installation

Installation Parts Supplied By Company

6.2 Installation of Outdoor

Installation plate Type “A” screw

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 42

Type “B” screw Type “C” screw Remote control holder

The feature can be changed according a type of model

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6.2.3 Installation Tools

6. Installation

Installation Tools Recommended By Company

6.2 Installation of Outdoor

Figure Name Figure Name

Screw driver Multi-meter

Electric drill Hexagonal wrench

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 43

Measuring tape, Knife Ammeter

Hole core drill Gas-leak detector

SpannerThermometer,

Level

Torque wench Flaring tool set

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6.2.4 Installation Of Outdoor

6. Installation

Installation Tool

1.Remove the tubing cover from the unit by loosening the screw.

6.2 Installation of Outdoor

Terminal Block

Cover control

Tubing Cover

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 44

2. Align the center of the piping and sufficiently

tighten the flare nut by hand.

3. Finally, tighten the flare nut with torque wrench

until the wrench clicks.

• When tightening the flare nut with torque wrench,

ensure the direction for tightening follows the arrow

on the wrench.

②②②②

①①①①

Tubing Cover

③③③③Torque wrench

Gas side piping(Bigger diameter)

Liquid side piping(Smaller diameter)

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6.2.5 Flaring Work

6. Installation6.2 Installation of Outdoor

Flaring Work

Main cause for gas leakage is due to defect of 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.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 45

outdoor unit.

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

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

Burrs removal1. Completely remove all burrs from the cut cross

section of pipe/tube.

2. While removing burrs put the end of the copper

tube/pipe in a downward direction while

removing burrs location is also changed in order

to avoid dropping burrs into the tubing.

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6.2 Installation of Outdoor 6. Installation

6.2.6 Flaring Work

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 finishing flare work)

Flaring Work

Flaring work1. Firmly hold copper pipe in a bar with the dimension shown in

below table below.

2. Carry out flaring work with the flaring tool.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 46

2. Carry out flaring work with the flaring tool.

Check1. Compare the flared work with the figure by.

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

Outside diameter A

inch

Ø6.35 1/4 1.1~1.3

Ø9.52 3/8 1.5~1.7

Ø12.7 1/2 1.6~1.8

Ø15.88 5/8 1.6~1.8

Ø19.05 3/4 1.9~2.1

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6. Installation6.2 Installation of Outdoor

6.2.7 Settlement of Outdoor Unit

Settlement of outdoor unit1. Anchor the outdoor unit with a bolt and nut

(ø10mm) tightly and horizontally on a concrete

or rigid mount.

2. When installing on the wall, roof or rooftop,

anchor the mounting base securely with a nail

Bolt

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 47

anchor the mounting base securely with a nail

or wire assuming the influence of wind and

earthquake.

3. If the vibration of the unit is transmitted to the

hose, secure the unit with an anti-vibration rubber. Tubing connection

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6. Installation

6.2.8 Installation Guide at the Seaside

Selecting the location (Outdoor Unit)1) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided.

Install the outdoor unit on the opposite side of the sea wind direction.

6.2 Installation of Outdoor

Sea wind Sea wind

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 48

Sea wind Sea wind

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6. Installation6.2 Installation of Outdoor

6.2.8 Installation Guide at the Seaside

2) In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind.

• It should be strong enough like concrete to prevent the

sea wind from the sea.

• The height and width should be more than 150% of the

outdoor unit.

• Keep more than 700mm of space between outdoor unit

Sea wind

Windbreak

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 49

3) Select a well-drained place.

1.If you can’t meet above guide line in the seaside installation, please contact LG Electronics for the additional

anticorrosion treatment.

2. Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using

water.

• Keep more than 700mm of space between outdoor unit

and the windbreak for easy air flow.

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6.3.1 Selection of best location

6. Installation6.3 Installation of Indoor

Best location

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 50

1. There should not be any heat or steam near the unit.

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

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

4. Do not install near a doorway.

5. Ensure that the interval between a wall and the left (or right) of the unit is more than 100mm. The unit should

be installed as high as possible on the wall, allowing a minimum of 200mm from ceiling.

6. Use a metal detector to locate studs to prevent unnecessary damage to the wall

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6. Installation

6.3.2 Fixing Installation Plate

Fixing Installation Plate

6.3 Installation of Indoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 51

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 Horizontal meter.

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.

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6.3.3 Hole Drilling

6. Installation

Drill a Hole in the Wall

6.3 Installation of Indoor

• Drill the piping hole with a ø70mm hole

core drill. Drill the piping hole at either

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 52

core drill. Drill the piping hole at either

the right or the left with the hole slightly

slanted to the outdoor side.

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6.3 Installation of Indoor6. Installation

Check1. Compare the flared work with the figure by.

2. If a flared section is defective, cut it off and

do flaring work again.

2.8 Installation of Indoor Unit

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 53

1.Hook the indoor unit onto the upper portion

of the installation plate.( engage the three

hooks at the 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

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6. Installation

2.Unlock the tubing holder from the

chassis and mount between the chassis

and the wall in order to separate the

bottom side of the indoor unit from the wall

3. Insert the connecting cable through the bottom side of indoor unit and connect the cable

(You can see detail contents in 'Connecting the cables' section)

(1) Open the Front Grille

(2) Support the Front Grille with supporter

6.3 Installation of Indoor

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 54

(2) Support the Front Grille with supporter

(3) Open the Control Cover

(4) Connect the connecting cable

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6.4.1 IAQ (Indoor Air Quality) Unit

6. Installation6.4 Installation of Circular

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 55

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6.4.2 Installation Parts

6. Installation6.4 Installation of Circular

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 56

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6.4.3 Installation Tools

6. Installation6.4 Installation of Circular

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 57

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6.4.4 Location Selection

1. There should not be any heat or steam near the unit.

2. Select a place where there are no obstacles around

of the unit.

3. Do not install near a doorway.

4. Ensure that the interval between a wall and the left

(or right) of the unit is more than 400mm.

The unit should be installed on the wall, allowing a

minimum of 1500mm from floor

5. Use a metal detector to locate studs to prevent

unnecessary damage to the wall.

6. Installation6.4 Installation of Circular

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 58

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6. Installation6.4 Installation of Circular

6.4.5 Fixing Installation Plate

1. 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.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 59

2. The wall you select should be strong

and solid enough to prevent vibration

• Mount the installation plate on the wall

with type "A" screws. If mounting the

unit on a concrete wall, use anchor bolts.

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6. Installation6.4 Installation of Circular

6.4.6 Drill a Hole in the Wall

For stability of the unit, drill a hole at the marked

point and fix the unit by screw.

• After installing the unit, make a hole in marked

position

• Mount the unit with type "A" screw and ring

washer

6.4.7 Maintenance and Service

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 60

Water hotter than 40°C. It may cause deformation and discoloration.

Volatile substances. They may damage the surface of the IAQ (Indoor Air Quality) Unit.

Filter set (Pre Mesh , Allergy and Deodorization Filter) behind the doors should be checked and

cleaned once in every 2 weeks or more often it necessary.

Replacement and cleaning recommendations for filters :

6.4.7 Maintenance and Service

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6.5 Piping & Wiring: Outdoor Unit 6. Installation

1.Remove the tubing cover from the unit by loosening the screw.

②②②②

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 61

2. Align the center of the piping and sufficiently

tighten the flare nut by hand.

3. Finally, tighten the flare nut with torque

wrench until the wrench clicks.

• When tightening the flare nut with torque

wrench, ensure the direction for tightening

follows the arrow on the wrench. ③③③③

②②②②

①①①①

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6.6 Piping & Wiring: Indoor Unit 6. Installation

(1) Pull the screw cap at the

bottom of the indoor unit

(2) Remove the chassis cover

from the unit by loosing

3screws

(Be careful not to scratch

Horizontal Vane Main!)Chassis Cover

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 62

(3) Pull back the tubing holder.

(4) Remove pipe port cover

and position the tubing.

Backwards

Tubing holder

Left

Pipe Port

Right

Indoor unit back side view

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Good case• Press on the tubing cover and unfold

the tubing to downward slowly. And

then bend to the left side slowly.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 63

Bad case• Following bending case from right to

left directly may cause damage to the

tubing.

4. Tape the tubing pipe, drain hose and the connection cable. Be sure that the drain hose is located at the

lowest side of the bundle. Locating at the upper side can cause overflow from the drain pan through the inside

of the unit.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

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.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 64

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

1. Align the center of the pipes and sufficiently

tighten the flare nut by hand

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6.6 Piping & Wiring: Indoor Unit 6. Installation

2. Tighten the flare nut with a wrench 3. When needed to extend the drain hose of indoor

unit, assembly the drain pipe as shown on the

drawing

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 65

Outside diameter A

inch

Ø6.35 1/4 1.8~2.5

Ø9.52 3/8 3.4~4.2

Ø12.7 1/2 5.5~6.5

Ø15.88 5/8 6.3~8.2

Ø19.05 3/4 9.9~12.1

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6.6 Piping & Wiring: Indoor Unit 6. Installation

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

2. Wrap the area which accommodates the

rear piping housing section with vinyl tape.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 66

them together with vinyl tape so that there may be

no gap.

3. Bundle the piping and drain hose together

by wrapping them with vinyl tape sufficient

enough to cover where they fit into the rear

piping housing section.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Finishing the indoor unit installation1. Mount the tubing holder in the original position.

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).

4. Finish the assembly by screwing the unit to

the installation plate by using two pieces of

type "C" screws. And assemble the chassis.

Type ‘C’ screw

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 67

type "C" screws. And assemble the chassis.

5. Reinstall the chassis cover in Original place

Installation of filters (Optional)1. Pull out the [Allergy Filter + Triple Filter] from

the separately packed plastic bag.

2. Detach the two into tapes from the filter.

3. Insert the filter into the filter case.

4. Detach two into tapes from the plasma filter.Allergy free filter + Triple filter Plasma filter

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6.6 Piping & Wiring: Indoor Unit 6. Installation

IndoorConnect the cable to the indoor unit by connecting the wires to the terminals on the control board individually

according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal

No. are the same as those of the indoor unit.)

If a power plug is not used, provide a circuit breaker between power

source and the unit as shown.

The earth wire should be longer than the common wires.

When installing, refer to the circuit diagram on the front panel.

Connect the wires firmly so that they may not be pulled out easily.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 68

Connect the wires firmly so that they may not be pulled out easily.

Connect the wires according to color codes, referring to the wiring

diagram.

Power Code

Capacity W (kBtu/h) 5 270 (18) 7 030 (24)

Normal cross

sectional area1.5 2.5

Unit Indoor Indoor

Cable Type H05VV-F H05VV-F

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6.6 Piping & Wiring: Indoor Unit 6. Installation

The power cord connected to the Indoor unit should be selected according to the following specifications (Type

"B“ approved by HAR or SAA).

Power

Connecting Cable

Power

Connecting Cable

Communication

Connecting Cable

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 69

Power Connecting Cable

Capacity W (kBtu/h) 5 270 (18) 7 030 (24)

Normal cross

sectional area1.5 2.5

Unit Indoor Indoor

Cable Type H05RN-F H05RN-F

Communication Connecting Cable

Capacity W (kBtu/h) 5 270 (18) 7 030 (24)

Normal cross

sectional area0.75 0.75

Unit Indoor Indoor

Cable Type H05RN-F H05RN-F

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Checking the Drainage

1. Pour a glass of water on the evaporator.

2. Ensure the water flows through the drain hose of the

indoor unit without any leakage and goes out the

drain exit.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 70

1. The drain hose should point downward for easy

drain flow.

2. Do not make drain piping like the following.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure it with two kinds of vinyl tapes.• If you want to connect an additional drain hose, the

end of the drain outlet should be routed above the

ground. Secure the drain hose appropriately.

In cases where the outdoor unit isinstalled below the indoor unit perform thefollowing.

Forming the Piping

Drain hosePipe

Vinyl tape(narrow)

Wrap withvinyl tape(wide)

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 71

following.1. Tape the piping, drain hose and connecting cable

from down to up.

2. Secure the tapped piping along the exterior wall

using saddle or equivalent.

In cases where the Outdoor unit is installed above the Indoor unit perform the following.1. Tape the piping and connecting cable from down to

up.

2. Secure the taped piping along the exterior wall.

Form a trap to prevent water entering the room.

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

Seal a small openingaround the piping's withgum type sealer.

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

Seal a small openingaround the piping's withgum type sealer.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Air purgingThe air and moisture remaining in the refrigerant system have undesirable effects as indicated below.

1. Pressure in the system rises.

2. Operating current rises.

3. Cooling (or heating) efficiency drops.

4. Moisture in the refrigerant circuit may freeze and block capillary tubing.

5. Water may lead to corrosion of parts in the refrigeration system.

Therefore, after evacuating the system, take a leak test for the piping and tubing between the indoor and

outdoor unit.

Air Purging

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 72

outdoor unit.

Air purging with vacuum pump1. Preparation

• Check that each tube (both liquid and gas side tubes) between the indoor and outdoor units have been

properly connected and all wiring for the test run has been completed. Remove the service valve caps from

both the gas and the liquid side on the outdoor unit. Note that both the liquid and the gas side service valves

on the outdoor unit are kept closed at this stage.

2. Leak test

• Connect the manifold valve (with pressure gauges) and dry nitrogen gas cylinder to this service port with

charge hoses.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

To avoid nitrogen entering the refrigerant system in a liquid state,

the top of the cylinder must be higher than its bottom when you

pressurize the system. Usually, the cylinder is used in a vertical

standing position.

1.Do a leak test of all joints of the tubing (both indoor and outdoor)

and both gas and liquid side service valves. Bubbles indicate a

leak. Be sure to wipe off the soap with a clean cloth.

2. After the system is found to be free of leaks, relieve the nitrogen

pressure by loosening the charge hose connector at the nitrogen

cylinder. When the system pressure is reduced to normal,

disconnect the hose from the cylinder.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 73

disconnect the hose from the cylinder.

Soap water method1. Remove the caps from the 2-way and 3-way valves.

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

3. To open the 2-way valve turn the valve stem

counterclockwise approximately 90°, wait for about

2~3 sec,and close it.

4. Apply a soap water or a liquid neutral detergent on the

indoor unit connection or outdoor unit connections by a

soft brush to check for leakage of the connecting points of

the piping.

5. If bubbles come out, the pipes have leakage

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Evacuation1. Connect the charge hose end described in the preceding

steps to the vacuum pump to evacuate the tubing and

indoor unit. Confirm the "Lo" knob of the manifold valve is open.

Then, run the vacuum pump. The operation time for evacuation

varies with tubing length and capacity of the pump. Required

time for evacuation when 30 gal/h vacuum pump is used If tubing

length is less than 10m (33 ft) 10 min. or more. If tubing length is

longer than 10m (33 ft) 15 min. or more

2. When the desired vacuum is reached, close the "Lo“ knob of the

manifold valve and stop the vacuum pump.

Indoor unit

Outdoor unit

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 74

manifold valve and stop the vacuum pump.

Finishing the job1. With a service valve wrench, turn the valve stem of liquid

side valve counter-clockwise to fully open the valve.

2. Turn the valve stem of gas side valve counter-clockwise

to fully open the valve.

3. Loosen the charge hose connected to the gas side

service port slightly to release the pressure, then remove

the hose.

4. Replace the flare nut and its bonnet on the gas side

service port and fasten the flare nut securely with an

adjustable wrench. This process is very important to

prevent leakage from the system.

Outdoor unit

Manifold valve

Pressuregauge

Open Close

Vacuum pump

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6.6 Piping & Wiring: Indoor Unit 6. Installation

5. Replace the valve caps at both gas and liquid side

service valves and fasten them tight.

This completes air purging with a vacuum pump.

The air conditioner is now ready to test run.

PUMP DOWNThis is performed when the unit is relocated or the refrigerant circuit is serviced.Pump Down means collecting all refrigerant into the outdoor unit without the loss of refrigerant.

Be sure to perform Pump Down procedure in the cooling mode.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 75

Be sure to perform Pump Down procedure in the 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 in the manifold hose using the refrigerant.

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

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

side valve and then quickly turn off the unit. Now Pump Down procedure is completed, and all refrigerant is

collected into the outdoor unit.

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6.6 Piping & Wiring: Indoor Unit 6. Installation

Piping Length and Elevation

Capacity

W (kBtu/h)

Pipe Size[(in)] Standard

Length m(ft)

Max.

Elevation m(ft)

Max.

Length m(ft)

Additional Refrigerant g/m(oz/ft)

GAS LIQUID

5 274 (18) Ø12.7(1/2) Ø6.35(1/4) 7.5(25) 15(49) 20(65) 20(0.22)

7 032 (24) Ø15.88(5/8) Ø9.52(3/8) 7.5(25) 15(49) 20(65) 30(0.32)

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 76

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6.7 Accessory Installation 6. Installation

Installation of Filters (Plasma Filter, Allergy Filter)

Open the front panel as shown.

Then pull the filter tab slightly forward to remove the air filter.

After removing the air filter remove the plasma and Allergy Free Filter by slightly pulling downwards.

Allergy Filter+Triple Filter

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 77

Allergy Free Filter + Triple Filter Plasma Filter

Installation of filters1. Pull out the [Allergy Filter + Triple Filter] From

the separately packed plastic bag.

2. Detach the two into tapes from the filter.

3. Insert the filter into the filter case.

4. Detach two into tapes from the plasma filter.

Plasma FilterTriple Filter

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7.1 Start up 7. Start up

1. Check that all tubing and wiring are properly

connected.

2. Check that the gas and liquid side service valves

are fully open.

Test Running

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 78

Prepare remote controller1. Remove the battery cover by pulling it according to

the arrow direction.

2. Insert new batteries making sure that the (+) and

(–)of battery are installed correctly.

3. Reattach the cover by pushing it back into position

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7.1 Start up 7. Start up

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

system refrigerant charge:

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

2. Measure the temperature of the intake and discharge

of air.

3. Ensure the difference between the intake

temperature and the discharge is more than 8°C

4. For reference; the gas side pressure of optimum

Test Running

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 79

4. For reference; the gas side pressure of optimum

condition is as below. (Cooling)

The air conditioner is now ready for use.

If the actual pressure is higher than shown, the

system is most likely over-charged, and charge

should be

removed. If the actual pressure are lower than

shown, the system is most likely undercharged,

and charge should be added.

RefrigerantOutside ambient TEMP

The pressure of the gas

Side Service valve.

R22 35(95(95(95(95)))) 4~5/G(56.8~71.0 P.S.I.G)

R410A 35(95(95(95(95)))) 8.5~9.5/G(120~135 P.S.I.G)

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Select the best Location

7.2 Checking point 7. Start up

Indoor unit Drain piping

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 80

Outdoor unitSelf-Diagnosis Function

This unit has an inbuilt error diagnosis capability. If thermistor fails, “CH”

And “01/02”is displayed alternately.

Please contact your serviceman/dealer in such a situation

Error Display LED Check Point

• Indoor room temperature thermistor open/short

• Indoor pipe temperature thermistor open/short

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Forced Operation

7.3 Operation 7. Start up

Normal Operation

1. The signal receiver is inside the unit.

2. Aim the remote controller towards the unit to operate it.

there should not be any blockage in between.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 81

Cooling Model

Heat pump Model

RoomTemp.

≥ 24 21 ≤ Room Temp<<<< 24 Room Temp<<<< 21

Operating mode

Cooling CoolingHealthy

DehumidificationHeating

Indoor FAN Speed

High High High High

Setting Temperature

22 22 23 24

Forced operation is used when the remote controller can't be used.

The operation will be started if the ON/OFF button is pressed. If you

want to stop the operation, re-press the button.

ON/OFFButton

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7.4 Special Functions 7. Start up

Energy-Saving Cooling Mode (Optional)

Energy-saving cooling mode can save energy in cooling

operation, because it can operate efficiently by setting

Body-adaptation time according to the change of time

and temperature and adjusting desired temperature

automatically.

1. Press the ON/OFF BUTTON to the unit.

2. Open the cover of the remote

Display Luminosity (Optional)

The unit display Luminosity can be adjusted by

using the remote controller. Open the cover of

the remote controller and press the LED

LUMINOSITY button. Display LED will be dark, press

the button again to set bright display.

(The order of 100% → 0% LUMINOSITY is

repeated whenever you press the button.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 82

2. Open the cover of the remote controller Select cooling operation

3. Press the ENERGY-SAVING COOLING MODE BUTTON.

4. To cancel the energy-saving cooling mode, press the ENERGY-SAVING COOLING MODE BUTTON again and unit will operate in previous mode. (Cooling mode)

This operation is basically heating

or cooling function of the air

conditioner. But during this operation

the controller changes the operation

mode automatically to keep the

temperature within ± 2 with respect to the

setting temperature.

Auto changeover Operation (Optional)

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7.4 Special Functions 7. Start up

Auto Operation (Optional)

<For Cooling Model>The temperature and fan speed are automatically set by the electronic controls based on the actual

room temperature. If you feel hot or cold, press TEMPERATURE SETTING buttons for more cooling

or heating effect.

You cannot switch the indoor fan speed. It has already been set by the Auto Operation Mode rule.

* Please select the code

as per your requirement.

FeelCode

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 83

Warm-2

Slightly warm-1

Neutral0

Slightly cool1

Cold2

FeelCode

<For Heating Model>

You can set desired temperature and indoor fan speed,

setting Temp. Range : 18~30

: You can not set the actual setting temperature and the fan speed in this operation

mode, But you can use the Auto swing in this operation. If the system is not

operating as desired, switch manually to another mode

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8.1 Basic Features 8. Control logic

Category Function

Air flow

Air supply outlet

Airflow direction control (left & right)

Airflow direction control (up & down)

Auto swing (left & right)

Auto swing (up & down)

Airflow steps (fan/cool/heat)

Chaos swing

Chaos wind (auto wind)

Jet cool (Power wind)

Swirl wind

Deodorizing filter

Category Function

Convenience

Auto changeover

Auto cleaning

Auto operation (artificial intelligence

Auto restart operation

Child lock

Forced operation

Group control

Sleep mode

Timer (on/off)

Timer (weekly)

Two thermistor control

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 84

Note: Refer PDB for the Function of all the models.

Air purifying

Deodorizing filter

Plasma air purifier

Profiler (washable / anti-fungus)

Installation

Drain pump

E.S.P. control

Electric heater (operation)

High ceiling operation

Reliability

Hot start

Self diagnosis

Soft dry operation

Special

function kit

Zone control

CTIE

Electro thermostat

Two thermistor control

Individualcontrol

Standard wired remote controller

Deluxe wired remote controller

Simple wired remote controller

Wired remote controller (for hotel use)

Wireless remote controller (simple)

Wireless LCD remote control

CAC networkfunction

General central controller (Non LGAP)

Dry contact

Network Solution (LGAP)

P야야야야 (power distribution indicator)

PI 485

Others Thermistor

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8.2 Compressor control 8. Control logic

When the intake air temperature reaches 0.5 below the setting temp, the compressor and the outdoor fan

stop.

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

Compressor ON Temp Setting Temp +0.5

Compressor OFF Temp Setting Temp -0.5

While in compressor running, indoor fan operate with the airflow speed set by the remote controller.

While in compressor not running, indoor fan operate with the low airflow speed regardless of the setting.

Intake Air TempSetting Temp++++0.5

C/O Model

8.2.1 Cooling Control

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 85

ON ON

ON ON

OFF

OFF

OFF

OFF

LOW LOW

3min 3min

< Cooling Mode Operation Graph >

Setting Temp

- 0.5(COMP OFF)

++++0.5(COMP ON)

Compressor

Outdoor Fan

Indoor FanSelecting

Fan Speed

Selecting

Fan Speed

OFF

OFF

LOW

ON

ON

Selecting

Fan Speed

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8. Control logic8.2 Compressor control

At the beginning of Fuzzy mode operation, The setting temperature is automatically selected according to the

intake air temp at that time.

Intake Air. Temp Setting Temp

26≤ Intake Air.Temp 25

24≤ Intake Air.Temp <<<<26 Intake Air Temp +1

Intake Air.Temp ≤18

22≤ Intake Air.Temp <<<<24

18

Intake Air Temp +0.5

18≤ Intake Air.Temp <<<<22 Intake Air Temp

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 86

According to the temperature set by Fuzzy rule, when the intake air temp is -0.5 or more below, the setting

temp, the compressor is turned off. When +0.5 or more above the setting temp, the compressor is turn on.

Compressor ON Temp Setting Temp +0.5

Compressor OFF Temp Setting Temp -0.5

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

temperature.

When the Fuzzy key (Temperature Control key) is input, the initial setting temperature is selected, the Fuzzy

key value and the intake air temperature at that time are compared to select the setting temperature

automatically according to the Fuzzy rule.

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8. Control logic8.2 Compressor control

H/P Model

When any of operation mode is not selected like the moment of the power ON or when 3 hrs has passed

since the operation off, the operation mode selected.

When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and

only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake

air temp at that moment as follows.

Intake Air. Temp Setting Temp

24≤ Intake Air.Temp Fuzzy Operation for Cooling

8.2.2 Heating Control

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 87

Indoor fan sped

High

Med

LowTi < 1

1≤ Ti < 2

2≤ Ti

Ti = Intake air temp - Comp off temp

If any of the operation mode among cooling/dehumidification/heating mode operations is carried out for

10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

Fuzzy airflow control.

21≤ Intake Air.Temp <<<<24

Intake Air.Temp <<<< 21

Fuzzy Operation for Dehumidification

Fuzzy Operation for Heating

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8. Control logic8.2 Compressor control

When the intake air temp reaches +3 over

the setting temp., the compressor is turned off.

When below the setting temp, the compressor

is turned on.

Compressor ON Temp. Setting Temp.

Compressor OFF Temp. Setting Temp +3.

While in compressor ON, the indoor fan is OFF

when the indoor pipe temp is below 26,

when above 28, it operate with the low

or setting airflow speed. (while in sleep

262835 Pipe Temp(Indoor)

10 sec

PIPE TEMP

INDOOR

33Intake Air TempIntake Air.

Temp

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 88

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,

when above 35, it operate with the low

airflow speed.

If overloaded while in heating mode operation,

in order to prevent the compressor from OLP

operation the outdoor fan is turned On/Off

according to the indoor pipe temp.

Setting Temp(COMP ON)

Setting Temp++++3.0(COMP OFF)

Compressor

Outdoor Fan

Indoor Fan STOP

4_way Valve

ON

ON

LOW

1min

ON

ON

LOW

1min

STOP

3min 3min

SFS

OFF

LOW STOP

OFF

LOW

ON

ON

ON

1min

LOW

OFF

OFF

SFS SFS

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8. Control logic8.3 Healthy Humidification

When the dehumidification operation input from the remote controller is received, the intake air temperature

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

While the intake air temperature is between compressor on temp. and compressor off temp.

10-min dehumidification operation and 4-min compressor off repeat.

Compressor ON Temp. Setting Temp +0.5

Compressor OFF Temp. Setting Temp -0.5

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

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

Intake Air Temp Intake Air. Temp Setting Temp

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 89

< Healthy Dehumidification Mode Operation Graph >

ON

ON

ON

ON

3’

20’ 10’ 10’

ON

ON

4’(Min)

OFF

OFF

ON

ON

4’ 10’(Max)

3 ’(Max)

ON

ON

OFF

OFF

4’

OFF

OFF

40”

OFF

OFF

OFF

OFF

OFF

OFF OFF OFF OFF

3’

20” 40”

Intake Air Temp

Setting Temp.

- 0.5(COMP OFF)

Setting Temp.++++0.5(COMP ON)

Compressor

Outdoor Fan

Indoor FanSelecting Fan Speed

Selecting Fan SpeedLOW LOW LOW LOWLOW LOW

Intake Air. Temp Setting Temp

26≤ Intake Air.Temp 2524≤ Intake Air.Temp <<<<26 Intake Air

Temp ----1Intake Air.Temp ≤1818<<<< Intake Air.Temp <<<<24

18Intake Air

Temp----0.5

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8. Control logic8.4 Hot Start

The indoor fan stops until the evaporator piping temperature will be reached to 28.

During heating operation, if piping temperatures falls below 26 fan stops

The operation diagram is as following

28

Pipe Temp

(Indoor) Pipe Temp(Indoor)

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 90

26

ON

1min

ON

ON

STOP LOW STOP LOW

1min

Compressor

Outdoor Fan

Indoor Fan

4_way Valve

Selecting

Fan Speed

Selecting

Fan Speed

< Hot-Start Operation Graph >

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8. Control logic8.5 Heating Overload

During heating overload condition, if indoor pipe temperature is higher than a overload condition, outdoor fan

stop to prevent Comp OLP caused by overload.

Outdoor fan control

During heating operation comp on, if indoor pipe temperature is above T1 outdoor fan will be off, if below

T2 it will be on again.

T1Pipe Temp(Indoor)

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 91

< Heating Overload Control Graph >

T2

ON

ON

ON ONOFF

Compressor

Outdoor Fan

Indoor Fan

4_way Valve

Selecting Fan Speed

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8.6 Defrost Control 8. Control logic

During the heating mode operation, heating cycle is reversed to the cooling cycle to defrost the evaporator

pipe of the outdoor unit in order to protect the evaporator pipe of the outdoor unit from freezing (in defrost

control, the compressor is on, and the indoor fan, outdoor fan, and the 4-way valve are off.)

After continuous 10 min. of “compressor operation”, the maximum temp. of the indoor pipe is measured, and

it’s max. temp. is compared with the present temp. of indoor pipe in order to get the difference between the

max. temp. and present temp.

1) After 40 min. heating mode operation, the MICOM checks whether carry out defrost control or not and the

time of defrost control according to the index of several conditions at every 4 min. interval

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 92

2) When the determined time of defrost control is below 7 min., heating mode operation continues without

carrying out defrost control according to the procedure stated above, the determination is made again.

When the defrost control time is 7 min or longer, defrost control is then carried out.

3) After 60 min., the logic shown above is same.

During the defrost control, the minimum temp of the indoor pipe is measured and it is compared with the

present temp. of the indoor pipe to get the difference of the indoor temperature. When the difference is 5

or higher, the defrost control is completed and heating mode operation is carried out.

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8.6 Defrost Control 8. Control logic

< Defrost Control Graph : Fuzzy Logic >

Max Temp

Heating Cycle

40 min.

∆Tmax

HOT START

EndCOMP ON

10 min. Max Temp

Defrost

If the determined defrost time is completed before the end of defrost control, the defrost control is stopped

and heating mode operation is carried out regardless of the above condition in the defrost control.

when the indoor pipe temp is 42 or above, the defrost control is not carried out even if the condition is one

of the defrost conditions above.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 93

Intake

Air Temp

Pipe

Temp

ON

ON

OFF ON

ON

ON

OFF

OFF

ON

ON

Defrost

Time

∆Tmin=5 OverMin Temp

Defrost

Start

Defrost

End

Compressor

Outdoor Fan

Indoor Fan

4_way Valve

Defrost

Condition

Start

Heating Time(minutes)

30 60

0%%%%

Discharge Temp.(Indoor)

DefrostCondition(Outdoor)

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8.7 4 – Way Valve 8. Control logic

At the beginning of heating mode, 4-way valve will operate in 2~3sec after receiving the data to operate

heating cycle.

When operation stops,4-way valve will stop after 30 sec delay to prevent some noise of refrigerant.

When operation mode changes cooling to heating, 4-way valve will operate in heating cycle after 2~3 sec

delay.

When defrost mode, it will operate in cooling cycle.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 94

In case 4-way valve need to be controlled due to changing the operation mode, comp must be stopped first

(but, another control on defrost mode)

In case 4-way valve is off condition (changing operation mode or operation off), compressor will be stopped in

advance, and 4-way valve will be controlled in 30 sec after Comp off.

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8.8 Other Operations 8. Control logic

1. C/O Model

If the jet cool key is input at any operation mode during 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

When the sleep time 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 then

operated in order that the air outflow could reach further.

2. H/P Model

8.8.1 Jet Cool

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 95

2. H/P Model

While in heating mode or Fuzzy operation, the jet cool key cannot be input. When it is input while in the other

mode 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

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 then

operated in order that the air outflow could reach further.

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8. Control logic8.8 Other Operations

When the power is restored after a sudden power failure while in appliance operation , the mode before the

power failure is kept on the memory and the appliance automatically operates in the mode on the memory.

The slide switch on the main unit of the appliance should be on the Auto Restarting position in order that the

auto restarting operation is available.

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)

8.8.2 Auto Restart

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 96

- Auto Swing (Chaos Swing)

After restarting by the Auto Restarting function, the appliance keeps operating regardless of operating time.

When starting operation with forced operation , the initial operation mode is determined by room temperature.

Room temperature Mode Setting temperature Setting fan speed

24≤room temp Cooling 22 High

21≤room temp<24 Dehumidification 23 High

Room temp<21 Haeting 24 high

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8. Control logic8.8 Other Operations

A. On - Timer Operation

When the set time is reached after the time is input by the remote controller, the appliance start 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 on pause at the time set by the timer, the pause continues.

B. Off - Timer Operation

8.8.3 On/Off Timer

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 97

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

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.

C. 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 is carried out according to the set time.

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8. Control logic8.8 Other Operations

The Setting temperature will be automatically raised by 1 30minutes later and by 2 1 hour later

(cooling/healthy dehumidification)

The operation will be stopped after 1,2,3,4,5,6,7 hour

Indoor fan control

- Cooling/ Healthy Dehumidification/ Auto Mode Low speed

- Heating/Auto Mode Mid speed

Sleep key input30 Min 30 Min

1

8.8.4 Sleep Timer

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 98

Set Temp

Set Temp ----0.5(COMP OFF)

Set Temp ++++0.5(COMP ON)

COMP

Outdoor fan

Indoor fan speed

ON

ON

Selecting

fan speed

Intake air temp

Low (heat pump : Mid)

1

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

ON

1

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8. Control logic8.8 Other Operations

A. C/O Model

If you lose wireless remote controller, you can operate the unit with forced operation switch.

The standard conditions are as

8.8.5 Forced Operation

Cooling Model

Operation mode

Indoor fan Speed

Setting Temp.

Cooling

High

22

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 99

In the forced operation mode, the indoor fan is operated at low speed for around 15 sec and then

the operation condition is set according to the intake air temperature as follows.

B. H/P Model

Intake Air. Temp Setting Temp

24≤ Intake Air.Temp Cooling Mode Operation,22,High Speed

21≤ Intake Air.Temp <24

Intake Air.Temp < 21

Dehumidification Operation,23,High Speed

Heating Mode Operation,24,High Speed

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8. Control logic

A. Compressor 3minutes Delay

In the case when the compressor restarts after compressor off, there is time delay of 3-min. in order to

prevent damage to compressor due to frequent ON/OFF .

Once OFF, the indoor unit fan will start with a delay of 5 seconds in order to prevent noise which may be

caused if the vane opening time and the fan start time are the same.

B. Indoor Fan Start 5seconds Delay

8.8 Other Operations

8.8.6 Time Delay Operation

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 100

Loads such as Fan speed control , Compressor, Timer etc are activated 2~ 3 seconds after the

corresponding key is pressed on the Remote controller .

C. Function Activation Delay Time

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8. Control logic8.8 Other Operations

Comp and Outdoor fan stop when indoor evaporator pipe temperature is below 0 and restart when the pipe

temperature is above 7.

0

7

Pipe Temp(Indoor)

Pipe Temp(Indoor)

8.8.7 Eva Frosting Prevention

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 101

Setting

fan speed

COMP

OUTDOOR FAN

INDOOR FAN SPEED

0

7Min

ON

Setting fan speed

OFF

ON

7Min

OFF

ON

ON

ON

ON

Low Low

OFF

OFF

3Min3Min

Setting fan speed

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8. Control logic8.8 Other Operations

With heat pump model, cooling and heating operation is changed automatically on the basis of the room temp.

Setting Temp.

+0.5

+1

+2

-0.5

-1

-2

Inside Temp

8.8.8 Auto Changeover

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 102

• Initial Setting Temp: 22 (Memorize the final setting temp)

• Control of setting temp.

-Wireless Remote Controller: 18-30 .

-Reset Button in indoor unit: finally memorized temp.

-Variation – 2 to + 2 Set.

Low

CYCLE

COMP on off offon on off on off on

Indoor FAN Low

off off

Low StopLow/

Stop

Low/

Stop

Set

Mode

Cooling Heating Cooling

Set

ModeSet

Mode

Set

ModeSet

Mode

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8.9 PCB Details 8. Control logic

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 103

Note: Refer PDB for PCB Details of all the models.

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9.1 Error code 9. Troubleshooting

Thermistor Error Indicator

When the indoor pipe sensor or the room temperature sensor is open or is shorted, the error is indicted.

To indicate the error, the operation LED is flashed at 3 sec interval.

When the error is cleared, the LED stops flashing, the operation LED is on.

while in appliance pause, the error is not indicated

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 104

Operation LED ON

LED OFF

LED ON

Sensor ERROR

LED OFF

LED ON

3 sec.

0.5 sec.

Sensor ERROR clear

Operation LED on

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9.2 Trouble shooting 9. Troubleshooting

1. Product does not operate at all

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,

60Hz)(About AC 220/240V, 50Hz)

• Main power's voltage

• Voltage applied to the unit Check each load (Indoor/Outdoor Fan Motor,

(After 10 seconds)

NO YES

Turn on Main Power

Turn off Main Power

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 105

• Replace Trans

• Replace IC04D

• Replace faulty

parts

• Connecting method of Indoor/Outdoor connecting cable

• Check PCB Assembly

- Fuse - Pattern damage - Varistor(ZNR01J)

Check the connection housing for contacting

• Connector related to CN-TAB1, RY-COMP NO.3

• Connector related to CN-MOTOR

• Connector contacting of Outdoor

Fan/Compressor

• Display PCB Assembly Check

Compressor, Stepping Motor) and contacting

condition of related connector

Remedy

Main PCB Board Operation Check

• SMPS Transformer(Indoor unit)

- Input Voltage

- Output Voltage(ZD02D)

• IC04D(7805) Output

(Indoor/Outdoor unit)

• IC01A(KIA7036,Reset IC)X01(8MHz)

-About AC220V/240V±±±± 10%

- Check the power voltage

- About DC12V

• DC +5V

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

ContentItems

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9.2 Trouble shooting 9. Troubleshooting

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.

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

Sleeping Mode, the wind speed is set to the low speed by force.).

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 106

• Check the connecting circuit

between CN-DIS1②②②② - R01L(5.1kΩ) - C01L(680pF) - MICOM PIN 43

• Check Receiver Assembly

Check Display PCB Assembly

Voltage between CN DISP1 ①①①① – ⑦⑦⑦⑦

: DC+5V

Check point

Cause by the remote control Cause by other parts except the remote control

When the mark( ) is displayed in

LCD screen, replace battery.

Check the connecting circuit between the remote controller

MICOM (No.30 ) - R17(2Ω) - IRLED - TR- R16(2.2KΩ).

Check the contact of CN-DISP1 connector

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9.2 Trouble shooting 9. Troubleshooting

3. Compressor/Outdoor Fan are unable to drive.

• Check the electrical wiring diagram of outdoor side.

• Check the abnormal condition

Turn on Main Power

Operate "Cooling Mode( )" by setting the desired temperature of the remote

controller is less than 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 temperature of Heat Exchanger (EVA).

When the sensor circuit for indoor temperature and connector are in bad connection

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 107

for the component of

Compressor/Outdoor Fan Motor.

• Check the "open" or "short" of connecting wires between indoor and outdoor.Check Relay (RY - COMP) for driving compressor.

• When the power (About AC220V/240V) is applied to the connecting wire terminal support transferred to compressor, PCB Assembly is normal.

• Check the circuit related to the relay.

Check point COMP ON COMP OFF

Bet. Micom(No.62) and GND

Between IC01M(No. 14) and GND Below DC 1V(app)

DC 5V DC 0V

About DC12V

When the sensor circuit for indoor temperature and connector are in bad connection or are not engaged, Compressor/Outdoor Fan is stopped.• Check the related circuit of RY-FAN.

• Check the indoor temperature sensor is disconnected or not (About 10kΩ / at 25°°°°C).

Turn off Main Power

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9.2 Trouble shooting 9. Troubleshooting

4. When indoor Fan does not operate.

Turn off Main Power

Check the connection of CN-MOTOR

Check the Fan Motor

Check the Fuse(AC250V/T2A

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

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

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 108

Check the related circuit of indoor Fan Motor.

• The pin NO 63 of Micom, and the part for driving TRIAC(the input and output signal of IC01M, PIN NO 7, 10)• 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.

Turn ON Main Power

About AC 180V over

TRIAC is not damaged

About AC 50V over

TRIAC Check

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9.2 Trouble shooting 9. Troubleshooting

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

• If the regular torque is detected when rotating the Vertical Louver with hands -> Normal

• Check the connecting condition of CN-U/D Connector

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

Check the operating circuit of the Vertical Louver

5. When Vertical Louver does not operate.

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 109

If there are no problems after above checks

• Confirm the assembly conditions that are catching and interfering parts

in the rotation radial of the Vertical Louver

Check the operating circuit of the Vertical Louver

• Confirm that there is DC +12V between pin①①①① (RED) of CN-U/D and GND.

• Confirm that there is a soldering short at following terminals.

- Between 60,61,62 and 63 of MICOM

- Between 2,3,4 and 5 of IC01M

- Between 15,14,13 and 12of IC01M

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9.2 Trouble shooting 9. Troubleshooting

6. When Heating does not operate

In heating mode, the indoor fan operates, in case the pipe temperature is higher

Turn ON Main Power

Operate “Heating Mode( )” by setting the desired temperature of the remote control higher than one of the indoor

temperature by 2°°°°C at least.

About

DC 12V

Check the DC voltage on the PCB ASSEMBLY

• The details of check are as followings• Comp Relay.

Check point

Between Micom

(NO.59) and GND

Between IC01M

(NO.11) and GND

Comp ON

DC 5V

Below

DC 1V

Comp OFF

DC 0V

About

DC 12V

• 4 way Relay

• Outdoor fan Relay

Between Micom

(NO.53) and GND

Between IC02M

(NO.12) and GND

Fan ON

DC 5V

Below

DC 1V

Fan OFF

DC 0V

Check point

Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 110

in case the pipe temperature is higher

than 28°°°°C.

Check the connector of intake and pipe sensor (thermostors)

• Check the related circuit of RY-4WAY

• Check the indoor room temperature is

disconnected or not (about 10KΩ/at 25°°°°C).

• Check the indoor pipe temperature is

disconnected or not (about 5KΩ/at 25°°°°C).

Between Micom(NO.51) and GND

Check point

Between IC02M(NO.11) and GND

4 way ON

DC 5V

Below DC 1V

4 way OFF

DC 0V

About DC 12V

• 4 way Relay

• 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.

Turn off Main Power

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Publisher : CAC Engineering Team

Air Conditioning Company

LG Electronics Inc.

TITAN

LG Electronics Inc.

The date of issue : 2010.05

Copyright Copyright Copyright Copyright 2010 by LG Electronics, Inc. All rights reserved.2010 by LG Electronics, Inc. All rights reserved.2010 by LG Electronics, Inc. All rights reserved.2010 by LG Electronics, Inc. All rights reserved.No part of this publication may be reproduced or distributed in any No part of this publication may be reproduced or distributed in any No part of this publication may be reproduced or distributed in any No part of this publication may be reproduced or distributed in any form or by any means, without the prior written permission of the form or by any means, without the prior written permission of the form or by any means, without the prior written permission of the form or by any means, without the prior written permission of the publisher.publisher.publisher.publisher.

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Copyright 2010 @LG Electronics / AC Company All Rights ReservedTITAN 112