Air Conditioning Academy 2008-3 LG AC Academy Multi F / FDx Training Material.

Air Conditioning Academy2008-3 Ⓒ LG AC Academy

Multi F / FDxMulti F / FDxTraining Material


Contents

1. System Introduction ………………….………….…………………….…...................

1.1 Define………………………………………………………………………………………………..

1.2 conceptual difference……………………………………………………………………………..

2. Nomenclature ………………….……………………..……………….….......................

2.1 ‘Indoor units (Global)….……….….………………………………………………………………

2.2 Outdoor unit (Global) …………………………………………..................................................

2.3 Indoor units (Europe)………………………………………………………………………………

2.4 Outdoor unit (Europe)………………………………………………………………………………

3. Line Up………………….…………………….……….…………….…………………………………..

3.1 Outdoor Unit ……………………………………….….…………………………………………..

3.2 Indoor Units…………………………………………................................................................

4. Features & Benefits ………………………………………………………………………

4.1 Energy Saving ………………………….….………………………………………………………

4.2 More Powerful……………………………………………………………………………………..

4.3 Powerful BLDC Compressor……………..….……………………………….…………………

4.4 Step-up Inverter by the PFC & the Sine Wave Control Technology………….................

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3

4

4

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5

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6

7

7

7

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4.5 Wide Range………………………….……………………………………………………………

4.6 Comfortable…………………………………………….…………………………………………

4.7 BLDC Fan …………………………………………………………………………………………

5. USP…………………………………………………………………………………………

5.1 Better Performance………………………………………………………………………………

5.2 Free Joint………………………………………………………………………………………..

5.3 Compatible Indoors…………………………………………………………………………….

5.4 Changeable Panel (SE, S8)…………………………………………………………………..

5.5 Low Heights Cassette Indoor…………………………………………………………………

5.6 Compact Outdoor………………………………………………………………………………

5.7 Longer Piping…………………………………………………………………………………...

5.8 Indoor Combination…………………………………………………………………………….

5.9 Small and light weight Outdoors ……………………………………………………………..

5.10 Easy Installation………………………………………………………………………………..

6. Network Controls………………………………………………………………………..

7. Application Guidline……………………………………………………………………

8. References - Petro Pars HQ BLDG……………………………………………………

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Non-Inverter Inverter Type

Multi MFree Joint

Multi M/M DX

Distributor Box

Free Joint

14~30K 48/50K~140K 14~40K 40~45K

Multi-split systemMulti-split system

MultiFixed Joint

Fixed

14~44K

Tropical Model

35~44K(3Ф)

Non Tropical Model Multi Pipe

1. System Introduction

1/36


Single piping with BD boxSingle piping with BD box

Up to 9 indoor units

*BD unit : Branch Distributor unit

Multi pipingMulti piping

Up to 5 indoor units



1.1 DefineWhat is a Multi System ?


2/36


1.2 Conceptual difference Single and Multi Systems


3/36


• Various combination

Total 1,250 types of combination are available with using 14 outdoor units and 36 indoor units

• Wide range

LG multi provide various indoor units, and outdoor units up from 4.1kw to 16.4kW.

• Convenient control

Various kinds of controllers are available such as PC, Deluxe and Simple Central Controller.

• Long and high elevation piping

Multi F and Multi Fdx system supports a total piping length from 30m to 145m and high elevation from 15m to 30m for more flexibility depending on the installation site condition.

• Powerful operation

Multi F/FDX System



Less Installation EffortLess Maintenance Effort

Less Product PriceLess Installation EffortLow Outdoor NoiseSpace Saving(Outdoor)

Same Cooling Power with Less Outdoor Units

Same Cooling Power with Less Outdoor Units

Using Pipe Not DuctUsing Pipe Not Duct

Individual ControlIndividual Control

Less Operation Cost

Multi isBest Solution

Comparedwith

Stronger Points

Single System Single System

Ducted System Ducted System



PricePrice

Installation LevelInstallation Level

Low High High

EasyNormalNormal

Constant speed

Multi pipingMulti piping Distributor Type Distributor Type

Inverter Compressor

Multi pipingMulti piping

Running CostRunning Cost

High Low Low

Capacity range(Btu/h)

Capacity range(Btu/h)

14 ~ 44k 14 ~ 40k 1 phase: 40 ~ 56k3 phase: 36 ~ 54k



2.1 Indoor units (Global)

2.2 Outdoor unit (Global)

4/36

2. Nomenclature


2.3 Indoor units (Europe)

2.4 Outdoor unit (Europe)

2. Nomenclature

5/36


PhaseMax Indoor

Units Feature

Mu

lti

1Φ,220V

2

3

4

PhaseMax Indoor

Units Feature

Mu

lti

F

1Φ,220V

2

3

4

PhaseMax Indoor

Units Feature

Mu

lti

F D

X

1Φ,220V

Capacity Range (kBtu/h)

14 18 21 30


14 15 24 2718


7

8

9

35 40/42 54/5648

3Φ,380~414V

5

7

8

9

UH

U3

UE

U3

(Fre

e jo

int)

(In

vert

er)

(In

vert

er

+ D

B)

21 30 40

4

3. Line- Up

UM

UE

UE1

UH

UE

UE

UE1

6/36

3.1 Outdoor units New developmentOld model

Chassis

Chassis

Chassis

Air Conditioning Academy2008-3 Ⓒ LG AC Academy 7/36

3. Line- Up

3.1 Indoor units

Indoor Units

Mu

lti

F/F

DX

SRAC

ARTCOOL

Mirror

4Way CST

1Way CST

L.Duct

H.Duct

BUILT IN

CEILING &FLOOR

7k 12k 24k18k9k

S4 S5

SF

SE S8

TR TP

TC1

B1 B2

BH

BP

VE VB

Ind

oo

r U

nit

TQ

TE1 TH

Old model

New developmentDevelopment plan


Multi F type1.A3UW216FA3 between A3UW186FA0 & A4UW246FA3 will be launched newly in 2007. 3Room will be connected and Size of tool is same with FM19AH

New

New

W=870 mm D=320 mm

H=655mm

W=870 mm D=320 mm

H=808mm

3. Line- Up


Multi F type1.A4UW276FA3 newly launched in 2008.2.5 room model added in Line up3.Capacity of multi piping model increase to 40kbtu.

New

New

New

4

↓

5

W=870 mmD=320 mm

H=808mm

W=870 mmD=320 mm

H=1,038mm

Volume : 76%

3. Line- Up


W=950 mmD=330 mm

H=1,380mm

W=870 mmD=320 mm

H=808mm

W=806mmD=690mm

H=1,507mm

New

New

Volume : 52%

Multi FDX type1.The volume of A9UW566FA3 decrease 52% in volume2.Rooms connected to multi Fdx add 1 more.(Max 9 room)

3. Line- Up


4. Features and Benefits

4.1 Energy Saving

4.2 More Powerful

An inverter's capacity will fluctuate in order to match the air-conditioning requirements, so an inverter can be more energy efficient than a constant speed compressor.

With a wider operation range for heating and cooling, the inverter is able to operate in even the most extreme outdoor temperatures. An inverter compressor can also operate faster than conventional air conditioners thus allowing the air conditioner to reach the set temperature faster and brings you comfort sooner.

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4.3 Powerful BLDC CompressorThe LG inverter air conditioner comes with a BLDC compressor that uses a strong neodymium magnet. Its compressor thus has improved efficiency compared with AC inverter.

4.4 Step-up Inverter by the PFC & the Sine Wave Control Technology

(*PFC :Power Factor Correction)

The LG air conditioner is manufactured using the PFC and the sine wave technology. By the PFC control, raising the operating voltage from the existing DC 280V to DC 380V can be done.

The sine wave control enables soft operation in a low frequency area, thereby expanding the product's operating range. This also markedly improves the product's energy efficiency.

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4.5 ComfortableOnce the desired temperature is achieved, unlike conventional air conditioners that turn the compressor on and off, LG inverter units adjust and constantly vary the compressor speed to maintain the desired temperature with minimal fluctuation to ensure that your comfort is not compromised

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4.7 BLDC Fan

BLDC fan motor offers additional energy saving in operating mode. Compared with AC motors, BLDC fan motor can cut energy by 34%at full velocity. AC motor is operating at full velocity only but BLDC Motor can change velocity according to load. Energy efficiency levels at low velocities in particular have been improved by 54%.


3.223.22 3.543.54

4.404.40

OLD NEWNEW

3.703.70

3.213.21 3.543.54

3.43.44.504.50

Cooling Efficiency

9%

5.1 Better Performance

25% 14% 23%

Better Performance with higher EER and COP(High EER or COP compared to old models at cooling mode as well as heating mode)

Heating Efficiency Cooling Efficiency Heating Efficiency

24 kBtu/h24 kBtu/h 30 kBtu/h 30 kBtu/h

5. USP

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24 kBtu/h24 kBtu/h

3.543.54

30 kBtu/h 30 kBtu/h

4.404.404.404.40

D CompanyD Company LGLG

3.903.90

3.303.304.174.17

3.43.4 4.504.50

5% 10% 10% 2%

Better Performance with higher EER and COP(High EER or COP against Daikin at cooling mode as well as heating mode)

Cooling Efficiency Heating Efficiency Cooling Efficiency Heating Efficiency

5.1 Better Performance

5. USP

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5.2 Free Joint

5. USP

☞ Multi F/FDx model give you the flexibility to connect any model of indoor unit depending on your choice

13/36


5.3 Compatible Indoors

12 types of indoor units

Low static duct

5. USP

☞ Twelve different type of indoor unit are compatible with our Multi F/FDx

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Old • Display Wiring + Panel exchange New

++

Display Wiring

+

• Only Panel exchange

(Display on panel) (Display on body)

Silver (V)

Blue (B)

Mirror (R)

Multi Indoor - ART COOL Mirror5.4 Changeable Panel (SE, S8)

5. USP

☞ Compare to old model it is easy to change the panel without disconnecting the wire

15/36


Before New

24 kBtu/h

W=670 D=670

H=269

TR/TQ Chassis

W=950 D=950

H=225

TF Chassis

5.5 Low Heights Cassette Indoor

5. USP

☞ The new 4 Way Cassette indoor unit are favorable for low ceiling height condition

TP Chassis

W=840 D=840

H=204

Length : mm

16/36

TE1 Chassis

9 / 12 /18 kBtu/h

W=570 D=570

H=214(TR)

H=256(TQ)


27 / 30 kBtu/h

21 kBtu/h

48 / 54 kBtu/h

New Line up

Smaller chassis

UY

U3

UE2UE1

UE

W=870D=320

H=1050

1417

740540

900 330

1380

Length : mm

5.6 Compact Outdoor

5. USP

W=870D=320

H=808

Smaller chassis

17/36


805x1,407x509 940x1,380x330

Volume Ratio Reduce

42%↓

805

50

9

33

0

940

Installation Area Ratio

47%↓

Conventional 48k /54K New 48k /54K

5. USP

5.6 Compact Outdoor

18/36

* Comparison of 48/54 kBtu/h Model


Height

Distributor box

Main

Branch

LONGER PIPE LENGTHNew Multi-Inverter with longer pipe length and more connectivity of room

5.7 Longer Piping

5. USP

Capacity

Btu/h

Max No.

of IndoorPiping length (m)

Old New Old New

30 k 4 4 70 75

40 k 5 7 100 115

48 k 7 8 110 135

56 k 8 9 120 145

☞ The installation is more easy with flexibility of using longer connecting pipes.

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① Big size Accumulator

② Cyclone type oil separator

②

Cycle DiagramCycle Diagram

5. USP

①

< cyclone type oil separator >

Refrigerant

Refrigerant+Oil

Oil


☞ Long & High Elevation Piping : Max Total Piping Length is up to 145m

h1

h2

Main Pipe

Indoor Pipe

B.D

B.D

h1

h2

A

B

Multi Piping typeMulti Piping type Distributor typeDistributor type

Piping Length (m)

Total(A+B)

Max (A)

In-Out(h1)

In-In(h2)

14/15k 18k 24k 30k 40k

Total (Main + Indoor)Main PipeBD – Indoor (Total) (Each)In-Out(h1)In-In(h2)

40kPiping Length (m)

30 40 50 75 85

20 25 25 25 25

15 15 15 15 15

7.5 7.5 7.5 7.5 7.5

(1Ф)(1Ф) (1Ф)(1Ф)

5.7 Longer Piping

5. USP

20/36

1005040143015

48k 54k

1355580143015

1455590143015


h1

h2

Indoor Pipe

B.D

B.D

Distributor typeDistributor type

Total(Main+Indoor)Main PipeBD – Indoor(Total) (Each)In-Out(h1)In-In(h2)

Piping Length (m)

(3Ф)(3Ф)

54k

5.7 Longer Piping

5. USP

☞ Long & High Elevation Piping : Max Total Piping Length is up to 145m

21/36

Main Pipe

42k

1254470203015

36k

1004050203015

48k

1355580203015

1455590203015


4 Room 5 Room

With Main Service Valve Type

5.8 Indoor Combination

5. USP

☞ An example of 30 kBtu/h unit. Number of room connectivity as well a combination ration is improved as compare to previous model

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OLD NEW


Max Combination Ratio

5. USP

5.8 Indoor Combination

☞ We can have a maximum combination ratio of 167%

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Compact Outdoor (30 kBtu/h model)

5.9 small and light weight Outdoors

5. USP

☞ Our new outdoor unit are compact as well as light weight

24/36

D company


5.10 Easy Installation

5. USP

25/36

☞ Flare type connection makes LG Distributor Box easy to install as compare to our competitors .


☞ Applicable in all Multi Inverter units

LG Air Conditioners

ACP

LON Works BACNet

HomNet

PDI

Simple Central Controller AC Smart

Deluxe Wired Remote

Controller

Dry Contact CNU

PCC

6. Network Controls

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• BLDC Motor

Rotation Angle(deg)

０３６０

Loa

d T

orqu

e

Single Rotary

Twin Rotary

０

• Twin Rotary

▣ BLDC Motor

Magnet

AC BLDCItems

Structure

Efficiency

Noise

100

100

130~125

90~95

• Wide frequency range - better tower low side - heating capacity improve

• Better control at low & partial load conditions

• High efficiency

• Low vibration

• Longer life time of compressor

• Soft start operation

▣ Twin Rotary

Vibration 100 15~10

［ % ］

“ Reduce the vibration by Twin technology ! “

Suction (360 )O

DischargeValve

Vane

CylinderRoller

Shaft

Compression (90-180 )O

Discharge (270 )O

Twin

Single

1. Basic Information / Direction / DC twin compressor


PFC control increase the voltage operating the compressor form 280V to 380V

By using PFC control enlarge the operating range (Low ambient condition)

DC280V DC380V

1. Basic Information / Direction / PFC180 control


0 60 120 180 240 300 0 60

A相

B相

C相

eA

eB

eC

A+C -

B+A -

A+B -B -

C+

0 60 120 180 240 300 0 60

A相

B相

C相

eA

eB

eC

120

A+B+

A- A+B-B-

C+ C-C-C+

Pulse- wave (120 ) Sine- wave ( 180 )

EMF

IPM

Ra

EMFa

LcRc

EMFcEMFbRb

Lb

MOTORLa

Vdc

IPM

Ra

EMFa

LcRc

EMFcEMFbRb

Lb

MOTORLa

Vdc

3phase voltageComparison

3phase voltageComparison Current sensingCurrent sensingMICOM

(8/16 Bits)MICOM

(8/16 Bits)MICOM(32 Bits)MICOM(32 Bits)

o o

▣ Comparison ▣ Benefit

With adoption of sine- wave,

PWM * , which smoothes

the motor rotation,

1. The operating performance

is enhanced.

2. Noise and vibration

will be reduced

3. Heating capacity

will be raised because of

high frequency operating

at low ambient

* Pulse with Modulation

1. Basic Information / Direction / PFC180 control


25℃

32℃

39℃

45℃

43℃

37℃

30℃

23℃

Step_Fan

Step_Fan + 1

Step_Fan + 2

Step_Fan － 1

Step_Fan － 2

<Cooling mode>

-3℃

4℃

11℃

18℃

16℃

9℃

2℃

-5℃

Step_Fan

Step_Fan － 1

Step_Fan － 2

Step_Fan + 1

Step_Fan + 2

<Heating mode>

Control

Power IPM

sensor

Filter

▣ Feature

▣ Algorithm

▣ Benefit

Along with efficient in the whole range

of low speed to high speed,

the more improvement is done especially

in the low speed operation,

compared with the conventional

Constant speed AC motor

Motor Input

Load

AC Fan MotorDC Fan Motor

EnergySaving

55-50%

90-95%

1. Basic Information / Direction / DC FAN MOTOR

Air Conditioning Academy 2008-3 LG AC Academy Multi F / FDx Training Material.

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Transcript of Air Conditioning Academy 2008-3 LG AC Academy Multi F / FDx Training Material.