Download - VRF system presentation !

Lets Go Green Life’s Good When it’s Green

• 21.5% Savings on Energy Use

• 31.8% Savings on Potable Water Use

• 30 KW on-grid Solar PV system

• 3.91% Offset by On-Site Renewable Energy

• 91.7% Diversion from Landfill of Construction Waste

• 30.6% Use of Materials with Recycled Content

• 45.2% Use of Materials Regionally Available

LG Green Building

Jebel Ali - Dubai

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Global Sales LGE Consolidated Basis, IFRS

Unit : USD Billion

Total does not equal 100 percent as divisional sales pertain solely to LG Electronics Korea and overseas

subsidiaries and include internal transactions, other subsidiaries’ earnings, etc.

2006 2007 2008 2009 2010 2011

USD 39

USD 44

USD 45

USD 43.4

USD 48.2

USD 48.97

AE 8%

HA 20%

MC 22%

HE 41%

AE Company (Air Conditioning & Energy Solution)

Residential

Manufactured Korea’s

1st air conditioner 1st company to sell

100 million units

World’s Top selling air conditioning manufacture for

8years

Air Conditioning &

Energy Solution


Full line-up of comprehensive air conditioning solutions LG VRF

Multi V Systems (VRF) Heating(Residential)

Indoor Units

Single Systems Multi Split Systems Rooftop

Heating(Commercial)

HVAC Solution


Full line-up of comprehensive air conditioning solutions LG Chiller

Chiller System

AHU CTHU NPP(Nuclear Power Plant) Ventilation Systems

Control Systems Building Management Systems

HVAC Solution


Vertical Solution

Multi V III Multi V Water II DX AHU Multi V Space III

eco V

Low Static Duct

Low Static Duct

Art-1 Way

LED

PLS

DX AHU

Chiller

eco V

Multi V Water

BMS Multi V Geo

Chiller

ART COOL

Home Energy Management System

Office Buildings Hotels High-Rise Buildings

Hotel Solutions


Vertical Solution

Hospitals Shopping Malls

4-Way Cassette

1-Way Cassette Multi V Water

Multi V Geo

Chiller

BMS

DX AHU

BMS

LG Multi V System

Contents

What is VRF System ?

Variable Refrigerant Flow

The Variable Refrigerant Flow System has the ability to control the

amount of refrigerant flowing through the system

Simply, each FCU/AHU unit receives only the required amount of

refrigerant in order to meet the cooling load of the conditioned space

The Inverter Unit will Gradually Increases or Decreases its Capacity

based on the load by increasing or decreasing the rotation speed of

the motor.

World Best COP Tech.

V Scroll Inverter compressor

Sine wave inverter control

Cyclone sub-cooling circuit

High static propeller fan

BLDC Inverter Fan Motor

Uniform (refrigerant) distributor

Wide Louver fin in Heat Exchanger

Ventilation with AHU

- No individual control

- Freeze & burst

(chilled & hot water type)

- Big energy consumption

(pump & fan)

- Low air volume, static

- No ventilation & humidification

- Low installation space

- Inverter compressor

Low energy consumption

(Inverter compressor)

Big air volume,

high static pressure

Ventilation & humidification

IAQ control

Easy Installation

Features

Convectional AHU VRF Indoor Unit

Contents

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How it works?

Control of the refrigerant flow by inverter compressor

INV ST1 INV ST1

INV

INV

ST1

14%

100%

100%

Comp. capacity control

Load

10%

P

Indoor

Units

Contents

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Technical Innovation

V Scroll inverter compressor is LG Compressor Brand name. The compressor

is manufactured by LG Korean factory using state of the art techniques. The

adoption of the BLDC motor makes the system more efficient and powerful.

Innovation 1 – V scroll

V Scroll inverter compressor

BLDC motor

More efficient

Scroll type

Bigger performance

Rotor

Steel Plates

ND Magnetic

Reluctance torque

Magnetic torque

Inverter driver

i T N

S

※ Multi V is made in Korean factory as well major components like compressor.

Contents

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Technical Innovation

Sub-cooling is one of the most important technologies in VRF system.

LG Multi V use more efficient cyclone type. By cyclone sub-cooling

circuit, Best effect can be achieved.

Cyclone sub-cooling circuit

Sub-cooling circuit

More efficient

Less pressure loss

Cyclone

Larger heat-

exchange area

Sub-cooling

Pre

ssu

re

Enthalpy

Condenser

Evaporator

Exp

an

sio

n

Theory and Effects

1st effect : Refrigerant pressure loss reduce Long and high rising piping 2nd effect : Cooling capacity gets improved In a thermodynamic point of view

Innovation 2 – Cyclone SCC

Contents

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Inverter Technology of Multi V III

Inverter Technology Controls the Refrigerant Flow by Varying the

Compressor Revolution as per the Cooling load.

Micro processor

& Inverter logic

Inverter Scroll

compressor

Sensor less Control

PWM

●

●

● U

V

W

50Hz

Revolution

Low

High

Cooling load

Partial load

Full load

Variable

Refrigerant

Flow

Cooling

Capacity

Ambient Temp : 35℃

Only 1 room cooling

Ambient Temp : 46℃

All rooms cooling

EEV

EEV

Partial capacity

Full load

20Hz

120Hz

Contents

18/60

How it works?

Control by remote controller of users

INV ST1 INV ST1

18

CPU CPU CPU CPU

P

Contents

19/60

How it works?

Control of the refrigerant Flow by Electronic Expansion Valve

T1 = Set temperature from Remote controller air temperature

T2 = Suction air temperature sensor

T3 = Inlet refrigerant temperature sensor (liquid)

T4 = Outlet refrigerant temperature sensor (gas)

Suction

Dis

charg

e

Blower speed

Liquid

Gas

Electronic expansion valve

(0~1350 pulses)

T3

T2

Blower

T4

T1

Control

Box

EEV

Contents

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How it works?

Multi V control low pressure of system in case of cooling operation

Cooling

comp

Fan SC EEV

Indoor

EEV

Component Cooling Mode

Compressor Low Pressure

Fan High Pressure

Indoor EEV Superheat control

SC EEV Superheat of Sub

Cooling

Pressure

Target low pressure

Time Start

Target high

pressure

Compressor control ( speed up by inverter )

Fan control ( speed up by inverter )

Contents

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Owing to VRF Technology, Multi V is the Brand Name of LG.

What is LG Multi V?

Multi V is the LG VRF system: -

Compared to the Common On-Off Controlled Compressor,

the Inverter Controlled Compressor is able to run the proper

revolution (Hz) in order to provide the best efficiency (power

Consumption), Exceptional dehumidification& Temp Control.

On-Off system Inverter system

Contents

Multi V System Layout

Combination of Maximum 64 Indoor Units

Console

ARTCOOL

Gallery

ARTCOOL

Mirror High static

duct

2Way

CST

4Way

CST

Max. 48HP

Low static

duct

1Way

CST

Refrigerant Pipes

Y Branch

IDU combination Rate

Multi V III : 130 % ■ Multi V III – Tropical Model

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Contents

Product Roadmap – Multi V Outdoor

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Single unit max 16Hp, 3 Unit combination is possible (Max 48Hp)

Single unit max 16Hp

8 &10HP Medium 12 , 14 & 16HP Large

Combination 48Hp

48HP Max

7k 9k 12k 15k 18k 24k 28k 36k 42k 48k

2.2 2.8 3.6 4.2 5.6 7.1 8.2 10.6 12.3 14.1

5k

1.6

Btu/h

kW

ART COOL Series

SRAC

Ceiling Cassette

Ceiling Concealed Duct

Floor Standing

Mirror

Ceiling & Floor

Ceiling Suspended

Wall Mounted

1Way (Art)

2Way

4Way

High Static

Low Static

Built-in

With Case

Without Case

Gallery

Console

Fresh air Intake

76k 96k

23.9 30.2

Product Roadmap – Multi V Indoor

Multi V & AHU

Large capacity with No BMS)

Control Kit

Temp. Senor / RA, SA(essential), OA, Mix(optional)

Humid. Senor / RA, SA, OA(optional)

Damper Actuator / EA, OA, Mix(optional)

Differential Pressure switch(optional)

Valve for Humidifier(optional)

CO2 Sensor(optional)

Smoke Detector(optional)

Optional

RA EA OA SA

Expansion Kit AHU

Outdoor Unit

Wired

remote controller

Communication wire

Connection Pipe Thermistor

Signal (On/Off)

Signal (DC0~10V)

Expansion Kit

Multi V & AHU

Large capacity with Communication Kit & BMS

Room air

Temp Sensor

(should be

installed into

the return air part)

Expansion Kit

Outdoor Unit

Comm. Kit

Optional

Wired

remote controller

Connection Pipe

Communication wire

Thermistor

Signal(On/Off)

AHU

RA EA OA SA

Expansion Kit

Contents

27/60

Introduction of Multi V III Tropical

LG Multi V is the most strong VRF system.

TUV certification for continuous operation under 54℃ during 24 hours.

Outstanding Performance

Contents

28/60


LG Multi V is the most efficient VRF system. COP Max 4.3 at rated

condition

BLDC

inverter compressor

New refrigerant

distributor

Sine wave

inverter control

Cyclone

sub-cool circuit

High static

propeller fan

BLDC

Inverter Fan Motor

Wide Louver fin in

Heat Exchanger

Heat pump model (8HP), T1 condition

Coefficient of Performance (COP) = Cooling capability

Energy consumption

3.4

4.3

conventional

26%

COP comparison

[ Average value]

-. kW / Ton = 0.87 @ T1

-. kW / Ton = 1.10 @ T3

COP data


Contents

31/60


Extending pipe length and elevation

Total piping length

Actual longest Piping length (Eqvlnt)

Longest piping length after 1st branch

(Conditional application)

Level difference between ODU and IDU

Level difference between IDU and IDU

Level difference between ODU and ODU

1000m

200m

(225m)

40m

(90m)

110m

15m

5m

Project R&D Center Building

Const. Dim 5,619.14 m²

Type R&D Building

Location Seoul. Korea

TTL Dim. 84,307.09 m²

Scale 5F ~ 20F

Test building

Level Difference

Between ODU and IDU

Max110m

Longest piping

length

Max 225m


Contents

32/60


Design & installation degree of freedom increase

( Fan External static pressure - Max 8mmAq)

Conventional


Contents

33/60


8 Stages of night silence operation are possible during the night time.

It can give comfort to owner and a neighbor.

Night silence operation

100 Capacity

Sound level

Load

night day

day

8:00 12:00 4:00 8:00 Time (am)

8:00 12:00 4:00

Mode end Mode start

Ambient temp ↓

Smart Functions

Contents

35/60


Minimizing any inconvenience that may occur in an emergency

situation

Back-up operation _Compressor

Malfunction

Back-up operation

Back-up operation _Unit

All single unit of Multi V III tropical has more 2 compressors.

Malfunction

Back-up operation

Smart Functions

Contents

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To make life span of compressor even, alternative operation is

possible.

Alternative operation

ON OFF

Smart Functions

Contents

37/60


Automatic test run, refrigerant amount check, real-time inspection

and back-up operation for parts and sensors, maximizing reliability of the

product & minimizing installation and maintenance time.

Fault Detection and Diagnosis (FDD)

01 Automatic test run

02 Refrigerant amount check

03 Real time diagnosis (refrigerant and parts)

04 Real time back-up (compressor and sensors)

05 Refrigerant recovery function

Smart Functions

Contents

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Easy and fast test run. Auto test run function help you to save the

checking time during the final stage of installation

Automatic test run _ FDD

Conventional

test run

Auto Test Run

Setting LGMV PC 100% operation

1Unit operation

Report

Report Start

Sensors

Operating cycle

Electric status

Refrigerant amount

Auto test run check list

60% Time Save

Report by HTLM

Smart Functions

Contents

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This kind of mistake can happen in site. However problem is that it is

very hard to find the reason because it is not commonsense mistake. But

Multi V can check it automatically for the best installation.

Incorrect piping notice _ FDD

Incorrect piping

(liquid line + gas line)

Incorrect communication line notice _ FDD

Incorrect communication line

communication line

Refrigerant piping

Smart Functions

Contents

40/60


Real-time automatic fault prediction function

Multi V III allows you to check the current status for the sensors and the EEV,

which are the major components for system control, through a test run

Sensor

EEV

Sensor

Outdoor unit Indoor unit

Temperature sensor

Pressure sensor

8

2

3

0

Smart Functions

Contents

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Pump down and out function can reduce the refrigerant discharge.

Pump down When an indoor unit malfunctions, this function collects the refrigerant remaining in

the piping line or that unit to an outdoor unit

When an outdoor unit malfunctions, this function collects the refrigerant in another

indoor unit or a piping line

Transfers refrigerant

Transfers refrigerant

Malfunction

Malfunction

Pump out

Smart Functions

Contents

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4way piping provides a different installation method. So It can reduce

installation cost.

4way piping

Installation of bottom piping is available.

LG provide accessory for easy installation.

Left

Front

Bottom

Right

Bottom direction

Piping cover needed

Not good looking

Smart Functions

Contents

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Easy to install refrigerant pipe & Easy maintenance (Standing SVC)

Service area reduction and Easy standing service and maintenance

Conventional

Front SVC Area

900 C/Box Open area

500 SVC Area

Standing service

available

50%

Smart Functions

Contents

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Quick and right service is necessary. Black Box built in Multi V

records operation data for 3 minutes. SVC engineer can analysis

the problem and take quick and right action owing to operation

history.

Black Box for data acquisition

③ Error

occurred

• Ambient temp.

• High pressure

• Low pressure

• Sensor status

• Operation data etc.

④ SVC

-. Analysis with recorded data &

-. Quick and right service

② Record operation data

※ SD memory module

: 3 months data recording

① 3 minutes

Smart Functions

Green Building Initiative LEED Regulations

The LEED® green building certification program is an initiative by The U.S. Green Building Council, Inc. (USGBC®) to positively impact our natural environment, economy, health, and productivity through well designed buildings, energy efficient equipment, and high quality material. Today, there are many breakthroughs in building science, technology, and operations that are available for designers and building owners to maximize both economic and environmental performance of their buildings. The green building movement offers an unprecedented opportunity to respond to the most important challenges of our time, including global climate change, dependence on non sustainable and expensive sources of energy.

LEED 2009 for New Construction and Major Renovations

100 base points; 6 possible Innovation in Design and 4 Regional Priority points

• Certified 40–49 points

• Silver 50–59 points

• Gold 60–79 points

• Platinum 80 points and above

Green Building Initiative LEED Regulations

1. Sustainable site (26 Pts)

2. Water Efficiency (10 Pts)

3. Energy & Atmosphere (35 Pts) 31 Pts LG can address

4. Material & Resources (14 Pts)

5. Indoor Environmental Quality (15 Pts) 4 Pts LG can address

6. Innovation in Design (6 Pts) 5 Pts LG can address

Project Name Brighton College

Building Type School

Project owner Bloom Properties

Consultant Name Implement Consultant

Contractor Name Emirates Link Maltauro

Place/ City UAE – Abu Dhabi

Completion Date September 2011

Type Of Units Multi V& AHU Units

Total Capacity 1,200_Ton

Total Project Value 1,100,000_$

49

Land Mark Multi V Project

Important requirement of the client

• BMS compatible AC system

• The minimum Operating cost

• Higher emphasis on Indoor air quality (IAQ)

• Reliable operation, at 54 deg C Ambient

Educational

50

Project Name GEMS American Academy


Project owner GEMS Education

Consultant Name National Engineering Bearu

Contractor Name Trinity Engineering Services



Type Of Units Multi V& AHU Units.

Total Capacity 1,112_Ton.

Total PJT Value 1,136,000_$.

Important requirement of the client

• BMS compatible AC system.

• The minimum Operating cost.

• Higher emphasis on Indoor air quality (IAQ).

• Reliable operation, at 54 deg C Ambient.

• Note: LG award extended to other Products.

Land Mark Multi V Project Educational

Project Name Refurbishment of 8 Schools


Project owner Abu Dhabi Education Council

Consultant Name Conseco International

Contractor Name Different Contractors



Type Of Units Multi V



Notes

• 3 Schools Awarded to LG out of 8.

• Electricity Bill is a Major Concern of Government, as

such they remove old units and adopt the VRF system


Project Name Refurbishment of 10 Schools


Project owner Abu Dhabi Education Council

Consultant Name Ian Banham and Associates

Contractor Name Different Contractors



Type Of Units Multi V & FAHU/ AHU Units



Notes

• LG for the 2nd Year in a row awarded a part of these

Schools ( Five Schools Awarded to LG out of 10)

• LG delivered 26 FAHU/ AHU along with the Multi V

• Electricity Bill is a Major Concern of Government, as

such they remove old units and adopt the VRF system


53

Project Name Khaitan Police HQ

Building Type Government

Project owner Ministry of Public Works

No Of Floors G+M+2 Building

Consultant Name Ministry of Public Works

Contractor Name

Place/ City Kuwait

Completion Date November 2011


Total Capacity 200_Ton

Total Project Value 240,000_$

Client requirements

• Centrally control the AC units from one location,

• MEW (Ministry of Electricity & Water) Approval

• Capability of Working in ambient temperature of 54 °C

without tripping.

Land Mark Multi V Project Government

54

Project Name Korean Embassy

Building Type Government

Project owner South Korea

No Of Floors G+6 Building

Consultant Name Ministry Of Interior

Contractor Name M/s Imtiyaz

Place/ City Kuwait

Completion Date October 2011




Client requirements

• Centrally control the AC units from one location,

• Group control multiple units serving the same zone.

• Capability of Working in ambient temperature of 54 °C

without tripping.


Project Name Oman Botanic Garden

Building Type Commercial Building

Project owner OBG


Consultant Name ALATAC

Contractor Name Mercury

Place/ City Oman Muscat

Completion Date June, 2012




Notes

•Project for cultivating rare plants.

•Client insisted for eco friendly and energy saving techn

ology.


56

Project Name Arabian Horse Stud

Building Type Lab & Care Center - 10 Horse Stable to His Highness

Project owner Sheikh Mohammed Bin Rashid Al Maktoum

Consultant Name Engineer’s Office

Place/ City UAE – Dubai

Completion Date December 2009

Type Of Units Multi V, (40 ODU, 400 FCU)



Client requirements

• Sustainable design with green Refrigerant.

• The lesser the better power consumption.

• Capability of Monitoring& Controlling the AC units, and

auto back up operation.


Project Name Al Gurum Resort

Building Type Residential Development

Project owner Al Dar Properties

No Of Villas 70 Villas – Phase I

Contractor Name Six Construct


Completion Date October 2008




Notes:

• Super Premium Villas, the Selling price of each villa

is around 25 Million AED

• BMS compatible AC system.

• Compatible to Home Net.

• Reliable operation, at 54 deg C Ambient

Land Mark Multi V Project Residential

Project Name Abu Dhabi International Shooting Club

Building Type Residential Development

Project owner IMCC

No Of Villas 385 Villas

Contractor Name Fibrex, Thermo


Completion Date June 2011

Type Of Units Multi V, (385 ODU/ 4,000 FCU)


Total PJT Value 6,800,000_$

Notes

• Estidama Compliance Pearl 1

• Electricity Bill for the owners/ Tenants of the Villa

• Reliable operation, at 54 deg C Ambient.


Project Name Adearest Owner’s Villa

Building Type Residential

Project owner Adearest

No Of Villas 3 Big Premium Villa

Contractor Name Adearest

Place/ City UAE – Sharjah

Completion Date Aug 2008



Total PJT Value 250,000_$

Notes

• Project originally designed with Daikin VRV

• Fast delivery & Commissioning support , help LG to

win the PJT


60

Project Name Laya Orchid Hotel

Building Type Hospitality

Project owner Laya hospitality


Contractor Name Envicon Emirates


Completion Date January 2012




Notes

• Compatibility with BMS system.

• Project originally designed with Air Cooled Chillers and

then converted to VRF to reduce the Electric power

consumption.

•LG solution extended to include HA& Hotel TV.

Land Mark Multi V Project Hospitality

Project Name Dhalak Resort

Building Type Resort for Qatar Emir’s Family

Project owner Qatar Dair

Consultant Name W S Atkins

Contractor Name QDVC

Place/ City Dhalak, Eritrea

Completion Date Sept 2010


Total Capacity 275_Ton.

Total PJT Value 370,000_$.

Notes

• Less Outdoor space available

• LG provided full support from design, installation, SVC


62

Project Name Savanah Flamingo Resort

Building Type Hospitality

Project owner TDIC (Tourism Development & Invest. Co) (Abu Dhabi Gov)

Consultant Name W.S. Atkins

Contractor Name Al Shafar Contracting


Completion Date June 2011

Type Of Units Multi V & AHU



Notes

• Estidama Pearl 2 Compliance.

• Electric Power source is Diesel Generator, so it’s a mus

t to reduce the power consumption ASAP.

• Capability of working up to 54 of ambient temperature


63

Project Name ZUMA Restaurant

Building Type Restaurant

Project owner ZUMA/DIFC

Consultant Name Design & Build - Penguin

Contractor Name Penguin Engineering


Completion Date July 2008




Notes

• District cooling connection was not enough

• Operating cost was also a concern.

• Limited condensing unit space at the parking area


64

Project Name Belhoul Hospital

Building Type Hospital

Project owner Belhoul Life care


Consultant Name Nutek

Contractor Name ARJ






Notes

•Project originally designed with Air Cooled Chillers and

then converted to VRF to reduce the cost of Electric

Connection and Electric power consumption,

•Offered with Central Controller.

Land Mark Multi V Project Hospital

65

Project Name Al Jazi Tower

Building Type Commercial Offices

Project owner Al Khaliji HQ Bank

No Of Floors G+18 Building, 2nd, 3rd7 4th Floor Only

Place/ City Qatar





Notes


then converted to VRF to reduce the connecting load

•Client required individual billing for the offices

• Premium AC which is capable of handling high

elevation building

Land Mark Multi V Project Commercial

66

Project Name Ajman Bank

Building Type Bank

Project owner EDARA


Consultant Name Mac Nally Consultant

Contractor Name

Place/ City UAE – Ajman





Notes

• Project originally designed with Air Cooled Chillers and

then converted to VRF to reduce the power consumption,

• Client required individual billing for offices.


67

Project Name Dubai Bank

Building Type Bank

Project owner Dubai Bank


Consultant Name Engineer’s Office

Contractor Name SS. Lootha Constructions


Completion Date July 2009




Notes


then converted to VRF to reduce the cost of

Electric Connection and Electric power consumption,



68

Project Name Al Meraas Sales Center

Building Type Office Bldg

Project owner Al MERAAS

No Of Floors G+M Building

Consultant Name SPW Consultant

Contractor Name


Completion Date Nov 2009




Notes

• Project Demands for less operational cost, as client

need to pay the electricity bill

• Offered with Central Controller.


Project Name Airport Heights ECGA

Building Type Commercial Building

Project owner ECGA

No Of Floors

Consultant Name IBN Khaldoun

Contractor Name HJB

Place/ City Oman Muscat

Completion Date Under Commissioning




Notes

• It’s a Ministry of Finance PJT

• Green Technology

• Installation Flexibility and Network solution


PROJECT UNDER COMMISSIONING

Project Name Yahya Group Holding Building

Building Type Office Building

Project owner Yahya Group Holding


Consultant Name Al Abraj

Contractor Name OGE

Place/ City Oman - SOHAR





Notes

•Project owner looking for energy saving technology in o

rder to reduce annual electrical cost.

•LG proposed Multi V and highlighted annual savings


Project Name British Council Building

Building Type Office Building

Project owner British Council


Consultant Name Majaan

Contractor Name Cemec

Place/ City Oman - Muscat





Notes


then converted to VRF to reduce the cost of Electric

Connection and Electric power consumption,



72

Project Name Hubara Bird Culture

Building Type Laboratory Center

Project owner Abu Dhabi Authority For Culture& Heritage (ADACH)

Consultant Name Lab Design

Contractor Name Adearest

Place/ City UAE – Al Ain

Completion Date August 2008




Client Requirements

• Sustainable design with green Refrigerant

• The lesser the better power consumption

• Capability of Monitoring& Controlling the AC units

Land Mark Multi V Project Miscellaneous

Download - VRF system presentation !

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