chiller vs vrf 12345

7/26/2019 Chiller vs VRF 12345

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Copyright 2008 All rights reserved LG Electronics Inc.

Chiller vs VRF system

LG Electronics Inc.LGEHQ CAC Team


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1. Design Comarison

VRF is very simplifed rerigerant piping system. More exible than water pVRF is very simplifed rerigerant piping system. More exible than water pi

Chiller

MULTI V Plus (VRF)Chiller system

Otdoor nit !"ir#cooled type$

Indoor nit

%e&riger"nt piping

Chiller

'C( !'"n Coil (nit$

A)( !Air )"ndling (nit$

System

composition

Feature

Cooling to*er

+"ter piping, -ct *oring

+"ter pps

!ystem concet

Desin

Desin Commissionin!peration MaintenanceInstallation Relia"ility


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#et$or%

Feature Chiller system

Coplic"ted *iring

MULTI V Plus (VRF)

iple *iring

Desin


Easy network wiringEasy network wiring

1. Design Comarison "et#or$ %esign

AC&


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1. Design Comarison Total management

Desin


'(an)*act)rer+

VAV ,o-ess)lier

Control

system

Feature Chiller system MULTI V Plus (VRF)

(For VRF M(For VRF Man!a"t!reran!a"t!rerprovide all e#!ipmentprovide all e#!ipment

Simple control structure

No additional control provider

Central control and energy monitoring with

low cost available

Complicated control structure, additional

control manager in the system needed,

increasing cost

Third part control provider needed,

interconnectivity problems.


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Desin Commissionin


3he systes condition only the

necess"ry roos *ith rear&

to user &eman&s'

3he systes coonly condition the entire ilding

"t predeterined ties, *ith no rear& to user &eman&s'

(ery hot mi&niht $ee%en& holi&ay etc)

Capacity

control

Feature

$ter o%"e ho!rs operation& VRF "o!ld be operated or the !ser demands.$ter o%"e ho!rs operation& VRF "o!ld be operated or the !ser demands.

/etter Caacity oeration0

erating Area

Limite% oeration0

In%ivi%)al oeration

!peration

!peration MaintenanceInstallation Relia"ility

2. eration Comarison


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Temerat)re

control

Feat)re Chiller system

Re3)ire

1 or 2

(4LTI V &l)s 5VRF6

Very recise

7 8.9

're"ise temperat!re "ontrol're"ise temperat!re "ontrol

3030

22

2020

!!

1818 2828 :8:8 ;8;8 9898


7/266/14 Copyright 2008 All rights reserved LG Electronics Inc.

VRF system doesnt need a d!"t spa"e.VRF system doesnt need a d!"t spa"e.

Space

*++iciency

Feature MULTI V Plus (VRF)

"ll re&riger"nt sp"ce

Chiller system

L"rge dct sp"ce

Desin Commissionin!peration MaintenanceInstallationInstallation Relia"ility

!ace 5D)ct #or$ing6:. Installation Comarison



Chiller

&)m

/oiler

Coolingto#er

"#n the roo$top%

5(achine room %ra#ing6

)t%oor4nit

"#n the roo$top%

5Roo*to %ra#ing6

VRF system is no need or a ma"hine room.VRF system is no need or a ma"hine room.

Installation

space

Feature MULTI V Plus (VRF)

7o need " "chine roo

Chiller system

7eed " "chine roo


Installation sace:. Installation Comarison



E%"ient !se o spa"e is possible or VRF systemE%"ient !se o spa"e is possible or VRF system

Chiller system

Space

*++iciency

Feature

& &

1>:

CHILLER !?!TE(CHILLER !?!TE(

L"rge pipe sh"&t is needed &or *"ter piping

MULTI V Plus (VRF)

VRF !ystemVRF !ystem

"ll pipe sh"&t is needed


!ace 5&ie sha*t6:. Installation Comarison



VRF system expansion is very easy with extra o!tdoor ) indoor !nit.VRF system expansion is very easy with extra o!tdoor ) indoor !nit.

Chiller system

System

*,pansion

Feature

Capacity addition is di$$icult

as additional mechanical room, pump, cooling tower,

panel and piping is re&uired.

MULTI V Plus (VRF)

System '(pansion is 'asy

-


!ystem e-ansion:. Installation Comarison



1 step Commissioning6 steps Commissioning


Commissionin

Feature

*here are a lot o "ommissioning points or the "hiller system*here are a lot o "ommissioning points or the "hiller system

5 teps Coissioning 1 tep Coissioning

@ater coole% chiller 5:6

5;6

Desin CommissioninCommissionin!peration MaintenanceInstallation Relia"ility

". o* commissioning oint;. Commissioning Comarison



Maintenance

Feature

Maintenan"e "osts or a M!lti V is lower than "hilled water systems.Maintenan"e "osts or a M!lti V is lower than "hilled water systems.

@ater coole% chiller 5:6

5;6

MULTI V Plus (VRF)

'ilter cle"ning

)e"t e9ch"nger cle"ning

Cycle chec y noteoo !LG :;$

Chiller system

'ilter cle"ning-ct cle"ning+"ter pipe "inten"nce



(For +hiller ,ater treatment is re#!ired or "lean water(For +hiller ,ater treatment is re#!ired or "lean water

&oll)te% Cooling To#er0

.ater

treatment

Feature Chiller system

.ater treatment is re/uire&

!de&icient service c"n c"se legion"ry dise"se in the syste$

MULTI V Plus (VRF)

#o $ater treatment is nee&e&

Desin Commissionin!peration MaintenanceMaintenanceInstallation Relia"ility

@ater treatment9. (aintenance Comarison



Scale

cleanin


The system is consist o* re*rigerant ies 0

"o #ater ies "o scale 5)se

re*rigerant6

"ee% to clean the #ater ies

System e$$iciency drop ) origin o$ germs

*$ter 2+3year *$ter +year *$ter -+year

18B 29:8B :9;8B

thic$ness o* scale

Energy

L

oss

(nit =

(nit = >

(For +hiller Maintenan"e ) "leaning periodi"ally by ex"l!sive "ompany(For +hiller Maintenan"e ) "leaning periodi"ally by ex"l!sive "ompany


!cale cleaning9. (aintenance Comarison


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1/14 Copyright 2008 All rights reserved LG Electronics Inc.

(aintenance !ta**9. (aintenance Comarison


Maintenance

Sta++


(For +hiller +ertifed maintenan"e sta- is needed(For +hiller +ertifed maintenan"e sta- is needed

No need special maintenance sta$$.

'conomic and easy maintenance

The system re&uires certi$ied maintenance

sta$$ not only $or chillers but also pumps,

boilers, cooling towers etc.

/ore e(pensive maintenance cost.

" (aintenance !ta**0 (aintenance !ta**0


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&ie Erosion


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Category 1roduct4nitial Cost

"5S6%

4nitial Cost

"5S6%Total

7ater

CooledChiller

Chiller 1rice :99;;

==8=*85 9 CoolingTower 9 1ump,

1rice1;8Cooling Aoad "Tr% 9 m2 < -00 Tr =!2000 tu98r @ !,! tu9m2

E3)iment @ater coole% chiller >()lti V )nit

B 7ater Cooled Chiller


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()lti V r)nning cost is


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Category 1rice

/aintenance

Cost

"5S6%Total

7ater

CooledChiller

Chiller 1rice

:21==*85 9 CoolingTower 9 1ump,

1rice

/ulti : 1rice 11;


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Category Chiller system :? system emars

'conomic*nalysis

4nitial cost"5S6%

--,0;- ;2-,0-

unning cost

"5S6%

30,; 200,!

Shoppingmall

?, ;,000

/aintenace cost"5S6%

32,!-- !!,E

Total cost "5S6% !,2!-,;-2 !,!3,3

'1 B

!.- years

=. Economic analysis

Initial Cost R)nning Cost (aintenance Cost Total costTotal cost


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ACC "Ai$e Cycle Cost $or ! years% < Chiller .;; /H I /ulti : E.2- /H "-!>%

'1 "rea 'ven 1oint% < !.- Jears

ACC "! years% '1

!st year 2ndyear 3rd year Eth year

28

J18

J;8

J=8

/E& 1.= ?ears

Cost savings 2B

/E& 1.= ?ears

. LCC


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Chiller ()lti V

122

118==

:2

:8

288

11

1:21=B

&ro%)ct K

Installation

(aintenance

Electrical Fee

Chiller ()lti V

92

2:B19B

B

==B =:B

;B

;2=;:9B

&ro%)ct K

Installation

(aintenance

Electrical Fee

4nitial Cost "!styear%5 4! 6

ACC "! years%

. LCC


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A. Cost estimation


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A. Act)al r)nning cost


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A. (aintenance cost


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ARI Release% The "e# !tan%ar% in 288:

0aila"le throuhthe 0RI $e" site1

...'0RI'!R2

&ortion ,y cooling loa% 5B6&ortion ,y cooling loa% 5B6

I&LVI&LV

RR

A&LVA&LV

8.818.81JJ 8.;28.;2JJ 8.;98.;9JJ 8.128.12 A / C DA / C D

11

7 9 7 "*4 1art load weighting $actors%

1B1B ;2B ;9B;2B ;9B 12B12B

188B =9B 98B 29B188B =9B 98B 29B

@EIGHTED 5B6@EIGHTED 5B6

ARI998>98288:ARI998>98288:

Cooling Loa%Cooling Loa%

A. Energy e**iciency 5I&LV6

chiller vs vrf 12345

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