Chiller vs VRF 12345

(1)

Chiller vs VRF system

LG Electronics Inc.

LGEHQ CAC Team

(2)

1. Design Comarison

VRF is very simplifed rerigerant piping system. More exible than water p

VRF is very simplifed r

erigerant piping system. More exible than water pi

Chiller

MULTI V Plus Ⅱ (VRF) MULTI V Plus Ⅱ (VRF) Chiller system Chiller system •

• Otdoor nit !"ir#cooled type$ Otdoor nit !"ir#cooled type$ •

• Indoor nit Indoor nit •

• %e&riger"nt piping %e&riger"nt piping •

• Chiller Chiller •

• 'C( !'"n Coil (nit$ 'C( !'"n Coil (nit$ •

• A)( !Air )"ndling (nit$ A)( !Air )"ndling (nit$

System System composition composition Feature Feature •

• Cooling to*er Cooling to*er •

• +"ter piping, -ct *oring +"ter piping, -ct *oring • • +"ter pps +"ter pps

!ystem concet

Desin Desin Desin

(3)

#et$or%

Feature _{Chiller system}

• Coplic"ted *iring

MULTI V Plus Ⅱ (VRF)

• iple *iring Desin

Desin !peration Installation Commissionin Maintenance Relia"ility

Easy network wiring

1. Design Comarison

"et#or$ %esign

(4)

1. Design Comarison

Total management

Desin

Desin !peration Installation Commissionin Maintenance Relia"ility

'(an)*act)rer+

VAV ,o-es s)lier

Control system

Feature _{Chiller system} _MULTI_V_Plus_Ⅱ_(VRF)

(For VRF M

(For VRF Man!a"t!rer

an!a"t!rer provide all e#!ipment

provide 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.

(5)

Desin Commissionin

MULTI V Plus Ⅱ (VRF) Chiller system

• 3he systes condition only the necess"ry roos *ith rear& to user &eman&s'

• 3he systes coonly condition the entire ilding "t predeterined ties, *ith no rear& to user &eman&s' (ery hot mi&niht $ee%en& holi&ay etc)

Capacity control

Feature

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

/etter Caacity oeration0

erating Area

 Limite% oeration0

In%ivi%)al oeration

!peration

!peration Installation Maintenance Relia"ility

(6)

Temerat)re control

Feat)re

_{Chiller system}

Re3)ire 1 or 2℃ ℃

(4LTI V &l)s 5VRF6

Ⅱ

Very recise 7 8.9℃

're"ise temperat!re "ontrol

30

30 2

2

20

20 !

!

18

28

28 :8

:8

;8

98

98 <8

<8

=8

Cooling

(I".

Chiller system

MULTI V

system

R o o m t e m  . R o o m t e m

 . ±

8.9

8

_{C *rom set oint}

Desin !peration!peration Installation Commissionin Maintenance Relia"ility

Tem. control

(7)

VRF system doesnt need a d!"t spa"e.

Space *++iciency

Feature _{MULTI V Plus Ⅱ (VRF)}

• "ll re&riger"nt sp"ce Chiller system

• L"rge dct sp"ce

Desin !peration InstallationInstallation Commissionin Maintenance Relia"ility

!ace 5D)ct #or$ing6

(8)

Chiller &)m /oiler Cooling to#er "#n the roo$top%

5(achine room %ra#ing6

)t%oor 4nit "#n the roo$top%

5Roo*to %ra#ing6

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

Installation space

Feature _{MULTI V Plus Ⅱ (VRF)}

• 7o need " "chine roo Chiller system

• 7eed " "chine roo

Installation sace

(9)

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

Chiller system Space *++iciency Feature

&

1>:

CHILLER !?!TE(

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

VRF !ystem

• "ll pipe sh"&t is needed

!ace 5&ie sha*t6

(10)

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.

• System '(pansion is 'asy

-Desin !peration InstallationInstallation Commissionin Maintenance Relia"ility

!ystem e-ansion

(11)

1 step Commissioning

6 steps Commissioning

MULTI V Plus Ⅱ (VRF) Chiller system Commissionin Feature

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

• 5 teps Coissioning • 1 tep Coissioning

@ater coole% chiller 5:6

5;6

Desin !peration Installation CommissioninCommissionin Maintenance Relia"ility

". o* commissioning oint

(12)

Maintenance

Feature

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

@ater coole% chiller 5:6

5;6

• 'ilter cle"ning

• )e"t e9ch"nger cle"ning

• Cycle chec y noteoo !LG :;$ Chiller system

• 'ilter cle"ning • -ct cle"ning

• +"ter pipe_– "inten"nce • <eriodic"l oil ch"nge, overh"l

• <p

• +"ter tre"tent • Cooling to*er cle"ning

Desin !peration Installation Commissionin MaintenanceMaintenance Relia"ility

(aintenance list

(13)

(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$

• #o $ater treatment is nee&e& Desin !peration Installation Commissionin MaintenanceMaintenance Relia"ility

@ater treatment

(14)

Scale cleanin

Feature _{Chiller system} _{MULTI V Plus Ⅱ (VRF)}

 The system is consist o* re*rigerant ies 0 • "o #ater ies  "o scale 5)se

re*rigerant6 • "ee% to clean the #ater ies

System e$$iciency drop ) origin o$ germs

*$ter 2+3year *$ter +year *$ter -+year

18B

29:8B

:9;8B

thic$ness o* scale

E n e r g y L o s (nit =  (nit = >

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

!cale cleaning

(15)

(aintenance !ta**

9. (aintenance Comarison

Maintenance Sta++

(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

(16)

&ie Erosion

<. Relia,ility Comarison

Desin !peration Installation Commissionin Maintenance Relia"ilityRelia"ility

Pipe *rosion

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

• e$rigerant does not cause corrosion there$ore no pipe damage occurred

• 1ipe erosion can cause leaage. • System capacity reduction.

• rines use increase corrosion, anti corrosion additives needed

Cooer &ie0  @ater ie lea$age 0

(17)

Category

1roduct

4nitial Cost

"5S6%

4nitial Cost

"5S6%Total

7ater

Cooled

Chiller

Chiller 1rice

:99;;

==8=

*85 9 Cooling

Tower 9 1ump,

1rice

1;8<9

4nstallation

::=1

::

/ulti :

=;;

118<<8

4nstallation

2:91<1

• *pril 200 •Cooling #nly • *ir 6uct 4ncluded

Initial Cost

R)nning Cost

(aintenance Cost

Total cost

• Tye o* /)il%ing !hoing (all

• Total area ;,000 m2 <  storey uilding <!,00 m29$loor • *ctual cooling area < !,00 m2 = 0 > =  ?loor @ -,200 m2 • Cooling Aoad "Tr% 9 m2 < -00 Tr =!2000 tu98r @ !,! tu9m2 • E3)iment  @ater coole% chiller >()lti V )nit

B 7ater Cooled Chiller <Trane 7ater cooled chiller 30 Tr ( 2 set @-00 Tr  300 ac up

1umpDs @E00 Tr ( 2 set

*85 @ 000 C?/ ( 3 set

Cooling Tower @!200 Fpm ( 3 3 ac up B :? System <AF /ulti : 1lus 44

E 8p ( !; set@;!2 8p -2 Tr • Air con%itioning time  eration

B !3 hour a day "0;<00 + 22<00% B 30 days a month

B average load by month



_{'&uipments ) 4nstallation cost}

'&uipments ) 4nstallation cost

(4LTI V vs Chiller

(18)

()lti V r)nning cost is <9 B comare to chiller

Category

1roduct

unning

Cost

"5S6%Total

7ater

Cooled

Chiller

Chiller 1rice

:8<=

*85 9

Cooling

Tower 9

1ump, 1rice

/ulti :

1rice

28819

•ased on G7 data chiller9/ulti : •ased on, Thailand electrical standard • *4B*ir conditioning ) e$rigeration 4nstitute

R)nning cost

!avings ) to

19

th

_{yr  :9B}

Chiller

()lti V



_{'lectrical cost}

(4LTI V vs Chiller

=. Economic analysis

(19)

Category

1rice

/aintenance

Cost

"5S6%Total

7ater

Cooled

Chiller

Chiller 1rice

:21==

*85 9 Cooling

Tower 9 1ump,

1rice

/ulti :

1rice

11;<

Chiller

()lti V

(aintenance

Cost savings

4 to 19

th

_yr

 <<B

•/aintenance breadown

•Chiller system B3! 5S6 9 t 9 yr.B  times9yr •/ulti :B E 5S6 9 4ndoor 9 yr.B  times9yr

B !E 5S6 9 #utdoor 9 yr.B  times9yr

()lti V maintenance cost is 2; B comare to chiller



_{/aintenance cost}

/aintenance cost

(4LTI V vs Chiller

=. Economic analysis

(20)

Category

Chiller system

:? system

emars

'conomic

*nalysis

4nitial cost

"5S6%

--,0;-

;2-,0-unning cost

"5S6%

30,;

200,!

Shopping

mall

?, ;,000

㎡

/aintenace cost

"5S6%

32,!--

!!,E

Total cost "5S6%

!,2!-,;-2

!,!3,3

'1

B

!.- years

=. Economic analysis

(21)

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

'1 "rea 'ven 1oint%

< !.- Jears

ACC "! years%

'1

!

st

_year

₂

nd

_year

_{3rd year}

_{Eth year}

 28 J18 J;8 J=8

/E& 

1.= ?ears

Cost savings

 2B

/E& 

1.= ?ears

. LCC

(22)

Chiller

()lti V

122

118 == :2 :8 288 11

1:21

=B

&ro%)ct K Installation (aintenance Electrical Fee

Chiller

()lti V

92

2:B 19B B ==B _=:B ;B

;2=;

:9B

&ro%)ct K Installation (aintenance Electrical Fee

4nitial Cost "!

st

_year%

5  4! 6

ACC "! years%

. LCC

(23)

(24)

(25)

(26)

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

0aila"le throuh the 0RI $e" site1 ...'0RI'!R2