westpoint vrf system

8/15/2019 Westpoint Vrf System

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WESTPOINT Commercial Air conditioners

INVERTER VRF COMMERCIAL A/C


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Contents

What’s WMV VRF!1

Residential central air AC2

WMV ener"# cons$m%tion anal#sis3

&i"ital scroll VS In'erter 4


3/22

Part GMV & VRFⅠ

Review of VRF(VRV) Variable R efrigerant Flow

&e'elo%in" (rom traditional s%lit t#%e air conditioner)

Consist o( o$tdoor $nits* indoor $nits* Re(net* controlleretc)

One o$tdoor $nit can dri'e at least +, indoor $nits* -ith-hich di((erent ca%acit# and a%%earance)

A%%lied intensi'el# in o((ice .$ildin"* hotel* hi"h "radede%artment* 'illa etc)


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Introduction of GMV

W– W!"P#I$"

M – Multi%connected (Ma' *+)

V – VRF s,ste-


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+ wa,s to ac.ieve VRV

In'erter Originating from Japan, frequencyconversion;

Electrical adjustment;

&i"ital scrollTechnology from opeland;

Mechanic adjustment;

!otor

!eluctance motor


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'G' WMV in office building

Com.ination-ith

O$tdoor (resh

air %rocessor


7/22


8/22

Fa-il, of residential central /C

+) &$ct t#%e Lo- initial in'estment

Indoor air 0$alit# im%ro'e .# introd$ction o((resh air

Re0$ire eno$"h hei"ht to la#o$t the d$ct

Indi'id$al ad1$stment (or sin"le room nota'aila.le


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Mini C.iller%1,draulic s,ste-

All2Water s#stem 3-ater or eth#lene alcohol4

Ado%t Fan coils as terminals* s%ace sa'in"

Witho$t (resh air introd$ction

Indi'id$al control (or each room a'aila.le

5) Mini Chiller


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11/22

Figure Ratio of VRV a22lication in 3a2an

Old .$ildin"

redecoration

Ne- (acilit#


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Part WMV energ, saving anal,sisⅢ

Ne- orientation in -or7in" conce%t

Ado%tin" di"ital scroll com%ressor

8sin" re(ri"erant as heat trans(er medi$m

So%histicated controllin" net-or7

Com.ination -ith heat reco'er# %rocessor

Core (actorsCore (actors

Sa'in" ener"#Sa'in" ener"#


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' $ew orientation in designing conce2t

Traditional

desi"nin" .ase

on the most

se'er o$tdoorcondition)

Pea7 o( EER/COP

sets at %artial

load) 3aro$nd 9:;

o( the ($ll load4

Coolingload

(4)

Wor5ingti-e (4)

Coolingload

(4)

Wor5ingti-e (4)

66 76 87

97 8+ +7 +

&ata ori"inate< American Societ# o( =eatin"* Re(ri"eratin"

and Air2conditionin" En"ineers) 3AS=RAE4

Ratio o( coolin" load thro$"ho$t one #ear ;


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+' /do2t digital scroll co-2ressor

Traditional residential s%lit t#%e AC ado%ts Rotar# t#%e com%ressor

The e((icienc# o( Scroll t#%e com%ressor is hi"her than Rotar# t#%e or

Reci%rocal t#%e com%ressor

Ener"# cons$m%tion can .e red$ced .# +:2+>; com%ared -ith the

reci%rocal t#%e at the same ca%a.ilit#

Co-2aring Ite-s !croll t,2e Rotar, t,2e Reci2rocal t,2e

R +': +'8;+'< +'+;+'<

Volu-etric efficienc, 6':: 6':8 6'9

/diabatic efficienc, 6':= 6':* 6'==

$u-' of 2art in

co-2ression c.a-ber

* 9

Weig.t ratio 6'= 6'= '6

Mac.ining 2recision ;* * 6;*6

#ut2ut 2ower ;6 6'8; ;6


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Core co-2onent of digital scroll

S$ction Pi%e

&ischar"e Pi%e

?Fi@ed Scroll.#2%ass %i%e

Or.it Scroll

Varia.le Ca%acit# Ad1$stment is achie'ed .# PWM 3P$lse2Width2Mod$lation4 'al'e

Loadin"

Idlin"

Ba%< +mm.et-een t-o

scrolls


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/d>ust ca2abilit, out2ut

P$lse2-idth< Maintain a .alance.et-een &emandin" and Pro'idin"

?&i"ital< loadin"2+::;3+4* -hile

Idlin"2:;3:4* (ormin" the se0$ence

: + : + : + : + : + : + : + D))

&i"ital M$lti 8nit

In'erter 8nit C o o l i n "

C a % a c i t #

Ca%acit# &emanded


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*' ?sing refrigerant as .eat transfer -ediu-

In BMV* heat trans(erred 'ia re(ri"erant directl#

The heat amo$nt trans(erred can .e +: times o( those trans(erred .#-ater* and 5: times 'ia air)

Com%arin"< Pro%ert# o( heat trans(er medi$m

",2es of

-ediu-?tili@ed .eat "ransfer a-ount

nerg, consu-2tion(transfer +6 5W

cool load)

Water sensible heat 20.1kJ/kg (△t=5 )℃ 4.8

/ir sensible heat 10.1kJ/kg (△t=10 )℃ 7.5

Refrigerantevaporating

latent heat206kJ/kg 2.6

>9; o( those trans(er 'ia -ater

6>; o( those trans(er 'ia air


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8' !o2.isticated intelligent controlling

Controlling #b>ect

For-ing t.e networ5 Sensors 3tem%erat$re* %ress$re4

Throttlin" de'ices 3electrical e@%ansion 'al'es* %ore %lates4

Ad'anced lo"ical al"orism

Aasic 2rinci2le


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7' Co-bination wit. .eat recover, 2rocessor

To im%ro'e the IA* %eo%le can o%en the -indo-s sometimes* or

install a 'entilatin" (an connect to o$tside

$t coolin" load -o$ld rise* and $n(iltered air -ith insta.le and

$nrelia.le (actor -o$ld %enetrate in)

The Fresh Air =eat2Reco'er# S#stem can sol'e this %ro.lem

Introd$ce more (iltered (resh air into the room

Rec#cle heat or coolin" 3e((icienc# G>;4

Red$ce the amo$nt o( %oisono$s released (rom the .$ildin" material


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".e air route inside t.e s,ste-

+) E@cellent -ater a.sor.a.ilit#

e@chan"in" e((icienc# reaches G>;

5) S$%er (ire2retardant

Sa(e and relia.le

6) Milde-2%roo(* clean health#)

Ret$rnin" air o(

indoor

Cooled (resh air

introd$ced in

E@ha$st air

S$ction o(o$tdoor air

Com%ared to traditional -a# o( 'entilation* Fresh air

%rocessor red$ces 5H; o( ener"# cons$m%tion


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!u--ar,

WMV can .e a%%lied intensi'el# in o((ice.$ildin"* hotel* l$@$r# de%artment* 'illa* etc)

En1o# a hi"h EER/COP $nder %artial load

Com.ination -ith (resh air %rocessor* can

im%ro'e IA sa'in" ener"# 3$% to 6:;4

&i"ital scroll t#%e VRF is more relia.le and

([email protected] than In'erter)

westpoint vrf system

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