3 mitsubishi electric-vrf technology-puct eeip 1-2012

8/9/2019 3 Mitsubishi Electric-VRF Technology-PUCT EEIP 1-2012

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Texas Utility Innovations

A discussion on

HVACs Variable Refrigerant Flow (VRF)Technology & IR fficiency !etrics

"te#e $ones % "outhwest usiness 'nit Coercial !anager !itsubishi lectric

*ic+ Con+lin ,- A./ ./ C! A00lication ngineering!anager !itsubishi lectric


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U/ H!A Industry ,vervie'

Coercial2Industrial HVAC

Choices=1 .ac+age "ystes

1 "0lit "ystes

1 VRF "ystes

,ight Coercial2Residential

HVAC Ty0es=

1 .TACs

1 'nitary

1 4indow units

1 4all%ounted units

1 Radiant1 -uctless (-H.)

*Room AC not included in analysis

Source: AHRI and BRSI, September 2012


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'" Vertical !ar+et >00ortunities

?:@ HVAC 'nit 6rowth

Vertical Market Year Market Size (Units)

Education7B :/

7:7 ?/

Government -ilitary7B ;D/

7:7 B/

Health are7B B/

7:7 :D8/

2od%in%7B D/

7:7 8D/

-ulti&amily7B 7B/

7:7 ?:B/

,$$ice 3uildin%7B BD/

7:7 :D/

Source: FI 200! "#S# ar$et Construction %&er&ie'


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(

Ductless Heat Pumps $or /in%le 4ones(567 8ears H!A -ar.et /uccess)

1Hi)ly +icient

2- S++R10#- HS.F/o duct'or$ /o duct

losses

1Indi&idual Room Control

1+tremely uiet13 4 5! dB

1Cold Climate Capable1006 capacity at ( F#

!26 capacity at 715 F#


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!#& $or ommercial 3uildin%s

1"p to (0 indoor units peroutdoor

182,000 4 5-0,000 B9"H1Simultaneous eatin) and

coolin)

1+ner)y reclaim

1I++R up to 25#3

1C%. up to #!8


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What is !#& Technolo%y+


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I9!E#TE#driven ompressor

Time

#oo

mTemperatu

re

1 nables ca0acity o0eration as low as D@

1 "iEing fle5ibility with #ariable ca0acity

1 nables long runties

1 Reduces co0ressor cycling

1 I0ro#es te0erature control

!#&!#&

!#&

/ETP,I9T

,9!E9TI,9A2


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Hi%h /tartin% urrent

Traditional H!A /ystem 'ithout

Inverter Technolo%y


10/35uilding 'se>ccu0ant ,oad"olar ,oad

Diversity


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!#& Heat #ecovery Technolo%y

/imultaneous coolin% and heatin%


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!#& Inte%rated ontrols

1 asy to install and o0erate

1 7%wire --C (-irect Control) syste

3 :ga stranded and shielded/ non%0olar

3 -aisy%chain connection

1 CustoiEable control schee with webaccess

1 Indi#idual roo controls

1 Color touch screen centraliEed control

1 Integration into building anageent

syste #ia ACnetGand ,onwor+sG

1 Third%0arty eui0ent control

1 Tenant billing ca0ability


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!#& Ener%yE$$iciency andEnvironmental Impact


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Demand #esponse Tool

VRF Integrated Control "ystes can allow=

1 ,oad shedding by autoatically reducing co0ressorfreuency2hertE (s0eed)9

1 >n2>ff "euencing between Eones to iniiEete0erature discofort

1 Turn off indoor units in se#eral Eones and allowte0erature2huidity drift

1 "euential starting of outdoor units to iniiEedeand 0ower s0i+es


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,- *C ?9

1 Certified= D%D 0oints

1 "il#er= 8%8 0oints

1 6old= %B 0oints1 .latinu= ; 0oints

1 nergy and Atos0here= VRFCan achie#e u0 to 7: 0oints

1 n#ironental Juality= VRF can

achie#e u0 to se#en 0oints

Utili*in% !#& 'ith 2EED


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Ener%y and Atmosphere redits

1 ac: >0tiiEe nergy 'sage

3 Total energy usage of building

3 Verified by odeling #ersus base building

1 Ac8 !easureent and Verification3 Verify actual building o0eration

3 !onitor eui0ent o0eration through integrated software


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!#& /ystems and Ener%y -odelin%

1 nergy usage and cost for VRF

systes can be odeled usingnergy.ro

3 nergy.ro uses ->79:e toodel and co0are VRF toother HVAC syste

1 nergy.ro is a00ro#ed use with,- Ac:


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EA: Ener%y ost /avin%s

!#& Total Ener%y ost /avin%s


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,vervie' o$ /ystem /tandards

1 AHRI :7? Co#ers ulti%s0lit air conditioners and ulti%s0lit heat 0u0s with

distributed refrigerant technology

1 A"HRA 9:!iniu reuireents for energy efficient building design

Higher standard for VRF syste Integration nergy fficiencyRatio (IR) in A"HRA standard 9: ($uly 7:7)

1 -> -> to reference AHRI :7? "tandard and A"HRA 9:

iniu efficiency standards in Code of Federal Regulations 0art:/ section D?:


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Ho' IEE# Wei%htin% &actors DevelopedHo' IEE# Wei%htin% &actors Developed

1 To Develop the $our 'ei%htin% $actors $or the IEE# e;uation as 'ell as

the am"ient temperature schedule< a comprehensive model 'asdeveloped =

Weather Data -odel &or ities &rom :> U/ limate 4ones

1 Percenta%e o$ Time In The &our 2oad 3ins :66?< @>?< >6?< >?

1 Avera%e Am"ient &or Each 2oad 3in

5 3uildin%s types 0 ,$$ice (B6?)< #etail (56?)< /chool (56?)

1 Each "uildin% type 'ith its load pro$ile vsC am"ient schedule /ales !olumes Percenta%e 3y Each limate 4ones

Houston Dry"ul" Temperature Pro$ile #etail

7

78?

88B

8?

DB

D7

?7D

7D

7?

:?;

8:8

:

7

?

D

8

B

: 8 ;8 ; B8 B 8 88 8 D8 D ?8

Temperature

AnnualHours

Miami FL

Houston, TX

Phoenix, AZ

San Francisco CA

Baltimore MD

Salem, OR

Chicao, !LBoise, !D

Burlinton, "T

Helena MTDuluth, M#

$l Paso, TX

Al%u&uer&ue, #M

Mem'his T#


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/acramento Drill To'er

!#& ase /tudy

1 ,'ned "y the ity o$ /acramento< A

1 oncrete 3uildin% 'ith Upper :5 "ein% a'ater tan.

1 Approximately 5 o$ the $irst $loor area are

o$$ices and a trainin% room< arran%ed li.e adonut

1 ,ri%inal H!A 'as B pipe ducted $an coils

3 mitsubishi electric-vrf technology-puct eeip 1-2012

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