Draft Meeting Minutes ASHRAE SSPC...
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Draft Meeting Minutes ASHRAE SSPC 52.2 MOT ‐ General Ventilation Air‐Cleaning Devices for Removal Eff. by Particle Size Saturday, 28 June 2014, 8:00 am – 12:00 pm Room 607 Washington State Convention Center 6 th Floor 800 Convention Place, Seattle, Washington 10019 Votes: Font is Bold, Black Task Groups: Font is Bold, Blue Action Items: Font is Bold, Red ©2012 ASHRAE. All rights reserved. This is a draft document for review only by the cognizant ASHRAE groups and other designated reviewers and is not intended for distribution to any private interests, individuals, or third parties that are not designated as ASHRAE reviewers for this document. This document may not be distributed in whole or in part in either paper or in digital form without the express permission of the chair of the committee originating this document. The appearance of any technical data or editorial material in this draft document does not constitute endorsement, warranty, or guaranty by ASHRAE of any product, service, process, procedure, design, or the like, and ASHRAE expressly disclaims same. 1) Call to Order 8:00 am (5min.) a) Introductions b) Roll call & quorum confirmation Bob Burkhead ‐ present Michael Corbat – not present Kathleen Owen – not present Keith Chesson – present KJ Choi ‐ present Zied Driss – present Chris Fisher ‐ present Len Duello ‐ present Tom Justice ‐ present Gemma Kerr ‐ present Dave Matier ‐ present Phil Maybee ‐ present Bruce McDonald ‐ present Stephen Nicholas – not present John Robertson – not present Christine Sun – present Paolo Tronville – not present NAFA (Al Veeck) ‐ present 13 here, 5 not – we do have quorum 2) Review of the draft agenda – agreed to amend as per the attached final agenda (red type) 3) Review and approval of the New York 2014 minutes – Vote to approve 13‐0‐0‐18 4) Chair’s Remarks ‐ a) Emphasized the prime objective of republication in 2017
Transcript of Draft Meeting Minutes ASHRAE SSPC...
DraftMeetingMinutesASHRAESSPC52.2
MOT‐GeneralVentilationAir‐CleaningDevicesforRemovalEff.byParticleSizeSaturday,28June2014,8:00am–12:00pm
Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
Votes:FontisBold,Black
TaskGroups:FontisBold,BlueActionItems:FontisBold,Red
©2012ASHRAE.Allrightsreserved.ThisisadraftdocumentforreviewonlybythecognizantASHRAEgroupsandotherdesignatedreviewersandisnotintendedfordistributiontoanyprivateinterests,individuals,orthirdpartiesthatarenotdesignatedasASHRAEreviewersforthisdocument.Thisdocumentmaynotbedistributedinwholeorinpartineitherpaperorindigitalformwithouttheexpresspermissionofthechairofthecommitteeoriginatingthisdocument.Theappearanceofanytechnicaldataoreditorialmaterialinthisdraftdocumentdoesnotconstituteendorsement,warranty,orguarantybyASHRAEofanyproduct,service,process,procedure,design,orthelike,andASHRAEexpresslydisclaimssame.
1) CalltoOrder8:00am(5min.)a) Introductionsb) Rollcall&quorumconfirmation
BobBurkhead‐present MichaelCorbat–notpresent KathleenOwen–notpresent KeithChesson–present KJChoi‐present ZiedDriss–present ChrisFisher‐present LenDuello‐present TomJustice‐present GemmaKerr‐present DaveMatier‐present PhilMaybee‐present BruceMcDonald‐present StephenNicholas–notpresent JohnRobertson–notpresent ChristineSun–present PaoloTronville–notpresent NAFA(AlVeeck)‐present 13here,5not–wedohavequorum
2) Reviewofthedraftagenda–agreedtoamendaspertheattachedfinalagenda(redtype)3) ReviewandapprovaloftheNewYork2014minutes–Votetoapprove13‐0‐0‐184) Chair’sRemarks‐
a) Emphasizedtheprimeobjectiveofrepublicationin2017
DraftMeetingMinutesASHRAESSPC52.2
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Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
b) SPLSrosterrecommendationsaredueby22August2014–sopleasehaveyour
paperworksubmittedsoonandmakesuretheincomingchair,MikeCorbattknowsyourwishes.RollingoffthismonthareBobBurkheadandLenDuello
5) LiaisonReports(15min.)a) StandardsCommitteeLiason–RitaHarold–noreportb) SSPC62.2Liason–IanWalker–noreport
6) OLDBUSINESS:a) ActiveAddendaReview:
PublicationreviewAddendumBandDarecomplete(SheddingandHumiditychanges).Addendamaynowbepublished.WatchtheASHRAEbookstore.
AddendumC‐OPCspecification,wentoutforpublicreview.Fourcomments.ReviewVijay’scommentandMikeCorbett’sresponse.BurkheadsuggestssendoutCorbett’sresponsetocommitteebyletterballotforconsiderationandfeedback.
AddendumA–MERVtablechange.BurkheadwroteresponsetoM.Renncomment.WaitingforRenntorespondtoBurkheadresponse.
b) APPENDIXJDISCUSSION Reviewofpriormeeting(NYC)discussion–McDonaldhadmademotion
toincludeAppendixJintothemainbodyofthestandard. T.Justice–Madeapresentationoutliningresultsofa2005research
projectASHRAE1189RP(copyattached).Discussionincludedthatdifferentconditionsaffectdischarge,recirculationairmuchweakereffectofdischargevs.100%outsideair,longrangeplanningonwherewegowiththisStandard,Costimpact,Volumeoftesting.PresentMERVandMERV‐A,ISOdocumentaswrittenusesIPAvaportodischargemedia.ISOusestheundischargedanddischargeaverageinreporting,supposedlyclosetoAppendixJ(notalways).
M.Britt–Madeapresentation(copyattached).Somein‐servicefiltersdecreaseinefficiency.Notallbutsome.Extentofdecreasedependentonmediaandcontaminants.PointedoutthattherehasbeenNOlabtolabreproducibilitydemonstratedtodate.Thatthelabconditioningstepcancauseefficiencydecrease.Timetomeetconditionedcriteriatakes2‐3days,extentofdecreasemaybehigherorlowerthanin‐servicefilters,SomefiltersnotaffectedbyIPA,circulatingAir/IPAvaporcreatesuniformenvironment.Shouldbeverified,timetoreachminimumefficiency~1hour,IPAvaporreducesefficiencytotheminimumvalue,aseffectiveasimmersion,IPAdischargesthefilter,APJconditionsthefilter.PotentialChoices–nothing(continuewithinformativeAPJ),
DraftMeetingMinutesASHRAESSPC52.2
MOT‐GeneralVentilationAir‐CleaningDevicesforRemovalEff.byParticleSizeSaturday,28June2014,8:00am–12:00pm
Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
changeAPJtomandatory,AddIPAasappendix,retainAPJasinformative.ReplaceAPJwithIPA,ReplaceAPJwithmandatoryIPA.MakeitInformativeorMandatory,willnotmakemajorchangesintothestandard.IPAeffectondustloadingisnotestablished.
JohnZhang‐madeapresentation(copyattached)–Residentialin‐situloadingvs.52.2‐evaluated4differenttypesforelectretHVACfilters.Measuredinitialefficiency.RecommendedthatweuseaverageefficiencytodetermineMERVandhaveseparatestandardsforcommercialandresidentialapplication.
FurtherdiscussionwasentertainedandMcDonaldcalledthequestionforvoteonpointoforder.VoteonQuestion(CloseDebateandVoteonMcDonaldMotion)4‐9‐0‐18
MotionfromMcDonaldtotableuntilnextmeetingfordiscussion.SecondbyKerr12‐1‐0‐18
c) ApplicationGuidestatusReport–PhilMaybee
Trytocreateadocumentonhowonecanuse52.2inthefield.JointdocumentbetweenNAFAandASHRAE?
NAFAhasabrochureonunderstandingMERVandincluded. Guideshouldreflectscopeofstandard.Nohistoryonwhywewentto
fractionalefficiency. PerceptioninindustryisASHRAEisdoingthetestingandpoliceor
validatelabtesting. Documenttobesenttovotingandnon‐votingmemberstoreviewand
commenttosendtoASHRAE.d) MERV17–20Issue‐discussiononmakingsuretheseareremovedfromthe
documentassoonaspossible–nextaddendumsubjectforNewYork.e) Table“notes”correctionissues–OwenandBurkheadhadoutlinedfurther
commentchangesrequiredinfutureaddenda–detailswerenotdiscussedatthismeetingbutDOneedtobecommunicated.BurkheadtoreviewbyNewYork.
f) ASHRAE52.3discussion–Whyconsideranew52.3?Discussionhighlightswere: Splitthestandardbetweencommercialandresidential BurkheadandJusticetoinitiatediscussionwithStandardsCommitteeon
ISOinteractionandphilosophy Potentialforcompletelynewmethod,instrumentationandreporting
formats SuggestedputtingoutasolicitationintheASHRAEjournal. Becarefulofscopechangeandfocus PointmadethatISOismovingtowardaPMbasedtestandratingmethod
DraftMeetingMinutesASHRAESSPC52.2
MOT‐GeneralVentilationAir‐CleaningDevicesforRemovalEff.byParticleSizeSaturday,28June2014,8:00am–12:00pm
Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
Burroughspointedoutthatthesedirectionsshouldcomefromthe
cognizantcommitteeforus(TC2.4)g) DiscussiononASHRAE62Filtrationcommittee–Veeckmentionedaposition
paperthathasbeenpublishedandthatlittleforwardmovementhasoccurredintermsoffiltrationaspectsofthestandard.Furtherpointswere:
MovefromMERV6toMERV8minimum TryingtouseCADRfromAHAMinsteadofMERV(duetoneedtoprovide
ratingwherethereisnocentralHVAC). NotedtheMERV13minimuminLEEDSratingandhowtheexpectation
couldmoveintothestandard Needguidanceonwhattodonext.(McDonaldhadmadeapresentation
tothemonusingPMdesignationssimilartoISO)7) TaskGroupUpdates:
a) TGforAirDensityCalculation–Britttoincludeinthestandard.PreviouslyvotedonandnowtargetedforChicago
b) TGforIPAVaporconditioningroundrobin–BrittandCorbattomakeaproposalandsolicitcommitteefeedback.
c) TGfor“seriesTesting–BrittandMcGrath.Timetosendtovotingandnon‐votingmembershiptoreviewandcommentbacktoMonroeBrittandToddMcGrathfordiscussionatChicago.
d) TGfor52.2longtermplanningstrategy–McGrath McGrathexplainedneedformorefocus Nothingwrittenasyet Assignedtoworkonit–Burkhead,Vatine,Vijay,Maybee Referto52.3discussionprior
e) NEWproposedTG–Maybeemovedtocreatea“minimumefficiency“requirementsimilartoEN779.Veeckseconded–passed13‐0‐0‐18
f) NewTGconsideredtodiscuss,getarmsaroundandproposechangestoconditionexpectation
g) NewTGdiscussedfor“cyclingtesting”–tabledforlackofavolunteertochair(butHanleywasconsidered)–possibleRTAR
8) NewBusinessa) NewInterpretationRequestfromBruceMcDonaldregarding52.2usingquasi‐
solidparticles.AretheseparticlesallowableinStandard52.2?M.Corbettresponsetobesentouttovotingmembership.Commentisthestandardisnotspecific.Humidityinchamberisimportant.RHupdatetoaddress?
9) ResearchSubcommitteeAgenda–KeithChesson
DraftMeetingMinutesASHRAESSPC52.2
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Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
a) RTARonVariabilitystudy‐RTARfromtheVariabilityTGforroundrobintesting
toevaluatetheeffectofthe(4)52.2addendaonlabvariability.IhavenotgottenanupdatefromGemmatodateandI’mreachingbackouttoher,asthereistherequesttoget2.4co‐sponsorship.GemmatoproduceRTARintwoweeks.b) RTARonIPAVapor–BobBurkhead‐Bobwaslisted.WaittableuntilISOresponse.
c) RTARonneutralizationofAerosol–BruceMcDonaldtostartstatementwithbaselinedatafromRoundRobin.
d) RTARforquantifyingparticlesheddingfromloadedairfiltersandcyclingintostaticanddynamic.Bobischampion.Anyparticle(fibersheddingorsyntheticdust).Chessontoassist,Matier,ChristineSun.Talkabout2.4assistanceorfoldinto2.4Research.e) NewResearchsubjects
newradonstatsfromCanada,betterdealtwithinTC2.3.10) Adjourned‐T.Justice,SecondG.Kerr;13/0/0/0/CV(For‐Against‐Abstain‐Absent‐ChairVoting)
Appendices:
a) Attendeesb) FinalAgendac) TomJusticepresentationd) MonroeBrittpresentatione) JohnZhangpresentation
DraftMeetingMinutesASHRAESSPC52.2
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Appendix:Attendees(56)
DraftMeetingMinutesASHRAESSPC52.2
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MeetingAgendaASHRAESSPC52.2
MOT‐GeneralVentilationAir‐CleaningDevicesforRemovalEfficiencybyParticleSizeSaturday,28June2014,8:00am–12:00pm
Room607WashingtonStateConventionCenter6thFloor800ConventionPlace,Seattle,Washington10019
1) CalltoOrder8:00am(5min.)a) Introductionsb) Rollcall&quorumconfirmation
2) Reviewofthisagenda–amendandappendassuggested(5min.)3) ReviewandapprovaloftheNewYork2014minutes(5min.)4) Chair’sRemarks(15min.)
a) Reviewofobjectives Republicationin2017 Plannedaddendafocusthrough2017 Longrangeplanning(researchinitiatives–5yearplan)
b) SPLSRosterrecommendationsfor2014–currentvotingstatus5) LiaisonReports(15min.)
a) StandardsCommitteeLiason–RitaHaroldb) SSPC62.2Liason–IanWalkerc) 52.2ResearchSubcommittee–KeithChesson(reportatendofmeeting)
6) OldBusinessItems/CommitteeReports(1hour)a) PublicationPublicReviewofactiveaddendumactivities.
AddendumBandD–(SheddingissueandHumidityChange) AddendumC‐OPCspecificationlisting AddendumA–MERVtableChange
b) AppendixJ–MonroeBritt,TomJustice,JohnZhangc) Applicationguidestatus–PhilMaybeed) MERV17through20issuee) Tablecorrectionsissue–KathleenOwen
7) TaskGroupReportsandDiscussions(1hour)a) TGforAirDensitycalculation(MonroeBritt)b) TGforIPAvaporconditioning(MonroeBritt)MikeCorbat–RoundRobinc) TGfor“seriestesting”–MonroeBrittandToddMcGrathd) TGfor52.2longtermplanning/strategy–ToddMcGrath
8) NewBusiness(1hour)a) NewInterpretationRequestfromBruceMcDonaldb) Barney’spoint
9) ResearchSubcommitteAgenda–KeithChessona) RTARonVariabilitystudy(Addendasuccessabove)‐??b) RTARonIPAVapor–BobBurkheadc) RTARonneutralizationofAerosol–BruceMcDonaldd) RTARforquantifyingparticleShedding–BobBurkheade) NewResearchsubjects
10) Adjournat12:00noonsharp
SSPC 52.2 Moving Appendix J to Main Body
KEY QUESTIONS
• Does this conditioning step simulate the efficiency drop
seen in charged filters?
• Do we plan to eventually adopt the international test
standard?
• Does the current motion as stated provide adequate
detail?
Does this conditioning step simulate the efficiency drop seen in charged filters? • ASHRAE 1189 RP showed that 100% of the 15 filters
tested in-situ showed a definite decline in efficiency. • “Therefore, it is of crucial importance to have information
about the efficiency baseline, i.e. the efficiency which corresponds to the discharged state of the materials.”….VTT.
• Degradation of efficiency varies depending on particle size, wet vs. dry, humidity, particle composition, elapsed time, etc.
Outdoor Air versus Exhaust Air • “When the exhausted indoor air was used to challenge the
charged filter materials, much weaker efficiency decrease was observed compared to challenge with outdoor air”…VTT
• “This supports the assumption that charged air filters may perform better in the air re-circulation systems, especially if there are no fine particle sources inside the building”…VTT
Do we plan to eventually adopt the International Test Standard? • It is doubtful that the ISO committee will adopt the
Appendix J method. • If the ASHRAE adopts the international standard this will
be the second Baseline change since Std 52.2-2012. • Old test reports become obsolete just as with the previous
change. • We lose a lot of comparative data. • We need to step back and think about long range
planning.
Does the Current Motion as stated provide Adequate Detail. • The cost of testing will go up but how much? • Can everyone’s need for new test reports be
accommodated in a timely manner and are we going to guarantee that no company will lose business because independent testing could not be obtained for a bid.
• Do we still present MERV or just MERV-A results.
• Is there a Timetable for the roll-out?
END
……Just the Facts
� Some in-‐service filters decrease in efficiency
� Extent of decrease dependant on media and contaminants
� Appendix J lab conditioning step can cause efficiency decrease Lab-‐to-‐Lab reproducibility debatable Time to meet conditioned criteria can take up to 2 to 3 days Extent of decrease may be higher or lower than in-‐service filters � Exposure to IPA vapor can cause efficiency decrease Circulating air/IPA vapor chamber creates uniform environment Lab-‐to-‐Lab reproducibility should be verified in circulating chamber Time to reach minimum efficiency approx. 1 hour IPA vapor reduces efficiency to the minimum value IPA vapor is as effective as IPA liquid immersion , or more so
Condi1oning or Discharge ?? � Potential Choices 1. Do Nothing, continue with Informative Appendix J 2. Change Appendix J to Mandatory 3. Add IPA Vapor as Appendix, retaining Appendix J as Informative 4. Replace Appendix J with Informative IPA Vapor method 5. Replace Appendix J with Mandatory IPA vapor method • If Appendix J is retained as Informative or made Mandatory, major
changes in 52.2 test procedures will not be necessary. Dust loading portions conducted on same filter as conditioned.
• If IPA vapor method is added as Informative or Mandatory, major
changes to 52.2 may want to be considered. Dust loading portions may, or may not, want to be conducted on discharged filter.
Possible Major Changes to 52.2 � IPA Vapor discharged filters can have lower efficiencies than filters
conditioned per Appendix J. Changes may be desired because of extent of IPA vapor discharge.
� Effect of IPA vapor on dust loading not established. (More study on effect of Appendix J also needed?)
� Test of two identical filters may be considered. First filter will be for initial test and subsequent five dust loading/efficiency tests, Second filter will also be for initial efficiency test and re test after IPA vapor exposure. Dust loading will not be performed on this second filter.
� MERV curve may be established by minimum of numerical average of First
filter values, including dust loading, and Second filter discharged values. If First filter values drops below Second filter values, First filter values will be used directly.
In-home vs. Lab-based Performance Testing of Residential HVAC Filters
3M Company June 28, 2014
Residential In-situ loading vs. ASHRAE 52.2 MCE & Appendix J • Evaluated 3 different types of electret HVAC
filters. • Measured initial efficiency of test filters • Installed each type of filters in 3 or 4 different
homes. • Removed at 90 days (EOL) to measure fractional
efficiency in the lab • Performed ASHRAE 52.2 testing on companion
filter for each performance level
Initial Efficiencies of Filter A
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ASHRAE 52.2 Appendix J Conditioning Results Overlay for Filter A
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Initial Efficiencies of Filter B
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ASHRAE 52.2 Appendix J Conditioning Results Overlay for Filter B
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Initial Efficiencies of Filter C
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ASHRAE 52.2 Appendix J Conditioning Results Overlay for Filter C
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Summary • Appendix J conditioning under-predicts the filter performance,
not suitable for residential HVAC air filters. � Aerosol source and duty cycle differences may be attributed to under-
prediction.
Ini$al 52.2 MCE Home Use Appendix J Condi$oning
Filter A MERV 11 MERV 11 MERV 7/8 MERV 7
Filter B MERV 11 MERV 11 MERV 10/11 MERV 6/7
Filter C MERV 13 MERV 13 MERV 12 MERV 8
Recommendations
• Conduct research to identify/develop a test aerosol that is representative for residential home environment.
• Use the average efficiency , average of initial, intermediate and final efficiencies, for reporting residential filter MERV value.
• Separate the air filter standards for commercial and residential applications.
