1 | Building Technologies Programeere.energy.govThe Parker Ranch installation in HawaiiBUILDINGTECHNOLOGIESPROGRAMNoticeofProposedRulemaking(NOPR)PublicMeetingonTestProceduresforResidentialFurnaceFansMohammedKhanDepartmentofEnergyEnergyEfficiency&RenewableEnergyMohammed.Khan@ee.doe.govJune15,20122 | Building Technologies Programeere.energy.gov•Introductions•RoleoftheFacilitator•GroundRules(norms)–Listenasanally.–Useshort,succinctstatements/keeptothepoint.–Holdsidebarconversationsoutsidetheroom.–Focusonissues,notpersonalities.–Onepersonspeaksatatime(raisehandtoberecognized;stateyournamefortherecord).–Setcellphonestosilent/vibrate.•HousekeepingItemsWelcomeandIntroductions3 | Building Technologies Programeere.energy.gov•TheDepartmentisbroadcastingthismeetingliveovertheInternet.•DOEisprovidingthewebcasttoaccommodateinterestedpartiesthatareunabletoattendthepublicmeetinginperson.•Thewebbroadcastallowsinterestedpartiestolisteninandviewthepresentationslides.•Allinterestedpartiesareencouragedtosubmitwrittencommentsafterthepublicmeeting.•Allmicrophonesintheroomshouldbemutedunlessspeakingtocontrolfeedbackonthephoneline.ListeningViatheWebcast4 | Building Technologies Programeere.energy.govPurposeofthePublicMeeting•Purpose–TopresentDOE’sproposedtestprocedureforresidentialfurnacefans;–Toseekcommentfromparticipantsontheproposedtestprocedure;–Todiscussspecificissuesorquestionsrelatedtotheproposal;and–Todescribenextstepsinthetestprocedurerulemaking.•CommentsfromParticipants–Participantsareinvitedtoprovidesummarycommentsorstatementsandraiseadditionalissuesfordiscussion.–TheNOPRwaspublishedintheFederalRegisteronMay15,2012(77FR28674),andtheNOPRcommentperiodclosesJuly30,2012.5 | Building Technologies Programeere.energy.govRequestForCommentIssueboxnumberingcorrespondstothelistofissuespublishedattheendoftheNOPR,availableat:http://www1.eere.energy.gov/buildings/appliance_standards/residential/furnace_fans.htmlIssueBox:TheU.S.DepartmentofEnergy(DOE)welcomescomments,data,andinformationconcerningitsNOPRforresidentialfurnacefans.IssuesthatcorrespondtothoseraisedintheDOE’spublishedmaterialwillbenumberedinaccordancewiththatmaterial.Whetherinvitedbyanissueboxornot,commentsarewelcomeonanypartofDOE’sanalysis.(Issue#)6 | Building Technologies Programeere.energy.gov• In all correspondence, please include all of the following:– Test Procedure for Residential Furnace Fans– Docket Number:EERE-2010-BT-TP-0010– Regulatory Identification Number (RIN):1904-AC21• Contact InformationComment period closes:July 30, 2012Postal Mail:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies ProgramMailstop EE-2J1000 Independence Avenue, S.W.Washington, DC 20585-0121Courier:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, S.W., 6thFloorWashington, DC 20024Telephone: (202) 586-2945DOE Seeks Comments on itsProposalEmail:FurnFans-2010-TP-0010@ee.doe.gov7 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks78 | Building Technologies Programeere.energy.gov•EPCAdirectsDOEtoestablishtestproceduresinconjunctionwithneworamendedenergyconservationstandards,includingfurnacefans.(42U.S.C.6295(o)(3)(A))–Under42U.S.C.6295(f)(4)(D),EPCAdirectsDOEtoconsiderandprescribestandardsforelectricityusedforpurposesofcirculatingairthroughductwork (hereinafterreferredtoas“furnacefans”)nolaterthanDecember31,2013.•42U.S.C.6293(b)(3)statesthattestproceduresshallbereasonablydesignedtoproducetestresultswhichreflecttheenergyefficiencyorenergyuseofaproductduringarepresentativeaverageusecycleandshallnotbeundulyburdensometoconduct.•EPCArequiresthatDOEintegrateintotheenergyconservationstandardtheenergyuseassociatedwithstandbymodeandoffmode,unlessthecurrentstandardalreadyaccountsforstandbymodeandoffmodeenergyconsumptionorintegrationisnottechnicallyfeasible.Inthelattercase,EPCArequiresthatDOEprescribeaseparateefficiencystandardtoaddressstandbymodeandoffmodeenergyuse,unlessthatisnotfeasible.(42U.S.C.6295(gg)(3))Accordingly,DOE’sfurnacefantestproceduremustaccountforstandbymodeandoffmodeenergyuse.(42U.S.C.6295(gg)(2))IntroductionandOverviewStatutoryAuthority9 | Building Technologies Programeere.energy.gov•DOEcurrentlyhasnoenergyconservationstandardortestprocedureforresidentialfurnacefans.•OnJune3,2010,DOEpublishedaNoticeofPublicMeetingandAvailabilityoftheFrameworkDocumenttoinitiatetheenergyconservationstandardrulemakingforfurnacefans.75FR31323.IntroductionandOverviewRegulatoryHistory10 | Building Technologies Programeere.energy.govNOPRFinalRuleIntroductionandOverviewTestProcedureRulemakingProcess•DOEpublishedthefurnacefanstestprocedureNOPRonMay15,2012.•DOEisholdingtheNOPRpublicmeetingtoday,June15,2012.•DOEwillacceptcommentsonNOPRfrominterestedparties.–Oralcommentsfromtoday’smeetingwillberecordedandtranscribed.–InterestedpartiescansubmitwrittencommentsuntilJuly30,2012.•DOEreviewsandconsidersallcomments.•DOEexpectstoissueatestprocedureFinalRulebyDecember31,2012.11 | Building Technologies Programeere.energy.gov•CommentsfromParticipants–Participantsareinvitedtoprovidesummarycommentsorstatements.–Participantsareinvitedtoraiseadditionalissuesfordiscussiontoday.–ParticipantsareinvitedtosubmitcommentsduringtheNOPRcommentperiod,whichisopenthroughJuly30,2012.•OpeningRemarks–Atthistime,DOEwelcomesopeningremarksfrominterestedpartiesonthetestprocedureNOPRforresidentialfurnacefans.IntroductionandOverviewMethodsofProvidingFeedback12 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks713 | Building Technologies Programeere.energy.gov•Scopeofapplicabilityincludessingle‐phase,electrically‐powereddevices thatcirculateairthroughductworkinheating,ventilation,andair‐conditioning(HVAC)productswith:–Heatingcapacitieslessthan225,000Btuperhour;and–Coolingcapacitieslessthan65,000Btuperhour.•ThesecriteriaareconsistentwithcurrentDOEdefinitionsforresidential“furnace”and“centralairconditioner(CAC).”(10CFR430.2)•DOEfindsthatHVACproductsthatmeetthesecriteriatypicallyhaveairflowcapacitieslessthan3,000cfm.•DOEproposestoexcludeanynon‐ductedproducts,suchas:–Whole‐houseventilationsystemswithoutductwork;–CACcondensingunitfans;–Roomfans;and–Furnacedraftinducerfans.ScopeofApplicability14 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks715 | Building Technologies Programeere.energy.govDOEselectedreferencestandardsthatarewidelyusedbyindustryparticipantsforthepurposeofmeasuringfanperformanceandstandbymodeandoffmodeelectricalenergyconsumption.•ActiveMode–ANSI/AMCA210‐07|ANSI/ASHRAE51‐07:LaboratoryMethodsofTestingFansforCertifiedAerodynamicPerformanceRating.•StandbyModeandOffMode(hydronicairhandlersonly)–DOEstandbymodeandoffmodetestprocedureforresidentialfurnaces.(10CFRpart430,subpartB,appendixN,section8.6)–InternationalElectrotechnicalCommission(IEC)Standard62301(SecondEdition),Householdelectricalappliances– Measurementofstandbypower.ReferenceStandards16 | Building Technologies Programeere.energy.govDOEincorporatedbyreferencethesectionsrequiredtocalculatetheproposedmetric,the“fanefficiencyrating”(FER).•Sectionsincorporatedbyreference:–Definitions,unitsofmeasure,andsymbols(section3);–Instrumentsandmethodsofmeasurement(sections4.1to4.3and4.6);–Testsetupandequipmentprovisions(section5)andobservationandconductoftestguidelines(section6);–Calculations(sections7.1to7.7andsection7.9);and–Reportandresultsoftestrequirements(section8).•Sectionsnotincorporatedbyreference:–Mechanicalmeasurementoffaninputpowerandmotorcalibration(section4.4)androtationalspeed(section4.5);–Testdatatoberecordedforrotationalspeed(N),beamload(F),ortorque(T);and–Calculationsforfanpowerinputorfanefficiency(sections7.7and7.8).ReferenceStandardsANSI/AMCA210‐0717 | Building Technologies Programeere.energy.govDOEproposesthefollowingspecificationsinadditiontothemethodsincorporatedbyreferencefromANSI/AMCA210‐07:•Therangeandincrementsofexternalstaticpressures(ESP)atwhich“determinations”(i.e.,measurementofairflow,electricalconsumption,andESP)aretobemade;•Useofanelectricalmetertomeasureelectricalenergyconsumptionwithacertifiedaccuracyof±1percentofobservedreadingsateachdeterminationtoreplacethemechanicalmethodsspecifiedinsection4.4ofANSI/AMCA210‐07;and•Electricalsupplybemaintainedwithin1percentofthehighestnameplatevoltage.ReferenceStandardsANSI/AMCA210‐0718 | Building Technologies Programeere.energy.govRequestForCommentANSI/AMCA210‐07DOErequestscommentsontheproposeddefinitionof“externalstaticpressure”andwhetherDOEiscorrectinassumingthatexternalstaticpressureratingsreportedinproductliteratureareequivalenttoANSI/AMCA210‐07fanstaticpressuremeasurements.(Issue8)DOEexpectsthattheterm“externalstaticpressure”usedbymanufacturersissynonymouswiththeterm“fanstaticpressure”asdefinedbyANSI/AMCA210‐07.•Fanstaticpressure:Thedifferencebetweenthefantotalpressureandthefanvelocitypressure.Therefore,itisthedifferencebetweenstaticpressureatthefanoutletandtotalpressureatthefaninlet.(ANSI/AMCA210definition)•Externalstaticpressure:ThedifferencebetweenthefantotalpressureattheairoutletandthetotalpressureattheairinletlessvelocitypressureattheairoutletofanHVACproductcontainingafurnacefanwhenoperatingandinstalledinaccordancewiththemanufacturer’sinstructions.ExternalstaticpressuredoesnotincludethepressuredropacrossappurtenancesinternaltotheHVACproduct.(NOPRdefinition)19 | Building Technologies Programeere.energy.govTheoreticalcalculationofexternalstaticpressure:••FanstaticpressureasdefinedinAMCA210andadoptedforESPinNOPR:••ExternalStaticPressureSource: ANSI/AMCA 210-0720 | Building Technologies Programeere.energy.govRequestForCommentANSI/AMCA210‐07DOErequestscommentsonwhichoftheANSI/AMCA210‐07setupsarebest‐suitedforthepurposesofthistestprocedure.DOEalsorequestscommentsonwhetheranyofthesetestsetupsareinappropriateandshouldbedisallowedforthepurposesofthistestprocedure.(Issue7)•DOErecognizesthatANSI/AMCA210‐07includes16setupvariations.•DOEdidnotproposeaparticularvariation.•DOEexpectsthattheblow‐throughsetups,suchastestsetup12,maybemoreappropriatethanpull‐throughsetups,suchassetup13,becausetheyaremorerepresentativeoftypicalinstallationsoftheHVACproductsthatincorporatefurnacefans.21 | Building Technologies Programeere.energy.govRequestForCommentANSI/AMCA210‐07DOErequestscommentonwhetheranylimitationsonthebarometricpressurerangeoradjustmentstoaddresstheimpactofbarometricpressureshouldbeincludedinthetestprocedure.(Issue9)•DOEisawarethatbarometricpressurechangesmayhaveanimpactontestmeasurementresults.•DOEnotesthattheANSI/AMCA210‐07standarddoesnotappeartoincludecorrectionforthiseffect.22 | Building Technologies Programeere.energy.govHVACProducts Status LatestDOERulemakingActivityGasFurnacesOil‐firedFurnacesElectricFurnacesBeingaddressedinseparaterulemakingSeptember13,2011Furnaces NOPR(76FR56339).ModularBlowersWeatherizedGasFurnaceBeing addressed inseparaterulemakingOctober24,2011CACSNOPR(76FR65616).HydronicAirHandlersBeingaddressed incurrentrulemakingN/AReferenceStandardsDOEFurnaceStandbyTestProcedure(IEC62301)DOEisaddressingstandbymodeandoffmodeenergyuseintestproceduresforresidentialfurnacesandCAC,butnothydronicairhandlers.23 | Building Technologies Programeere.energy.govRequestForCommentStandbyModeandOffModeDOEseekscommentonwhethertheassumedsimilaritiesbetweentheelectricalsystemsoffurnacesandhydronicairhandlersareappropriate.DOEseekscommentonwhetherthemethodsformeasuringstandbymodeandoffmodeenergyconsumptionspecifiedintheDOEtestprocedureforresidentialfurnacesandboilersareappropriateforhydronicairhandlers.(Issue5)•DOEfindsthattheelectricalsystems(i.e.,componentsandcontrols)ofhydronicairhandlersaresimilartotheelectricalsystemsoffurnaces.•DOEproposestoincorporatethemethodsspecifiedintheDOEtestprocedureforresidentialfurnacesandboilerstomeasurethestandbymodeandoffmodeenergyconsumptionforfurnacefansusedinhydronicairhandlers.(10CFRpart430,subpartB,appendixN,section8.0)24 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks725 | Building Technologies Programeere.energy.gov•FERistheestimatedannualelectricalenergyconsumptionnormalizedby:1. annualratedoperatinghours,and2. theairflowinthemaximumairflow‐controlsettinginstandardcubicfeetperminute.•Theannualratedoperatinghoursvariesbyproducttypedependingonwhetherstandbymodeandoffmodeoperatinghoursareconsidered.•Theestimatedannualelectricalenergyconsumptionisaweightedaverageofthefaninputpowermeasuredseparatelyformultipleairflow‐controlsettingsatdifferentexternalstaticpressures(ESPs).–Theairflow‐controlsettingsproposedtoberatedcorrespondtooperationincoolingmode,heatingmode,andconstant‐circulationmode.–PowerandairflowmeasurementsaretakenatESPsthataredeterminedbyareferencesystemthatrepresentsnationalaverageductworkcharacteristics.–Theinputpowerisweightedbyestimatednationalaverageoperatinghoursforeachratedairflow‐controlsetting.FanEfficiencyRating(FER)26 | Building Technologies Programeere.energy.govFanEfficiencyRatingRatedAirflow‐ControlSettings•DOEisawarethatfurnacefanstypicallyhavemultipleairflow‐controlsettings.•DOEexpectsthateachairflow‐controlsettingistypicallydesignatedtoperformaspecificfunction(i.e.,constantcirculation,heating,orcooling).•DOEexpectsthatairflow‐controlsettingdesignationsareasfollows:–Lowestsettingsaredesignatedforconstantcirculation.–Mediansettingsaredesignatedforheating.–Highestsettingsdesignatedforcooling.27 | Building Technologies Programeere.energy.govProductType ProposedLowestRatedSettingProposedMedianRatedSettingProposedHighestRatedSettingSingle‐StageHeating Defaultconstant‐circulationDefaultheat Maximum(Cooling)Multi‐StageorModulatingHeatDefaultconstant‐circulationDefault lowestheat Maximum(Cooling)Heating‐only Defaultconstant‐circulationNone Maximum(Heating)FanEfficiencyRatingRatedAirflow‐ControlSettings•DOEfoundthatratingthreeoftheavailableairflow‐controlsettingscapturesefficiencyimprovementswhileminimizingburdenonmanufacturers.•Defaultairflow‐controlsettings aretheairflow‐controlsettingsthatcanbeachievedinthefactory‐setcontrolsystemconfiguration(i.e.,withoutmanualadjustmentotherthaninteractionwithauser‐operablecontrolsuchasathermostat).28 | Building Technologies Programeere.energy.govFanEfficiencyRatingRatedAirflow‐ControlSettings•Datafromanon‐weatherized,non‐condensinggasfurnacefanwitha4‐speedPSCmotor.160014001200-1000E.......-8001:ct6004002000AirflowandPowerConsumptionvs.ExternalStaticPressurebyAirflowcontrolSetting+------------'L---_....-../"'\:-------.-----t-------__'.L--.-_)+E-----__---.- •-----...----------....,140012001000-<II800=:3-600400AMaximumAirlfow(Cooling)XMedium-HighAirflow•DefaultHeatAirflow•DefaultConstantCirculationAirflow(Minimum)+MaximumPower•Medium-HighPower200XDefaultHeatPower;¥DefaultConstantCirculationPower+---------,---------,---------,---------+00.00.20.40.6 0.8ExternalStaticPressure(in.w.e.)29 | Building Technologies Programeere.energy.govRequestForCommentRatedAirflow‐ControlSettingsDOEseekscommentontheappropriatenessoftheproposedassumptionsregardingwhichairflow‐controlsettingsaredesignatedforwhichfunctionsandwhethertheseassumeddesignationsareappropriateforderivingFER.DOEalsoseekscommentonairflow‐controlsettingdesignationsformulti‐stageproducts.(Issue1)30 | Building Technologies Programeere.energy.gov•Areferencesystemisusedtorepresentnationalaverageductworkcharacteristics,whichallowsforcomparisonoffanperformanceatcommonoperatingconditionsacrossproducts.•AreferencesystemcurveisintheformofanequationthatmodelstherelationshipbetweenESPandairflow,Q,asdeterminedbythephysicalcharacteristics,K,ofthesystem.•Forthistestprocedure,DOEproposestodefineareferencesystembyaspecifiedESPvalueandtheairflowdeliveredbythefanatthatESPvalueinthemaximumairflow‐controlsetting.FanEfficiencyRatingReferenceSystem31 | Building Technologies Programeere.energy.gov1. DOEcompiledover1,300fieldmeasurementsofESPinthemaximumairflow‐controlsetting.2. DOEidentifiedfourinstallationtypes:–Heating‐onlyunits;–Unitswithaninternalevaporatorcoil;–Unitsdesignedtobepairedwithanevaporatorcoil;and–Manufacturedhomeunits.FanEfficiencyRatingReferenceSystemMethodology32 | Building Technologies Programeere.energy.gov3. DOEadjustedESPvaluestoderiveonevaluethatincludedreportedevaporatorcoilpressuredropandonethatdidnot.Allvaluesincludedreportedfilterpressuredrop.–Theaveragepressuredropreportedforanevaporatorcoilwas0.20in.w.c.–Theaveragepressuredropreportedforanairfilterwas0.21in.w.c.4. DOEweightedresultsbythefractionoffurnaceinstallationspairedwithanevaporatorcoilinthefield.BasedonEIA’sRECS2005data:–72.9%ofnon‐weatherizedgasandoilfurnacesinsingle‐familyhouseholdsarepairedwithevaporatorcoils;and–50.2%ofnon‐weatherizedgasandoilfurnacesinmanufacturedhomehouseholdsarepairedwithevaporatorcoils.FanEfficiencyRatingReferenceSystemMethodologyHouseholdTypeWithCoilESP(in.w.c.)WithoutCoilESP(in.w.c.)Single‐familyHome0.73 0.52ManufacturedHome0.37 0.1733 | Building Technologies Programeere.energy.govInstallationTypeWeightedAverageESPinMaximumAirflow‐ControlSetting*(in.w.c.)Heating‐onlyunits 0.50Unitswithaninternalevaporatorcoil 0.50Unitsdesignedtobepairedwithanevaporatorcoil0.65Manufacturedhomeunits 0.30FanEfficiencyRatingReferenceSystem*rounded tonearest0.05in.w.c.34 | Building Technologies Programeere.energy.govFanEfficiencyRatingReferenceSystem0.65in.w.c.1050cfm•Datafromanon‐weatherized,non‐condensinggasfurnacefanwitha4‐speedPSCmotor.35 | Building Technologies Programeere.energy.govRequestForCommentReferenceSystemESPValuesDOEseekscommentanddataregardingtheproposedreferencesystemESPvaluesandtheassumptionsDOEusedtoestimatethem.DOEalsoseekscommentonwhetherthespecifiedreferencesystemESPshouldvarywiththeHVACproductcapacity.(Issue3)36 | Building Technologies Programeere.energy.govRequestForCommentReferenceSystemESPValues•DOEisawarethatfieldESPscanbehigherthanrecommendedbymanufacturers.•DOEisalsoawarethattheCanadianStandardAssociation(CSA)specifiedratingfanperformanceusingmultiplereferencesystemsinCSAC823‐11Performanceofairhandlersinresidentialspaceconditioningsystems:–Onereferencesystemat0.3in.w.c.intheheatingsettingtorepresentamanufacturer‐recommendedinstallation,and–Onereferencesystemat0.6in.w.c.intheheatingsettingtoberepresentativeofa“common”fieldinstallation.(CSAC823‐11,Section9.1)DOErequestscommentonmultiple‐referencesystemratingapproachesandwhethertheywouldgiveabetterindicationoftheoverallperformance,ascomparedtotheproposedsinglereferencesystemapproach.(Issue4)37 | Building Technologies Programeere.energy.gov•Foreachratedairflow‐controlsettingDOEproposestospecifydeterminationsat:–0.1in.w.c.;–AnESPequaltotheapplicablereferencesystemESPdividedby2;and–AnESPbetweentheapplicablereferencesystemESPand0.1in.w.c.abovethatreferencesystemESP.•Threedeterminationsineachofthreeratedairflow‐controlsettingsresultsinatotalofninedeterminationsrequiredtogeneratetheFERforagivenresidentialfurnacefan.FurnaceFanEfficiencyRatingDeterminations38 | Building Technologies Programeere.energy.govFanEfficiencyRatingMeasuredData•Datafromanon‐weatherized,non‐condensinggasfurnacefanwitha4‐speedPSCmotor.160014001200_1000E......-800't::a:600400200MeasuredDataRequired forFER14001200...MaximumAirlfow(Cooling)+-...._-------------/"'\:----...."'"--L"\-t----;+'________,T'---____--------1000-III800-..QI600Q.400200•DefaultHeatAirflow•DefaultConstantCirculationAirflow(Minimum)•ReferenceSystemandOperatingPoints+MaximumPowerXDefaultHeatPowerIDefaultConstantCirculationPoweroPowerConsumptionatOperatingPointso+----,-----,----,----,----,----,----,,----+o0.00.10.20.30.40.50.60.70.8ExternalStaticPressure (in.w.c.)39 | Building Technologies Programeere.energy.gov•DOEusedthefollowingequationtoestimatenationalaverageheatingandcoolingfanoperatinghours:•DOEusedresultsfromconstantcirculationusestudiesconductedinWisconsinandMinnesotatoestimatenationalaverageconstantcirculationfanoperatinghours.DOEadjustedthesurveyresultsbecausehomesin WisconsinandMinnesotauseconstantcirculationmorethanthetypicalU.S.homeforthefollowingreasons:–WIandMNhomeshavelowairinfiltrationduetobuildingcodes.–WIandMNresidentshaveahighawarenessofindoorairqualityissues.–WIandMNhomesarelocatedinanorthernclimateregion.FanEfficiencyRatingOperatingHoursMethodology40 | Building Technologies Programeere.energy.gov•DOEproposesavalueofzeroforhydronicairhandleroffmodeoperatinghoursbecauseDOEexpectsthathydronicairhandlersarenottypicallyequippedwithaseasonaloffswitchorthatconsumerswillnotturnoffpowertothehydronicairhandler.•DOEestimatesthattheaverageannualstandbymodefanoperatinghoursisequaltotheremainderofannualhoursnotdesignatedforcooling,heating,constantcirculation,oroffmode.FanEfficiencyRatingOperatingHoursMethodology41 | Building Technologies Programeere.energy.govOperating Mode VariableSingle-Stage Heating(hours)Multi-Stage Heating(hours)Heating ModeHH 830 830/HCRCirculation ModeCCH 400 400Cooling ModeCH 640 640Off Mode(if applicable)OH 0 0Standby Mode(if applicable)SBH 8760-HH-CCH-CH-OH 8760-HH-CCH-CH-OHFanEfficiencyRatingOperatingHoursEstimates• The heat capacity ratio (HCR) is the ratio of output heat capacity in the low heatsetting to the output heat capacity ratio in the high heat setting.42 | Building Technologies Programeere.energy.gov•DOEproposestoaccountforthedifferencesinoperationbetweensingle‐stageheatingandmulti‐stageormodulatingheatingunitsinitsestimatedannualheatingfanoperatinghours.•DOEfindsthatthelowheatsettingtypicallyaccountsfor90percentormoreofheatingoperationtime,requiringmoreheatingoperatinghoursforamulti‐stagefurnacefanthanasingle‐stagefurnacefantoprovidethesametotaldeliveredheatinginagiveninstallation.•DOEproposestousethefollowingequationtodetermineaverageannualheatingoperatinghoursformulti‐stageandmodulatingfurnacefans:FanEfficiencyRatingOperatingHoursMethodology43 | Building Technologies Programeere.energy.govRequestForCommentOperatingHourEstimatesDOErequestscommentonwhethertheproposedoperatinghourvaluesarereasonableestimationsofnationalaverageoperatinghoursforeachfurnacefanfunction.DOEalsorequestscommentonthemethodologyandassumptionsusedtoestimatethesevalues.DOEalsorequestscommentonwhetherhydronicairhandlersaredesignedtoprovidemulti‐stageormodulatedheat.DOErequestscommentsonwhethertheproposedoperatinghourvaluesandproposedratingairflow‐controlsettingsareappropriateforratingmulti‐stageandmodulatinghydronicairhandlers.(Issue2)DOEseekscommentonwhetherhydronicairhandlershaveaseasonaloffswitchorconsumerswouldturnoffpowertothehydronicairhandler.Ifso,DOEalsorequestscommentontheexpectedelectricalenergyconsumptioninoffmode,thenumberofhoursthatshouldbeallocatedtostandbymode,andthenumberofhoursthatshouldbeallocatedtooffmode,aswellasdatatosupporttheseallocations.(Issue5)44 | Building Technologies Programeere.energy.gov•Generalform:•Non‐hydronicFurnaceFans:•HeatingandCoolingHydronicFurnaceFans:•Heating‐onlyHydronicFurnaceFans:FanEfficiencyRatingVariationsNoCooling45 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks746 | Building Technologies Programeere.energy.govFERExample160014001200-1000E....1.1-800t<i600400200FERTestDataforaNon-weatherizedgas, non-condensing furnacefanwitha4-speedPSCMotor+--......---)-E------....----..._C\+-----.......---_--*----_L\------..-...-....--140012001000-III800;:-600400200...Maximum Airlfow(Cooling)•DefaultHeatAirflow•DefaultConstantCirculationAirflow(Minimum)•ReferenceSystemandOperatingPoints+MaximumPowerXDefaultHeatPower;KDefaultConstantCirculationPoweroPowerConsumptionatOperatingPointsaa0.80.00.10.20.30.40.50.60.7ExternalStaticPressure(in.w.e.)47 | Building Technologies Programeere.energy.govFunction Power (W)AnnualOperating HoursAnnual EnergyConsumption(Wh)Cooling450 640 288,000Heating375 830 311,250ConstantCirculation350 400 140,000StandbyNA NA NATotal1,870 739,250FERExampleNon‐weatherized,non‐condensinggasfurnacefanwitha4‐speedPSCmotor.48 | Building Technologies Programeere.energy.govFunction Power (W)AnnualOperating HoursAnnual EnergyConsumption(Wh)Cooling400 640 256,000Heating150 830 124,500ConstantCirculation80 400 32,000Standby11 6,890 75,790Total8,760 488,290IFERExampleHeatingandcoolinghydronicairhandlerfurnacefanwithanECMmotor.49 | Building Technologies Programeere.energy.govFER/IFERComparisonContributiontoConsumptionbyFunction•Non‐weatherized,non‐condensinggasfurnacefanwithaPSCMotor(NWG‐NC,PSC).•Non‐weatherized, non‐condensinggasfurnacefanwithanECM(NWG‐NC,ECM).•Hydronic airhandler(heatingandcooling)fanwithanECM(HAH‐HC,ECM).50 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks751 | Building Technologies Programeere.energy.gov•DOEproposestocreateanewsection,10CFR429.55,forsamplingplanspecificationsformanufacturerstodeterminecertifiedratings.•DOEproposestoadoptthesamestatisticalsamplingproceduresthatareapplicabletoresidentialfurnaces.(10CFR429.18and429.11)•DOEbelievesproductvariabilityandmeasurementrepeatabilityassociatedwiththeelectricalenergyconsumptionmeasurementsproposedforratingresidentialfurnacefansaresimilartothoseassociatedwithelectricalenergyconsumptionmeasurementrequiredforresidentialfurnaces.SamplingPlanforResidentialFurnaceFans52 | Building Technologies Programeere.energy.govRequestForCommentOperatingHourEstimatesDOErequestscommentsonwhetherthesamplingplanproceduresforresidentialfurnacesareappropriateforrepresentationandcertificationofresidentialfurnacefansmeasuresofelectricalenergyconsumption.(Issue10)53 | Building Technologies Programeere.energy.govPublicMeetingAgendaRatingExamplesCertification,Compliance&Enforcement45ReferenceStandards2FanEfficiencyRating(FER)31IntroductionandOverviewScopeofApplicability6ClosingRemarks754 | Building Technologies Programeere.energy.gov•ClosingRemarks–Atthistime,DOEwelcomesanyadditionalremarksorquestionsfrominterestedpartiesonthetestprocedureNOPRforresidentialfurnacefans.•DOEspecificallyinvitescommenton:–Theproposedtestprocedure;–ThenumberedissuesonwhichDOEseekscommentspresentedinissueboxesthroughoutthepresentation.ClosingRemarksandComments55 | Building Technologies Programeere.energy.gov• In all correspondence, include all of the following:– Test Procedure for Residential Furnace Fans– Docket Number:EERE-2010-BT-TP-0010– Regulatory Identification Number (RIN):1904-AC21• Contact InformationComment period closes:July 30, 2012Postal Mail:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies ProgramMailstop EE-2J1000 Independence Avenue, S.W.Washington, DC 20585-0121Courier:Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, S.W., 6thFloorWashington, DC 20024Telephone: (202) 586-2945DOE Seeks Comments on itsProposalEmail:FurnFans-2010-TP-0010@ee.doe.gov56 | Building Technologies Programeere.energy.govBackups57 | Building Technologies Programeere.energy.gov•Residentialfurnacefan meansanelectrically‐powereddeviceusedinresidentialcentralheating,ventilation,andair‐conditioning(HVAC)systemsforthepurposeofcirculatingairthroughductwork.•Hydronicairhandler meansafurnacedesignedtosupplyheatthroughasystemofductswithairastheheatingmedium,inwhichheatisgeneratedbyhotwaterflowingthroughahydronicheatingcoilandtheheatedairiscirculatedbymeansofafanorblower.•Airflow‐controlsettings meansanydistinctoperatingmodecharacterizedbynominalfanspeedorairflowthatafurnacefanisprogrammedorwiredtoachievewheninstalledinaccordancewithmanufacturerinstructionsandwhichisoftendesignatedforperformingaspecificHVACfunction(e.g.,cooling,heating,orconstant‐circulation).•Defaultairflow‐controlsettings aretheairflow‐controlsettingsthatcanbeachievedinthefactory‐setcontrolsystemconfiguration(i.e.,withoutmanualadjustmentotherthaninteractionwithauser‐operablecontrolsuchasathermostat).Definitions58 | Building Technologies Programeere.energy.gov•Externalstaticpressure(ESP) meansthedifferencebetweenthefantotalpressureattheairoutletandthetotalpressureattheairinletlessvelocitypressureattheairoutletofanHVACproductcontainingafurnacefanwhenoperatingandinstalledinaccordancewiththemanufacturer’sinstructions.ExternalstaticpressuredoesnotincludethepressuredropacrossappurtenancesinternaltotheHVACproduct.•Determination iscompletesetofmeasurementsforaparticularpointofoperationforafan,asdefinedbyANSI/AMCA210‐07.Forthisnotice,acompletesetofmeasurementsataparticularpointofoperationincludesairflow,electricalconsumption,andESP.Definitions59 | Building Technologies Programeere.energy.gov•Activemode meansanymodeinwhichtheHVACproductisconnectedtothepowersourceandcirculatingairthroughductwork.•Standbymode meansthemodeduringwhichtheHVACproductisconnectedtothepowersourceandthefurnacefanisnotactivated.•Offmode meansthemodeduringwhichtheHVACproductisnotpowered.•Seasonaloffswitch meanstheswitchontheHVACproductthat,whenactivated,resultsinameasurablechangeinenergyconsumptionbetweenthestandbyandoffmodes.Definitions60 | Building Technologies Programeere.energy.gov1. Proctor,J.,D.Parker,“HiddenPowerDrains:ResidentialHeatingandCoolingFanPowerDemand,”ACEEESummerStudyonEnergyEfficiencyinBuildings,StudyProceedings (August2000)(URL:http://aceee.org/proceedingspaper/ss00/panel01/paper19).2. Proctor,J.P.,PersonalCommunication(2011)(SummaryofunpublishedstudiesperformedbyProctorEngineeringCompany1998‐2007).3. Wilcox,B.,J.Proctor,R.Chitwood,andK.Nittler,“FurnaceFanWattDrawandAirFlowinCoolingandAirDistributionModes”(2006),2008CaliforniaBuildingEnergyEfficiencyStandards(URL:http://www.energy.ca.gov/title24/2008standards/prerulemaking/documents/2006‐0712_workshop/reviewdocs/FAN_WATT_DRAW_AND_AIR_FLOW.pdf).4. Dickenhoff,D.,PersonalCommunication(2011)(SummaryofunpublishedstudiesperformedbyLBNLin1998).5. Baylon D.,S.Strand,B.Davis,D.Robison,andE.Kruse,“AnalysisofHeatPumpInstallationPracticesandPerformance:MarketResearchReport,”NorthwestEnergyEfficiencyAlliance(2005)(URL:http://neea.org/research/reports/169.pdf).6. Ueno,“ECMEfficiencyBetter(andWorse)ThanYouThink.HomeEnergy”(May2010)(TwoStudiesreported2008and2009)(URL:http://www.buildingscience.com/documents/published‐articles/pa‐ecm‐eficiency).FanEfficiencyRatingReferenceSystemMethodology61 | Building Technologies Programeere.energy.gov7. Piggs,S.,“CentralAirConditioninginWisconsin:ACompilationofRecentFieldResearch,”EnergyCenterofWisconsin(2008)(Twostudiesreported2005and2007)(URL:http://www.ecw.org/resource_detail.php?resultid=289).8. Piggs,S.,“CentralElectricityUsebyNewFurnaces:AWisconsinFieldStudy”(2003)(URL:http://www.doa.state.wi.us/docview.asp?docid=1812).9. Baylon,D.,B.Davis,L.Palmiter,“ManufacturedHomeAcquisitionProgram:AnalysisofProgramImpacts,”PreparedforBonnevillePowerAdministrationunderContractNo.DE‐AM79‐91BP13330,TaskOrder#71945(1995).10. Davis,B,A.Roberts,D.Baylon,“SummaryofSGCManufacturedHomeFieldData(1997‐98SittingsinIdahoandWashington),”PreparedforIdahoDepartmentofWaterResources‐EnergyDivision(2000).11. Davis,B.andD.Baylon,"SummaryofSGCManufacturedHomeFieldData(2001‐02Sittings),"PreparedforNorthwestEnergyEfficientManufacturedHomes(ODOE),NorthwestEnergyEfficiencyAlliance,IdahoDepartmentofWaterResources,EnergyDivision(Feb.2004).12. Ecotope,“SummaryofResultsofFieldTestingonNewerNEEMHomesWithMasticDuctSystems,”memorandumtoTomHewes andBradyPeeksofOregonDepartmentofEnergy(June10,2006).13. Baylon,D.andB.Davis,"SummaryofNEEMManufacturedHomeFieldData.“SubmittedtoOregonDepartmentofEnergy(Jan.2009)(URL:http://www.nwcouncil.org/energy/rtf/meetings/2009/04/Draft%202008%20NEEM%20Study_040608.pdf).FanEfficiencyRatingReferenceSystemMethodology62 | Building Technologies Programeere.energy.govSingle‐Stage:Multi‐Stage:FanEfficiencyRatingOperatingHoursMethodology:HeatingVariable Description Value Primary Sourcey Ratio of blower on-time to averageburner on-time1.39 2007 DOE FurnaceDatabaseWFHeatHeating weather adjustment factor 1.04 NOAA heating degreeday (HDD) perCensus DivisionHEAnnualAverage annual heating energy use 49.8 MMBtu/year EIA RECS 2005QinAverage input heat capacity 86.8 kBtu/hour 2001 Shipment Dataand 2010 AHRIDirectoryHCR Heating capacity ratio (lowest outputcapacity to highest output capacity)Model Specific Product Literature63 | Building Technologies Programeere.energy.govFanEfficiencyRatingOperatingHoursMethodology:CoolingVariable Description Value Primary SourceyCRatio of blower on-time to averagecompressor on-time1.12 Product LiteratureWFCoolCooling weather adjustment factor 0.89 NOAA cooling degreeday (CDD) perCensus DivisionCEAnnualAverage annual cooling energy use 2025 kWh/year EIA RECS 2005SEER Seasonal energy efficiency ratio 11.06 AEO 2008QinAverage cooling capacity 34,884 Btu/h 2007-2010 AHRIShipment Data64 | Building Technologies Programeere.energy.govFanEfficiencyRatingOperatingHoursMethodology:Circulation•Assumedhoursforeachresponseestimatedusingtotalannualhours(8,760),furnacefanoperatinghourestimates,andJune2010CACtestprocedureNOPRheating/coolingseasonhourestimates.(June2,2010,75FR31224,31270)•DOEestimatesthatthefractionofconsumersthatuseconstantcirculationis50percentlessintheNorthandSouthHotDryregionand90percentlessintheSouthHotHumidregionthanthepercentagesreportedinthesurveydata.•65percentoffurnacefansarelocatedintheNorthandSouthHotDryregion,while35percentareintheSouthHotHumidregion.HowOftenisContinuousFanUsed?CombinedDatafromStudiesAssumedAverageNumberofHoursNationalWeightedAveragePercentageofConsumers(%)NationalWeightedAverageNumberofHoursNumberofHomesPercentage(%)Nocontinuousfan69 68% 0 89% 0Year‐round14 14% 7290 5% 365Duringheatingseason4 4% 1097 1% 16Duringcoolingseason4 4% 541 1% 8Other(somecontinuousfan)10 10% 365 4% 13Total101 100%‐100%40165 | Building Technologies Programeere.energy.govFanEfficiencyRatingOperatingHoursMethodology:Circulation•AssumedAverageNumberofCirculationHoursperResponse:––“–––•NationalWeightedAveragePercentage(NWAP)ofConsumers:–66 | Building Technologies Programeere.energy.gov•Statisticalsamplingproceduresforresidentialfurnaces(10CFR429.18)–FERorIFERshallbegreaterthanorequaltothehigherof:1. Themeanofthesample,where:and,isthesamplemean;nisthenumberofsamples;andxiistheithsample;or2. theupper97‐1/2percentconfidencelimit(UCL)ofthetruemeandividedby1.05,where:Andisthesamplemean;sisthesamplestandarddeviation;nisthenumberofsamples;andt0.975isthetstatisticfora97.5%one‐tailedconfidenceintervalwithn‐1degreesoffreedomSamplingPlanforResidentialFurnaceFans