1Test Procedures for Furnaces and BoilersIncorporation of Provisions for Addressing Energy Use inStandby Mode and Off ModeNotice of Proposed Rulemaking (NOPR)Public MeetingBuilding Technologies ProgramOffice of Energy Efficiency and Renewable EnergyU.S. Department of EnergyAugust 18, 2009http://www.eere.energy.gov/buildings/appliance_standards/furnaces and boilers2Purposes•To present the Department’s proposed testprocedure amendments;•Seek comment from participants on theproposed test procedure amendments•To discuss specific issues or questions relatedto the proposed amendments; and•To describe the next steps.Purpose of the Public MeetingIntroduction and Overview3Opening Remarks•At this time, DOE welcomes opening remarks from interestedparties on the NOPR for Furnaces and Boilers.Comments from Participants•Participants are invited to provide summary comments orstatements;•Participants are invited to raise additional issues fordiscussion today; and•Participants are invited to submit comments during the NOPRcomment period, which is open through October 13, 2009.Opening Remarks and Comments from InterestedParties on the Proposed Test ProceduresIntroduction and Overview4Steps in Furnace/Boiler Test ProcedureRulemakingNOPR issued by DOE on July 27, 2009NOPR Public Meeting today, August 18, 2009Comments on NOPR from interested parties•Transcript of oral comments from today’s public meeting•Written comments (commentperiodcloses 75 days afterpublication in the Federal Register October 13, 2009)DOE reviews and considers all commentsFinal Rule Publication•Final Rule will be issued as soon as possible after the closeof the comment period.5Regulatory HistoryTest Procedures:DOE’s current test procedure for residential furnaces and boilers is found at 10CFR part 430, subpart B, appendix N, Uniform Test Method for Measuring theEnergy Consumption of Furnaces and Boilers. May 12, 1997. 62 FR 26140.These procedures include energy efficiency, energy use descriptors. (e.g. annualfuel utilization efficiency (AFUE), annual fuel and electric energy consumption andannual operating cost.Energy Conservation Standards:DOE prescribed an amended AFUE-based standard for furnaces and boilers in2007. 72 FR 65136 (Nov. 19, 2007). AFUE is a fossil fuel only efficiencydescriptor.6Regulatory History- continued•Energy Independence and Security Act of 2007 (EISA 2007)Directs DOE to incorporate a measure of standby- and off-modeenergy consumption into its test procedures for residentialfurnaces and boilers•EISA 2007 also directs DOE to integrate such energyconsumption into the energy efficiency, energy consumption,or other energy descriptor.•DOE must consider the most current versions of IEC Standards62301 and 62087.IEC Standard 62301, Household electricalappliances–Measurement of standby power, First Edition 2005-06, and IEC Standard 62087, Methods of measurement for thepower consumption of audio, video and related equipment,First Edition 2002-037Review of F&B test procedure:The first four discussion items of the NOPR, III.A,III.B., III.C. and III.D, establish the following:With some clarification, the EISA 2007 concepts anddefinitions are applicable and workable within the existingF&B test procedureIn the existing test procedure, fossil-fuel energyconsumption is accounted for over a full-year cycle, therebysatisfying EISA 2007 requirements for inclusion of fossil-fuelstandby mode and off mode energy consumption.Electrical energy consumption in standby mode and offmode is not accounted for in the current test procedures.This applies to both fossil fueled and electric furnaces andboilers.8Summary of Proposed AmendmentsNOPR Discussion item III.EAdd measurement provisions utilizing the IECStandard 62301 to obtain power consumption rate instandby mode and off mode.PSBandPOFFAdd new equation for annual standby mode and offmode energy use.Integrate annual standby mode and off mode energyuse into the existing annual energy use equations andother energy descriptors.89Summary of proposal (continued)Annual accounting for standby mode and off modeenergyKey simplifying assumptions: Active mode can beapproximated by burner operating hours (BOH). Non-heatingseason can be estimated as the 4600 hours already assignedin the AFUE calculation.Annual standby mode and off mode electrical energyconsumption,ESO, can be incorporated into the existing testprocedure equations.ESO= ((PSB* (4160 - BOH)) + (POFF* 4600))EAE= BOHSS(yPPE +yIGPEIG+yBE)+ESO10Energy Conservation StandardsNOPR discussion item III.FEISA requires:1. Standby mode and off mode test procedure amendments can not beused to determine compliance with current standards2. After July 1, 2010 any final standard shall incorporate standby modeand off mode energy use into a single amended or new standard3. If such incorporation is not feasible, a separate standard shall beprescribedThe proposed amendments do not change the current standardmetric, AFUEThe proposed amendments will allow a subsequent standard toaddress standby mode and off mode energy consumption, eitherby an incorporated metric or separate standard11Technical Details of the ProposalNOPR discussion items III.G through JBefore moving on to the technical details are there questionson the overall proposal’s concepts just presented?NOPR items III. G through J provide supporting discussionfor the technical aspects of the proposal.The topics covered are:•Active hours approximated as burner operating hours•Active hours for electric furnaces•Details of the added measurement provisions•Use of the IEC procedures12Active mode hours approximated by burneroperating hoursNOPR Discussion item III.G., III.H.Burner operating hours are a calculated result in the existingtest procedure. BOH could be exactly active mode hours forthe burner itself. Most furnaces and boilers have multipleelectric auxiliaries. There can be some runtime difference, forexample for circulating fans, because of time delays andoverruns.Separate accounting of each auxiliaries' standby mode andoff mode is impractical. The potential accounting errorassociated with “BOH = Active Mode” is insignificant.Active mode for electric furnaces and boilers can beestimated by including a calculation similar to BOH in theF&B electric consumption equations.13Details of added measurement provisionsDiscussion item III.INew section is added to the F&B test procedure that requiresmeasurement of standby and off mode wattage utilizing the IEC62301 standard. The new section provides that:- A separate measurement of off mode wattage is only needed if there isa difference with standby mode and off mode, otherwise a singlemeasurement will serve as both standby and off mode wattage-The purpose of the measurement is to include all possible standbyand/or off mode wattage not just the standby and/or off mode of a singlecomponent.-Accuracy requirements of the IEC 62301, not those in the existing testprocedure, are to apply when measuring the low wattages of standby andoff mode power (see explanation on next slide)14Details of added measurement provisionsDiscussion item III.I (continued)Accuracy differences of existing test procedure andIEC standard:-ASHRAE 103- 1993 specifies that all electricity be measured with anerror no greater than 1%. This specification is deemed appropriate forthe range of active mode wattages encountered on furnaces andboilers- IEC 62301 specifies measurement of (standby) power shall be madewith an uncertainty of less than or equal to 2% at the 95% confidencelevel and the resolution of the instrument shall be 0.01 W formeasurements of 10 W and below and 0.1 W for measurements ofabove 10 W. The proposal maintains these provisions and not that ofthe ASHRAE standard are appropriate for the low wattage that mightbe encountered in standby mode and off mode.15Proposed use of IEC Standard 62301NOPR Discussion item III.JOther than the mentioned clarifications the IEC Standard62301 is adopted without modificationDOE believes the IEC 62301 procedure is appropriate formeasuring the low wattage that would be encountered whentesting furnaces and boilers. In reviewing the IEC provisions,DOE sees no conflicts or difficulties for the F&B industrywhen testing their products.DOE seeks comment on the adequacy andappropriateness of IEC Standard 62301 in general, andwhether there is a need to modify or depart from theprovisions in the IEC Standard 62301 with regard toresidential furnaces and boilers.16Closing Remarks•At this time, DOE welcomes any additional remarks orquestions from interested parties on the NOPR for furnacesand boilers.DOE specifically invites comment on:•Clarifying edits;•Use of the IEC 62301 standard•The proposed energy accounting•How to address standby mode and off mode energy use inenergy conservation standard.Closing Remarks and Comments from InterestedParties on the Proposed Test ProceduresClosing17How to Submit Comments...ClosingPublic Meeting– Oral comments will be captured in the transcript and becomepart of the public record.Written comments– NOPR comment period open until October 13, 2009.Reference docket #: EERE-2008-BT-STD-0013 and/or RIN #: 1904–AB83.Email: _rulemaking@ee.doe.govMail: Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program, Mail stop EE-2JNOPR for ASHRAE Standard 90.1 EquipmentEERE-2008-BT-STD-00131000 Independence Avenue, SW.Washington DC, 20585-0121Courier: Ms. Brenda EdwardsU.S. Department of EnergyBuilding Technologies Program950 L’Enfant Plaza, 6th FloorWashington, DC 2002418Back-up SlidesBack-Up Slides8.6 Measurement of electrical standby and off mode power.8.6.1 Standby power. With all electrical components ofthe furnace or boiler not activated, measure the standbypower (PSB) in accordance with the procedures in IEC 62301(incorporated by reference, see §430.22). Utilize the accuracyand precision specifications in IEC Standard 62301 in lieu ofthose in ASHRAE Standard 103 -1993. Measure the wattageso that all possible standby mode wattage for the entireappliance is recorded, not just the standby mode wattage of asingle auxiliary.19Back-up slide8.6.2 Off mode power. If the unit is equipped with a seasonaloff switch or there is an expected difference between offmode power and standby mode power, measure off modepower (POFF) in accordance with the standby powerprocedures in IEC 62301 (incorporated by reference, see§430.22). Utilize the accuracy and precision specifications inIEC Standard 62301 in lieu of those in ASHRAE Standard 103-1993. Measure the wattage so that all possible off modewattage for the entire appliance is recorded, not just the offmode wattage of a single auxiliary. If there is no expecteddifference in off mode power andstandby power, let POFF=PSB, in which case no separate measurement of off modepower is necessary.20Back-up slideFor electric furnaces and boilers,BOH = 100(2080)(0.77)DHR/(Ein 3.412)(AFUE))where:100 = to accommodate AFUE in denominator expressed as a percent2,080 = as specified in 10.2.1 of this appendix0.77 = as specified in 10.2.1 of this appendixDHR = as defined in 10.2.1 of this appendix3.412 = conversion to express energy in terms of KBtu instead of kilowatt-hoursAFUE = as defined in 11.1 of ANSI/ASHRAE Standard 103-1993, (incorporated byreference, see §430.22) in percent,E in = Steady state electric rated power,in kilowatts, from section 9.3 ofANSI/ASHRAE Standard 103-1993.