ENERGY STAR Commercial Refrigerators And Freezers

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ENERGY STAR Commercial Refrigerators andFreezersDraft 1 Version 3.0 SpecificationStakeholder MeetingChicago, ILMay 20, 2013

Call-in Information Audio provided via conference call in:Call in: 1-877-423-6338 (in the US, Canada) 1-571-281-2578 (outside the US, Canada)Code:132085 Phone lines will remain open during thepresentation to allow for open discussion Please keep phone lines on mute (*6) unlessspeaking2

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps3

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps4

Introduction EPA thanks all stakeholders who have beenparticipating in the qualification of models toENERGY STAR as well as your activeparticipation in development of the ENERGYSTAR specification for CommercialRefrigerators and Freezers Stakeholder participation is critical to thespecification development4

Purpose of the Revision ENERGY STAR market penetration is high– 2011 Unit Shipment report estimates at 65% ENERGY STAR qualified product data showsopportunity to provide further productdifferentiation and additional savings potential– Set new efficiency criteria such that approximately25% meet the new levels. Set appropriate efficiency criteria to re-engageutility programs in providing incentives for energyefficient commercial refrigeration Align definitions and testing requirements with6the current DOE federal standard

History of the Specification Version 1.0– Went into effect September 1, 2001– Set levels for Refrigerators/Freezers/RefrigeratorFreezers/Ice Cream FreezersReach-In Refrigerators, Roll-In/Thru, Pass-Thru, Undercounter (Solid Door)February 2001 CEC database (105 Units)Energy Consumption dercounter42001020304050Internal Volume (cubic feet)6070807

History of the Specification, cont. Version 2.0– Added glass door to scope – effective April 1, 2009– V2 levels for solid doors went in effect January1, 2010 Coincide with DOE regulation effective date– Excluded lab grade– 44 partners have currently over 1000 qualified models 876 certified refrigerators and 279 freezersDaily Energy Consumption(kWh/day)15Solid Door RefrigeratorsES V.2US Fed StdVertical Refrigerators: Solid DoorAll Volumes (n 126)105800204060AHAM Volume(cu. ft.) 80100120

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps9

Changes Proposed in Draft 1 Version3.0 DefinitionsScopeDetermining Refrigerated VolumeMaximum Daily Energy Consumption (MDEC)requirements Test Method Reporting Requirements10

Definitions Revised the following definitions to align withthose in the 10 CFR §431.62:– Commercial Refrigerator, Freezer, and RefrigeratorFreezer– Commercial Hybrid Refrigerator, Freezer, andRefrigerator-Freezer– Horizontal Closed– Horizontal Open– Vertical Closed* From U.S. Department of Energy (DOE) FinalRule for Commercial Refrigeration Equipment– Vertical Open(Federal Register, 77 FR 10292, 10318,February 21, 2012, Subpart C of 10 CFR Part11431)

Commercial Refrigerator, Freezer, andRefrigerator-FreezerV2.1 Commercial Food grade Refrigerator: : Arefrigeration cabinet designed for storing foodproducts at temperatures above 32 degreesFahrenheit (F) but no greater than 40 degreesF and intended for commercial use. Forpurposes of ENERGY STAR qualification,set-point temperatures must represent asshipped conditions. Commercial Food-grade Freezer: : Arefrigeration cabinet designed for storing foodproducts at temperatures of 0 degrees F andintended for commercial use. For purposes ofENERGY STAR qualification, set-pointtemperatures must represent as shippedconditions. Refrigeration Cabinet: A refrigerator or freezerused for storing food products at specifiedtemperatures, with the condensing unit andcompressor built into the cabinet, and designedfor use by commercial or institutional facilities,other than laboratory settings. These units maybe vertical or chest configurations and maycontain a worktop surface.Draft 1 V3.0 * Refrigeration equipment that:(a) is not a consumer product (as definedin §431.2 of part 430);(b) is not designed and marketedexclusively for medical, scientific, orresearch purposes;(c) operates at a chilled, frozen,combination chilled and frozen, or variabletemperature;(d) displays or stores merchandise andother perishable materials horizontally,semi-vertically, or vertically;(e) has transparent or solid doors, slidingor hinged doors, a combination of hinged,sliding, transparent, or solid doors, or nodoors;(f) is designed for pull-down temperatureapplications or holding temperatureapplications; and(g) is connected to a self-contained12condensing unit or to a remote condensingunit

Commercial Hybrid Refrigerator,Freezer, and Refrigerator-FreezerV2.1 Not defined.Draft 1 V3.0* A commercial refrigerator,freezer, or refrigeratorfreezer that has two ormore chilled and/orfrozen compartments thatare:(a) in two or moredifferent equipmentfamilies,(b) contained in onecabinet, and(c) solid as a single unit.13

Horizontal ClosedV2.1Draft 1 V3.0* Chest Configuration: Anenclosed refrigerationcabinet to which accessis gained only through atop - opening door. Equipment with hinged orsliding doors and a doorangle greater than orequal to 45 .14

Horizontal OpenV2.1Draft 1 V3.0* Not specifically defined. Equipment without doorsand an air-curtain anglegreater than or equal to80 from the vertical.15

Vertical ClosedV2.1Draft 1 V3.0* Not specifically defined. Equipment with hinged orsliding doors and a doorangle less than 45 .16

Vertical OpenV2.1Draft 1 V3.0* Not specifically defined. Equipment without doorsand an air-curtain anglegreater than or equal to0 and less than 10 fromthe vertical.17

Horizontal OpenV2.1Draft 1 V3.0* Not specifically defined. Equipment without doorsand an air-curtain anglegreater than or equal to80 from the vertical.18

Ice Cream FreezerV2.1Draft 1 V3.0* Not specifically defined. A Commercial freezerthat is designed tooperate at or below -5 F(-21 C) and that themanufacturer designs,markets, or intends forthe storing, displaying, ordispensing of ice cream.19

Door AngleV2.1 Not specifically defined.Draft 1 V3.0* Door Angle:– For equipment with a flat door,the angle between a verticalline and the line formed by theplane of the door, when theequipment is viewed in crosssection; and– For equipment with curveddoors, the angle formedbetween a vertical line and thestraight line drawn byconnecting the top and bottompoints where the display areatransparent joins the cabinet,when the equipment is viewedin cross-section.20

Basic ModelV2.1Draft 1 V3.0* Product Family: Variations ofone model offered within asingle product line withdifferences in aesthetics only.Individual models representedby a product family must bebased on the same basicengineering design and havethe same energy consumption.Examples of acceptableaesthetic differences includeexternal finish, color, or dooropening orientation (leftopening versus right -opening). Basic Model: All units of agiven type of commercialrefrigerator, freezer, orrefrigerator-freezer (or classthereof) manufactured by onemanufacturer that have thesame primary energy source,which have electricalcharacteristics that areessentially identical, and whichdo not have any differingelectrical, physical, orfunctional characteristics thataffect energy consumption.21

Definitions from V2.1 RetainedV2.1Draft 1 V3.0 Solid Door: Less than 75% of the frontsurface area is glass. Solid Door: A door with less than 75%of the surface area is composed of atransparent material. Glass Door: Greater than, or equal to,75%of the front surface area is glass. Transparent Door: A door with greaterthan or equal to 75% of the surfacearea is composed of a transparentmaterial. Solid Door Cabinet: A commercialrefrigerator, freezer, or refrigeratorfreezer in which all outer doors on allsides of the unit are solid doors. Thesedoors may be sliding or hinged Transparent Door Cabinet: A commercialrefrigerator, freezer, or refrigeratorfreezer in which all outer doors on atleast one side of the unit are transparent 22doors. These doors may be sliding orhinged.

Definitions from V2.1 RetainedV2.1Draft 1 V3.0 Mixed Solid/Glass Door Cabinet: Acommercial food-graderefrigerator or freezer in which allouter doors on at least one side ofthe unit are a combination of solidand glass doors. A unit which hasall glass doors on one side and acombination of solid and glassdoors on another is considered aglass door cabinet.Mixed Solid/Transparent DoorCabinet: A commercial refrigerator,freezer, or refrigerator-freezer inwhich all outer doors on at leastone side of the unit are acombination of solid andtransparent doors. A unit whichhas all transparent doors on oneside and a combination of solidand transparent doors on anotheris considered a transparent doorcabinet.23

Definitions from V2.1 Not Included Worktop Surface: A solid working surface. Theworking surface may be a cutting board, astainless steel work surface, or a stone slab.This surface cannot add to the total energyconsumption of the unit.24

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps25

Scope Same between V2.1 andV3.0:––––––––Reach in, roll in, pass throughMerchandisersUndercounterMilk coolersBar coolersGlass frostersBeer dispensingBunker freezers Excluded:––––––DrawerPrep tablesDeli casesOpen air unitsDisplay casesHybridrefrigerator/freezers– Ice cream freezers– Laboratory grade– Residential26

Ice Cream Freezers Efficiency requirements set for Ice CreamFreezers in V1.0 Specific requirements for Ice Cream Freezerswas dropped in Draft 1 V2.0– Revised integrated average product temperature forice cream freezers to be consistent with Federalregulations (-15 º F)– limited data and interest for separate category forself-contained commercial ice cream freezers– If units met the definition and operated at theintegrated average product testing temperature forcommercial food-grade freezer cabinets (0 F 2 F),then eligible to qualify for ENERGY STAR.27

Prep Tables ASTM F2143-04: Standard Test Method forPerformance of Refrigerated Buffet andPreparation Tables California Energy Commission (CEC) dataavailable (prep tables only)– 255 individually listed models– 6 manufacturers– 8 brands28

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps29

Determining Refrigerated Volume V2.1 – referenced the AHAM HRF 1-2004 todetermined interior volume V3.0 D1 – references the DOE test method 10CFR §431.64 to determine refrigerated volume– which references the AHAM HRF–1–2004, ‘‘Energy,Performance and Capacity of Household Refrigerators,Refrigerator-Freezers and Freezers,’’ (Incorporated by reference,see § 431.63) section 3.21, ‘‘Volume,’’ sections 4.1 through 4.3,‘‘Method for Computing Total Refrigerated Volume and TotalShelf Area of Household Refrigerators and Household WineChillers,’’ and sections 5.1 through 5.3, ‘‘Method for ComputingTotal Refrigerated Volume and Total Shelf Area of HouseholdFreezers.’’30

Alternative Refrigerants Launching V3.0, EPA asked about theprevalence and energy impacts associated withnatural refrigerants with commercial refrigerationequipment Responses noted:– current limited supply of units in the U.S. market butpotentially greater percentage in near future– Requiring alternative components and redesigns toaddress alternative refrigeration systems for safetyand efficiency - adding to the cost of the equipment Diverse opinions on relative impact on unitsenergy performance31

Alternative Refrigerants, cont. At this time, EPA does not see a need to createa separate classification or allowance For V3.0, EPA is proposing to continue tomaintain separate levels for commercialrefrigerators and freezers based solely on:––––configuration,application,size, anddoor type. Does not include refrigerant type as adifferentiating factor32

Significant Digits and Rounding All calculations shall be carried out with directlymeasured (unrounded) values. Final ratings fordaily energy consumption should be rounded to0.01 kWh increments in accordance with theDOE test procedure provisions. Directly measured or calculated values that aresubmitted for reporting on the ENERGY STARwebsite shall be calculated in accordance withthe requirements for determining certified ratingsfor DOE.33

Testing Test method to be used to determine ENERGYSTAR qualification:– 10 CFR Part 431 Subpart C,– 10 CFR Part 431.64 and– 10 CFR Part 431.66(d) Only relevant for horizontal and vertical closedrefrigerator and freezers. Integrated average temperatures for testing– No longer listed but now references DOE testcondition requirements34

Integrated Average TemperaturesCategoryTest procedure prior toJanuary 1, 2016(i) Refrigerator with SolidARI Standard 1200-2006Door(s)Test procedure on orafter January 1, 2016Integrated averagetemperaturesAHRI Standard 1200(I-P)-201038 F ( 2 F).(ii) Refrigerator withTransparent Door(s)ARI Standard 1200-2006AHRI Standard 1200(I-P)-201038 F ( 2 F).(iii) Freezer with SolidDoor(s)ARI Standard 1200-2006AHRI Standard 1200(I-P)-20100 F ( 2 F).(iv) Freezer withTransparent Door(s)ARI Standard 1200-2006AHRI Standard 1200(I-P)-20100 F ( 2 F).

Additional Test Conditions Removed the additional test conditions from theENERGY STAR specification (4.E and 4.E)– Requiring manual controlled standard accessories tobe in the “On” positing during testing– Power management not impacting integrated averagetemperature For ENERGY STAR, all eligible commercialrefrigerators and freezers with standardaccessories and power management devicesshall undergo testing as specified in § 431.64.36

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps37

Guiding Principles Reaffirmed1. Significant energy savings can be realized on a nationalbasis.2. Product performance can be maintained or enhancedwith increased energy efficiency.3. Purchasers recover their investment in increasedenergy efficiency within a reasonable period of time.4. Energy-efficiency can be achieved through multipletechnologies.5. Product energy consumption and performance can bemeasured and verified with testing.6. Labeling would effectively differentiate products and bevisible for purchasers.38

Data Set and Methodology Data set combines non-ENERGY STAR modeldata listed in the CEC database with models onthe ENERGY STAR qualified product listing(QPL)– 894 unique models from ENERGY STAR QPL– 541 unique models from CEC directory (date added:2007 – 2013 models)– 1,435 total unique models in the data set Data set is skewed by multiple modelsrepresenting the same design/MDEC values39

Data Set and Methodology, cont.Extracted the QPL data for each subcategory.Removed any duplicate models (e.g., models that met the same “basic family”definition with the same brand name and identical refrigerated volume and DEC).14Daily Energy Consumption (kWh/day) 1210864200246810Refrigerator Volume (cu. ft.)QPL DataLinear (V2.1 Level)1214

Data Set and Methodology, cont.Criteria for adding CEC data: The CEC data must meet the ENERGY STAR Draft 1V3.0 scope. In an effort to avoid duplicate data points, no CECmodels shall meet the V2.1 levels. The models shall not have been added to the CECdatabase prior to 2007. Any unique models that were added after 2007 andprior to 2010, but do not meet the current DOEminimum levels were removed.

Draft 1 ProposedMax Daily Energy limitTable 1: ENERGY STAR Requirements for Commercial Refrigerators, Freezers, and RefrigeratorFreezersProduct Volume (in cubic feet)RefrigeratorFreezerVCS. SC. MVCS.SC.L0.11V 0.700.05V 1.350.04V 1.640.02V 2.950.25V 1.200.29V 0.450.12V 6.100.18V 3.20VCT.SC.MVCT.SC.L0.10V 1.070.13V 0.800.04V 3.800.05V 3.750.61V 0.890.30V 5.500.60V-4.200.30V 11.00Solid or Transparent Door CabinetsHCT.SC.M, HCS.SC.MHCT.SC.L, HCS.SC.LAny volume0.06V 0.600.10V 0.20Vertical ClosedSolid Door Cabinets0 V 1515 V 3030 V 5050 VTransparent Door Cabinets0 V 1515 V 3030 V 5050 VHorizontal Closed44

Qualification Rates on ProposedLevelsRefrigeratorsFreezers Vertical Closed Solid:-0 – 15 cu ft15 – 30 cu ft30 – 50 cu ft 50 cu ft– 22 %– 24 %– 21 %– 20 % Vertical ClosedTransparent:-0 – 15 cu ft15 – 30 cu ft30 – 50 cu ft 50 cu ft Vertical Closed Solid:- 0 – 15 cu ft– 20 %- 15 – 30 cu ft – 25 %- 30 – 50 cu ft – 21 %- 50 cu ft– 23 % Vertical Closed Transparent:– 24 %– 25 %– 24 %– 23 % Horizontal Closed – 23 %- 0 – 15 cu ft–0%- 15 – 30 cu ft– 26 %- 30 – 50 cu ft– 25 %- 50 cu ft– 27 % Horizontal Closed – 22 % No change proposed in V345

Comparison of Standard andSpecificationCalculated Daily Energy Consumption Limits (kW-hr/day)DOE StandardENERGY STARV2.1ENERGY STARV3.0 ProposedRefrigerator –Solid Door(25 cu ft volume)4.543.1252.61Refrigerator –Transparent Door25 cu ft volume)6.344.554.05Freezer –Solid Door(25 cu ft volume)11.389.08.11Freezer –Transparent Door25 cu ft volume)22.8517.32513.2546

5151

Agenda Introduction Draft 1 Proposed changes––––DefinitionsScopeTesting and ReportingEnergy Consumption limits Timeline/Next Steps67

Timeline/Next Steps Launch – October 2012– Webinar November 15, 2012 Draft 1 May, 6 2013– Stakeholder Meeting – May 20, 2013– Comments on Draft 1 due to EPA – May 28, 2013 Draft 2 – July 2013– Comments on Draft 1 due to EPA – August 2013 Draft 3 – September 2013 – if neededFinal Draft – October 2013 – subject to changeFinal – December 2013 – subject to changeEffective –September 2014 – subject to change68

Contact InformationPlease send any additional comments tocommercialrefrigeration@energystar.gov orcontact:Christopher KentEPA ENERGY STAR ProgramKent.Christopher@epa.govAdam SpitzICF InternationalAdam.Spitz@icfi.comQuestions relating to test method should bedirected to Department of EnergyAshley .gov/productdevelopment

Thank you for participating!This presentation as well as all materialrelated to the specification developmentprocess is located atwww.energystar.gov/revisedspecs

Reach-In Refrigerators, Roll-In/Thru, Pass-Thru, Undercounter (Solid Door) February 2001 CEC database (105 Units) 0 2 4 6 8 10 12 14 16 . Commercial Refrigerator, Freezer, and Refrigerator-Freezer V2.1 Commercial Food grade Refrigerator: : A refrigeration cabinet designed for storing food

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