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Federal Register / Vol. 86, No. 134 / Friday, July 16, 2021 / Proposed Rules the test. Although equipment with pass-through doors are subject to the door opening requirements of ASHRAE
722005 and would therefore have the same door opening sequences as nonpass-through CRE i.e., only the doors on one side of the equipment would be opened, CRE with pass-through doors may have a different tested energy performance than comparable CRE
without pass-through doors. The presence of multiple doors introduces additional potential heat leak pathways to the refrigerated cabinet, which could increase energy use. For example, passthrough doors require additional door gaskets, glass panels for transparent equipment classes, and, in some cases, anti-sweat heaters.
Issue 4: DOE requests comment and supporting data on whether passthrough doors are a performance-related feature that justifies a different energy conservation standard than other similar CRE without pass-through doors. DOE
seeks data and performance information regarding the performance impacts of pass-through door models compared to similar non-pass-through CRE.
2. Potential New Equipment Categories DOE is aware of certain equipment that meets the CRE definition at 10 CFR
431.62, but for which there are no current DOE test procedures or energy conservation standards in the case of refrigerated salad bars, buffet tables, and preparation tables; additional pull-down temperature applications; and chef bases or griddle stands or for which new test procedures and equipment classes may be appropriate in the case of high-temperature CRE and models with dedicated remote condensing units. In a separate RFI to consider amended test procedures for CRE, DOE
requested feedback on appropriate definitions and test procedures for these
potential new equipment categories. 86
FR 31182 June 2021 Test Procedure RFI. If DOE were to establish test procedures for these equipment categories, DOE requests information to determine how to organize this equipment into additional equipment classes, if necessary, when considering potential energy conservation standards.
Issue 5: DOE requests comment on whether equipment capacity or any other performance-related features for these potential new equipment categories would justify a different energy conservation standard compared to other CRE currently subject to energy conservation standards or to other equipment within that same category.
For example, refrigerated salad bars, buffet tables, and preparation tables may require separate equipment classes for equipment with and without refrigerated storage compartments. DOE
also requests comment on whether the equipment characteristics delineating the existing CRE equipment classes would similarly apply to these potential new equipment categories.
B. Significant Savings of Energy On March 28, 2014, DOE established an energy conservation standard for CRE
that is expected to result in 2.89
quadrillion British thermal units quads of site energy savings over a 30-year period. Additionally, in the March 2014 Final Rule, DOE estimated that an energy conservation standard established at an energy use level equivalent to that achieved using the maximum available technology maxtech would have resulted in 4.21
additional quads of savings. 79 FR
17726, 17806.
While DOEs request for information is not limited to the following issues, DOE is particularly interested in comment, information, and data on the
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following topics to inform whether potential amended energy conservation standards would result in a significant savings of energy.
1. Shipments For the March 2014 Final Rule, DOE
did not obtain shipments data from a single source, but used data from multiple sources to estimate shipments and cross-verify the data from one source to another. Those sources were 2005 shipments data provided by the Air-Conditioning, Heating, and Refrigeration Institute AHRI as part of its comments on the 2006 rulemaking Framework document; 5 a CRE market report by Freedonia Group, Inc.; 6 a 2008
and a 2012 market report by the North American Association of Food Equipment Manufacturers; 7 8 a 2009
DOE report prepared by Navigant Consulting on CRE; 9 CRE shipments from ENERGY STAR; 10 and CRE
saturation estimates calculated from the Energy Information Administration EIA Commercial Buildings Energy Consumption Survey CBECS for 1999 11 and 2003.12 Based on these data sources, DOE developed an allocation of shipments for the 25 equipment classes primary equipment classes that were analyzed from a total of 49 overall in the March 2014 Final Rule. In addition, considering commercial floorspace projections and CRE market saturations, DOE developed an estimate of CRE
shipments projections. Table II.1 shows the allocation of CRE for the 25 primary equipment classes, expressed in linear feet of shipped units 13 and Table II.2
shows total CRE shipments between 2014 and 2020, as projected in the March 2014 Final Rule. See chapter 9 of the March 2014 Final Rule TSD for details on the development of shipments estimates.

TABLE II.1PERCENT OF SHIPPED LINEAR FEET FOR CRE BY EQUIPMENT CLASS
Equipment class
Percent
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VOP.RC.M
VOP.RC.L
VOP.SC.M
VCT.RC.M
VCT.RC.L
VCT.SC.M
VCT.SC.L
5 Docket No. EERE2006STD0126, ARI, No. 7, Exhibit B at p. 1.
6 Freedonia Group, Inc. Commercial Refrigeration Equipment to 2014. 2010. Cleveland, OH. Study 2261. https www.freedoniagroup.com/
Commercial-Refrigeration-Equipment.html.
7 North American Association of Food Equipment Manufacturers. 2008 Size and Shape of Industry.
2008. Chicago, IL.

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10.3
0.5
1.3
0.8
10.7
4.8
0.2

Equipment class SVO.SC.M
SOC.RC.M
SOC.SC.M
HZO.RC.M
HZO.RC.L
HZO.SC.M
HZO.SC.L

8 North American Association of Food Equipment Manufacturers. 2012 Size and Shape of Industry.
2012. Chicago, IL.
9 Navigant Consulting, Inc. Energy Savings Potential and R&D Opportunities for Commercial Refrigeration. 2009. Prepared by Navigant Consulting, Inc. for the U.S. Department of Energy, Washington, DC.
10 Energy Star. Unit Shipment and Sales Data Archives. Available at: https www.energystar.gov/

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Percent 1.1
2.1
0.2
1.3
4.0
0.1
0.2

index.cfm?c=partners.unit_shipment_data_
archives.
11 Available at https www.eia.gov/consumption/
commercial/data/1999/.
12 Available at https www.eia.gov/consumption/
commercial/data/2003/.
13 Historical linear feet of shipped units is the figure used by industry to depict the annual amount of CRE capacity shipped, and is an alternative way to express shipments data.

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