This subpart contains energy conservation requirements for commercial ice makers, pursuant to Part C of Title III of the Energy Policy and Conservation Act, as amended, 42 U.S.C. 6311-6317.

§431.132 Definitions concerning automatic commercial ice makers.

Automatic commercial ice maker means a factory-made assembly (not necessarily shipped in 1 package) that—

(1) Consists of a condensing unit and ice-making section operating as an integrated unit, with means for making and harvesting ice; and

(2) May include means for storing ice, dispensing ice, or storing and dispensing ice.

Basic model means all units of a given type of covered product (or class thereof) manufactured by one manufacturer, having the same primary energy source, and which have essentially identical electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency.

Batch type ice maker means an ice maker having alternate freezing and harvesting periods. This includes automatic commercial ice makers that produce cube type ice and other batch technologies. Referred to as cubes type ice maker in AHRI 810 (incorporated by reference, see §431.133).

Continuous type ice maker means an ice maker that continually freezes and harvests ice at the same time.

Cube type ice means ice that is fairly uniform, hard, solid, usually clear, and generally weighs less than two ounces (60 grams) per piece, as distinguished from flake, crushed, or fragmented ice. Note that this conflicts and takes precedence over the definition established in AHRI 810 (incorporated by reference, see §431.133), which indicates that “cube” does not reference a specific size or shape.

Energy use means the total energy consumed, stated in kilowatt hours per one-hundred pounds (kWh/100 lb) of ice stated in multiples of 0.1. For remote condensing (but not remote compressor) automatic commercial ice makers and remote condensing and remote compressor automatic commercial ice makers, total energy consumed shall include the energy use of the ice-making mechanism, the compressor, and the remote condenser or condensing unit.

Harvest rate means the amount of ice (at 32 degrees F) in pounds produced per 24 hours.

Ice hardness factor means the latent heat capacity of harvested ice, in British thermal units per pound of ice (Btu/lb), divided by 144 Btu/lb, expressed as a percent.

Ice-making head means automatic commercial ice makers that do not contain integral storage bins, but are generally designed to accommodate a variety of bin capacities. Storage bins entail additional energy use not included in the reported energy consumption figures for these units.

Maximum condenser water use means the maximum amount of water used by the condensing unit (if water-cooled), stated in gallons per 100 pounds (gal/100 lb) of ice, in multiples of 1.

Remote compressor means a type of automatic commercial ice maker in which the ice-making mechanism and compressor are in separate sections.

Remote condensing means a type of automatic commercial ice maker in which the ice-making mechanism and condenser or condensing unit are in separate sections.

Self-contained means a type of automatic commercial ice maker in which the ice-making mechanism and storage compartment are in an integral cabinet.

[70 FR 60415, Oct. 18, 2005, as amended at 71 FR 71371, Dec. 8, 2006; 76 FR 12503, Mar. 7, 2011; 77 FR 1613, Jan. 11, 2012]

Test Procedures

§431.133 Materials incorporated by reference.

(a) General. We incorporate by reference the following standards into Subpart H of Part 431. The material listed has been approved for incorporation by reference by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Any subsequent amendment to a standard by the standard-setting organization will not affect the DOE regulations unless and until amended by DOE. Material is incorporated as it exists on the date of the approval and a notice of any change in the material will be published in the Federal Register. All approved material is available for inspection at the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, 6th Floor, 950 L'Enfant Plaza SW., Washington, DC 20024, (202) 586-2945, or go to: http://www1.eere.energy.gov/buildings/appliance__standards/. Also, this material is available for inspection at National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030 or go to http://www.archives.gov/federal__register/code__of__federal__regulations/ibr__locations.html. Standards can be obtained from the sources listed below.

(b) AHRI. Air-Conditioning, Heating, and Refrigeration Institute, 2111 Wilson Blvd., Suite 500, Arlington, VA 22201, (703) 524-8800, [email protected], or http://www.ahrinet.org.

(1) AHRI Standard 810-2007 with Addendum 1, (“AHRI 810”), Performance Rating of Automatic Commercial Ice-Makers, March 2011; IBR approved for §§431.132 and 431.134.

(2) [Reserved]

(c) ASHRAE. American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., 1791 Tullie Circle NE., Atlanta, GA 30329, (404) 636-8400, [email protected], or http://www.ashrae.org.

(1) ANSI/ASHRAE Standard 29-2009, (“ANSI/ASHRAE 29”), Method of Testing Automatic Ice Makers, (including Errata Sheets issued April 8, 2010 and April 21, 2010), approved January 28, 2009; IBR approved for §431.134.

(2) [Reserved]

[77 FR 1613, Jan. 11, 2012]

§431.134 Uniform test methods for the measurement of energy and water consumption of automatic commercial ice makers.

(a) Scope. This section provides the test procedures for measuring, pursuant to EPCA, the energy use in kilowatt hours per 100 pounds of ice (kWh/100 lb ice) and the condenser water use in gallons per 100 pounds of ice (gal/100 lb ice) of automatic commercial ice makers with capacities between 50 and 4,000 pounds of ice per 24 hours.

(b) Testing and Calculations. Measure the energy use and the condenser water use of each covered product by conducting the test procedures set forth in AHRI 810, section 3, “Definitions,” section 4, “Test Requirements,” and section 5, “Rating Requirements” (incorporated by reference, see §431.133). Where AHRI 810 references “ASHRAE Standard 29,” ANSI/ASHRAE Standard 29-2009 (incorporated by reference, see §431.133) shall be used. All references to cube type ice makers in AHRI 810 apply to all batch type automatic commercial ice makers.

(1) For batch type automatic commercial ice makers, the energy use and condenser water use will be reported as measured in this paragraph (b), including the energy and water consumption, as applicable, of the ice-making mechanism, the compressor, and the condenser or condensing unit.

(2)(i) For continuous type automatic commercial ice makers, determine the energy use and condenser water use by multiplying the energy consumption or condenser water use as measured in this paragraph (b) by the ice hardness adjustment factor, determined using the following equation:

View or download PDF

(ii) Determine the ice hardness factor by following the procedure specified in the “Procedure for Determining Ice Quality” in section A.3 of normative annex A of ANSI/ASHRAE 29 (incorporated by reference, see §431.133), except that the test shall be conducted at an ambient air temperature of 70 °F ±1 °F, with an initial water temperature of 90 °F ±1 °F, and weights shall be accurate to within ±2 percent of the quantity measured. The ice hardness factor is equivalent to the corrected net cooling effect per pound of ice, line 19 in ANSI/ASHRAE 29 Table A1, where the calorimeter constant used in line 18 shall be that determined in section A2 using seasoned, block ice.

[77 FR 1613, Jan. 11, 2012]

Energy Conservation Standards

§431.136 Energy conservation standards and their effective dates.

(a) All basic models of commercial ice makers must be tested for performance using the applicable DOE test procedure in §431.134, be compliant with the applicable standards set forth in paragraphs (b) through (d) of this section, and be certified to the Department of Energy under 10 CFR part 429 of this chapter.

(b) Each cube type automatic commercial ice maker with capacities between 50 and 2,500 pounds per 24-hour period manufactured on or after January 1, 2010 and before January 28, 2018, shall meet the following standard levels:

Equipment type	Type of cooling	Harvest rate lb ice/24 hours	Maximum energy use kWh/100 lb ice	Maximum condenser water use¹ gal/100 lb ice
Ice-Making Head	Water	<500	7.8-0.0055H²	200-0.022H.
Ice-Making Head	Water	≥500 and <1,436	5.58-0.0011H	200-0.022H.
Ice-Making Head	Water	≥1,436	4.0	200-0.022H.
Ice-Making Head	Air	<450	10.26-0.0086H	Not Applicable.
Ice-Making Head	Air	≥450	6.89-0.0011H	Not Applicable.
Remote Condensing (but not remote compressor)	Air	<1,000	8.85-0.0038H	Not Applicable.
Remote Condensing (but not remote compressor)	Air	≥1,000	5.1	Not Applicable.
Remote Condensing and Remote Compressor	Air	<934	8.85-0.0038H	Not Applicable.
Remote Condensing (but not remote compressor)	Air	≥934	5.3	Not Applicable.
Self-Contained	Water	<200	11.40-0.019H	191-0.0315H.
Self-Contained	Water	≥200	7.6	191-0.0315H.
Self-Contained	Air	<175	18.0-0.0469H	Not Applicable.
Self-Contained	Air	≥175	9.8	Not Applicable.

¹Water use is for the condenser only and does not include potable water used to make ice.

²H = harvest rate in pounds per 24 hours, indicating the water or energy use for a given harvest rate.

Source: 42 U.S.C. 6313(d).

(c) Each batch type automatic commercial ice maker with capacities between 50 and 4,000 pounds per 24-hour period manufactured on or after January 28, 2018, shall meet the following standard levels:

Equipment type	Type of cooling	Harvest rate lb ice/24 hours	Maximum energy use kilowatt-hours (kWh)/100 lb ice¹	Maximum condenser water use gal/100 lb ice²
Ice-Making Head	Water	< 300	6.88-0.0055H	200-0.022H.
Ice-Making Head	Water	≥300 and <850	5.80-0.00191H	200-0.022H.
Ice-Making Head	Water	≥850 and <1,500	4.42-0.00028H	200-0.022H.
Ice-Making Head	Water	≥1,500 and <2,500	4.0	200-0.022H.
Ice-Making Head	Water	≥2,500 and <4,000	4.0	145.
Ice-Making Head	Air	< 300	10-0.01233H	NA.
Ice-Making Head	Air	≥ 300 and < 800	7.05-0.0025H	NA.
Ice-Making Head	Air	≥ 800 and < 1,500	5.55-0.00063H	NA.
Ice-Making Head	Air	≥ 1500 and < 4,000	4.61	NA.
Remote Condensing (but not remote compressor)	Air	< 988	7.97-0.00342H	NA.
Remote Condensing (but not remote compressor)	Air	≥ 988 and < 4,000	4.59	NA.
Remote Condensing and Remote Compressor	Air	< 930	7.97-0.00342H	NA.
Remote Condensing and Remote Compressor	Air	≥ 930 and < 4,000	4.79	NA.
Self-Contained	Water	< 200	9.5-0.019H	191-0.0315H.
Self-Contained	Water	≥ 200 and < 2,500	5.7	191-0.0315H.
Self-Contained	Water	≥ 2,500 and < 4,000	5.7	112.
Self-Contained	Air	< 110	14.79-0.0469H	NA.
Self-Contained	Air	≥ 110 and < 200	12.42-0.02533H	NA.
Self-Contained	Air	≥ 200 and < 4,000	7.35	NA.

¹H = harvest rate in pounds per 24 hours, indicating the water or energy use for a given harvest rate. Source: 42 U.S.C. 6313(d).

²Water use is for the condenser only and does not include potable water used to make ice.

(d) Each continuous type automatic commercial ice maker with capacities between 50 and 4,000 pounds per 24-hour period manufactured on or after January 28, 2018, shall meet the following standard levels:

Equipment type	Type of cooling	Harvest rate lb ice/24 hours	Maximum energy use kWh/100 lb ice¹	Maximum condenser water use gal/100 lb ice²
Ice-Making Head	Water	<801	6.48-0.00267H	180-0.0198H.
Ice-Making Head	Water	≥801 and <2,500	4.34	180-0.0198H.
Ice-Making Head	Water	≥2,500 and <4,000	4.34	130.5.
Ice-Making Head	Air	<310	9.19-0.00629H	NA.
Ice-Making Head	Air	≥310 and <820	8.23-0.0032H	NA.
Ice-Making Head	Air	≥820 and <4,000	5.61	NA.
Remote Condensing (but not remote compressor)	Air	<800	9.7-0.0058H	NA.
Remote Condensing (but not remote compressor)	Air	≥800 and <4,000	5.06	NA.
Remote Condensing and Remote Compressor	Air	<800	9.9-0.0058H	NA.
		≥800 and <4,000	5.26	NA.
Self-Contained	Water	<900	7.6-0.00302H	153-0.0252H.
Self-Contained	Water	≥900 and <2,500	4.88	153-0.0252H.
Self-Contained	Water	≥2,500 and <4,000	4.88	90.
Self-Contained	Air	<200	14.22-0.03H	NA.
Self-Contained	Air	≥200 and <700	9.47-0.00624H	NA.
Self-Contained	Air	≥700 and <4,000	5.1	NA.

¹H = harvest rate in pounds per 24 hours, indicating the water or energy use for a given harvest rate. Source: 42 U.S.C. 6313(d).

²Water use is for the condenser only and does not include potable water used to make ice.

[80 FR 4754, Jan. 28, 2015]

Need assistance?