Building Technologies Program eere.energy.gov 1 Public Service of Colorado Ponnequin Wind Farm 

## BUILDING TECHNOLOGIES PROGRAM

Automatic Commercial Ice Maker (ACIM) Test Procedure Notice of Proposed Rulemaking (NOPR) Public Meeting 

## Charles Llenza April 29, 2011 ACIM - 2010-TP-0036@ee.doe.govBuilding Technologies Program eere.energy.gov 2 Other Test Procedure Issues Burden of Testing and Regulatory Review 

## Public Meeting Topics

4 5 Rulemaking History and Timelines 2 Proposed Test Procedure Amendments 3 1 Welcome, Introductions, and Opening Remarks

6 Closing Remarks, Contacts, and InformationBuilding Technologies Program eere.energy.gov 3 

### • To present DOE’s proposed amendments to the automatic commercial ice maker (ACIM) test procedure. • To discuss the notice of proposed rulemaking (NOPR) published in the Federal Register. 76 FR 18428 (April 4, 2011). • To answer questions and seek comments from participants about DOE’s proposals. • Comments may be given during the public meeting and/or submitted after the public meeting in writing no later than June 3, 2011. • Documents and materials from today’s public meeting will be available online: https://www1.eere.energy.gov/buildings/appliance_standards/commercial/automatic_ice_making_equipment.html 

## Public Meeting Purpose 

## Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 4 

### • Meeting Agenda • Introductions • Role of the Facilitator • Ground Rules

– Listen as an ally

– Focus on the issues

– Use short, succinct statements/keep to the point

– One person speak at a time (raise hand to be recognized; state your name for the record)

– Hold sidebar conversations outside the room

– Set cell phones to silent/vibrate • Housekeeping Items 

## Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 5 

## Issue Box - In the test procedure NOPR for automatic commercial ice makers, DOE welcomes comment. Throughout this presentation, specific issues will be raised for discussion on slides such as this, with identifying numbers corresponding to those in the test procedure NOPR document. Request for Comment Format 

## Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 6 

# At this time DOE welcomes opening remarks on the NOPR for the ACIM test procedure. Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 7 Other Test Procedure Issues Burden of Testing and Regulatory Review 

## Public Meeting Topics

4 5 Rulemaking History and Timelines 2 Proposed Test Procedure Amendments 3 1 Welcome, Introductions, and Opening Remarks

Closing Remarks, Contacts, and Information 6Building Technologies Program eere.energy.gov 8 

## Rulemaking History and Timelines

• Energy Policy and Conservation Act (EPCA) of 1975 (Public Law 94- 163) established the energy conservation program.
• Energy Policy Act (EPACT) 2005 amendment to EPCA:

– Prescribed standards for cube ice makers with capacities between 50 and 2,500 lb per 24- hour period effective January 1, 2010. (42 U.S.C. 6313(d)(1))

– Authorized DOE to issue standards for types of automatic commercial ice makers that are not covered by 42 U.S.C. 6313(d)(1).

– Directed DOE to issue, by January 1, 2015, a final rule to determine whether amending the standards set by EPCA is technologically feasible and economically justified. (42 U.S.C. 6313(d)(3)(A)) 

## ACIM Standards Regulatory HistoryBuilding Technologies Program eere.energy.gov 9 

### • DOE is undertaking a standards rulemaking to determine if amended standards are technically feasible and economically justified for automatic commercial ice makers that produce cube type ice with capacities between 50 and 2,500 lb of ice per 24 hours, for which standards were set in EPACT 2005 (docket number EERE - 2010- BT-STD -0037).
• DOE is considering, under 42 U.S.C. 6313(d)(2), standards for:

– Batch type ice makers that produce cube type ice with capacities between 2,500 and 4,000 lb of ice per 24 hours,

– Batch type ice makers that produce other than cube type ice with capacities between 50 and 4,000 lb of ice per 24 hours, and

– Continuous type ice makers equipment with capacities between 50 and 4,000 lb of ice per 24 hours. 

## Rulemaking History and Timelines Ongoing Energy Conservation Standard RulemakingBuilding Technologies Program eere.energy.gov 10 

## Rulemaking History and Timelines

• EPCA, as amended, directs compliance with energy conservation standards using prescribed test procedures. (42 U.S.C. 6291(6)(A))

– Test procedures for automatic commercial ice makers shall be the AirConditioning and Refrigeration Institute (ARI) Standard 810- 2003, “Performance Rating of Automatic Commercial Ice Makers.” (42 U.S.C. 6314(a)(7)(A)) • Pursuant to EPCA, on December 8, 2006 DOE published a test procedure final rule that adopted ARI Standard 810- 2003 as the DOE test procedure, and:

– Referenced the American National Standards Institute (ANSI)/American Society of Heating, Refrigerating and Air- Conditioning Engineers (ASHRAE) Standard 29 - 1988 (RA 2005) as the method of test.

– Adopted a revised method for calculating the energy consumption rate. 

## ACIM Test Procedure Regulatory HistoryBuilding Technologies Program eere.energy.gov 11 

## Rulemaking History and Timelines

• EPCA states that:

– If ARI 810- 2003 is revised the Secretary will amend the DOE test procedure, as necessary, to be consistent with the amended ARI Standard unless to do so would not meet the requirements for test procedures set forth in EPCA. (42 U.S.C. 6314(a)(7)(B))

– At least once every 7 years DOE must conduct an evaluation of each class of covered equipment to determine whether to, among other things, amend the test procedures for such equipment. ( 42 U.S.C. 6314(a )(1))

– Test procedures shall be reasonably designed to reflect energy, or water, use during a representative cycle of use and shall not be overly burdensome to conduct. (42 U.S.C. 6314(2)) 

## Authority to Amend ACIM Test ProcedureBuilding Technologies Program eere.energy.gov 12 

## Rulemaking History and Timelines

• The energy conservation standard rulemaking is in the preliminary analysis stage and the results will be presented in a separate public meeting. Energy Conservation Standards (ECS) Test Procedure (TP) Framework Document Preliminary Analysis NOPR Final Rule
NOPR Final Rule 

## ACIM Standard and Test Procedure Rulemakings ProcessBuilding Technologies Program eere.energy.gov 13 

## Rulemaking History and Timelines

2010

ECS Framework Document Public Meeting December 16, 2010 ECS Preliminary Analysis Public Meeting Planned - Summer 2011 ECS NOPR Public Meeting Planned - Spring 2012

2014 2012 2013 2015 Proposed Energy

Conservation Standard Final Rule Effective Date January 1, 2015 

## ACIM Rulemaking Timeline

TP NOPR Public Meeting

April 29, 2011 2011Building Technologies Program eere.energy.gov 14 Other Test Procedure Issues Burden of Testing and Regulatory Review 

## Public Meeting Topics

4 5 Rulemaking History and Timelines 2 Proposed Test Procedure Amendments 3

1 Welcome, Introductions, and Opening Remarks

Closing Remarks, Contacts, and Information 6Building Technologies Program eere.energy.gov 15 

## DOE’s Proposed Amendments to the ACIM Test Procedure 

## Proposed Test Procedure Amendments 1) Update the references to AHRI 810- 2007 and ASHRAE Standard 29 - 2009. 2) Expand the scope of the test procedure to include batch type (including cube type) equipment with capacities from 50 to 4,000 lb of ice per 24 hours. 3) Provide test methods for continuous type ice makers with capacities from 50 to 4,000 lb of ice per 24 hours. 4) Normalize the measurement of energy and condenser water use for continuous type ice makers based on ice quality (i.e., hardness). 5) Clarify the test method and reporting requirements for remote condensing automatic commercial ice makers designed for connection to compressor racks. 6) Specify an optional test method for modulating capacity ice makers. 7) Discontinue the use of a clarified energy use rate calculation and instead calculate energy use per 100 lb of ice as specified in ASHRAE Standard 29 - 2009.Building Technologies Program eere.energy.gov 16 

## Proposed Test Procedure Amendments ACIM Test Procedure Scope Current Proposed Automatic commercial ice makers that produce cube type ice with capacities between 50 and 2,500 lb per 24 hours. Batch type (including cube type) and continuous type ice makers with capacities between 50 and 4,000 lb per 24 hours.Building Technologies Program eere.energy.gov 17 

## Proposed Test Procedure Amendments Coordination with ACIM Energy Conservation Standard

• EPCA states that any rulemaking to amend a test procedure must determine to what extent, if any, the proposed test procedure would alter the measured energy or water use of a covered product. (42 U.S.C. 6293(e)(1))Building Technologies Program eere.energy.gov 18 

## Proposed Test Procedure Amendments Equipment Type Test Procedure Amendments Measured energy or water use Equipment with standards currently in place • Update the referenced industry test procedures to their most current versions. • Clarify the test method and reporting requirements for

automatic commercial ice makers designed to be connected to a remote compressor rack. • Discontinue the use of a clarified energy use rate equation. Will not change measured energy or water consumption Equipment for which standards are not currently in place • Expand the scope of the test procedure to include batch type (including cube type) equipment with capacities from 50 to 4,000 lb of ice per 24 hours. • Provide test methods for continuous type ice makers with

capacities from 50 to 4,000 lb of ice per 24 hours. • Standardize the measurement of energy and water use for

continuous type ice makers with respect to ice quality. Does not impact standards that are currently in

place but set testing requirements for additional equipment 

### Impact of DOE’s Test Procedure Amendments on ACIM Energy Conservation StandardBuilding Technologies Program eere.energy.gov 19 

## Proposed Test Procedure Amendments

• EPCA provides that if ARI Standard 810- 2003 is amended, the Secretary shall amend the DOE test procedure to be consistent, unless to do so would not meet the EPCA requirements for test procedures. (42 U.S.C. 6314(a)(7)(B)) • A n updated AHRI test procedure has since been published – AHRI Standard 810- 2007.

– AHRI Standard 810- 2007 references the previous ASHRAE Standard 29 - 1988(RA 2005).

– However, in 2009, ASHRAE also updated their test procedure to ASHRAE Standard 29 - 2009. 

## Updated Industry Test ProceduresBuilding Technologies Program eere.energy.gov 20 

### • The new test procedure, AHRI Standard 810- 2007, amends the previous test procedure, ARI Standard 810- 2003, in several ways:

• ASHRAE Standard 29 - 2009 also reflects these changes. 

## Proposed Test Procedure Amendments

1 

### Expands the upper capacity range of covered equipment to 4,000 lb of ice per 24 hours at standard rating conditions. 2 

### Provides definitions and specific test procedures for cube type and continuous type ice makers. 3 

### Provides a definition for ice hardness factor, which is a measure of ice quality or the percentage of solid ice (as opposed to liquid water content )in the ice product of continuous type ice machines. 

## Changes to Industry Test ProceduresBuilding Technologies Program eere.energy.gov 21 

### • DOE proposes referencing AHRI Standard 810- 2007 as the DOE test procedure with ASHRAE Standard 29 - 2009 as the referenced method of test.

• DOE proposes to increase the scope of equipment covered by the test procedure to include batch type and continuous type automatic commercial ice makers, regardless of ice type, with capacities between 50 and 4,000 lb per day. 

## Proposed Test Procedure Amendments

Item 2 - DOE requests comment on updating the referenced industry test procedures to the most current versions and on increasing the scope of equipment covered by the DOE test procedure. 

## Changes to DOE Test ProcedureBuilding Technologies Program eere.energy.gov 22 

### • DOE recognizes that there are automatic ice makers sold for use in commercial applications with capacities larger than 4,000 lb of ice per 24 hours. These machines:

– Represent less than 1 percent of the market.

– Are primarily marketed for industrial use.
• DOE proposes to expand the range of the DOE test procedure to automatic commercial ice makers with harvest rates between 50 and 4,000 lb of ice per 24 hours. 

## Proposed Test Procedure Amendments

Item 3 - DOE requests comment on expanding the capacity range from 50 to 2,500 lb of ice per 24 hours to 50 to 4,000 lb of ice per 24 hours. 

## Equipment with Capacities Greater than 4,000 lb per 24 hoursBuilding Technologies Program eere.energy.gov 23 

### • DOE proposes to:

– Reference the test procedures in AHRI Standard 810- 2007 and ASHRAE Standard 29- 2009 as the test procedures for continuous type ice makers.

– Adopt definitions for continuous type and batch type ice makers. 

## Proposed Test Procedure Amendments Include Test Methods for Continuous Type Ice Makers

Item 4 - DOE requests comment on providing test methods for continuous type ice makers. Additional Item A – DOE requests comment on the proposed definitions for batch type and continuous type ice maker. 

### Definitions: 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, tube type automatic commercial ice makers, and other batch technologies. Also referred to as cube type ice maker in AHRI Standard 810-2007. AHRI Standard 810- 2007’s definition clarifies that “cube” does not reference a specific size or shape and includes all automatic commercial ice makers with alternate freezing and harvesting periods. Continuous type ice maker means an ice maker that continuously freezes and harvests ice at the same time.Building Technologies Program eere.energy.gov 24 

### • Continuous type ice makers typically produce “ice” that is not completely frozen.

– Fraction of completely frozen ice present in the total ice product quantified in terms of ice quality (also referred to as ice hardness).

• Ice quality is directly related to the measured energy and condenser water consumption of these machines.

– Requires more energy and condenser water to produce a given mass of completely frozen ice than flake or nugget ice with 70 to 85% solid ice content.

• DOE proposes to normalize the energy consumption and condenser water use of continuous type ice makers with respect to ice quality relative to the energy required to produce an equivalent mass of ice that is 32 ° F with no liquid water content, starting with 70 ° F water. 

## Proposed Test Procedure Amendments Standardize Ice Quality for Continuous Type Ice MakersBuilding Technologies Program eere.energy.gov 25 

## Proposed Test Procedure Amendments Procedure for Determining the Calorimeter Constant 1. Use Normative Annex A: “Method of Calorimetry,” in ASHRAE Standard 29 - 2009.

– Sections A.1 and A.2 - Calibrate the calorimeter using completely frozen block ice. • The calorimeter constant should not be greater than 1.02 in this step.



### – Section A.3, “Procedure for Determining Ice Quality” - Determine the calorimeter constant using Table A1.
o 

### heat content of solid 32 F ice Calorimeter constant = heat content of ice/water slurry 144 Btu/lb
1.0 for solid ice >1.0 for ice with some liquid water contentBuilding Technologies Program eere.energy.gov 26 

## Proposed Test Procedure Amendments Determine the Ice Quality Adjustment Factor

Btu Btu 144 38 lb lb Ice Quality Adjustment Factor Btu 144 lb Btu 38 lb calorimeter constant     + =     +     Energy to cool water from 70 F to 32 F Latent heat capacity of solid 32 F ice

1.0 for solid ice <1.0 for ice with some liquid water content 

### 2. Use calorimeter constant to determine “Ice Quality Adjustment Factor.”Building Technologies Program eere.energy.gov 27 

## Proposed Test Procedure Amendments

Item 5 - DOE requests comment on the proposed method to normalize energy and condenser water consumption to 32 ° F water with no water content for continuous type ice makers. 

## Scale Energy and Water Use of Continuous Type Ice Makers 

## [ ] [ ] Energy Consumption kWh/100 lb ice Ice Quality Adjustment Factor Measured Energy Consumption from AHRI 810-2007 kWh/100 lb ice = × 

### 3. Multiply energy or water use measured using AHRI Standard 810- 2007 by “Ice Quality Adjustment Factor.”Building Technologies Program eere.energy.gov 28 

### • EPCA establishes energy conservation standards for two types of remote condensing automatic commercial ice makers: 

## Proposed Test Procedure Amendments Remote Condensing Automatic Commercial Ice Makers: Background (1) Remote condensing (but not remote compressor) (2) Remote condensing and remote compressor IMH & compressor Remote Condenser IMH IMH Remote Condensing Unit (compressor and condenser) CRE WICF Remote Condensing Rack (group of compressors,

supplied by others)Building Technologies Program eere.energy.gov 29 

## Proposed Test Procedure Amendments

• Inconsistency in reporting of energy use of remote condensing and remote compressor ice makers:

– Ice makers with dedicated remote condensing units report energy consumption of the total ice making machine, including the ice - making head (IMH), compressor, and condenser.

– Ice makers that are meant to be used with a remote compressor rack that could serve multiple appliances report only the energy use of the IMH. 

## Remote Condensing Unit Testing Issue

DOE considered three potential options to address this issue: 1. A calculation method that applies a default factor to the IMH energy consumption that is representative of remote condenser and compressor rack energy use. 2. A measurement method that measures the energy use of a remote condensing ice maker with a designated remote condenser. 3. Continue to measure and report only energy consumed by the IMH without measuring and reporting remote condenser or compressor energy use.Building Technologies Program eere.energy.gov 30 

### • DOE proposes that all remote condensing and remote compressor ice makers be tested with a dedicated remote condensing unit and report the energy use of the ice making mechanism, the compressor, and the condenser. • DOE believes this will:

– Adequately represent the energy consumption of this equipment without introducing undue burden for a very small equipment class.

– Provide a straightforward and consistent way to compare the performance of remote condensing and remote compressor ice makers, both those sold with dedicated remote condensing units and those designed to be used with remote compressor rack systems.

– Not add significant testing burden. 

## Proposed Test Procedure Amendments Clarify Test Method and Reporting Requirements for Remote Condensing Automatic Commercial Ice Makers

Item 6 - DOE requests comment on the proposal to require testing of all remote condensing ice makers with a dedicated remote condensing unit and reporting of ice making mechanism, compressor, and condenser energy use.Building Technologies Program eere.energy.gov 31 

### • While there are currently no commercialized multiple capacity products or prototypes available, an ice maker could be designed for multiple capacity levels.

– Using single compressor capable of variable capacities or using multiple compressors.

– This would be attractive since ice makers operate at full capacity for only a small portion of the time.

– Multiple capacity equipment could produce ice more efficiently at a lower capacity level because there would be more surface area available relative to the mass flow of refrigerant. 

## Proposed Test Procedure Amendments Potential for Modulating Capacity SystemsBuilding Technologies Program eere.energy.gov 32 

### • Multiple capacity systems can be rated under the current test procedure at their maximum capacity rating.

– Only testing at maximum capacity is required.
• DOE proposes new, optional test procedure for modulating capacity systems.

– Average test results at the maximum and minimum capacity settings.

– Provides opportunity for and incentivizes future development of such systems that could use this technology to obtain a higher efficiency rating. 

## Proposed Test Procedure Amendments

Item 7 - DOE requests comment on the proposal to allow for an optional test procedure for modulating capacity automatic commercial ice makers. Specifically, DOE requests comment on the weighting of the energy consumption at the minimum and maximum capacity settings. 

## Proposed Test Method for Modulating Capacity SystemsBuilding Technologies Program eere.energy.gov 33 

## Proposed Test Procedure Amendments Discontinue the Use of a Clarified Energy Rate Equation Energy Consumed During Testing (kWh) Energy Consumption Rate (per 100 lbs ice) = 100% Mass of Ice Collected During Testing (lb s) × 

### • The current DOE test procedure includes a clarified calculation for determining the energy consumption rate, normalized to 100 lb of ice.

• Presented because DOE felt the calculation normalization of energy consumption rate per 100 lb of ice presented in ASHRAE Standard 29 - 188(RA2005) left room for misinterpretation. • ASHRAE Standard 29 - 1988(RA2005) specifies energy consumption be calculated as follows: 

### 8.4a kWh /100 lb ice 100 8.2a = × Energy consumption Power input in kWh Weight in lb of each intercepted ice sampleBuilding Technologies Program eere.energy.gov 34 

## Proposed Test Procedure Amendments

Item 8 - DOE requests comment on its proposal to incorporate AHRI Standard 810- 2007, with reference to ASHRAE Standard 29 - 2009, as the method of test, without specification or clarification of the calculation for energy consumption rate. 

## Discontinue the Use of a Clarified Energy Rate Equation • The calculation in ASHRAE Standard 29 - 2009 did not change between the 1988 and 2009 versions; however, DOE proposes to remove the clarification for the calculation of energy consumption rate in this rulemaking.

– DOE has reexamined the energy consumption rate calculations contained in the ASHRAE Standard 29 - 2009 test procedures and concluded that the procedure is clear and no ambiguity exists.

– This method may show more consistency in the average energy use rate calculation and is typically used in industry today.Building Technologies Program eere.energy.gov 35 Other Test Procedure Issues Burden of Testing and Regulatory Review 

## Public Meeting Topics

4 5 Rulemaking History and Timelines 2 Proposed Test Procedure Amendments 3 1 Welcome, Introductions, and Opening Remarks

Closing Remarks, Contacts, and Information 6Building Technologies Program eere.energy.gov 36 

### • Other types of automatic commercial ice makers use a batch process to produce cube, cracked, or fragmented ice.
• Manufacturers are currently using the AHRI 810- 2007 test procedure for non - cube batch type ice machines.
• DOE proposes to clarify in the DOE test procedure that tube, cracked, and other batch technologies will be covered by the proposed DOE test procedures and should be tested with the batch type test method. 

## Other Test Procedure Issues Treatment of Other Batch Type Ice Machines

Non - cube batch type ice machine 

### Additional Item B - DOE requests comment on its proposal to test all batch type ice makers using the batch type test method.Building Technologies Program eere.energy.gov 37 

### • The current test procedure does not account for all energy consuming phases of operation.

– Non- ice - making periods not accounted for.

– Although DOE is not required to quantify auxiliary energy use, a measurement of electrical consumption during non - ice - making periods could be incorporated into the test procedure. • DOE found energy use due to controls and electrical sensors during non - ice making periods contributed 1 percent or less to the total energy consumption of the ice maker. • Given the small magnitude of this energy use, DOE believes quantification of auxiliary energy use during non - ice - making periods is not justified. 

## Other Test Procedure Issues

Item 9 - DOE requests comment on its determination that an additional test procedure to quantify auxiliary energy use during non - ice - making periods is not justified. 

## Quantification of Auxiliary Energy UseBuilding Technologies Program eere.energy.gov 38 

### • AHRI Standard 820- 2000, “Ice Storage Bins,” describes a test method for quantifying the effectiveness of ice storage bins.
• Storage bin effectiveness is currently quantified in the Canadian and Australian standards and test procedures for automatic commercial ice makers.
• Ice meltage in storage bins could represent 10 percent or more additional ice production per 24 hours.

– Ice meltage causes equivalent additional energy consumption and condenser water use for a given demand. 

## Other Test Procedure Issues Measurement of Storage Bin Effectiveness Definition: Storage bin effectiveness is a theoretical expression of the fraction of ice that under specific rating conditions would be expected to remain in the ice storage bin 24 hours after it is produced.Building Technologies Program eere.energy.gov 39 

### • Measurement of storage bin effectiveness would cause:

– Inconsistency between energy conservation standards for self-contained and remote condensing ice makers or ice - making heads.

– Increased burden for manufacturers of self- contained units.
• DOE will not include a quantification of meltage in the storage bin at this time. 

## Other Test Procedure Issues Measurement of Storage Bin Effectiveness

Item 10 - DOE requests comments or data related to the impact of storage bin effectiveness on the energy and water consumption of automatic commercial ice makers. Specifically, DOE requests comment on the appropriate test method and metric for storage bin effectiveness and the burden associated with adopting such a test method.Building Technologies Program eere.energy.gov 40 

### • Current DOE test procedure requires reporting of condenser water use only. • At the Framework Document public meeting, DOE considered adding a method to calculate the total water use of automatic commercial ice makers. • EPCA prescribes standards for condenser water use in cube type ice makers and explicitly states that condenser water use does not include potable water used to make ice. (42 U.S.C. 6313(d)(1))
• DOE is not including a measurement for potable water in the proposed amendment to the test procedure. 

## Other Test Procedure Issues

Item 11 - DOE requests comment on not including potable water use in making ice. 

## Establishment of a Metric of Potable Water Used in Making IceBuilding Technologies Program eere.energy.gov 41 

### • DOE understands that water hardness may affect the energy consumption and ice quality of a given automatic commercial ice maker but believes that there is still uncertainty in the causal relationship between water hardness (total dissolved solids and ion concentration) and ice maker performance. • Specifying an appropriate standardized water hardness for use in a test procedure would:

– Increase the testing burden for manufacturers.

– Require additional data or information regarding: (1) The relationship between total dissolved solids, ion concentration, and energy and water use. (2) The magnitude of these effects. (3) Specific testing methodologies that would produce repeatable results. 

### • DOE proposes not to address water hardness in this test procedure. 

## Other Test Procedure Issues

Item 12 - DOE requests additional data that would support evaluation of the need for a standardized water hardness test. 

## Standardization of Water HardnessBuilding Technologies Program eere.energy.gov 42 

### • Both AHRI 810- 2007 and ASHRAE Standard 29 - 2009 require that the ice makers be set up pursuant to a manufacturer’s instruction.

– May not capture the maximum potable water consumption of the unit. • DOE does not believe it is justified to require testing of automatic commercial ice makers at the highest purge setting.

– Potable water used in making ice not regulated.

– No data to validate nor authority to regulate how ice makers are installed. • DOE will not require testing of ice makers at the highest purge setting, but will continue to investigate this issue by gathering data related to national water hardness, the difference between manufacturer specified and maximum purge settings, and the way ice makers are typically installed in the field. 

## Other Test Procedure Issues

Item 13 - DOE requests comment on testing units at the highest water consumption purge setting. Specifically, DOE requests comment on the difference in energy and water consumption when tested at the maximum purge setting versus testing at settings specified by the manufacturer. 

## Test Batch Type Ice Makers at the Highest Purge SettingBuilding Technologies Program eere.energy.gov 43 Other Test Procedure Issues Burden of Testing and Regulatory Review Closing Remarks, Contacts, and Information 

## Public Meeting Topics

4 5 6 Rulemaking History and Timelines 2 Proposed Test Procedure Amendments 3 1 Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 44 

## Burden of Testing and Regulatory Review

• DOE used the Small Business Administration (SBA) definition of small entities:

– Automatic commercial ice maker manufacturers are included in NAICS 333415, “Air- Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing.”

– The SBA standard for small entities in this industry description is less than 750 employees.
• DOE found eight manufacturers of automatic commercial ice makers that qualify as small businesses. DOE must determine whether the rule would result in a significant impact on a substantial number of small entities. 

## Review Under the Regulatory Flexibility ActBuilding Technologies Program eere.energy.gov 45 

## Burden of Testing and Regulatory Review ACIM Test Procedure Scope Current Proposed Automatic commercial ice makers that produce cube type ice with capacities between 50 and 2,500 lb per 24 hours. Batch type (including cube type) and continuous type ice makers with capacities between 50 and 4,000 lb per 24 hours.Building Technologies Program eere.energy.gov 46 

## Burden of Testing and Regulatory Review Assessment of Burden New Test Requirements for: Incremental Testing Burden Batch type ice makers that produce cube type ice with capacities between 2,500 and 4,000 lb of ice per 24 hours – Performing AHRI Standard 810- 2007 test.

– Equivalent to current burden for automatic ice makers that are currently covered by the test procedure. Batch type ice makers that produce other than cube type ice with capacities between 50 and 4,000 lb of ice per 24 hours Continuous type ice makers with capacities between 50 and 4,000 lb of ice per 24 hours – Performing AHRI Standard 810- 2007 test and standardization of ice quality test.Building Technologies Program eere.energy.gov 47 

### • Number of ice makers subject to new testing requirements.

– 30 models will be subject to new testing requirements.

– Each company would introduce a new base model in each year (total of 8 new models for testing) during a 5 -year (2015–2019) analysis time horizon.
• Costs associated with testing.

– Cost of testing estimated as $5,000 to $7,500 (low- end and high - end).

– Additional review and filing costs estimated as 2 hours of an engineer’s time to communicate with the testing laboratory, review test results, prepare adequate documentation, and file the report.

– Annual costs are discounted using a 7 - percent real discount rate, as recommended in OMB Circular A- 94. 

## Burden of Testing and Regulatory Review Potential Burden Due to Performing AHRI Standard 810-2007Building Technologies Program eere.energy.gov 48 

### • Number of continuous type ice makers.

– DOE estimates that 28 percent of all automatic commercial ice makers would be subject to this additional test procedure.
• Costs associated with ice quality test.

– DOE estimates that performing this test will require 2 additional hours of laboratory time, including time to perform necessary calculations, per unit.

– DOE estimates costs associated with the calorimetry test to be approximately 10 percent of the AHRI 810 test, or $500 to $740.

– These costs would not include those associated with transportation, assuming that the unit would be analyzed at the same time as the required AHRI 810 test.

– Annual costs are discounted using a 7 - percent real discount rate, as recommended in OMB Circular A- 94. 

## Burden of Testing and Regulatory Review Potential Burden Due to Ice Quality TestBuilding Technologies Program eere.energy.gov 49 

## Burden of Testing and Regulatory Review Aggregated Estimated Annual Costs of Compliance for Small Businesses (2015–2019) Year Testing Costs Review/ Filing Costs Total Costs Discounted Costs Low End High End Low End High End Low End High End 2015 $154,200 $228,216 $2,490 $156,690 $230,706 $119,538 $176,005 2016 $41,120 $60,858 $664 $41,784 $61,522 $29,791 $43,864 2017 $41,120 $60,858 $664 $41,784 $61,522 $27,843 $40,995 2018 $41,120 $60,858 $664 $41,784 $61,522 $26,021 $38,313 2019 $41,120 $60,858 $664 $41,784 $61,522 $24,319 $35,806 Totals $318,680 $471,646 $5,147 $323,827 $476,793 $227,512 $334,982 Average Cost per Small Business Over 5 Year Period $28,439 $41,873 

### Item 14 - DOE seeks comment on its estimated additional cost of testing due to the new requirements for testing presented in this NOPR. Specifically, DOE seeks comment on the impacts of the additional cost of testing on small manufacturers.Building Technologies Program eere.energy.gov 50 

## Burden of Testing and Regulatory Review Significance of Impact on Small Businesses • DOE determined the significance of the testing burden by comparing the incremental costs of performing the proposed test procedure to the net profits of small manufacturers.

– The average industry net profit margin was estimated at 7.74 percent.

– Total increase in testing burden amounts to approximately 0.8 percent or 1.2 percent of net profits for low- and high - end cost estimates, respectively.
• DOE has determined that the proposed testing procedure amendments would not have a “significant economic impact on a substantial number of small entities,” and the preparation of a regulatory flexibility analysis is not warranted. Item 15 - DOE seeks comment on its reasoning that the proposed test procedure changes would not have a significant impact on a substantial number of small entities.Building Technologies Program eere.energy.gov 51 Proposed Test Procedure Amendments Burden of Testing and Regulatory Review Closing Remarks, Contacts, and Information 

## Public Meeting Topics

4 5 6 Rulemaking History and Timelines 2 Test Procedure Rulemaking Scope 3 1 Welcome, Introductions, and Opening RemarksBuilding Technologies Program eere.energy.gov 52 

## Closing Remarks, Contacts, and Information


# At this time DOE welcomes any closing remarks from interested parties.Building Technologies Program eere.energy.gov 53 

## Closing Remarks, Contacts, and Information Please reference all correspondence for this rulemaking with the following information:

– Title: Automatic Commercial Ice Maker Rulemaking

– Docket Number: EERE -2010- BT-TP-0036, and

– Regulatory Identification Number: RIN 1904-AC38 Email : ACIM -2010-TP-0036@ee.doe.gov Postal Mail: Hand Delivery or Courier: Ms. Brenda Edwards U.S. Department of Energy Building Technologies Program Mailstop: EE - 2J, Room 1J -018 1000 Independence Avenue, SW Washington, DC 20585 -0121 Ms. Brenda Edwards U.S. Department of Energy Building Technologies Program, 6th Floor 950 L’Enfant Plaza, SW Washington, DC 20024 Tel: 202 -586-2945 

## Comment period ends June 3, 2011 ACIM TP Comment Submittal InformationBuilding Technologies Program eere.energy.gov 54 

## Closing Remarks, Contacts, and Information

• DOE Appliance Standards

– http://www1.eere.energy.gov/buildings/appliance_standards/
• Automatic Commercial Ice Maker Rule

– https://www1.eere.energy.gov/buildings/appliance_standards/commercial/autom atic_ice_making_equipment.html
• Contact Charles Llenza, Project Manager, from the Appliance Standards Program for additional information:

– Charles.Llenza@ee.doe.gov

– 202.586.2192
• Contact John Cymbalsky, Supervisor, from the Appliance Standards Program for additional information:

– John.Cymbalsky@ee.doe.gov

– 202.287.1692 

# ACIM TP WebPages and DOE ContactsBuilding Technologies Program eere.energy.gov 55 

# Backup SlidesBuilding Technologies Program eere.energy.gov 56 

## Back Up Slides Definitions

• Section 136(a)(4) of EPACT 2005 defines “automatic commercial ice maker” as:

– [A] factory- made assembly (not necessarily shipped in one package) that – • (A) consists of a condensing unit and ice - making section operating as an integrated unit, with means for making and harvesting ice; and • (B) may include means for storing ice, dispensing ice, or storing and dispensing ice.Building Technologies Program eere.energy.gov 57 • ECS – Energy Conservation Standard. • Ice Making Head (IMH): A model with the ice - making mechanism and the condensing unit in a single package, but with a separate ice storage bin. • Remote Condensing Unit (RCU) or Split System Unit: A model in which the ice making mechanism and condenser or condensing unit are in separate sections. • Self-Contained (SCU): A model in which the ice - making mechanism and storage compartment are in an integral cabinet. • Cubed: Cubed ice machines have an alternate freezing and harvesting period. Water is circulated over an evaporator where it freezes until cubes are fully formed. The cubed ice is then harvested and moved to storage. The ice may be in cube shape, or in a variation of a solid shape. • Flake: Flake ice machines produce ice continuously, usually in a barrel - shaped evaporator. An auger inside the evaporator scrapes ice off the sides into a storage bin. • Nugget: Nugget ice machines use the same process as flake machines but compress the ice flakes into nuggets. 

## Back Up Slides Definitions (cont.)Building Technologies Program eere.energy.gov 58 

## Back Up Slides Prescribed Standards
• EPCA, as amended by EPACT 2005, prescribed standards for automatic commercial ice - makers, effective January 1, 2010. 42 U.S.C. 6313(d) Equipment Type* Type of Cooling Harvest Rate lb ice/24 hours Maximum Energy Use kWh/100 lb ice Maximum Condenser Water Use --gal/100 lb ice Ice - Making Head Water <500 7.80 - 0.0055H b 200 - 0.022H ≥500 and <1,436 5.58 - 0.0011H 200 - 0.022H ≥1,436 4.0 200 - 0.022H Air <450 10.26 - 0.0086H N/A ≥450 6.89 - 0.0011H N/A Remote Condensing (but not remote compressor) Air <1,000 8.85 - 0.0038H N/A ≥1,000 5.10 N/A Remote Condensing and Remote Compressor Air <934 8.85 - 0.0038H N/A ≥934 5.3 N/A Self- Contained Water <200 11.40 - 0.019H 191 - 0.0315H ≥200 7.60 191 - 0.0315H Air <175 18.0 - 0.069H N/A ≥175 9.80 N/A 

### *Applicable to cube machines onlyBuilding Technologies Program eere.energy.gov 59 

## Back Up Slides Certification, Compliance & Enforcement

• Current effective date for compliance with certification provisions is July 5, 2011. • Only electronic submission accepted. Submit online at https://www.regulations.doe.gov/ccms . • Use product- specific, Excel templates provided by DOE. • Submit certification report before distribution in commerce for all new models. • Annual submittal of carry- over products on or before the 1 st 

### of the month specified in the annual certification table (429.12(d)). • No additional certification testing required for annual submission. • Recertify if the redesign of an existing model increases energy consumption resulting in re - rating. 

## Certification RequirementsBuilding Technologies Program eere.energy.gov 60 Request for Information on Alternative Methods of Determining Efficiency Issued April 8, 2011 DOE seeks comment and data: • Current procedures used by industry to rate lowvolume, custom built commercial equipment; • Current applications of DOE’s AEDM/ARM procedures; • Products to which AEDM/ARM should apply; • Data to demonstrate ability of AEDM/ARM to estimate energy efficiency/consumption; and • Procedures governing substantiation and verification of AEDMs and ARMs. 

## Back Up Slides Certification, Compliance & Enforcement 

## New InitiativesBuilding Technologies Program eere.energy.gov 61 

## Back Up Slides Certification, Compliance & Enforcement

Notice of Proposed Rulemaking on the Compliance Date for Certification Provisions Applicable to Certain Types of Commercial Equipment Issued April 12, 2011 DOE seeks comment and data: • Proposed a tentative 18 - month compliance date extension for the certification provisions for commercial refrigeration equipment; commercial heating, ventilating, air- conditioning (HVAC) equipment; commercial water- heating equipment; walk- in coolers; walk- in freezers; and automatic commercial ice - making equipment; • Considering extending the compliance date for other commercial equipment based on comments and data; and • Considering longer/shorter date extension based on comments and data. 

## New Initiatives (cont.)Building Technologies Program eere.energy.gov 62 

## Back Up Slides Certification, Compliance & Enforcement

Submit a Question: • DOE Test Procedure Website: http://www1.eere.energy.gov/guidance/default.aspx?pid=2&spid=1 • Ashley Armstrong: Ashley.Armstrong@EE.Doe.Gov Request a Test Procedure Waiver: • DOE’s regulations allow manufacturers to apply for a waiver when a manufacturer determines that a given basic model contains one or more design features that prevent testing in accordance with DOE’s test procedure. • Email: AS_Waiver_Requests@ee.doe.gov File a Complaint: Email: energyefficiencyenforcement@hq.doe.gov. The Office of Enforcement will protect the identity of complainants to the maximum extent permitted by law. DOE’s Certification, Compliance, and Enforcement Website: http://www1.eere.energy.gov/buildings/appliance_standards/certification_e nforcement.html DOE’s Online Certification System: https://www.regulations.doe.gov/ccms/ Enforcement Information: http://gc.doe.gov/energy_efficiency_enforcement.htm 

## Questions & InformationBuilding Technologies Program eere.energy.gov 63 

## Backup Slides Interpretation of Calculation of Energy Consumption Rate

for i=1 to 3: Power input during period i (kWh) Energy Use Rate (kWh/100 lb ice) = Mass of ice collected in period i (lb of ice) i 

### • DOE believes ASHRAE Standard 29 - 2009 directs that the energy consumption rate be calculated for each of the three periods specified in the test method as the power consumption for that period divided by the mass of ice collected in that period, as shown below.

3 i 1 Power input during period i (kWh) Mass of ice collected in period i (lb of ice) Energy Use Rate (kWh /100 lb ice) 100 3 =       = × 

## ∑Building Technologies Program eere.energy.gov 64 

## Requests for Comment in TP NOPR Item 1 - DOE requests comment on its determination that the proposed test procedure amendments will not affect the measured energy or water consumption of automatic commercial ice makers that are currently covered under energy conservation standards. DOE also requests comment on the proposal that the use of the amended test procedure be required upon the effective date of any test procedure final rule, 30 days after publication in the Federal Register. Item 2 - DOE requests comment on updating the referenced industry test procedures to the most current versions. Item 3 - DOE requests comment on expanding the capacity range from 50 to 2,500 pounds of ice per 24 hours to 50 to 4,000 pounds of ice per 24 hours. Item 4 - DOE requests comment on providing test methods for continuous type ice makers. Item 5 - DOE requests comment on the proposed method to normalize energy and condenser water consumption to 32 ° F water with no water content for continuous type ice makers. Item 6 - DOE requests comment on the proposal to require testing of all remote condensing ice makers with a dedicated remote condensing unit and reporting of ice - making mechanism, compressor, and condenser energy use. Item 7 - DOE requests comment on the proposal to allow for optional test procedure for modulating capacity automatic commercial ice makers. Specifically, DOE requests comment on the weighting of the energy consumption at the minimum and maximum capacity settings. Item 8 - DOE requests comment on its proposal to incorporate AHRI Standard 810- 2007, with reference to ASHRAE Standard 29 - 2009 as the method of test, without specification or clarification of the calculation for energy consumption rate.Building Technologies Program eere.energy.gov 65 

## Requests for Comment in TP NOPR Item 9 - DOE requests comment on its determination that an additional test procedure to quantify auxiliary energy use during non - ice - making periods is not justified. Item 10 - DOE requests comments or data related to the impact of storage bin effectiveness on the energy and water consumption of automatic commercial ice makers. Specifically, DOE requests comment on the appropriate test method and metric for storage bin effectiveness and the burden associated with adopting such a test method. Item 11 - DOE requests comment on not including potable water use in making ice. Item 12 - DOE requests additional data that would support evaluation of the need for a standardized water hardness test. Item 13 - DOE requests comment on testing units at the highest water consumption purge setting. Specifically, DOE requests comment on the difference in energy and water consumption when tested at the maximum purge setting versus as specified by the manufacturer. Item 14 - DOE seeks comment on its estimated additional cost of testing due to the new requirements for testing presented in this NOPR. Specifically, DOE seeks comment on the impacts of the additional cost of testing on small manufacturers. Item 15 - DOE seeks comment on its reasoning that the proposed test procedure changes would not have a significant impact on a substantial number of small entities.Building Technologies Program eere.energy.gov 66 

## Additional Requests for Comment

Additional Item A - DOE requests comment on the proposed definitions for batch type and continuous type ice maker. Additional Item B – DOE requests comment on its proposal to test all batch type ice makers using the batch type test method.