Energy Conservation Program: Test Procedure for Dedicated-Purpose Pool Pumps

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Federal Register › Vol. 81 › 81 FR 64580

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DEPARTMENT OF ENERGY 10 CFR Parts 429 and 431 [Docket Number EERE-2016-BT-TP-0002] RIN 1904-AD66 Energy Conservation Program: Test Procedure for Dedicated-Purpose Pool Pumps AGENCY:

Office of Energy Efficiency and Renewable Energy, Department of Energy.

ACTION:

Notice of proposed rulemaking and announcement of public meeting.

SUMMARY:

The U.S. Department of Energy (DOE) proposes to establish new definitions, a new test procedure for dedicated-purpose pool pumps, new sampling and rating requirements, and new enforcement provisions for such equipment. Specifically, DOE proposes a test procedure for measuring the weighted energy factor (WEF) for certain varieties of dedicated-purpose pool pumps. The proposed test method incorporates by reference certain sections of the industry test standard Hydraulic Institute (HI) 40.6-2014, “Methods for Rotodynamic Pump Efficiency Testing.” The proposed definitions, test procedures, certification requirements, enforcement testing procedures, and labeling provisions are based on the recommendations of the dedicated-purpose pool pump (DPPP) Working Group, which was established under the Appliance Standards Rulemaking Federal Advisory Committee (ASRAC).

DATES:

DOE will hold a public meeting on Monday, September 26, 2016 from 10:00 a.m. to 2:00 p.m., in Washington, DC. The meeting will also be broadcast as a webinar. See section V, “Public Participation,” for webinar registration information, participant instructions, and information about the capabilities available to webinar participants.

DOE will accept comments, data, and information regarding this notice of proposed rulemaking (NOPR) before and after the public meeting, but no later than November 21, 2016. See section V, “Public Participation,” for details.

ADDRESSES:

The public meeting will be held at the U.S. Department of Energy, Forrestal Building, Room 4A-104, 1000 Independence Avenue SW., Washington, DC 20585

ants.

ADDRESSES:

The public meeting will be held at the U.S. Department of Energy, Forrestal Building, Room 4A-104, 1000 Independence Avenue SW., Washington, DC 20585. To attend, please notify the Appliance and Equipment Standards staff at (202) 586-6636 or Appliance_Standards_Public_Meetings@ee.doe.gov .

Any comments submitted must identify the Test Procedure NOPR for dedicated-purpose pool pumps, and provide docket number EERE-2016-BT-TP-0002 and/or regulatory information number (RIN) number 1904-AD66. Comments may be submitted using any of the following methods:

(1) Federal eRulemaking Portal: www.regulations.gov . Follow the instructions for submitting comments.

(2) Email: DPPP2016TP0002@ee.doe.gov . Include the docket number and/or RIN in the subject line of the message.

(3) Mail: Appliance and Equipment Standards Program, U.S. Department of Energy, Building Technologies Office, Mailstop EE-5B, 1000 Independence Avenue SW., Washington, DC 20585-0121. If possible, please submit all items on a compact disc (CD), in which case it is not necessary to include printed copies.

(4) Hand Delivery/Courier: Appliance and Equipment Standards Program, U.S. Department of Energy, Building Technologies Office, 950 L'Enfant Plaza SW., 6th Floor, Washington, DC 20024. Telephone: (202) 586-6636. If possible, please submit all items on a CD, in which case it is not necessary to include printed copies.

For detailed instructions on submitting comments and additional information on the rulemaking process, see section V of this document (“Public Participation”).

essary to include printed copies.

For detailed instructions on submitting comments and additional information on the rulemaking process, see section V of this document (“Public Participation”).

Docket: The docket, which includes Federal Register notices, public meeting attendee lists and transcripts, comments, and other supporting documents/materials, is available for review at regulations.gov. All documents in the docket are listed in the regulations.gov index. However, some documents listed in the index, such as those containing information that is exempt from public disclosure, may not be publicly available.

A link to the docket Web page can be found at: https://www1.eere.energy.gov/buildings/appliance_standards/standards.aspx?productid=67 . This Web page will contain a link to the docket for this document on the regulations.gov site. The regulations.gov Web page will contain simple instructions on how to access all documents, including public comments, in the docket. See section V for information on how to submit comments through regulations.gov.

FOR FURTHER INFORMATION CONTACT:

Ms. Ashley Armstrong, U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office, EE-5B, 1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone: (202) 586-6590. Email: ashley.armstrong@ee.doe.gov .

Johanna Jochum, U.S. Department of Energy, Office of the General Counsel, GC-33, 1000 Independence Avenue SW., Washington, DC 20585-0121. Telephone: (202) 287-6307. Email: Johanna.Jochum@ee.doe.gov .

For further information on how to submit a comment, review other public comments and the docket, or participate in the public meeting, contact the Appliance and Equipment Standards Program staff at (202) 586-6636 or by email: Appliance_Standards_Public_Meetings@ee.doe.gov .

SUPPLEMENTARY INFORMATION:

DOE proposes to update the incorporation by reference or newly incorporate by reference the following industry standards into 10 CFR part 431:

eview other public comments and the docket, or participate in the public meeting, contact the Appliance and Equipment Standards Program staff at (202) 586-6636 or by email: Appliance_Standards_Public_Meetings@ee.doe.gov .

SUPPLEMENTARY INFORMATION:

DOE proposes to update the incorporation by reference or newly incorporate by reference the following industry standards into 10 CFR part 431:

(1) Hydraulic Institute (HI) 40.6-2014, (“HI 40.6-2014”) “Methods for Rotodynamic Pump Efficiency Testing,” except for section 40.6.4.1, “Vertically suspended pumps”; section 40.6.4.2, “Submersible pumps”; section 40.6.5.3, “Test report”; section 40.6.5.5.2, “Speed of rotation during testing”; section 40.6.6.1, “Translation of test results to rated speed of rotation”; Appendix A, section A.7, “Testing at temperatures exceeding 30 °C (86 °F)”; and Appendix B, “Reporting of test results (normative)” copyright 2014.

Copies of HI 40.6-2014 can be obtained from: the Hydraulic Institute at 6 Campus Drive, First Floor North, Parsippany, NJ 07054-4406, (973) 267-9700, or by visiting www.pumps.org .

(2) UL 1081, (“ANSI/UL 1081-2014”), “Standard for Swimming Pool Pumps, Filters, and Chlorinators,” 6th Edition, January 29, 2008, including revisions through March 18, 2014.

Copies of American National Standards Institute (ANSI)/UL 1081-2014 can be obtained from: UL, 333 Pfingsten Road, Northbrook, IL 60062, (847) 272-8800, or by visiting http://ul.com .

7-9700, or by visiting www.pumps.org .

(2) UL 1081, (“ANSI/UL 1081-2014”), “Standard for Swimming Pool Pumps, Filters, and Chlorinators,” 6th Edition, January 29, 2008, including revisions through March 18, 2014.

Copies of American National Standards Institute (ANSI)/UL 1081-2014 can be obtained from: UL, 333 Pfingsten Road, Northbrook, IL 60062, (847) 272-8800, or by visiting http://ul.com .

(3) National Electrical Manufacturers Association (NEMA) MG-1 2014, “Motors and Generators,” 2014, section 1.19, “Polyphase Motors”; section 10.34, “Basis of Horsepower Rating”; section 10.62, “Horsepower, Speed, and Voltage Ratings”; 12.30, “Test Methods”; section 12.35, “Locked-Rotor Current of 3-Phase 60-Hz Small and Medium Squirrel-Cage Induction Motors Rated at 230 Volts”; section 12.37, “Torque Characteristics of Polyphase Small Motors”; 12.38, “Locked-Rotor Torque of Single-Speed Polyphase Squirrel-Cage Medium Motors with Continuous Ratings”; section 12.39, “Breakdown Torque of Single-speed Polyphase Squirrel-Cage Medium Motors with Continuous Ratings”; and

Copies of NEMA MG-1-2014 can be obtained from: NEMA, 1300 North 17th Street, Suite 900, Rosslyn, VA 22209, (703) 841-3200, or by visiting www.nema.org .

(4) NSF International (NSF)/ANSI Standard 50-2015, (“NSF/ANSI 50-2015”), “Equipment for Swimming Pools, Spas, hot Tubs and Other Recreational Water Facilities,” approved January 26, 2015, section C.3, “self-priming capability,” of Annex C, “Test methods for the evaluation of centrifugal pumps.”

Copies of NSF/ANSI 50-2015 can be obtained from: NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105, (743) 769-8010, or by visiting www.nsf.org .

Also, this material is available for inspection at U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Office, Sixth Floor, 950 L'Enfant Plaza, SW., Washington, DC 20024, (202) 586-6636, or go to www1.eere.energy.gov/buildings/appliance_standards/

International, 789 N. Dixboro Road, Ann Arbor, MI 48105, (743) 769-8010, or by visiting www.nsf.org .

See section IV.N for additional information on these standards.

Table of Contents

I. Authority and Background A. Authority B. Background II. Synopsis of the Notice of Proposed Rulemaking III. Discussion A. Definitions 1. Existing Pump Definitions 2. Definition of Dedicated-Purpose Pool Pump 3. Pool Filter Pumps a. Definition of a Basket Strainer and Filtration Accessories b. Self-Priming and Non-Self-Priming Pool Filter Pumps c. Integral Cartridge-Filter and Integral Sand-Filter Pool Pumps 4. Other Varieties of Dedicated-Purpose Pool Pumps a. Waterfall Pumps b. Pressure Cleaner Booster Pumps 5. Storable and Rigid Electric Spa Pumps 6. Applicability of Test Procedure Based on Pump Configuration 7. Definitions Related to Dedicated-Purpose Pool Pump Speed Configurations and Controls 8. Basic Model B. Rating Metric 1. Review of Current DPPP Regulatory and Voluntary Programs 2. Proposed Metric: Weighted Energy Factor C. Test Methods for Different DPPP Categories and Configurations 1. Self-Priming and Non-Self-Priming Pool Filter Pumps a. Single-speed Pool Filter Pumps b. Two-Speed Pool Filter Pumps c. Variable-Speed and Multi-Speed Pool Filter Pumps d. Weighting Factor for Various Load Points e. Applicability of Two-Speed, Multi-Speed, and Variable-Speed Pool Filter Pump Test Methods 2. Waterfall Pumps 3. Pressure Cleaner Booster Pumps 4. Summary D. Determination of Pump Performance 1. Incorporation by Reference of HI 40.6-2014 2. Exceptions, Modifications and Additions to HI 40.6-2014 a. Applicability and Clarification of Certain Sections of HI 40.6-2014 b. Calculation of Hydraulic Horsepower c

bility of Two-Speed, Multi-Speed, and Variable-Speed Pool Filter Pump Test Methods 2. Waterfall Pumps 3. Pressure Cleaner Booster Pumps 4. Summary D. Determination of Pump Performance 1. Incorporation by Reference of HI 40.6-2014 2. Exceptions, Modifications and Additions to HI 40.6-2014 a. Applicability and Clarification of Certain Sections of HI 40.6-2014 b. Calculation of Hydraulic Horsepower c. Data Collection and Determination of Stabilization d. Test Tolerances e. Power Supply Characteristics f. Measurement Equipment for Testing g. Calculation and Rounding Modifications and Additions E. Additional Test Methods 1. Determination of DPPP Size 2. Determination of Self-Priming Capability 3. Determination of Maximum Head F. Representations of Energy Use and Energy Efficiency G. Labeling Requirements H. Replacement DPPP Motors I. Certification and Enforcement Provisions for Dedicated-Purpose Pool Pumps 1. Sampling Plan 2. Certification Requirements 3. Enforcement Provisions IV. Procedural Issues and Regulatory Review A. Review Under Executive Order 12866 B. Review Under the Regulatory Flexibility Act 1. Burden of Conducting the Proposed DOE DPPP Test Procedure a. Estimated Equipment Costs for Testing Dedicated-Purpose Pool Pumps b. Labor Associated With Testing Dedicated-Purpose Pool Pumps c. Estimated Testing Cost per Manufacturer 2. Review of DPPP Manufacturers 3. Summary C. Review Under the Paperwork Reduction Act of 1995 D. Review Under the National Environmental Policy Act of 1969 E. Review Under Executive Order 13132 F. Review Under Executive Order 12988 G. Review Under the Unfunded Mandates Reform Act of 1995 H. Review Under the Treasury and General Government Appropriations Act, 1999 I. Review Under Executive Order 12630 J. Review Under Treasury and General Government Appropriations Act, 2001 K. Review Under Executive Order 13211 L. Review Under Section 32 of the Federal Energy Administration Act of 1974 M. Congressional Notification N. Materials Incorporated by Reference V. Public Participation A

995 H. Review Under the Treasury and General Government Appropriations Act, 1999 I. Review Under Executive Order 12630 J. Review Under Treasury and General Government Appropriations Act, 2001 K. Review Under Executive Order 13211 L. Review Under Section 32 of the Federal Energy Administration Act of 1974 M. Congressional Notification N. Materials Incorporated by Reference V. Public Participation A. Attendance at Public Meeting B. Procedure for Submitting Prepared General Statements for Distribution C. Conduct of Public Meeting D. Submission of Comments E. Issues on Which DOE Seeks Comment VI. Approval of the Office of the Secretary I. Authority and Background

Pumps are included in the list of “covered equipment” for which the U.S. Department of Energy (DOE) is authorized to establish and amend energy conservation standards (ECSs) and test procedures (TPs). (42 U.S.C. 6311(1)(A)) Dedicated-purpose pool pumps (DPPP), which are the subject of this rulemaking, are a subset of pumps and, thus, DOE is authorized to establish test procedures and energy conservation standards for them. Recently, DOE published in the Federal Register two final rules establishing new energy conservation standards and a test procedure for commercial and industrial pumps. 81 FR 4368 (Jan. 26, 2016) and 81 FR 4086 (January 25, 2016), respectively. However, dedicated-purpose pool pumps were specifically excluded from those final rules because, based on recommendations of the industry and DOE's own analysis, DOE determined that dedicated-purpose pool pumps have a unique application and equipment characteristics that merit a separate analysis. As a result, there currently are no Federal energy conservation standards or a test procedure for dedicated-purpose pool pumps. The following sections discuss DOE's authority to establish a test procedure for dedicated-purpose pool pumps and relevant background information regarding DOE's consideration of establishing Federal regulations for this equipment.

tics that merit a separate analysis. As a result, there currently are no Federal energy conservation standards or a test procedure for dedicated-purpose pool pumps. The following sections discuss DOE's authority to establish a test procedure for dedicated-purpose pool pumps and relevant background information regarding DOE's consideration of establishing Federal regulations for this equipment.

A. Authority

The Energy Policy and Conservation Act of 1975 (EPCA), Public Law 94-163, as amended by Public Law 95-619, Title IV, Sec. 441(a), established the Energy Conservation Program for Certain Industrial Equipment under Title III, Part C (42 U.S.C. 6311-6317, as codified). 1 2 “Pumps” are listed as a type of industrial equipment covered by EPCA, although EPCA does not define the term “pump.” (42 U.S.C. 6311(1)(A)) To address this issue, DOE defined “pump” in a test procedure final rule (January 2016 general pumps TP final rule) as equipment designed to move liquids (which may include entrained gases, free solids, and totally dissolved solids) by physical or mechanical action

1 For editorial reasons, upon codification in the U.S. Code, Part C was re-designated Part A-1.

2 All references to EPCA in this document refer to the statute as amended through the Energy Efficiency Improvement Act of 2015, Public Law 114-11 (April 30, 2015).

Under EPCA, the energy conservation program consists essentially of four parts: (1) Testing, (2) labeling, (3) Federal energy conservation standards, and (4) certification and enforcement procedures. The testing requirements consist of test procedures that manufacturers of covered equipment must use as the basis for (1) certifying to DOE that their equipment complies with the applicable energy conservation standards adopted under EPCA (42 U.S.C. 6295(s) and 6316(a)(1)), and (2) making representations about the energy consumption of that equipment. (42 U.S.C

fication and enforcement procedures. The testing requirements consist of test procedures that manufacturers of covered equipment must use as the basis for (1) certifying to DOE that their equipment complies with the applicable energy conservation standards adopted under EPCA (42 U.S.C. 6295(s) and 6316(a)(1)), and (2) making representations about the energy consumption of that equipment. (42 U.S.C. 6314(d)) Similarly, DOE must use these test procedures to determine whether the equipment complies with any relevant standards promulgated under EPCA.

EPCA sets forth the criteria and procedures DOE must follow when prescribing or amending test procedures for covered equipment. EPCA provides that any test procedures prescribed or amended under this section shall be reasonably designed to produce test results that measure energy efficiency, energy use or estimated annual operating cost of a covered equipment during a representative average use cycle or period of use, and shall not be unduly burdensome to conduct. (42 U.S.C. 6314(a)(2))

In addition, before prescribing any final test procedures, DOE must publish proposed test procedures and offer the public an opportunity to present oral and written comments on them. (42 U.S.C. 6314(b)(1)-(2))

DOE is authorized to prescribe energy conservation standards and corresponding test procedures for covered equipment such as dedicated-purpose pool pumps. Although DOE is currently evaluating whether to establish energy conservation standards for dedicated-purpose pool pumps (Docket No. EERE-2015-BT-STD-0008), DOE must first establish a test procedure that measures the energy use, energy efficiency, or estimated operating costs of a given type of covered equipment before establishing any new energy conservation standards for that equipment. See, generally, 42 U.S.C. 6295(o) and 6316(a)

whether to establish energy conservation standards for dedicated-purpose pool pumps (Docket No. EERE-2015-BT-STD-0008), DOE must first establish a test procedure that measures the energy use, energy efficiency, or estimated operating costs of a given type of covered equipment before establishing any new energy conservation standards for that equipment. See, generally, 42 U.S.C. 6295(o) and 6316(a).

To fulfill these requirements, in this NOPR, DOE proposes to establish a test procedure for dedicated-purpose pool pumps in advance of the finalization of the ongoing ECS rulemaking for this equipment. ( See Docket No. EERE-2015-BT-STD-0008.) The test procedure proposed in this NOPR includes the methods necessary to: (1) Measure the performance of the covered equipment, (2) use the measured results to calculate the weighted energy factor (WEF) to represent the energy consumption of the dedicated-purpose pool pump, inclusive of a motor and any controls, and (3) determine the minimum test sample ( i.e., number of units) and permitted range of represented values. In this NOPR, DOE also proposes to set the scope of those dedicated-purpose pool pumps to which the proposed test methods would apply.

If adopted, manufacturers would be required to use the DPPP test procedure and metric when making representations regarding the WEF (section III.B.2 for more information) of covered equipment beginning 180 days after the publication date of any DPPP TP final rule establishing such procedures. All representations of energy factor (EF), 3 overall (wire-to-water) efficiency, driver power input, nominal motor horsepower, 4 total horsepower, service factor, pump power output (hydraulic horsepower), and true power factor (PF) must be based on testing in accordance with the new DPPP test procedure beginning 180 days after the publication date of a final rule in the Federal Register . See 42 U.S.C. 6314(d)

ations of energy factor (EF), 3 overall (wire-to-water) efficiency, driver power input, nominal motor horsepower, 4 total horsepower, service factor, pump power output (hydraulic horsepower), and true power factor (PF) must be based on testing in accordance with the new DPPP test procedure beginning 180 days after the publication date of a final rule in the Federal Register . See 42 U.S.C. 6314(d). However, DOE notes that certification of compliance with any energy conservation standards for dedicated-purpose pool pumps would not be required until the compliance date of any final rule establishing energy conservation standards applicable to this equipment. ( See Docket No. EERE-2015-BT-STD-0008.)

3 Energy Factor (EF) is a metric that is common in the DPPP industry and which describes the quantity of water provided by a dedicated-purpose pool pump over the input power required to pump that amount of water in units of gallons per watt-hour (gal/Wh). EF is described in more detail in section III.B and the relevant test methods for determining EF are described in section III.C and III.F.

4 In this NOPR, DOE proposes specific test methods and metrics applicable to nominal motor horsepower, total horsepower, service factor, and hydraulic horsepower of dedicated-purpose pool pumps. See section III.E.1 for a discussion of the different horsepower metrics applicable to dedicated-purpose pool pumps and the proposed testing and labeling requirements applicable to these metrics.

B. Background

ling requirements applicable to these metrics.

B. Background

Dedicated-purpose pool pumps are a style of pump for which DOE has not yet established a test procedure or energy conservation standards. Although DOE recently completed final rules establishing energy conservation standards (81 FR 4368 (Jan. 26, 2016); January 2016 general pumps ECS final rule) and a test procedure (81 FR 4086 ((Jan. 25, 2016); January 2016 general pumps TP final rule) for certain categories and configurations of pumps, DOE declined in those rules to establish any requirements applicable to dedicated-purpose pool pumps because of their different equipment characteristics and applications. 81 FR 4086, 4094 (Jan. 25, 2016). Specifically, in the January 2016 general pumps TP and ECS final rules, DOE established relevant definitions, test procedures, and energy conservation standards for end suction close-coupled (ESCC); end suction frame mounted/own bearings (ESFM); in-line (IL); radially split, multi-stage, vertical, in-line diffuser casing (RSV); and submersible turbine (ST) pumps with the following characteristics:

• 25 gallons per minute (gpm) and greater (at best efficiency point (BEP) at full impeller diameter);

• 459 feet of head maximum (at BEP at full impeller diameter and the number of stages specified for testing);

• design temperature range from 14 to 248 °F;

• designed to operate with either (1) a 2- or 4-pole induction motor, or (2) a non-induction motor with a speed of rotation operating range that includes speeds of rotation between 2,880 and 4,320 revolutions per minute (rpm) and/or 1,440 and 2,160 rpm, and in either case, the driver and impeller must rotate at the same speed;

• 6-inch or smaller bowl diameter for ST pumps (HI VS0);

• a clean water pump; 5 and

case, the driver and impeller must rotate at the same speed;

• 6-inch or smaller bowl diameter for ST pumps (HI VS0);

• a clean water pump; 5 and

5 In the January 2016 general pumps TP final rule, DOE defined “clean water pump” as a pump that is designed for use in pumping water with a maximum non-absorbent free solid content of 0.016 pounds per cubic foot, and with a maximum dissolved solid content of 3.1 pounds per cubic foot, provided that the total gas content of the water does not exceed the saturation volume, and disregarding any additives necessary to prevent the water from freezing at a minimum of 14 °F. 80 FR 4086, 4100 (Jan. 25, 2016).

• not a fire pump, 6 a self-priming pump, 7 a prime-assist pump, 8 a magnet driven pump, 9 a pump designed to be used in a nuclear facility subject to 10 CFR part 50, “Domestic Licensing of Production and Utilization Facilities”; or a pump meeting the design and construction requirements set forth in any relevant Military Specifications. 10

6 In the January 2016 general pumps TP final rule, DOE defined “fire pump” as a pump that is compliant with NFPA 20-2016, “Standard for the Installation of Stationary Pumps for Fire Protection,” and is either: (1) UL listed under ANSI/UL 448-2013, “Standard for Safety Centrifugal Stationary Pumps for Fire-Protection Service,” or (2) FM Global (FM) approved under the January 2015 edition of FM Class Number 1319, “Approval Standard for Centrifugal Fire Pumps (Horizontal, End Suction Type).” 80 FR 4086, 4101 (Jan. 25, 2016).

7 In the January 2016 general pumps TP final rule, DOE defined “self-priming pump” as a pump that is (1) is designed to lift liquid that originates below the centerline of the pump inlet; (2) contains at least one internal recirculation passage; and (3) requires a manual filling of the pump casing prior to initial start-up, but is able to re-prime after the initial start-up without the use of external vacuum sources, manual filling, or a foot valve. 80 FR 4086, 4147 (Jan. 25, 2016)

a pump that is (1) is designed to lift liquid that originates below the centerline of the pump inlet; (2) contains at least one internal recirculation passage; and (3) requires a manual filling of the pump casing prior to initial start-up, but is able to re-prime after the initial start-up without the use of external vacuum sources, manual filling, or a foot valve. 80 FR 4086, 4147 (Jan. 25, 2016). This NOPR proposes to modify that definition. (See section III.A.3.b.)

8 In the January 2016 general pumps TP final rule, DOE defined “prime-assist pump” as a pump that (1) is designed to lift liquid that originates below the centerline of the pump inlet; (2) requires no manual intervention to prime or re-prime from a dry-start condition; and (3) includes a device, such as a vacuum pump or air compressor and venturi eductor, to remove air from the suction line in order to automatically perform the prime or re-prime function at any point during the pump's operating cycle. 80 FR 4086, 4147 (Jan. 25, 2016).

9 In the January 2016 general pumps TP final rule, DOE defined “magnet driven pump” as a pump in which the bare pump is isolated from the motor via a containment shell and torque is transmitted from the motor to the bare pump via magnetic force. The motor shaft is not physically coupled to the impeller or impeller shaft. 80 FR 4086, 4147 (Jan. 25, 2016).

10 MIL-P-17639F, “Pumps, Centrifugal, Miscellaneous Service, Naval Shipboard Use” (as amended); MIL-P-17881D, “Pumps, Centrifugal, Boiler Feed, (Multi-Stage)” (as amended); MIL-P-17840C, “Pumps, Centrifugal, Close-Coupled, Navy Standard (For Surface Ship Application)” (as amended); MIL-P-18682D, “Pump, Centrifugal, Main Condenser Circulating, Naval Shipboard” (as amended); and MIL-P-18472G, “Pumps, Centrifugal, Condensate, Feed Booster, Waste Heat Boiler, And Distilling Plant” (as amended). Military specifications and standards are available for review at http://everyspec.com/MIL-SPECS

, Centrifugal, Close-Coupled, Navy Standard (For Surface Ship Application)” (as amended); MIL-P-18682D, “Pump, Centrifugal, Main Condenser Circulating, Naval Shipboard” (as amended); and MIL-P-18472G, “Pumps, Centrifugal, Condensate, Feed Booster, Waste Heat Boiler, And Distilling Plant” (as amended). Military specifications and standards are available for review at http://everyspec.com/MIL-SPECS .

The pumps for which standards and a test procedure were established in the January 2016 general pumps TP and ECS final rules will be hereafter collectively referred to as “general pumps” in this DPPP TP NOPR.

The January 2016 general pumps TP and ECS final rules were based on the recommendations of the Commercial and Industrial Pump (CIP) Working Group established through the Appliance Standards Rulemaking Federal Advisory Committee (ASRAC) to negotiate standards and a test procedure for general pumps. (Docket No. EERE-2013-BT-NOC-0039) 11 The CIP Working Group concluded its negotiations on June 19, 2014, with a consensus vote to approve a term sheet containing recommendations to DOE on appropriate standard levels for general pumps, as well as recommendations addressing issues related to the metric and test procedure for general pumps (“CIP Working Group recommendations”). 12

11 Information on the ASRAC, the CIP Working Group, and meeting dates is available at http://energy.gov/eere/buildings/appliance-standards-and-rulemaking-federal-advisory-committee .

12 The term sheet containing the Working Group recommendations is available in the CIP Working Group's docket. (Docket No. EERE-2013-BT-NOC-0039, No. 92)

eral-advisory-committee .

12 The term sheet containing the Working Group recommendations is available in the CIP Working Group's docket. (Docket No. EERE-2013-BT-NOC-0039, No. 92)

In the CIP Working Group recommendations, the Working Group formally recommended DOE initiate a separate rulemaking for dedicated-purpose pool pumps. (Docket No. EERE-2013-BT-NOC-0039, No. 92, Recommendation #5A at p. 2) Therefore, in the January 2016 general pumps TP final rule, DOE explicitly excluded dedicated-purpose pool pumps from the categories of pumps to which the test procedure and standards applied. 81 FR 4086, 4098-99 (Jan. 25, 2016). DOE also refrained from adopting a definition for dedicated-purpose pool pump and stated that DOE would define the term in the separate rule specifically addressing such equipment. Id.

To begin the separate rulemaking for dedicated-purpose pool pumps referenced in the January 2016 general pumps TP final rule (81 FR 4086, 4098-99 (Jan. 25, 2016)) and recommended by the CIP Working Group (Docket No. EERE-2013-BT-NOC-0039, No. 92, Recommendation #5A at p. 2), on May 8, 2015, DOE issued a Request for Information (RFI), hereafter referred to as the “May 2015 DPPP RFI.” The May 2015 DPPP RFI presented information and requested public comment about any definitions, metrics, test procedures, equipment characteristics, and typical applications relevant to DPPP equipment. 80 FR 26475. In response to the May 2015 DPPP RFI, DOE received six written comments. The commenters included the Association of Pool and Spa Professionals (APSP); Pacific Gas and Electric Company (PG&E), Southern California Gas Company (SCG), Southern California Edison (SCE), and San Diego Gas and Electric Company (SDG&E), collectively referred to herein as the California Investor-Owned Utilities (CA IOUs); the Hydraulic Institute (HI); Ms. Newman; the National Electrical Manufacturers Association (NEMA); and River City Pool and Spa (River City)

als (APSP); Pacific Gas and Electric Company (PG&E), Southern California Gas Company (SCG), Southern California Edison (SCE), and San Diego Gas and Electric Company (SDG&E), collectively referred to herein as the California Investor-Owned Utilities (CA IOUs); the Hydraulic Institute (HI); Ms. Newman; the National Electrical Manufacturers Association (NEMA); and River City Pool and Spa (River City).

In response to the May 2015 DPPP RFI, APSP, HI, and CA IOUs all encouraged DOE to pursue a negotiated rulemaking for dedicated-purpose pool pumps. (Docket. No. EERE-2015-BT-STD-0008, APSP, No. 10 at p. 2; HI, No. 8 at p. 2; CA IOUs, No. 11 at p. 2) Consistent with feedback from these interested parties, DOE began a process through the ASRAC to discuss conducting a negotiated rulemaking to develop standards and a test procedure for dedicated-purpose pool pumps as an alternative to the traditional notice and comment route that DOE had already begun. (Docket No. EERE-2015-BT-STD-0008) On August 25, 2015, DOE published a notice of intent to establish a negotiated rulemaking working group for dedicated-purpose pool pumps (as previously defined, the “DPPP Working Group”) to negotiate, if possible, Federal standards for the energy efficiency of dedicated-purpose pool pumps and to announce the first public meeting. 80 FR 51483. The initial ASRAC charter allowed for 3 months of working group meetings to establish the scope, metric, definitions, and test procedure for dedicated-purpose pool pumps and reserved any discussion of standards to a later set of meetings once analysis had been conducted based on the framework established under the original charter. (Docket No. EERE-2013-BT-NOC-0005, No. 56 at p. 27) On October 15, 2015, DOE published a notice of public open meetings of the DPPP Working Group. 80 FR 61996. The members of the Working Group were selected to ensure a broad and balanced array of interested parties and expertise, including representatives from efficiency advocacy organizations and manufacturers

ablished under the original charter. (Docket No. EERE-2013-BT-NOC-0005, No. 56 at p. 27) On October 15, 2015, DOE published a notice of public open meetings of the DPPP Working Group. 80 FR 61996. The members of the Working Group were selected to ensure a broad and balanced array of interested parties and expertise, including representatives from efficiency advocacy organizations and manufacturers. Additionally, one member from ASRAC and one DOE representative were part of the Working Group. Table I.1 lists the 13 members of the DPPP Working Group and their affiliations.

Table I.1—ASRAC DPPP Working Group Members and Affiliations Member Affiliation Abbreviation John Caskey National Electrical Manufacturers Association (and ASRAC representative) NEMA John Cymbalsky U.S. Department of Energy DOE Kristin Driskell California Energy Commission CEC Scott Durfee Nidec Motor Corporation Nidec Jeff Farlow Pentair Aquatic Systems Pentair Gary Fernstrom California Investor-Owned Utilities (PG&E, SDG&E, SCG, and SCE) CA IOUs Patrizio Fumagalli Bestway USA, Inc Bestway Paul Lin Regal Beloit Corporation Regal Joanna Mauer Appliance Standards Awareness Project ASAP Ray Mirza Waterway Waterway Doug Philhower Hayward Industries, Inc Hayward Shajee Siddiqui Zodiac Pool Systems, Inc Zodiac Meg Waltner Natural Resources Defense Council NRDC The DPPP Working Group commenced negotiations at an open meeting on September 30 and October 1, 2015, and held three additional meetings to discuss scope, metrics, and the test procedure. 13 The DPPP Working Group concluded its negotiations on December 8, 2015, with a consensus vote to approve a term sheet containing recommendations to DOE on scope, metric, and the basis of the test procedure (“December 2015 DPPP Working Group recommendations”). 14 The term sheet containing these recommendations is available in the DPPP Working Group docket. (Docket No. EERE-2015-BT-STD-0008, No

e. 13 The DPPP Working Group concluded its negotiations on December 8, 2015, with a consensus vote to approve a term sheet containing recommendations to DOE on scope, metric, and the basis of the test procedure (“December 2015 DPPP Working Group recommendations”). 14 The term sheet containing these recommendations is available in the DPPP Working Group docket. (Docket No. EERE-2015-BT-STD-0008, No. 51) ASRAC subsequently voted unanimously to approve the December 2015 DPPP Working Group recommendations during a January 20, 2016, meeting. (Docket No. EERE-2015-BT-STD-0008, No. 0052)

13 Details of the negotiations sessions can be found in the public meeting transcripts that are posted to the docket for the Working Group ( www.regulations.gov/#!docketDetail;D=EERE-2015-BT-STD-0008 ).

14 The ground rules of the DPPP Working Group define consensus as no more than three negative votes. (Docket No. EERE-2015-BT-0008-0016 at p. 3) Concurrence was assumed absent overt dissent, evidenced by a negative vote. Abstention was not construed as a negative vote.

The December 2015 DPPP Working Group recommendations pertinent to the test procedure and standard metric are reflected in this NOPR. In addition to referring to the December 2015 DPPP Working Group recommendations, DOE also refers to discussions from the DPPP Working Group meetings regarding potential actions that were not formally approved. All references herein to approved recommendations include a citation to the December 2015 DPPP Working Group recommendations and are noted with the recommendation number ( e.g., Docket No. EERE-2015-BT-STD-0008, No. #, Recommendation #X at p. Y). References herein to discussions or suggestions of the DPPP Working Group not found in the December 2015 DPPP Working Group recommendations include a citation to meeting transcripts and the commenter, if applicable ( e.g., Docket No. EERE-2015-BT-STD-0008, [Organization], No. X at p. Y)

oted with the recommendation number ( e.g., Docket No. EERE-2015-BT-STD-0008, No. #, Recommendation #X at p. Y). References herein to discussions or suggestions of the DPPP Working Group not found in the December 2015 DPPP Working Group recommendations include a citation to meeting transcripts and the commenter, if applicable ( e.g., Docket No. EERE-2015-BT-STD-0008, [Organization], No. X at p. Y).

The DPPP Working Group also requested more time to discuss potential energy conservation standards for this equipment. On January 20, 2016, ASRAC met and recommended that the DPPP Working Group continue its work to develop and recommend potential energy conservation standards for this equipment. (Docket No. EERE-2013-BT-NOC-0005, No. 71 at pp. 20-52) Those meetings commenced on March 21, 2016, (81 FR 10152, 10153) and concluded on June 23, 2016, with approval of a second term sheet (June 2016 DPPP Working Group recommendations) containing Working Group recommendations related to scope, definitions, energy conservation standards—performance standards or design requirements for various styles of pumps, applicable test procedure, and labeling for dedicated-purpose pool pumps. (Docket No. EERE-2015-BT-STD-0008, No. 82) The June 2016 DPPP Working Group recommendations also contained a non-binding recommendation regarding industry training for dedicated-purpose pool pump trades. (Docket No. EERE-2015-BT-STD-0008, No. 82, Non-Binding Recommendation #1 at p. 5) The proposed definitions, DPPP test procedure, sampling provisions, enforcement requirements, and labeling requirements contained in this NOPR reflect the suggestions of the DPPP Working Group made during these meetings, as well as the recommendations contained in the both the December 2015 and June 2016 DPPP Working Group recommendations.

DOE notes that many of those who submitted comments pertaining to the 2015 RFI later became members of the DPPP Working Group

nforcement requirements, and labeling requirements contained in this NOPR reflect the suggestions of the DPPP Working Group made during these meetings, as well as the recommendations contained in the both the December 2015 and June 2016 DPPP Working Group recommendations.

DOE notes that many of those who submitted comments pertaining to the 2015 RFI later became members of the DPPP Working Group. As such, the concerns of these commenters were fully discussed as part of the meetings, and the positions of these commenters may have changed as a result of the compromises inherent in a negotiation. The proposals in this NOPR incorporate and respond to several issues and recommendations that were raised in response to the 2015 RFI. However, where an RFI commenter became a member of the DPPP Working Group, DOE does not separately address comments made by that interested party regarding issues that were later discussed or negotiated in the DPPP Working Group. As a result, no comments are addressed twice. Table I.2 lists the RFI commenters as well as whether they participated in the DPPP Working Group.

Table I.2—List of RFI Commenters Commenter DPPP working group member Association of Pool and Spa Professionals No. California Investor-Owned Utilities Yes. Hydraulics Institute No. Ms. Newman No. National Electrical Manufacturers Association Yes. River City Pool and Spa No. II. Synopsis of the Notice of Proposed Rulemaking

In this TP NOPR, DOE proposes to amend subpart Y to 10 CFR part 431 to include definitions and a test procedure applicable to dedicated-purpose pool pumps. However, DOE proposes to establish a test procedure for only a specific subset of dedicated-purpose pool pumps. Specifically, this proposed test procedure would apply only to self-priming and non-self-priming pool filter pumps, waterfall pumps, and pressure

In this NOPR, DOE proposes a new metric, the weighted energy factor (WEF), to characterize the energy performance of dedicated-purpose pool pumps within the scope of this test procedure

cedure for only a specific subset of dedicated-purpose pool pumps. Specifically, this proposed test procedure would apply only to self-priming and non-self-priming pool filter pumps, waterfall pumps, and pressure

In this NOPR, DOE proposes a new metric, the weighted energy factor (WEF), to characterize the energy performance of dedicated-purpose pool pumps within the scope of this test procedure. WEF is determined as a weighted average of water flow rate over the input power to the dedicated-purpose pool pump at different load points, depending on the variety of dedicated-purpose pool pump and the number of operating speeds with which it is distributed in commerce. The proposed DPPP test procedure contains the methods for determining WEF for self-priming and non-self-priming pool filter pumps, waterfall pumps, and pressure cleaner booster pumps. In addition, the proposed DPPP test procedure contains a test method to determine the self-priming capability of pool filter pumps to effectively differentiate self-priming and non-self-priming pool filter pumps. Finally, the proposed DPPP test procedure contains optional methods for determining the WEF for replacement DPPP motors.

DOE's proposed test method includes measurements of flow rate and input power, both of which are required to calculate WEF, as well as other quantities to effectively characterize the rated DPPP performance ( e.g., head, hydraulic output power, rotating speed). For consistent and uniform measurement of these values, DOE proposes to incorporate by reference the test methods established in HI 40.6-2014, “Methods for Rotodynamic Pump Efficiency Testing,” with certain exceptions. DOE reviewed the relevant sections of HI 40.6-2014 and determined that HI 40.6-2014, in conjunction with the additional test methods and calculations proposed in this test procedure, would produce test results that reflect the energy efficiency, energy use, or estimated operating costs of a dedicated-purpose pool pump during a representative average use cycle

ncy Testing,” with certain exceptions. DOE reviewed the relevant sections of HI 40.6-2014 and determined that HI 40.6-2014, in conjunction with the additional test methods and calculations proposed in this test procedure, would produce test results that reflect the energy efficiency, energy use, or estimated operating costs of a dedicated-purpose pool pump during a representative average use cycle. (42 U.S.C. 6314(a)(2)) DOE also reviewed the burdens associated with conducting the proposed test procedure, including HI 40.6-2014, and, based on the results of such analysis, found that the proposed test procedure would not be unduly burdensome to conduct. (42 U.S.C. 6314(a)(2)) DOE's analysis of the burdens associated with the proposed test procedure is presented in section IV.B.

This NOPR also proposes requirements regarding the sampling plan, certification requirements, and representations for covered dedicated-purpose pool pumps at subpart B of part 429 of title 10 of the Code of Federal Regulations. The sampling plan requirements are similar to those for several other types of commercial equipment and are appropriate for dedicated-purpose pool pumps based on the expected range of measurement uncertainty and manufacturing tolerances for this equipment (see section III.I.1 for more detailed information). As DOE's proposed DPPP test procedure contains methods for calculating the EF, pump overall efficiency, PF, and other relevant quantities, DOE also proposes provisions regarding allowable representations of energy consumption, energy efficiency, and other relevant metrics manufacturers may make regarding DPPP performance (section III.E).

er relevant metrics manufacturers may make regarding DPPP performance (section III.E).

Starting on the compliance date for any energy conservation standards that DOE may set for dedicated-purpose pool pumps, all dedicated-purpose pool pumps within the scope of those standards would be required certified in accordance with the amended subpart Y of part 431 and the applicable sampling requirements. DOE is also proposing that, beginning on the compliance date of any energy conservation standards that DOE may set for dedicated-purposed pool pumps, certain information be reported to DOE on an annual basis as part of a certification of compliance with those standards (section III.I.2). Similarly, all representations regarding the energy efficiency or energy use of dedicated-purpose pool pumps for which this proposed DPPP test procedure should be made by testing in accordance with the adopted DPPP test procedure 180 days after the publication date of any TP final rule establishing such procedures. (42 U.S.C. 6314(d)(1)) DOE understands that manufacturers of dedicated-purpose pool pumps likely have historical test data ( e.g., existing pump curves) that were developed with methods consistent with the DOE test procedure being proposed. As DOE understands that the proposed DPPP test procedure is based on the same testing methodology used to generate most existing pump performance information, DOE notes that it does not expect that manufacturers would need to regenerate all of the historical test data as long as the tested units remain representative of the basic model's current design and the rating remains valid under the adopted method of test for dedicated-purpose pool pumps. If the testing methods used to generate historical ratings for DPPP basic models were substantially different from those proposed in this NOPR or the manufacturer has changed the design of the basic model, the representations resulting from the historical methods would no longer be valid.

III

t design and the rating remains valid under the adopted method of test for dedicated-purpose pool pumps. If the testing methods used to generate historical ratings for DPPP basic models were substantially different from those proposed in this NOPR or the manufacturer has changed the design of the basic model, the representations resulting from the historical methods would no longer be valid.

III. Discussion

In this NOPR, DOE proposes to amend subpart Y of part 431 to add a new DPPP test procedure and related definitions, amend 10 CFR 429.60 to add a new sampling plan for this equipment, and add new enforcement provisions for dedicated-purpose pool pumps in 10 CFR 429.110 and 429.134. The proposed amendments are shown in Table III.1.

Table III.1—Summary of Proposals in This NOPR, Their Location Within the Code of Federal Regulations, and the Applicable Preamble Discussion Location Proposal Summary of additions Applicable preamble discussion 10 CFR 429.60 Test Procedure Sampling Plan and Certification Requirements Minimum number of dedicated-purpose pool pumps to be tested to rate a DPPP basic model, determination of representative values, and certification reporting requirements Section III.I. 10 CFR 429.110 & 429.134 Enforcement Provisions Method for DOE determination of compliance of DPPP basic models Section III.I. 10 CFR 431.462 Definitions Definitions pertinent to categorizing and testing of dedicated-purpose pool pumps Section III.A. 10 CFR 431.464 & Appendix B Test Procedure Instructions for determining the WEF (and other applicable performance characteristics) for applicable varieties of dedicated-purpose pool pumps and replacement DPPP motors Sections III.B, III.C, III.D, III.E, III.F, and III.G. 10 CFR 431.466 Labeling Requirements for labeling dedicated-purpose pool pumps III.G

dedicated-purpose pool pumps Section III.A. 10 CFR 431.464 & Appendix B Test Procedure Instructions for determining the WEF (and other applicable performance characteristics) for applicable varieties of dedicated-purpose pool pumps and replacement DPPP motors Sections III.B, III.C, III.D, III.E, III.F, and III.G. 10 CFR 431.466 Labeling Requirements for labeling dedicated-purpose pool pumps III.G. The following sections discuss DOE's proposals regarding (A) definitions related to the categorizing and testing of dedicated-purpose pool pumps; (B) the metric to describe the energy performance of dedicated-purpose pool pumps; (C) the test procedure for different varieties of dedicated-purpose pool pumps; (D) the specific test methods for determining pump performance that form the basis for the DOE test procedure; (E) additional test methods necessary to determine rated hydraulic horsepower, 15 other DPPP horsepower metrics, 16 and the self-priming capability of dedicated-purpose pool pumps; (F) selecting test samples and representations of energy use and energy efficiency; (G) labeling requirements for dedicated-purpose pool pumps; (H) an optional test method for replacement DPPP motors; and (I) certification and enforcement provisions for tested DPPP models.

15 Rated hydraulic horsepower refers to the hydraulic horsepower at maximum speed and full impeller diameter on the reference curve for the rated pump and is the metric DOE proposes to use to describe the “size” of dedicated-purpose pool pumps. (See section III.E.1.)

16 DOE proposes, based on the June 2016 DPPP Working Group recommendations, standardized methods for determining nominal motor horsepower, total horsepower, and service factor of a dedicated purpose pool pump to support labeling provisions. The proposed test methods are discussed in section III.E and the labeling requirements are discussed in section III.G.

pool pumps. (See section III.E.1.)

A. Definitions

As discussed in section I.B, in the January 2016 general pumps TP final rule, DOE adopted a definition at 10 CFR 431.462 for “pump” along with other pump component- and configuration-related definitions. These definitions were necessary to establish the scope of the general pump test procedure and standards and to appropriately apply the test procedure. 81 FR 4086, 4090-4104 (Jan. 25, 2016).

Although dedicated-purpose pool pumps are a style of pump, DOE declined to establish a test procedure or standards applicable to dedicated-purpose pool pumps in the January 2016 general pumps TP and ECS final rules because of their different equipment characteristics and applications. Id. at 4094 (Jan. 25, 2016) and 81 FR 4368 (Jan. 26, 2016), respectively. Therefore, in this NOPR, DOE proposes a definition for dedicated-purpose pool pump, as well as related definitions for different varieties and operating speed configurations of dedicated-purpose pool pumps. DOE also proposes definitions pertinent to categorizing and testing dedicated-purpose pool pumps in accordance with the DOE test procedure. DOE presents these definitions in the subsequent sections. In addition, DOE is proposing definitions and methods for determining for several terms related to describing “DPPP size,” including “rated hydraulic horsepower,” “dedicated-purpose pool pump nominal motor horsepower,” “dedicated-purpose pool pump service factor,” and “dedicated-purpose pool pump motor total horsepower.” These terms are discussed in detail in section III.E.1.

sequent sections. In addition, DOE is proposing definitions and methods for determining for several terms related to describing “DPPP size,” including “rated hydraulic horsepower,” “dedicated-purpose pool pump nominal motor horsepower,” “dedicated-purpose pool pump service factor,” and “dedicated-purpose pool pump motor total horsepower.” These terms are discussed in detail in section III.E.1.

1. Existing Pump Definitions

As dedicated-purpose pool pumps fall into the larger pump equipment category, prior to proposing any definitions applicable to dedicated-purpose pool pumps, it is necessary to review existing definitions related to pumps. In the January 2016 general pumps TP final rule, DOE defined a “pump” as equipment designed to move liquids which may include entrained gases, free solids, and totally dissolved solids) by physical or mechanical action and includes a bare pump and, if included by the manufacturer at the time of sale, mechanical equipment, driver, and controls. 81 FR 4086, 4090 (Jan. 25, 2016). In order to fully define the term “pump,” DOE also adopted the following definitions for the terms “bare pump,” “mechanical equipment,” “driver,” and “controls:”

• Bare pump means a pump excluding mechanical equipment, driver, and controls.

• Mechanical equipment means any component of a pump that transfers energy from a driver to the bare pump.

• Driver means the machine providing mechanical input to drive a bare pump directly or through the use of mechanical equipment. Examples include, but are not limited to, an electric motor, internal combustion engine, or gas/steam turbine.

• Control means any device that can be used to operate the driver. Examples include, but are not limited to, continuous or non-continuous controls, schedule-based controls, on/off switches, and float switches.

Id. at 4090-91. DOE notes that because dedicated-purpose pool pumps are a style of pump, these terms also apply to the definition of dedicated-purpose pool pumps and certain DPPP components

Control means any device that can be used to operate the driver. Examples include, but are not limited to, continuous or non-continuous controls, schedule-based controls, on/off switches, and float switches.

Id. at 4090-91. DOE notes that because dedicated-purpose pool pumps are a style of pump, these terms also apply to the definition of dedicated-purpose pool pumps and certain DPPP components.

In addition to defining the term “pump,” in the January 2016 general pumps TP final rule, DOE also established and defined five varieties of pump to which the test procedure and standards established in the January 2016 general pumps TP and ECS final rules, respectively, apply. These pump varieties are (1) ESCC, (2) ESFM, (3) IL, (4) RSV, and (5) ST pumps.

In order to specifically exclude dedicated-purpose pool pumps from the scope of the general pumps test Id. at 4146. DOE also defined “end suction frame mounted/own bearings (ESFM) pump” as a mechanically-coupled, dry rotor, end suction pump that has a shaft input power greater than or equal to 1-hp and less than or equal to 200-hp at BEP and full impeller diameter and that is not a dedicated-purpose pool pump. Examples include, but are not limited to, pumps within the specified horsepower range that comply with ANSI/HI nomenclature OH0 and OH1, as described in ANSI/HI 1.1-1.2-2014.

Id. at 4146. The definitions presented in the previous paragraph ensure that dedicated-purpose pool pumps cannot be classified as ESCC or ESFM, and thus are excluded from the scope of applicability of the general pumps test procedure. DOE notes that dedicated-purpose pool pumps are only constructed as end suction pumps and, thus, exclusion from the IL, RSV, and ST equipment varieties is not necessary as they are not end suction pumps.

dedicated-purpose pool pumps are only constructed as end suction pumps and, thus, exclusion from the IL, RSV, and ST equipment varieties is not necessary as they are not end suction pumps.

As dedicated-purpose pool pumps are end suction pumps, DOE believes the definition for end suction pump established in the January 2016 general pumps TP final rule also applies to dedicated-purpose pool pumps. In the January 2016 general pumps TP final rule, DOE defined “end suction pump” as a single-stage, rotodynamic pump in which the liquid enters the bare pump in a direction parallel to the impeller shaft and on the side opposite the bare pump's driver-end. The liquid is discharged through a volute in a plane perpendicular to the shaft. 81 FR 4086, 4146 (Jan. 25, 2016). DOE notes that, as it is referenced in the definition for end suction pump, the definition for rotodynamic pump 17 established at 10 CFR 431.462 in the January 2016 general pumps TP final rule also applies to dedicated-purpose pool pumps.

Id. at 4147. 17 In the January 2016 general pumps TP final rule, DOE defined rotodynamic pump as a pump in which energy is continuously imparted to the pumped fluid by means of a rotating impeller, propeller, or rotor. 81 FR 4086, 4147 (Jan. 25, 2016).

In DOE's view, the term “dry rotor pump” applies to dedicated-purpose pool pumps because, to DOE's knowledge, all dedicated-purpose pool pumps are dry rotor, as defined in the January 2016 general pumps final rule. DOE defines “dry rotor pump” as “a pump in which the motor rotor is not immersed in the pumped fluid.” 10 CFR 431.462. (Dry rotor pump is used herein in the definition of pressure cleaner booster pump (see section III.A.4.b)).

DOE requests comment on whether all dedicated-purpose pool pumps are dry rotor

d-purpose pool pumps are dry rotor, as defined in the January 2016 general pumps final rule. DOE defines “dry rotor pump” as “a pump in which the motor rotor is not immersed in the pumped fluid.” 10 CFR 431.462. (Dry rotor pump is used herein in the definition of pressure cleaner booster pump (see section III.A.4.b)).

DOE requests comment on whether all dedicated-purpose pool pumps are dry rotor.

Other definitions established or incorporated by reference in the January 2016 general pumps TP final rule that apply to dedicated-purpose pool pumps are the following: The definition of basic model (discussed further in section III.A.8), the definitions in HI 40.6-2014 relevant to testing pumps (discussed further in section III.D.1), and the definition of self-priming pump (discussed further in section III.A.3.b). While other terms may be applicable to the description of dedicated-purpose pool pumps, they are not, at this time, proposed to be referenced in any of the DPPP definitions or specifications of the DPPP test procedure.

2. Definition of Dedicated-Purpose Pool Pump

The DPPP Working Group recommended that “dedicated-purpose pool pumps” comprise the following pump varieties: Self-priming pool filter pumps, non-self-priming pool filter pumps, waterfall pumps, pressure cleaner booster pumps, integral sand-filter pool pumps, integral cartridge-filter pool pumps, storable electric spa pumps, and rigid electric spa pumps. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #1 at p. 1) The DPPP Working Group defined the specific characteristics of each specific pump variety that it considers to be a dedicated-purpose pool pump. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #4 at pp. 2-4) These definitions are discussed in more detail in sections III.A.3, III.A.4, and III.A.5

gid electric spa pumps. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #1 at p. 1) The DPPP Working Group defined the specific characteristics of each specific pump variety that it considers to be a dedicated-purpose pool pump. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #4 at pp. 2-4) These definitions are discussed in more detail in sections III.A.3, III.A.4, and III.A.5.

Consistent with the recommendations of the DPPP Working Group, DOE proposes the following definition for dedicated-purpose pool pump:

Dedicated-purpose pool pump comprises self-priming pool filter pumps, non-self-priming pool filter pumps, waterfall pumps, pressure cleaner booster pumps, integral sand-filter pool pumps, integral-cartridge filter pool pumps, storable electric spa pumps, and rigid electric spa pumps.

DOE believes that the proposed definition for dedicated-purpose pool pump captures all varieties of pump that are typically used in pools to circulate water or provide other auxiliary functions and clearly delineates that the term includes only the listed varieties. DOE notes that the proposed definition is also consistent with comments received in response to the May 2015 DPPP RFI.

DOE requests comment on the proposed definition for “dedicated-purpose pool pump.”

3. Pool Filter Pumps

Pool filter pumps are the most common style of dedicated-purpose pool pump. A “pool filter pump” or “pool circulation pump” is typically used to refer to an end suction style pump (see section III.A.1) that circulates water through a pool and filtration system and removes large debris using a basket strainer or other device. The DPPP Working Group recommended to define pool filter pump as an end suction pump that (a) either:

(1) Includes an integrated basket strainer, or

(2) does not include an integrated basket strainer, but requires a basket strainer for operation, as stated in manufacturer literature provided with the pump; and

filtration system and removes large debris using a basket strainer or other device. The DPPP Working Group recommended to define pool filter pump as an end suction pump that (a) either:

(1) Includes an integrated basket strainer, or

(2) does not include an integrated basket strainer, but requires a basket strainer for operation, as stated in manufacturer literature provided with the pump; and

(b) may be distributed in commerce connected to, or packaged with, a sand filter, removable cartridge filter, or other filtration accessory, so long as the filtration accessory is connected with consumer-removable connections that allow the pump to be plumbed to bypass the filtration accessory. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-3) In this NOPR, DOE proposes adopting the Working Group's recommended definition for pool filter pump.

DOE requests comment on the proposed definition of “pool filter pump.”

a. Definition of a Basket Strainer and Filtration Accessories

The proposed definition of pool filter pump includes the use of a basket strainer to differentiate pool filter pumps from other varieties of end suction pumps. The DPPP Working Group discussed the basket strainer feature and determined that all pool filter pumps will either include an integrated basket strainer or require one to be obtained separately and installed in order for the pump function correctly. (Docket No. EERE-2015-BT-STD-0008, CA IOUs and Pentair, No. 58

in order for the pump function correctly. (Docket No. EERE-2015-BT-STD-0008, CA IOUs and Pentair, No. 58

The DPPP Working Group also noted that some pool filter pumps may be distributed in commerce with additional pool filtration equipment, such as a sand filter or removable cartridge filter, but that are otherwise similar to pool filter pumps sold without such additional filtration accessories. The DPPP Working Group concluded that, if the additional pool filtration equipment is connected to the bare pump with consumer-removable connections that allow the pump to be plumbed to bypass the filtration accessory, then the package, as distributed in commerce, should be considered as a pool filter pump. (Docket No. EERE-2015-BT-STD-0008, No. 58 at pp. 127-132) The DPPP Working Group also recommended that, if the removable cartridge filter or sand filter could not be plumbed out for testing, such a pump would be considered an integral cartridge-filter pool pump or an integral sand-filter pool pump, respectively, as described in section III.A.3.c. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-3)

Therefore, to clearly establish what would be considered a “removable cartridge filter” for the purposes of applying these regulations, and especially to differentiate removable cartridge filters from basket strainers, the DPPP Working Group recommended that the definitions of basket strainer and removable cartridge filter include a specification for the diameter of spherical solid that the basket strainer or filter component is capable of passing. The DPPP Working Group discussed this issue and determined that a diameter of 1 mm would effectively distinguish between removable cartridge filters and basket strainers. (Docket No. EERE-2015-BT-STD-0008, CA IOUs, DOE, Waterway, and Zodiac, No. 53 at pp

cartridge filter include a specification for the diameter of spherical solid that the basket strainer or filter component is capable of passing. The DPPP Working Group discussed this issue and determined that a diameter of 1 mm would effectively distinguish between removable cartridge filters and basket strainers. (Docket No. EERE-2015-BT-STD-0008, CA IOUs, DOE, Waterway, and Zodiac, No. 53 at pp. 13-19) Therefore, the DPPP Working Group recommended a definition for “removable cartridge filter” as “a filter component with fixed dimensions that captures and removes suspended particles from water flowing through the unit. The removable cartridge filter is not capable of passing spherical solids of 1 mm in diameter, can be removed from the filter housing by hand or using only simple tools, and is not a sand filter. Simple tools include but are not limited to a screwdriver, pliers, and an open-ended wrench.” (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-3)

Similarly, to clearly differentiate the sand filters from other filtration apparatuses, such as basket strainers and removable cartridge filters, the DPPP Working Group recommended defining “sand filter” as “a device designed to filter water through sand or an alternate sand-type media.” The proposed definition for sand filter is intended to include all depth filters that allow fluid to pass through while retaining particulates and debris in a porous filtration medium. In the DPPP equipment industry, such a filter is most commonly made with sand, but could also be made with other media such as diatomaceous earth. (Docket No. EERE-2015-BT-STD-0008, No. 58 at pp. 91-96).

a filter is most commonly made with sand, but could also be made with other media such as diatomaceous earth. (Docket No. EERE-2015-BT-STD-0008, No. 58 at pp. 91-96).

DOE notes that these definitions are useful in clearly differentiating different styles of pool filter pumps, including integral cartridge-filter and sand-filter pool pumps, from those that have non-integral filtration accessories. In this NOPR, DOE proposes to adopt definitions for basket strainer, removable cartridge filter, and sand filter, as recommended by the DPPP Working Group.

DOE requests comment on the proposed definitions of “basket strainer,” “removable cartridge filter,” and “sand filter.”

In addition, DOE also proposes a definition for “integral,” which is presented and discussed in more detail in section III.A.3.c.

b. Self-Priming and Non-Self-Priming Pool Filter Pumps

All pool filter pumps on the market are either self-priming or non-self-priming. Self-priming pumps are able to lift liquid that originates below the centerline of the pump inlet and, after initial manual priming, are able to subsequently re-prime without the use of external vacuum sources, manual filling, or a foot valve. In contrast, non-self-priming pumps must be manually primed prior to start up each time. Accordingly, self-priming pumps are constructed in a different manner than non-self-priming pumps and have different energy use characteristics. Specifically, self-priming pool filter pumps typically incorporate a diffuser that maintains the prime on the pump between periods of operation. The diffuser affects the energy performance of the pump because it can decrease the maximum achievable energy efficiency.

In addition, whether a pool filter pump is self-priming or not also impacts the typical applications for pool filter pumps

ristics. Specifically, self-priming pool filter pumps typically incorporate a diffuser that maintains the prime on the pump between periods of operation. The diffuser affects the energy performance of the pump because it can decrease the maximum achievable energy efficiency.

In addition, whether a pool filter pump is self-priming or not also impacts the typical applications for pool filter pumps. Specifically, in the DPPP equipment industry, self-priming pool filter pumps are often referred to as “inground pool pumps” and non-self-priming pool filter pumps are often referred to as “aboveground pool pumps.” 18 This is because in aboveground pools, the pump is typically installed on the ground and below the water level in the pool, so the water will naturally flood the pump and self-priming capability is not necessary. Conversely, in inground pools, the pump is also located on the ground next to the pool, but the pump is above the water line and the pump must be self-priming for convenient and continuous operation of the pump.

18 DOE notes that in the May 2015 DPPP RFI, DOE referred to self-priming and non-self-priming pool filter pumps as inground and aboveground pool pumps, respectively. 80 FR 26475, 26481 (May 8, 2015)

Accordingly, the DPPP Working Group proposed to analyze self-priming and non-self-priming pool filter pumps separately. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #2A at p. 2) The DPPP Working Group also recommended definitions for “self-priming pool filter pump” and “non-self-priming pool filter pump” as follows:

• Self-priming pool filter pump means a pool filter pump that is a self-priming pump.

• Non-self-priming pool filter pump means a pool filter pump that is not a self-priming pump.

(Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp

at p. 2) The DPPP Working Group also recommended definitions for “self-priming pool filter pump” and “non-self-priming pool filter pump” as follows:

• Self-priming pool filter pump means a pool filter pump that is a self-priming pump.

• Non-self-priming pool filter pump means a pool filter pump that is not a self-priming pump.

(Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-3) DOE notes that, in the January 2016 general pumps TP final rule, DOE already defined the term “self-priming pump” as a pump that (1) is designed to lift liquid that originates below the centerline of the pump inlet; (2) contains at least one internal recirculation passage; and (3) requires a manual filling of the pump casing prior to initial start-up, but is able to re-prime after the initial start-up without the use of external vacuum sources, manual filling, or a foot valve. 81 FR 4086, 4147 (Jan. 25, 2016). However, this definition is not applicable to dedicated-purpose pool pumps because pool filter pumps

In considering a definition for self-priming pool filter pump, the DPPP Working Group subsequently discussed any unique characteristics that would effectively differentiate self-priming pool filter pumps from those that were not. Specifically, the DPPP Working Group members noted that NSF International 19 /ANSI 50-2015 (NSF/ANSI 50-2015), “Equipment for Swimming Pools, Spas, Hot Tubs, and Other Recreational Water Facilities,” which contains testing methods and criteria for determining whether a dedicated-purpose pool pump is capable of self-priming. (Docket No. EERE-2015-BT-STD-0008, No. XX at pp. 16-40; 109-114; 122-129) Specifically, section 6.8 of NSF/ANSI 50-2015 states that “a pump designated as self-priming shall be capable of repriming itself when operated under a suction lift without the addition of more liquid. Self-priming capability shall be verified in accordance with Annex C, section C.3.” Further, section C.3 of Annex C of NSF/ANSI 50-2015 describes the self-priming capability test method

14; 122-129) Specifically, section 6.8 of NSF/ANSI 50-2015 states that “a pump designated as self-priming shall be capable of repriming itself when operated under a suction lift without the addition of more liquid. Self-priming capability shall be verified in accordance with Annex C, section C.3.” Further, section C.3 of Annex C of NSF/ANSI 50-2015 describes the self-priming capability test method. The criteria a pump must meet to satisfy the self-priming capability test are being able to prime under a vertical lift of 5 feet or the manufacturer's specified lift, whichever is greater, within 6 minutes or the manufacturer's recommended time, whichever is greater.

19 NSF International was previously called the National Sanitation Foundation, but changed their name to NSF International in 1990.

The NSF/ANSI 50-2015 method provides manufacturers with a considerable amount of discretion regarding the categorization of self-priming pumps. However, DOE intends to establish clear and unambiguous criteria to determine self-priming capability to ensure consistent and equitable product ratings across pump models. The DPPP Working Group discussed the importance of aligning the proposed definition of self-priming pool filter pump with that used in NSF/ANSI 50-2015. Specifically, Hayward and Zodiac noted that the vertical lift and true priming time referenced in any potential DOE definition should be equivalent to that specified in NSF/ANSI 50-2015. (Docket No. EERE-2015-BT-STD-0008, Hayward, No. 79 at pp. 160; Zodiac, No. 79 at pp. 161-162,)

In order for DOE's definitions to be clear, consistent, and unambiguous, DOE must specify clear and unambiguous criteria that would be used to determine whether a pool filter pump is self-priming. To that end, the DPPP Working Group proposed definitions for self-priming and non-self-priming pool filter pumps that were consistent with the NSF/ANSI 50-2015 criteria, but also provided clear and unambiguous criteria to allow for consistent categorization of such pumps

ous, DOE must specify clear and unambiguous criteria that would be used to determine whether a pool filter pump is self-priming. To that end, the DPPP Working Group proposed definitions for self-priming and non-self-priming pool filter pumps that were consistent with the NSF/ANSI 50-2015 criteria, but also provided clear and unambiguous criteria to allow for consistent categorization of such pumps. Specifically, in the April 2016 meeting, the DPPP Working Group voted to approve the following definitions for self-priming and non-self-priming pool filter pumps: 20

20 There was one vote against the approved definitions of self-priming and non-self-priming pool filter pump. Pentair disagreed with the proposed definitions because Pentair manufactures aboveground pool pumps that can prime themselves to some extent. Although Pentair does not claim these pumps as self-priming, they would meet the definition of self-priming proposed by the Working Group. As such, Pentair was concerned that a sizeable portion of their aboveground pumps would be classified as the self-priming variety. (Docket No. EERE-2015-BT-STD-0008, Pentair, No. 79 at p. 191)

Self-priming pool filter pump means a pool filter pump that is certified under NSF/ANSI 50-2015 to be self-priming or is capable of re-priming to a vertical lift of at least 5 feet with a true priming time less than or equal to 10 minutes, when tested in accordance with NSF/ANSI 50-2015.

Non-self-priming pool filter pump means a pool filter pump that is not certified under NSF/ANSI 50-2015 to be self-priming and is not capable of re-priming to a vertical lift of at least 5 feet with a true priming time less than or equal to 10 minutes, when tested in accordance with NSF/ANSI 50-2015

e priming time less than or equal to 10 minutes, when tested in accordance with NSF/ANSI 50-2015.

The definitions are consistent with the NSF/ANSI 50-2015 self-priming designation such that any pumps certified as self-priming under NSF/ANSI 50-2015 would be treated as self-priming pool filter pumps under the DOE regulations, even if such a pump was certified based on manufacturer's specified or recommended vertical lift and/or true priming time. However, as certification with NSF/ANSI 50-2015 is voluntary, the definitions also adopt specific criteria in terms of vertical lift and true priming time that are applicable to any pool filter pumps not certified as self-priming under NSF/ANSI 50-2015. The criterion for vertical lift is specified as 5 feet, consistent with the NSF/ANSI 50-2015 requirement. This ensures that all pool filter pumps that can achieve a vertical lift of 5 feet (within the required true priming time), whether they are certified with NSF/ANSI or not, would be considered a self-priming pool filter pump under DOE's regulations. However, DOE notes that, in order to specify the appropriate level of precision in the definitions, DOE proposes to specify the vertical lift value as 5.0 feet. DOE believes this level of precision is reasonable and achievable given the repeatability of the test and the level of accuracy required by the equipment for measuring distance specified in section III.D.2.f.

The criterion for true priming time recommended by the DPPP Working Group is 10 minutes, as opposed to the 6 minutes specified in NSF/ANSI 50-2015

ecify the vertical lift value as 5.0 feet. DOE believes this level of precision is reasonable and achievable given the repeatability of the test and the level of accuracy required by the equipment for measuring distance specified in section III.D.2.f.

The criterion for true priming time recommended by the DPPP Working Group is 10 minutes, as opposed to the 6 minutes specified in NSF/ANSI 50-2015. This is because the 6 minute threshold is a minimum, and manufacturers believed that some pool filter pumps that are currently considered self-priming pool filter pumps in the industry have true priming times greater than 6 minutes. Thus, the DPPP Working Group believed that 10 minutes was more appropriate and comprehensive. Similar to the specification on vertical lift, DOE proposes to more precisely specify the true priming time as 10.0 minutes, which DOE also believes is reasonable and consistent with the level of accuracy required by the time measurement equipment specified in section III.D.2.f.

Therefore, DOE proposes to adopt new definitions for self-priming and non-self-priming pool filter pumps based on the NSF/ANSI 50-2015 test and the criteria recommended by the DPPP Working Group, with minor modifications regarding the level of precision required by the criteria. DOE notes that these definitions rely on the NSF/ANSI 50-2015 test method to determine self-priming capability. Accordingly, DOE proposes to incorporate by reference relevant sections of the NSF/ANSI 50-2015 standard and also proposes several modifications and additions to improve repeatability and consistency of the test results. DOE's proposed test procedure for determining self-priming capability, including the incorporation by reference of the NSF/ANSI 50-2015 test method, is discussed further in section III.E.2.

DOE's proposed test procedure for determining self-priming capability, including the incorporation by reference of the NSF/ANSI 50-2015 test method, is discussed further in section III.E.2.

As noted previously, DOE established a definition for self-priming pump in the January 2016 general pumps TP final rule that is not applicable to dedicated-purpose pool pumps. 81 FR 4086, 4147 (Jan. 25, 2016). However, self-priming pool filter pumps are a style of pump and are self-priming. Therefore, to ensure the definition of self-priming pump is comprehensive and consistent with the proposed new

DOE requests comment on the proposed amendments to the definition of self-priming pump.

Finally, as discussed further in section III.A.4.a, a waterfall pump is a specific style of pool filter pump that has flow and head characteristics designed specifically for waterfall and water feature applications. Section III.A.4.a also presents the specific definition for waterfall pump. As waterfall pumps are pool filter pumps and could be either self-priming or non-self-priming, unless explicitly excluded, they would meet the definitions of self-priming or non-self-priming pool filter pump proposed by the Working Group. However, DOE intends for such pumps to be treated specifically as waterfall pumps. Therefore, in order to exclude waterfall pumps from the self-priming and non-self-priming pool filter pump varieties, DOE proposes to clarify such in the definition of self-priming and non-self-priming pool filter pump. The proposed definitions for self-priming and non-self-priming pool filter pump read as set out in the regulatory text at the end of this document.

DOE requests comment on the proposed definitions for “self-priming pool filter pump” and “non-self-priming pool filter pump.”

c. Integral Cartridge-Filter and Integral Sand-Filter Pool Pumps

Most self-priming and non-self-priming filter pumps are installed in permanent inground or aboveground pools

f-priming pool filter pump read as set out in the regulatory text at the end of this document.

DOE requests comment on the proposed definitions for “self-priming pool filter pump” and “non-self-priming pool filter pump.”

c. Integral Cartridge-Filter and Integral Sand-Filter Pool Pumps

Most self-priming and non-self-priming filter pumps are installed in permanent inground or aboveground pools. However, a significant market also exists for temporary pools; e.g., inflatable or collapsible pools that can be deflated or collapsed when not in use. Although temporary pools also require dedicated-purpose pool pumps to circulate and filter the water, these pools are typically served by a unique style of dedicated-purpose pool pump that is exclusively distributed in commerce with a temporary pool or as a replacement pump for such a pool. These pumps are integrally and permanently mounted to a filtration accessory such as an integral cartridge-filter or sand-filter. These pumps can only be operated with the integral filtration accessory inline—the filtration accessory cannot be plumbed out for the purposes of testing. As a result, these pumps may require separate testing considerations than dedicated-purpose pool pumps for non-temporary pools. However, as discussed further in section III.A.6, the DPPP Working Group recommended only prescriptive energy conservation standards for such equipment, not performance-based standards. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #2B at p. 2) The recommended prescriptive standard requires that timers be distributed in commerce with the pumps. (Docket No. EERE-2015-BT-STD-0008, No. 82 Recommendation #2 at p. 2) Therefore, the test procedure proposed in this document is not applicable to integral cartridge-filter and sand-filter pool pumps.

DOE needs to define integral cartridge-filter and integral sand-filter pool pumps clearly to differentiate them from other DPPP varieties

uires that timers be distributed in commerce with the pumps. (Docket No. EERE-2015-BT-STD-0008, No. 82 Recommendation #2 at p. 2) Therefore, the test procedure proposed in this document is not applicable to integral cartridge-filter and sand-filter pool pumps.

DOE needs to define integral cartridge-filter and integral sand-filter pool pumps clearly to differentiate them from other DPPP varieties. The DPPP Working Group recommended the following definitions for integral cartridge-filter pool pump and integral sand-filter pool pump:

• Integral cartridge-filter pool pump means a pump that requires a removable cartridge filter, installed [in a housing] on the suction side of the pump, for operation; and the pump cannot be plumbed to bypass the cartridge filter for testing.

• integral sand-filter pool pump means a pump distributed in commerce with a sand filter that cannot be bypassed for testing.

(Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-3) DOE believes that the proposed definitions differentiate integral cartridge-filter and integral sand-filter pool pumps from other varieties of pool filter pumps based on their physical construction. DOE proposes to adopt the definitions for integral cartridge-filter pool pump and integral sand-filter pool pump recommended by the DPPP Working Group with a minor change to use consistent terminology in both definitions.

DOE requests comment on the proposed definition of “integral cartridge-filter pool pump” and “integral sand-filter pool pump.”

4. Other Varieties of Dedicated-Purpose Pool Pumps

In addition to pool filter pumps, in the May 2015 DPPP RFI, DOE identified varieties of dedicated-purpose pool pumps that are used to drive auxiliary pool equipment such as pool cleaners and water features. 80 FR 26475, 26481 (May 8, 2015). These pumps, which include waterfall pumps and pressure cleaner booster pumps, are discussed in greater detail in the following sections.

pose Pool Pumps

a. Waterfall Pumps

Certain styles of pumps are similar in design and construction to pool filter pumps but specifically intended to pump water for water features, such as waterfalls, and, therefore, have limited head and speed operating ranges. DOE refers to these pumps as waterfall pumps. Waterfall pumps meet the definition of pool filter pump discussed in section III.A.3.b, but are always equipped with a lower speed motor (approximately 1,800 rpm) in order to serve the specific high flow, low head applications of typical water features. Based on this unique construction and end user utility, the DPPP Working Group found it appropriate to differentiate waterfall pumps from self-priming and non-self-priming pool filter pumps. In accordance with the intent 21 of the December 2015 DPPP Working Group's recommendation (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at pp. 2-4), DOE proposes to define waterfall pump as “a pool filter pump with maximum head less than or equal to 30 feet, and a maximum speed less than or equal to 1,800 rpm.”

21 DOE notes that the verbatim text of the waterfall pump definition proposed by the DPPP Working Group in the December 2015 DPPP Working Group recommendations is “a maximum 1,800 rpm nominal speed, motor-driven pool filter pump with maximum head less than or equal to 30 feet.” (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #4 at pp. 2-4) However, in this NOPR, DOE proposes to make a few modifications to the definition recommended by the Working Group to improve the clarity of the definition

the December 2015 DPPP Working Group recommendations is “a maximum 1,800 rpm nominal speed, motor-driven pool filter pump with maximum head less than or equal to 30 feet.” (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #4 at pp. 2-4) However, in this NOPR, DOE proposes to make a few modifications to the definition recommended by the Working Group to improve the clarity of the definition. Specifically, DOE proposes to rearrange the terms in the definition, and remove the reference to a waterfall pump as referencing a specific driver. DOE believes these changes are consistent with the intent of the DPPP Working Group and do not substantially change the meaning of the definition.

The proposed definition uses maximum head and a specific maximum speed to distinguish waterfall pumps from other varieties of pool filter pumps. During negotiations, Hayward noted that waterfall pumps typically operate at half speed [of a typical dedicated-purpose pool pump], because the application of a waterfall feature does not require a significant amount of head. (Docket No. EERE-2015-BT-STD-0008, Hayward, No. 39 at pp. 62-63) In this context, half speed refers to 1,800 rpm nominal speed or a 4-pole motor. (Docket No. EERE-2015-BT-STD-0008, Hayward, No. 39 at p. 74) The DPPP Working Group agreed that all currently available waterfall pumps utilize 4-pole motors, as their low flow requirements do not necessitate the use of a higher speed 2-pole motor. Furthermore, the DPPP Working Group reviewed publically available

EP20SE16.000

The DPPP Working Group compared the waterfall pump performance data with the performance data of those defined as self-priming and non-self-priming pool filter pumps, and determined that those filter pumps all produce more than 30 feet of head. Therefore, the DPPP Working Group concluded that a maximum head of 30 feet, combined with a motor with a maximum rotating speed of 1,800, would clearly distinguish waterfall pumps from other varieties of pool filter pumps

a with the performance data of those defined as self-priming and non-self-priming pool filter pumps, and determined that those filter pumps all produce more than 30 feet of head. Therefore, the DPPP Working Group concluded that a maximum head of 30 feet, combined with a motor with a maximum rotating speed of 1,800, would clearly distinguish waterfall pumps from other varieties of pool filter pumps.

DOE requests comment on the proposed definition of “waterfall pump.”

b. Pressure Cleaner Booster Pumps

Pressure cleaner booster pumps provide the water pressure that is used to both propel pressure-side pool cleaners along the bottom of the pool and to remove debris as the cleaner moves. To perform this task, a pressure cleaner booster pump must provide a high amount of head and a low flow.

The DPPP Working Group recommended that pressure cleaner booster pumps be included as a variety of dedicated-purpose pool pump, subject to the test procedure, and specifically considered in the analysis to support potential energy conservation standards. (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #1 at p. 1, #2A at p. 2, and #6 at p. 5) However, the DPPP Working Group did not recommend a definition of pressure cleaner booster pump due to the difficulty of effectively differentiating pressure cleaner booster pumps from other DPPP varieties. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendation #4 at p. 3) Instead, the DPPP Working Group recommended that DOE develop an appropriate definition.

The DPPP Working Group discussed different design and performance aspects of pressure cleaner booster pumps, though none were determined to be sufficiently unique to pressure cleaner booster pumps to effectively differentiate them from other pump varieties. Specifically, the DPPP Working Group acknowledged that pressure cleaner booster pumps have essentially the same construction and similar performance characteristics ( e.g., high head and low flow) as other general purpose end suction pumps. (Docket No

though none were determined to be sufficiently unique to pressure cleaner booster pumps to effectively differentiate them from other pump varieties. Specifically, the DPPP Working Group acknowledged that pressure cleaner booster pumps have essentially the same construction and similar performance characteristics ( e.g., high head and low flow) as other general purpose end suction pumps. (Docket No. EERE-2015-BT-STD-0008, No. 53 at pp. 84-85)

After considering the design, construction, and performance information for pressure cleaner booster pumps and the discussions of the DPPP Working Group, DOE determined that the most effective differentiator for pressure cleaner booster pumps is the fact that they are designed and marketed for a specific pressure-side cleaning application. Therefore, to effectively differentiate pressure cleaner booster pumps from other pump varieties, DOE proposes to define “pressure cleaner booster pump” as an end suction, dry rotor pump designed and marketed for pressure-side pool cleaner applications, and which may be UL listed under

The proposed definition for pressure cleaner booster pump does not contain any unique construction or operational features and instead utilizes intended application. To provide clarity and remove ambiguity when applying the proposed definition for pressure cleaner booster pump, DOE also proposes to adopt a definition for “designed and marketed” that DOE will use when determining the applicability of any DPPP test procedure or energy conservation standards to such pumps. Specifically, DOE proposes to define “designed and marketed” as meaning that the equipment is exclusively designed to fulfill the indicated application and, when distributed in commerce, is designated and marketed solely for that application, with the designation on the packaging and all publicly available documents ( e.g., product literature, catalogs, and packaging labels)

andards to such pumps. Specifically, DOE proposes to define “designed and marketed” as meaning that the equipment is exclusively designed to fulfill the indicated application and, when distributed in commerce, is designated and marketed solely for that application, with the designation on the packaging and all publicly available documents ( e.g., product literature, catalogs, and packaging labels).

In the proposed pressure cleaner booster pump definition, DOE also references ANSI/UL 1081-2014, “Standard for Swimming Pool Pumps, Filters, and Chlorinators,” as an illustrative aide in identifying pressure cleaner booster pumps, as such pumps would be certified under the ANSI/UL 1081-2014 standard. However, DOE recognizes that other varieties of dedicated-purpose pool pumps may also be certified under ANSI/UL 1081-2014 and thus, the reference is not mandatory in determining whether a given pump would meet the definition of pressure cleaner booster pump.

DOE requests comment on the proposed definition of “pressure cleaner booster pump” and whether DOE should consider making ANSI/UL 1081-2014 a required label instead of illustrative in order to distinguish pressure cleaner booster pumps.

5. Storable and Rigid Electric Spa Pumps

In addition to swimming pools, dedicated-purpose pool pumps are also used in spas to circulate and filter the water and operate water jets. Similar to swimming pools, spas can range in size and construction style. Specifically, spas can be portable or permanent installations and can be constructed out of a variety of materials depending on the installation.

manent installations and can be constructed out of a variety of materials depending on the installation.

Permanent, inground spas are typically constructed similar to small inground pools and use the same pumps ( i.e., self-priming pool filter pumps described in section III.A.3.b) to operate the spa. In some applications, the same self-priming pool filter pump may serve both the pool and the spa. In other applications, the permanent, inground spa may have a dedicated self-priming pool filter pump that is identical in design and construction to the self-priming pool filter pump installed in permanent, inground pools.

Conversely, for portable spas, a specific-purpose pump is typically distributed in commerce with the portable spa. Typically, the pumps used in portable electric spas are specifically designed and marketed for storable electric spa applications only. Such portable electric spa applications are aboveground and can be further differentiated into two general categories: Storable (or temporary) electric spas and rigid (or permanent) electric spas. A storable electric spa refers to an inflatable or otherwise temporary spa that can be collapsed or compacted into a storable unit. In contrast, a rigid electric spa is constructed with rigid, typically more durable materials and cannot be collapsed or compacted for storage. Both of these spa varieties use a pump to circulate water and power the water features of the electric spa. However, the pumps that are typically installed in storable or rigid electric spas have different performance and design characteristics than other varieties of dedicated-purpose pool pumps installed in permanent pools and spas due to their different usage profiles.

other varieties of dedicated-purpose pool pumps installed in permanent pools and spas due to their different usage profiles.

In the May 2015 DPPP RFI, DOE identified spa pumps as small ESCC pumps that do not have an integrated basket strainer. 80 FR 26475, 26481 (May 8, 2015). In response to the May 2015 DPPP RFI, APSP commented that there is a difference between spa pumps and portable spa pumps. APSP commented that some spa pumps are similar to other pool pumps that are self-priming and have a strainer basket, while portable spas are not self-priming and do not have strainer baskets. (Docket No. EERE-2015-BT-STD-0008, APSP, No. 10 at pp. 8-9)

In response, DOE notes that ENERGY STAR also specifically defines and differentiates “residential portable spa pump” as a pump intended for installation in a non-permanently installed residential spa as defined in ANSI/NSPI-6 (ANSI/NSPI-6-1999), “Standard for Portable Spas.” According to ENERGY STAR, such pumps are sometimes referred to as hot tub pumps, but do not include jetted bathtub pumps. 22

22 ENERGY STAR Pool Pumps—Program Requirements Version 1.1. Available at https://www.energystar.gov/products/spec/pool_pumps_specification_version_1_0_pd .

umps—Program Requirements Version 1.1. Available at https://www.energystar.gov/products/spec/pool_pumps_specification_version_1_0_pd .

The DPPP Working Group discussed potential spa pump definitions, necessary key characteristics that could differentiate the various styles of spa pumps, and the appropriateness of the proposed test procedure or any potential standards for these varieties of pumps. Ultimately, the DPPP Working Group recommended to define “storable electric spa pump” as “a pump that is distributed in commerce with one or more of the following: (1) An integral heater and (2) an integral air pump.” The DPPP Working Group also recommended to define “rigid electric spa pumps” as “an end suction pump that does not contain an integrated basket strainer or require a basket strainer for operation as stated in the manufacturer literature provided with the pump,” and meets the following three criteria: (1) Is assembled with four through bolts that hold the motor rear endplate, rear bearing, rotor, front bearing, front endplate, and the bare pump together as an integral unit; (2) is constructed with buttress threads at the inlet and discharge of the bare pump; and (3) uses a casing or volute and connections constructed of a non-metallic material. (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #4 at p. 3) Research conducted for the DPPP Working Group indicates that all pumps currently marketed as rigid electric spa pumps exhibit all three of these features. (Docket No. EERE-2015-BT-STD-0008, No. 53 at pp. 23-24) Additionally, DOE's research did not identify any pumps with all three of these features that are not marketed for use with rigid spas.

Based on the December 2015 DPPP Working Group recommendations, DOE proposes to adopt the definitions recommended by the DPPP Working Group

ed as rigid electric spa pumps exhibit all three of these features. (Docket No. EERE-2015-BT-STD-0008, No. 53 at pp. 23-24) Additionally, DOE's research did not identify any pumps with all three of these features that are not marketed for use with rigid spas.

Based on the December 2015 DPPP Working Group recommendations, DOE proposes to adopt the definitions recommended by the DPPP Working Group.

In addition, DOE notes that the proposed definition for storable electric spa pump differentiates the storable electric spa pump based on the unique characteristic that the pump is an integral part of an assembly that also contains an integral heater and/or an integral air pump. In support of the proposed definition for storable electric spa pump, the DPPP Working Group also recommended defining the term “integral” as “a part of the device that cannot be removed without compromising the device's function or destroying the physical integrity of the unit.” (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #4 at p. 3) The DPPP Working Group

DOE requests comment on the proposed definitions for “storable electric spa pump,” “rigid electric spa pump,” and “integral.”

6. Applicability of Test Procedure Based on Pump Configuration

In addition to specific definitions, the DPPP Working Group also discussed and provided recommendations pertinent to the scope of applicability of the DPPP test procedure. Ultimately, the DPPP Working Group recommended that the scope of the ECS analysis and applicable test procedure be limited to specific varieties of dedicated-purpose pool pumps. (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendations #1, #2A, and #2B at pp. 1-2; Recommendation #6 at p. 5) Specifically, the DPPP Working Group recommended that the scope of analysis for standards consider only the following DPPP varieties and only recommended test methods for these varieties:

• self-priming pool filter pumps,

• non-self-priming pool filter pumps,

• waterfall pumps, and

• pressure cleaner booster pumps

51, Recommendations #1, #2A, and #2B at pp. 1-2; Recommendation #6 at p. 5) Specifically, the DPPP Working Group recommended that the scope of analysis for standards consider only the following DPPP varieties and only recommended test methods for these varieties:

• self-priming pool filter pumps,

• non-self-priming pool filter pumps,

• waterfall pumps, and

• pressure cleaner booster pumps.

(Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #2 at p. 2 and 6 at p. 5)

Although the DPPP Working Group recommended defining integral cartridge-filter pool pumps, integral sand-filter pool pumps, storable electric spa pumps, and rigid electric spa pumps as dedicated-purpose pool pumps, it did not recommend that these DPPP varieties be considered in the ongoing ECS analysis or have test methods established in the DPPP test procedure. (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendations #1, #2A, and #2B at pp. 1-2; Recommendation #6 at p. 5) For integral cartridge-filter and sand-filter pumps, as discussed previously, the DPPP Working Group recommended to consider only a prescriptive standard, which requires that timers be distributed in commerce with the pumps. (Docket No. EERE-2015-BT-STD-0008, No. 51, Recommendation #2B at pp. 1-2) With a prescriptive standard, the performance-related metric ( i.e., WEF) and test procedure are not applicable.

test procedure are not applicable.

Regarding storable electric spa pumps and rigid electric spa pumps, the DPPP Working Group did not recommend including these varieties of dedicated-purpose pool pumps in the scope of analysis for potential standards and did not recommend establishing a test procedure for them. (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #2A at pp. 1-2 and #6 at p. 5) The DPPP Working Group excluded storable and rigid electric spa pumps from the recommended DPPP test procedure and standards analysis because the DPPP Working Group believed that it would be more appropriate to test and apply standards to storable and rigid electric spas ( i.e., portable electric spas) as an entire appliance, as is currently done under California Title 20 (Cal. Code Regs., tit. 20 section 1604, subd. (g)(2) and section 1605.3, subd. (g)(6)) and the ANSI/APSP Standard 14-2014 (ANSI/APSP 14-2014), “Portable Electric Spa Energy Efficiency.” Similarly, in response to the May 2015 DPPP RFI, APSP commented that portable spa pumps do not use a significant amount of energy in a portable electric spa and should not be separately regulated as they are components used in a regulated appliance. (Docket No. EERE-2015-BT-STD-0008, APSP, No. 10 at pp. 8-10)

Although not included in the December 2015 DPPP Working Group recommendations, the DPPP Working Group discussed how the load points specified for self-priming and non-self-priming pool filter pumps were only applicable for pumps with a rated hydraulic horsepower less than 2.5 hp, where rated hydraulic horsepower refers to the hydraulic horsepower measured at the maximum operating speed and full impeller diameter of the rated pump, as discussed in section III.E.1. (Docket No. EERE-2015-BT-STD-0008, No. 57 at pp. 280-291 and No. 50 at p

d for self-priming and non-self-priming pool filter pumps were only applicable for pumps with a rated hydraulic horsepower less than 2.5 hp, where rated hydraulic horsepower refers to the hydraulic horsepower measured at the maximum operating speed and full impeller diameter of the rated pump, as discussed in section III.E.1. (Docket No. EERE-2015-BT-STD-0008, No. 57 at pp. 280-291 and No. 50 at p. 56-62) In a meeting following the December 2015 DPPP Working Group recommendations, on April 19, 2016, the DPPP Working Group discussed and ultimately recommended that DOE not develop a test procedure or standards for self-priming and non-self-priming pool filter pumps with a rated hydraulic horsepower greater than or equal to 2.5 hp. (Docket No. EERE-2015-BT-STD-0008, No. 79 at pp. 33-54) The DPPP Working Group discussed how the typical applications and field use of very large pool filter pumps differed significantly from pool filter pumps with hydraulic horsepower less than 2.5 hp. (Docket No. EERE-2015-BT-STD-0008, CA IOUs, No. 53 at pp. 169-171; CA IOUs, No. 54 at pp. 18-19; Waterway, No. 54 at pp. 21-22; Zodiac, No. 54 at p. 23) Specifically, unlike pool filter pumps with hydraulic horsepower less than 2.5 hp, which are typically installed in residential applications (section III.C.1), very large pool filter pumps are more commonly installed in commercial applications. In commercial pools, the head and flow characteristics of pool systems are significantly different from residential applications. (Docket No. EERE-2015-BT-STD-0008, CA IOUs No. 53 at pp. 197-198) Therefore, the DPPP Working Group determined that any test procedure for very large pool filter pumps would require unique load points

filter pumps are more commonly installed in commercial applications. In commercial pools, the head and flow characteristics of pool systems are significantly different from residential applications. (Docket No. EERE-2015-BT-STD-0008, CA IOUs No. 53 at pp. 197-198) Therefore, the DPPP Working Group determined that any test procedure for very large pool filter pumps would require unique load points.

In addition, the DPPP Working Group noted the lack of performance data for self-priming and non-self-priming pool filter pumps with a rated hydraulic horsepower greater than or equal to 2.5 hp, which precluded the DPPP Working Group from establishing baseline and maximum technologically feasible (“max-tech”) efficiency levels. Without baseline and max-tech, the DPPP Working Group was unable to establish intermediary levels, and ultimately, was not able to effectively characterize the cost-versus-efficiency relationship for very large pool filter pumps. As a result, the DPPP Working Group recommended that DOE not develop standards for very large pool filter pumps as part of the current negotiated rulemaking and did not to recommend a test procedure for these pumps. (Docket No. EERE-2015-BT-STD-0008, No. 79 at pp. 33-54;) Therefore, consistent with the December 2015 DPPP Working Group recommendations, DOE proposes to not specify a test procedure for very large pool filter pumps with a rated hydraulic horsepower greater than or equal to 2.5 hp as part of this rulemaking. If DOE decides to pursue a test procedure and standards for very large pool filter pumps, DOE could do so as part of a future rulemaking. Accordingly, all future references to pool filter pumps, self-priming pool filter pumps, and non-self-priming pool filter pumps refer to pumps with a rated hydraulic horsepower less than 2.5 hp

rsepower greater than or equal to 2.5 hp as part of this rulemaking. If DOE decides to pursue a test procedure and standards for very large pool filter pumps, DOE could do so as part of a future rulemaking. Accordingly, all future references to pool filter pumps, self-priming pool filter pumps, and non-self-priming pool filter pumps refer to pumps with a rated hydraulic horsepower less than 2.5 hp.

In accordance with the December 2015 DPPP Working Group recommendations, DOE proposes that the test procedure would only be applicable to those DPPP varieties for

Further, consistent with the December 2015 DPPP Working Group recommendations, DOE proposes definitions for rigid-electric and storable-electric spa pumps as a variety of dedicated-purpose pool pump in this test procedure NOPR, but is not prescribing test procedures or reporting requirements for them. In response to HI's comment regarding the applicability of the ESCC definition to spa pumps, DOE notes that any pumps meeting the definition of dedicated-purpose pool pumps are excluded from the ESCC definition (see section III.A.1), including rigid-electric or storable-electric spa pumps, as well as self-priming and non-self-priming pool filter pumps that may be installed in spas. However, DOE notes that self-priming and non-self-priming pool filter pumps that may be installed in spas, but are not storable or rigid electric spa pumps, would still be subject to the test procedure as self-priming or non-self-priming pool filter pumps, respectively, regardless of the application.

tively, regardless of the application.

In addition, upon further review of the DPPP market and any potentially similar pumps, DOE determined that some end suction, submersible pond pumps may meet the definition of self-priming or non-self-priming pool filter pump, but were not reviewed by the DPPP Working Group and were not intended by the DPPP Working Group to be in the scope of this rulemaking. In order to exclude these pumps from this regulation, DOE proposes to exclude submersible pumps from the scope of the DPPP test procedure. To accomplish this, DOE proposes to define a “submersible pump” as “a pump that is designed to be operated with the motor and bare pump fully submerged in the pumped liquid.”

The specific test methods proposed for each of the applicable DPPP varieties is discussed in more detail in section III.C.

DOE requests comment on the proposed scope of applicability of the DPPP test procedure.

7. Definitions Related to Dedicated-Purpose Pool Pump Speed Configurations and Controls

In addition to definitions of dedicated-purpose pool pump and the specific DPPP varieties, DOE also proposes to establish definitions to further differentiate certain varieties of dedicated-purpose pool pumps based on the speed configuration of the motor and/or the presence of controls on the DPPP model as distributed in commerce. The following subsections discuss definitions for the various DPPP speed configurations and the applicability of control definitions to dedicated-purpose pool pumps.

Currently, dedicated-purpose pool pumps are distributed in commerce with a variety of motor speed configurations ( e.g., single-speed, two-speed, multi-speed, or variable-speed). The DPPP Working Group recommended that DOE establish different test points for each speed configuration in the DPPP test procedure, in order to best represent the different energy use patterns exhibited by each configuration (see section III.C). (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #6, 7 at p

eed configurations ( e.g., single-speed, two-speed, multi-speed, or variable-speed). The DPPP Working Group recommended that DOE establish different test points for each speed configuration in the DPPP test procedure, in order to best represent the different energy use patterns exhibited by each configuration (see section III.C). (Docket No. EERE-2015-BT-STD-0008, No. 51 Recommendations #6, 7 at p. 5) Therefore, DOE proposes specific definitions to establish the appropriate test method and load points for applicable dedicated-purpose pool pumps.

In the second round of DPPP Working Group meetings, the DPPP Working Group discussed and ultimately recommended definitions for the following speed configurations for dedicated-purpose pool pumps: Single-speed, two-speed, multi-speed, and variable-speed. (Docket No. EERE-2015-BT-STD-0008, No. 82, Recommendation #5A at p. 3) These definitions would enable each speed configuration to be identified and tested using the most appropriate test method based on (1) the number of operating speeds available on the pump; (2) the minimum operating speed, or turn-down ratio, 23 on the pump; (3) the pump's ability to connect to a pool pump control; and/or (4) the characteristics of that pool pump control. The DPPP Working Group recommended the following definitions:

23 The turn-down ratio for multi-speed pumps, including two-speed pumps, describes the ability of the pump to decrease speed relative to the maximum operating speed and is calculated as the maximum operating speed over the minimum operating speed of the pump.

• Single-speed dedicated-purpose pool pump means a dedicated-purpose pool pump that is capable of operating at only one speed

finitions:

• Single-speed dedicated-purpose pool pump means a dedicated-purpose pool pump that is capable of operating at only one speed.

• Two-speed dedicated-purpose pool pump means a dedicated-purpose pool pump that is capable of operating at only two different, pre-determined operating speeds, where the low operating speed is less than or equal to half of the maximum operating speed and greater than zero, and must be distributed in commerce either: (1) With a pool pump control ( i.e., variable speed drive and user interface or switch) that sets the speed in response to user preferences or (2) without a pool pump control that has such capability but is unable to operate without the presence of such a pool pump control.

• Multi-speed dedicated-purpose pool pump means a dedicated-purpose pool pump that is capable of operating at more than two discrete pre-determined operating speeds separated by speed increments greater than 100 rpm, where the lowest speed is less than or equal to half of the maximum operating speed and greater than zero, and must be distributed in commerce with an on-board pool pump control ( i.e., variable speed drive and user interface or programmable switch) that changes the speed in response to pre-programmed user preferences and allows the user to select the duration of each speedand/or the on/off times.

n of each speedand/or the on/off times.

• Variable-speed dedicated-purpose pool pump means a dedicated-purpose pool pump that is capable of operating at a variety of user-determined speeds, where all the speeds are separated by at most 100 rpm increments over the operating range and the lowest operating speed is less than or equal to one-third of the maximum operating speed and greater than zero. Such a pump must include a variable speed drive ( i.e., equipment capable of varying the speed of the motor) and be distributed in commerce either: (1) With a user interface that changes the speed in response to pre-programmed user preferences and allows the user to select the duration of each speed and/or the on/off times or (2) without a user interface but is unable to operate without the presence of a user interface.

(Docket No. EERE-2015-BT-STD-0008, No. 82, Recommendation #5A at p. 3) In addition to the number of speeds available on any given pump, the DPPP Working Group's recommended definitions contain minimum operating speeds for two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps. Specifically, the DPPP Working Group recommended a minimum speed less than or equal to half of the maximum operating speed for two-speed and multi-speed dedicated-purpose pool pumps and a minimum operating speed less than or equal to one-third of the maximum operating speed for variable-speed dedicated-purpose pool pumps. 24 This is generally consistent with ANSI/APSP/ICC-15a-2013, 25 CA Tile 20, 26 and ENERGY STAR, 27 which require that, in order to be considered two-speed, multi-speed, or variable-speed equipment, dedicated-purpose pool pumps must have the capability of operating at two or more speeds with the low speed having a rotation rate that is no more than one-half of the motor's maximum rotation rate

mps. 24 This is generally consistent with ANSI/APSP/ICC-15a-2013, 25 CA Tile 20, 26 and ENERGY STAR, 27 which require that, in order to be considered two-speed, multi-speed, or variable-speed equipment, dedicated-purpose pool pumps must have the capability of operating at two or more speeds with the low speed having a rotation rate that is no more than one-half of the motor's maximum rotation rate.

24 DOE notes that the requirement for variable-speed dedicated-purpose pool pumps would be applicable to the dedicated-purpose pool pump, when equipped with an applicable pool pump control, as the minimum operating speed will typically be dictated by the control. That is, the pump must inherently be capable of being turned down to such a speed, provided a control that is also capable of being turned down to a speed of less than or equal to one-third of the maximum speed.

25 Section 4.1.1.2.

26 Cal. Code Regs., tit. 20 section 1605.3, subd. (g)(5).

27 ENERGY STAR Pool Pumps—Program Requirements Version 1.1. Available at https://www.energystar.gov/products/spec/pool_pumps_specification_version_1_0_pd .

Further, the DPPP Working Group also recommends that in order to be considered a variable-speed dedicated-purpose pool pump, such a pump must be capable of operating in speed increments of at most 100 rpm, when installed with an applicable pool pump control. (Docket No. EERE-2015-BT-STD-0008, No. 82, Recommendation #5A at p. 3) Conversely, if such a pump is only able to operate with speed increments greater than 100 rpm, then that pump would be considered a multi-speed pump (assuming it meets all other previously discussed requirements). The minimum operating speed and spacing requirements in two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps ensure that the test procedure for these speed configurations results in representative energy performance

te with speed increments greater than 100 rpm, then that pump would be considered a multi-speed pump (assuming it meets all other previously discussed requirements). The minimum operating speed and spacing requirements in two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps ensure that the test procedure for these speed configurations results in representative energy performance. That is, unless the low operating speed is consistent with or below the specified minimum operating speed, and the speed increment requirements are met, the DPPP Working Group did not believe that the load points and weights specified for variable-speed dedicated-purpose pool pumps (presented in section III.C.1) would be representative. (Docket No. EERE-2015-BT-STD-0008, No. 95 at pp. 129-146)

Finally, the definitions recommended by the DPPP Working Group contain requirements regarding the presence and operating characteristics of a pool pump control. In the field, two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps require controls to enable operation at all available speeds. In their discussions, the DPPP Working Group acknowledged that most two-speed dedicated-purpose pool pumps are currently distributed in commerce without controls, as such pumps are typically intended to be paired with new or existing two-speed controls. Similarly, the DPPP Working Group acknowledged that variable-speed and some multi-speed dedicated-purpose pool pumps are currently distributed in commerce without a user interface (a type of control), as such pumps are typically intended to be paired with new or existing pool automation systems in the field. (Docket No. EERE-2015-BT-STD-0008, No. 95 at pp. 40-62, 76-79, 82-111; 129-147)

controls. Similarly, the DPPP Working Group acknowledged that variable-speed and some multi-speed dedicated-purpose pool pumps are currently distributed in commerce without a user interface (a type of control), as such pumps are typically intended to be paired with new or existing pool automation systems in the field. (Docket No. EERE-2015-BT-STD-0008, No. 95 at pp. 40-62, 76-79, 82-111; 129-147).

Certain members of the DPPP Working Group voiced concern that if two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps were distributed in commerce without any form of control or user interface, there would be a significant risk that such pumps would not be paired with an applicable pool pump control in the field and would not achieve the performance and potential energy savings represented by the WEF metric. (Docket No. EERE-2015-BT-STD-0008, No. 91 at pp. 141-183) Therefore, to have reasonable assurance that the test points and resultant WEF metric for the various DPPP speed configurations would be representative of actual performance of the equipment in the field, the DPPP Working Group developed the recommended definitions to ensure that only those dedicated-purpose pool pumps that either: (1) Are distributed in commerce with a pool pump control or user interface (as applicable) or, (2) for two-speed and variable-speed dedicated-purpose pool pumps, requires the installation of such controls or user interface (as applicable) in order to operate would be able to be treated as two-speed, multi-speed, and variable-speed dedicated purpose pool pumps

icated-purpose pool pumps that either: (1) Are distributed in commerce with a pool pump control or user interface (as applicable) or, (2) for two-speed and variable-speed dedicated-purpose pool pumps, requires the installation of such controls or user interface (as applicable) in order to operate would be able to be treated as two-speed, multi-speed, and variable-speed dedicated purpose pool pumps.

The DPPP Working Group developed the later requirement (that two-speed and variable-speed dedicated purpose pool pumps cannot operate without being installed with a pool pump control or user interface, as applicable) to accommodate those cases where a dedicated-purpose pool pump was intended to be installed into a residence with an existing pool pump control or user interface (as applicable) that met the stated requirements or may be paired with an applicable pool pump control or user interface in the field. In such cases, the dedicated-purpose pool pump would be allowed to be sold without the presence of a pool pump control or user interface (as applicable) so as not to burden the end-consumer with a duplicative pool pump control or user interface. However, to ensure that two-speed and variable-speed dedicated-purpose pool pumps would in all cases be installed and operated with an applicable pool pump control or user interface that enables the expected energy performance, the definitions require that these pumps be unable to operate without being connected to an applicable pool pump control or user interface in the field. Specifically, the Working Group recommended that the two-speed DPPP definition require such a pump to be distributed in commerce either: (1) With a pool pump control that has certain capabilities or (2) without a pool pump control that has those capabilities but is unable to operate without the presence of such a pool pump control

to an applicable pool pump control or user interface in the field. Specifically, the Working Group recommended that the two-speed DPPP definition require such a pump to be distributed in commerce either: (1) With a pool pump control that has certain capabilities or (2) without a pool pump control that has those capabilities but is unable to operate without the presence of such a pool pump control. Similarly, the Working Group recommended that the variable-speed DPPP definition require such a pump to include a variable speed drive and be distributed in commerce either: (1) With a pool pump user interface with certain capabilities or (2) without a user interface but is unable to operate without the presence of a user

While the DPPP Working Group's recommended definitions for two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps all reference the presence and operating characteristics of pool pump controls, the applicable types of controls vary among the definitions. In the definition of variable-speed dedicated-purpose pool pump, the definition refers to the terms “variable speed drive” and “user interface,” where the terms “variable speed drive” and “user interface” refer to a specific variety of pool pump control. Conversely, in the case of two-speed and multi-speed dedicated-purpose pool pumps, the recommended definitions allow for an additional variety of pool pump controls, namely switches, which are applicable to such equipment.

In addition, the definitions of multi-speed and variable-speed dedicated-purpose pool pump require the applicable pool pump control to be programmable such that users may select the duration of each speedand/or the on/off times and the pump will automatically operate according to that schedule without manual intervention. Both of these definitions are meant to capture pool pump controls and user interfaces that allow the user to schedule the periods of time the pool pump is operating at any given speed, as well as when the pump turns on and turns off

that users may select the duration of each speedand/or the on/off times and the pump will automatically operate according to that schedule without manual intervention. Both of these definitions are meant to capture pool pump controls and user interfaces that allow the user to schedule the periods of time the pool pump is operating at any given speed, as well as when the pump turns on and turns off. Pool pump controls and user interfaces that, for example, merely enable the user to set a duration of operation at high speed and then default to low speed operation, but do not allow the user to pre-determine when the pump would turn on and off would not meet the definition of multi-speed or variable-speed dedicated-purpose pool pump. (Docket No. EERE-2015-BT-STD-0008, No. 92 at pp. 222-231)

Conversely, for two-speed dedicated-purpose pool pumps, the DPPP Working Group recommended that the definition include the requirement that the pool pump control be capable of changing the speed in response to user preferences, but did not recommend that such controls must operate on a pre-programmed schedule. As such, the functionality required for two-speed pool pump controls may be accomplished by an automated, pre-programmed, timer-based control and user interface or a simple manual switch that would require the user to physically switch between the low and high operating speeds. The DPPP Working Group accommodated more simplistic controls for two-speed dedicated-purpose pool pumps based on the fact that most two-speed dedicated-purpose pool pumps available in the market today are not currently sold with any integrated control. (Docket No. EERE-2015-BT-STD-0008, No. 92 at pp. 215-222)

The pool pump control varieties, pool pump control operating characteristics, and requirements regarding the inclusion of pool pump controls applicable to each DPPP speed configuration are summarized in Table III.2

most two-speed dedicated-purpose pool pumps available in the market today are not currently sold with any integrated control. (Docket No. EERE-2015-BT-STD-0008, No. 92 at pp. 215-222)

Table III.2—Summary of Applicable Pool Pump Control Varieties and Related Requirements for Each DPPP Speed Configuration DPPP Speed configuration definition Applicable pool pump control varieties Pool pump control must be pre-programmable Inclusion of pool pump controls as distributed in commerce Two-Speed • Variable speed drive and user interface or • Switch No Included or DPPP model cannot operate without being installed with such controls. Multi-Speed • Variable speed drive and user interface or • Switch Yes Included and on-board. Variable-Speed • Variable speed drive and user interface Yes Included or DPPP model cannot operate without being installed with such controls. However, to ensure that the more accommodating requirements for pool pump controls in the two-speed DPPP definition would not result in an inadvertent loophole and/or bias in the market for DPPP varieties where two-speed dedicated-purpose pool pumps may be the least efficient option, the DPPP Working Group recommended additional provisions for larger two-speed self-priming pool filter pumps

trols. However, to ensure that the more accommodating requirements for pool pump controls in the two-speed DPPP definition would not result in an inadvertent loophole and/or bias in the market for DPPP varieties where two-speed dedicated-purpose pool pumps may be the least efficient option, the DPPP Working Group recommended additional provisions for larger two-speed self-priming pool filter pumps. Specifically, in order to use the two-speed DPPP test procedure (described in section III.C.1.b), the DPPP Working Group recommended that self-priming pool filter pumps that are greater than or equal to 0.711 rated hydraulic horsepower and less than 2.5 rated hydraulic horsepower and that are two-speed must also be distributed in commerce either: (1) With a pool pump control (variable speed drive and user interface or switch) that changes the speed in response to pre-programmed user preferences and allows the user to select the duration of each speedand/or the on/off times or (2) without a pool pump control with such capability but is unable to operate without the presence of such a pool pump control. (Docket No. EERE-2015-BT-STD-0008, No. 82, Recommendation #5B at p. 3). This is discussed in more detail in section III.C.1.e.

In this NOPR, DOE proposes to adopt the definitions for single-speed, two-speed, multi-speed, and variable-speed dedicated-purpose pool pump as proposed by the DPPP Working Group, with a few minor modifications. DOE notes that the definition of variable-speed dedicated-purpose pool pump recommended by the DPPP Working Group clarifies the meaning of the term variable speed drive as describing “equipment capable of varying the speed of the motor,” while the definitions of two-speed and multi-speed dedicated-purpose pool pump also reference this term but do not contain such a clarification

nor modifications. DOE notes that the definition of variable-speed dedicated-purpose pool pump recommended by the DPPP Working Group clarifies the meaning of the term variable speed drive as describing “equipment capable of varying the speed of the motor,” while the definitions of two-speed and multi-speed dedicated-purpose pool pump also reference this term but do not contain such a clarification. Therefore, to clarify the meaning of variable speed drive and ensure that such clarification is applicable to all DPPP speed configurations, DOE proposes to establish a definition for variable speed drive, for the purposes of applying the DPPP test procedure, as equipment capable of varying the speed of the motor that removes the clarifying

DOE requests comments on these proposed definitions for single-speed, two-speed, multi-speed, and variable-speed dedicated-purpose pool pump.

DOE also requests comment on any additional criteria or specificity that might be required in the definitions to effectively differentiate the various speed configurations for different DPPP varieties.

For dedicated-purpose pool pumps distributed in commerce with applicable pool pump controls, the DPPP Working Group considered additional requirements if the controls also include “freeze protection controls.” Freeze protection controls are controls that, at a certain ambient temperature, turn on the dedicated-purpose pool pump to circulate water for a period of time to prevent the pool and water in plumbing from freezing. As the control schemes for freeze protection vary widely between manufacturers, the resultant energy consumption associated with such control can also vary depending on control settings and climate

ion controls are controls that, at a certain ambient temperature, turn on the dedicated-purpose pool pump to circulate water for a period of time to prevent the pool and water in plumbing from freezing. As the control schemes for freeze protection vary widely between manufacturers, the resultant energy consumption associated with such control can also vary depending on control settings and climate. To ensure freeze protection controls on dedicated-purpose pool pumps only operated when necessary and did not result in unnecessary, wasted energy use, the DPPP Working Group discussed and ultimately recommended establishing prescriptive requirements for dedicated-purpose pool pumps that are distributed in commerce with freeze protection controls. Specifically, the DPPP Working Group recommended that all dedicated-purpose pool pumps distributed in commerce with freeze protection controls be shipped either:

(1) With freeze protection disabled or

(2) with the following default, user-adjustable settings:

a. The default dry-bulb air temperature setting is no greater than 40 °F; and

b. The default run time setting shall be no greater than 1 hour (before the temperature is rechecked); and

c. The default motor speed shall not be more than 1/2 of the maximum available speed.

(Docket No. EERE-2015-BT-STD-0008, No. 82, Recommendation #6A at p. 4). In order to identify dedicated-purpose pool pumps with freeze protection controls for which the recommended prescriptive requirements would be applicable, DOE proposes to define “freeze protection controls” as “pool pump controls that, at a certain ambient temperature, turn on the dedicated-purpose pool pump to circulate water for a period of time to prevent the pool and water in plumbing from freezing.”

DOE requests comment on the proposed definition for freeze protection controls.

he recommended prescriptive requirements would be applicable, DOE proposes to define “freeze protection controls” as “pool pump controls that, at a certain ambient temperature, turn on the dedicated-purpose pool pump to circulate water for a period of time to prevent the pool and water in plumbing from freezing.”

DOE requests comment on the proposed definition for freeze protection controls.

8. Basic Model

In the course of regulating consumer products and commercial and industrial equipment, DOE has developed the concept of a “basic model” to determine the specific product or equipment configuration(s) to which the regulations would apply. For the purposes of applying the proposed DPPP regulations, DOE also proposes to define what constitutes a “basic model” of a dedicated-purpose pool pump. Applying this basic model concept would allow manufacturers to group similar models within a basic model to minimize testing burden, while ensuring that key variables that differentiate DPPP energy performance and/or utility are maintained as separate basic models. In other words, manufacturers would need to test only a representative number of units of a basic model in lieu of testing every model they manufacture. However, manufacturers may only group individual models of dedicated-purpose pool pumps that are reasonably similar; that is, only dedicated-purpose pool pumps from the same equipment class may be grouped together. In addition, the represented performance for all models within a basic model must be based on the tested performance of the least efficient model.

In the January 2015 general pumps TP final rule, DOE adopted a definition for a “basic model” of pump that provided additional specifications regarding the characteristics that differentiate basic models, including variation in number of stages for multistage pumps, variation in impeller trim, and variation in motor horsepower resulting from differences in number of stages or impeller trim. 81 FR 4086, 4092-94 (Jan. 25, 2016)

umps TP final rule, DOE adopted a definition for a “basic model” of pump that provided additional specifications regarding the characteristics that differentiate basic models, including variation in number of stages for multistage pumps, variation in impeller trim, and variation in motor horsepower resulting from differences in number of stages or impeller trim. 81 FR 4086, 4092-94 (Jan. 25, 2016).

DOE proposes to amend the definition of “basic model” for pumps established in the January 2016 general pumps TP final rule to also accommodate dedicated-purpose pool pumps. DOE notes that many of the specific accommodations in the basic model definition regarding number of stages for multistage pumps and trimmed impellers are applicable only to those general pumps that were the subject of the January 2016 general pumps TP final rule. 81 FR 4086 (Jan. 25, 2016). DOE understands that dedicated-purpose pool pumps are exclusively single-stage pumps and, therefore, the provision regarding variation in number of stages is not applicable. Furthermore, DOE understands that each DPPP model is offered with only one impeller diameter, unlike general pumps for which a given pump model may be sold with many different impeller diameters that are customized for each application. Therefore, DOE believes that the provision for grouping individual pumps that vary only in impeller diameter, or impeller trim, is also not applicable to dedicated-purpose pool pumps; any variation in impeller trim would constitute a separate basic model for dedicated-purpose pool pumps. Finally, as neither the multistage nor impeller trim specifications for basic model designation apply to dedicated-purpose pool pumps, the provision regarding variation in motor horsepower resulting from variation in either of those characteristics also does not apply to dedicated-purpose pool pumps

ariation in impeller trim would constitute a separate basic model for dedicated-purpose pool pumps. Finally, as neither the multistage nor impeller trim specifications for basic model designation apply to dedicated-purpose pool pumps, the provision regarding variation in motor horsepower resulting from variation in either of those characteristics also does not apply to dedicated-purpose pool pumps.

Therefore, DOE proposes to adopt only the general provisions of the current pump basic model definition that are applicable to dedicated-purpose pool pumps, which includes all units of a given product or equipment type (or class thereof) manufactured by one manufacturer, having the same primary energy source, and having essentially identical electrical, physical, and functional (or hydraulic) characteristics that affect energy consumption, energy efficiency, water consumption, or water efficiency. In addition, DOE proposes to clarify that the specific provisions regarding number of stages, impeller trim, and variation in motor horsepower as a result of those characteristics adopted in the pumps basic model definition are only applicable to the general pumps addressed by the January 2015 general pumps TP and ECS final rule, for which standards are specified in 10 CFR 431.465(b). 81 FR 4086 (Jan. 25, 2016) and 81 FR 4368 (Jan. 26, 2016).

DOE requests comment on the proposed definition of “basic model.”

In addition, DOE requests comment on any characteristics unique to dedicated-purpose pool pumps that may necessitate modifications to the proposed definition of “basic model.”

B. Rating Metric

One of the first and most important issues DOE must consider in designing a test procedure is the selection of the regulatory metric. In selecting an appropriate metric for dedicated-purpose pool pumps, the DPPP Working Group reviewed applicable metrics

cs unique to dedicated-purpose pool pumps that may necessitate modifications to the proposed definition of “basic model.”

B. Rating Metric

1. Review of Current DPPP Regulatory and Voluntary Programs

In considering a metric for dedicated-purpose pool pumps, the DPPP Working Group conducted research to identify what, if any, DPPP-related regulatory and voluntary programs currently exist. DOE identified one regulatory program, first adopted by the California Energy Commission (CEC) and subsequently implemented in a number of other States, 28 and three domestic voluntary pool pump programs by APSP, the Consortium for Energy Efficiency (CEE), and ENERGY STAR that are relevant to dedicated-purpose pool pumps. DOE also identified international pool pump programs established in Australia and New Zealand, as well as DOE's own January 2016 general pumps TP final rule. 81 FR 4086 (Jan. 25, 2016).

28 See, e.g. Ariz. Rev. Stat. section 44-1375 (2015); Conn. Agencies Regs. section 16a-48.4 (2015); Fla. Stat. Ann. section 533.909 (2015); and Wash. Rev. Code Ann. section 19.260.040 (2015).

tion 16a-48.4 (2015); Fla. Stat. Ann. section 533.909 (2015); and Wash. Rev. Code Ann. section 19.260.040 (2015).

The majority of existing regulatory and voluntary programs in the United States for dedicated-purpose pool pumps focus on energy factor (EF) as the key metric for describing performance. Some programs also establish prescriptive requirements related to the construction of DPPP motors. Specifically, Article 4 of Chapter 4 of Title 20 of the California Code of Regulations, “Appliance Efficiency Regulations,” (CA Title 20); 29 ANSI/APSP/ICC-15a-2013; 30 the CEE Residential Swimming Pool Initiative; 31 and ENERGY STAR 32 all require testing and reporting of EF and other pump performance parameters at a variety of load points, specified in terms of up to three systems curves (curves A, B, and C) and up to four speeds (minimum, maximum, half, and most efficient speed). In addition to EF, three of these programs ( i.e., CA Title 20, ANSI/APSP/ICC-15a-2013, and ENERGY STAR) require reporting of nominal motor speed, flow, and input power at the specified load points based on testing in accordance with ANSI/HI 1.6-2000. 33 The three unique system curves (curve A, curve B, and curve C) are described by equations in terms of head and flow, as shown in Table III.3, and were developed to be representative of 2.0-inch, 1.5-inch, and 2.5-inch diameter plumbing, respectively. 34

29 California Energy Commission (CEC). Chapter 4: Energy Conservation, Article 4: Appliance Efficiency Regulations. In California Code of Regulations Title 20. Public Utilities and Energy. § 1601 1608. March 28, 2014. CEC-140-2014-002. www.energy.ca.gov/2014publications/CEC-140-2014-002/CEC-140-2014-002.pdf . A 2015 update to the CEC Title 20 Appliance Efficiency Regulations was released in July 2015. CEC-400-2015-021. http://www.energy.ca.gov/2015publications/CEC-400-2015-021/CEC-400-2015-021.pdf .

30 Section 4.1.2 of ANSI/APSP/ICC-15a-2013.

31 Consortium for Energy Efficiency (CEE)

1 1608. March 28, 2014. CEC-140-2014-002. www.energy.ca.gov/2014publications/CEC-140-2014-002/CEC-140-2014-002.pdf . A 2015 update to the CEC Title 20 Appliance Efficiency Regulations was released in July 2015. CEC-400-2015-021. http://www.energy.ca.gov/2015publications/CEC-400-2015-021/CEC-400-2015-021.pdf .

30 Section 4.1.2 of ANSI/APSP/ICC-15a-2013.

31 Consortium for Energy Efficiency (CEE). CEE High Efficiency Residential Swimming Pool Initiative. December 2012. http://library.cee1.org/sites/default/files/library/9986/cee_res_swimmingpoolinitiative_07dec2012_pdf_10557.pdf .

32 ENERGY STAR Program Requirements Product Specifications for Pool Pumps, Final Test Method. Rev. Jan-2013. https://www.energystar.gov/sites/default/files/specs/Pool%20Pump%20Final%20Test%20Method%2001-15-2013.pdf .

33 DOE notes that CA Title 20 actually requires that measurements of pump efficiency be conducted in accordance with ANSI/HI 1.6-2000, but does not explicitly extend this requirement to measured speed, flow, and input power, which are the variables necessary to calculate EF. Cal. Code Regs. section1604, subd. (g).

34 PG&E developed curves A, B, and C based data from an exercise by ADM Associates, Inc. in 2002, EVALUATION OF YEAR 2001 SUMMER INITIATIVES POOL PUMP PROGRAM and contractor input. However, the actual data for the curves are not contained in the ADM report (the ADM report can be found at www.calmac.org/publications/SI_Pool_Pump.pdf ; Last accessed April 4, 2016). Curves A and B are first formally mentioned in a subsequent report by PG&E in Codes and Standards Enhancement Initiative for FY 2004. However, this report does not discuss the derivation of the curves. ( http://consensus.fsu.edu/FBC/Pool-Efficiency/CASE_Pool_Pump.pdf ; Last accessed April 29, 2016). In addition, section 4.1.2.1.3 of ANSI/APSP/ICC-15a-2013 describes curves A, B, and C as “approximately” representative of 2.0-inch, 1.5-inch, and 2.5-inch pipe, respectively

in Codes and Standards Enhancement Initiative for FY 2004. However, this report does not discuss the derivation of the curves. ( http://consensus.fsu.edu/FBC/Pool-Efficiency/CASE_Pool_Pump.pdf ; Last accessed April 29, 2016). In addition, section 4.1.2.1.3 of ANSI/APSP/ICC-15a-2013 describes curves A, B, and C as “approximately” representative of 2.0-inch, 1.5-inch, and 2.5-inch pipe, respectively.

Table III.3—Pump System Curve Formulas Curve Formula A Head (feet) = 0.0167 × Flow 2 (gpm) B Head (feet) = 0.050 × Flow 2 (gpm) C Head (feet) = 0.0082 × Flow 2 (gpm) The majority of programs reference and require reporting on each of curves A, B, and C; however, programs differ in the number of operating speeds that are required to be tested. For example, CA Title 20 requires manufacturers to report all applicable quantities 35 on each curve at maximum speed only for single-speed dedicated-purpose pool pumps and at both maximum and minimum speeds for two-speed, multi-speed, and variable-speed dedicated-purpose pool pumps. Cal. Code Regs. section1604, subd. (g). Conversely, ANSI/APSP/ICC-15a-2013 requires testing at maximum speed for single-speed pumps; all available speeds for multi-speed pumps (including two-speed pumps); and maximum, minimum, half, and most efficient speed for variable-speed dedicated-purpose pool pumps. 36 The load points specified by each program are summarized in Table III.4.

35 CA Title 20 requires reporting of motor nominal speed (rpm), flow (gpm), power (W and volt amps (VA)), EF (gal/Wh). Cal. Code Regs. section 1606, subd. (a).

36 Sections 4.1.2.1.4-4.1.2.1.6 of ANSI/APSP/ICC-15a-2013

and maximum, minimum, half, and most efficient speed for variable-speed dedicated-purpose pool pumps. 36 The load points specified by each program are summarized in Table III.4.

35 CA Title 20 requires reporting of motor nominal speed (rpm), flow (gpm), power (W and volt amps (VA)), EF (gal/Wh). Cal. Code Regs. section 1606, subd. (a).

36 Sections 4.1.2.1.4-4.1.2.1.6 of ANSI/APSP/ICC-15a-2013.

Table III.4—Summary of Load Points Required by CA Title 20, ANSI/APSP/ICC-15a-2013, ENERGY STAR, and CEE Pump speed(s) CA title 20 ANSI/APSP/ICC-15a-2013 ENERGY STAR CEE Single-speed Max Speed on Curves A, B, & C Max Speed on Curves A, B, & C Max Speed on Curves A, B, & C N/A.* Two-speed Max and Min Speed on Curves A, B, & C Max and Half Speed on Curves A, B, & C Max and Half Speed on Curves A, B, & C Max and Half Speed on Curve A. Multi-speed Max and Min Speed on Curves A, B, & C All Available Speed on Curves A, B, & C All Available Speed on Curves A, B, & C Max and Half Speed on Curve A. Variable-speed Max and Min Speed on Curves A, B, & C Max, Min, Half, and Most Efficient Speed on Curves A, B, & C Max, Min, and Most Efficient Speed on Curves A, B, & C Max, Half, and Most Efficient Speed on Curve A. * CEE requires applicable pool pumps to meet an EF requirement at both a high and low speed and, therefore, single-speed pool pumps are not eligible for CEE qualification. In addition to requiring measurement and reporting of DPPP performance characteristics, CA Title 20, 37 APSP/ANSI/ICC-15a-2013, 38 ENERGY STAR, 39 and CEE 40 contain prescriptive requirements regarding the design and characteristics of the DPPP motor and controls. Specifically, CA Title 20, ANSI/APSP/ICC-15a-2013, and ENERGY STAR all require that DPPP motors must:

37 Cal. Code Regs. section 1605.3, subd. (g) and section 1604, subd. (g).

38 Sections 4.1.1, “Motors,” and 4.2, “Pump controllers” of ANSI/APSP/ICC-15a-2013.

39 ENERGY STAR Pool Pumps—Program Requirements Version 1.1

ts regarding the design and characteristics of the DPPP motor and controls. Specifically, CA Title 20, ANSI/APSP/ICC-15a-2013, and ENERGY STAR all require that DPPP motors must:

37 Cal. Code Regs. section 1605.3, subd. (g) and section 1604, subd. (g).

38 Sections 4.1.1, “Motors,” and 4.2, “Pump controllers” of ANSI/APSP/ICC-15a-2013.

39 ENERGY STAR Pool Pumps—Program Requirements Version 1.1. Available at https://www.energystar.gov/products/spec/pool_pumps_specification_version_1_0_pd .

40 Consortium for Energy Efficiency (CEE). High Efficiency Residential Swimming Pool Initiative: Pool Pump Control Specification . January 1, 2013. http://library.cee1.org/sites/default/files/library/9988/cee_residential_pool_pump_control_specification_29414.pdf .

(1) Have the capability of operating at two or more speeds, where the “low” speed has a rotation rate that is no more than one-half of the motor's maximum rotation rate, if the motor is 1 hp or greater;

(2) be operated with an applicable multi-speed pump control with a default circulation speed no more than one-half of the motor's maximum rotation rate and whose high speed override capability, if available, does not extend for a period exceeding 24 hours; and

(3) have their efficiency reported, as measured in accordance with the test method of the Institute of Electrical and Electronics Engineering (IEEE) 114-2001.

CA Title 20 also requires that DPPP motors not be split-phase or capacitor start-induction run-type motors. Cal. Code Regs. section 1605.3, subd. (g) and section 1604, subd. (g).

In addition to the testing and prescriptive design requirements, ENERGY STAR 41 and CEE 42 also specify performance requirements based on EF at specified speed points on curve A only. 43 The ENERGY STAR and CEE requirements are specified in Table III.5 and Table III.6, respectively. CA Title 20 44 and APSP/ANSI/ICC-15a-2013 do not currently have any minimum energy performance requirements ( i.e., these programs do not specify a minimum EF requirement)

irements, ENERGY STAR 41 and CEE 42 also specify performance requirements based on EF at specified speed points on curve A only. 43 The ENERGY STAR and CEE requirements are specified in Table III.5 and Table III.6, respectively. CA Title 20 44 and APSP/ANSI/ICC-15a-2013 do not currently have any minimum energy performance requirements ( i.e., these programs do not specify a minimum EF requirement).

41 ENERGY STAR Pool Pumps—Program Requirements Version 1.1. Available at https://www.energystar.gov/products/spec/pool_pumps_specification_version_1_0_pd .

42 Consortium for Energy Efficiency (CEE). High Efficiency Residential Swimming Pool Initiative: Pool Pump Specification. January 1, 2013. Available at: http://library.cee1.org/sites/default/files/library/9987/cee_residential_pool_pump_specification_90947.pdf .

43 DOE notes that, as acknowledged by Pentair during the DPPP Working Group meetings, while curve A is referenced in the CEE High Efficiency Residential Swimming Pool Initiative (see http://library.cee1.org/sites/default/files/library/9986/cee_res_swimmingpoolinitiative_07dec2012_pdf_10557.pdf ), an error may have been made in establishing the CEE performance levels and that CEE is aware that some data were generated using curve C, where curve A was intended, resulting in the error. (Docket No. EERE-2015-BT-STD-0008, Pentair, No. 38, p. 135)

44 Cal. Code Regs. section 1605.3, subd. (g) and section 1604, subd. (g).

Table III.5—Table ENERGY STAR Pool Pump Energy Factor Criteria at Pool Pump Performance Curve A * Pump sub-variety Speed setting Energy efficiency level gal/Wh Single-Speed Pump Single-Speed EF ≥3.80 Multi-Speed, Variable-Speed and Variable-Flow Pump Most Efficient Speed EF ≥3.80 * Although the ENERGY STAR test method requires the testing and reporting of EF and other DPPP performance metrics at curves A, B, and C at various speed points, the ENERGY STAR specification is only applied on curve A at a single speed point

tting Energy efficiency level gal/Wh Single-Speed Pump Single-Speed EF ≥3.80 Multi-Speed, Variable-Speed and Variable-Flow Pump Most Efficient Speed EF ≥3.80 * Although the ENERGY STAR test method requires the testing and reporting of EF and other DPPP per

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