Sections 429.140 through 429.158 provide enforcement procedures specific to the violations enumerated in § 429.102(c). These provisions explain the responsibilities of manufacturers, private labelers, distributors, contractors and dealers with respect to central air conditioners subject to regional standards; however, these provisions do not limit the responsibilities of parties otherwise subject to 10 CFR parts 429 and 430.

(a) Record retention. The following entities must maintain the specified records—(1) Contractors and dealers. (i) Contractors and dealers must retain the following records for at least 48 months from the date of installation of a central air conditioner in the states of Alabama, Arizona, Arkansas, California, Delaware, Florida, Georgia, Hawaii, Kentucky, Louisiana, Maryland, Mississippi, Nevada, New Mexico, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, or Virginia or in the District of Columbia:

(A) For split-system central air conditioner outdoor units: The manufacturer name, model number, serial number, location of installation (including street address, city, state, and zip code), date of installation, and party from whom the unit was purchased (including person's name, full address, and phone number); and

(B) For split-system central air conditioner indoor units: The manufacturer name, model number, location of installation (including street address, city, state, and zip code), date of installation, and party from whom the unit was purchased (including person's name, full address, and phone number).

(ii) Contractors and dealers must retain the following, additional records for at least 48 months from the date of installation of a central air conditioner in the states of Arizona, California, Nevada, and New Mexico:

(A) For single-package central air conditioners: The manufacturer name, model number, serial number, location of installation (including street address, city, state, and zip code), date of installation, and party from whom the unit was purchased (including person's name, full address, and phone number).

(B) [Reserved]

(2) Distributors. Beginning July 1, 2016, all distributors must retain the following records for no less than 54 months from the date of sale:

(i) For split-system central air conditioner outdoor units: The outdoor unit manufacturer, outdoor unit model number, outdoor unit serial number, date unit was purchased from manufacturer, party from whom the unit was purchased (including company or individual's name, full address, and phone number), date unit was sold to contractor or dealer, party to whom the unit was sold (including company or individual's name, full address, and phone number), and, if delivered, delivery address.

(ii) For single-package air conditioners: The manufacturer, model number, serial number, date unit was purchased from manufacturer, party from whom the unit was purchased (including company or individual's name, full address, and phone number), date unit was sold to a contractor or dealer, party to whom the unit was sold (including company or individual's name, full address, and phone number), and, if delivered, delivery address.

(3) Manufacturers and private labelers. All manufacturers and private labelers must retain the following records for no less than 60 months from the date of sale:

(i) For split system air conditioner outdoor units: The model number, serial number, date of manufacture, date of sale, and party to whom the unit was sold (including person's name, full address, and phone number);

(ii) For split system central air conditioner indoor units: The model number, date of manufacture, date of sale, and party to whom the unit was sold (including person's name, full address, and phone number); and

(iii) For single-package central air conditioners: The model number, serial number, date of manufacture, date of sale, and party to whom the unit was sold (including person's name, full address, and phone number).

(b) [Reserved]

(a) DOE must have reasonable belief a violation has occurred to request records specific to an on-going investigation of a violation of central air conditioner regional standards.

(b) Upon request, the manufacturer, private labeler, distributor, dealer, or contractor must provide to DOE the relevant records within 30 calendar days of the request.

(1) DOE, at its discretion, may grant additional time for records production if the party from whom records have been requested has made a good faith effort to produce records.

(2) To request additional time, the party from whom records have been requested must produce all records gathered in 30 days and provide to DOE a written explanation of the need for additional time with the requested date for completing the production of records.

(a) If DOE determines a party has committed a violation of regional standards, DOE will issue a Notice of Violation advising that party of DOE's determination.

(b) If, however, DOE determines a noncompliant installation occurred in only one instance, the noncompliant installation is remediated prior to DOE issuing a Notice of Violation, and the party has no history of prior violations, DOE will not issue such notice.

(c) If DOE does not find a violation of regional standards, DOE will notify the party under investigation.

(a) DOE will consider, inter alia, the following factors in determining if a person is a routine violator: Number of violations in current and past cases, length of time over which violations occurred, ratio of compliant to noncompliant installations or sales, percentage of employees committing violations, evidence of intent, evidence of training or education provided, and subsequent remedial actions.

(b) In the event that DOE determines a person to be a routine violator, DOE will issue a Notice of Finding of Routine Violation.

(c) In making a finding of Routine Violation, DOE will consider whether the Routine Violation was limited to a specific location. If DOE finds that the routine violation was so limited, DOE may, in its discretion, in the Notice of Finding of Routine Violation limit the prohibition on manufacturer and/or private labeler sales to a particular contractor or distribution location.

(a) Any person found to be a routine violator may, within 30 calendar days after the date of Notice of Finding of Routine Violation, request an administrative appeal to the Office of Hearings and Appeals.

(b) The appeal must present information rebutting the finding of violation(s).

(c) The Office of Hearings and Appeals will issue a decision on the appeal within 45 days of receipt of the appeal.

(d) A routine violator must file a Notice of Intent to Appeal with the Office of Hearings and Appeals within three business days of the date of the Notice of Finding of Routine Violation, serving a copy on the Office of the Assistant General Counsel for Enforcement to retain the ability to buy central air conditioners during the pendency of the appeal.

(a) A routine violator may be removed from DOE's list of routine violators through completion of remediation in accordance with the requirements in § 429.154.

(b) A routine violator that wants to remediate must contact the Office of the Assistant General Counsel for Enforcement via the point of contact listed in the Notice of Finding of Routine Violation and identify the distributor(s), manufacturer(s), or private labeler(s) from whom it wishes to buy compliant replacement product.

(c) DOE will contact the distributor(s), manufacturer(s), or private labeler(s) and authorize sale of central air conditioner units to the routine violator for purposes of remediation within 3 business days of receipt of the request for remediation. DOE will provide the manufacturer(s), distributor(s), and/or private labeler(s) with an official letter authorizing the sale of units for purposes of remediation.

(d) DOE will contact routine violators that requested units for remediation within 30 days of sending the official letter to the manufacturer(s), distributor(s), and/or private labeler(s) to determine the status of the remediation.

(e) If remediation is successfully completed, DOE will issue a Notice indicating a person is no longer considered to be a routine violator. The Notice will be issued no more than 30 days after DOE has received documentation demonstrating that remediation is complete.

(a) Any party found to be in violation of the regional standards may remediate by replacing the noncompliant unit at cost to the violator; the end user cannot be charged for any costs of remediation.

(1) If a violator is unable to replace all noncompliant installations, then the Department may, in its discretion, consider the remediation complete if the violator satisfactorily demonstrates to the Department that it attempted to replace all noncompliant installations.

(2) The Department will scrutinize any “failed” attempts at replacement to ensure that there was indeed a good faith effort to complete remediation of the noncompliant unit.

(b) The violator must provide to DOE the serial number of any outdoor unit and/or indoor unit installed not in compliance with the applicable regional standard as well as the serial number(s) of the replacement unit(s) to be checked by the Department against warranty and other replacement claims.

(c) If the remediation is approved by the Department, then DOE will issue a Notice of Remediation and the violation will not count towards a finding of “routine violator”.

(a) In accordance with § 429.102, paragraphs (a)(10) and (c), manufacturers and private labelers are prohibited from selling central air conditioners and heat pumps to a routine violator.

(1) To avoid financial penalties, manufacturers and/or private labelers must cease sales to a routine violator within 3 business days from the date of issuance of a Notice of Finding of Routine Violation.

(2) If a Routine Violator files a Notice of Intent to Appeal pursuant to § 429.150, then a manufacturer and/or private labeler may assume the risk of selling central air conditioners to the Routine Violator during the pendency of the appeal.

(3) If the appeal of the Finding of Routine Violator is denied, then the manufacturer and/or private labeler may be fined in accordance with § 429.120, for sale of any units to a routine violator during the pendency of the appeal that do not meet the applicable regional standard.

(b) If a manufacturer and/or private labeler has knowledge of routine violation, then the manufacturer can be held liable for all sales that occurred after the date the manufacturer had knowledge of the routine violation. However, if the manufacturer and/or private labeler reports its suspicion of a routine violation to DOE within 15 days of receipt of such knowledge, then it will not be liable for product sold to the suspected routine violator prior to reporting the routine violation to DOE.

(a) If DOE determines a model of outdoor unit fails to meet the applicable regional standard(s) when tested in a combination certified by the same manufacturer, then the outdoor unit basic model will be deemed noncompliant with the regional standard(s). In accordance with § 429.102(a)(10), the outdoor unit manufacturer and/or private labeler is liable for distribution of noncompliant units in commerce.

(b) If DOE determines a combination fails to meet the applicable regional standard(s) when tested in a combination certified by a manufacturer other than the outdoor unit manufacturer (e.g., ICM), then that combination is deemed noncompliant with the regional standard(s). In accordance with § 429.102(a)(10), the certifying manufacturer is liable for distribution of noncompliant units in commerce.

(c) All such units manufactured and distributed in commerce are presumed to have been installed in a region where they would not comply with the applicable energy conservation standard; however, a manufacturer and/or private labeler may demonstrate through installer records that individual units were installed in a region where the unit is compliant with the applicable standards.

This subpart describes the enforcement authority of DOE to ensure compliance with the conservation standards and regulations.

(a) Each of the following actions is prohibited:

(1) Failure of a manufacturer to provide, maintain, permit access to, or copying of records required to be supplied under the Act and this part or failure to make reports or provide other information required to be supplied under the Act and this part, including but not limited to failure to properly certify covered products and covered equipment in accordance with § 429.12 and §§ 429.14 through 429.66;

(2) Failure to test any covered product or covered equipment subject to an applicable energy conservation standard in conformance with the applicable test requirements prescribed in 10 CFR parts 430 or 431;

(3) Deliberate use of controls or features in a covered product or covered equipment to circumvent the requirements of a test procedure and produce test results that are unrepresentative of a product's energy or water consumption if measured pursuant to DOE's required test procedure;

(4) Failure of a manufacturer to supply at the manufacturer's expense a requested number of covered products or covered equipment to a designated test laboratory in accordance with a test notice issued by DOE;

(5) Failure of a manufacturer to permit a DOE representative to observe any testing required by the Act and this part and inspect the results of such testing;

(6) Distribution in commerce by a manufacturer or private labeler of any new covered product or covered equipment that is not in compliance with an applicable energy conservation standard prescribed under the Act;

(7) Distribution in commerce by a manufacturer or private labeler of a basic model of covered product or covered equipment after a notice of noncompliance determination has been issued to the manufacturer or private labeler;

(8) Knowing misrepresentation by a manufacturer or private labeler by certifying an energy use or efficiency rating of any covered product or covered equipment distributed in commerce in a manner that is not supported by test data;

(9) For any manufacturer, distributor, retailer, or private labeler to distribute in commerce an adapter that—

(i) Is designed to allow an incandescent lamp that does not have a medium screw base to be installed into a fixture or lamp holder with a medium screw base socket; and

(ii) Is capable of being operated at a voltage range at least partially within 110 and 130 volts; or

(10) For any manufacturer or private labeler to knowingly sell a product to a distributor, contractor, or dealer with knowledge that the entity routinely violates any regional standard applicable to the product.

(b) When DOE has reason to believe that a manufacturer or private labeler has undertaken a prohibited act listed in paragraph (a) of this section, DOE may:

(1) Issue a notice of noncompliance determination;

(2) Impose additional certification testing requirements;

(3) Seek injunctive relief;

(4) Assess a civil penalty for knowing violations; or

(5) Undertake any combination of the above.

(c) Violations of regional standards. (1) It is a violation for a distributor to knowingly sell a product to a contractor or dealer with knowledge that the entity will sell and/or install the product in violation of any regional standard applicable to the product.

(2) It is a violation for a distributor to knowingly sell a product to a contractor or dealer with knowledge that the entity routinely violates any regional standard applicable to the product.

(3) It is a violation for a contractor or dealer to knowingly sell to and/or install for an end user a central air conditioner subject to regional standards with the knowledge that such product will be installed in violation of any regional standard applicable to the product.

(4) A “product installed in violation” includes:

(i) A complete central air conditioning system that is not certified as a complete system that meets the applicable standard. Combinations that were previously validly certified may be installed after the manufacturer has discontinued the combination, provided all combinations within the basic model, including for single-split-system AC with single-stage or two-stage compressor at least one coil-only combination as specified in paragraph (a)(1) of this section, comply with the regional standard applicable at the time of installation.

(ii) An outdoor unit with no match (i.e., that is not offered for sale with an indoor unit) that is not certified as part of a combination that meets the applicable standard.

(iii) An outdoor unit that is part of a certified combination rated less than the standard applicable in the region in which it is installed or, where applicable, an outdoor unit with no certified coil-only combination as specified in paragraph (a)(1) of this section that meets the standard applicable in the region in which it is installed.

(a) DOE may, at any time, test a basic model to assess whether the basic model is in compliance with the applicable energy conservation standard(s).

(b) For variable refrigerant flow multi-split air conditioners and heat pumps (other than air-cooled with rated cooling capacity less than 65,000 btu/h), when DOE may require that the manufacturer of a basic model ship at its expense any means of control for the basic model necessary for conducting testing in accordance with Appendix D1 to subpart F of 10 CFR part 431 of this subchapter.

(a) DOE may initiate an investigation that a basic model may not be compliant with an applicable conservation standard, certification requirement or other regulation at any time.

(b) DOE may, at any time, request any information relevant to determining compliance with any requirement under parts 429, 430 and 431, including the data underlying certification of a basic model. Such data may be used by DOE to make a determination of compliance or noncompliance with an applicable standard.

(a) General provisions. (1) If DOE has reason to believe that a basic model is not in compliance it may test for enforcement.

(2) For variable refrigerant flow multi-split air conditioners and heat pumps (other than air-cooled with rated cooling capacity less than 65,000 Btu/h), when determining compliance with an energy conservation standard based on IEER, DOE may test for enforcement if DOE has reason to believe that a basic model is not in compliance, has invalid certified operational settings for critical parameter values, or has an otherwise invalid certified rating.

(3) DOE will select and test units pursuant to paragraphs (c) and (e) of this section.

(4) Testing will be conducted at a laboratory accredited to the International Organization for Standardization (ISO)/International Electrotechnical Commission (IEC), “General requirements for the competence of testing and calibration laboratories,” ISO/IEC 17025:2005(E) (incorporated by reference; see § 429.4). If testing cannot be completed at an independent laboratory, DOE, at its discretion, may allow enforcement testing at a manufacturer's laboratory, so long as the lab is accredited to ISO/IEC 17025:2005(E) and DOE representatives witness the testing. In addition, for commercial packaged boilers with rated input greater than 5,000,000 Btu/h, DOE, at its discretion, may allow enforcement testing of a commissioned commercial packaged boiler in the location in which it was commissioned for use, pursuant to the test provisions at § 431.86(c) of this chapter, for which accreditation to ISO/IEC 17025:2005(E) would not be required.

(b) Test notice. (1) To obtain units for enforcement testing to determine compliance with an applicable standard, DOE will issue a test notice addressed to the manufacturer in accordance with the following requirements:

(i) DOE will send the test notice to the manufacturer's certifying official or other company official.

(ii) The test notice will specify the basic model that will be selected for testing, the method of selecting the test sample, the maximum size of the sample and the size of the initial test sample, the dates at which testing is scheduled to be started and completed, and the facility at which testing will be conducted. The test notice may also provide for situations in which the selected basic model is unavailable for testing and may include alternative models or basic models.

(iii) DOE will state in the test notice that it will select the units of a basic model to be tested from the manufacturer, from one or more distributors, and/or from one or more retailers. If any unit is selected from a distributor or retailer, the manufacturer shall make arrangements with the distributor or retailer for compensation for or replacement of any such units.

(iv) DOE may require in the test notice that the manufacturer of a basic model ship or cause to be shipped from a retailer or distributor at its expense the requested number of units of a basic model specified in such test notice to the testing laboratory specified in the test notice. The manufacturer shall ship the specified initial test unit(s) of the basic model to the testing laboratory within 5 working days from the time unit(s) are selected. For variable refrigerant flow multi-split air conditioners and heat pumps (other than air-cooled with rated cooling capacity less than 65,000 btu/h) the manufacturer shall also ship any means of control necessary for conducting testing in accordance with appendix D1 to subpart F of 10 CFR part 431 of this subchapter. The manufacturer may ship the means of control separately from the system(s) selected for testing.

(v) If DOE determines that the units identified are low-volume or built-to-order products, DOE will contact the manufacturer to develop a plan for enforcement testing in lieu of paragraphs (ii)-(iv) of this section.

(2) [Reserved]

(c) Test unit selection. (1) To select units for testing from a:

(i) Manufacturer's warehouse, distributor, or other facility affiliated with the manufacturer. DOE will select a batch sample at random in accordance with the provisions in paragraph (e) of this section and the conditions specified in the test notice. DOE will randomly select an initial test sample of units from the batch sample for testing in accordance with appendices A through C of this subpart. DOE will make a determination whether an alternative sample size will be used in accordance with the provisions in paragraph (e)(1)(iv) of this section.

(ii) Retailer or other facility not affiliated with the manufacturer. DOE will select an initial test sample of units at random that satisfies the minimum units necessary for testing in accordance with the provisions in appendices A through C of this subpart and the conditions specified in the test notice. Depending on the results of the testing, DOE may select additional units for testing from a retailer in accordance with appendices A through C of this subpart. If the full sample is not available from a retailer, DOE will make a determination whether an alternative sample size will be used in accordance with the provisions in paragraph (e)(1)(iv) of this section.

(iii) Previously commissioned commercial packaged boilers with a rated input greater than 5,000,000 Btu/h. DOE may test a sample of at least one unit in the location in which it was commissioned for use.

(2) Units tested in accordance with the applicable test procedure under this part by DOE or another Federal agency, pursuant to other provisions or programs, may count toward units in the test sample.

(3) The resulting test data shall constitute official test data for the basic model. Such test data will be used by DOE to make a determination of compliance or noncompliance if a sufficient number of tests have been conducted to satisfy the requirements of paragraph (e) of this section and appendices A through C of this subpart.

(d) Test unit preparation. (1) Prior to and during testing, a test unit selected for enforcement testing shall not be prepared, modified, or adjusted in any manner unless such preparation, modification, or adjustment is allowed by the applicable DOE test procedure. One test shall be conducted for each test unit in accordance with the applicable test procedures prescribed in parts 430 and 431.

(2) No quality control, testing or assembly procedures shall be performed on a test unit, or any parts and subassemblies thereof, that is not performed during the production and assembly of all other units included in the basic model.

(3) A test unit shall be considered defective if such unit is inoperative or is found to be in noncompliance due to failure of the unit to operate according to the manufacturer's design and operating instructions. Defective units, including those damaged due to shipping or handling, shall be reported immediately to DOE. DOE may authorize testing of an additional unit on a case-by-case basis.

(e) Basic model compliance. DOE will evaluate whether a basic model complies with the applicable energy conservation standard(s) based on testing conducted in accordance with the applicable test procedures specified in parts 430 and 431 of this chapter, and with the following statistical sampling procedures:

(1) For products with applicable energy conservation standard(s) in § 430.32 of this chapter, and commercial prerinse spray valves, illuminated exit signs, traffic signal modules and pedestrian modules, commercial clothes washers, dedicated-purpose pool pumps, circulator pumps, and metal halide lamp ballasts, DOE will use a sample size of not more than 21 units and follow the sampling plans in appendix A of this subpart (Sampling for Enforcement Testing of Covered Consumer Products and Certain High-Volume Commercial Equipment).

(2) For automatic commercial ice makers; commercial refrigerators, freezers, and refrigerator-freezers; refrigerated bottled or canned vending machines; commercial air conditioners and heat pumps; commercial packaged boilers; commercial warm air furnaces; commercial water heating equipment; and walk-in cooler and walk-in freezer doors, panels, and refrigeration systems, DOE will use an initial sample size of not more than four units and follow the sampling plans in appendix B to this subpart.

(3) If fewer than four units of a basic model are available for testing (under paragraphs (e)(1) or (2) of this section) when the manufacturer receives the notice, then:

(i) DOE will test the available unit(s); or

(ii) If one or more other units of the basic model are expected to become available within 30 calendar days, DOE may instead, at its discretion, test either:

(A) The available unit(s) and one or more of the other units that subsequently become available (up to a maximum of four); or

(B) Up to four of the other units that subsequently become available.

(4) For distribution transformers, DOE will use an initial sample size of not more than five units and follow the sampling plans in appendix C of this subpart (Sampling Plan for Enforcement Testing of Distribution Transformers). If fewer than five units of a basic model are available for testing when the manufacturer receives the test notice, then:

(i) DOE will test the available unit(s); or

(ii) If one or more other units of the basic model are expected to become available within 30 calendar days, DOE may instead, at its discretion, test either:

(A) The available unit(s) and one or more of the other units that subsequently become available (up to a maximum of five); or

(B) Up to five of the other units that subsequently become available.

(5) For pumps subject to the test procedures specified in § 431.464(a) of this chapter, DOE will use an initial sample size of not more than four units and will determine compliance based on the arithmetic mean of the sample.

(6) For uninterruptible power supplies, if a basic model is certified for compliance to the applicable energy conservation standard(s) in § 430.32 of this chapter according to the sampling plan in § 429.39(a)(2)(iv)(A) of this chapter, DOE will use a sample size of not more than 21 units and follow the sampling plan in appendix A of this subpart (Sampling for Enforcement Testing of Covered Consumer Products and Certain High-Volume Commercial Equipment). If a basic model is certified for compliance to the applicable energy conservation standard(s) in § 430.32 of this chapter according to the sampling plan in § 429.39(a)(2)(iv)(B) of this chapter, DOE will use a sample size of at least one unit and follow the sampling plan in appendix D of this subpart (Sampling for Enforcement Testing of Uninterruptible Power Supplies).

(7) Notwithstanding paragraphs (e)(1) through (6) of this section, if testing of the available or subsequently available units of a basic model would be impractical, as for example when a basic model has unusual testing requirements or has limited production, DOE may in its discretion decide to base the determination of compliance on the testing of fewer than the otherwise required number of units.

(8) When DOE makes a determination in accordance with paragraph (e)(7) of this section to test less than the number of units specified in paragraphs (e)(1) through (6) of this section, DOE will base the compliance determination on the results of such testing in accordance with appendix B of this subpart (Sampling Plan for Enforcement Testing of Covered Equipment and Certain Low-Volume Covered Products) using a sample size (n1) equal to the number of units tested.

(9) For the purposes of this section, available units are those that are available for distribution in commerce within the United States.

(a) In the event that DOE determines a basic model is noncompliant with an applicable energy conservation standard, or if a manufacturer or private labeler determines a basic model to be in noncompliance, DOE may issue a notice of noncompliance determination to the manufacturer or private labeler. This notice of noncompliance determination will notify the manufacturer or private labeler of its obligation to:

(1) Immediately cease distribution in commerce of the basic model;

(2) Give immediate written notification of the determination of noncompliance to all persons to whom the manufacturer has distributed units of the basic model manufactured since the date of the last determination of compliance; and

(3) Provide DOE, within 30 calendar days of the request, records, reports and other documentation pertaining to the acquisition, ordering, storage, shipment, or sale of a basic model determined to be in noncompliance.

(b) In the event that DOE determines a manufacturer has failed to comply with an applicable certification requirement with respect to a particular basic model, DOE may issue a notice of noncompliance determination to the manufacturer or private labeler. This notice of noncompliance determination will notify the manufacturer or private labeler of its obligation to:

(1) Immediately cease distribution in commerce of the basic model;

(2) Immediately comply with the applicable certification requirement; and/or

(3) Provide DOE within 30 days of the request, records, reports and other documentation pertaining to the acquisition, ordering, storage, shipment, or sale of the basic model.

(c) If a manufacturer or private labeler fails to comply with the required actions in the notice of noncompliance determination as set forth in paragraphs (a) or (b) of this section, the General Counsel (or delegee) may seek, among other remedies, injunctive action and civil penalties, where appropriate.

(d) The manufacturer may modify a basic model determined to be noncompliant with an applicable energy conservation standard in such manner as to make it comply with the applicable standard. Such modified basic model shall then be treated as a new basic model and must be certified in accordance with the provisions of this part; except that in addition to satisfying all requirements of this part, any models within the basic model must be assigned new model numbers and the manufacturer shall also maintain, and provide upon request to DOE, records that demonstrate that modifications have been made to all units of the new basic model prior to distribution in commerce.

Pursuant to § 429.102(b)(2), if DOE determines that independent, third-party testing is necessary to ensure a manufacturer's compliance with the rules of this part, part 430, or part 431, a manufacturer must base its certification of a basic model under subpart B of this part on independent, third-party laboratory testing.

If DOE has reason to seek an injunction under the Act:

(a) DOE will notify the manufacturer, private labeler or any other person as required, of the prohibited act at issue and DOE's intent to seek a judicial order enjoining the prohibited act unless the manufacturer, private labeler or other person, delivers to DOE within 15 calendar days a corrective action and compliance plan, satisfactory to DOE, of the steps it will take to ensure that the prohibited act ceases. DOE will monitor the implementation of such plan.

(b) If the manufacturer, private labeler or any other person as required, fails to cease engaging in the prohibited act or fails to provide a satisfactory corrective action and compliance plan, DOE may seek an injunction.

Any person who knowingly violates any provision of § 429.102(a) may be subject to assessment of a civil penalty of no more than $560 for each violation. As to § 429.102(a)(1) with respect to failure to certify, and as to § 429.102(a)(2), (5) through (9), each unit of a covered product or covered equipment distributed in violation of such paragraph shall constitute a separate violation. For violations of § 429.102(a)(1), (3), and (4), each day of noncompliance shall constitute a separate violation for each basic model at issue.

(a) The General Counsel (or delegee) shall provide notice of any proposed civil penalty.

(b) The notice of proposed penalty shall:

(1) Include the amount of the proposed penalty;

(2) Include a statement of the material facts constituting the alleged violation; and

(3) Inform the person of the opportunity to elect in writing within 30 calendar days of receipt of the notice to have the procedures of § 429.128 (in lieu of those of § 429.126) apply with respect to the penalty.

(a) In responding to a notice of proposed civil penalty, the respondent may request:

(1) An administrative hearing before an Administrative Law Judge (ALJ) under § 429.126 of this part; or

(2) Elect to have the procedures of § 429.128 apply.

(b) Any election to have the procedures of § 429.128 apply may not be revoked except with the consent of the General Counsel (or delegee).

(c) If the respondent fails to respond to a notice issued under § 429.120 or otherwise fails to indicate its election of procedures, DOE shall refer the civil penalty action to an ALJ for a hearing under § 429.126.

(a) When elected pursuant to § 429.124, DOE shall refer a civil penalty action brought under § 429.122 of this part to an ALJ, who shall afford the respondent an opportunity for an agency hearing on the record.

(b) After consideration of all matters of record in the proceeding, the ALJ will issue a recommended decision, if appropriate, recommending a civil penalty. The decision will include a statement of the findings and conclusions, and the reasons therefore, on all material issues of fact, law, and discretion.

(c)(1) The General Counsel (or delegee) shall adopt, modify, or set aside the conclusions of law or discretion contained in the ALJ's recommended decision and shall set forth a final order assessing a civil penalty. The General Counsel (or delegee) shall include in the final order the ALJ's findings of fact and the reasons for the final agency actions.

(2) Any person against whom a penalty is assessed under this section may, within 60 calendar days after the date of the final order assessing such penalty, institute an action in the United States Court of Appeals for the appropriate judicial circuit for judicial review of such order in accordance with chapter 7 of title 5, United States Code. The court shall have jurisdiction to enter a judgment affirming, modifying, or setting aside in whole or in part, the final order, or the court may remand the proceeding to the Department for such further action as the court may direct.

(a) If the respondent elects to forgo an agency hearing pursuant to § 429.124, the General Counsel (or delegee) shall issue an order assessing the civil penalty proposed in the notice of proposed penalty under § 429.122, 30 calendar days after the respondent's receipt of the notice of proposed penalty.

(b) If within 60 calendar days of receiving the assessment order in paragraph (a) of this section the respondent does not pay the civil penalty amount, DOE shall institute an action in the appropriate United States District Court for an order affirming the assessment of the civil penalty. The court shall have authority to review de novo the law and the facts involved and shall have jurisdiction to enter a judgment enforcing, modifying, and enforcing as so modified, or setting aside in whole or in part, such assessment.

If any person fails to pay an assessment of a civil penalty after it has become a final and unappealable order under § 429.126 or after the appropriate District Court has entered final judgment in favor of the Department under § 429.128, the General Counsel (or delegee) shall institute an action to recover the amount of such penalty in any appropriate District Court of the United States. In such action, the validity and appropriateness of such final assessment order or judgment shall not be subject to review.

(a) DOE may compromise, modify, or remit, with or without conditions, any civil penalty (with leave of court if necessary).

(b) In exercising its authority under paragraph (a) of this section, DOE may consider the nature and seriousness of the violation, the efforts of the respondent to remedy the violation in a timely manner, and other factors as justice may require.

(c) DOE's authority to compromise, modify or remit a civil penalty may be exercised at any time prior to a final decision by the United States Court of Appeals if § 429.126 procedures are utilized, or prior to a final decision by the United States District Court, if § 429.128 procedures are utilized.

(d) Notwithstanding paragraph (a) of this section, DOE or the respondent may propose to settle the case. If a settlement is agreed to by the parties, the respondent is notified and the case is closed in accordance with the terms of the settlement.

(a) General. The following provisions apply to assessment and enforcement testing of the relevant products and equipment.

(b) Refrigerators, refrigerator-freezers, and freezers—(1) Verification of total refrigerated volume. The total refrigerated volume of the basic model will be measured pursuant to the test requirements of 10 CFR part 430 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of total refrigerated volume certified by the manufacturer. The certified total refrigerated volume will be considered valid only if:

(i) The measurement is within two percent, or 0.5 cubic feet (0.2 cubic feet for compact products), whichever is greater, of the certified total refrigerated volume, or

(ii) The measurement is greater than the certified total refrigerated volume.

(A) If the certified total refrigerated volume is found to be valid, the certified adjusted total volume will be used as the basis for calculation of maximum allowed energy use for the basic model.

(B) If the certified total refrigerated volume is found to be invalid, the average measured adjusted total volume, rounded to the nearest 0.1 cubic foot, will serve as the basis for calculation of maximum allowed energy use for the tested basic model.

(2) Test for models with two compartments, each having its own user-operable temperature control. The test described in section 5.2(b) of the applicable test procedure for refrigerators or refrigerator-freezers in appendix A to subpart B of 10 CFR part 430 shall be used for all units of a tested basic model before DOE makes a determination of noncompliance with respect to the basic model.

(c) Clothes washers—(1) Determination of Remaining Moisture Content. These provisions address anomalous remaining moisture content (RMC) results that are not representative of a basic model's performance, as well as differences in RMC values that may result from DOE using a different test cloth lot than was used by the manufacturer for testing and certifying the basic model.

(i) When testing according to appendix J to subpart B of part 430:

(A) If the measured RMC value of a tested unit is equal to or lower than the certified RMC value of the basic model (expressed as a percentage), then the measured RMC value will be considered the tested unit's final RMC value and will be used as the basis for the calculation of per-cycle energy consumption for removal of moisture from the test load for that unit.

(B) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model but the difference between the measured and certified RMC values would not affect the unit's compliance with the applicable standards, then the measured RMC value will be considered the tested unit's final RMC value.

(C) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model and the difference between the measured and certified RMC values would affect the unit's compliance with the applicable standards, then:

(1) If DOE used the same test cloth lot that was used by the manufacturer for testing and certifying the basic model, then the measured RMC value will be considered the tested unit's final RMC value.

(2) If DOE used a different test cloth lot than was used by the manufacturer for testing and certifying the basic model, then:

(i) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model by more than three RMC percentage points, then a value three RMC percentage points less than the measured RMC value will be considered the tested unit's final RMC value.

(ii) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model, but by no more than three RMC percentage points, then the certified RMC value of the basic model will be considered the tested unit's final RMC value.

(ii) When testing according to appendix J2 to subpart B of part 430:

(A) The procedure for determining remaining moisture content (RMC) will be performed once in its entirety, pursuant to the test requirements of section 3.8 of appendix J2 to subpart B of part 430, for each unit tested.

(B) If the measured RMC value of a tested unit is equal to or lower than the certified RMC value of the basic model (expressed as a percentage), then the measured RMC value will be considered the tested unit's final RMC value and will be used as the basis for the calculation of per-cycle energy consumption for removal of moisture from the test load for that unit.

(C) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model but by no more than two RMC percentage points and the difference between the measured and certified RMC values would not affect the unit's compliance with the applicable standards, then the measured RMC value will be considered the tested unit's final RMC value.

(D) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model but by no more than two RMC percentage points and the difference between the measured and certified RMC values would affect the unit's compliance with the applicable standards, then:

(1) If DOE used the same test cloth lot that was used by the manufacturer for testing and certifying the basic model, then the measured RMC value will be considered the tested unit's final RMC value.

(2) If DOE used a different test cloth lot than was used by the manufacturer for testing and certifying the basic model, then the certified RMC value of the basic model would be considered the tested unit's final RMC value.

(E) If the measured RMC value of a tested unit is higher than the certified RMC value of the basic model by more than two RMC percentage points, then DOE will perform two replications of the RMC measurement procedure, each pursuant to the provisions of section 3.8.5 of appendix J2 to subpart B of part 430, for a total of three independent RMC measurements of the tested unit. The average of the three RMC measurements will be calculated.

(1) If the average of the three RMC measurements is equal to or lower than the certified RMC value of the basic model, then the average RMC value will be considered the tested unit's final RMC value.

(2) If the average of the three RMC measurements is higher than the certified RMC value of the basic model but the difference between the measured and certified RMC values would not affect the unit's compliance with the applicable standards, then the average RMC value will be considered the tested unit's final RMC value.

(3) If the average of the three RMC measurements is higher than the certified RMC value of the basic model and the difference between the measured and certified RMC values would affect the unit's compliance with the applicable standards, then DOE will apply paragraph (c)(1)(ii)(F) of this section.

(F) If the average of the three RMC measurements is higher than the certified RMC value of the basic model and the difference between the measured and certified RMC values would affect the unit's compliance with the applicable standards, then:

(1) If DOE used the same test cloth lot that was used by the manufacturer for testing and certifying the basic model, then the average RMC pursuant to paragraph (c)(1)(ii)(E) of this section will be considered the tested unit's final RMC value.

(2) If DOE used a different test cloth lot than was used by the manufacturer for testing and certifying the basic model, then:

(i) If the average RMC value pursuant to paragraph (c)(1)(ii)(D) of this section is higher than the certified valued of the basic model by more than three RMC percentage points, then a value three RMC percentage points less than the average RMC value will be considered the tested unit's final RMC value.

(ii) If the average RMC value pursuant to paragraph (c)(1)(ii)(D) of this section is higher than the certified RMC value of the basic model, but by no more than three RMC percentage points, then the certified RMC value of the basic model will be considered the tested unit's final RMC value.

(2) [Reserved]

(d) Residential Water Heaters and Residential-Duty Commercial Water Heaters—(1) Verification of first-hour rating and maximum GPM rating. The first-hour rating or maximum gallons per minute (GPM) rating of the basic model will be measured pursuant to the test requirements of 10 CFR part 430 for each unit tested. The mean of the measured values will be compared to the rated values of first-hour rating or maximum GPM rating as certified by the manufacturer. The certified rating will be considered valid only if the measurement is within five percent of the certified rating.

(i) If the rated value of first-hour rating or maximum GPM rating is found to be within 5 percent of the mean of the measured values, then the rated value will be used as the basis for determining the applicable draw pattern pursuant to the test requirements of 10 CFR part 430 for each unit tested.

(ii) If the rated value of first-hour rating or maximum GPM rating is found to vary more than 5 percent from the measured values, then the mean of the measured values will serve as the basis for determining the applicable draw pattern pursuant to the test requirements of 10 CFR part 430 for each unit tested.

(2) Verification of rated storage volume. The storage volume of the basic model will be measured pursuant to the test requirements of appendix E to subpart B of 10 CFR part 430 for each unit tested. The mean of the measured values will be compared to the rated storage volume as certified by the manufacturer. The rated value will be considered valid only if the measurement is within 3 percent of the certified rating.

(i) If the rated storage volume is found to be within 3 percent of the mean of the measured value of storage volume, then the rated value will be used as the basis for calculation of the required uniform energy factor for the basic model.

(ii) If the rated storage volume is found to vary more than 3 percent from the mean of the measured values, then the mean of the measured values will be used as the basis for calculation of the required uniform energy factor for the basic model.

(3) Verification of fuel input rate. The fuel input rate of each tested unit of the basic model will be measured pursuant to the test requirements of section 5.2.3 of 10 CFR part 430, subpart B, appendix E. The measured fuel input rate (either the measured fuel input rate for a single unit sample or the average of the measured fuel input rates for a multiple unit sample) will be compared to the rated input certified by the manufacturer. The certified rated input will be considered valid only if the measured fuel input rate is within ±2 percent of the certified rated input.

(i) If the certified rated input is found to be valid, then the certified rated input will be used to determine compliance with the associated energy conservation standard.

(ii) If the measured fuel input rate for gas-fired or oil-fired water heating products is not within ±2 percent of the certified rated input, the measured fuel input rate will be used to determine compliance with the associated energy conservation standard.

(4) Circulating water heaters. A storage tank for testing will be selected as described in paragraphs (d)(4)(i) and (ii) of this section. The effective storage volume of the circulating water heater determined in testing will be measured in accordance with appendix E to subpart B of 10 CFR part 430 with the storage tank that is used for testing.

(i) Electric heat pump circulating water heaters. For UEF and first-hour rating testing, electric heat pump circulating water heaters will be tested with a minimally-compliant electric storage water heater (as defined at § 430.2 of this chapter) that has a rated storage volume of between 25 and 35 gallons, and is in the low draw pattern, as determined in accordance with appendix E to subpart B of 10 CFR part 430 and the standards set at § 430.32(d) of this chapter. If the manufacturer certifies the specific model of electric storage water heater used for testing to determine the certified UEF and first-hour rating of the electric heat pump circulating water heater, that model of electric storage water heater will be used for testing. If this is not possible (such as if the electric storage water heater model is no longer available or has been discontinued), testing will be performed with an electric storage water heater that has a minimally-compliant UEF rating, in the low draw pattern, and a rated storage volume that is within ± 3 gallons of the rated storage volume of the electric storage water heater used to determine the certified ratings of the electric heat pump circulating water heater (but not less than 25 gallons and not greater than 35 gallons). If no such model is available, then testing will be performed with a minimally-compliant electric storage water heater that has a rated storage volume of between 25 and 35 gallons and is in the low draw pattern.

(ii) All other circulating water heaters. For UEF and first-hour rating testing, circulating water heaters are paired with unfired hot water storage tanks (“UFHWSTs”) that have certified storage volumes between 80 and 120 gallons and are at exactly the minimum thermal insulation standard, in terms of R-value, for UFHWSTs, as per the standards set at § 431.110(a) of this chapter. Testing will be performed as follows:

(A) If the manufacturer certifies the specific model of UFHWST used for testing to determine the certified UEF and first-hour rating of the circulating water heater, that model of UFHWST will be used for testing.

(B) If it is not possible to perform testing with the same model of UFHWST certified by the manufacturer, testing will be carried out with a different model of UFHWST accordingly:

(1) Testing will be performed with an UFHWST from the same manufacturer as the certified UFHWST, with the same certified storage volume as the certified UFHWST, and with a certified R-value that meets but does not exceed the standard set at § 431.110(a) of this chapter. If this is not possible,

(2) Testing will be performed with an UFHWST from a different manufacturer than the certified UFHWST, with the same certified storage volume as the certified UFHWST, and with a certified R-value that meets but does not exceed the standard set at § 431.110(a) of this chapter. If this is not possible,

(3) Testing will be performed with an UFHWST from the same manufacturer as the certified UFHWST, having a certified storage volume within ±5 gallons of the certified UFHWST, and with a certified R-value that meets but does not exceed the standard set at § 431.110(a) of this chapter. If this is not possible,

(4) Testing will be performed with an UFHWST from a different manufacturer than the certified UFHWST, having a certified storage volume within ±5 gallons of the certified UFHWST, and with a certified R-value that meets but does not exceed the standard set at § 431.110(a) of this chapter. If this is not possible,

(5) Testing will be performed with an UFHWST having a certified storage volume between 80 gallons and 120 gallons and with a certified R-value that meets but does not exceed the standard set at § 431.110(a) of this chapter.

(e) Packaged terminal air conditioners and packaged terminal heat pumps—(1) Verification of cooling capacity. The total cooling capacity of the basic model will be measured pursuant to the test requirements of 10 CFR part 431 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of cooling capacity certified by the manufacturer. The certified cooling capacity will be considered valid only if the average measured cooling capacity is within five percent of the certified cooling capacity.

(i) If the certified cooling capacity is found to be valid, that cooling capacity will be used as the basis for calculation of minimum allowed EER (and minimum allowed COP for PTHP models) for the basic model.

(ii) If the certified cooling capacity is found to be invalid, the average measured cooling capacity will serve as the basis for calculation of minimum allowed EER (and minimum allowed COP for PTHP models) for the tested basic model.

(2) [Reserved]

(f) Dehumidifiers—(1) Verification of capacity. The capacity will be measured pursuant to the test requirements of part 430 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of capacity certified by the manufacturer for the basic model. The certified capacity will be considered valid only if the measurement is within five percent, or 1.00 pint per day, whichever is greater, of the certified capacity.

(i) If the certified capacity is found to be valid, the certified capacity will be used as the basis for determining the minimum energy factor or integrated energy factor allowed for the basic model.

(ii) If the certified capacity is found to be invalid, the average measured capacity of the units in the sample will be used as the basis for determining the minimum energy factor or integrated energy factor allowed for the basic model.

(2) Verification of whole-home dehumidifier case volume. The case volume will be measured pursuant to the test requirements of part 430 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of case volume certified by the manufacturer for the basic model. The certified case volume will be considered valid only if the measurement is within two percent, or 0.2 cubic feet, whichever is greater, of the certified case volume.

(i) If the certified case volume is found to be valid, the certified case volume will be used as the basis for determining the minimum integrated energy factor allowed for the basic model.

(ii) If the certified case volume is found to be invalid, the average measured case volume of the units in the sample will be used as the basis for determining the minimum integrated energy factor allowed for the basic model.

(g) Commercial package air conditioning and heating equipment (excluding air-cooled equipment with a cooling capacity less than 65,000 Btu/h). Before May 15, 2025, the provisions in 10 CFR 429.134, revised as of January 1, 2024, are applicable. On and after May 15, 2025, the following provisions apply.

(1) Verification of cooling capacity. The cooling capacity of each tested unit of the basic model will be measured pursuant to the test requirements of appendix A or appendix A1 to subpart F of part 431. The mean of the cooling capacity measurement(s) will be used to determine the applicable standards for purposes of compliance.

(2) Specific components. For assessment and enforcement testing of models subject to energy conservation standards denominated in terms of IVEC and IVHE, if a basic model includes individual models with components listed at table 7 to § 429.43(a)(3)(vi)(A) and DOE is not able to obtain an individual model with the least number (which could be zero) of those components within an otherwise comparable model group (as defined in § 429.43(a)(3)(vi)(A)(1)), DOE may test any individual model within the otherwise comparable model group.

(3) Verification of cut-out and cut-in temperatures. For assessment and enforcement testing of models of commercial package air conditioning and heating equipment subject to energy conservation standards denominated in terms of IVHE, the cut-out and cut-in temperatures may be verified using the method in appendix H to AHRI 1340-2023 (incorporated by reference, see § 429.4). If this method is conducted, the cut-in and cut-out temperatures determined using this method will be used to calculate IVHE for purposes of compliance.

(h) Residential boilers—test protocols for functional verification of automatic means for adjusting water temperature. These tests are intended to verify the functionality of the design requirement that a boiler has an automatic means for adjusting water temperature for single-stage, two-stage, and modulating boilers. These test methods are intended to permit the functional testing of a range of control strategies used to fulfill this design requirement. Section 2, Definitions, and paragraph 6.1.a of appendix EE to subpart B of part 430 of this chapter apply for the purposes of this paragraph (h).

(1) Test protocol for all products other than single-stage products employing burner delay. This test is intended to verify whether an automatic means for adjusting water temperature other than burner delay produces an incremental change in water supply temperature in response to an incremental change in inferred heat load.

(i) Boiler setup—(A) Boiler installation. Boiler installation in the test room shall be in accordance with the setup and apparatus requirements of section 6 of appendix EE to subpart B of 10 CFR part 430.

(B) Establishing flow rate and temperature rise. Start the boiler without enabling the means for adjusting water temperature. Establish a water flow rate that allows for a water temperature rise of greater than or equal to 20 °F at maximum input rate.

(C) Temperature stabilization. Temperature stabilization is deemed to be obtained when the boiler supply water temperature does not vary by more than ±3 °F over a period of five minutes.

(D) Adjust the inferential load controller. (1) Adjust the boiler controls (in accordance with the I&O manual) to the default setting that allows for activation of the means for adjusting water temperature. For boiler controls that do not allow for control adjustment during active mode operation, terminate call for heat and adjust the inferential load controller in accordance with the I&O manual and then reinitiate call for heat.

(2) If the means for adjusting water temperature uses outdoor temperature reset, the maximum outdoor temperature setting (if equipped) should be set to a temperature high enough that the boiler operates continuously during the duration of this test (i.e., if the conditions in paragraph (h)(1)(ii)(A) of this section equal room ambient temperature, then the maximum outdoor temperature should be set at a temperature greater than the ambient air temperature during the test).

(ii) Establish low inferred load conditions at minimum boiler supply water temperature—(A) Establish low inferred load conditions. (1) Establish the inferred load conditions (simulated using a controlling parameter, such as outdoor temperature, thermostat patterns, or boiler cycling) so that the supply water temperature is maintained at the minimum supply water temperature prescribed by the boiler manufacturer's temperature reset control strategy found in the I&O manual.

(2) The minimum supply water temperature of the default temperature reset curve is usually provided in the I&O manual. If there is no recommended minimum supply water temperature, set the minimum supply water temperature equal to 20 °F less than the high supply water temperature specified in paragraph (h)(1)(iii)(A) of this section.

(B) Supply water temperature stabilization at low inferred load. (1) Maintain the call for heat until the boiler supply water temperature has stabilized. Temperature stabilization is deemed to be obtained when the boiler supply water temperature does not vary by more than ±3 °F over a period of five minutes. The duration of time required to stabilize the supply water, following the procedure in paragraph (h)(1)(ii)(A) of this section, is dependent on the reset strategy and may vary from model to model.

(2) Record the boiler supply water temperature while the temperature is stabilized.

(iii) Establish high inferred load conditions at maximum boiler supply water temperature—(A) Establish high inferred load conditions. Establish the inferred load conditions so that the supply water temperature is set to the maximum allowable supply water temperature as prescribed in the I&O manual, or if there is no recommendation, set to a temperature greater than 170 °F.

(B) Supply water temperature stabilization at high inferred load. (1) Maintain the call for heat until the boiler supply water temperature has stabilized. Temperature stabilization is deemed to be obtained when the boiler supply water temperature does not vary by more than ±3 °F over a period of five minutes. The duration of time required to stabilize the supply water, following the procedure in paragraph (h)(1)(iii)(A) of this section, is dependent on the reset strategy and may vary from model to model.

(2) Record the boiler supply water temperature while the temperature is stabilized.

(3) Terminate the call for heat.

(iv) [Reserved]

(2) Test protocol for single-stage products employing burner delay. This test will be used in place of paragraph (h)(1) of this section for products manufacturers have certified to DOE under § 429.18(b)(3) as employing a burner delay automatic means strategy. This test verifies whether the automatic means in single-stage boiler products establishes a burner delay upon a call for heat until the means has determined that the inferred heat load cannot be met by the residual heat of the water in the system.

(i) Boiler setup—(A) Boiler installation. Boiler installation in the test room shall be in accordance with the setup and apparatus requirements by section 6.0 of appendix EE to subpart B of 10 CFR part 430.

(B) Activation of controls. Adjust the boiler controls in accordance with the I&O manual at the default setting that allows for activation of the means for adjusting water temperature.

(C) Adjustment of water flow and temperature. The flow and temperature of inlet water to the boiler shall be capable of being adjusted manually.

(ii) Boiler heat-up—(A) Boiler start-up. Power up the boiler and initiate a call for heat.

(B) Adjustment of firing rate. Adjust the boiler's firing rate to within ±5% of its maximum rated input.

(C) Establishing flow rate and temperature rise. Adjust the water flow through the boiler to achieve a ΔT of 20 °F (±2 °F) or greater with an inlet water temperature equal to 140 °F (±2 °F).

(D) Terminate the call for heating. Terminate the call for heat, stop the flow of water through the boiler, and record the time at termination.

(iii) Verify burner delay—(A) Reinitiate call for heat. Within three (3) minutes of termination (paragraph (h)(2)(ii)(D) of this section) and without adjusting the inlet water flow rate or temperature as specified in paragraph (h)(2)(ii)(C) of this section, reinitiate the call for heat and water flow and record the time.

(B) Verify burner ignition. At 15-second intervals, record time and supply water temperature until the main burner ignites.

(C) Terminate the call for heat.

(iv) [Reserved]

(i) Pumps—(1) General purpose pumps. (i) The volume rate of flow (flow rate) at BEP and nominal speed of rotation of each tested unit of the basic model will be measured pursuant to the test requirements of § 431.464 of this chapter, where the value of volume rate of flow (flow rate) at BEP and nominal speed of rotation certified by the manufacturer will be treated as the expected BEP flow rate. The results of the measurement(s) will be compared to the value of volume rate of flow (flow rate) at BEP and nominal speed of rotation certified by the manufacturer. The certified volume rate of flow (flow rate) at BEP and nominal speed of rotation will be considered valid only if the measurement(s) (either the measured volume rate of flow (flow rate) at BEP and nominal speed of rotation for a single unit sample or the average of the measured flow rates for a multiple unit sample) is within five percent of the certified volume rate of flow (flow rate) at BEP and nominal speed of rotation.

(A) If the representative value of volume rate of flow (flow rate) at BEP and nominal speed of rotation is found to be valid, the measured volume rate of flow (flow rate) at BEP and nominal speed of rotation will be used in subsequent calculations of constant load pump energy rating (PERCL) and constant load pump energy index (PEICL) or variable load pump energy rating (PERVL) and variable load pump energy index (PEIVL) for that basic model.

(B) If the representative value of volume rate of flow (flow rate) at BEP and nominal speed of rotation is found to be invalid, the mean of all the measured volume rate of flow (flow rate) at BEP and nominal speed of rotation values determined from the tested unit(s) will serve as the new expected BEP flow rate and the unit(s) will be retested until such time as the measured rate of flow (flow rate) at BEP and nominal speed of rotation is within 5 percent of the expected BEP flow rate.

(ii) DOE will test each pump unit according to the test method specified by the manufacturer in the certification report submitted pursuant to § 429.59(b); if the model of pump unit was rated using an AEDM, DOE may use either a testing approach or calculation approach.

(2) Dedicated-purpose pool pumps. (i) The rated hydraulic horsepower of each tested unit of the basic model of dedicated-purpose pool pump will be measured pursuant to the test requirements of § 431.464(b) of this chapter and the result of the measurement(s) will be compared to the value of rated hydraulic horsepower certified by the manufacturer. The certified rated hydraulic horsepower will be considered valid only if the measurement(s) (either the measured rated hydraulic horsepower for a single unit sample or the average of the measured rated hydraulic horsepower values for a multiple unit sample) is within 5 percent of the certified rated hydraulic horsepower.

(A) If the representative value of rated hydraulic horsepower is found to be valid, the value of rated hydraulic horsepower certified by the manufacturer will be used to determine the standard level for that basic model.

(B) If the representative value of rated hydraulic horsepower is found to be invalid, the mean of all the measured rated hydraulic horsepower values determined from the tested unit(s) will be used to determine the standard level for that basic model.

(ii) To verify the self-priming capability of non-self-priming pool filter pumps and of self-priming pool filter pumps that are not certified with NSF/ANSI 50-2015 (incorporated by reference, see § 429.4) as self-priming, the vertical lift and true priming time of each tested unit of the basic model of self-priming or non-self-priming pool filter pump will be measured pursuant to the test requirements of § 431.464(b) of this chapter.

(A) For self-priming pool filter pumps that are not certified with NSF/ANSI 50-2015 as self-priming, at a vertical lift of 5.0 feet, the result of the true priming time measurement(s) will be compared to the value of true priming time certified by the manufacturer. The certified value of true priming time will be considered valid only if the measurement(s) (either the measured true priming time for a single unit sample or the average of true priming time values for a multiple unit sample) is within 5 percent of the certified value of true priming time.

(1) If the representative value of true priming time is found to be valid, the value of true priming time certified by the manufacturer will be used to determine the appropriate equipment class and standard level for that basic model.

(2) If the representative value of true priming time is found to be invalid, the mean of the values of true priming time determined from the tested unit(s) will be used to determine the appropriate equipment class and standard level for that basic model.

(B) For non-self-priming pool filter pumps, at a vertical lift of 5.0 feet, the result of the true priming time measurement(s) (either the measured true priming time for a single unit sample or the average of true priming time values, for a multiple unit sample) will be compared to the value of true priming time referenced in the definition of non-self-priming pool filter pump at § 431.462 (10.0 minutes).

(1) If the measurement(s) of true priming time are greater than 95 percent of the value of true priming time referenced in the definition of non-self-priming pool filter pump at § 431.462 with a vertical lift of 5.0 feet, the DPPP model will be considered a non-self-priming pool filter pump for the purposes of determining the appropriate equipment class and standard level for that basic model.

(2) If the conditions specified in paragraph (i)(2)(ii)(B)(1) of this section are not satisfied, then the DPPP model will be considered a self-priming pool filter pump for the purposes of determining the appropriate equipment class and standard level for that basic model.

(iii) To verify the maximum head of self-priming pool filter pump, non-self-priming pool filter pumps, and waterfall pumps, the maximum head of each tested unit of the basic model of self-priming pool filter pump, non-self-priming pool filter pump, or waterfall pump will be measured pursuant to the test requirements of § 431.464(b) of this chapter and the result of the measurement(s) will be compared to the value of maximum head certified by the manufacturer. The certified value of maximum head will be considered valid only if the measurement(s) (either the measured maximum head for a single unit sample or the average of the maximum head values for a multiple unit sample) is within 5 percent of the certified values of maximum head.

(A) If the representative value of maximum head is found to be valid, the value of maximum head certified by the manufacturer will be used to determine the appropriate equipment class and standard level for that basic model.

(B) If the representative value of maximum head is found to be invalid, the measured value(s) of maximum head determined from the tested unit(s) will be used to determine the appropriate equipment class and standard level for that basic model.

(iv) To verify that a DPPP model complies with the applicable freeze protection control design requirements, the initiation temperature, run-time, and speed of rotation of the default control configuration of each tested unit of the basic model of dedicated-purpose pool pump will be evaluated according to the procedure specified in paragraph (i)(2)(iv)(A) of this section:

(A)(1) Set up and configure the dedicated-purpose pool pump under test according to the manufacturer instructions, including any necessary initial priming, in a test apparatus as described in appendix A of HI 40.6-2014-B (incorporated by reference, see § 429.4), except that the ambient temperature registered by the freeze protection ambient temperature sensor will be able to be measured and controlled by, for example, exposing the freeze protection temperature sensor to a specific temperature by submerging the sensor in a water bath of known temperature, by adjusting the actual ambient air temperature of the test chamber and measuring the temperature at the freeze protection ambient temperature sensor location, or by other means that allows the ambient temperature registered by the freeze protection temperature sensor to be reliably simulated, varied, and measured. Do not adjust the default freeze protection control settings or enable the freeze protection control if it is shipped disabled.

(2) Activate power to the pump with the flow rate set to zero (i.e., the pump is energized but not circulating water). Set the ambient temperature to 42.0 ± 0.5 °F and allow the temperature to stabilize, where stability is determined in accordance with section 40.6.3.2.2 of HI 40.6-2014-B. After 5 minutes, decrease the temperature measured by the freeze protection temperature sensor by 1.0 ± 0.5 °F and allow the temperature to stabilize. After each reduction in ambient temperature and subsequent stabilization, record the DPPP rotating speed, if any, and freeze protection ambient temperature reading, where the “freeze protection ambient temperature reading” is representative of the temperature measured by the freeze protection ambient temperature sensor, which may be recorded by a variety of means depending on how the temperature is being simulated and controlled. If no flow is initiated, record zero rpm or no flow. Continue decreasing the temperature measured by the freeze protection temperature sensor by 1.0 ± 0.5 °F after 5.0 minutes of stable operation at the previous temperature reading until the pump freeze protection initiates water circulation or until the ambient temperature of 38.0 ± 0.5 °F has been evaluated (i.e., the end of the 5.0 minute interval of 38.0 °F), whichever occurs first.

(3) If and when the DPPP freeze protection controls initiate water circulation, increase the ambient temperature reading registered by the freeze protection temperature sensor to a temperature of 42.0 ± 0.5 °F and maintain that temperature for 60.0 minutes. Do not modify or interfere with the operation of the DPPP freeze protection operating cycle. After 60.0 minutes, record the freeze protection ambient temperature and rotating speed, if any, of the dedicated-purpose pool pump under test.

(B) If the dedicated-purpose pool pump initiates water circulation at a temperature greater than 40.0 °F; if the dedicated-purpose pool pump was still circulating water after 60.0 minutes of operation at 42.0 ± 0.5 °F; or if rotating speed measured at any point during the DPPP freeze protection control test in paragraph (i)(2)(iii)(A) of this section was greater than one-half of the maximum rotating speed of the DPPP model certified by the manufacturer, that DPPP model is deemed to not comply with the design requirement for freeze protection controls.

(C) If none of the conditions specified in paragraph (i)(2)(iv)(B) of this section are met, including if the DPPP freeze protection control does not initiate water circulation at all during the test, the dedicated-purpose pool pump under test is deemed compliant with the design requirement for freeze protection controls.

(3) Circulator pumps. (i) The flow rate at BEP and maximum speed of each tested unit of the basic model will be measured pursuant to the test requirements of § 431.464(c) of this chapter, where the value of flow rate at BEP and maximum speed certified by the manufacturer will be treated as the expected BEP flow rate at maximum speed. The resulting measurement(s) will be compared to the value of flow rate at BEP and maximum speed certified by the manufacturer. The certified flow rate at BEP and maximum speed will be considered valid only if the measurement (either the measured flow rate at BEP and maximum speed for a single unit sample or the average of the measured flow rates for a multiple unit sample) is within 5 percent of the certified flow rate at BEP and maximum speed.

(A) If the representative value of flow rate is found to be valid, the measured flow rate at BEP and maximum speed will be used in subsequent calculations of circulator energy rating (CER) and circulator energy index (CEI) for that basic model.

(B) If the representative value of flow rate at BEP and maximum speed is found to be invalid, the mean of all the measured values of flow rate at BEP and maximum speed determined from the tested unit(s) will serve as the new expected BEP flow rate and the unit(s) will be retested until such time as the measured flow rate at BEP and maximum speed is within 5 percent of the expected BEP flow rate.

(ii) The rated hydraulic horsepower of each tested unit of the basic model will be measured pursuant to the test requirements of § 431.464(c) of this chapter. The resulting measurement will be compared to the rated hydraulic horsepower certified by the manufacturer. The certified rated hydraulic horsepower will be considered valid only if the measurement (either the measured rated hydraulic horsepower for a single unit sample or the average of the measured rated hydraulic horsepower values for a multiple unit sample) is within 5 percent of the certified rated hydraulic horsepower.

(A) If the certified rated hydraulic horsepower is found to be valid, the certified rated hydraulic horsepower will be used as the basis for determining scope of applicability for that model.

(B) If the certified rated hydraulic horsepower is found to be invalid, the arithmetic mean of all the hydraulic horsepower values resulting from DOE's testing will be used as the basis for determining scope of applicability for that model.

(iii) DOE will test each circulator pump unit according to the control setting with which the unit was rated. If no control setting is specified and no controls were available, DOE will test using the full speed test. If no control setting is specified and a variety of controls are available, DOE will test using the test method for any one of the control varieties available on board.

(iv) DOE will test each circulator pump using the description and equation for the control curve with which it was rated, if available.

(j) Refrigerated bottled or canned beverage vending machines—(1) Verification of refrigerated volume. The refrigerated volume (V) of each tested unit of the basic model will be measured pursuant to the test requirements of 10 CFR 431.296. The results of the measurement(s) will be compared to the representative value of refrigerated volume certified by the manufacturer. The certified refrigerated volume will be considered valid only if the measurement(s) (either the measured refrigerated volume for a single unit sample or the average of the measured refrigerated volumes for a multiple unit sample) is within five percent of the certified refrigerated volume.

(i) If the representative value of refrigerated volume is found to be valid, the certified refrigerated volume will be used as the basis for calculation of maximum daily energy consumption for the basic model.

(ii) If the representative value of refrigerated volume is found to be invalid, the average measured refrigerated volume determined from the tested unit(s) will serve as the basis for calculation of maximum daily energy consumption for the tested basic model.

(2) Verification of surface area, transparent, and non-transparent areas. The percent transparent surface area on the front side of the basic model will be measured pursuant to these requirements for the purposes of determining whether a given basic model meets the definition of Class A or Combination A, as presented at 10 CFR 431.292. The transparent and non-transparent surface areas shall be determined on the front side of the beverage vending machine at the outermost surfaces of the beverage vending machine cabinet, from edge to edge, excluding any legs or other protrusions that extend beyond the dimensions of the primary cabinet. Determine the transparent and non-transparent areas on each side of a beverage vending machine as described in paragraphs (j)(2)(i) and (ii) of this section. For combination vending machines, disregard the surface area surrounding any refrigerated compartments that are not designed to be refrigerated (as demonstrated by the presence of temperature controls), whether or not it is transparent. Determine the percent transparent surface area on the front side of the beverage vending machine as a ratio of the measured transparent area on that side divided by the sum of the measured transparent and non-transparent areas, multiplying the result by 100.

(i) Determination of transparent area. Determine the total surface area that is transparent as the sum of all surface areas on the front side of a beverage vending machine that meet the definition of transparent at 10 CFR 431.292. When determining whether or not a particular wall segment is transparent, transparency should be determined for the aggregate performance of all the materials between the refrigerated volume and the ambient environment; the composite performance of all those materials in a particular wall segment must meet the definition of transparent for that area be treated as transparent.

(ii) Determination of non-transparent area. Determine the total surface area that is not transparent as the sum of all surface areas on the front side of a beverage vending machine that are not considered part of the transparent area, as determined in accordance with paragraph (j)(2)(i) of this section.

(k) Central air conditioners and heat pumps—(1) Verification of cooling capacity. The cooling capacity of each tested unit of the individual model (for single-package systems) or individual combination (for split systems) will be measured pursuant to the test requirements of § 430.23(m) of this chapter. The mean of the measurement(s) (either the measured cooling capacity for a single unit sample or the average of the measured cooling capacities for a multiple unit sample) will be used to determine the applicable standards for purposes of compliance.

(2) Verification of CD value. (i) For central air conditioners and heat pumps other than models of outdoor units with no match, if manufacturers certify that they did not conduct the optional tests to determine the Cc and/or Ch value for an individual model (for single-package systems) or individual combination (for split systems), as applicable, the default Cc and/or Ch value will be used as the basis for calculation of SEER or HSPF for each unit tested. If manufacturers certify that they conducted the optional tests to determine the Cc and/or Ch value for an individual model (for single-package systems) or individual combination (for split systems), as applicable, the Cc and/or Ch value will be measured pursuant to the test requirements of § 430.23(m) of this chapter for each unit tested and the result for each unit tested (either the tested value or the default value, as selected according to the criteria for the cyclic test in 10 CFR part 430, subpart B, appendix M, section 3.5e) used as the basis for calculation of SEER or HSPF for that unit.

(ii) For models of outdoor units with no match, DOE will use the default Cc and/or Ch value pursuant to 10 CFR part 430.

(l) Miscellaneous refrigeration products—(1) Verification of total refrigerated volume. For all miscellaneous refrigeration products, the total refrigerated volume of the basic model will be measured pursuant to the test requirements of part 430 of this chapter for each unit tested. The results of the measurement(s) will be averaged and compared to the value of total refrigerated volume certified by the manufacturer. The certified total refrigerated volume will be considered valid only if:

(i) The measurement is within two percent, or 0.5 cubic feet (0.2 cubic feet for products with total refrigerated volume less than 7.75 cubic feet (220 liters)), whichever is greater, of the certified total refrigerated volume; or

(ii) The measurement is greater than the certified total refrigerated volume.

(A) If the certified total refrigerated volume is found to be valid, the certified adjusted total volume will be used as the basis for calculating the maximum allowed energy use for the tested basic model.

(B) If the certified total refrigerated volume is found to be invalid, the average measured adjusted total volume, rounded to the nearest 0.1 cubic foot, will serve as the basis for calculating the maximum allowed energy use for the tested basic model.

(2) Test for models with two compartments, each having its own user-operable temperature control. The test described in section 5.2(b) of the applicable test procedure in appendix A to subpart B part 430 of this chapter shall be used for all units of a tested basic model before DOE makes a determination of noncompliance with respect to the basic model.

(m) Commercial packaged boilers—(1) Verification of fuel input rate. The fuel input rate of each tested unit will be measured pursuant to the test requirements of § 431.86 of this chapter. The results of the measurement(s) will be compared to the value of rated input certified by the manufacturer. The certified rated input will be considered valid only if the measurement(s) (either the measured fuel input rate for a single unit sample or the average of the measured fuel input rates for a multiple unit sample) is within two percent of the certified rated input.

(i) If the measured fuel input rate is within two-percent of the certified rated input, the certified rated input will serve as the basis for determination of the appropriate equipment class(es) and the mean measured fuel input rate will be used as the basis for calculation of combustion and/or thermal efficiency for the basic model.

(ii) If the measured fuel input rate for a gas-fired commercial packaged boiler is not within two-percent of the certified rated input, DOE will first attempt to increase or decrease the gas manifold pressure within the range specified in manufacturer's installation and operation manual shipped with the commercial packaged boiler being tested (or, if not provided in the manual, in supplemental instructions provided by the manufacturer pursuant to § 429.60(b)(4) of this chapter) to achieve the certified rated input (within two-percent). If the fuel input rate is still not within two-percent of the certified rated input, DOE will attempt to increase or decrease the gas inlet pressure within the range specified in manufacturer's installation and operation manual shipped with the commercial packaged boiler being tested (or, if not provided in the manual, in supplemental instructions provided by the manufacturer pursuant to § 429.60(b)(4)) to achieve the certified rated input (within two-percent). If the fuel input rate is still not within two-percent of the certified rated input, DOE will attempt to modify the gas inlet orifice if the unit is equipped with one. If the fuel input rate still is not within two percent of the certified rated input, the mean measured fuel input rate (either for a single unit sample or the average of the measured fuel input rates for a multiple unit sample) will serve as the basis for determination of the appropriate equipment class(es) and calculation of combustion and/or thermal efficiency for the basic model.

(iii) If the measured fuel input rate for an oil-fired commercial packaged boiler is not within two-percent of the certified rated input, the mean measured fuel input rate (either for a single unit sample or the average of the measured fuel input rates for a multiple unit sample) will serve as the basis for determination of the appropriate equipment class(es) and calculation of combustion and/or thermal efficiency for the basic model.

(2) Models capable of producing both hot water and steam. For a model of commercial packaged boiler that is capable of producing both hot water and steam, DOE may measure the thermal or combustion efficiency as applicable (see § 431.87 of this chapter) for steam and/or hot water modes. DOE will evaluate compliance based on the measured thermal or combustion efficiency in steam and hot water modes, independently.

(n) Commercial water heating equipment other than residential-duty commercial water heaters—(1) Verification of fuel input rate. The fuel input rate of each tested unit of the basic model will be measured pursuant to the test requirements of § 431.106 of this chapter. The measured fuel input rate (either the measured fuel input rate for a single unit sample or the average of the measured fuel input rates for a multiple unit sample) will be compared to the rated input certified by the manufacturer. The certified rated input will be considered valid only if the measured fuel input rate is within two percent of the certified rated input.

(i) If the certified rated input is found to be valid, then the certified rated input will serve as the basis for determination of the appropriate equipment class and calculation of the standby loss standard (as applicable).

(ii) If the measured fuel input rate for gas-fired commercial water heating equipment is not within two percent of the certified rated input, DOE will first attempt to increase or decrease the gas outlet pressure within 10 percent of the value specified on the nameplate of the model of commercial water heating equipment being tested to achieve the certified rated input (within 2 percent). If the fuel input rate is still not within two percent of the certified rated input, DOE will attempt to increase or decrease the gas supply pressure within the range specified on the nameplate of the model of commercial water heating equipment being tested. If the measured fuel input rate is still not within two percent of the certified rated input, DOE will attempt to modify the gas inlet orifice, if the unit is equipped with one. If the measured fuel input rate still is not within two percent of the certified rated input, the measured fuel input rate will serve as the basis for determination of the appropriate equipment class and calculation of the standby loss standard (as applicable).

(iii) If the measured fuel input rate for oil-fired commercial water heating equipment is not within two percent of the certified rated input, the measured fuel input rate will serve as the basis for determination of the appropriate equipment class and calculation of the standby loss standard (as applicable).

(2) [Reserved]

(o) Uninterruptible power supplies. (1) Determine the UPS architecture by performing the tests specified in the definitions of VI, VFD, and VFI in sections 2.28.1 through 2.28.3 of appendix Y to subpart B of 10 CFR part 430.

(2) [Reserved]

(p) Compressors—(1) Verification of full-load operating pressure. (i) The maximum full-flow operating pressure of each tested unit of the basic model will be measured pursuant to the test requirements of appendix A to subpart T of part 431 of this chapter, where 90 percent of the value of full-load operating pressure certified by the manufacturer will be the starting point of the test method prior to increasing discharge pressure. The measured maximum full-flow operating pressure (either the single measured value for a single unit sample or the mean of the measured maximum full-flow operating pressures for a multiple unit sample) will be compared to the certified rating for full-load operating pressure to determine if the certified rating is valid or not. The certified rating for full-load operating pressure will be considered valid only if the certified rating for full-load operating pressure is less than or equal to the measured maximum full-flow operating pressure and greater than or equal to the lesser of—

(A) 90 percent of the measured maximum full-flow operating pressure; or

(B) 10 psig less than the measured maximum full-flow operating pressure.

(ii) If the certified full-load operating pressure is found to be valid, then the certified value will be used as the full-load operating pressure and will be the basis for determination of full-load actual volume flow rate, pressure ratio at full-load operating pressure, specific power, and package isentropic efficiency.

(iii) If the certified full-load operating pressure is found to be invalid, then the measured maximum full-flow operating pressure will be used as the full-load operating pressure and will be the basis for determination of full-load actual volume flow rate, pressure ratio at full-load operating pressure, specific power, and package isentropic efficiency.

(2) Verification of full-load actual volume flow rate. The measured full-load actual volume flow rate will be measured, pursuant to the test requirements of appendix A to subpart T of part 431 of this chapter, at the full-load operating pressure determined in paragraph (p)(1) of this section. The certified full-load actual volume flow rate will be considered valid only if the measurement(s) (either the measured full-load actual volume flow rate for a single unit sample or the mean of the measured values for a multiple unit sample) are within the percentage of the certified full-load actual volume flow rate specified in Table 1 of this section:

(i) If the certified value of full-load actual volume flow rate is found to be valid, the full-load actual volume flow rate certified by the manufacturer will be used as the basis for determination of the applicable standard.

(ii) If the certified value of full-load actual volume flow rate is found to be invalid, the entire sample (one or multiple units) will be considered as failing the enforcement test.

(3) Ancillary equipment. Prior to testing each compressor, DOE will install any required ancillary equipment specified by the manufacturer in the certification report submitted pursuant to § 429.63(b).

(q) Walk-in coolers and walk-in freezers. Prior to October 31, 2023, the provisions in 10 CFR 429.134, revised as of January 1, 2022, are applicable. On and after October 31, 2023, the following provisions apply.(1) If DOE determines that a basic model of a panel, door, or refrigeration system for walk-in coolers or walk-in freezers fails to meet an applicable energy conservation standard, then the manufacturer of that basic model is responsible for the noncompliance. If DOE determines that a complete walk-in cooler or walk-in freezer or component thereof fails to meet an applicable energy conservation standard, then the manufacturer of that walk-in cooler or walk-in freezer is responsible for the noncompliance with the applicable standard, except that the manufacturer of a complete walk-in cooler or walk-in freezer is not responsible for the use of components that were certified and labeled (in accordance with DOE labeling requirements) as compliant by another party and later found to be noncompliant with the applicable standard(s).

(2) Verification of refrigeration system net capacity. The net capacity of the refrigeration system basic model will be measured pursuant to the test requirements of part 431, subpart R, appendix C of this chapter for each unit tested on and after October 31, 2023, but before the compliance date of revised energy conservation standards for walk-in cooler and walk-in freezer refrigeration systems. The net capacity of the refrigeration system basic model will be measured pursuant to the test requirements of part 431, subpart R, appendix C1 of this chapter for each unit tested on and after the compliance date of revised energy conservation standards for walk-in cooler and walk-in freezer refrigeration systems. The results of the measurement(s) will be averaged and compared to the value of net capacity certified by the manufacturer. The certified net capacity will be considered valid only if the average measured net capacity is within plus or minus five percent of the certified net capacity.

(3) Verification of door surface area. The surface area of a display door or non-display door basic model will be measured pursuant to the requirements of 10 CFR part 431, subpart R, appendix A for each unit tested. The results of the measurement(s) will be averaged and compared to the value of the surface area certified by the manufacturer. The certified surface area will be considered valid only if the average measured surface area is within plus or minus three percent of the certified surface area.

(i) If the certified surface area is found to be valid, the certified surface area will be used as the basis for calculating the maximum energy consumption (kWh/day) of the basic model.

(ii) If the certified surface area is found to be invalid, the average measured surface area will serve as the basis for calculating the maximum energy consumption (kWh/day) of the basic model.

(4) Verification of door electricity-consuming device power. For each basic model of walk-in cooler and walk-in freezer door, DOE will calculate the door's energy consumption using the input power listed on the nameplate of each electricity-consuming device shipped with the door. If an electricity-consuming device shipped with a walk-in door does not have a nameplate or the nameplate does not list the device's input power, then DOE will use the device's rated input power included in the door's certification report. If the door is not certified or if the certification does not include a rated input power for an electricity-consuming device shipped with a walk-in door, DOE will use the measured input power. DOE also may validate the power listed on the nameplate or the rated input power by measuring it when energized using a power supply that provides power within the allowable voltage range listed on the component nameplate or the door nameplate, whichever is available. If the measured input power is more than 10 percent higher than the input power listed on the nameplate or the rated input power, as appropriate, then the measured input power shall be used in the door's energy consumption calculation.

(i) For electricity-consuming devices with controls, the maximum input wattage observed while energizing the device and activating the control shall be considered the measured input power. For anti-sweat heaters that are controlled based on humidity levels, the control may be activated by increasing relative humidity in the region of the controls without damaging the sensor. For lighting fixtures that are controlled with motion sensors, the control may be activated by simulating motion in the vicinity of the sensor. Other kinds of controls may be activated based on the functions of their sensor.

(ii) [Reserved]

(r) Portable air conditioners. Verification of seasonally adjusted cooling capacity. The seasonally adjusted cooling capacity will be measured pursuant to the test requirements of 10 CFR part 430 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of seasonally adjusted cooling capacity certified by the manufacturer. The certified seasonally adjusted cooling capacity will be considered valid only if the average measured seasonally adjusted cooling capacity is within five percent of the certified seasonally adjusted cooling capacity.

(1) If the certified seasonally adjusted cooling capacity is found to be valid, the certified value will be used as the basis for determining the minimum allowed combined energy efficiency ratio for the basic model.

(2) If the certified seasonally adjusted cooling capacity is found to be invalid, the average measured seasonally adjusted cooling capacity will be used to determine the minimum allowed combined energy efficiency ratio for the basic model.

(s) Direct Expansion-Dedicated Outdoor Air Systems. (1) If a basic model includes individual models with components listed at table 1 to § 429.43(a)(3)(i)(A) and DOE is not able to obtain an individual model with the least number (which could be zero) of those components within an otherwise comparable model group (as defined in § 429.43(a)(3)(i)(A)(1)), DOE may test any individual model within the otherwise comparable model group.

(2) If the manufacturer certified testing in accordance with Option 1 using default VERS exhaust air transfer ratio (EATR) values or Option 2 using default VERS effectiveness and EATR values, DOE may determine the integrated seasonal moisture removal efficiency 2 (ISMRE2) and/or the integrated seasonal coefficient of performance 2 (ISCOP2) using the default values or by conducting testing to determine VERS performance according to the DOE test procedure in appendix B to subpart F of part 431 of this chapter (with the minimum purge angle and zero pressure differential between supply and return air).

(3) If the manufacturer certified testing in accordance with Option 1 using VERS exhaust air transfer ratio (EATR) values or Option 2 using VERS effectiveness and EATR values determined using an analysis tool certified in accordance with the DOE test procedure in appendix B to subpart F of part 431 of this chapter, DOE may conduct its own testing to determine VERS performance in accordance with the DOE test procedure in appendix B to subpart F of part 431 of this chapter.

(i) DOE would use the values of VERS performance certified to DOE (i.e. EATR, sensible effectiveness, and latent effectiveness) as the basis for determining the ISMRE2 and/or ISCOP2 of the basic model only if, for Option 1, the certified EATR is found to be no more than one percentage point less than the mean of the measured values (i.e. the difference between the measured EATR and the certified EATR is no more than 0.01), or for Option 2, all certified values of sensible effectiveness are found to be no greater than 105 percent of the mean of the measured values (i.e. the certified effectiveness divided by the measured effectiveness is no greater than 1.05), all certified values of latent effectiveness are found to be no greater than 107 percent of the mean of the measured values, and the certified EATR is found to be no more than one percentage point less than the mean of the measured values.

(ii) If any of the conditions in paragraph (s)(2)(i) of this section do not hold true, then the mean of the measured values will be used as the basis for determining the ISMRE2 and/or ISCOP2 of the basic model.

(t) Ceiling Fans—(1) Verification of blade span. DOE will measure the blade span and round the measurement pursuant to the test requirements of 10 CFR part 430 of this chapter for each unit tested. DOE will consider the represented blade span valid only if the rounded measurement(s) (either the rounded measured value for a single unit, or the mean of the rounded measured values for a multiple unit sample, rounded to the nearest inch) is the same as the represented blade span.

(i) If DOE determines that the represented blade span is valid, that blade span will be used as the basis for determining the product class and calculating the minimum allowable ceiling fan efficiency.

(ii) If DOE determines that the represented blade span is invalid, DOE will use the rounded measured blade span(s) as the basis for determining the product class, and calculating the minimum allowable ceiling fan efficiency.

(2) Verification of the distance between the ceiling and lowest point of fan blades. DOE will measure the distance between the ceiling and lowest point of the fan blades and round the measurement pursuant to the test requirements of 10 CFR part 430 of this chapter for each unit tested. DOE will consider the represented distance valid only if the rounded measurement(s) (either the measured value for a single unit, or the mean of the measured values for a multiple unit sample, rounded to the nearest quarter inch) are the same as the represented distance.

(i) If DOE determines that the represented distance is valid, that distance will be used as the basis for determining the product class.

(ii) If DOE determines that the represented distance is invalid, DOE will use the rounded measured distance(s) as the basis for determining the product class.

(3) Verification of blade revolutions per minute (RPM) measured at high speed. DOE will measure the blade RPM at high speed pursuant to the test requirements of 10 CFR part 430 of this chapter for each unit tested. DOE will consider the represented blade RPM measured at high speed valid only if the measurement(s) (either the measured value for a single unit, or the mean of the measured values for a multiple unit sample, rounded to the nearest RPM) are within 2 percent of the represented blade RPM at high speed.

(i) If DOE determines that the represented RPM is valid, that RPM will be used as the basis for determining the product class.

(ii) If DOE determines that the represented RPM is invalid, DOE will use the rounded measured RPM(s) as the basis for determining the product class.

(4) Verification of blade edge thickness. DOE will measure the blade edge thickness and round the measurement pursuant to the test requirements of 10 CFR part 430 for each unit tested. DOE will consider the represented blade edge thickness valid only if the measurement(s) (either the measured value for a single unit, or the mean of the measured values for a multiple unit sample, rounded to the nearest 0.01 inch) are the same as the represented blade edge thickness.

(i) If DOE determines that the represented blade edge thickness is valid, that blade edge thickness will be used for determining product class.

(ii) If DOE determines that the represented blade edge thickness is invalid, DOE will use the rounded measured blade edge thickness(es) as the basis for determining the product class.

(u) Battery chargers—verification of reported represented value obtained from testing in accordance with appendix Y1 of 10 CFR part 430 subpart B when using an external power supply. If the battery charger basic model requires the use of an external power supply (“EPS”), and the manufacturer reported EPS is no longer available on the market, then DOE will test the battery charger with any compatible EPS that is minimally compliant with DOE's energy conservation standards for EPSs as prescribed in § 430.32(w) of this subchapter and that meets the battery charger input power criteria.

(v) Variable refrigerant flow multi-split air conditioners and heat pumps (other than air-cooled with rated cooling capacity less than 65,000 btu/h). The following provisions apply for assessment and enforcement testing of models subject to standards in terms of IEER:

(1) Specific components. For each indoor unit model identified in the tested combination for which the model number certified in the STI does not fully specify the presence or absence of components listed at table 2 to 10 CFR 429.43(a)(3)(ii)(B), the following provision applies. If DOE is not able to obtain an individual model with the least number of those components, then DOE may test a system that includes any individual indoor unit model that has a model number consistent with the certified indoor unit model number.

(2) Manufacturer involvement in assessment or enforcement testing. A manufacturer's representative will be allowed to support commissioning and witness assessment and/or enforcement testing for variable refrigerant flow multi-split air conditioners and heat pumps, including during the controls verification procedures (CVPs) specified in paragraph (v)(3) of this section, with allowance for additional involvement as described in the following provisions.

(i) Manufacturer involvement in CVP. Control settings must be set by a member of the third-party laboratory consistent with the provisions in section 5.1 of appendix D1 to subpart F of 10 CFR part 431. Critical parameters must operate automatically from the system controls and must not be manually controlled or adjusted at any point by any party during the CVP.

(ii) Manufacturer involvement in heating tests and IEER cooling tests. All control settings other than critical parameters must be set by a member of the third-party laboratory consistent with the provisions of section 5.1 of appendix D1 to subpart F of 10 CFR part 431. In heating tests and IEER cooling tests, critical parameters may be manually controlled by a manufacturer's representative and initially set to their certified values as described in section 5.1 of appendix D1 to subpart F of 10 CFR part 431. During IEER cooling mode tests only, a manufacturer's representative may also make additional adjustments to the critical parameters as described in section 5.2 of appendix D1 to subpart F of 10 CFR part 431. Setting and adjustment of critical parameters by a manufacturer's representative must be monitored by third-party laboratory personnel using a service tool. Other than critical parameter adjustments made in accordance with section 5.3 of appendix D1 to subpart F of 10 CFR part 431, the manufacturer's representative must not make any other adjustments to the VRF multi-split system under test. If a manufacturer's representative is not present for testing, a member of the third-party laboratory must set and adjust critical parameters using the means of control provided by the manufacturer, as described in § 429.110(b)(1)(iv) for enforcement testing and § 429.104 for assessment testing.

(3) Controls Verification Procedure (CVP). This procedure validates the certified values of critical parameters for which positions may be manually set during the full- and part-load IEER cooling test conditions specified at appendix D1 to subpart F of 10 CFR part 431. The CVP will only be conducted for a single system.

(i) Conducting the CVP—The CVP will be conducted at all of the four IEER cooling test conditions as specified in appendix D1 to subpart F of 10 CFR part 431; the CVP is not conducted at any heating test conditions. The CVP will first be performed at the full-load cooling condition before being conducted at part-load cooling conditions and must be conducted per Appendix C of AHRI 1230-2021 (incorporated by reference, see § 429.4).

(ii) Validating critical parameters—At each load point, certified critical parameter values will be validated or invalidated according to Section C6 of AHRI 1230-2021 with the following amendments:

(A) The duration of the period used for validating certified critical parameter values must be whichever of the following is longer: three minutes, or the time period needed to obtain five sample readings while meeting the minimum data collection interval requirements of Table C2 of AHRI 1230-2021.

(B) If at least one measurement period with duration identified in paragraph (v)(3)(ii)(A) of this section exists before tOFF that has an average root-sum-square (“RSS”) points total (as defined in Section 3.27 of AHRI 1230-2021) over the measurement period that is less than or equal to 70 points, the certified critical parameter values are valid.

(C) If no measurement period with duration identified in paragraph (v)(3)(ii)(A) of this section exists before tOFF that has an average RSS points total over the measurement period that is less than or equal to 70 points, the certified critical parameter values are invalid.

(iii) Determining critical parameters for use in steady-state IEER cooling tests. If, following a CVP, IEER testing is conducted per appendix D1 to subpart F of 10 CFR part 431, the following provisions apply:

(A) Validated critical parameter settings. At each load point, if certified critical parameter values are found to be valid according to the results of the CVP, initially set critical parameters to their certified values for the IEER test at the corresponding full- or part-load cooling condition. Perform additional adjustments to critical parameters as described in section 5.2 of appendix D1 to subpart F of 10 CFR part 431.

(B) Invalidated critical parameter settings. At each load point, if certified critical parameter values identified pursuant to paragraph (v)(3) of this section are found to be invalid according to the results of the CVP, determine alternate critical parameter values for use in the corresponding IEER test (as specified in appendix D1 to subpart F of 10 CFR part 431) as follows:

(1) Select the CVP measurement period—this period must have duration determined per paragraph (v)(3)(ii)(A) of this section and must be the period where the RSS points total has a lower average value over the measurement period than over any other time period in the CVP of the same duration. If multiple periods exist with the same RSS points total, select the measurement period closest to but before the time that the first indoor unit switches to thermally inactive (denoted as “toff” in AHRI 1230-2021).

(2) Determine alternate critical parameters—calculate the average position for each critical parameter during the measurement period selected in paragraph (v)(3)(iii)(B)(1) of this section. When initially setting critical parameters per section 5.1 of appendix D1 to subpart F of 10 CFR part 431, instead of using the certified critical parameter values, use the alternate critical parameter values as control inputs. The same initial alternate critical parameter values must be used for all systems in the assessment/enforcement sample (though critical parameter adjustments as needed to achieve target capacity or sensible heat ratio (SHR) limits are made independently for each tested system, per paragraph (v)(3)(iii)(B)(3) of this section.

(3) For each system, determine whether critical parameter adjustments are needed to achieve the target capacity or SHR limit for an IEER cooling test. Perform critical parameter adjustments independently on each system as described in section 5.2 of appendix D1 to subpart F of 10 CFR part 431, with the following exceptions:

(i) Replace all references to “certified critical parameter values” with “alternate critical parameter values” as determined in paragraph (v)(3)(iii)(B) of this section.

(ii) Determine CPMax from a CVP conducted at full-load cooling conditions as the maximum value observed during the R2 period as described in Section C.4.4.2.3 of AHRI 1230-2021. If multiple components corresponding to a single parameter are present, determine CPMax at the point during the R2 period at which the average value across all components corresponding to that critical parameter is maximized.

(4) Break-in period. DOE will perform a compressor break-in period during assessment or enforcement testing using a duration specified by the manufacturer only if a break-in period duration is provided in the supplemental testing instructions.

(w) Automatic commercial ice makers—verification of harvest rate. The harvest rate will be measured pursuant to the test requirements of 10 CFR part 431 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of harvest rate certified by the manufacturer of the basic model. The certified harvest rate will be considered valid only if the average measured harvest rate is within five percent of the certified harvest rate.

(1) If the certified harvest rate is found to be valid, the certified harvest rate will be used as the basis for determining the maximum energy use and maximum condenser water use, if applicable, allowed for the basic model.

(2) If the certified harvest rate is found to be invalid, the average measured harvest rate of the units in the sample will be used as the basis for determining the maximum energy use and maximum condenser water use, if applicable, allowed for the basic model.

(x) Single package vertical air conditioners and heat pumps. The following provisions apply for assessment and enforcement testing of models subject to standards in terms of IEER.

(1) Verification of cooling capacity. The cooling capacity of each tested unit of the basic model will be measured pursuant to the test requirements of appendix G1 to subpart F of 10 CFR part 431. The mean of the measurement(s) will be used to determine the applicable standards for purposes of compliance.

(2) Specific components. If a basic model includes individual models with components listed at table 4 to § 429.43(a)(3)(iii)(A) and DOE is not able to obtain an individual model with the least number (which could be zero) of those components within an otherwise comparable model group (as defined in § 429.43(a)(3)(iii)(A)(1)), DOE may test any individual model within the otherwise comparable model group.

(3) Validation of outdoor ventilation airflow rate. The outdoor ventilation airflow rate in cubic feet per minute (“CFM”) of the basic model will be measured in accordance with ASHRAE 41.2-1987 and Section 6.4 of ASHRAE 37-2009 (both incorporated by reference, see § 429.4). All references to the inlet shall be determined to mean the outdoor air inlet.

(i) The outdoor ventilation airflow rate validation shall be conducted at the conditions specified in Table 3 of AHRI 390-2021 (incorporated by reference, see § 429.4), Full Load Standard Rating Capacity Test, Cooling, except for the following:

The outdoor ventilation airflow rate shall be determined at 0 in. H2O external static pressure with a tolerance of −0.00/+0.05 in. H2O.

(ii) When validating the outdoor ventilation airflow rate, the outdoor air inlet pressure shall be 0.00 in. H2O, with a tolerance of −0.00/+0.05 in. H2O when measured against the room ambient pressure.

(y) Air-cooled, three-phase, small commercial package air conditioning and heating equipment with a cooling capacity of less than 65,000 Btu/h and air-cooled, three-phase, variable refrigerant flow multi-split air conditioners and heat pumps with a cooling capacity of less than 65,000 Btu/h. The following provisions apply for assessment and enforcement testing of models subject to standards in terms of SEER2 and HSPF2 (as applicable).

(1) Verification of cooling capacity. The cooling capacity of each tested unit of the individual model (for single-package units) or individual combination (for split systems) will be measured pursuant to the test requirements of appendix F1 to subpart F of part 431. The mean of the cooling capacity measurement(s) (either the measured cooling capacity for a single unit sample or the average of the measured cooling capacities for a multiple unit sample) will be used to determine the applicable standards for purposes of compliance.

(2) Verification of CD value. (i) For models other than models of outdoor units with no match, if manufacturers certify that they did not conduct the optional tests to determine the C c and/or C h value for an individual model (for single-package systems) or individual combination (for split systems), as applicable, the default value of C c and/or C h will be used as the basis for calculation of SEER2 or HSPF2 for each unit tested. If manufacturers certify that they conducted the optional tests to determine the value of C c and/or C h for an individual model (for single-package systems) or individual combination (for split systems), as applicable, the value of C c and/or C h will be measured pursuant to the test requirements of appendix F1 to subpart F of part 431 for each unit tested. The result for each unit tested (either the tested value or the default value, as selected according to the criteria for the cyclic test in section 4 of appendix F1 to subpart F of part 431) will be used as the basis for calculation of SEER2 or HSPF2 for that unit.

(ii) For models of outdoor units with no match, DOE will use the default value of Cc and/or Ch specified in the test procedure in appendix F1 to subpart F of part 431.

(z) Dishwashers—(1) Determination of Most Energy-Intensive Cycle. For any dishwasher basic model that does not meet the specified cleaning index threshold at a given soil load, the most energy-intensive cycle will be determined through testing as specified in sections 4.1.1 and 5.2 of appendix C2 to subpart B of part 430.

(2) Detergent dosing requirement. For any dishwasher basic model certified in accordance with the test procedure at appendix C1 to subpart B of part 430 of this chapter, DOE will conduct enforcement testing using the detergent dosing requirement that was used by the manufacturer as the basis for certifying compliance with the applicable energy conservation standard, in accordance with the applicable test procedure and certification reporting requirements.

(aa) Computer room air conditioners. The following provisions apply for assessment and enforcement testing of models subject to energy conservation standards denominated in terms of NSenCOP.

(1) Verification of net sensible cooling capacity. The net sensible cooling capacity of each tested unit of the basic model will be measured pursuant to the test requirements of 10 CFR part 431, subpart F, appendix E1. The mean of the net sensible cooling capacity measurement(s) will be used to determine the applicable energy conservation standards for purposes of compliance.

(2) Specific components. If a basic model includes individual models with components listed at table 5 to § 429.43(a)(3)(iv)(A) and DOE is not able to obtain an individual model with the least number (which could be zero) of those components within an otherwise comparable model group (as defined in § 429.43(a)(3)(iv)(A)(1)), DOE may test any individual model within the otherwise comparable model group.

(bb) Room air conditioners. The cooling capacity will be measured pursuant to the test requirements of 10 CFR part 430 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of cooling capacity certified by the manufacturer for the basic model. The certified cooling capacity will be considered valid only if the measurement is within five percent of the certified cooling capacity.

(1) If the certified cooling capacity is found to be valid, the certified cooling capacity will be used as the basis for determining the minimum combined energy efficiency ratio allowed for the basic model.

(2) If the certified cooling capacity is found to be invalid, the average measured cooling capacity of the units in the sample will be used as the basis for determining the minimum combined energy efficiency ratio allowed for the basic model.

(cc) Pool heaters. Beginning on May 30, 2028:

(1) Verification of input capacity for gas-fired pool heaters. The input capacity of each tested unit will be measured pursuant to the test requirements of § 430.23(p) of this subchapter. The results of the measurement(s) will be compared to the represented value of input capacity certified by the manufacturer for the basic model. The certified input capacity will be considered valid only if the measurement(s) (either the measured input capacity for a single unit sample or the average of the measured input capacity for a multiple unit sample) is within two percent of the certified input capacity.

(i) If the representative value of input capacity is found to be valid, the certified input capacity will serve as the basis for determination of the applicable standard and the mean measured input capacity will be used as the basis for calculation of the integrated thermal efficiency standard for the basic model.

(ii) If the representative value of input capacity is not within two percent of the certified input capacity, DOE will first attempt to increase or decrease the gas pressure within the range specified in manufacturer's installation and operation manual shipped with the gas-fired pool heater being tested to achieve the certified input capacity (within two percent). If the input capacity is still not within two percent of the certified input capacity, DOE will attempt to modify the gas inlet orifice. If the input capacity still is not within two percent of the certified input capacity, the mean measured input capacity (either for a single unit sample or the average for a multiple unit sample) determined from the tested units will serve as the basis for calculation of the integrated thermal efficiency standard for the basic model.

(2) Verification of active electrical power for electric pool heaters. The active electrical power of each tested unit will be measured pursuant to the test requirements of § 430.23 of this subchapter. The results of the measurement(s) will be compared to the represented value of active electrical power city certified by the manufacturer for the basic model. The certified active electrical power will be considered valid only if the measurement(s) (either the measured active electrical power for a single unit sample or the average of the measured active electrical power for a multiple unit sample) is within five percent of the certified active electrical power.

(i) If the representative value of active electrical power is found to be valid, the certified active electrical power will serve as the basis for determination of the applicable standard and the mean measured active electrical power will be used as the basis for calculation of the integrated thermal efficiency standard for the basic model.

(ii) If the representative value of active electrical power is not within five percent of the certified active electrical power, the mean measured active electrical power (either for a single unit sample or the average for a multiple unit sample) determined from the tested units will serve as the basis for calculation of the integrated thermal efficiency standard for the basic model.

(dd) Water-Source Heat Pumps. The following provisions apply for assessment and enforcement testing of models subject to standards in terms of IEER and ACOP.

(1) Verification of Cooling Capacity. The cooling capacity of each tested unit of the basic model will be measured pursuant to the test requirements of appendix C1 to subpart F of 10 CFR part 431. The mean of the measurements will be used to determine the applicable standards for purposes of compliance.

(2) Specific Components. If a basic model includes individual models with components listed at table 6 to § 429.43(a)(3)(v)(A) and DOE is not able to obtain an individual model with the least number (which could be zero) of those components within an otherwise comparable model group (as defined in § 429.43(a)(3)(v)(A)(1)), DOE may test any individual model within the otherwise comparable model group.

(ee) Dedicated-purpose pool pump motors. (1) To verify the dedicated-purpose pool pump motor variable speed capability, a test in accordance with section 5 of UL 1004-10:2022 (incorporated by reference, see § 429.4) will be conducted.

(2) To verify that dedicated-purpose pool pump motor comply with the applicable freeze protection design requirements, a test in accordance with section 6 of UL 1004-10:2022 will be conducted.

(ff) Commercial refrigerators, freezers, and refrigerator-freezers—(1) Verification of volume. The volume will be measured pursuant to the test requirements of 10 CFR part 431 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of the certified volume of the basic model. The certified volume will be considered valid only if the average measured volume is within five percent of the certified volume.

(i) If the certified volume is found to be valid, the certified volume will be used as the basis for determining the maximum daily energy consumption allowed for the basic model.

(ii) If the certified volume is found to be invalid, the average measured volume of the units in the sample will be used as the basis for determining the maximum daily energy consumption allowed for the basic model.

(2) Verification of total display area. The total display area will be measured pursuant to the test requirements of 10 CFR part 431 for each unit tested. The results of the measurement(s) will be averaged and compared to the value of the certified total display area of the basic model. The certified total display area will be considered valid only if the average measured total display area is within five percent of the certified total display area.

(i) If the certified total display area is found to be valid, the certified total display area will be used as the basis for determining the maximum daily energy consumption allowed for the basic model.

(ii) If the certified total display area is found to be invalid, the average measured total display area of the units in the sample will be used as the basis for determining the maximum daily energy consumption allowed for the basic model.

(3) Determination of pull-down temperature application. A classification of a basic model as pull-down temperature application will be considered valid only if a model meets the definition of “pull-down temperature application” specified in § 431.62 of this chapter as follows.

(i) 12-ounce beverage can temperatures will be measured for 12-ounce beverage cans loaded at the locations within the commercial refrigerator that are as close as possible to the locations that would be measured by test simulators according to the test procedure for commercial refrigerators specified in § 431.64 of this chapter.

(ii) The commercial refrigerator will be operated at ambient conditions consistent with those specified for commercial refrigerators in § 431.64 of this chapter and at the control setting necessary to achieve a stable integrated average temperature of 38 °F, prior to loading.

(iii) 12-ounce beverage cans to be fully loaded into the commercial refrigerator (with and without temperature measurements) will be maintained at 90 °F ±2 °F based on the average measured 12-ounce beverage can temperatures prior to loading into the commercial refrigerator.

(iv) The duration of pull-down (which must be 12 hours or less) will be determined starting from closing the commercial refrigerator door after completing the 12-ounce beverage can loading until the integrated average temperature reaches 38 °F ±2 °F.

(v) An average stable temperature of 38 °F will be determined by operating the commercial refrigerator for an additional 12 hours after initially reaching 38 °F ±2 °F with no changes to control settings, and determining an integrated average temperature of 38 °F ±2 °F at the end of the 12 hour stability period.

(a) The first sample size (n1) for enforcement testing must be four or more units, except as provided by § 429.57(e)(1)(i).

(b) Compute the mean of the measured energy performance (x1) for all tests as follows:

(c) Compute the standard deviation (s1) of the measured energy performance from the n1 tests as follows:

(d) Compute the standard error (sx1) of the measured energy performance from the n1 tests as follows:

(e)(1) Compute the upper control limit (UCL1) and lower control limit (LCL1) for the mean of the first sample using the applicable DOE energy efficiency standard (EES) as the desired mean and a probability level of 95 percent (two-tailed test) as follows:

(2) For an energy efficiency or water efficiency standard, compare the mean of the first sample (x1) with the upper and lower control limits (UCL1 and LCL1) to determine one of the following:

(i) If the mean of the first sample is below the lower control limit, then the basic model is in noncompliance and testing is at an end. (Do not go on to any of the steps below.)

(ii) If the mean of the first sample is equal to or greater than the upper control limit, then the basic model is in compliance and testing is at an end. (Do not go on to any of the steps below.)

(iii) If the sample mean is equal to or greater than the lower control limit but less than the upper control limit, then no determination of compliance or noncompliance can be made and a second sample size is determined by Step (e)(3).

(3) For an energy efficiency or water efficiency standard, determine the second sample size (n2) as follows:

(i) If the value of n2 is less than or equal to zero and if the mean energy or water efficiency of the first sample (x1) is either equal to or greater than the lower control limit (LCL1) or equal to or greater than 95 percent of the applicable energy efficiency or water efficiency standard (EES), whichever is greater, i.e., if n2≤0 and x1≥max (LCL1, 0.95 EES), the basic model is in compliance and testing is at an end.

(ii) If the value of n2 is less than or equal to zero and the mean energy efficiency of the first sample (x1) is less than the lower control limit (LCL1) or less than 95 percent of the applicable energy or water efficiency standard (EES), whichever is greater, i.e., if n2≤0 and x1≤max (LCL1, 0.95 EES), the basic model is not in compliance and testing is at an end.

(iii) If the value of n2 is greater than zero, then, the value of the second sample size is determined to be the smallest integer equal to or greater than the solution value of n2 for equation (6). If the value of n2 so calculated is greater than 21− n1, set n2 equal to 21− n1.

(4) Compute the combined mean (x2) of the measured energy or water efficiency of the n1 and n2 units of the combined first and second samples as follows:

(5) Compute the standard error (Sx2) of the measured energy or water performance of the n1 and n2 units in the combined first and second samples as follows:

(6) For an energy efficiency standard (EES), compute the lower control limit (LCL2) for the mean of the combined first and second samples using the DOE EES as the desired mean and a one-tailed probability level of 97.5 percent (equivalent to the two-tailed probability level of 95 percent used in Step (e)(1)) as follows:

(7) For an energy efficiency standard (EES), compare the combined sample mean (x2) to the lower control limit (LCL2) to determine one of the following:

(i) If the mean of the combined sample (x2) is less than the lower control limit (LCL2) or 95 percent of the applicable energy efficiency standard (EES), whichever is greater, i.e., if x2<max (LCL2, 0.95 EES), the basic model is not compliant and testing is at an end.

(iii) If the mean of the combined sample (x2) is equal to or greater than the lower control limit (LCL2) or 95 percent of the applicable energy efficiency standard (EES), whichever is greater, i.e., if x2≥max (LCL2, 0.95 EES), the basic model is in compliance and testing is at an end.

(f)(1) Compute the upper control limit (UCL1) and lower control limit (LCL1) for the mean of the first sample using the applicable DOE energy consumption standard (ECS) as the desired mean and a probability level of 95 percent (two-tailed test) as follows:

(2) For an energy or water consumption standard, compare the mean of the first sample (x1) with the upper and lower control limits (UCL1 and LCL1) to determine one of the following:

(i) If the mean of the first sample is above the upper control limit, then the basic model is in noncompliance and testing is at an end. (Do not go on to any of the steps below.)

(ii) If the mean of the first sample is equal to or less than the lower control limit, then the basic model is in compliance and testing is at an end. (Do not go on to any of the steps below.)

(iii) If the sample mean is equal to or less than the upper control limit but greater than the lower control limit, then no determination of compliance or noncompliance can be made and a second sample size is determined by Step (f)(3).

(3) For an Energy or Water Consumption Standard, determine the second sample size (n2) as follows:

(i) If the value of n2 is less than or equal to zero and if the mean energy or water consumption of the first sample (x1) is either equal to or less than the upper control limit (UCL1) or equal to or less than 105 percent of the applicable energy or water consumption standard (ECS), whichever is less, i.e., if n2 ≤0 and x1 ≤min (UCL1, 1.05 ECS), the basic model is in compliance and testing is at an end.

(ii) If the value of n2 is less than or equal to zero and the mean energy or water consumption of the first sample (x1) is greater than the upper control limit (UCL1) or more than 105 percent of the applicable energy or water consumption standard (ECS), whichever is less, i.e., if n2 ≤0 and x1 >min (UCL1, 1.05 EPS), the basic model is not compliant and testing is at an end.

(iii) If the value of n2 is greater than zero, then the value of the second sample size is determined to be the smallest integer equal to or greater than the solution value of n2 for equation (11). If the value of n2 so calculated is greater than 21−n1, set n2 equal to 21−n1.

(4) Compute the combined mean (x2) of the measured energy or water consumption of the n1 and n2 units of the combined first and second samples as follows:

(5) Compute the standard error (Sx2) of the measured energy or water consumption of the n1 and n2 units in the combined first and second samples as follows:

(6) For an energy or water consumption standard (ECS), compute the upper control limit (UCL2) for the mean of the combined first and second samples using the DOE ECS as the desired mean and a one-tailed probability level of 97.5 percent (equivalent to the two-tailed probability level of 95 percent used in Step (f)(1)) as follows:

(7) For an energy or water consumption standard (ECS), compare the combined sample mean (x2) to the upper control limit (UCL2) to determine one of the following:

(i) If the mean of the combined sample (x2) is greater than the upper control limit (UCL2) or 105 percent of the ECS whichever is less, i.e., if x2 >min (UCL2, 1.05 ECS), the basic model is not compliant and testing is at an end.

(ii) If the mean of the combined sample (x2) is equal to or less than the upper control limit (UCL2) or 105 percent of the applicable energy or water performance standard (ECS), whichever is less, i.e., if x 2≤min (UCL2, 1.05 ECS), the basic model is in compliance and testing is at an end.

The Department will determine compliance as follows:

(a) The first sample size (n1) must be four or more units, except as provided by § 429.57(e)(1)(ii).

(b) Compute the mean of the measured energy performance (x1) for all tests as follows:

(c) Compute the standard deviation (s1) of the measured energy performance from the n1 tests as follows:

(d) Compute the standard error (sx1) of the measured energy performance from the n1 tests as follows:

(e)(1) For an energy efficiency standard (EES), determine the appropriate lower control limit (LCL1) according to:

And use whichever is greater. Where EES is the energy efficiency standard and t is a statistic based on a 97.5 percent, one-sided confidence limit and a sample size of n1.

(2) For an energy consumption standard (ECS), determine the appropriate upper control limit (UCL1) according to:

And use whichever is less, where ECS is the energy consumption standard and t is a statistic based on a 97.5 percent, one-sided confidence limit and a sample size of n1.

(f)(1) Compare the sample mean to the control limit.

(i) The basic model is in compliance and testing is at an end if:

(A) For an energy or water efficiency standard, the sample mean is equal to or greater than the lower control limit, or

(B) For an energy or water consumption standard, the sample mean is equal to or less than the upper control limit.

(a) When testing distribution transformers, the number of units in the sample (m1) shall be in accordance with § 429.47(a) and DOE shall perform the following number of tests:

(1) If DOE tests four or more units, it will test each unit once;

(2) If DOE tests two or three units, it will test each unit twice; or

(3) If DOE tests one unit, it will test that unit four times.

(b) DOE shall determine compliance as follows:

(1) Compute the mean (X1) of the measured energy performance of the n1 tests in the first sample as follows:

(2) Compute the sample standard deviation (S1) of the measured efficiency of the n1 tests in the first sample as follows:

(3) Compute the standard error (SE(X1)) of the mean efficiency of the first sample as follows:

(4) Compute the sample size discount (SSD(m1)) as follows:

(5) Compute the lower control limit (LCL1) for the mean of

(6) Compare the mean of the first sample (X1) with the lower control limit (LCL1) to determine one of the following:

(i) If the mean of the first sample is below the lower control limit, then the basic model is not compliant and testing is at an end.

(ii) If the mean is equal to or greater than the lower control limit, no final determination of compliance or noncompliance can be made; proceed to Step (7).

(7) Determine the recommended sample size (n) as follows:

Given the value of n, determine one of the following:

(i) If the value of n is less than or equal to n1 and if the mean energy efficiency of the first sample (X1) is equal to or greater than the lower control limit (LCL1), the basic model is in compliance and testing is at an end.

(ii) If the value of n is greater than n1, the basic model is not compliant. The size of a second sample n2 is determined to be the smallest integer equal to or greater than the difference n−n1. If the value of n2 so calculated is greater than 21−n1, set n2 equal to 21−n1.

(8) Compute the combined (X2) mean of the measured energy performance of the n1 and n2 units of the combined first and second samples as follows:

(9) Compute the standard error (SE(X2)) of the mean full-load efficiency of the n1 and n2 units in the combined first and second samples as follows:

(Note that S1 is the value obtained above in (2).)

(10) Set the lower control limit (LCL2) to,

(i) If the mean of the combined sample (X2) is less than the lower control limit (LCL2), the basic model is not compliant and testing is at an end.

(ii) If the mean of the combined sample (X2) is equal to or greater than the lower control limit (LCL2), the basic model is in compliance and testing is at an end.

(a) The minimum sample size for enforcement testing will be one unit.

(b) Compute the average load adjusted efficiency (Effavg) of the unit in the sample.

(c) Determine the applicable DOE energy efficiency standard (EES).

(d) If all Effavg are equal to or greater than EES, then the basic model is in compliance and testing is at an end.

(e) If any Effavg is less than EES, then the basic model is in noncompliance and testing is at an end.