10 CFR 431.86 - Uniform test method for the measurement of energy efficiency of commercial packaged boilers.

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§ 431.86 Uniform test method for the measurement of energy efficiency of commercial packaged boilers.

(a)Scope. This section provides test procedures, pursuant to the Energy Policy and Conservation Act (EPCA), as amended, which must be followed for measuring the combustion efficiency and/or thermal efficiency of a gas- or oil-fired commercial packaged boiler.

(b)Testing and Calculations. Determine the thermal efficiency or combustion efficiency of commercial packaged boilers by conducting the appropriate test procedure(s) indicated in Table 1 of this section.

Table 1 - Test Requirements for Commercial Packaged Boiler Equipment Classes

Equipment category Subcategory Certified rated input
Btu/h
Standards efficiency metric
(§ 431.87)
Test procedure
(corresponding to
standards efficiency
metric required
by § 431.87)
Hot Water Gas-fired ≥300,000 and ≤2,500,000 Thermal Efficiency Appendix A, Section 2.
Hot Water Gas-fired >2,500,000 Combustion Efficiency Appendix A, Section 3.
Hot Water Oil-fired ≥300,000 and ≤2,500,000 Thermal Efficiency Appendix A, Section 2.
Hot Water Oil-fired >2,500,000 Combustion Efficiency Appendix A, Section 3.
Steam Gas-fired (all*) ≥300,000 and ≤2,500,000 Thermal Efficiency Appendix A, Section 2.
Steam Gas-fired (all*) >2,500,000 and ≤5,000,000 Thermal Efficiency Appendix A, Section 2.
>5,000,000 Thermal Efficiency Appendix A, Section 2.
OR
Appendix A, Section 3 with Section 2.4.3.2.
Steam Oil-fired ≥300,000 and ≤2,500,000 Thermal Efficiency Appendix A, Section 2.
Steam Oil-fired >2,500,000 and ≤5,000,000 Thermal Efficiency Appendix A, Section 2.
>5,000,000 Thermal Efficiency Appendix A, Section 2.
OR
Appendix A, Section 3. with Section 2.4.3.2.

* Equipment classes for commercial packaged boilers as of July 22, 2009 ( 74 FR 36355) distinguish between gas-fired natural draft and all other gas-fired (except natural draft).

(c)Field Tests. The field test provisions of appendix A may be used only to test a unit of commercial packaged boiler with rated input greater than 5,000,000 Btu/h.

[ 81 FR 89305, Dec. 9, 2016]

Title 10 published on 10-May-2017 03:48

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR Part 431 after this date.

  • 2017-03-21; vol. 82 # 53 - Tuesday, March 21, 2017
    1. 82 FR 14426 - Energy Conservation Program: Test Procedures for Compressors
      GPO FDSys XML | Text
      DEPARTMENT OF ENERGY, Office of Energy Efficiency and Renewable Energy
      Final rule; further delay of effective date.
      As of March 21, 2017, the effective date of the rule amending 10 CFR parts 429 and 431 published in the Federal Register at 82 FR 1052 on January 4, 2017, delayed until March 21, 2017 at 82 FR 8985 on February 2, 2017, is further delayed until July 3, 2017. The incorporation by reference of the publication listed in this rule is approved by the Director of the Federal Register as of July 3, 2017.
      10 CFR Parts 429 and 431

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