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Code · CFR · Title 10 — Energy · Part 431 — Energy Efficiency Program for Certain Commercial and Industrial Equipment · § 431.86

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

244 words·~1 min read·/us/cfr/t10/s§ 431.86·

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(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 WaterGas-fired≥300,000 and ≤2,500,000Thermal EfficiencyAppendix A, Section 2. Hot WaterGas-fired>2,500,000Combustion EfficiencyAppendix A, Section 3. Hot WaterOil-fired≥300,000 and ≤2,500,000Thermal EfficiencyAppendix A, Section 2. Hot WaterOil-fired>2,500,000Combustion EfficiencyAppendix A, Section 3. SteamGas-fired (all*)≥300,000 and ≤2,500,000Thermal EfficiencyAppendix A, Section 2. SteamGas-fired (all*)>2,500,000 and ≤5,000,000Thermal EfficiencyAppendix A, Section 2. >5,000,000Thermal EfficiencyAppendix A, Section 2. OR Appendix A, Section 3 with Section 2.4.3.2. SteamOil-fired≥300,000 and ≤2,500,000Thermal EfficiencyAppendix A, Section 2. SteamOil-fired>2,500,000 and ≤5,000,000Thermal EfficiencyAppendix A, Section 2. >5,000,000Thermal EfficiencyAppendix 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]
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