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Federal Register / Vol. 86, No. 96 / Thursday, May 20, 2021 / Proposed Rules
and urinals test procedure final rule representations with respect to the water consumption of water closets and urinals must be made in accordance with tests conducted pursuant to this appendix, manufacturers may wish to begin using this test procedure as soon as possible.
0. Incorporation by reference DOE incorporated by reference in 430.3, the entire standard for ASME A112.19.2
2018; however, only enumerated provisions of that document apply to this appendix, as follows:
a. Section 7.1.2 Gravity flush tank water closets, as specified in section 2.a of this appendix;
b. Section 7.1.3 Flushometer tank, electrohydraulic, or other pressurized flushing device water closets, as specified in section 2.a of this appendix;
c. Section 7.1.4 Flushometer valve water closets, as specified in section 2.a of this appendix;
d. Section 7.1.5 Procedures for standardizing the water supply system, as specified in section 2.a of this appendix;
e. Section 7.3 Water consumption test, as specified in section 3.a of this appendix;
f. Section 8.2.1, as specified in section 2.b of this appendix;
g. Section 8.2.2, as specified in section 2.b of this appendix h. Section 8.2.3, as specified in section 2.b of this appendix;
i. Section 8.6 Water Consumption Test, as specified in section 3.b of this appendix;
j. Table 5 Static test pressures for water closets, kPa psi, as specified in section 2.a and 3.a of this appendix; and k. Table 6 Static test pressures for urinals, kPa psi as specified in section 2.a and 3.a of this appendix.
In cases where there is a conflict, the language of the test procedure in this appendix takes precedence over ASME
A112.19.22018.
1. Scope: This appendix covers the test requirements used to measure the hydraulic performances of water closets and urinals.
2. Test Apparatus and General Instructions a. When testing a water closet, use the test apparatus and follow the instructions specified in sections 7.1.1 including Table 5, 7.1.2, 7.1.3, 7.1.4, and 7.1.5 of ASME
A112.19.22018 incorporated by reference, see 430.3. The flushometer valve used in the water consumption test must represent the maximum design flush volume of the water closet. Record each measurement at the resolution of the test apparatus. Round each calculation of water consumption for each tested unit to the same number of significant digits as the previous step.
b. When testing a urinal, use the test apparatus and follow the instructions specified in sections 8.2.1, 8.2.2, and 8.2.3
including Table 6 of ASME A112.19.2
2018. The flushometer valve used in the water consumption test must represent the maximum design flush volume of the urinal.
Record each measurement at the resolution of the test apparatus. Round each calculation of water consumption for each tested unit to the same number of significant digits as the previous step.

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3. Test Measurement a. Water closets:
i Measure the water flush volume for water closets, expressed in gallons per flush gpf and liters per flush Lpf, in accordance with section 7.3, Water Consumption Test, of ASME A112.19.22018 incorporated by reference, see 430.3. For dual-flush water closets, the measurement of the water flush volume shall be conducted separately for the full-flush and reduced-flush modes and in accordance with the test requirements specified section 7.3, Water Consumption Test, of ASME A112.19.22018. The final measured flush volume for each tested unit is the average of the total flush volumes recorded at each test pressure as specified in Table 5 Static test pressures for water closets, kPa psi, of ASME A112.19.22018.
ii Flush volume and tank trim component adjustments: For gravity flush tank water closets, set trim components that can be adjusted to cause an increase in flush volume, including but not limited to the flapper valve, fill valve, and tank water level, in accordance with the installation instructions supplied by the manufacturer with the unit. If the installation instructions for the model to be tested do not specify trim setting adjustments, adjust these trim components to the maximum water use setting so that the maximum flush volume is produced without causing the water closet to malfunction or leak. Set the water level in the tank to the maximum water line designated in the installation instructions supplied by the manufacturer or the designated water line on the tank itself, whichever is higher. If the printed installation instructions or the water closet tank do not indicate a water level, adjust the water level to 1 0.1 inches below the top of the overflow tube or 1 0.1 inches below the top rim of the water-containing vessel for gravity flush tank water closets that do not contain an overflow tube for each designated pressure specified in Table 5 of ASME A112.19.22018.
b. UrinalsMeasure water flush volume for urinals, expressed in gallons per flush gpf and liters per flush Lpf, in accordance with section 8.6, Water Consumption Test, of ASME A112.19.22018. The final measured flush volume for each tested unit is the average of the total flush volumes recorded at each test pressure as specified in Table 6
Static test pressures for urinals, kPa psi, of ASME A112.19.22018.

6. Section 430.32 is amended by revising paragraph q to read as follows:

430.32 Energy and water conservation standards and their compliance dates.

q Water closets. 1 The maximum water use allowed in gallons per flush for any of the following water closets manufactured after January 1, 1994, shall be as follows:
Maximum flush rate gpf Lpf
Water closet type i Gravity flush tank water closet

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1.6 6.0

Water closet type ii Flushometer tank water closet
iii Electromechanical hydraulic water closet
ivBlowout bowl water closet
Maximum flush rate gpf Lpf 1.6 6.0
1.6 6.0
3.5 13.2

2 The maximum water use allowed for flushometer valve water closets, other than those with blowout bowls, manufactured after January 1, 1997, shall be 1.6 gallons per flush 6.0 liters per flush.

FR Doc. 202109695 Filed 51921; 8:45 am BILLING CODE 645001P

DEPARTMENT OF ENERGY
10 CFR Part 431
EERE2019BTTP0025
RIN 1904AE55

Energy Conservation Program: Test Procedure for Commercial Prerinse Spray Valves Office of Energy Efficiency and Renewable Energy, Department of Energy.
ACTION: Notice of proposed rulemaking and request for comment.
AGENCY:

The U.S. Department of Energy DOE proposes to amend the test procedures for commercial prerinse spray valves to incorporate by reference the current version of the relevant industry standard, i.e., ASTM F2324.
ASTM F2324 2019 is a reaffirmation of the industry standard currently incorporated by reference in the DOE
test procedure for commercial prerinse spray valves and as such, this proposal would not substantively change the current test procedure. DOE also proposes to amend the commercial prerinse spray valves definition to codify existing guidance on the application of the definition. DOE is seeking comment from interested parties on the proposal.
DATES: DOE will accept comments, data, and information regarding this proposal no later than July 19, 2021. See section V, Public Participation, for details.
Meeting: DOE will hold a webinar on this proposed rule on Wednesday, June 9, 2021, from 10:00 a.m. to 3:00 p.m. See section V, Public Participation, for webinar registration information, participant instructions, and information about the capabilities available to webinar participants SUMMARY:

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