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Federal Register / Vol. 86, No. 167 / Wednesday, September 1, 2021 / Proposed Rules
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Confidential Business Information.
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It is DOEs policy that all comments may be included in the public docket, without change and as received, including any personal information provided in the comments except information deemed to be exempt from public disclosure.
E. Issues on Which DOE Seeks Comment Although DOE welcomes comments on any aspect of this proposal, DOE is particularly interested in receiving comments and views of interested parties concerning the following issues:
1 DOE requests comment on its proposal to require a hot water meter resolution no larger than 0.01 gallons for clothes washers that use less than 0.1
gallons in any of the individual cycles within the energy test cycle. DOE
requests comment on the extent to which manufacturers and test laboratories already use water meters with this greater resolution. DOE also requests comment on whether proposing this requirement for Appendix J2 would require manufacturers to retest any basic models that have already been certified under the existing water meter resolution requirements.
2 DOE requests comment on its proposal to require all single-inlet clothes washers to be installed to the cold water supply only. DOE also requests comment on whether this requirement should be included in only the proposed new Appendix J, or whether, if adopted, it should be included as an amendment to Appendix J2.
3 DOE requests comment on its proposal to update the hot water supply temperature for the proposed new
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Appendix J from 130135 F to 120
125 F. DOE seeks more recent data on hot water supply temperatures in consumer clothes washer installations.
DOE also requests comment on any potential impact to testing costs that may occur by harmonizing temperatures between the clothes washer and dishwasher test procedures, and the impacts on manufacturer burden associated with any changes to the hot water supply temperature.
4 DOE requests comment on its proposal to specify in the proposed new Appendix J that the Extra-Hot Wash/
Cold Rinse designation would apply to a wash temperature greater than or equal to 140 F. DOE requests any additional data on the wash temperature of cycles that meet the Appendix J2
definition of Extra-Hot Wash/Cold Rinse. DOE is also interested in data and information on any potential impact to testing costs that may occur by changing the Extra-Hot Wash temperature threshold, and the impacts on manufacturer burden associated with any changes to the Extra-Hot Wash/Cold Rinse definition.
5 DOE requests comment on its proposal to remove the target temperatures and instead specify water supply temperature ranges as 55 F to 60 F for cold water in both Appendix J2 and the proposed new Appendix J, 130 F to 135 F for hot water in Appendix J2, and 120 F to 125 F for hot water in the proposed new Appendix J.
6 DOE requests comment on its proposal to allow the use of a submersible temperature logger in Appendix J2 and the proposed new Appendix J as an option to confirm that an Extra-Hot Wash temperature greater than the Extra-Hot Wash threshold has been achieved during the wash cycle.
DOE requests data and information confirming or disputing DOEs discussion of the benefits and limitations of using a submersible temperature logger, including DOEs determination that a submersible loggers failure to measure a temperature greater than the Extra-Hot Wash threshold does not necessarily indicate that the cycle under test does not meet the definition of an Extra-Hot Wash/
Cold Rinse cycle.
7 DOE requests comment on its proposal to specify the same preconditioning requirements for all clothes washers and to remove the water-heating clothes washer and non-water-heating clothes washer definitions in the proposed new Appendix J. DOE also requests information regarding whether test laboratories typically pre-condition
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water-heating and non-water-heating clothes washers using the same procedure.
8 DOE requests comment on its proposal to expand the load size table in both Appendix J2 and the proposed new Appendix J to accommodate RCWs with capacities up to 8.0 ft3.
9 DOE requests comment on its proposal to replace the minimum, maximum, and average load sizes with the small and large load sizes in the proposed new Appendix J. DOE seeks comment on how reducing the number of load sizes tested would impact the representativeness of test results. DOE
also requests data and information to quantify the reduction in test burden that would result from reducing the number of load sizes from three to two for clothes washers with automatic WFCS.
10 DOE requests comment on its proposal to change the water fill level selections in the proposed new Appendix J for clothes washers with manual and user-adjustable automatic WFCS to reflect the proposed small and large test load sizes. DOE seeks data and information on how the proposed changes to the water fill level selection for clothes washers with manual and user-adjustable automatic WFCS would impact test procedure representativeness.
11 DOE requests comment on the proposal to require in the proposed new Appendix J testing only the hottest and the coldest Warm Wash/Cold Rinse settings. DOE seeks data and information on how this proposed change to the Warm Wash temperature settings required for testing would impact representativeness, testing costs, and manufacturer burden.
12 DOE requests comment on its proposal to revise the RMC procedure so that RMC would be measured at the default spin setting for each temperature selection and load size, and the individual RMC values would be averaged using TUFs and LUFs to calculate the final RMC. DOE seeks data and information regarding how this change to the RMC calculation would impact testing costs and manufacturer test burden.
13 DOE further requests comment on whether DOE should implement any changes to the RMC calculation in Appendix J2 to address clothes washers with spin settings that are available only on certain temperature selections.
14 DOE requests comment on its tentative conclusion not to propose changes to the bone-dry definition and associated dryer temperature measurement method.

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