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Federal Register / Vol. 86, No. 87 / Friday, May 7, 2021 / Proposed Rules
CPWG that would impact the recommended scope and definitions for SVIL pumps.
5 DOE seeks feedback and information regarding whether it may be appropriate to include SVIL pumps in the circulator pumps rulemaking, in the commercial and industrial pumps rulemaking, or in a separate rulemaking.
6 DOE seeks comment regarding any other topics related to scope and definitions for circulator pumps and SVIL pumps.
7 DOE requests comment on the CPWG recommendation to adopt PEICIRC as the metric to characterize the energy use of certain circulator pumps and on the recommended equation for PEICIRC, including whether anything in the technology or market has changed since publication of the 2016 Term Sheets that would lead to this metric no longer being appropriate.
8 DOE requests comment on the recommended definitions for manual speed control, pressure control, adaptive pressure control, temperature control, and external input signal control. Additionally, DOE requests comment on a possible definition for adaptive pressure control.
9 DOE requests comment on whether any additional control variety is now currently on the market and if it should be considered in this rulemaking.
10 DOE requests comment on whether the CPWG-recommended reference system curve shape, including the static offset, is reasonable for circulator pumps.
11 DOE requests comment on the recommended test methods, test points, and weights for circulator pumps with pressure controls, including circulator pumps with adaptive pressure controls.
Specifically, DOE requests comment on whether the technology or market for such controls has changed sufficiently since the term sheet to warrant a different approach.
12 DOE requests comment on the recommended test methods, test points, and weights for circulator pumps with temperature controls. Specifically, DOE
requests comment on whether the technology or market for such controls has changed sufficiently since the term sheet to warrant a different approach.
13 DOE requests comment on the CPWG-recommended test method and the unique test points, weights, and speed factors for circulator pumps distributed in commerce with manual speed controls. Specifically, DOE
requests comment on whether the technology or market for such controls has changed sufficiently since the term sheet to warrant a different approach.

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14 DOE requests comment on the CPWG-recommended test method for circulator pumps distributed in commerce with only external input signal controls, as well as for those distributed in commerce with external input signal controls in addition to other control varieties. Specifically, DOE requests comment on whether the technology or market for such controls has changed sufficiently since the term sheet to warrant a different approach.
15 DOE requests comment on the CPWG-recommended test methods, test points, and weights for circulator pumps with no controls.
16 DOE seeks comment and feedback on whether HI 40.62016 or HI
40.62021 is an appropriate test method for conducting wire-to-water testing of circulator pumps, as recommended by the CPWG. In addition, DOE seeks comment on whether the modifications in HI 40.62016 and/or HI 40.62021
adequately capture the CPWG
recommended modifications in Recommendation 10.
17 DOE seeks comment on whether the recommendations for twin-head circulator pumps and circulators-lessvolute have been adequately addressed in HI 40.62021.
18 DOE requests comment on the recommendation to test SVIL pumps with the test methods in the general pumps test procedure and additional provisions to account for the differences in size and characteristics of SVIL pump motors. In particular, DOE requests comment on the potential extension of the nominal full load motor efficiency values to reference DOEs small electric motor regulations, including certain single-phase motors, and the need for an exception for SVIL pumps so that those sold with single-phase motors do not have to be rated as bare pumps.
19 DOE also requests comment on the prevalence of SVIL pumps sold with single-phase versus three-phase motors, and the prevalence of SVIL pumps sold with motors not covered by DOEs small electric motors and electric motors energy conservation standards for either singleor three-phase motors.
20 DOE also requests comment on whether the equations used to establish the part load motor and drive losses in the general pumps test procedure are appropriate for SVIL pumps under one horsepower. If inappropriate, DOE
requests data supporting the generation of alternative loss curves.
21 DOE seeks comment on whether establishing a standard for circulator pumps and SVIL pumps would be costeffective, economically justified, technologically feasible, or would result in a significant savings of energy.

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22 DOE requests comment regarding the CPWG recommendation to include all circulator pumps within a single equipment class, especially regarding interim market changes since the recommendation that may warrant changes to that recommendation. DOE
additionally seeks comment regarding whether the same recommendations should apply to SVIL pumps.
23 DOE seeks information on the technologies listed in Table III.1
regarding their applicability to the current market and how these technologies may impact the efficiency of circulator pumps as measured according to the DOE test procedure.
Specifically, DOE seeks information on the range of efficiencies or performance characteristics that are currently available for each technology option.
24 DOE seeks information on the technologies listed in Table III.1
regarding their market adoption, costs, and any concerns with incorporating them into products e.g., impacts on consumer utility, potential safety concerns, manufacturing/production/
implementation issues, etc..
25 DOE seeks comment on other technology options that it should consider for inclusion in its analysis and if these technologies may impact product features or consumer utility.
26 DOE requests feedback on what impact, if any, the five screening criteria described in this section would have on each of the technology options listed in Table III.1 with respect to circulator pumps. Similarly, DOE seeks information regarding how these same criteria would affect any other technology options not already identified in this document with respect to their potential use in circulator pumps.
27 DOE requests feedback on appropriate baseline efficiency levels for DOE to apply to each equipment class in evaluating whether to establish energy conservation standards for these products.
28 DOE requests feedback on the appropriate baseline efficiency levels for any newly analyzed equipment classes that are not currently in place or for the contemplated combined equipment classes, as discussed in section III.A.1 of this document. For newly analyzed equipment classes, DOE requests energy use data to characterize the baseline efficiency level.
29 DOE seeks input on whether the maximum available efficiency levels are appropriate and technologically feasible for potential consideration as possible energy conservation standards for circulator pumpsand if not, why not.

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