## Department of Energy Washington, DC 20585

RESIDENTIAL CENTRAL AIR CONDITIONERS AND HEAT PUMPS NICHE PRODUCT ENERGY EFFICIENCY STANDARDS

TEST PROCEDURE ISSUES NOTICE OF PUBLIC WORKSHOP FRIDAY, DECEMBER 13, 2002 9:00 a.m. - 4:00 p.m. The Department of Energy (DOE) is convening a public workshop for central air conditioners to discuss and receive comments on: 1) the analysis for a supplemental notice of proposed rulemaking to set efficiency standards for small duct high velocity central air conditioners and heat pumps, and 2) several central air conditioner and heat pump test procedure issues. The public workshop will be held on Friday, December 13, 2002, from 9:00 a.m. until 4:00 p.m. in Room 1E-245 of the Forrestal Building, U.S. Department of Energy, 1000 Independence Avenue, SW, Washington, DC 20585. Please note that foreign nationals visiting DOE headquarters are subject to advance security screening procedures. Foreign nationals that wish to participate in the workshop are asked to contact Ms. Crystal Branson at (202) 586-6448 so that the necessary arrangements can be made. In the May 23 , 2002 final standards rule, DOE created a new class for small duct, high velocity central air conditioners and heat pumps , but retained the NAECA prescribed standard levels because DOE had not yet conducted the analysis required to determine whether higher levels are technologically feasible and economically justified

. DOE has now begun a rulemaking to determine if a higher standard is warranted

. In this workshop, we will discuss the analysis conducted to date. The central air conditioner test procedure is now being revised to address several issues (new default values for the cooling mode cyclic degradation coefficients being most significant) not covered in the general test procedure revision, for which the final rule is currently in internal DOE review. There will be a new rule proposed to address these issues. A copy of the draft preliminary agenda is attached. Additional information pertinent to the rulemaking is available at our website: http://www.eren.doe.gov/buildings/codes standards/index.htm If you plan to attend the workship, please let Ms. Branson know by telephone at (202) 586-6448, by fax at (202) 586-4617, or by e-mail at Crystal.Branson(ee.doe.gov.

Printed with soy ink on recycled paperIf you would like to make a presentation at the workshop , we would appreciate your letting us

know by December 2, and ask that you send us a copy of your remarks as soon as possible. Additional written comments , data, and information pertinent to the rulemaking must be submitted to DOE no later than January 8 , 2003. Because of significant delays in conventional mail service here at the Department, we request that you submit comments by electronic mail to the following address, specifically established for this rulemaking : CACra`ee.doe.gov.
Comments in electronic format should make reference to the docket number EE-RM/STD-02- 330 (standards) or EE-RM/TP-02-002 (test procedure), and wherever possible carry the electronic signature of the author. Absent an electronic signature, comments submitted electronically must be followed and authenticated by submitting the signed original paper document. Electronic comments must be submitted as a WordPerfect 5.1, 6.1, or 8 format file and avoid use of special characters or any form of encryption. Telefaxes will not be accepted. Again, thank you for your interest in this residential central air conditioners and heat pumps niche product energy efficiency standards and test procedure rulemaking. We look forward to seeing you at the workshop.

Michael Raymond Program Manager for Central Air Conditioners

## Draft Agenda

DOE SDHV Standards and Central AC Test Procedure Workshop 12-13-02
A. Introduction and Welcome

B _Sr ui T S tan dards 1. Engineering Analysis Introduction Approaches to determining SDHV Performance - Design Options Results Summary of Performance 2. Life Cycle Cost Analysis Introduction Results Sensitivity Studies Data Refinements 3. Remaining ti i)lI Tasks and Proposed Schedule C. CAC Test Procedures History/Status of DOE air conditioner and heat pump test procedure Revision for SDHV Other Revisions Clarifications to the Non Test Procedure Parts of the Code of Federal Regulations New Defaults for the cooling mode cyclic degradation coefficient D. Workshop Conclusion