CASE HVAC CONTROLS (FINAL).DOCHeating, Ventilating and Air Conditioning (HVAC)ControlsCodes and Standards Enhancement (CASE) StudyNovember 28, 2000Pacific Gas and Electric CompanyPatrick EilertPacific Gas and Electric Co.P.O. Box 770000, H28ESan Francisco, CA 94177Phone: 530-757-5261E-mail: [email protected] report was prepared by Pacific Gas and Electric Company and funded by California utility customers under theauspices of the California Public Utilities Commission.Neither PG&E nor any of its employees and agents:1. makes any written or oral warranty, expressed or implied, regarding this report, including but not limited to thoseconcerning merchantability or fitness for a particular purpose;2. assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information,apparatus, product, process, method, or policy contained herein; or3. represents that use of the report would not infringe any privately owned rights, including, but not limited to, patents,trademarks, or copyrights.Copyright 2000 Pacific Gas and Electric Company. All rights reserved.Reproduction or distribution of the whole or any part of the contents of this document without the express writtenpermission of PG&E is prohibited. Neither PG&E nor any of its employees makes any warranty, express or implied, orassumes any legal liability of responsibility for the accuracy, completeness, or usefulness of any data, information,method, policy, product or process disclosed in this document, or represents that its use will not infringe any privately-owned rights, including but not limited to patents, trademarks or copyrights.This page intentionally left blankCOPYRIGHT 2000 PACIFIC GAS AND ELECTRIC COMPANYCASE STUDY PAGE ITable of ContentsACKNOWLEDGMENTS............................................................................................................................IIINTRODUCTION..........................................................................................................................................1TECHNOLOGY DESCRIPTION................................................................................................................1CURRENT PRACTICE................................................................................................................................1ECONOMIZERS..............................................................................................................................................1FAN CONTROLS............................................................................................................................................2DIAGNOSTIC SYSTEMS .................................................................................................................................3MARKET CHARACTERISTICS ........................................................................................................................ 3EQUIPMENT RELIABILITY.............................................................................................................................5ECONOMICS ................................................................................................................................................5COSTS...........................................................................................................................................................5BENEFITS......................................................................................................................................................5AVAILABILITY..............................................................................................................................................7STATEWIDE ANALYSIS ................................................................................................................................. 8KEY STAKEHOLDERS...............................................................................................................................9IMPLEMENTATION STRATEGIES AND RECOMMENDATIONS...................................................9APPLIANCE EFFICIENCY REGULATIONS .......................................................................................................9ENERGY EFFICIENCY STANDARDS FOR BUILDINGS......................................................................................9VOLUNTARY STANDARDS ..........................................................................................................................10FUTURE RESEARCH ....................................................................................................................................10BIBLIOGRAPHY........................................................................................................................................11COPYRIGHT 2000 PACIFIC GAS AND ELECTRIC COMPANYPAGE II HVAC CONTROLSAcknowledgmentsThe New Buildings Institute developed this Codes and Standards Enhancement Study for thePacific Gas and Electric Company under Contract 4600010614, part of PG&E’s Codes andStandards Program for 1999. Project managers for PG&E included Jennifer Barnes, PatrickEilert, Gary Fernstrom and Marshall Hunt.Jeffrey A. Johnson, Senior Program Director of the New Buildings Institute, managed thisproject.Subcontractors on this project were:Eley Associates:Charles EleyArchitectural Energy Corporation:Pete JacobsDave RobertsKosol KiatreugwattanaDan BertiniDon Felts Energy Consulting:Don FeltsThe following individuals reviewed and advised the project: Cathy Higgins, New BuildingsInstitute; Bill Pennington, Michael Martin and Jonathan Leber, California Energy Commission.Produced by:New Buildings Institute, Inc.PO Box 653White Salmon, WA 98672E-mail: [email protected]: www.newbuildings.orgCOPYRIGHT 2000 PACIFIC GAS AND ELECTRIC COMPANYCASE STUDY PAGE 1IntroductionThis Codes and Standards Enhancement(CASE) Study provides information tosupport updating HVAC Controlsrequirements in California’s EnergyEfficiency Standards for NonresidentialBuildings (Standards). In addition, the studylooked at possible changes to the Title 20Appliance Efficiency Regulations(Regulations).This CASE study examines the followingissues relative to HVAC controls on unitaryequipment:• Economizer controls• Diagnostic systems• Thermostats and fan controlsThis CASE study for HVAC controlsdiscusses the:• technology,• current practice,• economics,• key stakeholders, and• implementation
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