CAN CSA-C745-2003 Energy Efficiency of Electric Storage Tank Water Heaters and Heat Pump Water Heaters (Third Edition Update No 1 March 2005).pdf

1、C745-03(reaffirmed 2014)Energy Efficiency of Electric Storage Tank Water Heaters and Heat Pump Water HeatersBlank pageUpdate No. 1 C745-03 March 2005 Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit www.ShopCSA.ca for informa

2、tion about the CSA Standards Update Service. Title: Energy Efficiency of Electric Storage Tank Water Heaters and Heat Pump Water Heaters originally published October 2003 The following revisions have been formally approved: Revised Outside front cover, inside front cover, and title page New National

3、 Standards of Canada text Deleted None CSA C745-03 originally consisted of 37 pages (x preliminary and 27 text), each dated October 2003. It now consists of the following pages: October 2003 iiix and 127 March 2005 Cover, National Standards of Canada text, title page, and copyright page Update your

4、copy by inserting these revised pages. Keep the pages you remove for reference. Blank pageCAN/CSA-C745-03A National Standard of Canada(approved March 2005)Energy Efficiency of Electric Storage Tank Water Heaters and Heat Pump Water HeatersLegal Notice for StandardsCanadian Standards Association (CSA

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34、 the responsibility of the users to judge its suitability for their particular purpose. Registered trade-mark of Canadian Standards Association (National Standards of Canada text inserted March 2005)Blank pageNational Standard of Canada (approved March 2005) CAN/CSA-C745-03 Energy Efficiency of Elec

35、tric Storage Tank Water Heaters and Heat Pump Water Heaters Published in October 2003 by Canadian Standards Association A not-for-profit private sector organization 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N6 1-800-463-6727 416-747-4044 Visit our Online Store at www.ShopCSA.ca

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39、al information.Blank pageCSA Standard C745-03 Energy Efficiency of Electric Storage Tank Water Heaters and Heat Pump Water Heaters Published in October 2003 by Canadian Standards Association A not-for-profit private sector organization 5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5

40、N6 1-800-463-6727 416-747-4044 Visit our Online Store at www.csa.ca ISBN 1-55397-214-7 Technical Editor: Sam Loggia Canadian Standards Association 2003 All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. Energy Effi

41、ciency of Electric Storage Tank Canadian Standards Association Water Heaters and Heat Pump Water HeatersOctober 2003 iii Contents Technical Committee on Residential Equipment v Subcommittee on Water Heaters vii Preface ix Foreword x 1 Scope 1 2 Reference Publications 2 3 Definitions 2 4 Test Conditi

42、ons and Set-up 4 4.1 General 4 4.2 Installation of Electric Storage Tank Water Heaters 5 4.3 Installation of Heat Pump Water Heaters 5 4.4 Water Supply 6 4.5 Electrical Supply 6 4.6 Heater Elements 6 4.7 Thermocouple Installation 6 4.8 Setting the Tank Thermostat 7 4.9 Energy Consumption Measurement

43、 7 4.10 Ambient Room Conditions 7 5 Testing and Measurements 8 5.1 Test Procedure 8 5.2 Storage Tank Capacity 8 5.3 Withdrawal of Water 8 5.4 Room Temperature Measurement 9 5.5 Mean Tank Water Temperature Measurement 9 5.6 First-Hour Rating Test 9 5.6.1 Draw Initiation Criteria 9 5.6.2 Test Procedur

44、e 9 5.7 Twenty-Four Hour Simulated Use Test 10 6 Calculation of Results 11 6.1 Energy Used During a Draw Test 11 6.2 Mean Outlet Hot Water Temperature 11 6.3 Mean Supply Water Temperature 12 6.4 First-Hour Rating 12 6.5 Recovery Efficiency 12 6.5.1 Electric Storage Tank Water Heaters 12 6.5.2 Heat P

45、ump Water Heaters 12 6.6 Standby Losses 13 6.6.1 Hourly Standby Losses 13 6.6.2 Heat Loss Coefficient 13 6.7 Daily Water Heating Energy Consumption 13 6.8 Ambient Temperature Adjustment 14 C745-03 Canadian Standards AssociationOctober 2003 iv 6.9 Water Temperature Rise Adjustment 14 6.10 Modified Da

46、ily Water Heating Energy Consumption 15 6.11 Energy Factor 15 6.12 Annual Energy Consumption 16 7 Published Ratings 16 8 Sampling Plan 16 9 Minimum Energy Efficiency Level 16 9.1 General 16 9.2 Energy Factor 16 9.3 Ratings for Untested Models 17 Tables 17 Figures 21 Annex A (informative) Tank Thermo

47、couple Position/Capacity Determination Procedure for Water Heaters 25 Energy Efficiency of Electric Storage Tank Canadian Standards Association Water Heaters and Heat Pump Water HeatersOctober 2003 v Technical Committee on Residential Equipment L. Boutin Hydro-Qubec, Chair Montral, Qubec E. Grzesik

48、Ontario Ministry of Energy, Science and Vice-Chair Technology, Toronto, Ontario R.L.D. Cane Caneta Research, Mississauga, Ontario C. Catanu Camco Inc., Montral, Qubec K. Delves Natural Resources Canada, Ottawa, Ontario H. Dobblesteyn Nova Scotia Department of Energy, Associate Halifax, Nova Scotia K

49、. Elsey Electro-Federation Canada, Mississauga, Ontario D. Fugler Canada Mortgage and Housing Corporation, Ottawa, Ontario G. Hamer BC Hydro, Burnaby, British Columbia W. Hassan Northern Lights Asset Management Ltd., Associate Oakville, Ontario D. Henriques BC Hydro, Associate Vancouver, British Columbia W. Kzanoski Hudsons Bay Company, Toronto, Ontario C. Lesage Giant Factories Inc./Usines Giant inc., Montral Est, Qubec H. Sam Canadian Electricity Association, Associate Montral, Qubec D. S