C823-11

Performance of air handlers in residential space conditioning systems

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CSA Standards Update Service

C823-11 May 2011

Title: Performance of air handlers in residential space conditioning systems

Pagination: 29 pages (ix preliminary and 20 text), each dated May 2011

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CSA Standard

C823-11

Performance of air handlers in residential space conditioning systems

Published in May 2011 by Canadian Standards Association A not-for-profit private sector organization

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ISBN 978-1-55491-525-5

© Canadian Standards Association — 2011

All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.

© Canadian Standards Association Performance of air handlers in residential space conditioning systems

Contents

Technical Committee on Heating, Ventilation, Air Conditioning, and Refrigeration v

Subcommittee on Fan/Motor Combinations vii

Preface ix

1. Scope 1

   
   

2. Reference publications 1

   
   

3. Definitions 2

   
   

4. Standardized performance ratings 2

   1. General 2

   2. Electrical energy consumption ratings 2

   3. Annual electrical energy consumption rating 3

   4. Air delivery performance ratings 3

      
      

5. Test set-up 3

   1. General 3

   2. Outlet duct dimensions and static pressure tap 4

   3. Electrical supply 4

   4. Electrical power and energy consumption measurement 4

   5. Test room temperature 5

   6. Measuring equipment precision and accuracy 5

      
      

6. Test procedure 5

   1. Overview 5

   2. Procedure 5

      
      

7. Airflow-measuring apparatus 6

   1. General 6

   2. Examples of acceptable airflow measurement set-ups 6

      1. Nozzle chamber airflow measurement apparatus set-up based on ANSI/AMCA 210/ ANSI/ASHRAE 51 6

      2. Nozzle chamber airflow measurement apparatus set-up based on ANSI/ASHRAE 37 6

         
         

8. Measurements and calculations with the air handler operating 7

   1. Operating modes 7

   2. Standby power 7

      
      

9. Reference system for performance ratings 7

   1. Full-load space heating mode 7

   2. Cooling and circulating modes 8

   3. Adjustments for air handlers with multi-stage heating or variable and/or cooling capacities 8

      
      

10. Minimum and premium performance requirements 8

Annexes

A (informative) — Reporting templates 14

B (informative) — Operating hours calculation 19

May 2011 iii

C823-11 © Canadian Standards Association

Tables

1. — Standardized annual operating hours 9

2. — Measuring equipment precision and accuracy requirements 10

Figures

1. — Outlet duct showing reference location for outlet static pressure tap 11

2. — Nozzle chamber airflow measurement apparatus 12

3. — Nozzle chamber airflow measurement apparatus used in ANSI/ASHRAE 37 13

iv May 2011

© Canadian Standards Association Performance of air handlers in residential space conditioning systems

Technical Committee on Heating, Ventilation, Air Conditioning, and Refrigeration

B. Killins Natural Resources Canada, Ottawa, Ontario

Chair

R.L.D. Cane Caneta Research, Mississauga, Ontario

Vice-Chair

S. Cao BC Hydro,

Burnaby, British Columbia

Associate

A. Carrier Hydro-Québec, Montréal, Québec

G.E. Cooke Air Solutions Incorporated, Cambridge, Ontario

K.N. Delves Natural Resources Canada, Ottawa, Ontario

Associate

P. Duffy Buchan, Lawton, Parent Ltd., Toronto, Ontario

Associate

P.F. Edwards Peter Edwards Co., Mississauga, Ontario

D. Fugler Canada Mortgage and Housing Corporation, Ottawa, Ontario

P. Grinbergs Airia Brands Inc., London, Ontario

E. Grzesik Ontario Ministry of Energy and Infrastructure, Toronto, Ontario

G.R. Hamer BC Hydro,

Burnaby, British Columbia

Associate

A.J. Heffler Ottawa, Ontario

G.D.A. Henriques Henriques Consulting,

Richmond, British Columbia

Associate

N. Hutchings Ontario Power Authority Conservation Bureau, Toronto, Ontario

Associate

C. Kahramanoglu Ontario Ministry of Municipal Affairs and Housing,

Toronto, Ontario

May 2011 v

C823-11 © Canadian Standards Association

A. Kelly Canadian Electricity Association, Ottawa, Ontario

Associate

T.K. Lau BC Hydro,

Burnaby, British Columbia

Associate

C. Li Hydro One Networks Inc., Toronto, Ontario

Associate

R. Lord Carrier Corporation, Murfreesboro, Tennessee, USA

V. Minea LTE Hydro-Québec, Shawinigan, Québec

Associate

T.J. Orris AMCA International, Inc., Arlington Heights, Illinois, USA

Associate

P. Rhodes Sears Canada Inc., Toronto, Ontario

D. Terlizzi Heating, Refrigeration and Air Conditioning Institute of Canada,

Mississauga, Ontario

Associate

W.N. Vale Triple B, Harcourt, Ontario

K.A. Veerman FortisBC Inc.,

Kelowna, British Columbia

Associate

M. Hopkins Canadian Standards Association, Mississauga, Ontario

Project Manager

vi May 2011

© Canadian Standards Association Performance of air handlers in residential space conditioning systems

Subcommittee on Fan/Motor Combinations

D.R. Friesen Manitoba Hydro,

Winnipeg, Manitoba

Chair

P. Angers LTE Hydro-Québec, Shawinigan, Québec

R. Aniruddh Air-Conditioning, Heating and Refrigeration Institute,

Arlington, Virginia, USA

D.E. Delaney General Electric Company, Fort Wayne, Indiana, USA

D.C. Dodge Conserve Nova Scotia, Halifax, Nova Scotia

P.F. Edwards Peter Edwards Co., Mississauga, Ontario

E. Grzesik Ontario Ministry of Energy and Infrastructure, Toronto, Ontario

G.D.A. Henriques Henriques Consulting,

Richmond, British Columbia

A. Herzon Nordyne Inc., O’Fallon, Missouri, USA

N. Hutchings Ontario Power Authority Conservation Bureau, Toronto, Ontario

M. Ishlove V.J. Pamensky Canada Incorporated, Toronto, Ontario

D.M. Jakobs Rheem Manufacturing Company, Fort Smith, Arkansas, USA

W. John EBM-PAPST Inc.,

Farmington, Connecticut, USA

1. Kelly Canadian Electricity Association, Ottawa, Ontario

   
   

2. Killins Natural Resources Canada, Ottawa, Ontario

J. Lutz Lawrence Berkeley National Laboratory, Berkeley, California, USA

May 2011 vii

C823-11 © Canadian Standards Association

G. Morandini BC Hydro,

Burnaby, British Columbia

L. Murray Emerson Electric Company, St. Louis, Missouri, USA

T.J. Orris AMCA International, Inc., Arlington Heights, Illinois, USA

1. Phillips UNIES Ltd.,

   Winnipeg, Manitoba

   
   

2. Pitis BC Hydro,

Burnaby, British Columbia

S. Stricker Stricker Associates Inc., Richmond Hill, Ontario

D. Terlizzi Heating, Refrigeration and Air Conditioning Institute of Canada,

Mississauga, Ontario

M. Thomas Natural Resources Canada, Ottawa, Ontario

G. Wagner Morrison Products Inc., Cleveland, Ohio, USA

I.S. Walker Lawrence Berkeley National Laboratory, Berkeley, California, USA

J.H. White System Science Consulting, Kemptville, Ontario

M. Zeller BC Hydro,

Burnaby, British Columbia

K. Zia Carrier Corporation, Indianapolis, Indiana, USA

J.L. Hernandez Canadian Standards Association,

Mississauga, Ontario

Project Manager

viii May 2011

© Canadian Standards Association Performance of air handlers in residential space conditioning systems

Preface

This is the first edition of CSA C823, Performance of air handlers in residential space conditioning systems.

This Standard specifies requirements for measuring both the air delivery and the electrical energy consumption of air handlers in residential space conditioning systems over a range of static pressures and speed control settings. Based on those measurements, performance ratings are developed for air handlers for each of their operating control settings using a standardized system resistance curve. An annual electrical energy consumption rating is also calculated. The actual performance and annual electricity use of air handlers can vary from the ratings because of differences in how they are installed and used.

Figures 1 to 3 have been adapted from ANSI/AMCA 210-07, with permission.

CSA acknowledges that the development of this Standard was made possible, in part, by the financial support of BC Hydro, the Canadian Electricity Association (CEA), Manitoba Hydro, Natural Resources Canada (NRCan), the Ontario Ministry of Energy (OME), the Ontario Power Authority (OPA), and SaskPower.

This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

This Standard was prepared by the Subcommittee on Fan/Motor Combinations, under the jurisdiction of the Technical Committee on Heating, Ventilation, Air Conditioning, and Refrigeration and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee.

May 2011

Notes:

1. Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2. Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.

3. This publication was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this publication.

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   1. define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;

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   3. where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue. Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSA’s periodical Info Update, which is available on the CSA website at https://standardsactivities.csa.ca.

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   4. rationale for the change.

May 2011 ix

© Canadian Standards Association Performance of air handlers in residential space conditioning systems

C823-11

Performance of air handlers in residential space conditioning systems

1. Scope

   
   

   1.1

   This Standard applies to ducted air handler units that are used to supply and/or circulate conditioned air in residential central space conditioning systems such as furnaces, heat pumps, combination air handlers, and fan coils.

   
   

   1.2

   This Standard specifies the test procedure and calculations for determining performance ratings for the air delivery and electrical energy consumption of air handlers. It does not address thermal performance ratings for air handler systems.

   
   

   1.3

   This Standard does not apply to draft inducer fans, exhaust fans, or heat/energy recovery ventilators.

   
   

   1.4

   In CSA standards, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

   Notes accompanying clauses do not include requirements or alternative requirements; the purpose of

   a note accompanying a clause is to separate from the text explanatory or informative material.

   Notes to tables and figures are considered part of the table or figure and may be written as requirements.

   Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.

   
   

   1.5

   The values given in SI units are the units of record for the purposes of this Standard. The values given in parentheses are for information and comparison only.

   
   

2. Reference publications

This Standard refers to the following publications, and where such reference is made, it shall be to the edition listed below.

CSA (Canadian Standards Association)

CAN/CSA-C62301-07

Household electrical appliances — Measurement of standby power

May 2011 1