CSA C828:19

National Standard of Canada

Performance requirements for line voltage thermostats used with individual room electric space heating devices

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  CSA C828:19

  October 2019

  
  

  Title: Performance requirements for line voltage thermostats used with individual room electric space heating devices

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National Standard of Canada

CSA C828:19

Performance requirements for line voltage thermostats used with individual room electric space heating devices

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ICS 97.100.10

ISBN 978-1-4883-2442-0

© 2019 Canadian Standards Association

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Contents

Technical Committee on Residential Equipment 2 Subcommittee on Performance of Thermostats 4 Preface 6

1. Scope 7

   1. General 7

   2. Thermostats not covered by this Standard 7

   3. Thermal regulation and power grid issues 7

   4. Terminology 7

   5. Units of measurement 8

      
      

2. Reference publications 8

   
   

3. Definitions 8

   
   

4. General requirements 9

   1. Performance 9

   2. Safety 10

   3. Thermal regulation 10

      1. General 10

      2. Test conditions 10

      3. Wall-mounted line-voltage thermostats 10

      4. Built-in thermostats 10

      5. Two-component thermostats 10

   4. Performance requirements 11

      1. Droop 11

      2. Differential 11

      3. Control point precision 11

      4. Standard error 11

         
         

5. Thermal regulation test requirements 11

   1. Test set-up 11

   2. Test procedure 13

   3. Data analysis 13

Annex A (informative) — Details of sampling plan 20

Annex B (normative) — Standard error (STEYX) 22

Annex C (informative) — Electromagnetic compatibility and other grid impacts 23

Technical Committee on Residential Equipment

G. R. Hamer BC Hydro,

Burnaby, British Columbia, Canada

Category: User Interest/Regulatory Authority

Chair

J. K. Hodge Toronto, Ontario, Canada

Category: General Interest

Vice-Chair

C. Buchanan Natural Resources Canada, Ottawa, Ontario, Canada

Non-voting

G. Butt Emerson Electric Canada Limited, Richmond Hill, Ontario, Canada Category: Producer Interest

A. Carrier Hydro-Québec,

Montréal, Québec, Canada

Category: User Interest/Regulatory Authority

G. Chopra Electro Federation Canada, Toronto, Ontario, Canada

Non-voting

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

Non-voting

S. Grubbe Calgary, Alberta, Canada

Category: General Interest

G. D. Henriques Henriques Consulting,

Richmond, British Columbia, Canada

Non-voting

P. Hikspoors Giant Factories Inc., Montréal, Québec, Canada

Non-voting

R. Kelly Efficiency Nova Scotia Corporation, Dartmouth, Nova Scotia, Canada

Non-voting

A. Kelly Canadian Electricity Association (CEA), Ottawa, Ontario, Canada

Non-voting

1. Krsikapa Ontario Ministry of Energy, Toronto, Ontario, Canada

   Category: User Interest/Regulatory Authority

   
   

2. K. Lau BC Hydro,

Vancouver, British Columbia, Canada

Non-voting

C. Lesage Giant Factories Inc.,

Montréal-Est, Québec, Canada

Category: Producer Interest

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

Non-voting

G. Lundy IBM Canada Ltd., Markham, Ontario, Canada

Category: Producer Interest

E. Milakowski Ontario Ministry of Energy, Toronto, Ontario, Canada

Non-voting

R. Mortazavi Natural Resources Canada, Ottawa, Ontario, Canada

Non-voting

A. Orumwense Natural Resources Canada, Ottawa, Ontario, Canada

Category: User Interest/Regulatory Authority

R. J. Singlehurst Natural Resources Canada, Ottawa, Ontario, Canada

Non-voting

H. Tse Independent Electricity System Operator (IESO), Toronto, Ontario, Canada

Non-voting

M. B. Williams Association of Home Appliance Manufacturers

(AHAM),

Washington, District of Columbia, USA

Category: Producer Interest

J. Cheema CSA Group,

Toronto, Ontario, Canada

Project Manager

Subcommittee on Performance of Thermostats

1. Le Bel Laboratoire des technologies de l'énergie (LTE), Shawinigan, Québec, Canada

   Chair

   
   

2. Baldewicz ICF,

Greenwich, New York, USA

J. Bylinski Stelpro Design Inc.,

St-Bruno, Québec, Canada

G. Chopra Electro Federation Canada, Toronto, Ontario, Canada

Y. Cupidon Convectair NMT Inc.,

Sainte-Therese, Québec, Canada

J. Dukes Dimplex North America Limited, Cambridge, Ontario, Canada

P. M. Eastling Honeywell Inc.,

Golden Valley, Minnesota, USA

E. Fernando Brampton, Ontario, Canada

M. Fournier Hydro-Québec,

Shawinigan, Québec, Canada

J. Geissberger Casa Connected Appliances Ltd.,

St-Mathieu-De-Beloeil, Québec, Canada

G. R. Hamer BC Hydro,

Burnaby, British Columbia, Canada

J. P. Hervieux Ouellet Canada Inc.,

Ville de L'Islet, Québec, Canada

J. K. Hodge Toronto, Ontario, Canada

M. Kassabian Ontario Ministry of Energy, Toronto, Ontario, Canada

S. Mayer Sinope Technologies,

St-Jean-Sur-Richelieu, Québec, Canada

R. Mortazavi Natural Resources Canada, Ottawa, Ontario, Canada

J. Murru CSA Group,

Toronto, Ontario, Canada

A. Rascon Resideo,

Chihuahua, Chihuahua, Mexico

M. Robichaud Ouellet Canada,

L’Islet, Québec, Canada

C. M. Yip SOUPRO Limited, Markham, Ontario, Canada

J. Cheema CSA Group,

Toronto, Ontario, Canada

Project Manager

Preface

This is the fourth edition of CSA C828, Performance requirements for line voltage thermostats used with individual room electric space heating devices. It supersedes the previous editions published in 2013, 2006, and 1999.

This Standard deals with the thermal regulation of line voltage thermostats used with individual room electric space heating devices and also contains an informative annex that covers some power grid issues.

The requirements specified in this Standard are intended to facilitate energy conservation while informative Annex C aims to prevent disturbances such thermostats could create on the power grid.

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 Performance of Thermostats, under the jurisdiction of the Technical Committee on Residential Equipment and the Strategic Steering Committee on Performance, Energy Efficiency, and Renewables, and has been formally approved by the Technical Committee.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. 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 Standard 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 Standard.

4. To submit a request for interpretation of this Standard, please send the following information to

   inquiries@csagroup.org and include “Request for interpretation” in the subject line:

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

   2. provide an explanation of circumstances surrounding the actual field condition; and

   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 available on the Current Standards Activities page at standardsactivities.csa.ca.

5. This Standard is subject to review within five years from the date of publication. Suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to inquiries@csagroup.org and include “Proposal for change” in the subject line:

   1. Standard designation (number);

   2. relevant clause, table, and/or figure number;

   3. wording of the proposed change; and

   4. rationale for the change.

CSA C828:19

Performance requirements for line voltage thermostats used with individual room electric space heating devices

1. Scope

   
   

   1. General

      This Standard specifies performance requirements for thermostats (120 to 240 V) intended for switching of a controlled resistive heating load.

      The models covered by this Standard are as follows:

      1. wall-mounted thermostats used with baseboards, panel convectors, or radiant floors;

      2. built-in thermostats (1000 W up to 1500 W) used in baseboards or panel convectors; and

      3. two-component thermostats.

      
      

   2. Thermostats not covered by this Standard

      Thermostats used exclusively or built-in in the following units are excluded:

      1. fan-forced heaters;

      2. kick space;

      3. fireplaces;

      4. thermal storage heaters;

      5. electric baseboards and convectors incorporating both convection and radiant heating elements;

      6. portable heaters; and

      7. central heating units under the control of a single thermostat.

      
      

   3. Thermal regulation and power grid issues

      The mandatory part of this Standard specifies performance requirements covering thermal regulation. The thermal regulation requirements are based on testing in a dual-climate test chamber. Informative Annex C outlines

      1. proposed limits on the level of some types of emissions that might be generated by thermostats; and

      2. grid impacts that thermostats may help alleviate.

      
      

   4. Terminology

In this Standard, “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.