ASME A112.19.7-2020/CSA B45.10:20

National Standard of Canada

Hydromassage bathtub systems

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ASME A112.19.7-2020/CSA B45.10:20

April 2020

Title: Hydromassage bathtub systems

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ASME A112.19.7-2020/CSA B45.10:20 Hydromassage bathtub systems

Contents

ASME A112 Standards Committee on Plumbing Materials and Equipment 3

ASME A112.19.7 Project Team on Whirlpool Bathtub Appliances 7

CSA Technical Committee on Plumbing Fixtures 9

CSA/ASME Joint Harmonization Task Group on Plumbing Fixtures 14

Preface 16

1. Scope 18

   
   

2. Reference publications 19

   
   

3. Definitions and abbreviations 20

   1. Definitions 20

   2. Abbreviations 21

      
      

4. General requirements 21

   1. Electrical requirements 21

   2. Plumbing fixtures 21

   3. Plumbing supply fittings 21

   4. Piping and tubing 22

      1. Copper 22

      2. Plastic 22

      3. Flexible hoses 22

      4. Alternative materials 22

   5. Solvent cements for use with flexible piping 22

   6. Suction fittings 22

   7. Circulation system installation 22

   8. Pump or blower 23

   9. Field-assembled or retrofitted bathtubs 23

   10. Backflow prevention 23

   11. Suction fitting assemblies (whirlpool bathtubs only) 23

   12. Suction fitting cover apertures 23

       
       

5. Testing 23

   1. Installation 23

   2. Water retention in whirlpool or air-jetted bathtubs 23

      1. General 23

      2. Preconditioning 24

      3. Performance 24

      4. Chlorine test 24

      5. Volumetric test 27

   3. Physical tests for suction fittings (whirlpool bathtubs only) 27

      1. General 27

      2. Test conditions 27

         
         

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         ASME A112.19.7-2020/CSA B45.10:20 Hydromassage bathtub systems

         
         

         
         

      3. Surface evaluation 28

      4. Deflection test 28

      5. Shear load test 28

      6. Vacuum and point impact test 29

   4. Hair entanglement test for suction fittings 29

      1. General 29

      2. Test preparation 29

      3. Test with the fitting affixed to the test fixture 30

      4. Test with the fitting affixed to the bathtub 31

         
         

6. Markings and installation instructions 32

   1. General 32

   2. Factory-assembled whirlpool or air-jetted bathtubs 32

   3. Field assemblies and retrofitted bathtubs (whirlpool bathtubs only) 32

   4. Suction fittings (whirlpool bathtubs only) 32

   5. Installation instructions 33

      1. General 33

      2. Factory-assembled whirlpool or air-jetted bathtubs 33

      3. Roughing-in dimensions 33

      4. Service access and controls 33

      5. Electrical 33

      6. Operation, use, and care instructions 33

      7. Flushing instructions 33

Annex A (informative) — Unit conversion and rounding criteria 41

Annex B (normative) — Random sampling method for testing bathtubs 42

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ASME A112.19.7-2020/CSA B45.10:20 Hydromassage bathtub systems

Preface

This is the second edition of ASME A112.19.7/CSA B45.10, Hydromassage bathtub systems.

It supersedes the previous edition published in 2012.

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

This Standard was prepared by the ASME/CSA Joint Harmonization Task Group on Plumbing Fixtures, under the jurisdiction of the ASME Standards Committee on Plumbing Materials and Equipment and the CSA Technical Committee on Plumbing Fixtures. The CSA Technical Committee operates under the jurisdiction of the CSA Strategic Steering Committee on Construction and Civil Infrastructure. This Standard has been formally approved by the ASME A112 Standards Committee and the CSA 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.

This Standard was approved as an American National standard by the American National Standards Institute on March 5, 2020.

ASME Notes:

1. This standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed Standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

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6. ASME issues written replies to inquiries concerning interpretation of technical aspects of this Standard. All inquiries regarding this Standard, including requests for interpretations, should be addressed to: Secretary, A112 Standards Committee

   The American Society of Mechanical Engineers Two Park Avenue

   New York, NY 10016-5990

   
   

   A request for interpretation should be clear and unambiguous. The request should

   • cite the applicable edition of the Standard for which the interpretation is being requested.

   • phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information.

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ASME A112.19.7-2020/CSA B45.10:20 Hydromassage bathtub systems

ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee.

Interpretations are published on the ASME Web site under the Committee Pages at https://cstools.asme.org/ as they are issued.

CSA Notes:

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

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4. 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.

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   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.

6. Attention is drawn to the possibility that some of the elements of this Standard may be the subject of patent rights. CSA Group is not to be held responsible for identifying any or all such patent rights. Users of this Standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.

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ASME A112.19.7-2020/CSA B45.10:20 Hydromassage bathtub systems

ASME A112.19.7-2020/CSA B45.10:20

Hydromassage bathtub systems

1 Scope

1.1

This Standard specifies general requirements, test methods, and markings for whirlpool and air-jetted bathtubs and suction fittings used in hydromassage bathtub systems that incorporate a bathtub and circulation pump. The circulation pump can be with or without

1. a piping system; and

2. induction of air (which can be achieved by integral suction or through an air pump).

1.2

This Standard does not cover

1. spas and hot tubs covered in CAN/CSA-C22.2 No. 218.1 and UL 1563;

2. portable hydromassage products covered in CSA Electrical Bulletin 1268 and CSA Electrical Bulletin 1270; and

3. hydrotherapy bathtubs or patient bathing systems for institutional use.

1.3

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.

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.

1.4

SI units are the units of record in Canada. In this Standard, the inch/pound units are shown in parentheses.

The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non- conformance with this Standard.

All references to gallons are to U.S. gallons.

For information on the conversion criteria used in this Standard, see Annex A.

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