This is the fifth edition of CSA B149.3, On-Site Approval Code for Fuel Components for Appliances and Appliances, and replaces previous editions published in 2010, 2005 and 2000 by the Canadian Standards Association (CSA). ) as CAN / CSA-B149.3 and in 1989 by the Canadian Gas Association (CGA) as CAN / CGA-B149.3.
This code includes, for convenience, the relevant requirements for equipment and equipment previously found in CSA B149.1 and B149.2.
In this 2015 edition, any significant changes or additions to an article, table, or figure in the previous edition of the code are indicated by the delta symbol in the margin. It should be noted that the indications of change are general and are given for information only; they are not a comprehensive guide to code changes. Therefore, do not rely solely on indications of change to recognize the new requirements. As in past years, the code must be respected as a whole without forgetting the local requirements.
The CSA B149 Installation Code Committee, which is responsible for developing the English version of this code, is made up of representatives of gas inspection authorities, natural gas utilities, propane distributors, equipment and accessories, certification bodies as well as representatives of the Heating, Refrigeration and Air Conditioning Institute of Canada, the Mechanical Contractors Association of Canada and federal government departments.
The French version of this code was prepared by CSA Group based on the English edition published in August 2015, which was approved by the CSA B149 On-site Approval of the Fuel Cylinder Responsive Technical Committee. .
This Code sets out the requirements for fuel components and accessories and their installation in an appliance that uses gas downstream of the manual shutoff valve referred to in Clause 6.18.2 of CSA B149.1. Chapter 13 of this Code sets out the additional requirements for process furnaces, including bakery ovens, process furnaces and atmosphere generators operating at or near atmospheric pressure and used by industry in the treatment process. subjects. The recommended requirements for solid and liquid fuel appliances are set out in Annex H (liquids) and Annex I (solids).
This Code does not apply to:
a) marine terminal or pipeline facilities
(b) gas used as a raw material in petroleum refineries or chemical plants
(c) bulk stations for the storage and handling of liquefied petroleum gas
(d) natural gas for motor vehicles
e) a new device that has an approved standard
(f) a manually operated appliance with a heat input of not more than 20 000 BTU / h (6 kW) for industrial use
g) other fuels not covered by this Code and used in conjunction with gas
Where another fuel is used in the facility and in conjunction with the gas, the safe operation of that fuel must be approved.
The requirements contained in this Code apply only to that part of the appliance that uses gas that meets the definition in section 1.7, an atmosphere gas or a reaction gas.
The requirements contained in this Code apply to new non-certified apparatus and equipment, regardless of their heat output, for which there are no approved standards; in cases where the upgrade of a certified or non-certified service device is required; and programmable logic controllers or microprocessor controls used for flame safety.
The requirements contained in this code may be used to replace or supplement an approved standard, subject to the approval of the competent authority.
In this code, any requirement in which the term gas applies also applies to any or all of the following gases: natural gas, manufactured gas, propane, air and propane mixture propylene, butanes (normal butane or isobutane) and butylenes.
Values expressed in English units are the norm. Values in parentheses are for informational purposes only.
In this code, unless the competent authority decides otherwise, the word shall indicates a mandatory requirement; Should indicates a recommendation or what it is advised but not required to do; and may indicates a possibility or advice. The notes accompanying the articles do not include prescriptions or recommendations. They serve to separate from the text explanations or information that is not properly part of this code. The notes at the bottom of the figures and tables are part of them and can be written as prescriptions. The annexes are qualified as normative (mandatory) or informative (optional) to specify its application.