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CSA B149.3

Code for the field approval of fuel-burning appliances and equipment

active, Most Current
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Organization: CSA
Publication Date: 1 January 2020
Status: active
Page Count: 344
ICS Code (Installations in buildings): 91.140
ICS Code (Gas supply systems): 91.140.40
scope:

This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of CSA B149.1. Clause 16 of this Code contains additional requirements for process ovens, including bakery ovens, process furnaces, and atmosphere generators operating at approximately atmospheric pressure and used by industry for the processing of materials. Recommended requirements for liquid and solid fuel-burning appliances are located in Annex G (liquids) and Annex H (solids).

This Code does not apply to

a) installations in marine pipeline terminals;

b) gas where used as a feedstock in petroleum refineries or chemical plants;

c) gas designated for storage or handling, or both, at propane gas bulk plants;

d) gas where used for natural gas for vehicles;

e) a new appliance for which there is an approved Standard;

f) a manually operated appliance with an input not exceeding 20 000 Btu/h (6 kW) used for industrial applications; and

g) other fuels not covered in this Code and used in combination with gas.

When another fuel is used in the installation and in combination with gas, the safe operation of that fuel shall be approved.

Requirements contained herein apply only to that portion of an appliance using gas as defined in Clause 1.7, atmosphere gas, and reaction gas.

The requirements contained in this Code apply

a) to new non-certified appliances and equipment of all inputs for which there is no approved Standard;

b) when the upgrading, conversion or changes to the control system of a certified or non-certified appliance is required, unless a certified conversion kit for that appliance is utilized; and

c) to programmable logic controllers or microprocessor-based controls used for flame safety and fuel/air ratio control.

The requirements contained in this Code may be used to replace or supplement an approved Standard with the permission of the authority having jurisdiction.

When the term "gas" is used, the requirements of this Code include, and apply equally to, any of the following gases or mixtures of them: natural gas, manufactured gas, propane, propane air, propylene, butane (normal butane or isobutane), and butylene.

The values given in yard/pound units are the standard. The values given in parentheses are for information only.

When using digester gas, landfill gas or biogas, this Code is to be used in conjunction with CSA B149.6.

In this Code, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Code; "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 Code.

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 (non-mandatory) to define their application.

Document History

CSA B149.3
January 1, 2020
Code for the field approval of fuel-burning appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2015
Code for the field approval of fuel-related components on appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2015
Code for the field approval of fuel-related components on appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2010
Code for the field approval of fuel-related components on appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2010
Code for the field approval of fuel-related components on appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2005
Code for the field approval of fuel-related components on appliances and equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2005
Code for the Field Approval of Fuel-Related Components on Appliances and Equipment
This Code contains the requirements for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual shut-off valve specified in Clause 6.18.2 of...
January 1, 2000
Code for the Field Approval of Fuel-Related Components on Appliances and Equipment
This Code contains the requirements, which include valve train diagrams, for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual...
January 1, 2000
Code for the Field Approval of Fuel-Related Components on Appliances and Equipment
This Code contains the requirements, which include valve train diagrams, for fuel-related components and accessories and their assembly on an appliance utilizing gas, downstream of the manual...

References

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