Draft Details

Designation:B149.3
Review start date:Jan 4, 2019
Review end date:Mar 4, 2019
Categories:Energy
Contact email:tarsem.suri(at)csagroup.org
Draft Scope/Description:

1 Scope

1.1

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 13 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 H (liquids) and Annex I (solids).

1.2

This Code does not apply to

1.3

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

1.4 1

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

1.5

The requirements contained in this Code apply

conversion or changes to the control system of a certified or non-certified appliance is required; and

1.6

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

1.7

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.

1.8

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

1.9

In this Code, “shall” indicates a mandatory requirement; “should” indicates a recommendation or that which is advised but not mandatory; and “may” indicates an advisory or optional statement. Notes to the text do not include mandatory or alternative requirements. The purpose of a note is to separate from the text explanatory or informative material that is not properly a part of this Code. Notes to figures and tables, however, are considered part of the figure or table and may be written as mandatory requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

1.10

When using digester gas, landfill gas or biogas, this code shall be used in conjunction with the code CSA B149.6 - Code for digester gas, landfill gas, and biogas generation and utilization.

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