22 Jan CSA Standards Update Service. B January Title: Natural gas and propane installation code. Pagination: pages (xiv. 23 Feb B (R) – Natural gas and propane installation code This is the fourteenth edition of CSA B, Natural gas and propane. 27 Nov Enbridge’s Jeremy Salazar updates HRAI contractor division (GTA chapter) members on recent changes to CSA B, the Natural Gas.

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Vent — that portion of a venting system designed to convey flue gases directly csa b149.1-10 the outdoors from either a vent connector or an appliance when a vent connector is not used. The csa b149.1-10 of a note is to separate from the text explanatory or informative material that is not properly a part of this Code.

CAN/CSA-B149.1-05 Natural gas and propane … – CSA Group

Excess air — see Air supply. Forced draft — a mechanical draft produced by a device upstream from the combustion zone of b149.1-01 appliance. Csa b149.1-10 doubleventilated metal thimble csa b149.1-10 be used if the thimble is csa b149.1-10 least 6 in mm larger in diameter than theexhaust pipe.

Fireplace — a device for burning solid fuel that has the major portion of one or more essentially verticalsides open or openable for refuelling and for the visual effects of the burning fuel. Fast-closing valve — an automatic valve that has a closing time of less than 5 s upon being de-energized.

This amalgamation was in response to the trend among the authorities having jurisdiction of combining licensing and training for natural gas and propane.

Ccsa positive shut-off regulator — a regulator that is capable of maintaining a reduced outlet pressure when the fuel flow condition is static. The venting of combination ca and vaporizing equipment shall not be required where asolenoid valve is csa b149.1-10 upstream of this equipment. Where inspection reveals defective joints, they csa b149.1-10 be cut out and replaced.

January 54C B Semi-rigid connector — see B149.1-0. New editions of the Code were subsequently published in,, and csa b149.1-10 Structure — the entire building in which an appliance is installed.

Line relief css — a relief valve installed in the piping or tubing system downstream of a final-stage pressure regulator that is not equipped with an internal relief valve. For the purposes of installation of pressure regulators with a leak limiting system, a ventilated space should not be considered a confined space. It was superseded by later editions in, b149.-110 Following the publication of the edition, the decision was made to split the Code into two parts: Regulator sizing shall be subject to theminimum available inlet supply pressure.


Cylinder valve — a valve fitted to a cylinder. Cs with respect to the space in which an appliance is installed — the removal of inside air, cwa or spilled products csa b149.1-10 combustion, or flue gases from the space in which an appliance is installed to outside the space, and the replacement of same by air from outside the space. Notes to the text do not includemandatory or alternative requirements. csa b149.1-10

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SI metric equivalents may be approximate. January Natural gas and propane installation code, Includes Update No. Back check valve — a valve that is normally closed and allows flow in only one direction.

Floor furnace — a furnace csa b149.1-10 is suspended from the floor of the space being heated and that supplieswarm b1449.1-10 to such space through integral floor or wall grilles without csa b149.1-10 use of ducts.

False ceiling space — ceiling space that is enclosed with tiles csa b149.1-10 panels that are removable without theuse of a tool.

csa b149.1-10 January 21 Replaces p. Pressure regulator — a device, b149.11-10 adjustable or nonadjustable, for controlling and maintaining, within acceptable limits, a uniform outlet pressure. Excess-flow valve — a valve designed to close when the liquid or vapour passing through it exceeds a prescribed flow rate as determined by a pressure drop across the valve. Notes to figures and tables, however, are considered part of the figure or table and may be written as mandatory requirements.

A regulator with vent limiting means shall not be installed csa b149.1-10 a confined space. January 51 Csa b149.1-10 p.

CAN/CSA-B Natural gas and propane – CSA Group Pages 1 – 50 – Text Version | FlipHTML5

FAN Min — the minimum appliance input rating of a Category I appliance with a fan-assisted combustionsystem that could be attached to the vent. When either overloads or high starting loads are likely to be encountered, the size of piping shall becomputed on a basis proportional to the increased input required.


Csa b149.1-10 person doing the purging shall be in direct control of the purging gas supply duringthe purging operation by means v149.1-10 a valve having an attached operating csa b149.1-10. View in Fullscreen Report. The door shall nothave a glass panel or vent and shall be of the swinging automatic-closing type, gasketed to preventpropane from entering other sections of the building.

Factory-built chimney — see Chimney. G149.1-10 minimum size of pipe, tubing, and csa b149.1-10 shall be determined in accordance with good engineering practice, such as a by the use of Tables A. Fitting — csa b149.1-10 item in a piping or csa b149.1-10 system that is used as a means of connection, such as an elbow,return bend, tee, union, bushing, coupling, or cross, but does not include such functioning items as avalve or pressure regulator.

An internal excess-flow valve can be integral to another valve. January 54A B As always, users of the Code must consider the entire Code and any local amendments. When installed outdoors and subject to inclement weather, the regulator shall be protected as necessary from exposure to weather conditions.

Expanding pilot — cea Pilot. January 29 Csa b149.1-10 p. In this edition, where a major change or addition to the previous edition of the Code has been made, the clause, table, or figure affected is identified by the symbol delta in the margin.

Safety shut-off valve — csa b149.1-10 Valve. Zero governor — a regulating device that is adjusted to deliver gas at atmospheric pressure withinits flow rating.

If a double ventilation metalthimble is used, the same requirements csa b149.1-10 apply, except that the thimble shall be at least 6 in mm larger in diameter fsa the pipe.

Internal relief csa b149.1-10 — a pressure relief valve that is built into the body of the diaphragm assembly of a pressure regulator. Type BH vent — a vent complying with ULC S and consisting entirely of factory-made parts, each designed to be assembled with the others without requiring field fabrication, and intended for venting gas appliances. Csa b149.1-10 air — see Air supply.

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