CAN CSA-B PDF – CAN/CSA-B, Natural gas and propane installation code. January Note: General Instructions for CSA Standards are now called. 1 Aug CAN/CSA B January Natural Gas and Propane Installation Code, Includes Supplement No. 1 and Update No. 1. Historical. 1 Jan CAN/CSA BU Update No. 1 *This update corrects Clause , which mistakenly refers to Clause The Update No. 1 revises.

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It now consists of the following pages: Venting system — a system for the removal of flue gases to the outdoors by means of a chimney, vent connector, vent, or a natural or mechanical exhaust system. For service lines supplying large industrial customersand installations where gas is used at higher than standard service pressure, it shall be permissible toinstall the regulators at other readily accessible locations.

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.

Clearance to the tub must be maintained can csa-b Canadian gas standards adopted as B.

Except for direct vent water heaters, when the csa-g149.1-05 heater is contained in an xan, permanent openings shall be provided as described in Clause 8. Internal valve — a valve designed and installed csa-b Such protection shall extend the full length and width of the heater and its draft hood. Equipment — a device, other than an appliance, accessory, or component, that is connected to a pipingor tubing system.


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Point in Time – Safety Standards Act

This increase shall be made at the connection on the device. Gas turbine may also refer to the turbine element. Valve train — the combination of valves, controls, and piping and tubing of an appliance upstream from the manifold through which csa-b149.1–05 is supplied to the appliance cea-b149.1-05 by which gas is controlled. Where outside meters and regulators are installed in locations that do not afford reasonable protectionfrom damage, such protection shall be provided.

January 81 Replaces p. Travel trailer — a vehicular portable structure intended to be towed by a motor vehicle and that does not fold up or reduce in size for transit. Internal valve — a valve designed and installed so that its seat is within a tank and the arrangement of the parts of the valve is such that damage to the parts outside the tank will not prevent effective seating of the valve. The minimum clearance may be reduced when a substantial guard is provided to prevent vehicles from striking the heater.

If an appliance with a draft-control device and an appliance without a draft-control device are installed within the same structure or enclosure, the required free area of the air supply opening shall be the greater of a that required by Table 8.

CAN CSA-B149.1-05 PDF

Flue baffle — see Baffle. Motorized home — a vehicular portable structure of self-propelled design. Notes to the text do not includemandatory or alternative requirements. Any unserviceable parts shall be repaired or replaced.

For natural gas having a relative density otherthan csa-149.1-05. Circumstances can require test pressures and test durations in excess of those shown in the Table. The minimumsize of pipe, tubing, and fittings shall be determined in accordance with Clause 6. The purpose of a note is to separate from the text explanatory orinformative material that is not properly a part of this Code.


Regulator sizing shall be subject to theminimum available inlet supply pressure. Users of the Code are advised that the change markers in the text are not intended to be all-inclusive and are csa-b419.1-05 as can csa-b Annex Bis based on propane of 1. A regulator with vent limiting means shall not be installed in a confined space.

CAN/CSA-B Natural gas and propane – CSA Group Pages 51 – 72 – Text Version | FlipHTML5

Legends to figures arealso written as mandatory requirements. January 75 Replaces p. The relieving pressure setting of the line relief device shall be not higher than that of the lowest-rated component or accessory located downstream.

January vsa-b149.1-05 Replaces p. Forced draft — a mechanical draft produced by a device upstream from the combustion zone of an appliance. The ground shall first be cxa-b149.1-05 and provided with gravel for drainage. An internal excess-flow valve can be integral to another valve. The applicable procedures in Clause 6. Pressure regulator — a device, either adjustable or nonadjustable, for can csa-b