CSA B149.3-15 update no. 1 - Code for the field approval of fuel-related components on appliances and equipment

B149.3-15, Code for the field approval of fuel-related components on appliances and equipment
Update No. 1 December 2017
Standards Update Service
Technical Committee on the Code for the Field Approval of Fuel-Related Components on Appliances and Equipment
Interprovincial Gas Advisory Council (IGAC)
Preface
1 Scope
	1.1
	1.2
	1.3
	1.4
	1.5
	1.6
	1.7
	1.8
	1.9
2 Reference publications
3 Definitions
4 Pilot gas valve train
	4.1 Pilot supply
		4.1.1
		4.1.2
		4.1.3
		4.1.4
	4.2 Manual shut-off valves
		4.2.1
		4.2.2
		4.2.3
	4.3 Pressure regulators
		4.3.1
		4.3.2
		4.3.3
		4.3.4
		4.3.5
		4.3.6
		4.3.7
		4.3.8
		4.3.9
	4.4 Overpressure protection devices
		4.4.1
		4.4.2
	4.5 Safety shut-off valves
		4.5.1
		4.5.2
		4.5.3
		4.5.4
		4.5.5
		4.5.6
		4.5.7
	4.6 Test firing valves
		4.6.1
		4.6.2
		4.6.3
		4.6.4
		4.6.5
	4.7 Pilot burners
		4.7.1
		4.7.2
		4.7.3
		4.7.4
		4.7.5
		4.7.6
		4.7.7
		4.7.8
		4.7.9
		4.7.10
	4.8 Safety flare pilots
5 Main gas valve train
	5.1 Manual isolation valves
		5.1.1
		5.1.2
	5.2 Pressure regulators
		5.2.1
		5.2.2
		5.2.3
		5.2.4
		5.2.5
	5.3 Safety shut-off valves
		5.3.1
		5.3.2
		5.3.3
		5.3.4
		5.3.5
		5.3.6
		5.3.7
		5.3.8
		5.3.9
		5.3.10
		5.3.11
		5.3.12
		5.3.13
		5.3.14  
		5.3.15
	5.4 Input flow control systems
		5.4.1
		5.4.2
		5.4.3
	5.5 Test firing valves
		5.5.1
		5.5.2
		5.5.3
		5.5.4
		5.5.5
		5.5.6
	5.6 Main burner
		5.6.1
		5.6.2
		5.6.3
		5.6.4
		5.6.5
		5.6.6
		5.6.7
		5.6.8
		5.6.9
		5.6.10
		5.6.11
		5.6.12
		5.6.13
		5.6.14
		5.6.15
	5.7 Overpressure protection devices
		5.7.1
		5.7.2
		5.7.3
		5.7.4
6 Additional requirements for liquid propane valve trains
	6.1
	6.2
	6.3
	6.4
	6.5
	6.6
7 Applications
	7.1 Installation
		7.1.1
		7.1.2
		7.1.3
		7.1.4
		7.1.5
		7.1.6
		7.1.7
	7.2 Unions and flanges
	7.3 Pressure test points
		7.3.1
		7.3.2
	7.4 Pressure ratings
	7.5 Multi-purpose components
	7.6 Bleed vents for valves, combination controls, pressure regulators, relief valves, and other control devices
		7.6.1
		7.6.2
		7.6.3
		7.6.4
		7.6.5
		7.6.6
		7.6.7
		7.6.8
		7.6.9
		7.6.10
	7.7 Observation of main burner flame and ignition source
		7.7.1
		7.7.2
	7.8 Pneumatic control systems
	7.9 Supplementary requirements for controls and valves subjected to low ambient temperatures
		7.9.1
		7.9.2
	7.10 Hoses and hose fittings
8 Ignition systems
	8.1 General
	8.2 Electric ignition systems
		8.2.1
		8.2.2
		8.2.3
	8.3 Manual ignition systems
		8.3.1
		8.3.2
9 Safety controls
	9.1 Combustion safety control systems
		9.1.1
		9.1.2
		9.1.3
		9.1.4
	9.2 Prepurge
		9.2.1
		9.2.2
		9.2.3
	9.3 Low fire start
	9.4 Temperature and pressure safety limit controls
		9.4.1
		9.4.2
		9.4.3
		9.4.4
	9.5 Gas pressure safety limit control
		9.5.1
		9.5.2
		9.5.3
		9.5.4
	9.6 Auxiliary fans and dampers
		9.6.1
		9.6.2
	9.7 Programmable controllers
		9.7.1 General
		9.7.2 Programmable controllers
10 Electrical requirements
	10.1 Supply
	10.2 Appliance circuits
		10.2.1
		10.2.2
11 Rating plate
12 Initial start-up procedure
	12.1
	12.2
13 Additional requirements for process ovens, process furnaces, and atmosphere generators
	13.1 General requirements
		13.1.1 Design and installation
		13.1.2 Location
		13.1.3 Accessibility and mounting of controls
		13.1.4 Explosion relief
		13.1.5 Auxiliary fans and dampers
	13.2 Gas safety devices
		13.2.1 General
		13.2.2 Combustion safeguards
		13.2.3 Temperature bypass controllers and their temperature-sensing elements
	13.3 Ignition systems
	13.4 High temperature limit control
		13.4.1
		13.4.2
		13.4.3
	13.5 Purge cycle
	13.6 Gas/air mixers
		13.6.1 Gas/air mixture piping
		13.6.2 Mixer adjustments
		13.6.3 Mixing blowers
		13.6.4 Mechanical gas/air mixers
		13.6.5 Automatic fire-checks
	13.7 Radiant-tube heating systems
		13.7.1
		13.7.2
		13.7.3
		13.7.4
	13.8 Atmosphere generators
		13.8.1 Exothermic generators
		13.8.2 Endothermic generators
Annex A (informative)
	A.1 General
	A.2 First cycle
	A.3 Second cycle
	A.4 Third cycle
	A.5 Fourth cycle
Annex B (informative)
Annex C (informative)
Annex D (informative)
	D.1 Definition
	D.2 Guidelines
Annex E (informative)
	E.1 Background
	E.2 Safety flares
		E.2.1
		E.2.2
		E.2.3
		E.2.4
		E.2.5
		E.2.6
		E.2.7
		E.2.8
	E.3 Process flares
		E.3.1
		E.3.2
	E.4 Management systems
Annex F (informative)
	F.1 Relevant codes and standards
	F.2 Definitions
	F.3 Design concept
	F.4 Functional requirements
Annex G (informative)
	G.1 Oxygen safety devices
	G.2 Materials of construction and cleaning
	G.3 Oxygen-enriched burners
Annex H (informative)
	H.1 Design and construction
		H.1.1
		H.1.2
	H.2 Installation and operation
	H.3 Functional testing
		H.3.1
		H.3.2
		H.3.3
Annex I (informative)
	I.1 Design and construction
		I.1.1
		I.1.2
	I.2 Installation and operation
	I.3 Functional testing