Draft Details
- Code for the field approval of fuel-burning ap...
- DRAFT STANDARD
- Legal Notice for Draft Standards
- Preface
- + 1 Scope
- 1.1 Inclusions
- 1.2 Exclusions
- 1.3 Fuel
- 1.4 Application
- 1.5 Types of appliances and controls
- 1.6 Hierarchy
- 1.7 Gas type
- 1.8 Units of measure
- 1.9 Biogas
- 1.10 Terminology
- 2 Reference publications
- 3 Definitions
- + 4 Pressure regulators
- 4.1 General
- 4.2 Independent regulator
- 4.3 Regulator type
- 4.4 Operating tolerance
- 4.5 Bypassing
- 4.6 Pressures greater than 0.5 psig (3.5 kPa)
- 4.7 Bleed vents
- 4.8 Sealed regulators
- 4.9 Certification requirements
- + 5 Pilot supply
- 5.1 Pilot supply utilizing the same fuel source...
- 5.2 Pilot supply utilizing an alternate fuel so...
- + 6 Manual shut-off valves, manual isolation valv...
- 6.1 Manual isolation valves
- 6.2 Requirements for manual and test firing val...
- 6.3 Pilot manual shut-off valve
- 6.4 Pilot test firing valves
- 6.5 Location of test firing valve
- 6.6 Inputs in excess of 12.5 MMBtu/h (3660 kW)
- 6.7 Safety limit controls
- + 7 Pilot safety shut-off valves and burner
- + 7.1 Safety shut-off valves
- 7.1.1 Requirements for safety shut-off valves
- 7.1.2 Inputs equal to or less than 20 000 Btu/h...
- 7.1.3 Inputs greater than 20 000 Btu/h (6 kW) a...
- 7.1.4 Inputs greater than 400 000 Btu/h (120 kW...
- 7.1.5 Inputs greater than 3.5 MMBtu/h (1025 kW)...
- 7.1.6 Valve proving systems (VPS)
- + 7.2 Pilot burners
- 7.2.1 Pilot burners and components
- 7.2.2 Safe and reliable ignition
- 7.2.3 Readily accessible
- 7.2.4 Observing the pilot burner flame
- 7.2.5 Trial-for-ignition period
- 7.2.6 Two or more pilot burners
- 7.2.7 Stability of the designed flame shape
- 7.3 Self-piloted burner
- + 8 Main safety shut-off valves, input flow contr...
- + 8.1 Safety shut-off valves
- 8.1.1 Safety shut-off valve requirements
- 8.1.2 For appliance input in excess of 400 000 ...
- 8.1.3 Proof of closure holding circuit
- 8.1.4 For single burner input up to and includi...
- 8.1.5 For single burner input in excess of 400 ...
- 8.1.6 For single burner input in excess of 5 MM...
- 8.1.7 For single burner input of 12.5 MMBtu/h (...
- 8.1.8 For multiple burner input up to 5 MMBtu/h...
- 8.1.9 For multiple burner input in excess of 5 ...
- 8.1.10 For multiple burner input of 12.5 MMBtu/...
- 8.1.11 Multiple burner appliances with individu...
- 8.1.12 For appliance input of 12.5 MMBtu/h (366...
- 8.1.13 For a complex and integrated facility
- 8.1.14 Automatic vent valve requirements withou...
- 8.1.15 Automatic vent valve requirements with V...
- 8.1.16 VPS certification and approval
- 8.1.17 Automatic vent valve sizing
- 8.1.18 VPS leak detection limit and action upon...
- 8.1.19 Integration into the VPS test sequence
- 8.1.20 VPS test sequence on startup
- 8.1.21 Requirements for VPS test sequence on sh...
- 8.1.22 VPS alarm only conditions
- 8.1.23
- + 8.2 Input flow control systems
- 8.2.1 Input flow control valve
- 8.2.2 Input flow control valve requirements
- 8.2.3 Fuel/air ratio control
- + 8.3 Main burner
- 8.3.1 Construction
- 8.3.2 Design
- 8.3.3 Burner stability
- 8.3.4 Flame stability
- 8.3.5 Combustion airflow control
- 8.3.6 Automatic combustion airflow control
- 8.3.7 Proven combustion airflow by mechanical m...
- 8.3.8 Proven combustion airflow from fans
- 8.3.9 Combustion air pressure safety limit cont...
- 8.3.10 Secondary air locking device
- 8.3.11 Flame supervision
- 8.3.11.1 Trial for ignition of a proven interru...
- 8.3.11.2 Capable intermittent, continuous, or e...
- 8.3.11.3 Incapable intermittent, continuous, or...
- 8.3.11.4 Trial for ignition of a direct spark i...
- 8.3.12 Long burner requirements
- 8.3.13 Multiple burner manifolds
- 8.3.14 Flame observation
- 8.3.15 Proven combustion airflow for nonaerated...
- + 9 Additional requirements for liquid propane va...
- 9.1 Piping
- 9.2 Certification
- 9.3 Hydrostatic overpressure relief valve
- 9.4 Fuel filter
- 9.5 Supply pressure control
- 9.6 VPS and vent valve exclusions
- 9.7 Safety shut-off valves for a single burner ...
- 9.8 Safety shut-off valves for a multiple burne...
- 9.9 Pressure regulator exclusions
- + 10 Applications
- + 10.1 Installation
- 10.1.2 Documentation
- 10.1.2.1 Required documents
- 10.1.2.2 Documents for field approval of simple...
- 10.1.2.3 Additional documents required for fiel...
- 10.1.3 Appliance flue gas testing
- 10.1.4 Appliance clearance requirements from co...
- 10.1.5 Appliance clearance requirements for ser...
- 10.1.6 Appliance access for inspection and main...
- 10.1.7 Fuel venting requirements for poisonous ...
- 10.1.8 Components required for filters and stra...
- 10.1.9 Appliance piping and tubing installation...
- 10.1.10 Minimum piping schedule
- 10.2 Unions and flanges
- + 10.3 Pressure test points
- 10.3.1 Maximum size of pressure test points
- 10.3.2 Pressure test point connection
- 10.3.3 Pressure test point connection
- + 10.4 Pressure ratings and overpressure protecti...
- 10.4.1 Component and accessory pressure ratings...
- 10.4.2 Component and accessory overpressure pro...
- 10.4.3 Input flow control valve overpressure pr...
- 10.4.4 Overpressure protection alternatives
- 10.4.5 Overpressure relief device capacity
- 10.4.6 Monitoring and series regulator requirem...
- 10.5 Multi-purpose components
- + 10.6 Atmospheric and bleed vents for valves, co...
- 10.6.1 Control device venting
- 10.6.2 Regulator venting
- 10.6.3 Diaphragm valve and combination control ...
- 10.6.4 Control device vent line
- 10.6.5 Overpressure relief device vent line
- 10.6.6 Multiple overpressure relief devices to ...
- 10.6.7 Outdoor vent obstruction protection
- 10.6.8 Vent line capacity
- 10.6.9 Heavier-than-air fuel vent line
- 10.6.10 Isolation of a vent line or an overpres...
- + 10.7 Observation of main burner flame and ignit...
- 10.7.1 Burner observation
- 10.7.2 Impracticable burner observation using a...
- 10.8 Pneumatic control systems
- + 10.9 Supplementary requirements for controls an...
- 10.9.1 Control and valve temperature ratings
- 10.9.2 Heated compartments for low temperatures...
- 10.9.3 Heated compartment low temperature limit...
- 10.9.4 Heated compartment low temperature limit...
- 10.10 Hoses for conducting propane and natural ...
- 10.11 Multi-fuel burners
- + 11 Ignition systems
- 11.1 General
- + 11.2 Electric ignition systems
- 11.2.1 Certification of electric ignition syste...
- 11.2.2 Direct spark ignition of pilot burners
- 11.2.3 Direct spark ignition of main burners
- + 11.3 Manual ignition systems
- 11.3.1 Manual ignition of main burners
- 11.3.2 Manual ignition of pilot burners
- + 12 Safety controls
- + 12.1 Combustion safety control systems
- 12.1.1 Basic flame safeguard requirements
- 12.1.2 Instrument air pressure proving device
- 12.1.3 Redundancy and self-monitoring in safety...
- 12.1.4 Intermediate relays in safety critical c...
- 12.1.5 Intermediate relays for safety shut-off ...
- 12.1.6 Disabling, isolating, or bypassing safet...
- 12.1.7 Maintenance and testing purposes
- + 12.2 Prepurge
- 12.2.1 Proven purge basic requirements
- 12.2.2 Proven purge exceptions
- 12.2.3 Purge period controls
- 12.2.4 Atmosphere considerations for purge
- 12.3 Low fire start
- + 12.4 Temperature and pressure safety limit cont...
- 12.4.1 Safety limit controls
- 12.4.2 Low liquid level protection for multi-bo...
- 12.4.3 High temperature limit controls for spac...
- 12.4.4 Flame detector failure mode and self-che...
- + 12.5 Gas pressure safety limit control
- 12.5.1 High gas pressure safety limit control
- 12.5.2 Low gas pressure safety limit control
- 12.5.3 Pilot gas pressure safety limit
- 12.5.3.1 Pilot gas low pressure safety control ...
- 12.5.3.2 Pilot gas low pressure safety control ...
- 12.5.4 Low gas pressure safety limit control ti...
- 12.5.5 Gas pressure safety limit control reset
- + 12.6 Combustion and auxiliary air-supply device...
- 12.6.1 Air flow proving
- 12.6.1.1 General
- 12.6.1.2 Air flow proving for mechanical or pos...
- 12.6.1.3 Air flow proving for variable flow and...
- 12.6.2 Minimum air flow protection for adjustab...
- + 12.7 Programmable controllers
- 12.7.1 General
- + 12.7.2 Programmable controllers
- 12.7.2.1 Designer requirements and single point...
- 12.7.2.2 General requirements for BMS programma...
- + 12.7.2.3 Input and output requirements for BMS ...
- + 12.7.2.3.1 General critical input signal requir...
- 12.7.2.3.2 Critical input signals from field de...
- 12.7.2.3.3 Critical input signal faults and dig...
- 12.7.2.3.4 Redundant devices and voting schemes...
- 12.7.2.4 Controller outputs
- 12.7.2.5 Video interfaces
- 12.7.2.6 Factory and site functional testing
- 12.7.2.7 System documentation
- 12.7.2.8 System training
- + 13 Electrical requirements
- 13.1 Electrical code compliance
- 13.2 Safety control circuit electrical requirem...
- 14 Rating plate
- 15 Initial start-up procedure
- + 16 Additional requirements for process applianc...
- + 16.1 Scope
- 16.1.1 General
- 16.1.2 Exempted locations
- + 16.2 General requirements
- + 16.2.1 Design and installation
- 16.2.1.1 Fire hazards
- 16.2.1.2 Atmospheric gas
- 16.2.1.3 Alarm interlock
- + 16.2.2 Location
- 16.2.2.1 Installation clearances
- 16.2.2.2 Combustible flooring
- 16.2.2.3 Electrical wiring
- + 16.2.3 Accessibility and mounting of controls
- 16.2.3.1 Correct functioning position
- 16.2.3.2 Correct protected position
- + 16.2.4 Explosion relief
- 16.2.4.1 Unobstructed relief dampers
- 16.2.4.2 Size of reliefs
- + 16.2.5 Combustion and auxiliary fans and contro...
- 16.2.5.1 Airflow proven device
- 16.2.5.2 Motorized dampers
- + 16.3 Gas safety devices
- 16.3.1 General
- 16.3.2 Combustion safety controls
- + 16.3.3 Temperature bypass controllers and their...
- 16.3.3.1 General
- 16.3.3.2 Bypass controller set point
- 16.3.3.3 Operating controller
- 16.4 Ignition systems
- + 16.5 High temperature limit control
- 16.5.1 General
- 16.5.2 High temperature limit interlock
- 16.5.3 Operating controller
- 16.5.4 Certification
- 16.6 Purge cycle
- + 16.7 Gas/air mixers
- + 16.7.1 Gas/air mixture piping
- 16.7.1.1 General
- 16.7.1.2 Piping size
- 16.7.1.3 Mixture pipe length
- 16.7.1.4 Pressure loss
- 16.7.1.5 Flow control valves
- 16.7.2 Mixer adjustments
- + 16.7.3 Mixing blowers
- 16.7.3.1 General
- 16.7.3.2 Piping and control compliance
- 16.7.3.3 Permanent inlet air
- + 16.7.4 Mechanical gas/air mixers
- 16.7.4.1 Upper explosive limit
- 16.7.4.2 Explosive range
- 16.7.4.3 Interlocks
- 16.7.4.4 Electrical wiring requirements
- + 16.7.5 Automatic fire-checks
- 16.7.5.1 Fire checks with flammable mixtures
- 16.7.5.2 Location of fire checks
- + 16.8 Radiant-tube heating systems
- 16.8.1 Pre-ignition
- 16.8.2 Venting system
- 16.8.3 Safety shut-off valve
- 16.8.4 Flame supervision
- + 16.9 Atmosphere generators
- + 16.9.1 Exothermic generators
- 16.9.1.1 Pressure regulator
- 16.9.1.2 Low gas pressure switch
- 16.9.1.3 Manual reset safety valve
- 16.9.1.4 Manual reset safety valve location
- 16.9.1.5 High gas pressure switch
- 16.9.1.6 Diaphragm vent opening
- 16.9.1.7 Low air pressure switch
- 16.9.1.8 Flame failure response time
- 16.9.1.9 Interrupted gas pilot
- 16.9.1.10 Trial for Ignition
- 16.9.1.11 Supervisory valve systems
- 16.9.1.12 Fire check
- 16.9.1.13 Unwanted atmosphere gas
- + 16.9.2 Endothermic generators
- 16.9.2.1 General
- 16.9.2.2 Pressure regulator
- 16.9.2.3 Low gas pressure switch
- 16.9.2.4 Manual reset safety valve
- 16.9.2.5 Manual reset safety valve location
- 16.9.2.6 High gas pressure switch
- 16.9.2.7 Diaphragm vent opening
- 16.9.2.8 Low air pressure switch
- 16.9.2.9 Supervisory valve systems
- 16.9.2.10 Reliable means of ignition
- 16.9.2.11 Supervised interrupted gas pilot
- 16.9.2.12 High temperature limit
- 16.9.2.13 Fire check
- 16.9.2.14 Reaction gas
- 16.9.2.15 Pressure regulator
- 16.9.2.16 Low gas pressure switch
- 16.9.2.17 Manual reset
- 16.9.2.18 Manual shut off valve
- 16.8.2.19 High gas pressure switch
- 16.9.2.20 Low gas pressure switch
- 16.9.2.21 Reaction air supply
- 16.9.2.22 Temperature limit
- 16.9.2.23 Fire check
- 16.9.2.24 Unwanted atmosphere gas
- 16.10 Class A ovens
- + 16.10.1 General
- 16.10.2 Rating plate
- 16.10.3 Fire protection
- + 16.10.4 General safety ventilation requirements...
- 16.10.4.1 Determination of safety ventilation
- 16.10.4.2 Chemical properties
- 16.10.4.3 Venting
- + 16.10.5 Interlocks
- 16.10.5.1 General
- 16.10.5.2 Poof of combustion
- 16.10.5.3 Wye-delta voltage
- 16.10.5.4 Recommended test for air proving
- 16.10.5 .5 Access interlock
- 16.10.5.6 Risk-based entry
- + 16.10.6 Determination and calculation of requir...
- 16.10.6.1 Temperature correction
- 16.10.6.2 Altitude correction
- + 16.10.7 Method for calculating ventilation rate...
- 16.10.7.1 Ventilation rate parameters
- 16.10.7.2 Products of combustion ventilation
- + 16.10.8 Method for calculating ventilation rate...
- 16.10.8.1 Powder coating ovens
- + 16.10.9 Continuous process ovens
- 16.10.9.1 Ventilation rate
- 16.10.9.2 Vapour indicator
- 16.10.9.3 LFL correction
- 16.10.9.4 Methods for determining solvent safet...
- 16.10.9.5 Method for estimating solvent safety ...
- + 16.10.10 Batch process ovens
- 16.10.10.1 Vapour ventilation
- 16.10.10.2 Ventilation rate calculation
- 16.10.11 Low-oxygen atmosphere Class A ovens wi...
- + 17 Generators, compressors/pressure boosters, e...
- 17.1 General requirements
- + 17.2 Compressors/pressure boosters
- 17.2.1 Low pressure cut off
- 17.2.2 Vibration isolation
- 17.2.3 High gas pressure limit control
- 17.2.4 Application
- + 17.3 Engines and turbines
- 17.3.1 Emergency generators
- 17.3.2 Requirements
- 17.3.3 Safety shut-off valves for input up to 1...
- 17.3.4 High and low gas pressure safety limit c...
- 17.3.5 For input greater than 12.5 MMBtu/h (3.6...
- 17.3.6 Overcrank protection
- 17.3.7 Lock-up pressure regulator
- 17.3.8 Over-pressure protection
- 17.3.9 Venting of pressure control devices
- + 17.4 Additional requirements for engines and tu...
- 17.4.1 Installation
- 17.4.2 Gas detection
- 17.5 Rating plate
- + 18 Flare pilot
- + 18.1 General
- 18.1.1 Flare pilot application scope
- 18.1.2 Flare component exclusion from flare pil...
- 18.1.3 Remote flame front generator prohibited ...
- 18.1.4 Flare pilot performance
- 18.1.5 Flare pilot process and enrichment valve...
- 18.1.6 Flare pilot liquid propane valve train r...
- + 18.2 Valves for flare pilots
- + 18.2.1 Manual shut-off valves
- 18.2.1.1 Manual shut-off valve material tempera...
- 18.2.1.2 Manual shut-off valve certification
- 18.2.1.3 Manual shut-off valve for flame front ...
- 18.2.1.4 Manual shut-off valve installation loc...
- 18.2.1.5 Manual shut-off valve for flame front ...
- 18.2.1.6 Manual shut-off valve for enriching va...
- + 18.2.2 Flare pilot manual isolation valves
- 18.2.2.1 Isolation valve material temperature p...
- 18.2.2.2 Isolation valve certification
- 18.2.2.3 Isolation valves for continuous flare ...
- + 18.2.3 Safety shut-off valves
- 18.2.3.1 Safety shut-off valves for automatic g...
- 18.2.3.2 Safety shut-off valves for automatic g...
- 18.2.3.3 Safety shut-off valves for automatic g...
- 18.2.3.4 Safety shut-off valves for automatic g...
- 18.2.3.5 Safety shut-off valves for automatic g...
- 18.2.4 Automated valves
- + 18.2.5 Other valves
- 18.2.5.1 Backflow prevention for enriching fuel...
- 18.2.5.2 Backflow prevention for compressed air...
- 18.2.5.3 Valve trim for gas-air mixtures
- + 18.3 Fuel conditioning for flare pilots
- 18.3.1 Fuel conditioning device
- 18.3.2 Fuel conditioning device indication
- 18.3.3 Fuel conditioning device for continuous ...
- + 18.4 Pressure regulators for flare pilots
- 18.4.1 Number of pressure regulators
- 18.4.2 Pressure regulator indication
- 18.4.3 Pressure regulator performance
- 18.4.4 Flare pilot pressure regulator bypass li...
- 18.4.5 Flare pilot pressure regulator bypass li...
- 18.4.6 Pressure regulators for continuous flare...
- + 18.5 Overpressure protection devices for flare ...
- 18.5.1 Flare pilot component and accessory pres...
- 18.5.2 Flare pilot component and accessory over...
- 18.5.3 Flare pilot overpressure protection alte...
- 18.5.4 Flare pilot overpressure relief device c...
- 18.5.5 Flare pilot monitoring and series regula...
- 18.5.6 Overpressure protect alternatives for co...
- 18.6 Vents for flare pilot valve train componen...
- + 18.7 Installation of flare pilots
- 18.7.1 General installation of flare pilots
- 18.7.2 Fuel hose certification for flare pilots...
- 18.7.3 Flare pilot piping, tubing, and hose ins...
- 18.7.4 Flare pilot outdoor vent obstruction pro...
- 18.7.5 Construction and labelling of FFG transm...
- + 18.7.6 Piping and tubing materials of construct...
- 18.7.6.1 Material performance for flare pilot p...
- 18.7.6.2 Mechanical performance of FFG transmis...
- 18.7.6.3 Corrosion allowance for stainless stee...
- 18.7.6.4 Corrosion allowance for carbon steel F...
- 18.7.6.5 Threaded fittings in FFG transmission ...
- + 18.7.7 Location
- 18.7.7.1 Flare pilot clearance requirements for...
- 18.7.7.2 Ground level flame front generator res...
- 18.7.7.3 Hazardous area requirements for flame ...
- + 18.8 Ignition, instrumentation, and alarming fo...
- 18.8.1 Automatic ignition for continuous flare ...
- 18.8.2 Flame detection for continuous flare pil...
- 18.8.3 Ignition for continuous flare pilot oper...
- 18.8.4 Loss of flame requirements for continuou...
- 18.8.5 Alarm requirements for continuous flare ...
- + 18.9 Management systems
- 18.9.1 Management systems for continuous flare ...
- 18.9.2 Management systems for flare pilot opera...
- 18.9.3 Management system record
- 19 Appliances in a complex and integrated facil...
- + 20 Additional requirements for portable applian...
- 20.1 General
- 20.2 Marking
- + 20.3 Instructions
- 20.3.1 General
- 20.3.2 Checklist
- 20.4 Approved time on site
- 20.5 Vent lines
- + Annex A (informative)
- A.1 General
- A.2 First cycle
- A.3 Second cycle
- A.4 Third cycle
- A.5 Fourth cycle
- + A.6 Fifth cycle pilot turndown test
- A.6.1 Pilot turndown test procedure
- A.6.1.1 General
- A.6.1.3 Light-off cycle
- A.6.2 Pilot turndown test results
- + Annex B (informative)
- Figure B.1
- Figure B.2
- Figure B.3 a)
- Figure B.3 b)
- Figure B.4 a)
- Figure B.4 b)
- Figure B.5 a)
- Figure B.5 b)
- Figure B.6 a)
- Figure B.6 b)
- Figure B.7 a)
- Figure B.7 b)
- Figure B.8 a)
- Figure B.8 b)
- Figure B.8 c)
- Figure B.8 d)
- Figure B.9
- Figure B.10 a)
- Figure B.10 b)
- Figure B.10 c)
- Figure B.11 a)
- Figure B.11 b)
- Figure B.11 c)
- Figure B.11 d)
- Figure B.11 e)
- Figure B.11 f)
- Figure B.11 g)
- Annex C (informative)
- + Annex D (informative)
- D.1 Definition
- D.2 Guidelines
- + Annex E (informative)
- E.1 Definitions
- E.2 Uses of VPS
- E.2.1 VPS used as an alternative to a double bl...
- E.2.2 VPS used as an alternative to valve seat ...
- E.2.3 VPS used in combination with a double blo...
- E.3 How a VPS determines seat leakage and what ...
- E.4 VPS Sequence using pressure decay and press...
- E.4.1 Introduction
- E.4.2 Preparation
- E.4.3 Testing of SSV1
- E.4.4 Testing of SSV2
- E.4.5 Valves
- E.4.6 Pressure-measuring device (pressure switc...
- E.4.7 VPS programming unit
- E.5 Recommended leak detection limit
- E.6 Example of calculating leak detection limit...
- + Annex F (informative)
- F.1 Oxygen safety devices
- F.2 Materials of construction and cleaning
- F.3 Oxygen-enriched burners
- + Annex G (informative)
- + G.1 Design and construction
- G.1.1 Design and construction certification
- G.1.2 Additional design and construction certif...
- G.2 Installation and operation
- + G.3 Functional testing
- G.3.1 High-pressure function testing
- G.3.2 Flue gas function testing
- G.3.3 Flue gas requirements for fuel bound sulp...
- + Annex H (informative)
- + H.1 Design and construction
- H.1.1 Design and construction certification
- H.1.2 Additional design and construction certif...
- H.2 Installation and operation
- H.3 Functional testing
- + Annex I (informative)
- + I.1 Scope
- I.1.1 General application
- I.1.2 Legislative requirement for application
- I.1.3 Minimum appliance features for applicatio...
- I.1.4 Excluded appliances
- I.2 Definitions
- + I.3 Quality management system (QMS)
- I.3.1 Development and implementation of QMS
- I.3.2 Preapproval of QMS
- I.3.3 Minimum QMS requirements
- + I.4 Team competence
- I.4.1 Minimum team composition, experience, and...
- I.4.2 Invitation to the authority having jurisd...
- + I.5 Risk-based process
- + I.5.1 Hazardous scenario identification
- I.5.1.1 Identification of hazardous scenarios
- I.5.1.2 Appliance phases of operation to be con...
- I.5.1.3 Invitation to the authority having juri...
- I.5.2 Consequence analysis
- I.5.3 Likelihood analysis
- I.5.4 Risk estimation
- + I.5.5 Risk criteria
- I.5.5.1 Establishment of risk criteria
- I.5.5.2 Guideline to establish risk criteria
- I.5.6 Risk reduction
- + I.5.7 New components
- I.5.7.1 Listed certification requirements of co...
- I.5.7.2 Non-listed certification requirements o...
- + I.6 On-going inspection, testing, and maintenan...
- I.6.1 On-going inspection program
- I.6.2 Testing program
- I.6.3 Maintenance program
- I.6.4 Employee training
- I.6.5 Third party employee training
- + I.7 List of requirements
- I.7.1 Documentation of the list of requirements...
- I.7.2 Risk reduction measures documented in the...
- I.7.3 Inspection, testing and maintenance docum...
- I.7.4 List of requirements for new installation...
- I.7.5 List of requirements for existing install...
- I.7.6 Component and accessories documentation w...
- I.7.7 Certification of the list of requirements...
- Table I.1
- Table I.2
- + Annex J (informative)
- J.1 General
- J.2 Definitions
- + J.3 Fuel storage
- J.3.1 General requirements for tanks
- J.3.2 Appurtenances material compatibility
- J.3.3 Tank inlet and outlet markings
- J.3.4 Welding
- J.3.5 Field welding
- J.3.6 Excess flow valve on cylinders
- J.3.7 Protection of valves, connections, and ga...
- J.3.8 Container installation for vapour fuel
- J.3.9 Quick coupling use
- J.3.10 Tank relief valve
- J.3.11 Cylinder relieve valve
- J.3.12 Component or equipment restriction betwe...
- J.3.13 Relief valve installation
- J.3.14 Hydrostatic relief valve
- J.3.15 Fixed-liquid-level gauge
- J.3.16 Fixed-liquid-level gauge design
- J.3.17 Dip tube
- J.3.18 Fixed-liquid-level gauge remote installa...
- J.3.19 Liquid propane withdrawal connection
- J.3.20 Excess flow valve on cylinders
- J.3.21 Direct-fill tank filler valve
- J.3.22 Remote filling connection
- J.3.23 Shut-off valve
- J.3.24 Stop valve
- J.3.25 Tanks installed with stop valves
- J.3.26 Propane fill valve connection
- J.3.27 Shut-off valve accessibility
- J.3.28 Float gauges
- J.3.29 Tanks located in a corrosive environment...
- J.3.29.1 Tanks located outside of an enclosed s...
- J.3.29.2 Tanks located in an enclosed space
- J.3.29.3 Additional tank markings
- J.3.30 Fill connection for vehicles with multip...
- J.3.31 Use of back check valves with multiple t...
- J.3.32 Tank installation integrity
- J.3.33 Tank attachment requirements
- J.3.33.1 Bolts
- J.3.34 Tank mounting brackets installation
- J.3.35 Inspection prior to return to service
- J.3.36 Inspection documentation
- J.3.37 Inspection documentation retention
- J.3.38 Filling connection location
- J.3.39 Maximum quantity of propane
- J.3.40 Container protection
- J.3.41 Road clearance for fuel system tank and ...
- J.3.42 Road clearance for cylinder cabinet
- J.3.43 Protection of valve, connections, and ga...
- J.3.44 Protection of remote filling and gauging...
- J.3.45 Cabinets with removable features
- J.3.46 Corrosion testing
- J.3.47 Tanks located in an enclosed space of a ...
- J.3.47.1 Rigid gas-tight assembly
- J.3.48 Cylinders installed in a vehicle
- J.3.49 Cabinet or recess ventilation
- J.3.50 Performance requirement to secure fuel c...
- + J.4 Distribution of gas (piping/tubing)
- J.4.1 Drain and plug location
- J.4.1.2 Piping material
- J.4.1.3 Fittings used with steel pipe
- J.4.1.4 Vapour phase piping
- J.4.1.5 Tubing fittings
- J.4.1.6 Joint locations
- J.4.1.7 Sheathing of copper tubing
- J.4.1.8 Hose assemblies utilized in liquid serv...
- J.4.1.9 Hose and hose fittings utilized in vapo...
- J.4.1.10 Size
- J.4.1.11 Distribution blocks
- J.4.1.12 Cleaning of pipe and pipe fittings
- J.4.1.13 Reaming of pipe ends
- J.4.1.14 Piping, tubing, and hose supports
- J.4.1.15 Reserve fuel systems
- J.4.1.16 Capping and plugging requirements
- J.4.1.17 Use of threaded pipe
- J.4.1.18 Acceptable thread tapering
- J.4.1.19 Use of joint sealant and joint tape
- J.4.1.20 Tubing joining methods
- J.4.1.21 Accessibility of joints and connection...
- J.4.1.22 Bulkhead fittings passing into the veh...
- J.4.1.23 Number of joints
- J.4.1.24 Supply line panel protection
- J.4.1.25 Bushings
- J.4.1.26 Thread combination prohibition
- J.4.1.27 Pipe and tube bends
- J.4.1.28 Close nipple prohibition
- J.4.1.29 Vehicle structural integrity
- J.4.1.30 Motion prohibition
- J.4.1.31 Connection between vehicle units
- J.4.1.32 Defective or inferior piping or tubing...
- J.4.1.33 Worm gear clamp prohibition
- J.4.1.34 Fill fitting location
- J.4.1.35 Corrosion protection methods
- J.4.1.36 Vibration protection requirements
- J.4.1.37 Visual inspection
- J.4.1.38 Luggage compartment protection
- J.4.1.39 Exhaust system clearance
- J.4.1.40 Pressure test method
- J.4.1.41 Leak detection of fittings
- J.4.1.42 Repair and replacement testing
- J.4.1.43 Testing after an accident
- J.4.1.44 Relief valve discharge direction
- J.4.1.45 Relief valve discharge conduit sizing
- J.4.1.46 Relief valve discharge conduit materia...
- J.4.1.47 Securing discharge conduit
- J.4.1.48 Aluminum propane tank fuse plug locati...
- J.4.1.49 Vapourizer and pressure regulator sizi...
- J.4.1.50 Vapourizer and pressure regulator inst...
- J.4.1.51 Exhaust gas
- J.4.1.52 Fusible plug prohibition
- + J.4.2 Additional gas distribution requirements
- J.4.2.1 General
- J.4.2.2 Gas distribution manual shut-off valve
- J.4.2.3 Gas distribution manual isolation valve...
- J.4.2.4 Gas distribution piping and connectors
- J.4.2.5 Gas distribution for permanent propane ...
- J.4.2.6 Maximum gas distribution pressure for p...
- J.4.2.7 Gas distribution tubing
- J.4.2.8 Gas distribution testing
- + J.5 Appliances
- J.5.1 Appliance certifications
- J.5.2 Appliance clearance
- J.5.3 Performance requirement to secure applian...
- + J.6 Combustion air supply and flue gas outlet
- J.6.1 Location of combustion air supply and flu...
- J.6.2 Alternative means of supplying combustion...
- J.6.3 Combustion air opening requirements from ...
- + J.7 Exhaust hood and ventilation
- J.7.1 Exhaust system requirements from NFPA 96
- J.7.2 Exhaust system interlock
- J.8 Maintenance
- J.9 Operation manual
- + J.10 Markings
- J.10.1 Rating plate
- + J.10.2 Warning labels
- J.10.2.1 Minimum warning labels
- J.10.2.2 Propane fuel warning label
- J.10.2.3 Refueling warning label
- J.10.2.4 Pilot light warning label
- J.10.3 Label performance requirement
- J.11 Testing
- + Annex K (informative)
- K.1 Automatic safety shut-off valve and vent va...
- + Annex L (informative)
- L.1 Introduction
- L.2 Definitions
- L.3 Referenced Code rules
- L.4 General reasons for area classification
- The decision to classify an area as being haza...
- The decision requires a qualified person to as...
- L.5 Hazardous location determination
- L.5.1 Hazardous location assessment
- L.5.2 Exceptions
- L.6 Hazardous location application
- + Annex M (informative)
- M.1 Installation, operation, and maintenance
- M.2 Installation
- M.2.1 Documented installation instructions for ...
- M.2.2 Additional documented installation instru...
- M.3 Operation
- M.3.1 Operation documentation for appliances
- M.3.2 Additional operation instructions for app...
- M.4 Maintenance
- M.4.1 Maintenance documentation for simple appl...
- M.4.2 Maintenance documentation for appliances ...
- M.4.3 Bypass procedure
- M.4.4 Maintenance
- + Annex N (informative)
- N.1 Scope
- N.1.1 Hydrogen –natural gas blends
- N.1.2 Portable applications
- N.1.3 Limitations
- N.1.4 Other applications
- N.2 Definitions
- N.3 Construction
- N.3.1 Components
- N.3.2 Leakage
- N.3.2.1 Leakage detection
- N.3.2.1.1
- N.3.2.1.2
- N.3.2.1.3
- N.3.2.2 Lower supply pressures
- N.3.2.3 Seals and seats
- N.3.2.3.1
- N.3.2.3.2
- Table N.1
- N.3.3 Material compatibility
- N.3.3.1 General
- Table N.2
- Table N.3
- N.3.3.2 Hydrogen embrittlement
- N.3.4 Valve train
- N.3.4.1
- N.3.4.2
- N.3.5 Flame detection
- N.3.5.1
- N.3.5.2
- N.3.6 Vapourizers
- N.4 Area classification
- N.4.1
- N.4.2
- N.5 Tests
- N.6 Additional rating plate marking
- N.7 Cautionary markings
1.1 Inclusions
This Code contains the requirements for fuel-burning appliances and equipment located downstream of the manual shut-off valve specified in Clause 6.18.2 of CSA B149.1.
1.2 Exclusions
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 that is certified to an approved Standard;
f) a manually operated appliance with an input not exceeding 20 000 Btu/h (6 kW) used for industrial applications;
g) other fuels not covered in this Code and used in combination with gas; and
h) a certified appliance when changing the fuel type with a certified conversion kit for the appliance.
1.3 Fuel
When another fuel is used in the installation and in combination with gas, the safe operation of that fuel needs to be approved.
1.4 Application
Requirements contained in this Code apply only to that portion of an appliance using gas as defined in Clause 1.7, atmosphere gas, and reaction gas.
1.5 Types of appliances and controls
The requirements contained in this Code apply to
a) an appliance that is not certified to an approved Standard;
b) a previously certified or previously field-approved appliance where the certification or approval has been voided due to a modification of the appliance installation or control system; and
c) programmable logic controllers or microprocessor-based controls used for flame safety and fuel/air ratio control.
1.6 Hierarchy
For an appliance for which there is an approved standard, the requirements in this Code may replace or supplement the requirements in an approved standard to achieve a field approval under this Code, with the permission of the authority having jurisdiction (AHJ).
1.7 Gas type
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), butylene, hydrogen and hydrogen – natural gas blends.
1.8 Units of measure
The values given in yard/pound units are the standard. The values given in parentheses are for information only.
1.9 Biogas
When using digester gas, landfill gas or biogas, this Code is to be used in conjunction with CSA B149.6.
1.10 Terminology
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.
You may comment on any section of this document by clicking the “Submit Comment” link at the bottom of the relevant section.