CSA B149.1-15 - Natural gas and propane installation code

Description

B149.1-15, Natural gas and propane installation code Standards Update Service Technical Committee on Installation Code for Natural Gas and Propane Appliances Interprovincial Gas Advisory Council (IGAC) Preface 1 Scope 1.1 1.2 1.3 1.4 1.5 1.6 2 Reference publications 3 Definitions 4 General 4.1 Application 4.1.1 4.1.2 4.1.3 4.1.4 4.2 Approval of appliances, accessories, components, equipment, and material 4.2.1 4.2.2 4.2.3 4.3 Responsibilities of the installer 4.3.1 4.3.2 4.3.3 4.3.4 4.3.5 4.3.6 4.3.7 4.3.8 4.4 Training and quality of labour 4.4.1 4.4.2 4.5 Suitability of use 4.5.1 4.5.2 4.5.3 4.5.4 4.5.5 4.5.6 4.6 Meter and service regulator installations 4.6.1 4.6.2 4.7 Electrical connections and components 4.7.1 4.7.2 4.7.3 4.8 Mobile homes 4.8.1 4.8.2 4.8.3 4.9 Hazardous locations 4.9.1 4.9.2 4.10 Smoking 4.11 Isolation of safety devices 4.12 Leak detection 4.12.1 4.12.2 4.12.3 4.13 Appliance clearances to combustible material 4.13.1 4.13.2 4.13.3 4.13.4 4.14 Accessibility 4.14.1 4.14.2 4.14.3 4.14.4 4.14.5 4.14.6 4.14.7 4.15 Outdoor installations 4.15.1 4.15.2 4.15.3 4.16 Appliances in garages 4.16.1 4.16.2 4.16.3 4.16.4 4.17 Appliance ductwork connections 4.17.1 4.17.2 4.18 Combined heating systems 4.18.1 4.18.2 4.19 Appliances protected by automatic fire-extinguishing systems 4.19.1 4.19.2 4.19.3 4.20 Control of appliances with self-energized pilots 4.21 Defective heat exchangers 4.21.1 4.21.2 4.21.3 4.22 High-altitude installations 4.22.1 4.22.2 4.23 Protection of appliances from physical damage 4.24 Odorization 4.24.1 4.24.2 4.24.3 4.25 Mobile homes and recreational vehicles 4.25.1 4.25.2 4.25.3 4.25.4 4.25.5 4.25.6 4.25.7 4.25.8 4.25.9 4.25.10 5 Pressure controls 5.1 Gas system pressure 5.1.1 5.1.2 5.1.3 5.1.4 5.2 Pressure regulators 5.2.1 General 5.2.2 Additional requirements for pressure regulators for propane applications 5.2.3 Additional requirements for pressure regulators for natural gas applications 5.3 Relief devices 5.4 Hydrostatic relief devices for propane applications 5.4.1 5.4.2 5.5 Venting of pressure control devices 5.5.1 5.5.2 5.5.3 5.5.4 5.5.5 5.5.6 5.5.7 5.5.8 5.5.9 5.5.10 5.5.11 5.6 Appliance and pilot pressure regulators 5.6.1 Appliance and pilot pressure regulators in propane applications 5.6.2 Appliance and pilot pressure regulators in natural gas applications 6 Piping and tubing systems, gas hose, and fittings 6.1 General 6.1.1 6.1.2 6.2 Material 6.2.1 6.2.2 6.2.3 6.2.4 6.2.5 6.2.6 6.2.7 6.2.8 6.2.9 6.2.10 6.2.11 6.2.12 6.2.13 6.2.14 6.2.15 6.2.16 6.2.17 6.2.18 6.2.19 6.2.20 6.2.21 6.3 Size 6.3.1 6.3.2 6.3.3 6.3.4 6.3.5 6.3.6 6.3.7 6.3.8 6.3.9 6.4 Volume of gas to be used for sizing piping and tubing systems 6.4.1 6.4.2 6.4.3 6.5 Allowable pressure and pressure drop 6.5.1 6.5.2 6.5.3 6.6 Extensions 6.6.1 6.6.2 6.7 Location 6.7.1 6.7.2 6.7.3 6.7.4 6.7.5 6.7.6 6.8 Piping practices 6.8.1 6.8.2 6.8.3 6.8.4 6.8.5 6.8.6 6.8.7 6.8.8 6.8.9 6.9 Joints and connections 6.9.1 6.9.2 6.9.3 6.9.4 6.9.5 6.9.6 6.9.7 6.9.8 6.9.9 6.9.10 6.9.11 6.10 Branch piping outlets 6.11 Appliance connections 6.11.1 6.11.2 6.11.3 6.11.4 6.11.5 6.11.6 6.12 Piping outlets 6.12.1 6.12.2 6.12.3 6.13 Drip and dirt pockets 6.13.1 6.13.2 6.13.3 6.13.4 6.13.5 6.13.6 6.14 Prohibited practices 6.14.1 6.14.2 6.14.3 6.14.4 6.14.5 6.14.6 6.14.7 6.14.8 6.15 Underground piping and tubing 6.15.1 6.15.2 6.15.3 6.15.4 6.15.5 6.15.6 6.15.7 6.15.8 6.15.9 6.15.10 6.15.11 6.15.12 6.15.13 6.15.14 6.16 Protection of piping and tubing 6.16.1 6.16.2 6.16.3 6.16.4 6.16.5 6.16.6 6.16.7 6.16.8 6.16.9 6.16.10 6.16.11 6.16.12 6.16.13 6.16.14 6.16.15 6.17 Identification of piping or tubing 6.17.1 6.17.2 6.17.3 6.17.4 6.18 Manual shut-off valves 6.18.1 6.18.2 6.18.3 6.18.4 6.18.5 6.18.6 6.18.7 6.18.8 6.18.9 6.18.10 6.18.11 6.19 Manual-reset valves 6.20 Gas hose and fittings 6.20.1 6.20.2 6.20.3 6.20.4 6.20.5 6.20.6 6.20.7 6.20.8 6.21 Gas connectors 6.21.1 6.21.2 6.21.3 6.21.4 6.21.5 6.21.6 6.21.7 6.21.8 6.22 Testing of piping, tubing, hose, and fittings 6.22.1 6.22.2 6.22.3 6.22.4 6.22.5 6.23 Purging of piping and tubing systems and hose after leak testing 6.23.1 6.23.2 6.23.3 6.23.4 6.23.5 6.23.6 6.23.7 6.23.8 6.23.9 6.24 Purging gas from a piping or tubing system 6.25 Rooftop gas piping and tubing 6.25.1 6.25.2 6.25.3 6.26 Inspection 6.26.1 6.26.2 6.27 Highway vehicles, recreational vehicles, outdoor food service unit, and wash-mobiles 6.27.1 6.27.2 6.27.3 6.27.4 6.27.5 7 Installation of specific types of appliances 7.1 Boilers 7.1.1 7.1.2 7.1.3 7.2 Generators, compressors/pressure boosters, stationary engines, and turbines 7.2.1 General requirements 7.2.2 Compressors/pressure boosters 7.2.3 Emergency use generators 7.2.4 Stationary gas engines and turbines 7.2.5 Stationary gas engines and turbines in buildings 7.3 Carbon dioxide generators 7.3.1 7.3.2 7.3.3 7.4 Commercial-type clothes dryers 7.4.1 7.4.2 7.4.3 7.4.4 7.4.5 7.4.6 7.4.7 7.5 Domestic-type clothes dryers 7.5.1 7.5.2 7.5.3 7.5.4 7.6 Conversions 7.6.1 7.6.2 7.6.3 7.7 Conversion burners 7.7.1 7.7.2 7.7.3 7.8 Conversion of warm air furnaces 7.8.1 7.8.2 7.8.3 7.8.4 7.8.5 7.8.6 7.9 Conversion of ranges 7.9.1 7.9.2 7.9.3 7.10 Counter appliances 7.11 Direct-vent appliances 7.12 Furnaces used with cooling units 7.12.1 7.12.2 7.12.3 7.12.4 7.13 Central furnaces 7.13.1 7.13.2 7.13.3 7.13.4 7.13.5 7.13.6 7.14 Downflow furnaces 7.14.1 7.14.2 7.14.3 7.15 Duct furnaces 7.15.1 7.15.2 7.15.3 7.15.4 7.15.5 7.15.6 7.16 Horizontal furnaces 7.16.1 7.16.2 7.16.3 7.16.4 7.17 Wall furnaces (recessed heaters) 7.17.1 7.17.2 7.17.3 7.18 Construction heaters and torches 7.18.1 7.18.2 7.18.3 7.18.4 7.18.5 7.18.6 7.18.7 7.18.8 7.18.9 7.18.10 7.19 Direct-fired door air heaters 7.19.1 7.19.2 7.19.3 7.19.4 7.20 Direct-fired make-up air heaters (DFMAH) 7.20.1 7.20.2 7.20.3 7.20.4 7.20.5 7.20.6 7.20.7 7.20.8 7.20.9 7.20.10 7.20.11 7.20.12 7.20.13 7.20.14 7.21 Non-recirculating direct gas-fired industrial air heaters (DFIAH) 7.21.1 7.21.2 7.21.3 7.21.4 7.21.5 7.21.6 7.21.7 7.21.8 7.21.9 7.21.10 7.21.11 7.21.12 7.21.13 7.22 Direct gas-fired process air heaters (DFPAH) 7.22.1 7.22.2 7.22.3 7.22.4 7.22.5 7.22.6 7.22.7 7.22.8 7.22.9 7.22.10 7.22.11 7.22.12 7.22.13 7.22.14 7.22.15 7.22.16 7.23 Infrared heaters 7.23.1 7.23.2 7.23.3 7.23.4 7.23.5 7.23.6 7.23.7 7.24 Room heaters 7.24.1 7.24.2 7.24.3 7.24.4 7.24.5 7.24.6 7.24.7 7.24.8 7.25 Decorative appliances and gas logs 7.25.1 7.25.2 7.25.3 7.25.4 7.25.5 7.26 Pool heaters 7.26.1 7.26.2 7.26.3 7.26.4 7.26.5 7.26.6 7.26.7 7.26.8 7.26.9 7.27 Water heaters 7.27.1 7.27.2 7.27.3 7.27.4 7.27.5 7.27.6 7.27.7 7.28 Unit heaters 7.28.1 7.28.2 7.28.3 7.28.4 7.29 Hotplates 7.29.1 7.29.2 7.29.3 7.30 Incinerators 7.30.1 7.30.2 7.30.3 7.30.4 7.30.5 7.30.6 7.31 Lighting 7.31.1 7.31.2 7.31.3 7.32 Commercial cooking appliances 7.32.1 7.32.2 7.32.3 7.32.4 7.32.5 7.32.6 7.33 Residential-type ranges 7.33.1 7.33.2 7.33.3 7.33.4 7.33.5 7.33.6 7.33.7 7.33.8 7.34 Refrigerators 7.34.1 7.34.2 7.34.3 8 Venting systems and air supply for appliances 8.1 General 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.2 Air-supply determination for central-heating furnaces, boilers, and hot-water heaters 8.2.1 8.2.2 8.2.3 8.2.4 8.2.5 8.2.6   8.3 Air-supply openings and ducts 8.3.1 8.3.2 8.3.3 8.3.4 8.3.5 8.3.6 8.3.7 8.4 Air-supply requirements for appliances having a total input exceeding 400 000 Btuh (120 kW) (see Clause 8.1.4) 8.4.1 8.4.2 8.4.3 8.4.4 8.4.5 8.5 Air-supply dampers, louvres, and grilles 8.5.1 8.5.2 8.5.3 8.5.4 8.5.5 8.6 Conditions created by exhaust fans, air-supply fans, circulating fans, or fireplaces 8.7 Engineered installations 8.8 Air supply by mechanical means 8.8.1 8.8.2 8.9 Appliance venting 8.9.1 8.9.2 8.9.3 8.9.4 8.9.5 8.9.6 8.10 Methods of venting appliances 8.10.1 8.10.2 8.10.3 8.10.4 8.10.5 8.10.6 8.10.7 8.10.8 8.10.9 8.10.10 8.10.11 8.10.12 8.10.13 8.10.14 8.11 Vent and chimney requirements 8.12 Chimneys 8.12.1 8.12.2 8.12.3 8.12.4 8.12.5 8.12.6 8.12.7 8.12.8 8.12.9 8.12.10 8.12.11 8.13 Vent and chimney sizing 8.13.1 8.13.2 8.13.3 8.14 Vent and chimney termination 8.14.1 8.14.2 8.14.3 8.14.4 8.14.5 8.14.6 8.14.7 8.14.8 8.14.9 8.14.10 8.14.11 8.14.12 8.14.13 8.15 Vent and chimney support 8.15.1 8.15.2 8.15.3 8.15.4 8.15.5 8.16 Vents and chimneys serving two or more appliances 8.16.1 8.16.2 8.17 Vents outside buildings 8.17.1 8.17.2 8.18 Vent connectors 8.18.1 8.18.2 8.18.3 8.18.4 8.18.5 8.18.6 8.18.7 8.18.8 8.18.9 8.18.10 8.18.11 8.18.12 8.18.13 8.18.14 8.18.15 8.18.16 8.18.17 8.18.18 8.18.19 8.18.20 8.18.21 8.18.22 8.18.23 8.19 Chimney connections 8.19.1 8.19.2 8.19.3 8.19.4 8.20 Size and height of interconnected vent connectors 8.21 Multi-storey venting 8.21.1 8.21.2 8.21.3 8.21.4 8.21.5 8.21.6 8.22 Dampers and attachments 8.23 Draft hoods 8.23.1 8.23.2 8.23.3 8.23.4 8.23.5 8.23.6 8.23.7 8.23.8 8.24 Venting arrangements 8.24.1 8.24.2 8.24.3 8.24.4 8.24.5 8.24.6 8.25 Draft regulators 8.26 Automatic vent damper or automatic flue damper 8.26.1 8.26.2 8.26.3 8.26.4 8.27 Manually operated flue dampers 8.27.1 8.27.2 8.28 Installation of draft-control devices 8.28.1 8.28.2 8.29 Induced- or forced-draft devices 8.29.1 8.29.2 8.30 Venting of appliances into canopies 8.30.1 8.30.2 8.30.3 8.30.4 8.31 Heat reclaimers 8.31.1 8.31.2 9 Natural gas compressors and cylinders 9.1 Installation of compressors 9.1.1 9.1.2 9.1.3 9.1.4 9.1.5 9.1.6 9.1.7 9.2 Requirements for cylinders 9.2.1 9.2.2 9.2.3 9.2.4 9.2.5 9.3 Cylinder filling and cylinders 9.3.1 9.3.2 9.3.3 9.3.4 9.3.5 9.3.6 9.4 Cylinder storage 9.4.1 9.4.2 9.4.3 9.4.4 9.4.5 9.4.6 9.5 Cylinders connected for use 9.5.1 9.5.2 9.5.3 10 Vehicle refuelling appliances (VRA) without storage (for natural gas only) 10.1 Installation 10.1.1 10.1.2 10.1.3 10.1.4 10.1.5 10.1.6 10.1.7 10.2 Pressure relief devices and other vents and vent lines 10.2.1 10.2.2 10.2.3 10.3 Piping, tubing, and hose 10.3.1 10.3.2 10.3.3 10.3.4 10.4 Testing of piping, hose, and fittings 10.5 Installation of safety equipment, signs, and/or symbols 10.6 Refuelling of vehicles Annex A (informative) A.1 General A.2 Description of tables A.2.1 A.2.2 A.2.3 A.2.4 A.2.5 A.2.6 A.3 Use of capacity tables A.3.1 A.3.2 A.3.3 A.3.4 A.3.5 A.3.6 A.3.7 A.3.8 A.3.9 A.4 Bends, fittings, and valves expressed in equivalent lengths in feet of straight pipe Annex B (informative) B.1 General B.2 Description of tables B.2.1    B.2.2 B.2.3 B.2.4 B.2.5 B.3 Use of capacity tables B.3.1 B.3.2 B.3.3 B.3.4 B.3.5 B.3.6 B.3.7 B.3.8 B.3.9 B.4 Bends, fittings, and valves expressed in equivalent lengths in feet of straight pipe Annex C (informative) C.1 General C.1.1 C.1.2 C.1.3 C.2 General Venting Requirements (GVR) C.2.1 C.2.2 C.2.3 C.2.4 C.2.5 C.2.6 C.2.7 C.2.8 C.2.9 C.2.10 C.2.11 C.2.12 C.2.13 C.2.14   C.2.15 C.2.16 Annex D (informative) Annex E (informative) E.1 Piping design sizing (imperial) E.1.1 E.1.2 E.1.3 E.1.4 E.2 Piping design sizing (metric) E.2.1 E.2.2 E.2.3 E.2.4 Annex F (informative) Annex G (informative) G.1 General G.2 Gas piping to rooftop units Annex H (normative) H.1 H.2 H.3 H.4 H.5 H.6 H.7 Annex I (informative) I.1 Abbreviations I.1.1 I.1.2 I.2 Index