Gas Installation Technology [Pehme köide]

Introduction		xi
Acknowledgements		xii
Abbreviations and Acronyms		xv
Part 1 The Gas Industry		1	(18)
The Gas Industry		2	(2)
Nationally Accredited Certification Scheme for Individual Gas Fitting Operatives (ACS)		4	(2)
Required ACS Assessments and Flowcharts		6	(4)
Legislation Affecting the Gas Installer 1		10	(2)
Legislation Affecting the Gas Installer 2		12	(2)
Industry Documents and British Standards		14	(2)
Gas Safety (Installation and Use) Regulations		16	(3)
Part 2 Gas Utilisation		19	(50)
Gas: Its Origin		20	(2)
Characteristics and Properties of Gases		22	(4)
Liquefied Petroleum Gas (LPG)		26	(2)
The Combustion Process		28	(2)
Air Requirements for Combustion		30	(2)
Products of Combustion		32	(2)
The Gas Flame		34	(2)
Flame Pattern and Characteristics		36	(2)
Atmospheric Burners		38	(2)
Pre-Mix Burners		40	(2)
Gas Pressure and Flow		42	(2)
Gas Pressure Readings		44	(2)
Quick Reference Guide to Taking Pressures		46	(2)
Estimating a Suitable Pipe Size		48	(2)
Domestic Natural Gas Pipe Sizing		50	(2)
Commercial Pipe Sizing		52	(2)
Determining Existing Losses due to Pipe Size		54	(2)
Gas Rates and Heat Input		56	(2)
Quick Reference Tables: Gas Rate/Heat Input		58	(2)
The Physical Laws Relating to Gas		60	(2)
Measurement of Gas 1		62	(2)
Measurement of Gas 2		64	(5)
Part 3 Gas Controls		69	(44)
Quarter Turn Gas Control Valves		70	(2)
Screw Down Gas Control Valves		72	(2)
Spring Loaded Gas Control Valves		74	(2)
Electrically Operated Gas Control Valves		76	(2)
Heat Operated Gas Control Valves		78	(2)
Pressure Operated Controls Valves		80	(2)
Low and High Pressure Cut-Off Devices		82	(2)
Pressure Regulators		84	(4)
LPG Regulators 1		88	(2)
LPG Regulators 2		90	(2)
Flame Supervision Devices		92	(6)
Testing Flame Supervision Devices		98	(2)
Thermostatic Control		100	(2)
Multifunctional Gas Valve 1		102	(2)
Multifunctional Gas Valve 2		104	(2)
Ignition Devices		106	(2)
Vitiation Sensing Devices		108	(2)
Pressure and Flow Proving Devices		110	(3)
Part 4 Installation Practices		113	(44)
Polyethylene (PE) Pipe Jointing		114	(2)
Copper Pipe Jointing		116	(2)
Mild Steel Pipe Jointing		118	(2)
Semi-Rigid and Flexible Pipe Connections		120	(2)
Gas Service Pipework		122	(4)
Connections to High Rise Buildings		126	(2)
Gas Meter Installations		128	(4)
Commercial Gas Installations		132	(2)
Internal Installation Pipework		134	(2)
Pipework Laid in Floors		136	(2)
Pipework in Walls		138	(2)
Pipework Support and Allowance for Movement		140	(2)
Timber Framed Dwellings		142	(2)
LPG Storage and Supply		144	(2)
LPG Cylinder Installation		146	(2)
Storage and Transportation of LPG Cylinders		148	(2)
LPG Bulk Tank Installation		150	(2)
Gas Supplies from a Bulk Tank Installation		152	(2)
Pipe Sizing LPG Installations		154	(3)
Part 5 Tightness Testing		157	(36)
Tightness Testing and Purging		158	(2)
Testing Equipment		160	(2)
Tightness Testing with Air (Domestic)		162	(2)
Tightness Testing and Purging with Natural Gas (Domestic)		164	(4)
Tightness Testing and Purging with LPG (Domestic)		168	(4)
Strength Testing for Commercial Pipework		172	(4)
Commercial Tightness Testing		176	(6)
Direct Purging Commercial Pipework		182	(6)
Commercial Purging Procedure		188	(2)
Indirect Purging using Nitrogen (N2)		190	(3)
Part 6 Flues		193	(46)
Flue Classification		194	(2)
Flue Material and Specification		196	(2)
Natural Draught Open Flue Systems		198	(2)
Installation of an Open Flue		200	(2)
Minimum Open Flue Heights 1		202	(2)
Minimum Open Flue Heights 2		204	(2)
Open Flue Terminal Design and Location		206	(2)
Condensation within Open Flue Systems		208	(2)
Brick Chimneys		210	(2)
Flexible Stainless Steel Flue Liners		212	(2)
Pre-Cast Flue Blocks		214	(2)
Flue Pipes		216	(2)
Fan Draught Open Flue Systems		218	(2)
Shared Open Flue Systems		220	(2)
Checking and Testing Open Flue Systems		222	(2)
Room Sealed Flue System		224	(2)
Fan Assisted Room Sealed Flue Appliance		226	(2)
Room Sealed and Fan Flue Terminal Locations		228	(2)
Shared Room Sealed Flue Systems		230	(2)
Fan Dilution System		232	(2)
Flue Gas Analysis		234	(2)
Test Equipment for Flue Gas Analysis		236	(3)
Part 7 Ventilation		239	(22)
Need for Ventilation		240	(2)
Ventilation Location		242	(2)
Effective Ventilation		244	(2)
Ventilation Sizing and Tables		246	(4)
Ventilation Calculations 1		250	(4)
Ventilation Calculations 2		254	(4)
Domestic Ventilation Ready Reckoner		258	(3)
Part 8 Gas Installer Responsibility		261	(22)
Commissioning Gas Installations/Appliances		262	(6)
Servicing Gas Installations/Appliances		268	(2)
Installation of Second-Hand Appliances		270	(2)
Gas Safety and Landlord Inspections		272	(2)
Gas Industry Unsafe Situations		274	(2)
Dealing with Unsafe Situations		276	(2)
Gas Escape Procedures		278	(2)
Reporting of Injuries, Diseases and Dangerous Occurrences Regulations (RIDDOR)		280	(3)
Part 9 Domestic Appliances		283	(84)
Gas Fires and Space Heaters		284	(2)
Component Parts of a Gas Fire		286	(2)
Open Flued Radiant Convector Gas Fires		288	(2)
Open Flued Solid Fuel Effect Fires and Heaters		290	(2)
Installation of Open Flued Gas Fires 1		292	(2)
Installation of Open Flued Gas Fires 2		294	(2)
Installation of Open Flued Gas Fires 3		296	(2)
Decorative Fuel Effect Gas Fires DFE		298	(2)
Fan Flued and Room Sealed Heaters		300	(2)
Flueless Space Heaters		302	(2)
Commissioning and Servicing Space Heaters		304	(4)
Domestic Gas Cookers		308	(4)
Installation of Cooking Appliances		312	(2)
Domestic Flued Cooking Range		314	(2)
Commissioning and Servicing Cookers		316	(4)
Instantaneous Gas Water Heaters		320	(2)
Instantaneous Water Heater Operation		322	(4)
Gas Storage Water Heaters		326	(2)
Installation of Water Heaters		328	(2)
Commissioning and Servicing of Water Heaters		330	(4)
Domestic Gas Boilers		334	(2)
Conventional or Regular Gas Boilers		336	(2)
The Combination Boiler		338	(2)
The Condensing Boiler		340	(2)
Installation of Domestic Gas Boilers		342	(2)
Commissioning and Servicing Gas Boilers		344	(4)
Domestic Ducted Warm Air Heaters		348	(2)
Installations of Warm Air Heaters		350	(2)
Commissioning and Servicing Warm Air Heaters		352	(4)
Domestic Tumble Dryers		356	(2)
Installation of Domestic Tumble Dryers		358	(2)
Domestic Gas Refrigerators		360	(2)
Leisure Appliances		362	(2)
Greenhouse Heaters and Gas Pokers		364	(3)
Part 10 Commercial Appliances		367	(42)
Commercial Boilers		368	(2)
Commercial Boiler Gas Control Systems		370	(2)
Commercial Warm Air Heaters		372	(2)
Commercial Direct Fired Air Heaters		374	(2)
Commercial Indirect Fired Air Heaters		376	(2)
Overhead Radiant Heaters		378	(4)
Commercial Laundry Equipment		382	(4)
Boosters and Compressors		386	(4)
Commercial Catering		390	(2)
Catering Establishments		392	(2)
Ventilation/Extraction in Commercial Kitchens		394	(2)
Commercial Cookers and Ovens		396	(2)
Specialist Ovens and Steamers		398	(2)
Boiling Pans, Hot Cupboards and Bain-Maries		400	(2)
Grills, Griddles and Fryers		402	(2)
Drinking Water Boilers		404	(2)
Mobile Catering Units		406	(3)
Part 11 Non-Permanent Dwellings		409	(16)
Residential Park Homes		410	(2)
Leisure Accommodation Vehicles		412	(2)
Caravan Holiday Homes		414	(2)
Touring and Motorised Caravans		416	(2)
Gas Supply on Boats		418	(2)
Pipework Installation on Boats		420	(2)
Appliances and Ventilation for Boats		422	(3)
Part 12 Electrical Work		425	(14)
Electricity		426	(2)
Electrical Safety		428	(2)
Bonding		430	(2)
Safe Isolation		432	(2)
Inspection and Testing		434	(2)
Fault Diagnosis of Basic Electrical Controls		436	(3)
Index		439

Roy Treloar has been in the mechanical service industry since leaving school in 1973. He became a full time lecturer, teaching plumbing in 1985. He is currently Team Manager: Mechanical Services at Colchester Institute where he is responsible for all plumbing, heating and gas training and assessment programmes. He has played an active part in external verification for the City & Guilds in both the plumbing and gas schemes and is author of the highly successful NVQ textbook, Plumbing, also published by Blackwell's.