BS 7977-2:2003
Current
The latest, up-to-date edition.
Specification for safety and rational use of energy of domestic gas appliances Combined appliances. Gas fire/back boiler
Hardcopy , PDF
English
13-06-2003
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Committees responsible
Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 Appliance and parts
3.2 Parts of the appliance conveying gas to the burners
3.3 The burner
3.4 Burner control systems
3.5 Construction
3.6 Auxiliary equipment
3.7 Gases
3.8 Appliance performance
3.9 Gas combustion
3.10 lint assessment
4 Classification of appliances
4.1 Classification according to the nature of the gases used
(categories)
4.2 Conversion to different gases
5 Construction
5.1 Materials and method of construction
5.2 Accessibility for maintenance and use
5.3 Connections to the gas and water pipes
5.4 Flue system
5.5 Soundness
5.6 Supply of combustion air and evacuation of the combustion
products
5.7 Assembly
5.8 Electrical equipment
5.9 Operational safety in the event of fluctuation, interruption
and restoration of the auxiliary energy
5.10 Confirmation of operation
5.11 Requirements for adjusting, control and safety devices
5.12 Burners
6 Test conditions
6.1 Test gases
6.2 Conditions of test
7 Requirements and test methods
7.1 Soundness
7.2 Heat input
7.3 Limiting temperatures
7.4 Ignition-cross lighting and flame-stability
7.5 Delayed ignition
7.6 Control devices
7.7 Combustion
7.8 Lint assessment
7.9 Guarding (Fires only)
7.10 Spillage monitoring
7.11 Cyclic use test - fire only
7.12 Products clearance
7.13 Flame supervision device
7.14 Useful efficiency at nominal heat input
7.15 Useful efficiency at park load (back boiler only)
7.16 Hydraulic resistance
7.17 Stability of the fire
7.18 Thermostats and water temperature limiting devices
8 Marking and instructions
8.1 General
8.2 Appliance marking
8.3 Dress guard
8.4 Warning labels
8.5 Packaging
8.6 Name badge
8.7 User instructions
8.8 Installation instructions
8.9 Conversion instructions
Annex A (normative) - Lint - Method of test for resistance to
airborne lint
Annex B (informative) - Composition of the gas circuit
Annex C (informative) - GAD essential requirements guide
Bibliography
Figures
Tables
Provides the requirements and methods of test for the construction, safety, performance, classification and marking of gas-fired appliances consisting of a back boiler and a gas fire.
| Committee |
GSE/36
|
| DevelopmentNote |
Supersedes BS 5258-8(1980) & 95/717426 DC (05/2003) Supersedes BS 6332-3(1984) (07/2003) Reviewed and confirmed by BSI, October 2008. (09/2008)
|
| DocumentType |
Standard
|
| Pages |
82
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
| 07/30150793 DC : 0 | BS 5440-1 - FUELING AND VENTILATION FOR GAS APPLIANCES OF RATED INPUT NOT EXCEEDING 70 KW NET (1ST, 2ND AND 3RD FAMILY GASES) - PART 1: SPECIFICATION FOR INSTALLATION OF GAS APPLIANCES TO CHIMNEYS AND FOR MAINTENANCE OF CHIMNEYS |
| BS 5871-2:2005 | Specification for the installation and maintenance of gas fires, convector heaters, fire/back boilers and decorative fuel effect gas appliances Inset live fuel effect gas fires of heat input not exceeding 15 kW, and fire/back boilers (2nd and 3rd family gases) |
| BS 5440-1:2008 | Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) Specification for installation of gas appliances to chimneys and for maintenance of chimneys |
| BS 6798:2014 | Specification for selection, installation, inspection, commissioning, servicing and maintenance of gas-fired boilers of rated input not exceeding 70 kW net |
| BS 6700(2006) : 2006 | DESIGN, INSTALLATION, TESTING AND MAINTENANCE OF SERVICES SUPPLYING WATER FOR DOMESTIC USE WITHIN BUILDINGS AND THEIR CURTILAGES - SPECIFICATION |
| BS EN 437 : 2003 | TEST GASES - TEST PRESSURES - APPLIANCE CATEGORIES |
| ISO 7005-2:1988 | Metallic flanges — Part 2: Cast iron flanges |
| BS 5258-8:1980 | Safety of domestic gas appliances Combined appliances: gas fire/back boiler |
| ISO 274:1975 | Copper tubes of circular section — Dimensions |
| BS EN 257:2010 | Mechanical thermostats for gas-burning appliances |
| ISO 7005-3:1988 | Metallic flanges Part 3: Copper alloy and composite flanges |
| BS EN 126:2012 | Multifunctional controls for gas burning appliances |
| IEC 60817:1984 | Spring-operated impact-test apparatus and its calibration |
| BS EN 484:1998 | Specification for dedicated liquefied petroleum gas appliances. Independent hotplates, including those incorporating a grill for outdoor use |
| ISO 7-1:1994 | Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation |
| BS EN 60730-2-9:2010 | Automatic electrical controls for household and similar use Particular requirements for temperature sensing controls |
| BS EN 88:1991 | Pressure governors for gas appliances for inlet pressures up to 200 mbar |
| BS EN 161 : 2011 | AUTOMATIC SHUT-OFF VALVES FOR GAS BURNERS AND GAS APPLIANCES |
| BS EN 50165:1997 | Electrical equipment of non-electric appliances for household and similar purposes. Safety requirements |
| BS EN 125 : 2010 | FLAME SUPERVISION DEVICES FOR GAS BURNING APPLIANCES - THERMOELECTRIC FLAME SUPERVISION DEVICES |
| BS EN 483 : 2000 | GAS-FIRED CENTRAL HEATING BOILERS - TYPE C BOILERS OF NOMINAL HEAT INPUT NOT EXCEEDING 70 KW |
| ISO 7005-1:2011 | Pipe flanges — Part 1: Steel flanges for industrial and general service piping systems |
| BS EN 297:1994 | Gas-fired central heating boilers. Type B<sub>11</sub> and B<sub>11BS</sub> boilers fitted with atmospheric burners of nominal heat input not exceeding 70 kW |
| BS EN 298:2012 | Automatic burner control systems for burners and appliances burning gaseous or liquid fuels |
| BS 1179:1967 | Glossary of terms used in the gas industry |
| ISO 228-1:2000 | Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation |
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