BS 7977-1:2002
$189.07
Specification for safety and rational use of energy of domestic gas appliances – Radiant/convectors
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 84 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British Standard |
| 3 | Contents |
| 7 | 1 Scope 2 Normative references |
| 8 | 3 Definitions 3.1 Domestic gas-fired radiant/convector heating appliances 3.1.1 radiant/convector 3.1.2 live fuel effect fire (LFE) 3.1.3 inset live fuel effect fire (ILFE) 3.1.4 decorative fuel effect appliance 3.1.5 working surfaces 3.1.6 simulated fuel elements |
| 9 | 3.2 Gases 3.2.1 reference conditions 3.2.2 calorific value 3.3.3 relative density 3.3.4 net Wobbe index 3.3.5 test pressure 3.3.6 normal pressure |
| 10 | 3.3.7 limit pressures 3.3 Appliance construction 3.3.1 The gas circuit |
| 11 | 3.3.2 The burner 3.3.3 The combustion products circuit |
| 12 | 3.3.4 Auxiliary equipment |
| 13 | 3.4 Immobilizing an adjuster or a control 3.4.1 sealing an adjuster 3.4.2 setting an adjuster 3.4.3 putting an adjuster or a control out of service 3.5 Appliance performance 3.5.1 Gas rates 3.5.2 Gas combustion |
| 14 | 3.5.3 thermal equilibrium 3.5.4 hot condition 4 Classification of appliances 4.1 Classification according to the nature of the gases used (categories) Table 1 – Classification of gases |
| 15 | 4.2 Conversion to different gases 5 Constructional requirements 5.1 Materials and method of construction |
| 18 | 5.2 Adjusters, controls and safety devices |
| 20 | 5.3 Design requirements for wall-mounted appliances and floor-mounted appliances not requiring a … 6 Performance and test methods 6.1 General |
| 21 | Table 2 – Characteristics of the test gases (Gas dry at 15 °C and 1�013.25�mbar) |
| 22 | Table 3 – Calorific values of the test gases of the third family (in megajoules per kilogram) |
| 23 | Table 4 – Test pressures |
| 24 | 6.2 Soundness of the gas circuit |
| 25 | 6.3 Heat input |
| 27 | 6.4 Safety of operation |
| 29 | Table 5 |
| 38 | 6.5 Combustion |
| 40 | Table 6 |
| 41 | 6.6 Spillage monitoring system |
| 42 | Table 7 – Shutdown times |
| 43 | 6.7 Cyclic use |
| 44 | 6.8 Efficiency |
| 45 | 7 Marking and instructions 7.1 Marking on the appliance |
| 46 | 7.2 Marking of the packaging 7.3 Utilization of symbols on the appliance and packaging Table 8 – Gas categories |
| 47 | 7.4 Instructions |
| 48 | 8 Particular requirements for inset live fuel effect gas appliances 8.1 Constructional requirements 8.2 Performance and test methods |
| 55 | 8.3 Marking and instructions |
| 57 | Figure 1 – Illustrations of fuel effect appliances |
| 59 | Figure 2 – Standard test box |
| 60 | Figure 3 – Apparatus for the assessment of the products outlet design |
| 61 | Figure 4 – Test box and flue for appliances that can be installed in a metal flue box and/or a pre-cast flue |
| 62 | Figure 5 – Collecting hood |
| 64 | Figure 6 – Apparatus for measuring floor and wall temperatures |
| 65 | Figure 7 – Hearth area for measurement of floor temperatures |
| 66 | Figure 8 – Probe for dress guard test |
| 67 | Figure 9 – Sampling probe for the products of combustion and their temperature measurements |
| 68 | Figure 10 – Sealed room |
| 69 | Figure 11 – Combustion products safety device — Test apparatus |
| 70 | Figure 12 – Efficiency test rig |
| 71 | Figure 13 – Mean specific heat of dry products of combustion |
| 72 | Figure 14 – Basic test box for fuel effect gas appliances |
| 73 | Figure 15 – Removable inserts for fuel effect gas appliances |
| 75 | Figure 16 – Test box assembly for fuel effect gas appliances |
| 76 | Figure 17 – Flue for fuel effect appliances |
| 77 | Figure 18 – Sampling probe |
| 78 | Figure 19 – Collecting hood positioning |
| 79 | Annex A (normative) Equivalence rules |
| 80 | Annex B (informative) Calculation of conversions of Table B.1 – Conversion of the emission value of Table B.2 – Conversion of the emission value of Table B.3 – Conversion of the emission value of NOx for third family gases |
| 81 | Annex C (informative) A guide to the clauses of this British Standard addressing the essential requiremen… Table C.1 Clauses of this British Standard addressing the essential requirements of the GAD |
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