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BS 5990:1990

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Specification for direct gas-fired forced convection air heaters with rated heat inputs up to 2 MW for industrial and commercial space heating: safety and performance requirements (excluding electrical requirement) (2nd family gases)
Available format(s)

Hardcopy , PDF

Withdrawn date

27-07-2006

Language(s)

English

Published date

30-03-1990

Foreword
Committees responsible
Specification
1 Scope
2 Definitions
3 Classification of appliances
3.1 By category
3.2 By flue type
4 General requirements
5 General conditions of test
5.1 Test room
5.2 Preparation of appliance for testing
5.3 Test procedure
6 Design and construction
6.1 All appliances
6.2 Appliances designed for permanent outdoor
       installation
7 Soundness
7.1 General
7.2 Complete assembly
8 Heat input
8.1 Measurement
8.2 Tolerance
8.3 Adjustment
9 Combustion
9.1 Combustion requirements
9.2 Methods of analysis
9.3 Conditions of test
10 Ignition
10.1 Pilot burners and ignition devices
10.2 Ignition performance; burner systems with
       permanent pilots
10.3 Ignition performance; burner system with
       interrupted or intermittent pilots
10.4 Ignition performance; burner systems employing
       direct main flame spark ignition
11 Flame stability
12 External temperatures
12.1 Surface temperatures
12.2 Component temperatures
13 Manual gas valves
14 Automatic controls
14.1 General
14.2 Governors
14.3 Gas strainers
14.4 Safety shut-off valves
14.5 Combustion air, pre-purge and post-purge
14.6 Flame supervision system
14.7 Start-gas flame establishment
14.8 Main flame establishment
14.9 Air-gas ratio control
14.10 Thermostats and control of air temperature
15 Motors and fans
15.1 General
15.2 Fan motor temperature
15.3 Lubrication
15.4 Marking
16 Electricity supply
17 Manufacturer's instructions
17.1 General
17.2 Installation instructions
17.3 Servicing instructions
17.4 User's instructions
18 Facilities for commissioning and testing
19 Identification and marking
19.1 General
19.2 Data plate
19.3 Name badge
19.4 Appliance parts
19.5 Electrical data
19.6 Warning notices
19.7 Lighting instructions
20 Air handling
20.1 Air flow rate
20.2 Air flow adjustment
20.3 Profile plate (where fitted)
20.4 Recirculation air
21 Surface heat dissipation
22 Air delivery volume
23 Weather resistance
Tables
1 Surface temperature rise
2 Application of safety shut-off valves
3 Flame supervision device drop-out times
4 Fan motor windings: permissible temperature rises
Figures
1 Paint scratch test apparatus
2 Test duct for air flow measurement
3 Anti-swirl device
4 Air flow regulating device
5 Connecting bend
6 Arrangement of spray heads and associated piping
       for rain test
7 Details of spray head assembly and construction

Gives detailed requirements for direct gas fired forced convection air heaters having heat inputs up to 2 MW, meant for commercial and industrial applications. Does not cover appliances that are meant for installation in domestic dwellings. Gives safety and performance requirements and methods of test. Coverage includes definitions, heat input, combustion, ignition and manual gas valves. Also includes tables and diagrams.

Committee
GSE/20
DevelopmentNote
Supersedes 83/73385 DC, 86/70629 DC, 89/70195 DC and BS 5990(1981) (09/2005)
DocumentType
Standard
Pages
32
PublisherName
British Standards Institution
Status
Withdrawn
SupersededBy

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