Foreword
Cooperating organizations
Specification
1 Scope
2 References
3 Definitions
4 Classification of appliances
4.1 By category
4.2 By flue type
5 General requirements
6 General conditions of test
6.1 Test room
6.2 Preparation of appliance for testing
6.3 Test procedure
7 Design and construction
7.1 All appliances
7.2 Appliances designed for permanent outdoor
installation
8 Soundness
8.1 General
8.2 Complete assembly
9 Heat input
9.1 Measurement
9.2 Tolerance
9.3 Adjustment
10 Combustion
10.1 Combustion requirements
10.2 Methods of analysis
11 Ignition
11.1 Pilot burners and ignition devices
11.2 Ignition performance: burner systems with
permanent pilots
11.3 Ignition performance: burner systems without
permanent pilots
12 Flame stability
12.1 Still air conditions
12.2 Abnormal draught conditions (natural draught
burners)
12.3 Leakage characteristics
13 Flue system
13.1 Effectiveness of flue system
13.2 Flue connections
13.3 Flue breaks
13.4 Induced draught fans
13.5 Air heater designed for outdoor installation
13.6 Heater with integral fan in the secondary flue
(natural draught burner)
14 External temperatures
14.1 Surface temperatures
14.2 Component temperatures
15 Heat exchanger: working life
15.1 Requirements
15.2 Method
16 Manual gas valves
17 Automatic controls
17.1 General
17.2 Governors
17.3 Gas strainers
17.4 Safety shut-off valves
17.5 Air flow through the combustion circuit and flow
of products of combustion
17.6 Flame supervision system
17.7 Pilot or start-gas flame establishment
17.8 Main flame establishment
17.9 Air/gas ratio control for appliances with forced
or mechanically induced draught burners
17.10 Thermostats and control of air temperature
17.11 Thermally sensitive flame supervision device
17.12 Multi-functional controls
18 Motors and fans
18.1 General
18.2 Fan motor temperature
18.3 Lubrication
18.4 Marking
19 Electricity supply
20 Manufacturer's instructions
20.1 General
20.2 Installation instructions
20.3 Servicing instructions
20.4 User's instructions
21 Facilities for commissioning and testing
22 Identification and marking
22.1 General
22.2 Data plate
22.3 Name badge
22.4 Appliance parts
22.5 Electrical data
22.6 Warning notices
22.7 Lighting instructions
23 Air handling
23.1 Air flow rate
23.2 Air flow adjustment
24 Combustion chamber pressure reliefs
25 Thermal efficiency
25.1 Efficiency
25.2 Heat input
25.3 Surface heat dissipation
26 Air delivery temperature
26.1 Requirement
26.2 Method
27 Weather resistance
27.1 Requirements
27.2 Rain test
Tables
1 Surface temperature rise
2 Valves required for natural draught systems
3 Valves required for forced and mechanically
induced draught systems
3a Purge gas test
4 Flame supervision device drop-out times
5 Fan motor windings: permissible temperature rises
6 Enthalpy data for combustion products
7 Combustion data for test gas NGA
Figures
1 Paint scratch test apparatus
2 Test duct for air flow measurement
3 Anti-swirl device
4 Air flow regulation device
5 Connecting head
6 Arrangement of spray heads and associated piping
for rain test
7 Details of spray head assembly and construction