This Standard provides specific requirements and test methods for laundry dryers with energy input not exceeding 500 MJ/h and intended for fixed installation.
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope and application
1.1.1 Scope
1.1.2 Application
1.2 Normative references
1.3 Terms and definitions
1.4 Test methods
2 Design and construction
2.1 Scope
2.2 General design requirements
2.2.101 Door catch design
2.2.101.1 Interlock
2.2.101.2 Separate controls for starting
2.2.102 Protection of components from water
2.2.103 Flash tubes
2.2.104 Damage to clothes, sharp edges
2.2.105 Means of exhaust discharge
2.2.106 Additional requirements for static laundry dryers
2.2.106.1 Prevention of damage to clothes
2.2.106.2 Openings in protective grid
2.2.106.3 Hanging rods
2.2.107 Additional requirements for rotary laundry dryers
2.2.107.1 Automatic ignition
2.2.107.2 Lint removal
2.2.107.3 Provision of lint trap
2.2.107.4 Means to clean lint trap
2.2.107.5 Door fit when closed
2.2.107.6 Adjustment of fan belt tension
2.3 Materials
2.4 Design for assembly and installation
2.5 Design for maintenance
2.6 Design for operation
2.6.1 Primary guard openings
2.7 Controls and safety devices
2.7.101 Cool down cycle
2.7.102 Provision of thermostat
2.7.103 Provision of over temperature cut out
2.8 Gas train
2.9 Combustion air and flue system
2.10 Fan assisted combustion systems
2.11 Burners and ignition systems
2.11.10 Tray type burners-turn down limits
2.12 Components
2.13 Cylinder and cylinder compartments
2.14 Markings
2.14.2 Permanent markings on appliances
2.14.12 Label on guard
2.15 Instructions
2.15.2 Installation
2.15.2.1 Instructions supplied with the appliance
2.15.3 Operation
2.15.3.1 General
2.15.4 Maintenance
3 Preliminary tests — Line gases
3.1 General requirements
3.2 Preparation for testing
3.3 Gas leakage
3.4 Gas consumption
3.5 Gas pressure regulators
3.6 Ignition and safety shut off systems
3.7 Ignition of draped fabric
4 Tests under limiting conditions
4.1 General
4.2 CO/CO2 ratio limits for any independent surface combustion burner — underload
4.3 CO/CO2 ratio limits for any independent burner — Overload
4.4 CO/CO2 ratio limits for permanent pilots — Overload
4.5 Flame characteristics at maximum and minimum limiting conditions
4.6 Burner ignition at maximum and minimum limiting conditions
4.7 Delayed ignition at maximum and minimum limiting conditions
4.8 Reignition at turndown under draught conditions
4.9 Pilot ignition and stability at maximum and minimum limiting conditions
4.10 Burner stability when changing settings
4.11 Unburnt gas release from burner system
4.12 Blocked flueway terminal
4.13 Case pressure test
4.14 Effect of opening and closing doors at turndown condition
4.15 Sooting — Luminous effect appliances
4.16 Burner interference at ignition or during combustion
5 Performance specifications
5.1 Combustion air supply
5.2 Flue operation
5.2.101 Performance with backpressure applied to flue connection
