EN 12752-1:1999

FOREWORD
1 Scope
2 Normative references
3 Definitions
  3.1 Tumble dryers
  3.2 Gases
  3.3 Conditions of operation and measurement
  3.4 Appliance construction
  3.5 Immobilizing an adjuster or a control
  3.6 Appliance performance
  3.7 Marking of the appliance and packaging
4 Classification of appliances
  4.1 Classification according to the nature of the
       gases used (categories)
  4.2 Classification according to the mode of supply
       of the combustion air and evacuation of the
       combustion products
5 Construction and design requirements
  5.1 General
  5.2 Requirements for adjusting, control and safety
       devices
  5.3 Ignition devices
  5.4 Ignition burner or start-gas flame establishment
  5.5 Main flame establishment
  5.6 Burners
  5.7 Thermostats and control of air temperature
  5.8 Clocks and timing devices
  5.9 Gas pressure test points
  5.10 Door interlocks
6 Operational safety
  6.1 General
  6.2 Screw connections
  6.3 Mechanical hazards
  6.4 Manually operate devices of the automatic burner
       control system
  6.5 Soundness
  6.6 Heat inputs
  6.7 Burners
  6.8 Limiting temperature of various parts of the
       appliance
  6.9 Limiting temperature of floor, walls and worktop
  6.10 Limiting temperature of components
  6.11 Motor temperatures
  6.12 Ignition, cross-lighting and flame stability
  6.13 Flame supervision devices
  6.14 Governors
  6.15 Combustion
  6.16 Sooting
  6.17 Cyclic operation test
  6.18 Spillage monitoring device (Type B11BS appliances)
7 Marking
  7.1 Marking of the appliance
  7.2 Marking of the packaging
  7.3 Utilization of symbols on the appliance and
       packaging
  7.4 Instructions
  7.5 Presentation
Annexes
A (informative) National situations
  A.1 - Categories listed in the body of the standard
        marketed in the different countries
  A.2 - Appliance supply pressure corresponding to the
        categories given in A.1
  A.3 - Special categories marketed nationally or locally
        and corresponding test gases
  A.4 - Test gases corresponding to the special categories
        given in A.3
  A.5 - Gas connections in the various countries
  A.6 - Flue connections in the various countries
  A.7 - Equivalence rules
B (normative) Special national conditions
ZA (informative) Clauses of this European Standard
   addressing essential requirements or other provisions
   of EU Directives

This European Standard specifies the requirements and test methods for the construction, safety and marking of gas-fired type B tumble dryers not exceeding a nominal heat input of 20 kW and with drum volume not exceeding 350 l, hereafter re~erred to as 'Appliances". This European Standard applies to types B22 and B23 direct gas-fired appliances and to types B11 and B11BS indirect gas-fired appliances. This Standard does not apply to: a) catalytic combustion appliances; b) appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere; c) appliances of the condensing type wherein the heated air and products of combustion used for the drying process are dehumidified by cooling with water or air; d) appliances intended to be used in vehicles or on board ships or aircraft; e) appliances of types B22D and B23D This standard covers type testing only.