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BS EN 203-1:2021 – TC:2022 Edition

BS EN 203-1:2021 – TC:2022 Edition

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Tracked Changes. Gas heated catering equipment – General safety requirements

Published By Publication Date Number of Pages
BSI 2022 214
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This document specifies the requirements and test methods for the construction and operating characteristics relating to safety and rational use of energy for gas heated commercial catering and bakery appliances intended to be used indoor. This document applies to all professional cooking and bakery appliances using gas for preparing food and drink. Only appliances of types A1, A2, A3, B1 and B2, as defined in Clause 4, are considered in this document. Only the net calorific value (Hi) and net Wobbe index (Wi) are used. The requirements concerning specific types of appliances are given in the relevant Part 2. Annex C (informative) lists the main types of equipment covered by the scope of this document. Appliances covered by this document are not intended to use gases containing carbon monoxide or other toxic components. NOTE For appliances intended to be used in vehicles, in trailers or on-board ships, additional requirements can be necessary.

PDF Catalog

PDF Pages PDF Title
1 30454028
127 A-30384384
128 undefined
135 1 Scope
2 Normative references
137 3 Terms and definitions
3.1 Terminology referring to gases and pressures
138 3.2 Terminology referring to appliance design
3.2.1 Terminology referring to the gas circuit
139 3.2.2 Terminology referring to the burner
140 3.2.3 Terminology referring to the combustion circuit
141 3.2.4 Terminology referring to the auxiliary equipment
143 3.3 Terminology referring to appliance operation
3.3.1 Terminology referring to gas rates
3.3.2 Terminology referring to gas combustion
145 4 Classification
146 5 Constructional requirements
5.1 General
5.1.1 Conversion to different gases
5.1.1.1 General
5.1.1.2 Category I
147 5.1.1.3 Category II
5.1.1.4 Category III
148 5.1.2 Materials and methods of construction
5.1.3 Use, cleaning and maintenance
5.1.4 Gas connections
149 5.1.5 Soundness
5.1.5.1 Soundness of the gas circuit
5.1.5.2 Soundness of the combustion products circuit
5.1.6 Supply of combustion air and evacuation of combustion products
5.1.6.1 General
150 5.1.6.2 Appliances equipped with a fan
5.1.6.3 Appliances fitted with a gas/air ratio control device
5.1.6.4 Appliances not intended to be connected to an evacuation duct of the combustion products (Type A)
5.1.6.5 Appliances intended to be connected to an evacuation duct of the combustion products (Type B)
151 5.1.7 Flame visibility
5.1.8 Electrical safety
5.1.9 Construction requirements for gas cylinder compartment
152 5.1.10 Cleanability of material in contact with food
5.2 Particular requirements for components in the gas circuit
5.2.1 General
5.2.2 Gas rate control and shut-off device
5.2.2.1 General
5.2.2.2 Shut-off device
153 5.2.2.3 Control knobs
154 5.2.2.4 Marking and indicators
5.2.3 Auxiliary equipment
5.2.3.1 General
5.2.3.2 Ignition device
155 5.2.3.3 Flame supervision device
5.2.3.4 Gas pressure regulator
5.2.3.5 Regulating and overheat limit devices
156 5.2.3.6 Pressure test points
5.2.4 Burners
5.2.5 Gas rate adjusters
157 5.3 Particular requirements
5.3.1 Food spillage
5.3.2 Stability and mechanical safety
5.3.3 Safety from fire risk
5.3.4 Appliances connected to water mains
5.3.5 Pressurized parts
158 5.3.6 Appliances with heat-bearing fluid
6 Performance requirements
6.1 Soundness
6.1.1 Soundness of the gas circuit
6.1.2 Soundness of combustion product circuit of type B appliances
6.1.2.1 General
6.1.2.2 Type B1 appliances not including type B14
6.1.2.3 Type B14 and B2 appliances
159 6.2 Obtaining the gas rate
6.2.1 Nominal heat input (Qn)
6.2.2 Full gas rate
6.2.3 Reduced gas rate
6.2.4 Ignition burner heat input
160 6.3 Safety of operation
6.3.1 Burners
6.3.1.1 Resistance to overheating
6.3.1.2 Escape of unburned gas
6.3.2 Temperature limits
6.3.2.1 Protection against risk of fire
161 6.3.2.2 Protection against risk of burns
6.3.2.3 Regulating, control and safety devices
162 6.3.3 Ignition – cross-lighting – flame stability
6.3.3.1 Influence of supply conditions
6.3.3.2 Influence of winds and room draughts
6.3.4 Combustion products discharge safety devices for type B11BS appliances
6.3.5 Pre-purge
6.3.5.1 General
163 6.3.5.2 Functioning of the permanent ignition burner when the fan stops during standby time
6.4 Influence of burners on each other
6.5 Auxiliary equipment
6.5.1 Flame supervision device
6.5.1.1 Thermoelectric flame supervision device
6.5.1.2 Automatic burner control system
164 6.5.2 Ignition device
6.6 Air proving device
6.6.1 General
6.6.2 Supervision of the combustion air or combustion products rate
165 6.6.3 Supervision of the combustion air pressure or combustion products pressure
6.6.4 Gas/air ratio controls
6.7 Combustion
6.7.1 All appliances (in calm air)
6.7.2 Special conditions
6.7.2.1 Type B14 appliances
6.7.2.2 Type B2 appliances
166 6.8 Auxiliary energy
6.8.1 Electrical energy fluctuation
6.8.1.1 Normal fluctuation
6.8.1.2 Abnormal fluctuation
6.8.2 Electrical energy shut off
6.8.3 Other types of auxiliary energy
6.9 Rational use of energy
6.10 Operating requirements – Temperature of the LPG cylinder and its compartment
6.10.1 Temperature of the walls of the compartment
6.10.2 Temperature of the LPG cylinder
167 7 Test conditions
7.1 General
7.1.1 Characteristics of the test gases
7.1.2 Requirements for making up test gases
7.1.3 Test room
7.1.4 Preparation of the appliance
168 7.1.5 Practical method of test
7.1.5.1 Verification of constructional requirements
7.1.5.2 Conditions of supply and adjustment of the appliances
7.1.6 Test pressures
169 7.1.7 Carrying out the tests
7.1.7.1 Tests requiring all the gases to be used
7.1.7.2 Other tests
7.1.8 Accuracy of measuring instruments
170 7.2 Soundness
7.2.1 Soundness of the gas circuit
7.2.2 Soundness of the combustion circuit and correct evacuation of the combustion products for type B appliances
7.2.2.1 Type B1 appliances not including type B14
171 7.2.2.2 Type B14 and B2 appliances
7.3 Obtaining gas rates
7.3.1 General
7.3.2 Nominal heat input
7.3.2.1 General
173 7.3.2.2 Verification of the heat input of unregulated appliances without gas rate adjusters or where these devices are put out of service
7.3.2.3 Verification of the performance of gas rate adjusters for unregulated appliances
7.3.2.4 Regulated appliances
7.3.3 Full gas rate
7.3.4 Reduced gas rate
174 7.3.5 Ignition device
7.4 Operational safety
7.4.1 Burners
7.4.1.1 Resistance to overheating
7.4.1.2 Escape of unburned gas
7.4.2 Limit temperatures
7.4.2.1 General
175 7.4.2.2 Protection against risk of fire
7.4.2.3 Protection against risk of burns
7.4.2.4 Regulating, control and safety devices
7.4.2.5 Abnormal operation
7.4.3 Ignition – cross – lighting – flame stability
7.4.3.1 General
176 7.4.3.2 Influence of the supply conditions
7.4.3.3 Influence of wind and draughts
177 7.4.3.4 Specific tests for type B appliances
178 7.4.3.5 Effectiveness of the pre-purge
179 7.4.3.6 Functioning of a permanent ignition burner when the fan is stopped during standby time
7.4.3.7 Influence of burners on each other
180 7.5 Auxiliary equipment
7.5.1 Flame supervision device
7.5.1.1 Thermoelectric flame supervision device
7.5.1.2 Automatic burner control system
181 7.6 Combustion
7.6.1 General
182 7.6.2 Tests carried out under normal conditions
7.6.2.1 General test conditions
183 7.6.2.2 Supplementary test
184 7.6.3 Specific test for type B appliances
7.6.3.1 General
7.6.3.2 Type B1 appliances not including type B14
7.6.3.3 Type B14 appliances
7.6.3.4 Type B2 appliances
7.6.4 Test with sooting limit gas
7.7 Air-proving device
7.7.1 General
185 7.7.2 Supervision of the combustion air or the combustion products rate
7.7.2.1 For appliances other than type B1
7.7.2.2 For B14 appliances
7.7.3 Supervision of the combustion air or the combustion products pressure
186 7.8 Special tests
7.8.1 Stability and mechanical safety
7.8.2 Pressurized parts
7.8.3 Appliances with heat-bearing fluid
7.9 Test method – Overheating of the LPG cylinder and its compartment
187 7.10 Rational use of energy
8 Marking and instructions
8.1 General requirements for marking and instructions
8.2 Marking on the appliance
8.2.1 Data plates, labels and packaging
188 8.2.2 Additional marking on the appliance and packaging
8.3 Instructions for installation and adjustment
8.3.1 Requirements for installation and adjustment
190 8.3.2 Additional requirements for installation and adjustment
8.4 Instructions for use and maintenance
8.4.1 Requirements for instructions for use and maintenance
191 8.4.2 Additional requirements for instructions for use and maintenance
198 Annex A (informative)National situations
A.1 Connection requirements in force in various countries (see 5.1.4)
199 A.2 Requirements for flue connection in force in various countries (see 5.1.6.5)
200 A.3 Categories, test gases and test pressures
201 Annex B (normative)Use of symbols on appliances and packaging
B.1 General
B.2 Electric power supply
B.3 Type of gas
B.4 Gas supply pressure
202 B.5 Country of destination
B.6 Category
B.7 Other optional information
B.8 Nominal heat input of burner
B.9 Nominal heat input of set of burners on appliance
203 Annex C (informative)Trilingual list of appliances in the scope of EN 2031 and corresponding Part 2
205 Annex D (informative)Configuration of the gas circuit
D.1 Minimum requirements for appliances with or without fan, but with permanent or alternating ignition burner and appliances with fan and pre-purge
206 D.2 Minimum requirements for appliances with fan, without permanent or alternating ignition burner and without pre-purge
207 Annex E (normative)Material in contact with food
210 Annex ZA (informative)Relationship between this European Standard and the essential requirements of Regulation (EU) 2016/426 aimed to be covered

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BS EN 203-1:2021 - TC
$280.87