Only the original UN/ECE texts have legal effect under international public law. The status and date of entry into force of this Regulation should be checked in the latest version of the UN/ECE status document TRANS/WP.29/343, available at: http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29fdocstts.html

Regulation No 122 of the Economic Commission for Europe of the United Nations (UN/ECE) — Uniform technical prescriptions concerning the approval of vehicles of categories M, N and O with regard to their heating systems [2020/110]

Supplement 5 to the original version of the Regulation — Date of entry into force: 15 October 2019

Incorporating all valid text up to:

CONTENTS

REGULATION

1. Scope

2. Definitions: General

3. Application for approval

4. Approval

5. Part I: Approval of a vehicle type with regard to its heating system

6. Part II: Approval of a heating system with regard to its operational safety

7. Modification and extension of approval of a vehicle or component type

8. Conformity of production

9. Penalties for non-conformity of production

10. Production definitely discontinued

11. Names and addresses of technical services conducting approval tests and of Type Approval Authorities

ANNEXES

Annex 1 - Information documents and communication forms

Annex 2 - Arrangements of approval marks

Annex 3 - Requirements for waste heating systems — Air

Annex 4 - Test procedure for air quality

Annex 5 - Test procedure for temperature

Annex 6 - Test procedure for exhaust emission of combustion heaters

Annex 7 - Additional requirements for combustion heaters

Annex 8 - Safety requirements for LPG combustion heaters and LPG heating systems

Annex 9 - Additional provisions applicable to certain vehicles as specified in the ADR

1. SCOPE

1.1. This regulation applies to all vehicles in categories M, N and O ( 1 ) in which a heating system is fitted.

Type approvals are granted according to:

1.2. Part I — Approval of a vehicle type with regard to its heating system.

1.3. Part II — Approval of a heating system with regard to its operational safety.

2. DEFINITIONS: GENERAL

For the purposes of this Regulation:

2.1. ‘Vehicle’ means a vehicle of category M, N or O (1) in which a heating system is fitted.

2.2. ‘Manufacturer’ means the person or body who is responsible to the approval authority for all aspects of the type approval process and for ensuring conformity of production. It is not essential that the person or body is directly involved in all stages of the construction of the vehicle or component which is the subject of the approval process.

2.3. ‘Interior’ means the enclosed parts of a vehicle used for the accommodation of the vehicle occupants and/or the load.

2.4. ‘Heating system for the passenger compartment’ means any type of device designed to increase the temperature of the passenger compartment.

2.5. ‘Heating system for the load area’ means any type of device designed to increase the temperature of the load area.

2.6. ‘Load area’ means the interior part of the vehicle used to accommodate the non-passenger load.

2.7. ‘Passenger compartment’ means the interior part of the vehicle used to accommodate the driver and any passengers.

2.8. ‘Gaseous fuel’ includes fuels that are gaseous at normal temperature and pressure (288,2 K and 101,33 kPa), such as liquefied petroleum gas (LPG) and compressed natural gas (CNG).

2.9. ‘Overheating’ means the condition that exists when the air inlet for the heating air to the combustion heater is completely blocked.

3. APPLICATION FOR APPROVAL

3.1. Application for approval of a type of vehicle with regard to its heating system

3.1.1. The application for approval of a vehicle type with regard to its heating system shall be submitted by the manufacturer of the vehicle or by his duly accredited representative.

3.1.2. It shall be accompanied by the undermentioned documents in triplicate and by the following particulars:

3.1.2.1. a detailed description of the vehicle type with respect to its structure, dimensions, configuration and constituent materials;

3.1.2.2. drawings of the heating system and its general arrangement

3.1.3. A model for the information document is given in Annex 1, Part 1, Appendix 1.

3.1.4. A vehicle representative of the type to be approved must be submitted to the technical service responsible for conducting the type-approval tests.

3.1.5. If the vehicle to be approved is equipped with a heater with an ECE type approval, the type approval number and the maker’s type designations of this type of heater shall be enclosed in the application for the vehicle type approval.

3.1.6. If the vehicle to be approved is equipped with a heater without ECE type approval, one sample representative of the type to be approved shall be submitted to the technical service.

3.2. Application for approval of a type of heater

3.2.1. The application for approval of a type of heater as a component shall be submitted by the manufacturer of the heating system.

3.2.2. It shall be accompanied by the undermentioned documents in triplicate and by the following particulars:

3.2.2.1. a detailed description of the heating system type with respect to its structure, dimensions, configuration and constituent materials;

3.2.2.2. drawings of the heating system and its general arrangement

3.2.3. A model for the information document is given in Annex 1 Part 1, Appendix 2.

3.2.4. One sample heater representative of the type to be approved shall be submitted to the technical service.

3.2.5. The sample shall be clearly and indelibly marked with the applicant’s trade name or mark and the type designation.

4. APPROVAL

4.1. If the type submitted for approval to this Regulation meets the requirements of the relevant part(s) of this Regulation, approval of that type shall be granted.

4.2. An approval number shall be assigned to each type approved. Its first two digits (at present 00, corresponding to the Regulation in its original form) shall indicate the series of amendments incorporating the most recent major technical amendments made to the Regulation at the time of issue of the approval. The same Contracting Party shall not assign the same number to another type of vehicle or heating system as defined in this Regulation.

4.3. Notice of approval or of extension of approval of a type pursuant to this Regulation shall be communicated to the Contracting Parties to the Agreement applying this Regulation, by means of one of the forms conforming to the models in Annex 1, Part 2, as appropriate, to this Regulation.

4.4. There shall be affixed, conspicuously and in a readily accessible location specified on the approval form, to every vehicle conforming to a type approved under this Regulation and to every component supplied separately conforming to a type approved under this Regulation, a circle surrounding the letter ‘E’ followed by the distinguishing number of the country which has granted type approval ( 2 )

4.5. In the case of a component type-approval, the number of this Regulation, followed by the letter ‘R’, a dash and the approval number according to paragraph 4.2.

4.6. If a type conforms to a type approved under one or more other Regulations annexed to the Agreement, in the country which has granted approval under this Regulation, the symbol prescribed in paragraph 4.2 need not be repeated; in such a case, the Regulation(s) under which approval has been granted in the country which has granted approval under this Regulation shall be placed in vertical columns to the right of the symbol prescribed in paragraph 4.2.

4.7. The approval mark shall be clearly legible and be indelible.

4.8. In the case of a vehicle, the approval mark shall be placed close to or on the vehicle data plate affixed by the manufacturer.

4.9. Annex 2 to this Regulation gives examples of arrangements of approval marks.

5. PART I: APPROVAL OF A VEHICLE TYPE WITH REGARD TO ITS HEATING SYSTEM

5.1. Definition

For the purpose of Part I of this Regulation,

5.1.1. ‘Vehicle type with regard to heating system’ means vehicles which do not differ in essential respects such as the functioning principle(s) of the heating system.

5.2. Specifications

5.2.1. The passenger compartment of every vehicle shall be fitted with a heating system. If a heating system for the load area is provided in a vehicle, it shall comply with this Regulation.

5.2.2. The heating system of the vehicle to be type approved shall meet the technical requirements of Part II of this Regulation.

5.3. Vehicle Installation Requirements for Combustion Heaters, Electric Heaters and Heat Pump Heating Systems

5.3.1. Scope

5.3.1.1. Subject to paragraph 5.3.1.2, heaters shall be installed according to the requirements of paragraph 5.3.

5.3.1.2. Vehicles of category O having liquid fuel heaters are deemed to comply with the requirements of paragraph 5.3.

5.3.2. Positioning of heater

5.3.2.1. Body sections and any other components in the vicinity of the heater must be protected from excessive heat and the possibility of fuel or oil contamination.

5.3.2.2. The heater shall not constitute a risk of fire, even in the case of overheating. This requirement shall be deemed to be met if the installation ensures an adequate distance to all parts and suitable ventilation, by the use of fire resistant materials or by the use of heat shields.

5.3.2.3. In the case of M2 and M3 vehicles, the combustion heater must not be positioned in the passenger compartment. However, an installation in an effectively sealed envelope which also complies with the conditions in paragraph 5.3.2.2 may be used.

5.3.2.4. The label referred to in Annex 7, paragraph 4, or a duplicate, must be positioned so that it can be easily read when the combustion heater is installed in the vehicle.

5.3.2.5. Every reasonable precaution should be taken in positioning the heater to minimize the risk of injury and damage to personal property.

5.3.3. Fuel supply of Combustion Heaters

5.3.3.1. The fuel filler must not be situated in the passenger compartment and must be provided with an effective cap to prevent fuel spillage.

5.3.3.2. In the case of liquid fuel heaters, where a supply separate from that of the vehicle is provided, the type of fuel and its filler point must be clearly labelled.

5.3.3.3. A notice, indicating that the heater must be shut down before refuelling, must be affixed to the fuelling point. In addition a suitable instruction must be included in the manufacturer’s operating manual.

5.3.4. Exhaust system of Combustion Heaters

5.3.4.1. The exhaust outlet must be located so as to prevent emissions from entering the vehicle through ventilators, heated air inlets or opening windows.

5.3.5. Combustion air inlet of Combustion Heaters

5.3.5.1. The air for the combustion chamber of the heater must not be drawn from the passenger compartment of the vehicle.

5.3.5.2. The air inlet must be so positioned or guarded that blocking by rubbish or luggage is unlikely.

5.3.6. Heating air inlet

5.3.6.1. The heating air supply may be fresh or re-circulated air and must be drawn from a clean area not likely to be contaminated by exhaust fumes emitted either by the propulsion engine, the combustion heater or any other vehicle source.

5.3.6.2. The inlet duct must be protected by mesh or other suitable means.

5.3.7. Heating air outlet

5.3.7.1. Any ducting used to route the hot air through the vehicle must be so positioned or protected that no injury or damage could be caused if it were to be touched.

5.3.7.2. The air outlet must be so positioned or guarded that blocking by rubbish or luggage is unlikely.

5.3.8. Automatic control of the combustion heating system

5.3.8.1. The heating system must be switched off automatically and the supply of fuel must be stopped within five seconds when the vehicle’s engine stops running. If a manual device is already activated, the heating system can stay in operation.

6. PART II: APPROVAL OF A HEATING SYSTEM WITH REGARD TO ITS OPERATIONAL SAFETY

6.1. Definitions

For the purpose of Part II of this Regulation,

6.1.1. ‘Heating system’ means any type of device which is designed to increase the temperature of the interior of a vehicle, including any load area.

6.1.2. ‘Combustion heater’ means a device directly using liquid or gaseous fuel and not using the waste heat from the engine used for propulsion of the vehicle.

6.1.3. ‘Type of heating systems’ means devices which do not differ in essential respects such as:

— energy supply (e.g. liquid fuel or electricity),

— transfer medium (e.g. air or water),

— vehicle location (e.g. passenger compartment or load area).

6.1.4. ‘Waste-heat heating system’ means any type of device using the waste heat from the engine used for propulsion of the vehicle to increase the temperature of the interior of the vehicle, this may include water, oil or air as the transfer medium.

6.1.5. ‘Electric heater’ means a device using electric energy from an onboard or external source to increase the temperature of the interior of the vehicle. Electrical devices which are installed in addition to the main heating system and whose main function is not to heat the interior of the vehicle are not considered as electric heaters according to this Regulation. For example, electric devices installed in components for the sole purpose of heating that component are not considered as electric heaters according to this Regulation.

6.1.6. ‘Heat pump heating system’ means any type of thermodynamic heating device deemed to make use of renewable energy that draws calories from one environment (air or water) in order to transfer them to another with a view to increasing the temperature of the interior of the vehicle. Heat pump heating systems which are installed in addition to the main heating system and whose main function is not to heat the interior of the vehicle are not considered as heat pump heating systems according to this Regulation.

6.2. Specifications: General

The requirements for heating systems are that:

— the heated air entering the passenger compartment shall be no more polluted than the air at the point of inlet to the vehicle,

— the driver and passengers, during road use, will not be able to come into contact with parts of the vehicle or heated air liable to cause burns,

— the exhaust emissions from combustion heaters are within acceptable limits.

The test procedures for verification of each of these requirements are set out in Annexes 4, 5 and 6.

6.2.1. The following table indicates which annexes apply to each type of heating system within each vehicle category:

Heating system Vehicle category Annex 4 Air quality Annex 5 Temperature Annex 6 Exhaust Annex 8 LPG safety Engine waste heat — water M N O Engine waste heat — air See Note 1 M Yes Yes N Yes Yes O Engine waste heat — oil M Yes Yes N Yes Yes O Gaseous fuel heater See Note 2 M Yes Yes Yes Yes N Yes Yes Yes Yes O Yes Yes Yes Yes Liquid fuel heater See Note 2 M Yes Yes Yes N Yes Yes Yes O Yes Yes Yes Electric heater See Note 2 M Yes N Yes O Yes Heat pump M Yes Yes N Yes Yes O Yes Yes Note 1: Heating systems which comply with the requirements of Annex 3 are exempt from these test requirements. Note 2: Heaters located outside the passenger compartment, using water as a transfer medium, are deemed to comply with Annexes 4 and 5.

6.3. Specifications: Combustion heaters

Additional requirements for combustion heaters are laid down in Annex 7.

7. MODIFICATION AND EXTENSION OF APPROVAL OF A VEHICLE OR COMPONENT TYPE

7.1. Every modification of the type shall be notified to the Type Approval Authority which approved the type. That Authority may then either:

7.1.1. consider that the modifications made are unlikely to have an appreciable adverse effect and that, in any case, the vehicle or component still complies with the requirements; or

7.1.2. require a further test report from the technical service responsible for conducting the tests.

7.2. Confirmation or refusal of approval, specifying the modifications, shall be communicated by the procedure specified in paragraph 4.3 to the Contracting Parties to the Agreement which apply this Regulation.

7.3. The competent authority issuing the extension of approval shall assign a series number for such an extension and inform thereof the other Contracting Parties to the 1958 Agreement applying this Regulation by means of a communication form conforming to the model in Annex 1, Part 2, Appendix 1 or 2 as appropriate to this Regulation.

8. CONFORMITY OF PRODUCTION

The conformity of production procedures shall comply with those set out in the Agreement, Appendix 2 (E/ECE/324-E/ECE/TRANS/505/Rev.2), with the following requirements:

8.1. Vehicles and components approved to this regulation shall be so manufactured as to conform to the type approved by meeting the requirements set forth in paragraphs 5 and 6 above.

8.2. The competent authority which has granted type-approval may at any time verify the conformity control methods applicable to each production facility. The normal frequency of these verifications shall be once per two years.

9. PENALTIES FOR NON-CONFORMITY OF PRODUCTION

9.1. The approval granted in respect of a vehicle type pursuant to this Regulation may be withdrawn if the requirements laid down in paragraphs 5 and 6 above are not complied with.

9.2. If a Contracting Party to the Agreement applying this Regulation withdraws an approval it has previously granted, it shall forthwith notify the other Contracting Parties applying this Regulation, by means of a communication form conforming to the model in Annex 1, Part 2, Appendix 1 or 2 to this Regulation.

10. PRODUCTION DEFINITELY DISCONTINUED

If the holder of the approval completely ceases to manufacture a type of vehicle or component under this Regulation, he shall so inform the authority which granted the approval. Upon receiving the relevant communication, that authority shall inform thereof the other Parties to the 1958 Agreement applying this regulation by means of a communication form conforming to the model in Annex 1, Part 2, Appendix 1 or 2 to this Regulation.

11. NAMES AND ADDRESSES OF TECHNICAL SERVICES CONDUCTING APPROVAL TESTS, AND OF TYPE APPROVAL AUTHORITIES

The Contracting Parties to the Agreement which apply this Regulation shall communicate to the Secretariat of the United Nations the names and addresses of the technical services responsible for conducting approval tests and of the Type Approval Authorities which grant approval and to which forms certifying approval or extension or refusal or withdrawal of approval, issued in other countries, are to be sent.

(1) As defined in the Consolidated Resolution on the Construction of Vehicles (R.E.3.), document ECE/TRANS/WP.29/78/Rev.6, para. 2. —

http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html

(2) The distinguishing numbers of the Contracting Parties to the 1958 Agreement are reproduced in Annex 3 to the Consolidated Resolution on the Construction of Vehicles (R.E.3), document ECE/TRANS/WP.29/78/Rev. 6, Annex 3 —

http://www.unece.org/trans/main/wp29/wp29wgs/wp29gen/wp29resolutions.html