To verify as prescribed in appendix 1, paragraphs 1 (b) and (c), to this annex the effectiveness of the thermal appliance of each item of refrigerated, mechanically refrigerated, heated or mechanically refrigerated and heated equipment in service, the competent authorities may:

Apply the methods described in sections 3.1, 3.2, 3.3 and 3.4 of this appendix; or

Appoint experts to apply the particulars described in sections 5.1 and 5.2 of this appendix, when applicable, as well as the following provisions.

6.1 Refrigerated equipment other than equipment with fixed eutectic accumulators

It shall be verified that the inside temperature of the empty equipment, previously brought to the outside temperature, can be brought to the limit temperature of the class to which the equipment belongs, as prescribed in this annex, and maintained below the said limit temperature for a period t

∆T is the difference between + 30 °C and the said limit temperature, and

∆T’ is the difference between the mean outside temperature during the test and the class limit temperature, the outside temperature being not lower than + 15 °C.

If the results are acceptable, the equipment may be kept in service as refrigerated equipment of its initial class for a further period of not more than three years.

6.2 Mechanically refrigerated equipment

6.2.1 Independent equipment

(i) Equipment constructed from 2 January 2012.

It shall be verified that, when the outside temperature is not lower than + 15 °C, the inside temperature of the empty equipment can be brought to the class temperature within a maximum period (in minutes), as prescribed in the table below:

Outside temperature | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | °C

Class C, F | 360 | 350 | 340 | 330 | 320 | 310 | 300 | 290 | 280 | 270 | 260 | 250 | 240 | 230 | 220 | 210 | min

Class B, E | 270 | 262 | 253 | 245 | 236 | 228 | 219 | 211 | 202 | 194 | 185 | 177 | 168 | 160 | 151 | 143 | min

Class A, D | 180 | 173 | 166 | 159 | 152 | 145 | 138 | 131 | 124 | 117 | 110 | 103 | 96 | 89 | 82 | 75 | min

The inside temperature of the empty equipment must have been previously brought to the outside temperature.

If the results are acceptable, the equipment may be kept in service as mechanically refrigerated equipment of its initial class for a further period of not more than three years.

(ii) Transitional provisions applicable to equipment in service

For equipment constructed prior to the date given in 6.2 (i), the following provisions shall apply:

It shall be verified that, when the outside temperature is not lower than +15° C, the inside temperature of the empty equipment, which has been previously brought to the outside temperature, can be brought within a maximum period of six hours:

In the case of equipment in classes A, B or C, to the minimum temperature, as prescribed in this annex;

In the case of equipment in classes D, E or F, to the limit temperature, as prescribed in this annex.

If the results are acceptable, the equipment may be kept in service as mechanically refrigerated equipment of its initial class for a further period of not more than three years.

6.2.2 Non-independent equipment

(i) Multi-compartment equipment

The test prescribed in (i) shall be conducted simultaneously for all compartments. During the tests, if the dividing walls are movable, they shall be positioned such that the volumes of the compartments correspond with the maximum refrigeration demand.

Measurements shall be taken until the warmest temperature measured by one of the two sensors located inside each compartment matches the class temperature.

For multi-compartment equipment whose compartment temperatures may be modified, a supplementary reversibility test shall then be conducted:

The temperatures of the compartments shall be selected in such a way that adjacent compartments are, to the extent possible, at different temperatures during the test. Certain compartments shall be brought to the class temperature (–20 °C) while others shall be at 0 °C. Once such temperatures are reached, the temperature settings shall be reversed for each compartment, thus bringing the compartments that were at 0 °C to –20 °C and those that were at –20 °C to 0 °C.

It is verified that compartments at 0 °C have a correct temperature regulation at 0 °C ± 3 °C for at least 10 minutes when the other compartments are at –20 °C. Subsequently, the settings for each of the compartments shall be reversed and the same verifications shall be conducted.

In the case of equipment fitted with a heating function, the tests shall begin after the efficiency test when the temperature is –20 °C. Without opening doors, the compartments whose settings had been set at 0 °C shall be warmed, while the other compartments are kept at a temperature of –20 °C. When the control criterion is met, the compartments’ settings shall be reversed. There shall be no time limit to carry out these tests.

In the case of equipment without a heating function, it shall be permitted to open the doors of the compartments to expedite the temperature rise of the compartments in question.

The equipment shall be considered compliant if:

• For each compartment, the class temperature has been reached within the time limit shown in the table in (i). To define this time limit, the lowest (coldest) mean outside temperature shall be selected from the two sets of measurements taken with the two outside sensors; and

The additional tests mentioned in (iii), when required, are satisfactory.

(ii) Non-independent equipment, the refrigeration unit of which is powered by the engine of the vehicle

It shall be verified that, when the outside temperature is not lower than 15° C, the inside temperature of the empty equipment can be maintained at the class temperature, after cool-down and stabilization

1 Equipment can be pre-cooled before the test

, when the engine is running at the idle speed set by the manufacturer (where applicable), for a minimum period of one hour and thirty minutes.

The internal temperature taken into consideration is the average temperature of the two sensors measured during the period selected for the test. The equipment is considered compliant if it meets the following conditions:

The average internal temperature is included in the ranges defined below:

the amplitude of the temperature variations around the class temperature is +/– 3 °C.

If the results are satisfactory, the equipment may be kept in service as mechanically refrigerated equipment in its initial class for a further period of not more than three years.

(iii) Multi-compartment and multi-temperature equipment

The test prescribed in (i) shall be conducted simultaneously for all compartments. During the tests, if the dividing walls are movable, they shall be positioned such that the volumes of the compartments correspond with the maximum refrigeration demand.

Measurements shall be taken until the warmest temperature measured by one of the two sensors located inside each compartment matches the class temperature.

For multi-temperature equipment whose compartment temperatures may be modified, a supplementary reversibility test shall then be conducted:…

For equipment constructed prior than 6 January 2018, this provision need not be applied. In this case the equipment shall comply with the requirements of 6.2.1(i) or 6.2.1(ii) as applicable for the date of construction.

6.2.3 Replacement of refrigerant fluid

At the request of the manufacturer, replacement of the original refrigerant fluid of mechanically refrigerated equipment in service is allowed under the following conditions:

a) a test report or addendum confirming equivalence to a similar mechanically refrigerated unit with the drop-in refrigerant fluid is available in accordance with annex 1, appendix 2, section 4.5 of the ATP Agreement; and

b) an efficiency test according to 6.2.1 or 6.2.2 has been successfully carried out.

In the event that the request is accepted, the manufacturer’s plate must be corrected accordingly.

In the particular case of replacement of the refrigerant fluid such as those mentioned in the table below, subparagraph (a) only requires the manufacturer to request from the official test station the issue of an addendum without any additional testing.

Original refrigerant | Drop-in refrigerant

R404A | R452A

6.3 Heated equipment

It shall be verified that the difference between the inside temperature of the empty equipment and the outside temperature which governs the class to which the equipment belongs as prescribed in this annex (a difference of 22 °C in the case of class A, 32 °C in the case of class B, 42 °C in the case of class C and 52 °C in the case of class D) can be achieved within a maximum period of 360 minutes. If the results are acceptable, the equipment may be kept in service as heated equipment of its initial class for a further period of not more than three years.

6.4 Mechanically refrigerated and heated equipment

The check is carried out in two stages.

(i) During the first stage, it shall be verified that, when the outside temperature is not lower than + 15 °C, the inside temperature of the empty equipment can be brought to the class temperature within a maximum period (in minutes), as prescribed in the table in paragraph 6.2 of this appendix.

The inside temperature of the empty equipment shall have been previously brought to the outside temperature.

(ii) In the second stage, it shall be verified that the difference between the inside temperature of the empty equipment and the outside temperature which governs the class to which the equipment belongs as prescribed in this annex (a difference of 22 °C in the case of classes A, E and I, of 32 °C in the case of classes B, F and J, of 42 °C in the case of classes C, G and K, and of 52 °C in the case of classes D, H, and L), can be achieved within a maximum period of 360 minutes.

If the results are acceptable, the equipment may be kept in service as mechanically refrigerated and heated equipment of its initial class for a further period of not more than three years.

6.5 Temperature measuring points

Temperature measuring points protected against radiation shall be placed inside the body and outside the body.

For measuring the inside temperature of the body (Ti), at least 2 temperature measuring points shall be placed inside the body at a maximum distance of 50cm from the front wall, 50cm from the rear door at a height of a minimum of 15 cm and a maximum of 20 cm above the floor area.

For measuring the outside temperature of the body (Te), at least 2 temperature measuring points shall be placed,

• One measuring point vertically within 20 cm around the middle height of the body, at a distance of 10 to 20 cm from the side wall, and

• Another measuring point 20 to 50 cm from the air inlet of the condenser unit.

The final reading shall be from the warmest measuring point inside the body at the end of the cool down test. The outside temperature used to determine the maximum cool down time, in case of equipment manufactured from 2 January 2012, is the average temperature of all readings from the outside measuring points until the class temperature has been reached.

6.6 Provisions common to refrigerated, mechanically refrigerated and heated equipment

(i) If the results are not acceptable, refrigerated, mechanically refrigerated, heated, or mechanically refrigerated and heated equipment may be kept in service in its initial class only if it passes at a testing station the tests described in sections 3.1, 3.2, 3.3 and 3.4 of this appendix; it may then be kept in service in its initial class for a further period of six years.

(ii) If the equipment consists of units of serially-produced refrigerated, mechanically refrigerated, heated, or mechanically refrigerated and heated equipment of a particular type satisfying the requirements of appendix l, paragraph 6, to this annex and belonging to one owner, then in addition to an inspection of the thermal appliances to ensure that their general condition appears to be satisfactory, the effectiveness of the cooling or heating appliances of not less than l% of the number of units may be determined at a testing station in conformity with the provisions of sections 3.1, 3.2, 3.3 and 3.4 of this appendix. If the results of the examinations and of the determination of effectiveness are acceptable, all the equipment in question may be kept in service in its initial class for a further period of six years.