Refrigerated display scooping cabinets and pozzetto for gelato - Classification, requirements, performance and energy consumption testing

This document specifies classification, requirements for the construction, performance and energy consumption testing of gelato scooping cabinets and pozzetto used to sale and/or display artisan and self made gelato. It specifies test conditions and methods for checking that the requirements have been satisfied, their marking and the list of their characteristics to be declared by the manufacturer.

Verkaufskühlmöbel und Pozzetti für Speiseeis - Klassifizierung, Anforderungen, Leistung und Energieaufnahmeprüfung

Dieses Dokument legt die Klassifizierung, Anforderungen an die Konstruktion sowie Leistungs- und Energie-aufnahmeprüfung von Verkaufskühlmöbeln für Speiseeis und Pozzetti fest, die für den Verkauf und/oder die Präsentation von handwerklich hergestelltem und selbstgefertigtem Speiseeis verwendet werden. Es wer-den Prüfbedingungen und Verfahren zur Überprüfung der Erfüllung der Anforderungen festgelegt; darüber hinaus werden deren Markierung sowie eine Auflistung der durch den Hersteller anzugebenden Eigen-schaften aufgeführt.

Vitrines réfrigérées de vente de glace et pozzetto - Classification, exigences, performance et essai de consommation énergétique

La présent document spécifie la classification, les exigences de construction, les performances et les essais de consommation énergétique des vitrines réfrigérées de vente de glace et pozzetto utilisés pour la vente et/ou l’exposition de glace artisanale et faite main. Elle spécifie les conditions et les méthodes d’essai pour vérifier que ces exigences ont été respectées, leur marquage et la liste des caractéristiques devant être déclarées par le fabricant.

Hladilne vitrine in skrinje za sladoled - Razvrščanje, zahteve, zmogljivost in preskus porabe energije

Ta dokument določa razvrščanje, zahteve, zmogljivost in preskus porabe energije hladilnih vitrin in skrinj za sladoled, ki se uporabljajo za prodajo in/ali predstavitev butičnega in domačega sladoleda. Določa preskusne pogoje in metode, na podlagi katerih se preverja skladnost s temi zahtevami, njihovo označevanje in seznam njihovih lastnosti, ki jih mora navesti proizvajalec.

General Information

Status
Published
Publication Date
02-Jul-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
03-Jul-2019
Completion Date
03-Jul-2019

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SLOVENSKI STANDARD
SIST EN 16838:2019
01-september-2019
Nadomešča:
SIST EN 16838:2016
Hladilne vitrine in skrinje za sladoled - Razvrščanje, zahteve, zmogljivost in
preskus porabe energije
Refrigerated display scooping cabinets and pozzetto for gelato - Classification,
requirements, performance and energy consumption testing

Verkaufskühlmöbel und Pozzetti für Speiseeis - Klassifizierung, Anforderungen, Leistung

und Energieaufnahmeprüfung
Vitrines réfrigérées de vente de glace et pozzetto - Classification, exigences,
performance et essai de consommation énergétique
Ta slovenski standard je istoveten z: EN 16838:2019
ICS:
97.130.20 Hladilne naprave za trgovine Commercial refrigerating
appliances
SIST EN 16838:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 16838:2019
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SIST EN 16838:2019
EN 16838
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2019
EUROPÄISCHE NORM
ICS 97.130.20 Supersedes EN 16838:2016
English Version
Refrigerated display scooping cabinets and pozzetto for
gelato - Classification, requirements, performance and
energy consumption testing

Vitrines réfrigérées de vente de glace et pozzetto - Verkaufskühlmöbel und Pozzetti für Speiseeis -

Classification, exigences, performance et essai de Klassifizierung, Anforderungen, Leistung und

consommation énergétique Energieaufnahmeprüfung
This European Standard was approved by CEN on 14 March 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16838:2019 E

worldwide for CEN national Members.
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SIST EN 16838:2019
EN 16838:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Symbols and abbreviations ......................................................................................................................... 6

5 Requirements ................................................................................................................................................... 8

5.1 Construction ...................................................................................................................................................... 8

5.1.1 General ................................................................................................................................................................ 8

5.1.2 Materials ............................................................................................................................................................. 8

5.1.3 Refrigerating system ...................................................................................................................................... 9

5.1.4 Electrical components ................................................................................................................................... 9

5.1.5 Temperature display ..................................................................................................................................... 9

5.2 Operating characteristics .......................................................................................................................... 10

5.2.1 Absence of odour and taste....................................................................................................................... 10

5.2.2 Classification according to temperature ............................................................................................. 10

5.2.3 Defrosting ....................................................................................................................................................... 12

5.2.4 Water vapour condensation ..................................................................................................................... 13

5.2.5 Energy consumption ................................................................................................................................... 13

5.2.6 Specific energy consumption ................................................................................................................... 13

6 Test condition ................................................................................................................................................ 13

6.1 General ............................................................................................................................................................. 13

6.2 Tests outside test room .............................................................................................................................. 13

6.3 Tests inside test room ................................................................................................................................ 15

6.3.1 General ............................................................................................................................................................. 15

6.3.2 Test room — General design, walls, floor and radiant heat ......................................................... 15

6.3.3 Preparation and general test procedures for gelato scooping cabinet and pozzetto ......... 24

6.3.4 Temperature test ......................................................................................................................................... 31

6.3.5 Water vapour condensation test ............................................................................................................ 34

6.3.6 Electrical energy consumption test ....................................................................................................... 36

6.3.7 Heat extraction rate measurement when condensing unit is remote from gelato

scooping cabinet and pozzetto ................................................................................................................ 36

7 Test report ...................................................................................................................................................... 43

7.1 General ............................................................................................................................................................. 43

7.2 Tests outside test room .............................................................................................................................. 43

7.3 Tests inside test room ................................................................................................................................ 43

7.3.1 General test conditions .............................................................................................................................. 43

7.3.2 Gelato scooping cabinet and pozzetto preparation ......................................................................... 44

7.3.3 Temperature test ......................................................................................................................................... 45

7.3.4 Water vapour condensation test ............................................................................................................ 46

7.3.5 Electrical energy consumption test ....................................................................................................... 46

7.3.6 Heat extraction rate measurement when the condensing unit is remote from the

gelato scooping cabinet and pozzetto ................................................................................................... 46

8 Marking ............................................................................................................................................................ 48

8.1 Marking plate ................................................................................................................................................. 48

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SIST EN 16838:2019
EN 16838:2019 (E)

8.2 Information to be supplied by the manufacturer ............................................................................. 48

Annex A (informative) Test for absence of odour and taste ....................................................................... 50

A.1 Preparation and testing ............................................................................................................................. 50

A.1.1 Ambient temperature ................................................................................................................................. 50

A.1.2 Cleaning ............................................................................................................................................................ 50

A.1.3 Thermostat setting ....................................................................................................................................... 50

A.1.4 Samples ............................................................................................................................................................ 50

A.1.5 Test period ...................................................................................................................................................... 50

A.2 Examination of samples ............................................................................................................................. 51

A.2.1 Conditions ....................................................................................................................................................... 51

A.2.2 Evaluation ........................................................................................................................................................ 51

Annex B (normative) Data requirements for performance and energy rating of gelato

scooping cabinets and pozzetto ............................................................................................................... 52

B.1 Scope ................................................................................................................................................................. 52

B.2 Terms and definitions ................................................................................................................................. 52

B.3 Data requirements for rating of gelato scooping cabinets and pozzetto with

incorporated condensing unit.................................................................................................................. 53

B.3.1 General ............................................................................................................................................................. 53

B.3.2 Evaluation of DEC .......................................................................................................................................... 54

B.3.3 Evaluation of FEC .......................................................................................................................................... 54

B.3.4 Evaluation of LEC .......................................................................................................................................... 54

B.3.5 Evaluation of AEC .......................................................................................................................................... 55

B.3.6 Evaluation of DFEC ....................................................................................................................................... 55

B.3.7 Evaluation of PEC .......................................................................................................................................... 55

B.3.8 Other electric energy consumption ....................................................................................................... 55

B.3.9 Alternate components - Effect on DEC ................................................................................................... 55

B.4 Data requirements for rating of gelato scooping cabinets and pozzetto with remote

condensing unit ............................................................................................................................................. 55

Bibliography ................................................................................................................................................................. 57

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SIST EN 16838:2019
EN 16838:2019 (E)
European foreword

This document (EN 16838:2019) has been prepared by Technical Committee CEN/TC 44 “Commercial

and Professional Refrigerating Appliances and Systems, Performance and Energy Consumption”, the

secretariat of which is held by UNI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by January 2020, and conflicting national standards shall

be withdrawn at the latest by January 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 16838:2016.

In comparison with the previous edition, the following technical modifications have been made:

— addition of pozzetto in the whole standard;

— title modification in order to get it consistent with the content of the standard;

— update terminology;
— update of existing figures and addition of new figures;
— editorial improvement.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,

Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,

Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North

Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United

Kingdom.
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SIST EN 16838:2019
EN 16838:2019 (E)
1 Scope

This document specifies classification, requirements for the construction, performance and energy

consumption testing of gelato scooping cabinets and pozzetto used to sale and/or display artisan and self

made gelato. It specifies test conditions and methods for checking that the requirements have been

satisfied, their marking and the list of their characteristics to be declared by the manufacturer.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 60335-1, Household and similar electrical appliances — Safety — Part 1: General requirements (IEC

60335-1)

EN 60335-2-89, Household and similar electrical appliances — Safety — Part 2-89: Particular

requirements for commercial refrigerating appliances with an incorporated or remote refrigerant

condensing unit or compressor (IEC 60335-2-89)

ISO 5149-2, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 2:

Design, construction, testing, marking and documentation
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
gelato scooping cabinets

cabinet cooled by a refrigerating system which enables to store, to display and to scoop artisan and self

made gelato contained in tubs, within prescribed temperature limits
Note 1 to entry: Artisan and self made gelato are hereafter called “gelato”.
3.2
pozzetto

cabinet cooled by a refrigerating system which enables to store and to scoop gelato contained in tubs,

within prescribed temperature limits
3.3
storage section

non-visible part of the gelato scooping cabinet used only to store the product, separated from the display

volume and with a different access
3.4
display section

visible part of the gelato scooping cabinet used to display and to scoop the product

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SIST EN 16838:2019
EN 16838:2019 (E)
3.5
pozzetto section
part of the pozzetto used to scoop the product
3.6
covers
sliding door or night curtain or swivel panes
3.7
lid
removable cover for pozzetto section
3.8
gelato tub
container intended to store gelato
3.9
net volume
volume containing gelato within the top edge of the tub
3.10
top display area of gelato tub
area delimited by the external perimeter of a gelato tub open side
3.11
front display area of gelato tub
area delimited by the external perimeter of a gelato tub front side
3.12
lateral display area of gelato tub
area delimited by the external perimeter of a gelato tub lateral side
3.13
total net storage volume
sum of net volume of each tubs contained in the storage section
3.14
total net volume of pozzetto section
sum of net volume of each tubs contained in pozzetto section
3.15
total display area
TDA
sum of the top, front and lateral display areas of each visible gelato tubs
4 Symbols and abbreviations

t running time — time during which compressor is running (or solenoid valve is open), within

run
24 h, expressed in hours

t stopping time — time during which compressor is not running (or solenoid valve is closed)

stop
within 24 h and excluding defrost time, expressed in hours
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SIST EN 16838:2019
EN 16838:2019 (E)

t defrost time — time during which compressor is running and hot gas solenoid valve is open

deft
(or reverse cycle valve is open)
q mass flow rate of liquid refrigerant in kilograms per second
Δt time between two consecutive measuring samples, in hours
N number of measuring samples in 24 h
max
n number of defrosts during 24 h
deft
DEC direct electrical energy consumption, in kilowatt hours per 24 h period

REC refrigeration electrical energy consumption, in kilowatt hours per 24 h period, for remote

gelato scooping cabinet and remote pozzetto for compression-type refrigerating system

TEC total energy consumption in kilowatt hours per 24 h period
TDA total display area, in square meters
Vp total net volume of pozzetto section, in litres
Vs total net volume of storage section, in litres

TEC/TDA specific energy gonsumption (SEC-D) for gelato scooping cabinet expressed in kilowatt

hours per 24 h per square meters

TEC/Vp specific energy consumption (SEC-Vp) for pozzetto expressed in kilowatt hours per 24 h per

litres
t relative or percentage running time:
run run
(1)
tt+ 24− t
run stop deft
Where
tt++ t =24 h
run stop deft
Φ instant heat extraction rate in kilowatts

h , h specific enthalpy in kilojoules per kilogram, where state in Figure 12 corresponds to

8 4

refrigerant outlet, and state in Figure 13 to refrigerant inlet, of gelato scooping cabinet and

pozzetto
θ refrigerant temperature at evaporator outlet, in degrees Celsius

θ refrigerant temperature at the gelato scooping cabinet and pozzetto outlet, in degrees

Celsius

θ refrigerant temperature at the gelato scooping cabinet and pozzetto inlet, in degrees

Celsius
θ refrigerant temperature at evaporator inlet, in degrees Celsius

p refrigerant pressure at the gelato scooping cabinet and pozzetto outlet, in Pascals

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SIST EN 16838:2019
EN 16838:2019 (E)

θ arithmetic average of evaporator-saturated temperature obtained from pressure p by

mrun 8

referring to table of saturation properties for refrigerant in use — during t , in degrees

run
Celsius

θ arithmetic average of evaporator-saturated temperature obtained from pressure p by

min 8

referring to table of saturation properties for refrigerant in use — during the last 10 % of

all running periods, in degrees Celsius
T = θ + 273,15 in Kelvin
mrun mrun
5 Requirements
5.1 Construction
5.1.1 General
5.1.1.1 Strength and rigidity

The Gelato scooping cabinet or pozzetto and its parts shall be constructed with adequate strength and

rigidity for normal conditions of handling, transport and use and attention shall be given to the following:

1) interior fittings, including shelves, baskets, rails, etc. and their supports, shall be sufficiently strong

for the duty required;

2) where sliding shelves, baskets, trays or drawers are fitted they shall retain their shape and ease of

movement when fully loaded;

3) any fitments which are provided with stops to prevent accidental removal shall be self-supporting

when fully loaded and withdrawn to the limit of the stops.
5.1.1.2 Pipes and connections

Pipes and connections to moving or resiliently mounted parts shall be arranged so as not to foul or

transmit harmful vibrations to other parts. All other pipes and connections shall be securely anchored

and sufficient free length and/or vibration eliminators shall be provided to prevent failure due to fatigue.

Where necessary, pipes and valves shall be adequately thermally insulated.
5.1.1.3 Condensate drainage

Where drains, drip trays or evaporation receptacles are fitted, they shall have ample capacity and shall

be easily accessible and cleanable.

Any condensate or defrost water receptacle, or group of receptacles, requiring to be emptied manually

shall have a capacity equivalent to at least 48 h of normal operation in the appropriate climate class for

which the gelato scooping cabinet or pozzetto is intended.
5.1.1.4 Joints and seams

All construction joints and seams within the net volume shall prevent the accumulation of potentially

contaminating substances.

All construction joints and seams within the net volume shall permit the easy removal of any deposits of

potentially contaminating substances.
5.1.2 Materials

The materials shall be durable and shall not favour the development of mould or emit odours.

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SIST EN 16838:2019
EN 16838:2019 (E)

Under normal conditions of use, materials in contact with foodstuffs shall be resistant to moisture and

shall neither be toxic nor contaminate them.
5.1.3 Refrigerating system
5.1.3.1 Design and construction

The design and construction of all parts of the refrigerating system subject to internal pressure shall take

into account the maximum working pressure to which they are subjected when the gelato scooping

cabinet and pozzetto are in operation or at rest.

For gelato scooping cabinets and pozzetto with integral condensing unit or components thereof which

are charged with refrigerant prior to transportation, the maximum ambient temperature during transit

shall be taken into account. All refrigerant containing components shall be in accordance with ISO 5149-

5.1.3.2 Condensation

There shall be suitable means to prevent water condensed on cold surfaces of the gelato scooping cabinet

and pozzetto and their parts from harmfully affecting the operation of the refrigerating system or its

controls.
5.1.3.3 System protection

For gelato scooping cabinets fitted with covers, the refrigerating system shall suffer no damage if any

cover in the gelato scooping cabinet is left open while the gelato scooping cabinet is operating in an

ambient temperature corresponding to the climate class (see Table 4) for which the gelato scooping

cabinet is intended.

When the cover is kept open under normal operating conditions (for example, during product loading)

or is left open accidentally, any automatic motor overload protective device may come into operation.

For pozzetto fitted with lids, the refrigerating system shall suffer no damage if any lid in the pozzetto is

left open while the pozzetto is operating in an ambient temperature corresponding to the climate class

(see Table 4) for which the pozzetto is intended.

When the lid is kept open under normal operating conditions (for example, during product loading) or is

left open accidentally, any automatic motor overload protective device may come into operation.

5.1.3.4 Refrigerant

When deciding on the refrigerant for the system, attention shall be given to the possible hazards

associated with the use of certain refrigerants, due to their toxicity, flammability etc. Guidance on this

point is available in ISO 5149-2.
5.1.4 Electrical components
Electrical components shall be in accordance with EN 60335-2-89 and EN 60335-1.
5.1.5 Temperature display
5.1.5.1 General

The gelato scooping cabinets and pozzetto shall incorporate a temperature display instrument showing

the air temperature in the refrigerated equipment to provide an indication of the operation and

functioning of refrigerating equipment and information on its operating state.

NOTE As a rule, measured air temperature is not identical with gelato temperature in gelato scooping cabinets

and pozzetto.
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SIST EN 16838:2019
EN 16838:2019 (E)
5.1.5.2 Temperature-measuring instrument

Suitable temperature-measuring instruments shall be used, i.e. those that fulfil the following

requirements:

— the unit symbol (°C) shall be inscribed or displayed on the temperature-measuring instrument;

— the range of measurement shall be at least from −25 °C to +15 °C;

— the scale division or smallest numerical increment shall be less than or equal to 1 °C;

— the maximum errors shall be 2 K over the total measuring range;
— the time constant t of the sensor shall be equal to or less than 20 min.

NOTE The t time is the time in which 90 % of a sudden temperature change of 20 °C is indicated, the

measurement medium being moderately agitated air (velocity 1 m/s).
5.1.5.3 Temperature sensor location

The temperature sensor location shall be readily accessible to enable on site testing for the correct

indication of temperature and replacement of the temperature measuring instrument on site in service.

NOTE 1 The temperature sensor of a thermometer is considered to be “readily accessible” if it is reachable

directly for examination. It ought to be necessary to remove access panel(s) to carry out replacement.

NOTE 2 For gelato scooping cabinets and pozzetto with natural convection cooling, the positioning of the

temperature sensor in a guide tube is also considered to be “readily accessible” if the sensor is introduced into and

removed from the guide tube without a tool.

Wherever possible, the mounting method shall not supply heat to, or withdraw heat from the

temperature sensor.

The temperature sensor shall be protected against heat radiation from the external ambient.

The temperature sensor location is defined as part of the temperature test of the gelato scooping cabinet

and pozzetto. During the temperature test air temperatures at the declared sensor location shall be

measured and these values noted in the test report.

NOTE 3 It is the responsibility of the supplier and end user to ensure that the temperature measurements comply

with national regulation on temperature control of gelato.
5.2 Operating characteristics
5.2.1 Absence of odour and taste

The absence of odour and taste is not compulsory. An optional test method is given in Annex A.

5.2.2 Classification according to temperature

The performance of gelato scooping cabinet and pozzetto shall comply with one of the clas

...

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