EN ISO 8561:1995
(Main)Household frost-free refrigerating appliances - Refrigerators, refrigerator-freezers, frozen food storage cabinets and food freezers cooled by internal forced air circulation - Characteristics and test methods (ISO 8561:1995)
Household frost-free refrigerating appliances - Refrigerators, refrigerator-freezers, frozen food storage cabinets and food freezers cooled by internal forced air circulation - Characteristics and test methods (ISO 8561:1995)
Characteristics of household refrigerators, refrigerators freezers, frozen food storage cabinets and food freezers cooled by forced air circulation and test methods for the checking of these characteristics
Haushalts-Frost-Free-Kühlgeräte - Kühschränke, Kühl-Gefriergeräte, Gefriergeräte und Tiefkühlgeräte gekühlt durch Zwangsumluft - Eigenschaften und Prüfverfahren (ISO 8561:1995)
Diese Norm legt die wesentlichsten Eigenschaften von Haushalt-Tiefkühl- und Gefriergeräten, die durch interne Zwangsumluft gekühlt werden, sowie von Haushalt-Kühlgeräten mit oder Keller-, Eisbereitungs- oder Gefriergutlagerfach und von Kühl-Gefriergeräten mit oder ohne Kellerfach, bei denen mindestens das Gefrier- und/oder das (die) Gefriergutlagerfach (-fächer) durch interne Zwangsumluft gekühlt wird (werden) und die fabrikmäßig komplett montiert worden sind, fest. Sie legt die Prüfverfahren fest, nach denen diese Eigenschaften zu überprüfen sind.
Appareils de réfrigération ménagers à air pulsé - Réfrigérateurs, réfrigérateurs-congélateurs, conservateurs de denrées congelées et congélateurs à air pulsé intérieur - Caractéristiques et méthodes d'essai (ISO 8561:1995)
Household frost-free refrigerating appliances - Refrigerators, refrigerator-freezers, frozen food storage cabinets and food freezers cooled by internal forced air circulation - Characteristics and test methods (ISO 8561:1995)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 8561:2000
01-december-2000
Household frost-free refrigerating appliances - Refrigerators, refrigerator-freezers,
frozen food storage cabinets and food freezers cooled by internal forced air
circulation - Characteristics and test methods (ISO 8561:1995)
Household frost-free refrigerating appliances - Refrigerators, refrigerator-freezers, frozen
food storage cabinets and food freezers cooled by internal forced air circulation -
Characteristics and test methods (ISO 8561:1995)
Haushalts-Frost-Free-Kühlgeräte - Kühschränke, Kühl-Gefriergeräte, Gefriergeräte und
Tiefkühlgeräte gekühlt durch Zwangsumluft - Eigenschaften und Prüfverfahren (ISO
8561:1995)
Appareils de réfrigération ménagers a air pulsé - Réfrigérateurs, réfrigérateurs-
congélateurs, conservateurs de denrées congelées et congélateurs a air pulsé intérieur -
Caractéristiques et méthodes d'essai (ISO 8561:1995)
Ta slovenski standard je istoveten z: EN ISO 8561:1995
ICS:
97.040.30 Hladilni aparati za dom Domestic refrigerating
appliances
SIST EN ISO 8561:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 8561:2000
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SIST EN ISO 8561:2000
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SIST EN ISO 8561:2000
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SIST EN ISO 8561:2000
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SIST EN ISO 8561:2000
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SIST EN ISO 8561:2000
INTERNATIONAL ISO
STANDARD
8561
First edition
1995-11-15
Household frost-free refrigerating
appliances - Refrigerators,
refrigerator-freezers, frozen food storage
cabinets and food freezers cooled by
internal forced air circulation -
Characteristics and test methods
Appareils de rGfrig&ation menagers i!~ air puls6 - Refrig&ateurs,
kfrig&a teurs-congbla teurs, conserva teurs de denrkes congelkes et
congelateurs a air pulse int&ieur - Caractkistiques et methodes d ’essai
Reference number
ISO 8561:1995(E)
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SIST EN ISO 8561:2000
ISO 8561:1995(E)
Contents
Page
1
1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Normative references . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 1
3 Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
6
4 Classif ication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Materials, design and manufacture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
6 Required characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
7 Determination of linear dimensions, volumes and areas . . . . . . . 10
8 General test conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*. 14
9 Testing the airtightness of door or lid Seal(s) . . . . . . . . . . . . . . . . . . . . . . . . . 17
IO Testing the opening forte of door(s) or lid(s) . . . . . . . . . . . . . . . . . . . . . . . 17
11 Testing the durability of hinges and handles of door(s) and
lid(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18
Testing the mechanical strength of shelves and similar
12
components .*. 19
13 Testing the storage temperatures . . 19
14 Water vapour condensation test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
15 Energy-consumption test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Temperature rise test (if applicable) . . . . . . . . . . . . . . . . . . . .*.
16 23
17 Freezing test (if applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
18 Ice-making test (if applicable) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
19 Test for absence of odour and taste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
20 Final test report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
21 Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
22 Marking 30
23 Technical and advertising literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
24 Instructions for use and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
0 ISO 1995
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
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SIST EN ISO 8561:2000
Q ISO
ISO 8561:1995(E)
Annexes
A Particular conditions for various countries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B Bibliography 51
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SIST EN ISO 8561:2000
0 ISO
ISO 8561:1995(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide
federation of national Standards bodies (ISO member bodies). The work
of preparing International Standards is normally carried out through ISO
technical committees. Esch member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. ISO
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 8561 was prepared by Technical Committee
lSO/TC 86, ßefrigeration, Subcommittee SC 5, Construction and testing
of household refrigera tors.
Annexes A and B of this International Standard are for information only.
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SIST EN ISO 8561:2000
ISO 8561:1995(E)
INTERNATIONAL STANDARD 0 ISO
Household frost-free refrigerating appliances -
Refrigerators, refrigerator-freezers, frozen food storage
cabinets and food freezers cooled by internal forced air
circulation - Characteristics and test methods
described should in principle be applied to one and the
1 Scope
same unit.
This International Standard specifies the essential
These tests tan also be made individually for the
characteristics for household frozen food storage
study of a particular characteristic.
cabinets and food freezers cooled by internal forced
air circulation and for household refrigerators with or
Where no test method is specified, the particular re-
without cellar, ice-making or frozen food storage
quirement concerned is to be considered as a rec-
compartments, and of refrigerator-freezers with or
ommendation.
without cellar compartment and with at least the food
freezer and or frozen food storage compartment(s)
The electrical and mechanical safety requirements
cooled by internal forced air circulation, which are
applicable to household refrigerating appliances are
wholly factory assembled, and lays down the meth-
specified in IEC 335-2-24. This International Standard
ods of test for the checking of these characteristics. does not apply to household frost-free refrigerating
appliances operating on energy sources other than
Appliances with one refrigerating System in which electricity.
there are compartments, some cooled by forced air
Additional safety requirements applicable to the re-
circulation and others by natura1 convection, shall be
frigerating Systems of household refrigerating appli-
tested in accordance with this International Standard.
ances are given in ISO 5149.
Compartments cooled by natura1 convection but hav-
ing a separate independent refrigerating System shall
be tested in accordance with the applicable refer-
enced Standard. 2 Normative references
However, all compartments are automatically de- The following Standards contain provisions which,
frosted with automatic disposal of the defrost water. through reference in this text, constitute provisions
of this International Standard. At the time of publica-
This International Standard does not apply to house- tion, the editions indicated were valid. All Standards
hold refrigerators (which are covered in ISO 7371),
are subject to revision, and Parties to agreements
refrigerator-freezers (which are covered in ISO 8187) based on this International Standard are encouraged
or frozen food storage cabinets and food freezers to investigate the possibility of applying the most re-
(which are covered in ISO 5155) not cooled by internal cent editions of the Standards indicated below.
forced air circulation. Members of IEC and ISO maintain registers of cur-
rently valid International Standards.
The tests described in this International Standard are
type tests. When it is necessary to verify the per- ISO 534:1988, Paper and board - Determination of
formante of a refrigerating appliance of a given type thickness and apparent bulk density tir apparent sheet
density.
in relation to this International Standard, all the tests
1
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SIST EN ISO 8561:2000
0 ISO
ISO 8561:1995(E)
ISO 817: -11, ßefrigerants - Number designation. 3.1.3 household frost-free frozen food storage
cabinet (hereinafter referred to as “frozen food stor-
ISO 5149: 1993, Mechanical refrigerating Systems
age cabinet ”): Frost-free appliance having one or
used for cooling and heating - Safety requirements.
more compartments which is (are) suitable for the
storage of frozen food under “three Star” storage
IEC 335-2-24: 1992, Safety of household and similar
conditions (see 3.2.5.4).3)
Part 2: ParticuIar requirements
e/ectricaI appliances -
for refrigera tors, food freezers and ice-makers. 3.1.4 household frost-free food freezer (herein-
after referred to as “food freezer ”): Frost-free appli-
ante having one or more compartments suitable for
freezing, from + 25 “C to - 18 “C for class SN, N and
3 Definitions
ST appliances, + 32 “C to - 18 “C for class T appli-
ances (see clause 4) a quantity of at least 4,5 kg of
For the purposes of this International Standard, the
test packages per 100 I of its storage volume in
following definitions apply.
24 h, and in no case less than 2 kg, under the test
conditions specified in clause 17, and which is also
3.1 household frost-free appliance: lnsulated cabi-
suitable for the storage of frozen food under “three
net of suitable volume and equipment for household
Star” storage conditions (see 3.2.5.4).3)
use, cooled by one or more energy-consuming
means, in which all compartments are automatically
NOTE 1 From the Point of view of installation, there are
defrosted with automatic disposal of the defrost wa-
various types of household refrigerating appliances:
ter, and at least one compartment is cooled by a
freestanding, wall-mounted, built-in, etc.
frost-free System (see 3.1.5).
3.1.5 frost-free System: System in which cooling is
3.1 .l household frost-free refrigerator (hereinafter
provided by forced air circulation and the evaporator(s)
referred to as “refrigerator ”): Frost-free appliance
is (arc) defrosted by an automatic defrost System.
having one or more compartments intended for the
Characteristics of the “frost-free” System are:
preservation of food, one at least of which is suitable
for the storage of fresh food.
a) the System is automatically operated to prevent
the permanent formation of frost on all refriger-
3.1.2 household frost-free refrigerator-freezer
ated surfaces;
(hereinafter referred to as “refrigerator-freezer ”):
Frost-free appliance having two or more compart-
b) no accumulation of ice or frost forms on the
ments.
stored food;
At least one compartment (the fresh food storage
c) storage temperatures in the fresh food compart-
compartment) is suitable for the storage of fresh food,
ment, the frozen food storage and/or freezer
and at least one compartment (the food freezer com-
compartment and the cellar compartment (if any)
partment) is suitable for freezing fresh food and for
are maintained within the Iimits specified in this
the storage of frozen food under “three Star” storage
International Standard;
conditions (see 3.2.5.4).
d) the water from defrosting is disposed of auto-
3.1.2.1 household refrigerator-freezer type 1: A
r matically.
refrigerator-freezer having a Single temperature con-
trol device for regulating the temperatures of the
3.2 Compartments and sections
fresh food storage and food freezer compartments.*)
3.2.1 fresh food storage compartment: Compart-
ment intended for the storage of unfrozen food, which
3.1.2.2 household refrigerator-freezer type II: A
may be itself divided into sub-compartments, and in
refrigerator-freezer having the means for separate
which the temperatures tan be maintained in accord-
regulation of the temperatures of the fresh food stor-
age and food freezer compartments.*) ante with 6.2.1.
1) To be published. (Revision of ISO 817:1974)
2) In the case of a cellar compartment there tan be an additional means for regulating the temperature of that compartment.
3) In certain instances, “two Star” sections and/or compartments are permitted within the appliance (see 7.2.6).
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SIST EN ISO 8561:2000
0 ISO ISO 8561:1995(E)
of frozen food under “three Star” storage conditions
3.2.2 cellar compartment: Compartment intended
(see 3.2.5.4).4)
for the storage of particular foods or beverages at a
temperature warmer than that of the fresh food stor-
age compartment, and in which the temperatures tan 3.3 General definitions
be maintained in accordance with 6.2.1.
3.3.1 top-opening type: Appliance in which the
compartment: Compart- compartment(s is (are) accessible from the top.
3.2.3 low-temperature
ment which may be either
3.3.2 upright type: Appliance in which the
- an ice-making compartment; or
compartment(s is (arc) accessible from the front.
- a frozen food storage compartment.
3.3.3 Overall dimensions (doors or lids closed):
Measurements of the rectangular parallelepiped,
3.2.4 ice-making compartment: Compartment in- whose base is horizontal, within which the appliance
tended specifically for the freezing and storage of is inscribed to include the complete appliance except
water ice-cubes. for the handle, the protrusion of which, if any, is to
be specified separately.
3.2.5 frozen food storage compartments: Com-
partments intended specifically for the storage of fro- 3.3.4 Overall space required in use (doors or lids
zen food. They are classified according to their open): Overall dimensions including the handle, in-
temperature, as follows. creased by the space necessary for free circulation
of the cooling air when the appliance is in Service,
plus the space necessary to allow opening of the
3.2.5.1 “one Star” compartment: Compartment in
means of access to that minimum angle permitting
which the storage temperature (see 3.4.3.2) meas-
removal of all removable Parts such as Containers and
ured as described in clause 13, is not warmer than
shelves (see figure 1).
- 6 “C.
3.2.5.2 “two Star” compartment: Compartment in
which the storage temperature (see 3.4.3.2), meas-
ured as described in clause 13, is not warmer than
- 12 “C.
3.2.5.3 “two Star” section: Part of a food freezer
compartment (or cabinet) or of a “three Star” com-
partment (or cabinet) which is not self-contained (i.e.
which does not have its own individual access door
or lid), in which the storage temperature (see
3.4.3.2), measured as described in clause 13, is not
warmer than - 12 “C (see 7.2.6).
Width
3.2.5.4 “three Star” compartment: Compartment
in which the storage temperature (see 3.4.3.2),
measured as described in clause 13, is not warmer
Figure 1 - Overall space required in use (upright
18 oC.4’
than -
tYPeI
3.2.6 food freezer compartment: Compartment
suitable for freezing from + 25 “C to - 18 “C for class
3.3.5 Volumes
SN, N and ST appliances, and from + 32 “C to
- 18 “C for class T appliances (see clause 4) a quan-
3.3.5.1 gross volume: The volume within the inside
tity of at least 4,5 kg of test packages per 100 I of its
Walls of the appliance, or of a compartment with ex-
storage volume in 24 h, and in no case less than
under the test conditions specified in ternal door, without internal fittings, doors or lids be-
2 kg
clause 17, and which is also suitable for the storage ing closed.
4) In certain instances, “two Star” sections and/or compartments are permitted within the compartment (or cabinet) (See
7.26).
3
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SIST EN ISO 8561:2000
63 ISO
ISO 8561:1995(E)
line(s): Permanent mark(s
The gross volume is calculated by subtracting from 3.3.8 load limit ) indicat-
the total volume the volume occupied by air ducts, ing the limits of “three Star” frozen food storage
evaporator, fan and other associated accessories. volume(s).
3.3.5.2 rated gross volume: Gross volume stated
by the manufacturer.
3.4 Definitions relating to some Performance
characteristics
3.3.5.3 total gross volume: Sum of the gross vol-
umes of the fresh food storage compartment(s), low-
3.4.1 energy consumption: Consumption of an ap-
temperature compartment(s), food f reezer
pliance over a period of 24 h, running under stable
compartment [including any “two Star” section(s),
operating conditions at an ambient temperature of
and/or compartment(s) contained therein], and cellar
+ 25 “C (in the case of class SN, class N and class ST
compartment(s), as applicable, even if their doors or
appliances) or + 32 “C (in the case of class T appli-
lids are independent.
ances (see clause 4) and measured under the con-
ditions specified in clause 15.
3.3.5.4 rated total gross volume: Total gross vol-
ume stated by the manufacturer.
NOTE 2 In some countries a different method for the
measurement of energy consumption is required by low
3.3.5.5 storage volume: That part of the gross vol- (see annex A).
ume of any compartment which remains after de-
duction of the volume of components and spaces
3.4.2 rated energy consumption: Energy con-
recognized as unusable for the storage of food, de-
sumption stated by the manufacturer.
termined by the method given in 7.2.
3.4.3 Storage temperatures
3.3.5.6 rated storage volume: Storage volume
stated by the manufacturer.
3.4.3.1 fresh food storage temperature, t~: Arith-
metical average of the instantaneous temperatures
3.3.5.7 total storage volume: Sum of the storage
t,, tZ and ts measured in “M” packages (see 3.4.6) and
volumes of the appliance, comprising the storage
placed at given Points in the fresh food storage com-
volumes of the fresh food storage compartment(s),
partment as specified in 8.5 .
low-temperature compartment(s), food freezer com-
partment [including any “two Star” section(s) and/or
t MMBX is the maximum value of tm.
I
compartment(s) contained therein] and cellar
compartment(s), as applicable.
3.4.3.2 frozen food storage temperature, t* * *,
t **, t* (as appropriate): Maximum temperature of the
3.3.5.8 rated total storage volume: Total storage
warmest “M” package of a load placed in storage as
volume stated by the manufacturer.
specified in 8.6.
3.3.6 Storage surface
3.4.3.3 cellar compartment temperature, tcm:
Arithmetical average of the instantaneous tempera-
3.3.6.1 shelf: For the purpose of this International
tures tcl, tc2 and tc3 (as appropriate) measured in ‘IM”
Standard, a shelf is any horizontal surface (shelves,
packages (see 3.4.6) and placed at given Points in the
partitions, etc.) on which food tan be placed.
cellar compartment as specified in 8.5.
lt may be formed by one component or by compo-
t is the maximum value of tcm.
cm,max
nents fitted side by side, which may be fixed or re-
movable.
3.4.4 freezing capacity: Mass of test packages
whose temperature (taken as the instantaneous
3.3.6.2 storage shelf area: Sum of the horizontal
arithmetical mean temperature of ali the “M” pack-
projections of the storage surfaces within the storage
ages) tan be Iowered from the loading temperature
volume including door shelves and the bottom of each
of + 25 “C or + 32 “C (see 3.1.4 or 3.2.6) to - 18 “C
compartment, determined in accordance with 7.3.
in 24 h under the test conditions specified in
clause 17. The freezing capacity is expressed in kilo-
3.3.6.3 rated storage shelf area: Storage shelf area
grams.
stated by the manufacturer.
3.3.7 load limit(s): Surface enveloping the frozen 3.4.4.1 rated freezing capacity: Freezing capacity
food storage volume(s). stated by the manufacturer.
4
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SIST EN ISO 8561:2000
ISO 8561:1995(E)
0 ISO
dard, the duration of the defrosting cycle must be
3.4.5 Defrosting
taken into account, R’ has been introduced in Order to
3.4.5.1 automatically defrosted: An evaporator is have a clear distinction between this and the per-
automatically defrosted where no action is necessary centage running time R of conventional appliances.
by the user to intiate the removal of frost accumu-
For appliances with a hot-gas defrosting System, the
lation nor to restore normal Operation, and where the
time required for hot-gas defrosting shall not be in-
disposal of the defrost water is automatic.
cluded in the running time of the refrigerating unit.
3.4.5.2 automatic disposal of defrost water: Dis-
posal of defrost water is automatic where the removal ice-making capacity: Quantity of ice the ap-
3.4.10
and the evaporation of the defrost water does not re- pliance is capable of producing within 24 h, or the
quire any action by the User. time necessary for the freezing of the water in the ice
tray(s) supplied with the appliance.
3.4.6 “M” package: A test package in accordance
with 8.2, of dimensions 50mmx100mmx
3.4.11 ambient temperature: Temperature in the
100 mm, fitted with a temperature Sensor at its geo-
space surrounding the appliance under test. It is the
metric centre.
arithmetical average of the mean value of tempera-
tures tal and ta2, measured at two Points located
3.4.7 Cycles
350 mm from the vertical centreline of the side Walls
of the appliance at 1 m above the floor line.
3.4.7.1 operating cycle: That period which com-
mences at the initiation of a defrosting cycle and ter-
3.4.12 temperature rise time: Period between the
minates at the moment of initiation of the next
moment when, under specified test conditions, the
defrosting cycle.
temperature of the warmest “M” package in the food
freezer compartment (or cabinet) or in any “three
3.4.7.2 defrosting cycle: The period between the
Star” compartment (or cabinet) reaches - 18 “C to the
moment when the means of defrosting the
moment when any of the “M” packages (excluding
evaporator(s) is switched on and the moment when
any “two Star” sections) first reaches a temperature
the refrigeration process is re-established.
of - 9 “C when the Operation of the refrigerating sys-
tem is interrupted.
3.4.8 stable operating conditions: Sta ble operating
conditions exist when the appliance has been left
3.5 Definitions relating to the refrigerating sys-
running for a minimum time according to the manu-
tem
facturer ’s instruction without any adjustment of tem-
perature control setting(s) during this time, and when
there is no marked trend away from the storage 3.5.1 refrigerant: Fluid used for heat transfer in a
temperatures (see table2) after this time. refrigerating System, which absorbs heat at a low
temperature and a low pressure of the fluid and re-
3.4.9 percentage running time, R’ (apparatus with
jects heat at a higher temperature and a higher
on/off control for the refrigerating Source): Under
pressure of the fluid, usually involving changes of
given conditions of ambient temperature and of
state of the fluid.
internal storage temperature, the ratio
3.5.2 cooling device: Device containing the
R ’=$-x 100
evaporator or in thermal contact with the evaporator;
it may be a device with fins or may be suitably shaped
where for the storage of frozen food or water ice-cubes.
is the duration of the refrigerating System
d’
3.6 Definitions relating to compression-type ap-
Operation during an operating cycle (see
pliances
3.4.7.1);
3.6.1 compression-type appliance: Appliance in
D’ is the total duration of the operating cycle
which refrigeration is effected by the vaporization at
minus the duration of the defrosting cycle
low pressure in a heat exchanger (evaporator) of a
(see 3.4.7.2), even if defrosting occurs by
liquid refrigerant, the vapour thus formed being re-
a hot-gas System (see also figure2).
stored to the liquid state by mechanical compression
to a higher pressure and subsequent cooling in an-
When calcul ating the percentage r unning time for an
appliance in acc0 rdan ce with this Interna tional Stan- other heat exchanger (condenser).
5
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SIST EN ISO 8561:2000
Q ISO
ISO 8561:1995(E)
3.6.2 hermetically sealed motor-driven refriger-
4 Classification
ating compressor: Motor-compressor in which the
compressor and the electric motor (or its moving Parts With respect to the ability of appliances to operate in
at least) are enclosed in a Shell rendered gastight by extreme ambient temperatures, this International
welding, brazing or other means such that dismantling Standard relates to the four climate classes given in
is not normally possible after assembly. lt does not
table 1.
include moving Parts outside the Shell.
Table 1 - Climate classes
3.6.3 hermetically sealed compressor refrigerat-
Values in degrees Celsius
ing System: Complete System, essentially comprising
Range of ambient
a hermetically sealed motor-driven compressor, a
temperatures in which
condenser, a pressure-reducing device, an evaporator,
the appliances are
and all other Parts containing refrigerant permanently
intended to be used,
Class Symbol
interconnected by the manufacturer by welding, braz-
and for which the
ing or other means.
required storage
temperatures shall be
fulfilled (see 6.2.1)
3.6.4 refrigerant compressor: Mechanically oper-
ated component which withdraws refrigerant vapour
Extended
SN + IOto +32
from the evaporator and discharges it at a higher
temperate
r I
pressure to the condenser.
Temperate N + 16 to +32
ST + 18 to +38
Subtropical
3.6.5 expansion device: Device in which the
Tropical + 18 to +43
pressure of the refrigerant is reduced from that of the
condensed liquid to that of the evaporator.
3.6.6 condenser: Heat exchanger in which, after
5 Materials, design and manufacture
compression, vaporized refrigerant is liquefied by re-
jecting heat to an external cooling medium.
5.1 General
3.6.7 evaporator: Heat exchanger in which, after
Appliances shall be constructed in such a manner as
expansion, the liquid refrigerant is vaporized by ab-
to ensure adequate Performance and durability in use.
sorbing heat from the medium to be refrigerated.
Their Performance in use is checked by applying a
series of relevant tests.
3.6.8 thermostat: Device which automatically regu-
This clause defines some characteristics which are
lates the Operation of a refrigerating System according
not tested but to which the attention of the manu-
to the temperature of an evaporator or of a compart-
facturer is drawn.
ment (or cabinet).
3.6.9 fan: Device which provides cooling by means
5.2 Materials and finishes
of a forced air stream to a condenser and/or to one
or more compartments of the appliance.
Materials used inside appliances shall not transmit
odours or taste to food. When testing in accordance
3.6.10 defrost timer: Device which controls the ini- with clause 19, the mean value of the individual re-
tiation, dura
...
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