Amendment 1 - Household refrigerating appliances - Characteristics and test methods - Part 3: Energy consumption and volume

Amendement 1 - Appareils de réfrigération à usage ménager - Caractéristiques et méthodes d'essai - Partie 3: Consommation d'énergie et volume

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Published
Publication Date
29-Nov-2020
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PPUB - Publication issued
Completion Date
30-Nov-2020
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IEC 62552-3:2015/AMD1:2020 - Amendment 1 - Household refrigerating appliances - Characteristics and test methods - Part 3: Energy consumption and volume
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IEC 62552-3
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Household refrigerating appliances – Characteristics and test methods –
Part 3: Energy consumption and volume
Appareils de réfrigération à usage ménager – Caractéristiques et méthodes
d'essai –
Partie 3: Consommation d'énergie et volume
IEC 62552-3:2015-02/AMD1:2020-11(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 62552-3
Edition 1.0 2020-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
A MENDMENT 1
AM ENDEMENT 1
Household refrigerating appliances – Characteristics and test methods –
Part 3: Energy consumption and volume
Appareils de réfrigération à usage ménager – Caractéristiques et méthodes
d'essai –
Partie 3: Consommation d'énergie et volume
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.030 ISBN 978-2-8322-9068-2

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62552-3:2015/AMD1:2020
© IEC 2020
FOREWORD

This amendment has been prepared by subcommittee 59M: Performance of electrical household

and similar cooling and freezing appliances, of IEC technical committee 59: Performance of

household and similar electrical appliances.
The text of this amendment is based on the following documents:
FDIS Report on voting
59M/128/FDIS 59M/134/RVD

Full information on the voting for the approval of this amendment can be found in the report on

voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will

remain unchanged until the stability date indicated on the IEC website under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
_____________
5.1 General
Replace the NOTE with the following new content:

NOTE Refer to the requirements in Annex B of IEC 62552-1:2015 and IEC 62552-1:2015/AMD1:2020 for variable

temperature compartments. For energy testing, these are operated on the function (continuous temperature

operating range) that uses the most energy.
9 Test report
Replace the existing content with the following new content:

A test report should be prepared that includes all of the relevant information listed in Annex F of

IEC 62552-1:2015/AMD:2020 for tests undertaken in accordance with this document.
---------------------- Page: 4 ----------------------
IEC 62552-3:2015/AMD1:2020 – 3 –
© IEC 2020
A.1 General
Replace the fourth paragraph with the following new content:

The refrigerating appliance shall have air temperature sensors installed at the positions

specified in Annex D of IEC 62552-1:2015 and IEC 62552-1:2015/AMD1:2020. The

determination of compartment air temperature during energy testing shall be as specified in

Annex D of IEC 62552-1:2015 and IEC 62552-1:2015/AMD1:2020.
A.2.6.1 General
Replace the fourth paragraph with the following new content:

Where the ice storage space occupies a complete compartment, the temperature sensor

placements shall be in accordance with Annex D of IEC 62552-1:2015 and
IEC 62552-1:2015/AMD1:2020 (not A.2.6.5 of this document).
A.2.6.5 Position of the temperature sensor in automatic icemakers
Replace the first sentence of the first paragraph with the following:
An automatic icemaker bin shall have a single temperature sensor located in the
position specified as follows for all energy tests:
B.4.3 Case SS2 calculation of values
Replace Formula (13) with the following new formula:
ΔTh
dfj−i
TT( )− (13)
SS2−i av−endX−endY−i
(tt− )
end−−Y end X
Replace the definition of ∆Th with:
df-i

∆Th is the accumulated temperature difference over time in each compartment i in Kh

dfj-i
as determined in accordance with C.3.3 for the defrost and recovery period j
commencing at the end of period X
Replace Formula (14) with the following new formula:
Rt −−Rt Δt
end−−Y end X drj
CRt = (14)
SS2
(tt− )
end−−Y end X
Replace the definition ∆t of with:

∆t is the additional compressor run time in h as determined in accordance with C.3.3

drj
for the defrost and recovery period j commencing at the end of period X
---------------------- Page: 5 ----------------------
– 4 – IEC 62552-3:2015/AMD1:2020
© IEC 2020
C.3.3 Case DF1 calculation of values
Add the following new content below the NOTE:

During a load processing efficiency test, it is possible that one or more defrosts occur for

which a correction must be made. This correction is based on splitting the defrost and recovery

energy in a fixed part and the energy used by the defrost heater:
Fixed defrost adder: ∆E = ∆E − E (63)
df-adderj dfj df-heaterj
where:

E is the measured defrost heater energy during the defrost and recovery period j,

df-heaterj
expressed in Wh

NOTE This formula is applied to each valid defrost during steady state. A representative value for the fixed defrost

adder (∆E ) is determined in accordance with Formula (64) and is subsequently used in the evaluation of a load

df-adder

processing test [using Formula (51) or, if multiple defrost systems are present, Formula (65)].

C.4 Number of valid defrost and recovery periods
At the end of the clause, add the following note:

NOTE The defrost heater energy E and incremental defrost and recovery energy ∆E for new appliances and

df-heaterj dfj

appliances that have not been operated for some time may be initially low until the defrost heater energy stabilises.

C.5 Calculation of representative defrost energy and temperature
Replace Formula (22) with the following new formula:
∑ dfj
j=1
ΔE = F (22)
df df
Add the following text below the line ∆E :
dfj

F is a regional scaling factor that can be used to compensate for frost load and usage factor,

which impacts the defrost intervals. The default value for F is 1,0.
Add the following paragraph above Formula (23):

To correct a load processing efficiency test where one or more defrosts occurs, a

representative value for the fixed defrost adder is defined:
∑ df−adderj
j=1
ΔE = (64)
df−adder
D.2 Elapsed time defrost controllers
Replace NOTE 2 with the following new note:

NOTE 2 The same timers could be used as compressor run time controllers or as elapsed time controllers,

depending on how they are configured in the refrigerating appliance.
---------------------- Page: 6 ----------------------
IEC 62552-3:2015/AMD1:2020 – 5 –
© IEC 2020
D.3 Compressor run time defrost controllers
Replace the entire clause with the following:
D.3 Compressor run time defrost controllers

For these controllers, the defrost interval is defined by the compressor run time (or on time in

hours) (or, in some cases, the compressor run time plus the maximum time allocated for defrost

heater operation). These controllers are only applicable to single-speed compressors. The

defrost interval is therefore approximately inversely proportional to the total heat load on the

refrigeration system (ambient temperature and user loads plus any internal heat loads). The

most common defrost run time controllers range from 6 h to 12 h of compressor run time.

Typically, this would result in defrost intervals of the order of 12 h to 30 h (elapsed time) at

elevated ambient temperatures and somewhat longer defrost intervals at lower ambient

temperatures.

NOTE 1 The same timers could be used as compressor run time controllers or as elapsed time controllers,

depending on how they are configured in the refrigerating appliance.

If the run time controller is not accessible (or where it is not clear whether the controller is a run

time controller) or where the laboratory is not able to directly measure the controller operation

and does not know its run time, the value for the proxy run time shall be measured by testing as

set out below. Any routine energy tests or other tests may be used for this purpose.

Each measurement shall be undertaken over a whole defrost control cycle and tests shall be

undertaken in at least two different ambient temperatures in order to verify that it is a run time

controller and to estimate the value of t . The period selected shall comply with the following

prt
requirements:
• the first defrost shall qualify as a valid defrost as specified in Clause C.3;

• the test period shall include at least part of the subsequent defrost and recovery period

that is initiated automatically without any intervention (defrost heater on).

The estimated proxy run time of the compressor run time defrost controller for a given set of

test data that complies with these requirements is given by:
t = t + t (25)
prtj crtj dhj
where

t is the estimated proxy run time of the compressor run time defrost controller for the test

prtj
period starting with defrost and recovery period j in h;

t is the measured compressor run time in h from the initiation of defrost heater operation

crtj

for defrost and recovery period j to the initiation of defrost heater operation for the

subsequent defrost and recovery period j + 1;

is the time from the start of the defrost heater on until the compressor restarts, in h,

dhj
during defrost and recovery period j where the timer advances during the heater

operation; otherwise, a value of zero if the timer does not advance during the heater

operation.

NOTE 2 A common configuration is that the defrost heater is allocated a fixed maximum time of operation in the

timer defrost controller (say 20 min). The actual heater on time will vary depending on the frost load for the specific

defrost. The time between the heater off and the compressor on can vary, but the total time from heater on to

compressor on is typically constant in this configuration. Where the laboratory has any doubt about the appliance

configuration, it is assumed that the defrost timer does not advance when the defrost heater is on, so that only

compressor on time is counted and the value of t is set to zero in Formula (25).
dhj

Additional routine tests undertaken at other ambient temperatures and/or temperature

control settings, including user related loads, such as door openings and small processing

---------------------- Page: 7 ----------------------
– 6 – IEC 62552-3:2015/AMD1:2020
© IEC 2020

loads, should be reviewed to assess defrosting behaviour. The observed defrost interval

should be consistent with the measured proxy run time, otherwise it shall be classified as a

variable defrost controller.

NOTE 3 These tests can be used to detect whether the run time controller is overridden by some other control

mechanism during normal use conditions.

To qualify as a compressor run time defrost controller, the coefficient of variation (standard

deviation divided by the mean) of the measured values for either compressor proxy run time

t or compressor run time alone t shall be less than 5 % for the defrost intervals

prtj crtj

examined. Where the product does not comply with this requirement, it shall be classified as a

variable defrost controller. The value of t used in subsequent calculations shall be the

prt
average of all measured values of t .
prtj

Once confirmed, the proxy run time can be used to calculate the actual defrost interval (in

elapsed time) for any temperature control setting, ambient temperature and load

processing condition, as a function of the compressor run time. For all refrigerating

appliances with compressor run time defrost controllers, the percentage run time shall be

reported for steady state conditions in Annex B and the extra compressor run time (in h) shall

be calculated for defrost and recovery periods (Annex C, Formula (21)). The defrost interval

for each test condition and temperature control setting is given by:
t −Δtt−
tt−Δ
prt dr dh
crt dr
t (26)
CRt CRt
SS SS
where

is the estimated defrost interval (elapsed time) for each temperature control setting

and ambient temperature under test, in h, including the impact of defrost and
recovery;

t is the representative measured proxy run time of the compressor run time defrost

prt
controller (in h) in accordance with Formula (25);

CRt is the compressor run time (as a percentage) during the steady state operation for

each temperature control setting and ambient temperature under test as determined

in B.3.3 or B.4.3;

∆t is the representative incremental compressor run time (in h) for defrost and recovery

in accordance with Annex C (Clause C.5) in accordance with Formula (21);

t is the representative time from the start of the defrost heater on until the compressor

restarts (in h) during a defrost and recovery period where the timer advances during

the heater operation, otherwise a value of zero;

t is the representative compressor run time (in h) from the initiation of one defrost heater

crt

operation until the initiation of the next defrost heater operation (this can be determined

by rearranging Formula (25)).

The exclusion of the heater on time t and t is the default assumption for calculations in

dhj dh

Formula (25) and Formula (26). If the defrost timer does not advance during the defrost heater

and t is set to be zero for both
operation or if the laboratory is unsure, then the value of t
dhj dh

equations. Heater on time t and t shall be consistently applied in Formula (25) and Formula

dhj dh
(26).
D.4.1 Variable defrost controllers
Replace the first paragraph with the following:

For this type of controller, the defrost interval is varied in proportion to the frost load on the

evaporator. Most systems do not measure the frost load on the evaporator directly (but this is

---------------------- Page: 8 ----------------------
IEC 62552-3:2015/AMD1:2020 – 7 –
© IEC 2020

possible), so these types of systems are usually controlled by software which uses a number of

parameters to indirectly estimate the frost load and adjust the defrost interval progressively.

D.4.2 Variable defrost controllers – declared defrost intervals
Replace the first bullet point of the third paragraph with the following:
Δt shall not exceed 12 h at an ambient temperature of 32 °C (elapsed time).
d-min
E.3.2 Requirements
Replace the second paragraph by the following new paragraph:

For linear interpolation to be valid, the temperature difference between test runs in the

compartment used for energy interpolation shall not exceed 4 K.
E.3.3 Calculations
Replace item 1 with the following content:

1) Check that ABS(T – T ) is 4 K or less and that one test point is below target temperature

i1 i2

and one test point is above target temperature. Where this condition is not met, linear

interpolation is not permitted on this compartment.
G.5.3 Quantification of additional energy used to process the load
Replace Formula (51) and the text below it with the following new content:
ΔΔE (E− E )− P×(t− t )− zE× − E (51)
additional−test end start after end start df−−adder ∑ df heater j
j=1
where
ΔE is the additional energy consumed by the refrigerating appliance during the
additional-test
test to fully process the loaded added as specified in Clause G.3;
E is the accumulated energy reading at the start of load processing efficiency
start
test as defined in G.4.1, in Wh;
E is the accumulated energy reading at the end of load processing efficiency
end
test as defined in G.4.4, in Wh;
P is the steady state power consumption that occurs after the load has been
after
fully processed during the valid energy test period (Clause B.3 or Clause B.4)
as defined in G.4.4, in W;
t is the test time at the start of load processing efficiency test as defined in
start
G.4.1, in h;
t is the test time at the end of load processing efficiency test as defined in
end
G.4.4, in h;

ΔEdf-adder is the average defrost adder calculated in Annex C for all valid defrosts for the

relevant ambient temperature;
z the number of defrosts that occur during the load processing efficiency test;
---------------------- Page: 9 ----------------------
– 8 – IEC 62552-3:2015/AMD1:2020
© IEC 2020
𝑧𝑧

∑ 𝐸𝐸 is the sum of the defrost heater energy for the z defrosts that occur during the

𝑗𝑗=1 𝑑𝑑𝑑𝑑−ℎ𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒𝑒 𝑗𝑗
load processing efficiency test.

If there are multiple defrost systems active, the adder has to be defined for each defrost system

i in accordance with Formula (65). The additional energy to process the added load then

becomes:
n nz
ΔΔE = E− E − P×−t t − zE× − E (65)
( ) ( )
( )
additional−test end start after end start ∑ i df−−adder i ∑∑ df heater ij
i 11i j
where:
n is the number of defrost systems in the appliance;

z is the number of defrosts occurring during the load processing efficiency tests for defrost

system i.
G.5.5 Load processing multiplier

In the first sentence of the second paragraph, change processing load to processing load

(bold type).
H.2.2 Determination of volume
Replace the content of the subclause with the following new content:
H.2.2 Determination of volume

The volume shall take into account the exact shapes of the walls, including all depressions or

projections. For through-the-door ice and water dispensers, the ice chute shall be included in the

volume up to the dispensing function.

The items below shall be considered as being in place and their volumes deducted:

a) the volume of control housings, including integral parts of it;

b) the volume of the evaporator space (which includes any space made inaccessible by the

evaporator) (see H.2.3);

c) the volume of air ducts required for proper cooling and operation of the unit;

d) space occupied by shelves moulded into the inner door panel;

e) the volume of any insulating partition between compartments and/or sub-compartments.

An average thickness of greater than 5 mm is considered to be an insulating partition.

For clarification, the through-the-door ice and water dispensers and the insulating hump are not

included in the volume. No part of the dispenser unit shall be included as volume.

NOTE When the volume is determined, internal fittings are considered as not being in place, such as

• shelves,
• removable partitions,
• containers,
• convenience features (not classified as sub-compartments),
• interior light housings and lights.
H.2.3 Volume of evaporator space
Replace item c) with:
---------------------- Page: 10 ----------------------
IEC 62552-3:2015/AMD1:2020 – 9 –
© IEC 2020

c) In the case of refrigerant-filled shelving, the volume above the uppermost shelf and below

the lowermost shelf, if the distance between the shelf and the nearest horizontal plane of

the cabinet inner wall is less than or equal to 50 mm. All refrigerated shelves are considered

as not present.
Add item d).

d) In the case where a fan is installed in an unfrozen compartment with a refrigerated wall

evaporator or a plate style evaporator, the volume of the fan and the fan scroll.

Add the new Clause H.4:
H.4 Calculation of the volume of the section or sub-compartment in the
compartment whose target temperatures are different from each other

Figures H.6 to H.10 show typical examples of volume calculation for a two-star section or

compartment inside the freezer compartment (three-star or four-star) and should be

considered as generic examples. The examples shown in Figures H.6 to H.10 may be combined

to adapt the calculation to be representative of the section or compartment in the refrigerating

appliance under consideration.

Figures H.6, H.7 and H.9 can also be applied to a chill sub-compartment inside a fresh food

compartment.
Figure H.6 – Part with partition in the freezer is a two-star compartment
(or a chill compartment next to a fresh food compartment)
---------------------- Page: 11 ----------------------
– 10 – IEC 62552-3:2015/AMD1:2020
© IEC 2020
Figure H.7 – Part without partition next to the freezer or fresh food
compartment is a two-star compartment or a chill compartment, respectively
Figure H.8 – Freezer door shelves are a two-star section
---------------------- Page: 12 ----------------------
IEC 62552-3:2015/AMD1:2020 – 11 –
© IEC 2020
Figure H.9 – Drawer in the freezer is a two-star section
(or a chill sub-compartment in a fresh food compartment)
Figure H.10 – Space between a door shelf and drawer-type two-star section
I.2 Variable defrost – calculation of defrost intervals
Replace the first item in the list in the third paragraph with the following:
– Δt shall not exceed 12 h at an ambient temperature of 32 °C (elapsed time).
d-min
___________
---------------------- Page: 13 ----------------------
– 12 – IEC 62552-3:2015/AMD1:2020
© IEC 2020
AVANT-PROPOS

Le présent amendement a été établi par le sous-comité 59M: Aptitude à la fonction des

appareils électrodomestiques de refroidissement et analogues et appareils de réfrigération, du

comité d'études 59 de l'IEC: Aptitude à la fonction des appareils électrodomestiques et

analogues.
Le texte de cet amendement est issu des documents suivants:
FDIS Rapport de vote
59M/128/FDIS 59M/134/RVD

Le rapport de vote indiqué dans le tableau ci-dessus donne toute information sur le vote ayant

abouti à l'approbation de cet amendement.

Le comité a décidé que le contenu de cet amendement et de la publication de base ne sera pas

modifié avant la date de stabilité indiquée sur le site web de l'IEC sous "http://webstore.iec.ch"

dans les données relatives à la publication recherchée. A cette date, la publication sera

• reconduite,
• supprimée,
• remplacée par une édition révisée, ou
• amendée.
_____________
5.1 Généralités
Remplacer le contenu de la NOTE par le nouveau contenu suivant:

NOTE Voir les exigences dans l'IEC 62552-1:2015 et dans l'IEC 62552-1:2015/AMD1:2020 Annexe B relative aux

compartiments à température variable. Pour les essais d'énergie, ils sont utilisés sur la fonction (plage de

fonctionnement de température continue) qui utilise le plus d'énergie.
9 Rapport d'essai
Remplacer le contenu existant par le nouveau contenu suivant:

Il convient d'établir un rapport d'essai qui inclut toutes les informations correspondantes listées

dans l'IEC 62552-1:2015/AMD1:2020 Annexe F pour les essais effectués conformément à cette

norme.
A.1 Généralités
Remplacer le 4 alinéa par le nouveau contenu suivant:

L'appareil de réfrigération doit avoir des capteurs de température d'air installés aux endroits

indiqués dans l'IEC 62552-1:2015 et l'IEC 62552-1:2015/AMD1:2020, Annexe D. La

détermination de la température de l'air du compartiment pendant les essais d'énergie doit être

comme spécifié dans l'IEC 62552-1:2015 et l'IEC 62552-1:2015/AMD1:2020, Annexe D.

---------------------- Page: 14 ----------------------
IEC 62552-3:2015/AMD1:2020 – 13 –
© IEC 2020
A.2.6.1 Généralités
Remplacer le 4 alinéa par le nouveau contenu suivant:

Lorsque l'espace d'entreposage occupe un compartiment complet, les positions du capteur de

température doivent être conformes à l'IEC 62552-1:2015 et l'IEC 62552-1:2015/AMD1:2020

Annexe D (pas A.2.6.5 de cette partie).

A.2.6.5 Position du capteur de température dans les appareils à glaçons automatiques

Remplacer la première phrase du premier alinéa par ce qui suit:

L'appareil à glaçons automatique doit être équipé d'un capteur de température situé à

l'endroit spécifié ci-après pour tous les essais d'énergie:
B.4.3 Cas SS2 calcul des valeurs
Remplacer la Formule (13) par la nouvelle formule suivante:
∆𝑇𝑇ℎ
𝑑𝑑𝑑𝑑𝑑𝑑−𝑖𝑖
𝑇𝑇 =�𝑇𝑇 �−� � (13)
𝑆𝑆𝑆𝑆2−𝑖𝑖 𝑎𝑎𝑎𝑎−𝑓𝑓𝑖𝑖𝑓𝑓𝑓𝑓−𝑓𝑓𝑖𝑖𝑓𝑓𝑓𝑓−𝑖𝑖
�𝑡𝑡 −𝑡𝑡 �
𝑑𝑑𝑖𝑖𝑓𝑓−𝑌𝑌 𝑑𝑑𝑖𝑖𝑓𝑓−𝑋𝑋
Remplacer la définition de ∆Th par:
df-i
∆Th est la différence de température cumulée dans le temps dans chaque
dfj-i
compartiment i en Kh, déterminée conformément au C.3.3 pour la période de
dégivrage et reprise j qui commence à la fin de la période X
Remplacer la Formule (14) par la nouvelle formule suivante:
𝑅𝑅𝑡𝑡 −𝑅𝑅𝑡𝑡 −∆𝑡𝑡
𝑑𝑑𝑖𝑖𝑓𝑓−𝑌𝑌 𝑑𝑑𝑖𝑖𝑓𝑓−𝑋𝑋 𝑑𝑑𝑑𝑑𝑑𝑑
𝐶𝐶𝐶𝐶𝐶𝐶 = (14)
𝑆𝑆𝑆𝑆2
�𝑡𝑡 −𝑡𝑡 �
𝑑𝑑𝑖𝑖𝑓𝑓−Y 𝑒𝑒𝑓𝑓𝑑𝑑−𝑋𝑋
Remplacer la définition de ∆t par:

∆t est le temps de fonctionnement supplémentaire du compresseur, en h, déterminé

drj
conformément au C.3.3 pour la période de dégivrage et reprise j qui commence à
la fin de la période X
C.3.3 Cas DF1 calcul des valeurs
Ajouter le nouveau contenu suivant sous la NOTE:

Au cours d'un essai d'efficacité du traitement de la charge, il est possible qu'un ou plusieurs

dégivrages se produisent, auquel cas
...

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