SIST EN 12102-2:2019

SLOVENSKI STANDARD
oSIST prEN 12102-2:2018
01-januar-2018
.OLPDWVNHQDSUDYHHQRWH]DKODMHQMHNDSOMHYLQHWRSORWQHþUSDONHLQUD]YODåHYDOQLNL
]HOHNWULþQLPLNRPSUHVRUML'RORþDQMHUDYQL]YRþQHPRþLGHO*UHOQLNLYRGHV
WRSORWQRþUSDONR
Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically
driven compressors - Determination of the sound power level - Part 2: Heat pump water
heaters
Klimageräte, Flüssigkeitskühlsätze, Wärmepumpen und Entfeuchter mit elektrisch
angetriebenen Verdichtern - Bestimmung des Schallleistungspegels - Teil 2:
Wassererhitzer mit Wärmepumpen
Climatiseurs, groupes refroidisseurs de liquide, pompes à chaleur avec compresseur
entraîné par moteur électrique - Détermination du niveau de puissance acoustique -
Partie 2 : Chauffe-eau à pompe à chaleur
Ta slovenski standard je istoveten z: prEN 12102-2
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
27.080 7RSORWQHþUSDONH Heat pumps
91.140.65 Oprema za ogrevanje vode Water heating equipment
oSIST prEN 12102-2:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12102-2:2018

---------------------- Page: 2 ----------------------
oSIST prEN 12102-2:2018


DRAFT
EUROPEAN STANDARD
prEN 12102-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2017
ICS 17.140.20; 91.140.65
English Version

Air conditioners, liquid chilling packages, heat pumps,
process chillers and dehumidifiers with electrically driven
compressors - Determination of the sound power level -
Part 2: Heat pump water heaters
Climatiseurs, groupes refroidisseurs de liquide, Klimageräte, Flüssigkeitskühlsätze, Wärmepumpen
pompes à chaleur, refroidisseurs industriels et und Entfeuchter mit elektrisch angetriebenen
déshumidificateurs avec compresseur entraîné par Verdichtern - Bestimmung des Schallleistungspegels -
moteur électrique - Détermination du niveau de Teil 2: Wassererhitzer mit Wärmepumpen
puissance acoustique - Partie 2 : Chauffe-eau à pompe à
chaleur
This draft European Standard is submitted to CEN members for second enquiry. It has been drawn up by the Technical
Committee CEN/TC 113.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12102-2:2017 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
Contents Page

European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms, definitions and symbols . 5
3.1 Terms and definitions . 5
3.2 Symbols, subscripts and units . 6
4 Acoustic characteristics . 7
5 Measurement procedure . 8
5.1 General approach . 8
5.2 Target water temperature . 8
5.3 Volumic power density (VPD) . 8
5.4 Water tank filling . 8
5.5 Water outlet temperature measurement . 9
5.6 Method for units with VPD ≤ 10 . 10
5.7 Method for units with VPD > 10 . 11
5.8 Frosting . 12
5.9 Measurement of non-acoustic parameters . 12
5.10 Volume air flow rate and available external static pressure . 12
5.11 Rotation speed . 12
6 Test conditions . 13
7 Measuring instruments . 14
8 Installation of the unit . 15
8.1 General . 15
8.2 Settings . 16
8.3 Ducted configurations . 16
8.4 Acoustic calculation. 19
9 Acoustic measurements methods . 22
9.1 General . 22
9.2 Test methods . 22
9.3 Frequency range . 23
10 Data management . 23
10.1 Test report . 23
10.2 Data to be kept in the laboratory register. 24
Annex A (informative) Typical configuration of heat pumps . 25
Annex B (normative) Measurement procedure for heat pump water heaters with a direct
heat exchanger between the sanitary cold water and the refrigerant . 28
Annex C (informative) Example of measurement process for units with VPD > 10 . 29
Annex ZA (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 814/2013 aimed to be covered . 32
Annex ZB (informative) Relationship between this European Standard and the ecodesign
requirements of Commission Regulation (EU) No 812/2013 aimed to be covered . 33
2

---------------------- Page: 4 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
European foreword
This document (prEN 12102-2:2017) has been prepared by Technical Committee CEN/TC 113 “Heat
pumps and air conditioning units”, the secretariat of which is held by AENOR.
This document is currently submitted to the second CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA or ZB, which is an integral part of this
document.
3

---------------------- Page: 5 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
1 Scope
This European Standard specifies methods for testing the sound power level of air/water, brine/water,
water/water and direct exchange/water heat pump water heaters and heat pump combination heaters
with electrically driven compressors and connected to or including a domestic hot water storage tank
for domestic hot water production.
This European Standard comprises only the testing procedure for the domestic hot water production of
the heat pump system.
NOTE 1 Testing procedures for simultaneous operation for domestic hot water production and space heating
are not treated in this standard. Simultaneous operation means that domestic hot water production and space
heating generation occur at the same time and may interact.
NOTE 2 For space heating function, the requirements are given in prEN 12102-1:2015.
This European Standard only applies to water heaters which are supplied in a package of heat pump
and storage tank. In the case of water heaters consisting of several parts with refrigerant connections,
this European Standard applies only to those designed and supplied as a complete package.
This European Standard does not specify requirements of the quality of the used water.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
prEN 12102-1:2016, Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with
electrically driven compressors - Determination of the sound power level - Part 1: Air conditioners, liquid
chilling packages, heat pumps for space heating and cooling, dehumidifiers and process chillers
EN 14511-1:2013, Air conditioners, liquid chilling packages and heat pumps with electrically driven
compressors for space heating and cooling - Part 1: Terms, definitions and classification
EN 14511-2:2013, Air conditioners, liquid chilling packages and heat pumps with electrically driven
compressors for space heating and cooling - Part 2: Test conditions
EN 14511-3:2013, Air conditioners, liquid chilling packages and heat pumps with electrically driven
compressors for space heating and cooling - Part 3: Test methods
EN 16147:2017, Heat pumps with electrically driven compressors - Testing, performance rating and
requirements for marking of domestic hot water units
EN ISO 3741:2010, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
EN ISO 3743-1, Acoustics - Determination of sound power levels and sound energy levels of noise sources
using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1:
Comparison method for a hard-walled test room (ISO 3743-1:2010)
EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
(ISO 3744:2010)
4

---------------------- Page: 6 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
EN ISO 3745:2012, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO
3745:2012)
EN ISO 3747, Acoustics - Determination of sound power levels and sound energy levels of noise sources
using sound pressure - Engineering/survey methods for use in situ in a reverberant environment (ISO
3747:2010)
EN ISO 5801, Industrial fans - Performance testing using standardized airways (ISO 5801:2007 including
Cor 1:2008)
EN ISO 9614-2, Acoustics - Determination of sound power levels of noise sources using sound intensity -
Part 2: Measurement by scanning (ISO 9614-2:1996)
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in EN ISO 3741, EN ISO 3743-1,
EN ISO 3744, EN ISO 3745, EN ISO 3747, EN ISO 9614 (all parts), EN 14511-1, EN 16147 and
EN 12102-1 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
5

---------------------- Page: 7 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
3.2 Symbols, subscripts and units
The symbols, subscripts and units are given in Table 1.
Table 1 — Symbols, subscripts and units
Symbol/Subscript Denomination Unit
B Brine —
c Speed of sound in air m/s
o
d In duct —
D Total duration of heating —
H
f Centre frequency band Hz
i Indoor side of units —
L Sound power level dB
W
L A-weighted sound power level dB(A)
WA
o Outdoor side of units —
a
P Rated heat output kW
rated
R Refrigerant —
2
S Area of the duct opening in the room m
T Dry bulb temperature °C
T Target water temperature °C
hw
T Set point temperature for production of hot water °C
set
VPD Volumic power density W/l
V Declared volume of water tank l
tank
W Sound power —
W/B Water/brine —
W Reference sound power —
0
Ω Solid of the radiation path from the test opening —
a
As given in EN 16147.
6

---------------------- Page: 8 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
4 Acoustic characteristics
Table 2 lists the relevant acoustic characteristics of typical configurations of heat pump water heaters
which are described in Annex A.
Table 2 — Acoustic characteristics of typical configurations
Heat pump
Outdoors Indoors Inlet duct Outlet duct
configuration
A1/ Ambient air ② Unit + inlet +
— — —
outlet
A2/ Ground source ② Unit + inlet +
— — —
outlet
A3/ Outdoor air ② Unit + inlet +
— — —
outlet
B/ Ambient air – ducted ⑤ Outlet
③ Unit + inlet — —
outlet opening
C/ Outdoor air ④ Openings of
Ducted inlet/outlet both inlet and ① Unit — —
outlet
D/ Exhaust air with ⑤ Outlet
① Unit ⑥ Unit inlet —
integrated fan opening
E/ Exhaust air without
— ① Unit ⑥ Unit inlet ⑦ Unit outlet
fan
F1/ Outdoor air split ② Unit + inlet + ⑧ Not to be
— —
outlet measured
F2/ Outdoor air split ② Unit + inlet + ⑧ Not to be
— —
outlet measured
G/ Ambient air split ② Unit + inlet +
① Unit — —
outlet
H/ Roll bond panel ⑧ Not to be
① Unit — —
measured
①
 noise radiated by the unit
②
 noise radiated by the unit + inlet + outlet
③
 noise radiated by the unit + inlet
④
 noise radiated by the openings of both inlet and outlet
⑤
 noise radiated by the outlet opening
⑥
 noise radiated by the unit inlet
⑦
 noise radiated by the unit outlet
⑧
 noise not to be measured
7

---------------------- Page: 9 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
5 Measurement procedure
5.1 General approach
According to the power of the unit and the volume of its tank, defined by the volumic power density
(VPD) in W/l, the heating time can dramatically change. The goal is to perform the acoustic
measurement when the water tank temperature reaches the target water temperature T , usually 45°.
hw
But this temperature shall only be measured by small draw-offs, thus preventing its continuous
monitoring.
Previous studies showed that the noise generated by units is unsteady compared to other HVAC
devices. This is why a longer sound pressure averaging of 3 min is required.
For units with low VPD, the water tank temperature increases slowly and will not dramatically change
during the time necessary to perform acoustic measurement. Fifteen minutes are given to perform this
task, allowing some time-consuming processes of the standards (e.g. increase the number of
microphone positions).
For units with higher VPD, the water tank temperature increases quickly. The sound power level shall
be continuously measured during the water tank heating, with several small draw-offs. Then the
acoustic values corresponding to the water tank temperature of T (usually 45 °C) shall be deduced
hw
from the evolution of temperature versus time.
The measurement procedure for heat pump water heaters with a direct heat exchanger between the
sanitary cold water and the refrigerant is given in Annex B.
5.2 Target water temperature
The target water temperature T is the temperature of the water in the top of the tank, at which the
hw
sound power level value has to be declared.
The target water temperature T is 45 °C for units with a set point > 50 °C, or [set point - 5] °C
hw
otherwise.
For units with VPD ≤ 10, the target water temperature T has a tolerance of ± 1K.
hw
For units with VPD > 10, the target water temperature T has no tolerance because it is a target
hw
temperature used for time calculation.
5.3 Volumic power density (VPD)
The VPD is defined in Formula (1) and expressed in W/l.
VPD = P * 1000 / V (1)
rated tank
where
V is the declared volume of water tank (litres);
tank
Prated is the declared heating capacity (kW).
The measurement procedure depends on the VPD value:
— For units with a VPD ≤ 10, see 5.6;
— For units with a VPD > 10, see 5.7.
5.4 Water tank filling
The unit being stopped, the tank shall be fully filled with water at the temperature given in Table 3.
8

---------------------- Page: 10 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
Table 3 — Initial water temperature in the water tank
VPD (W/l) T° fill in (°C)
≤ 10 T – 5 K
hw
> 10 and ≤ 40 T – 20 K
hw
> 40 T – 35 K
hw
The tank is considered to be filled at the correct temperature when the temperatures at the outlet and
inlet fulfil the relation given in Formula (2).
|T – T | < 1K (2)
outlet inlet
5.5 Water outlet temperature measurement
The water outlet temperature T is measured at the storage tank outlet by using small draw-offs of the
wo
water.
They shall be done according to the following procedure:
1) Tap water with a flow between 2,8 and 3,2 l/min during 25 to 35 s (in order to purge and to
stabilize the temperature probe),
2) Then measure the temperature during 10 s with a flow between 2,8 and 3,2 l/min. The temperature
measurement sampling shall be done with at least 1 value every 2 s. The temperature is the average
of the measurements over these 10 s.
The water temperatures are measured in the centre of the flow, as close as possible to the appliance, as
shown in Figure 1.
9

---------------------- Page: 11 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)

Key
1 temperature probe
2 draw-off
Figure 1 — Distance for the temperature measurement
The difference between lowest and highest temperature shall not exceed 0,15 K.
In order to compensate the draw-offs, the tank shall be filled with water at temperature as defined
in 5.4.
NOTE For practical reasons, it is possible to use another way to follow the water tank inner temperature. In
this case, only draw off measurements are considered.
5.6 Method for units with VPD ≤ 10
5.6.1 Heat pump operation
When the storage tank is full of water at the temperature, as defined in Table 3, the acoustic
measurement shall begin as soon as both following conditions are achieved:
— water outlet temperature T is within the target water temperature range outlet T ;
wo hw
— continuous run of the compressor for a minimum of 30 min immediately before the acoustic
measurement; otherwise, circulate a volume of V at the temperature defined in Table 3, while
tank
the unit is still running and start the measurement when the target temperature is reached.
10

---------------------- Page: 12 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
5.6.2 Acoustic measurement
The sound pressure level measurement of the unit shall start as soon as the target temperature is
reached.
To avoid a significant change of the T during measurement process, the total duration of the sound
wo
level measurement shall not be longer than 15 min.
Due to the non-steady-state operation of the heat pump water heater resulting in variability of sound
level, the averaging time shall be 3 min.
NOTE This averaging can be arranged as the average of several measurements over shorter period. For
example, a standard measurement time of 30 s will require the average of 6 acquisitions.
At the end of the acoustic measurement, the T shall be measured again for information. The acoustic
wo
measurement shall be reported with the average of the temperatures measured just before and after
the acoustic measurement.
5.7 Method for units with VPD > 10
The method consists in the several time-stamped measurements of T throughout the water tank
wo
heating and a continuous acoustic measurement when this temperature is in the vicinity of the target
temperature T .
hw
Below the target temperature T , the period of time-stamped T , expressed as temperature
hw wo
measurement period, TMP, shall be in accordance with Table 4.
Table 4 — Period of storage tank temperature measurement
T measurement period
wo
VPD
in minutes
in W/l
TMP TMP
min max
> 10 and ≤ 40 7 10
> 40 3 5
Any acoustic measurement done during a draw-off shall not be used due to the water flow noise.
The compressor shall run for at least 30 min immediately before the acoustic measurement. If this
condition cannot be satisfied, the test is immediately restarted without this requirement. The time of
compressor run before the test start shall be mentioned in the test report.
A continuous run of the compressor for a minimum of 30 min immediately should be satisfied before
the acoustic measurement. If this is not satisfied, the test shall be immediately restarted without this
requirement.
The acoustic measurement shall be done with continuous sequential acquisitions of 1 min.
From the beginning of the heating period, determine several Two according to 5.5 and to Table 4.
After the second T measurement, calculate by linear regression the estimated time at which the target
wo
T will be reached. This estimation of time is refined after each new T measurement.
hw wo
When the period between the time of the current T measurement and the theoretical time of T is
wo hw
comprised between 2 × TMP and TMP , then the acoustic measurement shall be immediately
min min
started. This requirement avoids any draw-off during the acoustic measurement.
After the estimated time of T , stop the acoustic measurement and perform another T measurement,
hw wo
which shall be between TMP and TMP after the theoretical time of T given at the last valid T
min max hw wo
measurement. If the unit stops before this time, the T shall be immediately determined.
wo
11

---------------------- Page: 13 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
The exact time corresponding to the T without tolerance is calculated by linear regression from the
hw
time-stamped T just before and after. The sound power level is determined by averaging the sound
wo
power level on three minutes:
— measurement at the exact time;
— measurement at the minute before;
— measurement at the minute after.
An example of measurement process for units with VPD > 10 is given in Annex C.
5.8 Frosting
In case of a defrosting cycle, the acoustic measurement shall start after the duration corresponding to
the defrost cycle and the first 10 min after the termination of this defrost cycle when the heat pump is
operating in the heating mode (Interval D as defined in EN 16147).
5.9 Measurement of non-acoustic parameters
The measurement of temperatures and static pressures to be reported shall start at the time of the last
draw-off before acoustic measurement and stop at the following draw-off.
5.10 Volume air flow rate and available external static pressure
5.10.1 Non-ducted units
For non-ducted units (configurations A, F, G, H), no air volume flow rate measurement is required.
5.10.2 Ducted units
The air volume flow rate shall be measured according to EN ISO 5801 or any other method to measure
the air flow with an equal of higher precision method.
The external available pressure shall be measured during the acoustic test.
If the airflow measurement does not produce any additional noise, it may be performed during the
acoustic measurement. Otherwise, the volume airflow rate shall be determined after the test for the
same external available pressure as measured during the acoustic test.
5.11 Rotation speed
For units that include one or several fans, the rotation speed of the fan(s) should be measured.
12

---------------------- Page: 14 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
6 Test conditions
Temperature conditions and electrical conditions are given in Table 5 and Table 6.
Table 5 — Temperature conditions
Heat source
Ambient
Range of ambient
Heat source
temperature
Air dry (wet)
temperature of heat
of storage
bulb Water/brine
Type of heat source
pump
tank
temperature
°C  °C °C
A1a/ Non heated space air Heat source
15(12) — 15
temperature
A1b/ Indoor air Heat source
20(15) — 20
temperature
A2/ Ground source
a
— Water — 10 / 7 From 15 to 30 20
a
— Brine — 0 / −3
A3/ Non heated space – Heat source
7(6) — 7
Outdoor air temperature
B/ Non heated space Heat source
15(12) — 15
Ambient air – ducted outlet temperature
C/ Outdoor air – ducted
7(6) — From 15 to 30 20
inlet/outlet
D/ Indoor air – Exhaust air
20(15) — From 15 to 30 20
with integrated fan
E/ Indoor air – Exhaust air
20(15) — From 15 to 30 20
without fan
F1/ and F2/ Outdoor air

split
— Outdoor unit 7(6) — — Heat source 20
temperature
— Indoor unit  — — From 15 to 30 20
G/ Ambient air split
— Outdoor unit — — Heat source 20
7(6)
temperature
— Indoor unit  — From 15 to 30 20
H/ Roll bond panel 7(6) — — 20
a
The outlet temperature shall be used by the manufacturer for setting the flow rate that is to be maintained
during the test in accordance with 8.2.3.
13

---------------------- Page: 15 ----------------------
oSIST prEN 12102-2:2018
prEN 12102-2:2017 (E)
Table 6 — Electrical conditions
Measured variable Set value
Power supply voltage Rated voltage
Power supply frequency Rated frequency
7 Measuring instruments
The instruments shall fulfil the requirements of Table 7.
Table 7 — Uncertainties of measurement for indicated values
Measured quantity Unit Uncertainty
Domestic hot water
Temperature °C ±0,2 K
Volume flow l/min ±4 %
Liquid (heat source)
Temperature (inlet/outlet) °C ±0,3 K
Brine concentration % ±4 %
Air (heat source)
Dry bulb temperature °C ±0,5 K
Wet bulb temperature °C ±0,8 K
Static pressure difference Pa ±5 Pa (ΔP ≤ 100 Pa)
±5 % (ΔP ≥ 100 Pa)
3
Air volume flow rate m /s 10
Electrical quantity
Electrical power W ±0,1 W (≤10 W)
±1 % (≥10 W)
Voltage V ±1 %
Current A ±0,5
...

SLOVENSKI STANDARD
oSIST prEN 12102-2:2016
01-december-2016
.OLPDWVNHQDSUDYHHQRWH]DWHNRþLQVNRKODMHQMHWRSORWQHþUSDONHLQ
UD]YODåHYDOQLNL]HOHNWULþQLPLNRPSUHVRUML'RORþDQMHUDYQL]YRþQHPRþLGHO
7RSORWQDþUSDOND]DJUHOQLNHYRGH
Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically
driven compressors - Determination of the sound power level - Part 2: Heat pump water
heaters
Klimageräte, Flüssigkeitskühlsätze, Wärmepumpen und Entfeuchter mit elektrisch
angetriebenen Verdichtern - Bestimmung des Schallleistungspegels - Teil 2:
Wassererhitzer mit Wärmepumpen
Climatiseurs, groupes refroidisseurs de liquide, pompes à chaleur avec compresseur
entraîné par moteur électrique - Détermination du niveau de puissance acoustique -
Partie 2 : Chauffe-eau à pompe à chaleur
Ta slovenski standard je istoveten z: prEN 12102-2
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
27.080 7RSORWQHþUSDONH Heat pumps
91.140.65 Oprema za ogrevanje vode Water heating equipment
oSIST prEN 12102-2:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 12102-2:2016

---------------------- Page: 2 ----------------------
oSIST prEN 12102-2:2016


DRAFT
EUROPEAN STANDARD
prEN 12102-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

September 2016
ICS 17.140.20; 91.140.65
English Version

Air conditioners, liquid chilling packages, heat pumps and
dehumidifiers with electrically driven compressors -
Determination of the sound power level - Part 2: Heat
pump water heaters
Climatiseurs, groupes refroidisseurs de liquide, Klimageräte, Flüssigkeitskühlsätze, Wärmepumpen
pompes à chaleur avec compresseur entraîné par und Entfeuchter mit elektrisch angetriebenen
moteur électrique - Détermination du niveau de Verdichtern - Bestimmung des Schallleistungspegels -
puissance acoustique - Partie 2 : Chauffe-eau à pompe à Teil 2: Wassererhitzer mit Wärmepumpen
chaleur
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 113.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12102-2:2016 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
3.1 General . 6
3.2 Definitions of the sound power levels . 6
4 Heat pump water heaters configurations . 7
4.1 Descriptions . 7
4.2 Acoustic characteristics . 18
5 Measurement procedure . 18
5.1 Heating factor . 18
5.2 Target water temperature . 19
5.3 Method 1 . 19
5.3.1 Tank filling . 19
5.3.2 Heat pump operation . 19
5.3.3 Water outlet temperature measurement . 19
5.3.4 Acoustic measurement . 19
5.3.5 Frosting . 20
5.4 Method 2 . 20
5.4.1 General . 20
5.4.2 Frosting . 20
5.5 Volume air flow and available pressure . 20
5.5.1 Non-ducted units . 20
5.5.2 Ducted units . 21
5.6 Rotation speed . 21
6 Test conditions . 22
7 Measuring instruments . 23
8 Installation of the unit . 24
8.1 General . 24
8.2 Settings and test conditions . 25
8.2.1 General . 25
8.2.2 Settings for non-ducted air source units . 25
8.3 Ducted configurations . 25
8.3.1 General . 25
8.3.2 Ducts with bends . 25
8.3.3 Duct construction . 26
8.3.4 Static pressure measurement . 28
8.4 Acoustic calculation. 29
8.4.1 General . 29
8.4.2 Duct end correction . 29
8.4.3 Bend correction . 30
9 Acoustic measurements methods . 31
9.1 Method selection . 31
2

---------------------- Page: 4 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
9.1.1 General . 31
9.1.2 Method 1 configuration . 31
9.1.3 Method 2 configuration . 31
9.2 Frequency range . 32
10 Data management . 32
10.1 Test report . 32
10.1.1 General . 32
10.1.2 Unit specification . 32
10.1.3 Operating conditions, installation and environmental conditions . 32
10.2 Data to be kept in the laboratory register . 33
Annex A (normative) Measurement procedure for heat pump water heaters with sanitary
cold water circulating directly through the condenser . 34
Annex ZA (informative) Relationship between this European Standard and the
requirements of Commission Regulation (EU) No 814/2013. 35
Annex ZB (informative)  Relationship between this European Standard and the
requirements of Commission Regulation (EU) No 812/2013. 36

3

---------------------- Page: 5 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
European foreword
This document (prEN 12102-2:2016) has been prepared by Technical Committee CEN/TC 113 “Heat
pumps and air conditioning units”, the secretariat of which is held by AENOR.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA and Annex ZB, which are integral parts
of this document.
4

---------------------- Page: 6 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
1 Scope
This European Standard specifies methods for testing the sound power level for water heating energy
efficiency of air/water, brine/water, water/water and direct exchange/water heat pump water heaters
and heat pump combination heaters with electrically driven compressors and connected to or including
a domestic hot water storage tank for domestic hot water production.
This European Standard comprises only the testing procedure for the domestic hot water production of
the heat pump system.
NOTE 1 Testing procedures for simultaneous operation for domestic hot water production and space heating
are not treated in this standard. Simultaneous means that domestic hot water production and space heating
generation occur at the same time and may interact.
NOTE 2 For space heating functions, the requirements are given in prEN 12102–1:2015.
This European Standard only applies to water heaters which are supplied in a package of heat pump
and storage tank. In the case of water heaters consisting of several parts with refrigerant connections,
this European Standard applies only to those designed and supplied as a complete package.
This European Standard does not specify requirements of the quality of the used water.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
prEN 14511-1:2015, Air conditioners, liquid chilling packages and heat pumps for space heating and
cooling and process chillers using electrically driven compressors — Part 1: Terms and definitions
prEN 16147:2015, Heat pumps with electrically driven compressors - Testing and requirements for
marking of domestic hot water units
EN ISO 3741:2010, Determination of sound power levels and sound energy levels of noise sources using
sound pressure - Precision methods for reverberation test rooms (ISO 3741:2010)
EN ISO 3743-1, Acoustics - Determination of sound power levels and sound energy levels of noise sources
using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1:
Comparison method for a hard-walled test room (ISO 3743-1)
EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
(ISO 3744:2010)
EN ISO 3745:2012, Acoustics - Determination of sound power levels and sound energy levels of noise
sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO
3745:2012)
EN ISO 3747, Acoustics - Determination of sound power levels and sound energy levels of noise sources
using sound pressure - Engineering/survey methods for use in situ in a reverberant environment (ISO
3747)
EN ISO 5801, Industrial fans - Performance testing using standardized airways (ISO 5801)
5

---------------------- Page: 7 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
EN ISO 9614-1, Acoustics - Determination of sound power levels of noise sources using sound intensity -
Part 1: Measurement at discrete points (ISO 9614-1)
EN ISO 9614-2, Acoustics - Determination of sound power levels of noise sources using sound intensity -
Part 2: Measurement by scanning (ISO 9614-2)
EN ISO 9614-3, Acoustics - Determination of sound power levels of noise sources using sound intensity -
Part 3: Precision method for measurement by scanning (ISO 9614-3)
3 Terms and definitions
3.1 General
For the purposes of this document, the terms and definitions given in EN ISO 3741, EN ISO 3743-1,
EN ISO 3744, EN ISO 3745, EN ISO 3747, EN ISO 9614 (all parts), EN 14511-1, EN 16147 and the
following apply.
3.1.1
L
W
required value, sound power level, defined by:
 w 
 
L =10lg (1)
w
 
w
0
 
where
w is the sound power ;
−12
w is the reference sound power = 1 pW (10 W).
0
Note 1 to entry: Expressed in dB.
3.1.2
L
WA
overall A-weighted sound power level
Note 1 to entry: Expressed in dB(A).
3.2 Definitions of the sound power levels
3.2.1
indoor
sound power level inside the room (house), where the unit with its water tank stands
3.2.2
outdoor
sound power level outside the building (radiated by the unit or the duct(s) end)
3.2.3
inlet duct sound power level
sound power level discharged into the duct at the unit inlet
3.2.4
outlet duct sound power level
sound power level discharged into the duct at the unit outlet
6

---------------------- Page: 8 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
4 Heat pump water heaters configurations
4.1 Descriptions
The common configurations of the heat-pump water heaters are described in the Figures 1 to 11, and
numbered (A – H).

Figure 1 — Ambient air (A1)
7

---------------------- Page: 9 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 2 — Ground source (A2)
8

---------------------- Page: 10 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 3 — Ambient air (A3)
9

---------------------- Page: 11 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 4 — Ambient air - ducted outlet (B)
10

---------------------- Page: 12 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 5 — Outdoor air - Ducted inlet/outlet (C)
11

---------------------- Page: 13 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 6 — Individual air exhaust (D)
12

---------------------- Page: 14 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 7 — Collective air exhaust (E)
13

---------------------- Page: 15 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 8 — Outdoor air split (F1)
14

---------------------- Page: 16 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 9 — Outdoor air split (F2)
15

---------------------- Page: 17 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Figure 10 — Indirect air (G)
16

---------------------- Page: 18 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)

Key (Figures 1 to 11)
1 Noise radiated by the unit
2 Noise radiated by the unit + inlet + outlet
3 Noise radiated by the unit + inlet
4 Noise radiated by the openings of both inlet and outlet
5 Noise radiated by the outlet opening
6 Noise radiated by the unit inlet
7 Noise radiated by the unit outlet
8 Noise not measurable
Figure 11 — Roll bond panel (H)
17

---------------------- Page: 19 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
4.2 Acoustic characteristics
The relevant acoustic characteristics of each configuration are listed in the Table 1.
Table 1 — Indoors/outdoors configurations for labelling
 Outdoors Indoors Inlet duct Outlet duct
A1/ Ambient air - ② Unit + inlet + - -
outlet
A2/ Ground
source
A3/ Ambient air ② Unit + inlet + - - -
outlet
B/ Ambient air – ⑤ Outlet opening ③ Unit + inlet - -
ducted outlet
C/ Outdoor air ④ Openings of ① Unit - -
Ducted both inlet and
inlet/outlet outlet
D/ Individual air ⑤ Outlet opening ① Unit ⑥ Unit inlet -
exhaust
E/ Collective air - ① Unit ⑥ Unit inlet ⑦ Unit outlet
exhaust
F1/ Outdoor air ② Unit + inlet + ⑧ Not - -
split outlet measurable

F2/ Outdoor air ② Unit + inlet + ⑧ Not - -
split outlet measurable
G/ Indirect air ② Unit + inlet + ① Unit - -
outlet
H/ Roll bond ⑧ Not ① Unit - -
panel measurable
5 Measurement procedure
5.1 Heating factor
The heating factor H is defined in Formula (1).
f
H = 60 *1.163 * 2 * V / (P * 1000) (2)
f tank rated
where
V is the declared volume of water tank (litres);
tank
P is the declared heating capacity (kW).
rated
The measurement procedure depends on the heating factor H , according to the P and the unit tank
f rated
size:
— If H > 15, method 1 applies;
f
— If H ≤ 15, method 2 applies.
f
18

---------------------- Page: 20 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
Two measurement procedures are described. The heating factor H is a recommendation to choose the
f
measurement procedures. Even if H is below 15, the laboratory may use method 1 if the water outlet
f
temperature does not reach more than target temperature + 2 K within maximum measurement
duration of 15 min.
5.2 Target water temperature
The target water temperature T is defined by the lowest temperature between:
hw
— 45 °C (±1°C) and
— set point - 5°C (±1 °C)
for the declared set-point without additional back-up according to installation and operating
instructions.
5.3 Method 1
5.3.1 Tank filling
The tank shall be fully filled with water temperature between 10 °C and the target water outlet
temperature minus 5 K, so that the heat pump can start in these conditions.
Once the storage tank is filled, the unit can be started.
5.3.2 Heat pump operation
The target water temperature T is measured by small draw-offs at the outlet, using the procedure
hw
described in 5.3.3.
The acoustic measurement shall be started when both conditions are achieved:
— water outlet temperature within the target water outlet T tolerances;
hw
— the unit shall continuously run a minimum of 60 min just before the acoustic measurement.
5.3.3 Water outlet temperature measurement
The water outlet temperature is measured at the unit outlet by using small draw-offs of the water.
They shall be done according to the following procedure:
1) Tap some water with a flow between 2,8 and 3,2 l/min during 25 to 35 s (in order to purge and to
stabilize the temperature probe),
2) Then measure the temperature during 10 s with a flow between 2,8 and 3,2 l/min. The temperature
is the average of the measurements over these 10 s.
The temperature measurement sampling shall be done with at least 1 value per second.
In order to compensate the draw-offs, the tank shall be filled with water at temperature as defined in
5.3.1.
5.3.4 Acoustic measurement
The sound pressure level measurement of the unit shall start as soon as the target temperature is
reached.
To avoid a significant change of the T , the total duration of the sound level measurement shall not be
hw
longer than 15 min.
19

---------------------- Page: 21 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
Due to the variability of the sound level for heat pump water heater, the minimum averaging time shall
be at least 3 min.
NOTE This averaging can be arranged as the average of several measurements over shorter period. For
example, a standard measurement time of 30 s will require 6 acquisitions.
At the end of acoustic measurement, the water outlet temperature shall be measured again for
information.
5.3.5 Frosting
In case of a defrosting cycle, a delay of 10 min shall be observed before starting acoustic measurements.
If the defrosting cycle occurs when the outlet water temperature is within the tolerance of target, it is
allowed to partially renew the tank with colder water to restart the procedure without waiting for
60 min.
After acoustic measurements, the unit shall run for at least 10 min without defrosting cycle. Otherwise,
the procedure shall be started again, renewing the tank with colder water to restart the procedure
without waiting for 60 min.
5.4 Method 2
5.4.1 General
Fill the tank with water at a temperature between 10 °C and 20 °C and start the unit for start-up
sequence according to the specifications of the manufacturer, or at least for 15 min.
Then, circulate water at temperature T = T - 1 K (±1 K) within the range given in Table 5 (T is the
wi hw wi
water temperature at the inlet of the tank).
The circulating water flow shall be at least 4 times the water tank volume per hour, to ensure at least a
full renew each 15 min. The upper limit shall be 8 times the water tank volume per hour, as long as the
noise generated by the water circulation is lower enough to avoid influence on the acoustic
measurement.
A preliminary test shall be done: first, circulate water with a water flow of 8 (±0,5) water tank volumes
per hour (l/min). Determine the sound power level generated by the circulating water, with the unit
switched off. Then run the unit, and determine its sound power level. Check that the sound power level
with unit “on” is 6 dB higher than for unit “off” for the overall dB(A) value. If not, reduce the water flow
until the criterion is fulfilled, but not lower than 4 water tank volumes per hour (l/min).
For the acoustic measurement, the background noise shall be the sound pressure level measured when
the unit is off and the water circulates.
The water temperature at the outlet T shall also be continuously measured.
wo
The compressor shall continuously run in this condition during 1 h just before acoustic measurements.
The sound power level shall then be determined, without duration restriction.
5.4.2 Frosting
In case of a defrosting cycle, a delay of 10 min shall be observed before starting acoustic measurements.
After acoustic measurements, the unit shall run for at least 10 min without defrosting cycle. Otherwise,
the procedure shall be started again, without waiting for 60 min.
5.5 Volume air flow and available pressure
5.5.1 Non-ducted units
For non-ducted units (configurations A, F, G, H), no air volume flow measurement is required.
20

---------------------- Page: 22 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
5.5.2 Ducted units
The volume air flow shall be measured according to EN ISO 5801.
As no device can be inserted into the duct(s) during the acoustic measurement of outdoor noise (④ or
⑤), the available pressure cannot be controlled during the test but this pressure shall be measured.
The air volume flow is then determined (before or after the acoustic measurement), by inserting an air
flow measuring device and using, if necessary, an additional fan to compensate the measuring device
pressure drop.
5.6 Rotation speed
For units which include one or several fans, the rotation speed of the fan(s) shall be measured.
21

---------------------- Page: 23 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
6 Test conditions
Temperature test conditions and electrical conditions shall be derived from Table 2 and Table 3.
Table 2 — Temperature test conditions
Heat source
Ambient
Range of ambient
Heat source
temperature
Air dry (wet)
Type of heat source temperature of
of storage
bulb Water/brine
heat pump (°C)
tank (°C)
temperature (°C)
A1/ Not heated space - Heat source
15(12) - 15
Ambient air heat pump temperature
A2/ Ground source   From 15 to 30 20
- Water  10 / *
- Brine  0 / *
A3/ Not heated space - Heat source
20(15) - 20
Ambient air heat pump temperature
B/ Not heated space Heat source
15(12) - 15
Ambient air ducted outlet temperature
C/ Outdoor air – ducted
7(6) - From 15 to 30 20
outlet/inlet
D/ Indoor air – Individual
20(15) - From 15 to 30 20
ventilation
E/ Indoor air – Collective
20(15) - From 15 to 30 20
ventilation
F1/ and F2/ Outdoor air

split
- Outdoor unit
- Indoor unit 7(6) - Heat source
20
temperature

- From 15 to 30 20
G/ Indirect air HPWH 7(6)
- Outdoor unit
- Indoor unit - Heat source
20
temperature

- From 15 to 30 20
H/ Roll bond panel 15(12) - - -
22

---------------------- Page: 24 ----------------------
oSIST prEN 12102-2:2016
prEN 12102-2:2016 (E)
Table 3 — Electrical conditions
Measured variable Set value
Power supply voltage
...