# C_2014207EN.01000201.xml

| 3.7.2014 | EN | Official Journal of the European Union | C 207/2 |
| --- | --- | --- | --- |

3.7.2014

EN

Official Journal of the European Union

C 207/2

---

Commission communication in the framework of the implementation of Commission Regulation (EU) No 813/2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for space heaters and combination heaters and of Commission Delegated Regulation (EU) No 811/2013 supplementing Directive 2010/30/EU of the European Parliament and of the Council with regard to the energy labelling of space heaters, combination heaters, packages of space heater, temperature control and solar device and packages of combination heater, temperature control and solar device

(2014/C 207/02)

1.   Publication of titles and references of transitional methods of measurement and calculation (1) for the implementation of Regulation (EU) No 813/2013, and in particular Annexes III and IV thereof, and for the implementation of Regulation (EU) No 811/2013, and in particular Annexes VII and VIII thereof.

1

2.   Parameters in italics are determined in Regulation (EU) No 813/2013 and in Regulation (EU) No 811/2013.

in italics

3.   References

| Parameter | Organisation | Reference/Title | Notes |
| --- | --- | --- | --- |
| Boiler space heaters and boiler combination heaters using gaseous fuel |
| η, P, design types, Pstby
  , Pign | CEN | EN 15502-1:2012 Gas-fired heating boilers - Part 1: General requirements and tests; | EN 15502-1:2012 is set to replace EN 297, EN 483, EN 677, EN 656, EN 13836, EN 15420. |
| Useful heat output at rated heat output P4
  and useful efficiency at rated heat output η4
  at 80/60 °C | CEN | § 3.1.6 Nominal output (definition, symbol Pn);
  § 3.1.5.7 Useful efficiency (definition, symbol ηu);
  § 9.2.2 (test); | All efficiency values are expressed in gross calorific value GCV. |
| Design types, definitions | CEN | § 3.1.10. Design types of boilers with definitions of ‘combination-boiler’; ‘low temperature boiler’ and ‘condensing boiler’.
  § 8.15. Formation of condensate (requirements and test); | |
| Useful heat output at 30 % of rated heat output P1
  and useful efficiency at 30 % of rated heat output η1
  at partial heat input and low temperature regime | CEN | § 3.1.5.7. Useful efficiency (definition, symbol ηu);
  § 9.3.2. Useful efficiency at part load, Tests; | 1) | tests are carried out at 30 % of nominal heat input, not at minimum steady state heat input; |

Parameter

Organisation

Reference/Title

Notes

Boiler space heaters and boiler combination heaters using gaseous fuel

Boiler space heaters and boiler combination heaters using gaseous fuel

η, P, design types, Pstby
  , Pign

η, P

Pstby

Pign

CEN

EN 15502-1:2012 Gas-fired heating boilers - Part 1: General requirements and tests;

EN 15502-1:2012 is set to replace EN 297, EN 483, EN 677, EN 656, EN 13836, EN 15420.

Useful heat output at rated heat output P4
  and useful efficiency at rated heat output η4
  at 80/60 °C

P4

η4

CEN

§ 3.1.6 Nominal output (definition, symbol Pn);

n

§ 3.1.5.7 Useful efficiency (definition, symbol ηu);

u

§ 9.2.2 (test);

All efficiency values are expressed in gross calorific value GCV.

GCV.

Design types, definitions

CEN

§ 3.1.10. Design types of boilers with definitions of ‘combination-boiler’; ‘low temperature boiler’ and ‘condensing boiler’.

§ 8.15. Formation of condensate (requirements and test);

Useful heat output at 30 % of rated heat output P1
  and useful efficiency at 30 % of rated heat output η1
  at partial heat input and low temperature regime

P1

η1

CEN

§ 3.1.5.7. Useful efficiency (definition, symbol ηu);

u

§ 9.3.2. Useful efficiency at part load, Tests;

1)

tests are carried out at 30 % of nominal heat input, not at minimum steady state heat input;

| 2) | test return temperatures are 30 °C (condensing boiler), 37 °C (low temperature boiler) or 50 °C (standard boiler).
  According to prEN 15502-1:2013,






  — | η4 is the useful efficiency at nominal heat input or for range rated boilers at the arithmetic mean of the maximum and minimum useful heat input. |
| --- | --- | --- |

2)

test return temperatures are 30 °C (condensing boiler), 37 °C (low temperature boiler) or 50 °C (standard boiler).

According to prEN 15502-1:2013,

—

η4 is the useful efficiency at nominal heat input or for range rated boilers at the arithmetic mean of the maximum and minimum useful heat input.

4

| — | η1 is the useful efficiency at 30 % of the nominal heat input or for range rated boilers at 30 % of the arithmetic mean of the maximum and minimum useful heat input. |
| --- | --- |

—

η1 is the useful efficiency at 30 % of the nominal heat input or for range rated boilers at 30 % of the arithmetic mean of the maximum and minimum useful heat input.

1

Standby heat loss Pstby

Pstby

CEN

§ 9.3.2.3.1.3 Standby losses (test);

Ignition burner power consumption Pign

Pign

CEN

§ 9.3.2 Table 6 and 7: Q3 = permanent ignition burner.

Applies to ignition burners operating at main burner-off mode.

Emission of nitrogen oxides NOX

NOX

CEN

EN 15502-1:2012.

§ 8.13. NOX (classification, test- and calculation methods)

X

NOX emission values are expressed in gross calorific value GCV.

X

GCV

Boiler space heaters and boiler combination heaters using liquid fuel

Boiler space heaters and boiler combination heaters using liquid fuel

General test conditions

EN 304:1992; A1:1998; A2:2003; Heating boilers - Test code for heating boilers for atomizing oil burners;

Section 5 (‘Tests’).

Standby heat loss Pstby

Pstby

CEN

EN 304 as above;

§ 5.7 Determination of standby loss.

Pstby
  =q × (P4/η4), with ‘q’ defined in EN 304.

Pstby

The test described in EN304 shall be done with Δ30K

Seasonal space heating energy efficiency in active mode ηson
  with test results for useful output P

ηson

P

CEN

For condensing boilers:

EN 15034:2006. Heating boilers - Condensing heating boilers for fuel oil; § 5.6 Useful efficiency.

EN 15034:2006 refers to condensing oil boilers.

For standard and low temperature boilers:

EN 304:1992; A1:1998; A2:2003; Heating boilers - Test code for heating boilers for atomizing oil burners;

Section 5 (‘Tests’).

For boilers with forced draught burner similar sections apply in EN 303-1, EN 303-2 and EN 303-4. For atmospheric, not fan-assisted burners EN 1:1998 applies.

Test conditions (power and temperature settings) for η1
  and η4
  are the same as for gas-fired boilers described above.

η1

η4

Emission of nitrogen oxides NOX

NOX

CEN

EN 267:2009+A1:2011

Automatic forced draught burners for liquid fuels;

§ 4.8.5. Emission limit values for NOX and CO;

X

§ 5. Testing. ANNEX B. Emission measurements and corrections.

NOX emission values are expressed in GCV.

X

GCV

A reference nitrogen content in the fuel of 140mg/kg shall be applied. Where another nitrogen content is measured, with the exemption of Kerosene oil only, the following correction equation shall apply:

Formula

NOX(EN 267) is the value of NOX corrected to the reference conditions of nitrogen of the fuel oil chosen at 140 mg/kg;

X(EN 267)

X

NOXref is the measured value of NOX according to B.2;

Xref

X

Nmeas is the value of the nitrogen content of the fuel oil measured in mg/kg;

meas

Nref = 140 mg/kg.

ref

For rating that the requirements of the standard are fulfilled the value of NO X(EN 267) shall apply.

X(EN 267)

Electric boiler space heaters and electric boiler combination heaters

Electric boiler space heaters and electric boiler combination heaters

Seasonal space heating energy efficiency ηs
  of electric boiler space heaters and electric boiler combination heaters

ηs

European Commission

Point 4 of this Communication

Additional elements for measurements and calculations related to the seasonal space heating energy efficiency of boiler space heaters, boiler combination heaters and cogeneration space heaters.

Cogeneration space heaters

Cogeneration space heaters

Useful heat output at rated heat output of cogeneration space heater with supplementary heater disabled PCHP100+Sup0, useful heat output at rated heat output of cogeneration space heater with supplementary heater enabled PCHP100+Sup100,

PCHP100+Sup0

PCHP100+Sup100,

Useful efficiency at rated heat output of cogeneration space heater with supplementary heater disabled ηCHP100+Sup0, Useful efficiency at rated heat output of cogeneration space heater with supplementary heater enabled ηCHP100+Sup100,

ηCHP100+Sup0

ηCHP100+Sup100,

Electrical efficiency at rated heat output of cogeneration space heater with supplementary heater disabled ηel,CHP100+Sup0
  , Electrical efficiency at rated heat output of cogeneration space heater with supplementary heater enabled ηel,CHP100+Sup100

ηel,CHP100+Sup0

ηel,CHP100+Sup100

CEN

FprEN 50465:2013

Gas appliances – Combined Heat and Power appliance of nominal heat input inferior or equal to 70 kW.

Heat outputs:

6.3 Heat input and heat and electrical output; 7.3.1 and 7.6.1;

Efficiencies:

7.6.1 Efficiency (Hi) and 7.6.2.1. Efficiency – Seasonal space heating energy efficiency – conversion to gross calorific efficiency.

Hi

PCHP100+Sup0
  corresponds to

PCHP100+Sup0

QCHP_100+Sup_0
  × ηth,CHP_100+Sup_0

QCHP_100+Sup_0

ηth,CHP_100+Sup_0

in FprEN 50465:2013

PCHP100+Sup100
  corresponds to

PCHP100+Sup100

QCHP_100+Sup_100
  × ηth,CHP_100+Sup_100

QCHP_100+Sup_100

ηth,CHP_100+Sup_100

in FprEN 50465:2013

ηCHP100+Sup0
  corresponds to ηHs,th, CHP_100+Sup_0

ηCHP100+Sup0

ηHs,th, CHP_100+Sup_0

in FprEN 50465:2013

ηCHP100+Sup100
  corresponds to ηHs,th,CHP_100+Sup_100

ηCHP100+Sup100

ηHs,th,CHP_100+Sup_100

in FprEN 50465:2013

ηel,CHP100+Sup0
  corresponds to ηHs,el,CHP_100+Sup_0

ηel,CHP100+Sup0

ηHs,el,CHP_100+Sup_0

in FprEN 50465:2013

ηel,CHP100+Sup100
  corresponds to ηHs,el,CHP_100+Sup_100

ηel,CHP100+Sup100

ηHs,el,CHP_100+Sup_100

in FprEN 50465:2013

FprEN 50465 is the reference only for the calculation of PCHP100+Sup0
  , PCHP100+Sup100
  , ηCHP100+Sup0
  , ηCHP100+Sup100
  , ηel,CHP100+Sup0
  , ηel,CHP100+Sup100
  .

PCHP100+Sup0

PCHP100+Sup100

ηCHP100+Sup0

ηCHP100+Sup100

ηel,CHP100+Sup0

ηel,CHP100+Sup100

For the calculation of ηs
  and ηson
  of cogeneration space heaters the methodology described in this Communication shall be used.

ηs

ηson

Pstby
  , Pign

Pstby

Pign

CEN

FprEN 50465:2013

Gas appliances – Combined Heat and Power appliance of nominal heat input inferior or equal to 70 kW.

Standby heat loss Pstby

Pstby

CEN

§ 7.6.4 Stand-by losses Pstby
  ;

Pstby

Ignition burner power consumption Pign

Pign

CEN

§ 7.6.5 Permanent ignition burner heat input Qpilot

pilot

Pign
  corresponds to Qpilot
  in FprEN 50465:2013

Pign

Qpilot

Emission of nitrogen oxides NOX

NOX

CEN

FprEN 50465:2013

§ 7.8.2 NOX (Other pollutants)

X

NOX emission values shall be measured in mg/kWh fuel input and expressed in gross calorific value GCV. The electrical energy generated during the test, shall not be considered in the calculation of NOX emission.

X

X

Boiler space heaters, boiler combination heaters and cogeneration space heaters

Boiler space heaters, boiler combination heaters and cogeneration space heaters

Auxiliary electricity consumption at full load elmax, at part load elmin and in standby mode PSB

elmax

elmin

PSB

CEN

EN 15456:2008: Heating boilers - Electrical power consumption for heat.

EN 15502:2012 for gas boilers.

FprEN 50465:2013

For cogeneration space heaters

§ 7.6.3 Electric auxiliary energy consumption for ErP

Measurement without circulator (pump).

elmax corresponds to Pelmax
  in FprEN 50465:2013

elmax

Pelmax

elmin corresponds to Pelmin
  in FprEN 50465:2013

elmin

Pelmin

In the determination of elmax, elmin and PSB
  , the electric auxiliary energy consumed by the primary heat generator shall be included.

elmax

elmin

PSB

Sound power level LWA

LWA

CEN

For sound power level, indoor measured:

EN 15036 - 1: Heating boilers - Test regulations for airborne noise emissions from heat generators - Part 1: Airborne noise emissions from heat generators.

For the acoustics, EN 15036 - 1 is referring to ISO 3743-1 Acoustics - Determination of sound power levels of noise sources - Engineering methods for small, movable sources in reverberant fields - Part 1: Comparison method for hard-walled test rooms, as well as to other allowable methods, each with their own accuracies.

Seasonal space heating energy efficiency ηs
  of boiler space heaters, boiler combination heaters and cogeneration space heaters

ηs

European Commission

Point 4 of this Communication.

Additional elements for measurements and calculations related to the seasonal space heating energy efficiency of boiler space heaters, boiler combination heaters and cogeneration space heaters.

Heat pump space heaters and heat pump combination heaters

Heat pump space heaters and heat pump combination heaters

Testing methods, vapour compression electrically driven heat pumps

CEN

EN 14825:2013

Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling – Testing and rating at part load conditions and calculation of seasonal performance;

Section 8: Test methods for testing capacities, EERbin(Tj) and COPbin(Tj) values during active mode at part load conditions

Section 9: Test methods for electric power consumption during thermostat off mode, standby mode and crankcase heater mode

Testing methods, vapor compression liquid or gaseous fuel engine driven heat pumps

CEN

EN 14825:2013

Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling – Testing and rating at part load conditions and calculation of seasonal performance;

Section 8: Test methods for testing capacities EERbin(Tj) and COPbin(Tj) values during active mode at part load conditions;

Section 9: Test methods for electric power consumption during thermostat off mode, standby mode and crankcase heater mode.

Until publication of a new European Standard. A working document is in progress within the CEN/TC299 WG3 experts group

Testing methods, liquid or gaseous fuel sorption heat pumps

CEN

prEN 12309-4:2013

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70kW – Test methods

Vapor compression electrically or liquid or gaseous fuel engine driven heat pumps.

Test conditions for air-to-water, brine-to-water and water-to-water units for medium temperature application for average, warmer and colder climate conditions for calculation of seasonal coefficient of performance SCOP for electrically driven heat pumps and seasonal primary energy ratio SPER for liquid or gaseous fuel engine driven heat pumps.

SCOP

SPER

CEN

EN 14825:2013

Section 5.4.4, Tables 18,19 and 20 (air-to-water);

Section 5.5.4, Tables 30,31 and 32 (brine-to-water, water-to-water);

Where the outlet temperatures set out in column ‘variable outlet’ are to be applied for heat pumps that control the outlet (flow) water temperature according to the heat demand. For heat pumps that do not control the outlet (flow) water temperature according to the heat demand but have a fixed outlet temperature, outlet temperature should be set according to the ‘fixed outlet’.

For liquid or gaseous fuel engine driven heat pumps EN 14825:2013 applies until publication of a new European Standard.

Medium temperature corresponds to high temperature in EN 14825:2013.

Tests are done according to EN 14825:2013, section 8:

For fixed capacity units, tests are applied as indicated in EN 14825:2013, section 8.4. Either the outlet temperatures during the tests are the ones to obtain the average outlet temperatures corresponding to the declaration points in EN 14825:2013 OR this data should be obtained by linear interpolation / extrapolation from the test points in EN 14511-2:2013, complemented with test at other outlet temperatures when necessary.

For variable capacity units, EN 14825:2013 section 8.5.2 are applied. Either the conditions during the tests are the same as for the declaration points specified in that standard OR tests can be performed at other outlet temperatures and part load conditions and the results linearly interpolated, extrapolated, to determine the data for the declaration points in EN 14825:2013.

Apart from test conditions A to F, ‘in case the TOL is below – 20 °C, an additional calculation point has to be taken from the capacity and COP at – 15 °C conditions’ (cit. EN 14825:2013 § 7.4). For the purpose of this communication, this point will be called ‘G’.

Liquid or gaseous fuel sorption heat pumps

Test conditions for air-to water, brine-to-water and water-to-water units for medium temperature application for average, warmer and colder climate conditions for calculation of seasonal primary energy ratio SPER

CEN

prEN 12309-3:2012

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70kW – Part 3: Test conditions.

Section 4.2 Tables 5 and 6.

Medium temperature corresponds to high temperature in prEN 12309-3:2012

Vapor compression electrically ord liquid or gaseous fuel engine driven heat pumps.

Test conditions for air-to-water, brine-to-water and water-to-water units under low temperature application for average, warmer and colder climate conditions for calculation of seasonal coefficient of performance SCOP for electrically driven heat pumps and seasonal primary energy ratio SPER for liquid or gaseous fuel engine driven heat pumps.

SCOP

SPER

CEN

EN 14825:2013;

Section 5.4.2, Tables 11,12 and 13 (air-to-water);

Section 5.5.2, Tables 24,25 and 26 (brine-to-water, water-to-water);

Where the outlet temperatures set out in column ‘variable outlet’ are to be applied for heat pumps that control the outlet (flow) water temperature according to the heat demand. For heat pumps that do not control the outlet (flow) water temperature according to the heat demand but have a fixed outlet temperature, outlet temperature should be set according to the ‘fixed outlet’.

Same notes as for average climate and medium temperature application, except ‘Medium temperature corresponds to high temperature in EN 14825:2013’.

Liquid or gaseous fuel sorption heat pumps

Test conditions for air-to water, brine-to-water and water-to-water units for low temperature application for average, warmer and colder climate conditions for calculation of seasonal primary energy ratio SPER

CEN

prEN 12309-3:2012

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70kW – Part 3: Test conditions.

Section 4.2 Tables 5 and 6.

Vapor compression electrically driven heat pump

Calculation of seasonal coefficient of performance SCOP

CEN

EN 14825:2013

Air conditioners, liquid chilling packages and heat pumps, with electrically driven compressors, for space heating and cooling – Testing and rating at part load conditions and calculation of seasonal performance;

Section 7: Calculation methods for reference SCOP, reference SCOPon and reference SCOPnet.

on

net

Vapor compression liquid or gaseous fuel engine driven heat pump.

Calculation of seasonal primary energy ratio SPER

SPER

CEN

New European Standards under development

The SPER formulae will be established in analogy to the SCOP formulae for vapor compression electrically driven heat pumps: COP, SCOPnet
  , SCOPon
  and SCOP will be replaced by GUEGCV
  , PER, SPERnet
  , SPERon
  and SPER.

COP

SCOPnet

SCOPon

SCOP

GUEGCV

PER

SPERnet

SPERon

SPER

Liquid or gaseous fuel sorption heat pumps

Calculation of seasonal primary energy ratio SPER

SPER

CEN

prEN12309-6:2012

Gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70kW – Part 6: Calculation of seasonal performances

SPER corresponds to SPERh in prEN12309-6:2012

SPER

h

Seasonal space heating energy efficiency ηs
  of heat pump space heaters and heat pump combination heaters

ηs

European Commission

Point 5 of this Communication

Additional elements for calculations related to the seasonal space heating energy efficiency of heat pump space heaters and heat pump combination heaters.

Vapour compression liquid or gaseous fuel engine driven heat pumps,

Emission of nitrogen oxides NOX

NOX

CEN

New European Standard under development within the CEN/TC299 WG3 experts group

For variable capacity unit only, NOX emissions shall be measured at standard rating conditions as defined in table 3 Annex III of Commission Regulation 813/2013, using ‘Engine rpm equivalent (Erpmequivalent)’.

X

equivalent

Erpmequivalen shall be calculated as follow:

equivalen

Erpmequivalent = X1 × Fp1 + X2 × Fp2 + X3 × Fp3 + X4 × Fp4

equivalent

1

p1

2

p2

3

p3

4

p4

XI = Engine rpm at 70 %, 60 %, 40 %, 20 % of the nominal heat input, respectively.

I

X1, X2, X3, X4 = Engine rpm respectively at 70 %, 60 %, 40 %, 20 % of the nominal heat input.

1

2

3

4

Fpi = weighting factors as defined in EN15502-1:2012, section 8.13.2.2

pi

If Xi is less than the minimum Engine rpm (Emin) of the equipment, XI = Xmin

i

min

I

min

Liquid or gaseous fuel sorption heat pumps

Emission of nitrogen oxides NOX

NOX

CEN

New European Standard under development within the CEN/TC299 WG2 experts group

prEN 12309-2:2013

Section 7.3.13 ‘NOX Measurements’

X

NOX emission values shall be measured in mg/kWh fuel input and expressed in gross calorific value GCV.

X

No alternative methods to express NOX in mg/kWh output shall be used.

X

Sound power level (LWA
  ) of heat pump space heaters and heat pump combination heaters

LWA

CEN

For sound power level indoor measured and outdoor measured:

EN 12102:2013 Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically driven compressors for space heating and cooling - Measurement of airborne noise - Determination of the sound power

To be used also for liquid or gaseous fuel sorption heat pumps

Temperature controls

Temperature controls

Definition of temperature controls classes, contribution of temperature controls to seasonal space heating energy efficiency ηs
  of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device

ηs

European Commission

Point 6 of this Communication

Additional elements for calculations related to the contribution of temperature controls to the seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device.

Combination heaters

Combination heaters

Water heating energy efficiency ηwh
  of combination water heaters, Qelec
  and Qfuel

ηwh

Qelec

Qfuel

European Commission

Commission Regulation No 814/2013, Annex IV §3.a

Communication 2014/C 207/03 in the framework of the implementation of Commission Regulation No 814/2013 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for water heaters and hot water storage tanks, and of the implementation of Commission Delegate Regulation (EU) No 812/2013 implementing Directive 2010/30/EU of the European Parliament and of the Council with regards to energy labelling of water heaters, hot water storage tanks and packages of water heater and solar device.

For the measurement and calculation of Qfuel
  and Qelec
  refer to Communication 2014/C 207/03 for the same water heater type and energy source(s)

Qfuel

Qelec

4.   Additional elements for measurements and calculations related to the seasonal space heating energy efficiency of boiler space heaters, boiler combination heaters and cogeneration space heaters

4.1.   Test points

boiler space heaters and boiler combination heaters: the useful efficiency values η4
  , η1
  and the useful heat output values P4
  , P1
  are measured;

η4

η1

P4

P1

cogeneration space heaters:

| — | cogeneration space heaters not equipped with supplementary heaters: the useful efficiency value ηCHP100+Sup0
  , the useful heat output value PCHP100+Sup0
  and the electrical efficiency value ηel,CHP100+Sup0
  is measured; |
| --- | --- |

—

cogeneration space heaters not equipped with supplementary heaters: the useful efficiency value ηCHP100+Sup0
  , the useful heat output value PCHP100+Sup0
  and the electrical efficiency value ηel,CHP100+Sup0
  is measured;

ηCHP100+Sup0

PCHP100+Sup0

ηel,CHP100+Sup0

| — | cogeneration space heaters equipped with supplementary heaters: the useful efficiency values ηCHP100+Sup0
  , ηCHP100+Sup100
  , the useful heat output values PCHP100+Sup0
  , PCHP100+Sup100
  and the electrical efficiency values ηel,CHP100+Sup0
  , ηel,CHP100+Sup100
  are measured. |
| --- | --- |

—

cogeneration space heaters equipped with supplementary heaters: the useful efficiency values ηCHP100+Sup0
  , ηCHP100+Sup100
  , the useful heat output values PCHP100+Sup0
  , PCHP100+Sup100
  and the electrical efficiency values ηel,CHP100+Sup0
  , ηel,CHP100+Sup100
  are measured.

ηCHP100+Sup0

ηCHP100+Sup100

PCHP100+Sup0

PCHP100+Sup100

ηel,CHP100+Sup0

ηel,CHP100+Sup100

4.2.   Calculation of the seasonal space heating energy efficiency

The seasonal space heating energy efficiency ηs
  is defined as

ηs

Formula

Where:

ηson


  is the seasonal space heating energy efficiency in active mode, calculated according to point 4.3 and expressed in %;

ηson

F(i) are corrections calculated according to point 4.4 and expressed in %.

4.3.   Calculation of the seasonal space heating energy efficiency in active mode

The seasonal space heating energy efficiency in active mode ηson
  is calculated as follows:

ηson

| (a) | for fuel boiler space heaters and fuel boiler combination heaters:

  ηson
  = 0,85 × η1
  - 0,15 × η4 |
| --- | --- |

(a)

for fuel boiler space heaters and fuel boiler combination heaters:

ηson
  = 0,85 × η1
  - 0,15 × η4

ηson

η1

η4

| (b) | for electric boiler space heaters and electric boiler combination heaters:

  ηson
  = η4


  Where:

  η4
  = P4
  / (EC × CC), with
  EC = electricity consumption to produce useful heat output P4 |
| --- | --- |

(b)

for electric boiler space heaters and electric boiler combination heaters:

ηson
  = η4

ηson

η4

Where:

η4
  = P4
  / (EC × CC), with

η4

P4

CC

EC = electricity consumption to produce useful heat output P4

P4

| (c) | for cogeneration space heaters not equipped with supplementary heaters:

  ηson
  = ηCHP100+Sup0 |
| --- | --- |

(c)

for cogeneration space heaters not equipped with supplementary heaters:

ηson
  = ηCHP100+Sup0

ηson

ηCHP100+Sup0

| (d) | for cogeneration space heaters equipped with supplementary heaters:

  ηson
  = 0,85 × ηCHP100+Sup0
  - 0,15 × ηCHP100+Sup100 |
| --- | --- |

(d)

for cogeneration space heaters equipped with supplementary heaters:

ηson
  = 0,85 × ηCHP100+Sup0
  - 0,15 × ηCHP100+Sup100

ηson

ηCHP100+Sup0

ηCHP100+Sup100

4.4.   Calculation of F(i)

| (a) | The correction F(1) accounts for a negative contribution to the seasonal space heating energy efficiency of heaters due to adjusted contributions of temperature controls to seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device, as set out in point 6.2. For boiler space heaters, boiler combination heaters and cogeneration space heaters, the correction is F(1) = 3 %. |
| --- | --- |

(a)

The correction F(1) accounts for a negative contribution to the seasonal space heating energy efficiency of heaters due to adjusted contributions of temperature controls to seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device, as set out in point 6.2. For boiler space heaters, boiler combination heaters and cogeneration space heaters, the correction is F(1) = 3 %.

| (b) | The correction F(2) accounts for a negative contribution to the seasonal space heating energy efficiency by auxiliary electricity consumption, expressed in %, and is given as follows:






  — | for fuel boiler space heaters and fuel boiler combination heaters:
  F(2) = 2,5 × (0,15 × elmax + 0,85 × elmin + 1,3 × PSB
  ) / (0,15 × P4
  - 0,85 × P1
  ) |
| --- | --- | --- |

(b)

The correction F(2) accounts for a negative contribution to the seasonal space heating energy efficiency by auxiliary electricity consumption, expressed in %, and is given as follows:

—

for fuel boiler space heaters and fuel boiler combination heaters:

F(2) = 2,5 × (0,15 × elmax + 0,85 × elmin + 1,3 × PSB
  ) / (0,15 × P4
  - 0,85 × P1
  )

elmax

elmin

PSB

P4

P1

| — | for electric boiler space heaters and electric boiler combination heaters:
  F(2) = 1,3 × PSB
  / (P4
  × CC) |
| --- | --- |

—

for electric boiler space heaters and electric boiler combination heaters:

F(2) = 1,3 × PSB
  / (P4
  × CC)

PSB

P4

CC

| — | for cogeneration space heaters not equipped with supplementary heaters:
  F(2) = 2,5 × (elmax + 1,3 × P
  SB) / PCHP100+Sup0 |
| --- | --- |

—

for cogeneration space heaters not equipped with supplementary heaters:

F(2) = 2,5 × (elmax + 1,3 × P
  SB) / PCHP100+Sup0

elmax

P

SB

PCHP100+Sup0

| — | for cogeneration space heaters equipped with supplementary heaters:
  F(2) = 2,5 × (0,15 × elmax + 0,85 × elmin + 1,3 × PSB
  ) / (0,15 × PCHP100+Sup100
  - 0,85 × PCHP100+Sup0
  ) |
| --- | --- |

—

for cogeneration space heaters equipped with supplementary heaters:

F(2) = 2,5 × (0,15 × elmax + 0,85 × elmin + 1,3 × PSB
  ) / (0,15 × PCHP100+Sup100
  - 0,85 × PCHP100+Sup0
  )

elmax

elmin

PSB

PCHP100+Sup100

PCHP100+Sup0

OR a default value as set out in EN 15316-4-1 may be applied.

| (c) | The correction F(3) accounts for a negative contribution to the seasonal space heating energy efficiency by standby heat loss and is given as follows:






  — | for fuel boiler space heaters and fuel boiler combination heaters:
  F(3) = 0,5 × Pstby
  / P4 |
| --- | --- | --- |

(c)

The correction F(3) accounts for a negative contribution to the seasonal space heating energy efficiency by standby heat loss and is given as follows:

—

for fuel boiler space heaters and fuel boiler combination heaters:

F(3) = 0,5 × Pstby
  / P4

Pstby

P4

| — | for electric boiler space heaters and electric boiler combination heaters:
  F(3) = 0,5 × Pstby
  / (P4
  × CC) |
| --- | --- |

—

for electric boiler space heaters and electric boiler combination heaters:

F(3) = 0,5 × Pstby
  / (P4
  × CC)

Pstby

P4

CC

| — | for cogeneration space heaters not equipped with supplementary heaters:
  F(3) = 0,5 × Pstby
  / PCHP100+Sup0 |
| --- | --- |

—

for cogeneration space heaters not equipped with supplementary heaters:

F(3) = 0,5 × Pstby
  / PCHP100+Sup0

Pstby

PCHP100+Sup0

| — | for cogeneration space heaters equipped with supplementary heaters:
  F(3) = 0,5 × Pstby
  / PCHP100+Sup100 |
| --- | --- |

—

for cogeneration space heaters equipped with supplementary heaters:

F(3) = 0,5 × Pstby
  / PCHP100+Sup100

Pstby

PCHP100+Sup100

OR a default value as set out in EN 15316-4-1 may be applied.

| (d) | The correction F(4) accounts for a negative contribution to the seasonal space heating energy efficiency by ignition burner power consumption and is given as follows:






  — | for fuel boiler space heaters and fuel boiler combination heaters:
  F(4) = 1,3 × Pign
  / P4 |
| --- | --- | --- |

(d)

The correction F(4) accounts for a negative contribution to the seasonal space heating energy efficiency by ignition burner power consumption and is given as follows:

—

for fuel boiler space heaters and fuel boiler combination heaters:

F(4) = 1,3 × Pign
  / P4

Pign

P4

| — | for cogeneration space heaters not equipped with supplementary heaters:
  F(4) = 1,3 × Pign
  / PCHP100+Sup0 |
| --- | --- |

—

for cogeneration space heaters not equipped with supplementary heaters:

F(4) = 1,3 × Pign
  / PCHP100+Sup0

Pign

PCHP100+Sup0

| — | for cogeneration space heaters equipped with supplementary heaters:
  F(4) = 1,3 × Pign
  / PCHP100+Sup100 |
| --- | --- |

—

for cogeneration space heaters equipped with supplementary heaters:

F(4) = 1,3 × Pign
  / PCHP100+Sup100

Pign

PCHP100+Sup100

| (e) | For cogeneration space heaters, the correction F(5) accounts for a positive contribution to the seasonal space heating energy efficiency by the electrical efficiency and is given as follows:






  — | for cogeneration space heaters not equipped with supplementary heaters:
  F(5) = - 2,5 × ηel,CHP100+Sup0 |
| --- | --- | --- |

(e)

For cogeneration space heaters, the correction F(5) accounts for a positive contribution to the seasonal space heating energy efficiency by the electrical efficiency and is given as follows:

—

for cogeneration space heaters not equipped with supplementary heaters:

F(5) = - 2,5 × ηel,CHP100+Sup0

ηel,CHP100+Sup0

| — | for cogeneration space heaters equipped with supplementary heaters:
  F(5) = - 2,5 × (0,85 × ηel,CHP100+Sup0
  - 0,15 × ηel,CHP100+Sup100
  ) |
| --- | --- |

—

for cogeneration space heaters equipped with supplementary heaters:

F(5) = - 2,5 × (0,85 × ηel,CHP100+Sup0
  - 0,15 × ηel,CHP100+Sup100
  )

ηel,CHP100+Sup0

ηel,CHP100+Sup100

5.   Additional elements for calculations related to the seasonal space heating energy efficiency of heat pump space heaters and heat pump combination heaters

5.1.   Calculation of the seasonal space heating energy efficiency

The seasonal space heating energy efficiency ηs
  is defined as

ηs

| (a) | for heat pump space heaters and heat pump combination heaters using electricity:

  ηs
  = (100/CC) × SCOP - ΣF(i) |
| --- | --- |

(a)

for heat pump space heaters and heat pump combination heaters using electricity:

ηs
  = (100/CC) × SCOP - ΣF(i)

ηs

CC

SCOP

| (b) | for heat pump space heaters and heat pump combination heaters using fuels:

  ηs
  = SPER - ΣF(i) |
| --- | --- |

(b)

for heat pump space heaters and heat pump combination heaters using fuels:

ηs
  = SPER - ΣF(i)

ηs

SPER

F(i) are corrections calculated according to point 5.2 and expressed in %. SCOP and SPER shall be calculated according to the tables in 5.3, and are expressed in %.

5.2.   Calculation of F(i)

| (a) | The correction F(1) accounts for a negative contribution to the seasonal space heating energy efficiency of heaters due to adjusted contributions of temperature controls to seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device, as set out in point 6.2. For heat pump space heaters and heat pump combination heaters, the correction is F(1) = 3 %. |
| --- | --- |

(a)

The correction F(1) accounts for a negative contribution to the seasonal space heating energy efficiency of heaters due to adjusted contributions of temperature controls to seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device, as set out in point 6.2. For heat pump space heaters and heat pump combination heaters, the correction is F(1) = 3 %.

| (b) | The correction F(2) accounts for a negative contribution to the seasonal space heating energy efficiency by electricity consumption of ground water pump(s) expressed in %. For water-/brine-to-water heat pump space heaters and heat pump combination heaters, the correction is F(2) = 5 %. |
| --- | --- |

(b)

The correction F(2) accounts for a negative contribution to the seasonal space heating energy efficiency by electricity consumption of ground water pump(s) expressed in %. For water-/brine-to-water heat pump space heaters and heat pump combination heaters, the correction is F(2) = 5 %.

5.3   Hours for the calculation of SCOP or SPER

For the calculation of SCOP or SPER the following reference number of hours that the units work in active mode, thermostat off mode, standby mode, off more and crankcase heater mode shall be used:

Table 1

Table 1

Number of hours used for heating only

Number of hours used for heating only

| | on mode | thermostat-off mode | standby mode | Off mode | crankcase heater mode |
| --- | --- | --- | --- | --- | --- |
| | HHE | HTO | HSB | HOFF | HCK |
| Average climate (h/y) | 2 066 | 178 | 0 | 3 672 | 3 850 |
| Warmer climate (h/y) | 1 336 | 754 | 0 | 4 416 | 5 170 |
| Colder climate (h/y) | 2 465 | 106 | 0 | 2 208 | 2 314 |

on mode

thermostat-off mode

standby mode

Off mode

crankcase heater mode

HHE

HHE

HTO

HTO

HSB

HSB

HOFF

HOFF

HCK

HCK

Average climate (h/y)

Average climate (h/y)

2 066

178

0

3 672

3 850

Warmer climate (h/y)

Warmer climate (h/y)

1 336

754

0

4 416

5 170

Colder climate (h/y)

Colder climate (h/y)

2 465

106

0

2 208

2 314

Table 2

Table 2

Number of hours used for reversible heat pumps

Number of hours used for reversible heat pumps

| | on mode | thermostat-off mode | standby mode | Off mode | crankcase heater mode |
| --- | --- | --- | --- | --- | --- |
| | HHE | HTO | HSB | HOFF | HCK |
| Average climate (h/y) | 2 066 | 178 | 0 | 0 | 178 |
| Warmer climate (h/y) | 1 336 | 754 | 0 | 0 | 754 |
| Colder climate (h/y) | 2 465 | 106 | 0 | 0 | 106 |

on mode

thermostat-off mode

standby mode

Off mode

crankcase heater mode

HHE

HHE

HTO

HTO

HSB

HSB

HOFF

HOFF

HCK

HCK

Average climate (h/y)

Average climate (h/y)

2 066

178

0

0

178

Warmer climate (h/y)

Warmer climate (h/y)

1 336

754

0

0

754

Colder climate (h/y)

Colder climate (h/y)

2 465

106

0

0

106

HHE
  , HTO
  , HSB
  , HCK
  , HOFF

  = Number of hours the unit is considered to work in respectively, active mode, thermostat off mode, standby mode, crankcase heater mode and off mode.

HHE

HTO

HSB

HCK

HOFF

6.   Additional elements for calculations related to the contribution of temperature controls to the seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device

6.1.   Definitions

In addition to the definitions set out in Commission Regulation (EU) No 813/2013, and Commission Delegated Regulation (EU) No 811/2013, the following definitions apply:

| — | ‘modulating heater’ means a heater with the capability of vary power output whilst maintaining continuous operation; |
| --- | --- |

—

‘modulating heater’ means a heater with the capability of vary power output whilst maintaining continuous operation;

Definition of temperature controls classes

—   Class I - On/off Room Thermostat: A room thermostat that controls the on/off operation of a heater. Performance parameters, including switching differential and room temperature control accuracy are determined by the thermostat's mechanical construction.

Class I - On/off Room Thermostat

—   Class II - Weather compensator control, for use with modulating heaters: A heater flow temperature control that varies the set point of the flow temperature of water leaving the heater dependant upon prevailing outside temperature and selected weather compensation curve. Control is achieved by modulating the output of the heater.

Class II - Weather compensator control, for use with modulating heaters

—   Class III - Weather compensator control, for use with on/off output heaters: A heater flow temperature control that varies the set point of the flow temperature of water leaving the heater dependant upon prevailing outside temperature and selected weather compensation curve. Heater flow temperature is varied by controlling the on/off operation of the heater.

Class III - Weather compensator control, for use with on/off output heaters

—   Class IV - TPI room thermostat, for use with on/off output heaters: An electronic room thermostat that controls both thermostat cycle rate and in-cycle on/off ratio of the heater proportional to room temperature. TPI control strategy reduces mean water temperature, improves room temperature control accuracy and enhances system efficiency.

Class IV - TPI room thermostat, for use with on/off output heaters

—   Class V - Modulating room thermostat, for use with modulating heaters: An electronic room thermostat that varies the flow temperature of the water leaving the heater dependant upon measured room temperature deviation from room thermostat set point. Control is achieved by modulating the output of the heater.

Class V - Modulating room thermostat, for use with modulating heaters

—   Class VI - Weather compensator and room sensor, for use with modulating heaters: A heater flow temperature control that varies the flow temperature of water leaving the heater dependant upon prevailing outside temperature and selected weather compensation curve. A room temperature sensor monitors room temperature and adjusts the compensation curve parallel displacement to improve room comfort. Control is achieved by modulating the output of the heater.

Class VI - Weather compensator and room sensor, for use with modulating heaters

—   Class VII - Weather compensator and room sensor, for use with on/off output heaters: A heater flow temperature control that varies the flow temperature of water leaving the heater dependant upon prevailing outside temperature and selected weather compensation curve. A room temperature sensor monitors room temperature and adjusts the compensation curve parallel displacement to improve room comfort. Heater flow temperature is varied by controlling the on/off operation of the heater.

Class VII - Weather compensator and room sensor, for use with on/off output heaters

—   Class VIII - Multi-sensor room temperature control, for use with modulating heaters: An electronic control, equipped with 3 or more room sensors that varies the flow temperature of the water leaving the heater dependant upon the aggregated measured room temperature deviation from room sensor set points. Control is achieved by modulating the output of the heater.

Class VIII - Multi-sensor room temperature control, for use with modulating heaters

6.2.   Contribution of temperature controls to seasonal space heating energy efficiency of packages of space heater, temperature control and solar device or of packages of combination heater, temperature control and solar device

| Class No. | I | II | III | IV | V | VI | VII | VIII |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Value in % | 1 | 2 | 1,5 | 2 | 3 | 4 | 3,5 | 5 |

Class No.

I

II

III

IV

V

VI

VII

VIII

Value in %

1

2

1,5

2

3

4

3,5

5

7.   Energy inputs

Definitions

| — | ‘uncertainty of measurement (accuracy)’ is the precision with which an instrument or a chain of instruments is capable to represent an actual value as established by a highly-calibrated measurement reference; |
| --- | --- |

—

‘uncertainty of measurement (accuracy)’ is the precision with which an instrument or a chain of instruments is capable to represent an actual value as established by a highly-calibrated measurement reference;

| — | ‘permissible deviation (average over test period)’ is the maximum difference, negatively or positively, allowed between a measured parameter, averaged over the test period, and a set value; |
| --- | --- |

—

‘permissible deviation (average over test period)’ is the maximum difference, negatively or positively, allowed between a measured parameter, averaged over the test period, and a set value;

| — | ‘permissible deviations of individual measured values from average values’ is the maximum difference, negatively or positively, allowed between a measured parameter and the average value of that parameter over the test period; |
| --- | --- |

—

‘permissible deviations of individual measured values from average values’ is the maximum difference, negatively or positively, allowed between a measured parameter and the average value of that parameter over the test period;

(a)   Electricity and fossil fuels

| Measured parameter | Unit | Value | Permissible deviation (average over test period) | Uncertainty of measurement (accuracy) |
| --- | --- | --- | --- | --- |
| Electricity |
| Power | W | | | ± 2 % |
| Energy | kWh | | | ± 2 % |
| Voltage, test-period > 48 h | V | 230 / 400 | ± 4 % | ± 0,5 % |
| Voltage, test-period < 48h | V | 230 / 400 | ± 4 % | ± 0,5 % |
| Voltage, test-period < 1 h | V | 230 / 400 | ± 4 % | ± 0,5 % |
| Electric current | A | | | ± 0,5 % |
| Frequency | Hz | 50 | ± 1 % | |
| Gas |
| Types | — | Test gases EN 437 | | |
| Net calorific value (NCV) and
  Gross calorific value (GCV) | MJ/m3 | Test gases EN 437 | | ± 1 % |
| Temperature | K | 288,15 | | ± 0,5 |
| Pressure | mbar | 1 013,25 | | ± 1 % |
| Density | dm3/kg | | | ± 0,5 % |
| Flow rate | m3/s or l/min | | | ± 1 % |
| Oil |
| Heating gas oil |
| Composition, Carbon/ Hydrogen/ Sulfur | kg/kg | 86/13,6/0,2 % | | |
| N-fraction | mg/kg | 140 | ± 70 | |
| Net calorific value (NCV, Hi) | MJ/kg | 42,689 (2) | | |
| Gross calorific value (GCV, Hs) | MJ/kg | 45,55 | | |
| Density ρ15 at 15 °C | kg/dm3 | 0,85 | | |
| Kerosene |
| Composition, Carbon/ Hydrogen/ Sulfur | kg/kg | 85/14,1/0,4 % | | |
| Net calorific value (NCV, Hi) | MJ/kg | 43,3 (2) | | |
| Gross calorific value (GCV, Hs) | MJ/kg | 46,2 | | |
| density ρ15 at 15 °C | kg/dm3 | 0,79 | | |

Measured parameter

Unit

Value

Permissible deviation (average over test period)

Uncertainty of measurement (accuracy)

Electricity

Electricity

Power

W

± 2 %

Energy

kWh

± 2 %

Voltage, test-period > 48 h

V

230 / 400

± 4 %

± 0,5 %

Voltage, test-period < 48h

V

230 / 400

± 4 %

± 0,5 %

Voltage, test-period < 1 h

V

230 / 400

± 4 %

± 0,5 %

Electric current

A

± 0,5 %

Frequency

Hz

50

± 1 %

Gas

Gas

Types

—

Test gases EN 437

Net calorific value (NCV) and

Gross calorific value (GCV)

MJ/m3

3

Test gases EN 437

± 1 %

Temperature

K

288,15

± 0,5

Pressure

mbar

1 013,25

± 1 %

Density

dm3/kg

3

± 0,5 %

Flow rate

m3/s or l/min

3

± 1 %

Oil

Oil

Heating gas oil

Heating gas oil

Composition, Carbon/ Hydrogen/ Sulfur

kg/kg

86/13,6/0,2 %

N-fraction

mg/kg

140

± 70

Net calorific value (NCV, Hi)

MJ/kg

42,689 (2)

2

Gross calorific value (GCV, Hs)

GCV

MJ/kg

45,55

Density ρ15 at 15 °C

kg/dm3

3

0,85

Kerosene

Kerosene

Composition, Carbon/ Hydrogen/ Sulfur

kg/kg

85/14,1/0,4 %

Net calorific value (NCV, Hi)

MJ/kg

43,3 (2)

2

Gross calorific value (GCV, Hs)

GCV

MJ/kg

46,2

density ρ15 at 15 °C

kg/dm3

3

0,79

(b)   Solar energy for solar collector tests

| Measured parameter | Unit | Value | Permissible deviation (average over test period) | Uncertainty of measurement (accuracy) |
| --- | --- | --- | --- | --- |
| Test solar irradiance (global G, short wave) | W/m2 | > 700 W/m2 | ± 50 W/m2 (test) | ± 10 W/m2 (indoors) |
| Diffuse solar irradiance (fraction of total G) | % | < 30 % | | |
| Thermal irradiance variation (indoors) | W/m2 | | | ± 10 W/m2 |
| Fluid temperature at collector inlet/outlet | °C/ K | range 0-99 °C | ± 0,1 K | ± 0,1 K |
| Fluid temperature difference inlet/outlet | | | | ± 0,05 K |
| Incidence angle (to normal) | ° | < 20° | ± 2 % (<20°) | |
| Air speed parallel to collector | m/s | 3 ± 1 m/s | | 0,5 m/s |
| Fluid flow rate (also for simulator) | kg/s | 0,02 kg/s per m2 collector aperture area | ± 10 % between tests | |
| Pipe heat loss of loop in test | W/K | <0,2 W/K | | |

Measured parameter

Unit

Value

Permissible deviation (average over test period)

Uncertainty of measurement (accuracy)

Test solar irradiance (global G, short wave)

W/m2

2

> 700 W/m2

2

± 50 W/m2 (test)

2

± 10 W/m2 (indoors)

2

Diffuse solar irradiance (fraction of total G)

%

< 30 %

Thermal irradiance variation (indoors)

W/m2

2

± 10 W/m2

2

Fluid temperature at collector inlet/outlet

°C/ K

range 0-99 °C

± 0,1 K

± 0,1 K

Fluid temperature difference inlet/outlet

± 0,05 K

Incidence angle (to normal)

°

< 20°

± 2 % (<20°)

Air speed parallel to collector

m/s

3 ± 1 m/s

0,5 m/s

Fluid flow rate (also for simulator)

kg/s

0,02 kg/s per m2 collector aperture area

2

± 10 % between tests

Pipe heat loss of loop in test

W/K

<0,2 W/K

(c)   Ambient heat energy

| Measured parameter | Unit | Permissible deviation (average over test period) | Permissible deviations (individual tests) | Uncertainty of measurement (accuracy) |
| --- | --- | --- | --- | --- |
| Brine or water heat source |
| Water/brine inlet temperature | °C | ± 0,2 | ± 0,5 | ± 0,1 |
| Volume flow | m3/s or l/min | ± 2 % | ± 5 % | ± 2 % |
| Static pressure difference | Pa | — | ± 10 % | ± 5 Pa/ 5 % |
| Air heat source |
| Outdoor air temperature (dry bulb) Tj | °C | ± 0,3 | ± 1 | ± 0,2 |
| Vent exhaust air temperature | °C | ± 0,3 | ± 1 | ± 0,2 |
| Indoor air temperature | °C | ± 0,3 | ± 1 | ± 0,2 |
| Volume flow | dm3/s | ± 5 % | ± 10 % | ± 5 % |
| Static pressure difference | Pa | — | ± 10 % | ± 5 Pa/ 5 % |

Measured parameter

Unit

Permissible deviation (average over test period)

Permissible deviations (individual tests)

Uncertainty of measurement (accuracy)

Brine or water heat source

Brine or water heat source

Water/brine inlet temperature

Water/brine inlet temperature

°C

± 0,2

± 0,5

± 0,1

Volume flow

Volume flow

m3/s or l/min

3

± 2 %

± 5 %

± 2 %

Static pressure difference

Pa

—

± 10 %

± 5 Pa/ 5 %

Air heat source

Air heat source

Outdoor air temperature (dry bulb) Tj

Outdoor air temperature (dry bulb) Tj

°C

± 0,3

± 1

± 0,2

Vent exhaust air temperature

Vent exhaust air temperature

°C

± 0,3

± 1

± 0,2

Indoor air temperature

°C

± 0,3

± 1

± 0,2

Volume flow

Volume flow

dm3/s

3

± 5 %

± 10 %

± 5 %

Static pressure difference

Pa

—

± 10 %

± 5 Pa/ 5 %

(d)   Test conditions and tolerances on outputs

| Measured parameter | Unit | Value | Permissible deviation (average over test period) | Permissible deviations (individual tests) | Uncertainty of measurement (accuracy) |
| --- | --- | --- | --- | --- | --- |
| Ambient |
| Ambient temperature indoors | °C or K | 20 °C | ± 1 K | ± 2 K | ± 1 K |
| Air speed heat pump (at water heater off) | m/s | < 1,5 m/s | | | |
| Air speed other | m/s | < 0,5 m/s | | | |
| Sanitary water |
| Cold water temperature solar | °C or K | 10 °C | ± 1 K | ± 2 K | ± 0,2 K |
| Cold water temperature other | °C or K | 10 °C | ± 1 K | ± 2 K | ± 0,2 K |
| Cold water pressure gas-fired water heaters | bar | 2 bar | | ± 0,1 bar | |
| Cold water pressure other (except electric instantaneous water heaters) | bar | 3 bar | | | ± 5 % |
| Hot water temperature gas-fired water heaters | °C or K | | | | ± 0,5 K |
| Hot water temperature electric instantaneous | °C or K | | | | ± 1 K |
| Water temperature (in-/outlet) other | °C or K | | | | ± 0,5 K |
| Volume flow rate heat pump water heaters | dm3/s | | ± 5 % | ± 10 % | ± 2 % |
| Volume flow rate Electric Instantaneous Water Heaters | dm3/s | | | | ≥10 l/min: ± 1 %
  < 10 l/min: ± 0,1 l/min |
| Volume flow rate other water heaters | dm3/s | | | | ± 1 % |

Measured parameter

Unit

Value

Permissible deviation (average over test period)

Permissible deviations (individual tests)

Uncertainty of measurement (accuracy)

Ambient

Ambient

Ambient temperature indoors

Ambient temperature indoors

°C or K

20 °C

± 1 K

± 2 K

± 1 K

Air speed heat pump (at water heater off)

m/s

< 1,5 m/s

Air speed other

m/s

< 0,5 m/s

Sanitary water

Sanitary water

Cold water temperature solar

°C or K

10 °C

± 1 K

± 2 K

± 0,2 K

Cold water temperature other

°C or K

10 °C

± 1 K

± 2 K

± 0,2 K

Cold water pressure gas-fired water heaters

bar

2 bar

± 0,1 bar

Cold water pressure other (except electric instantaneous water heaters)

bar

3 bar

± 5 %

Hot water temperature gas-fired water heaters

°C or K

± 0,5 K

Hot water temperature electric instantaneous

°C or K

± 1 K

Water temperature (in-/outlet) other

°C or K

± 0,5 K

Volume flow rate heat pump water heaters

dm3/s

3

± 5 %

± 10 %

± 2 %

Volume flow rate Electric Instantaneous Water Heaters

dm3/s

3

≥10 l/min: ± 1 %

< 10 l/min: ± 0,1 l/min

Volume flow rate other water heaters

dm3/s

3

± 1 %

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(1)  It is intended that these transitional methods will ultimately be replaced by harmonised standard(s). When available, reference(s) to the harmonised standard(s) will be published in the Official Journal of the European Union in accordance with Articles 9 and 10 of Directive 2009/125/EC.

1

Official Journal of the European Union

(2)  Default value, if value is not determined calorimetrically. Alternatively, if volumetric mass and sulphur content are known (e.g. by basic analysis) the net heating value (Hi) may be determined with:

2

Hi = 52,92 – (11,93 × ρ15) – (0,3 –S) in MJ/kg

Hi

ρ15

S

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