TÜV Rheinland Energie und Umwelt GmbH

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Report No. K 1682 2015 B1 Verification of the ErP requirements according to: Energy Performance acc. COMMISSION REGULATION (EU) No 813/2013 (Ecodesign directive 2009/125/EC) and acc.

1 Report No. K B1 Verification of the ErP requirements according to: Energy Performance acc. COMMISSION REGULATION (EU) No 813/2013 (Ecodesign directive 2009/125/EC) and acc. COMMISSION DELEGATED REGULATION (EU) No 811/2013 (Energy Labelling Directive 2010/30/EU) Boiler: WGB EVO H BBS EVO H Company: August Brötje GmbH 2015 This report may only be published and forwarded to third parties in its complete, unabridged form. The publication or dissemination of extracts, summaries, appraisals or any other adaptation and alterations, in particular for advertising purposes, is only permissible with the prior written permission of TÜV Rheinland. Publication of page 2 is permitted. The test results presented in this report refer solely to the test object stated as described on page 2. The report does not represent a general statement about the serial production of the test object and gives not an authorization for use of a TÜV Rheinland test- / certification mark TÜV Rheinland Energie und Umwelt GmbH Am Grauen Stein D Köln Telefon: / Telefax: / Managing Director Local court Cologne HRB Marcus Staude K B1.docx

August-Brötje-Straße 17 D-26180 Rastede WGB EVO H BBS EVO H Gas condensing boiler Operating method in the sense of the directive: CE-Ident. number: CE0085CO0217 Type of construction Boiler in acc.

couple 80/60 C WGB EVO 15 H BBS EVO 15 H WGB EVO 20 H WGB-M-EVO 20 H BBS EVO 20 H P1 Heat Output [kw] at 30% partial load 16,6 14,6 5,0 22,2 19,5 6,4 WGB-K EVO 20/28 H 22,2 19,5 6,4 WGB EVO 28 H BBS

2 Test Report Energy Performance acc. the regulation No 813/ Ecodesign Requirements and the regulation No 811/ Energy Labelling Directives Boiler manufacturer contractor: Type designation August Brötje GmbH August-Brötje-Straße 17 D Rastede WGB EVO H BBS EVO H Gas condensing boiler Operating method in the sense of the directive: CE-Ident. number: CE0085CO0217 Type of construction Boiler in acc. with EN Fuel: Natural Gas (G20) Type/Model P4 Heat Input Heat Output [kw] at [kw] temp. couple 80/60 C WGB EVO 15 H BBS EVO 15 H WGB EVO 20 H WGB-M-EVO 20 H BBS EVO 20 H P1 Heat Output [kw] at 30% partial load 16,6 14,6 5,0 22,2 19,5 6,4 WGB-K EVO 20/28 H 22,2 19,5 6,4 WGB EVO 28 H BBS EVO 28 H 31,0 27,2 9,2 Test basis: Regulations no. 811/2013 and no. 813/2013. This examination has been carried out in a test laboratory equipped in accordance with the document 2014/C207/02. The test results were reviewed by the impartial test centre of TÜV Rheinland. Test results: The requirements of the implementing Directive 2009/125/EC for condensing boilers are fulfilled with the following values: Seasonal space heating energy efficiency 93 % Seasonal space heating energy efficiency class A Cologne, /pom Expert Test Centre for Energy Appliances DIN- and DVGW-Test Centre Dep. Head of Test Centre Dipl.-Ing. A. Pomp Dipl.-Ing. M. Reimbold Order No.: Page 2 / 12 Report-No.: K B1

3 1 Verification of the EcoDesign Requirements 1.1 WGB EVO 15 H, BBS EVO 15 H Description Parameter Result Unit Efficiency at partial heat input* η 1 98,23 % Efficiency at rated heat output at 80/60 C* η 4 87,79 % Auxiliary electricity consumption at full load elmax 0,022 kw Auxiliary electricity consumption at partial load elmin 0,015 kw Auxiliary electricity consumption in standby mode P SB 0,003 kw Standby heat loss P stby 0,048 kw Ignition burner power consumption P ign 0 kw Useful heat output at 30% P 1 5,003 kw Useful heat output at 80/60 C P 4 14,619 kw Seasonal space heating energy efficiency in active mode η son 96,66 % Adjusted contribution of temperature controls F1-3 % Auxiliary electricity consumption F2-0,77 % Standby heat losses F3-0,16 % Ignition burner power consumption F4 0 % Sum: F1-F4-3,93 % Seasonal space heating energy efficiency ηs 92,73 % For detailed test results, see Annex I *Expressed in terms of GCV Order No.: Page 3 / 12 Report-No.: K B1

4 1.2 WGB EVO 20 H, WGB-M-EVO 20 H, BBS EVO 20 H Description Parameter Result Unit Efficiency at partial heat input* η 1 97,96 % Efficiency at rated heat output at 80/60 C* η 4 87,67 % Auxiliary electricity consumption at full load elmax 0,030 kw Auxiliary electricity consumption at partial load elmin 0,015 kw Auxiliary electricity consumption in standby mode P SB 0,003 kw Standby heat loss P stby 0,079 kw Ignition burner power consumption P ign 0 kw Useful heat output at 30% P 1 6,403 kw Useful heat output at 80/60 C P 4 19,456 kw Seasonal space heating energy efficiency in active mode η son 96,42 % Adjusted contribution of temperature controls F1-3 % Auxiliary electricity consumption F2-0,63 % Standby heat losses F3-0,12 % Ignition burner power consumption F4 0 % Sum: F1-F4-3,75 % Seasonal space heating energy efficiency ηs 92,67 % For detailed test results, see Annex I *Expressed in terms of GCV Order No.: Page 4 / 12 Report-No.: K B1

5 1.3 WGB-K EVO 20/28 H Description Parameter Result Unit Efficiency at partial heat input* η 1 98,03 % Efficiency at rated heat output at 80/60 C* η 4 87,79 % Auxiliary electricity consumption at full load elmax 0,030 kw Auxiliary electricity consumption at partial load elmin 0,016 kw Auxiliary electricity consumption in standby mode P SB 0,003 kw Standby heat loss P stby 0,054 kw Ignition burner power consumption P ign 0 kw Useful heat output at 30% P 1 6,2 kw Useful heat output at 80/60 C P 4 21,6 kw Seasonal space heating energy efficiency in active mode η son 96,49 % Adjusted contribution of temperature controls F1-3 % Auxiliary electricity consumption F2-0,65 % Standby heat losses F3-0,13 % Ignition burner power consumption F4 0 % Sum: F1-F4-3,77 % Seasonal space heating energy efficiency ηs 92,72 % For detailed test results, see Annex I *Expressed in terms of GCV Order No.: Page 5 / 12 Report-No.: K B1

6 1.4 WGB EVO 28 H, BBS EVO 28 H Description Parameter Result Unit Efficiency at partial heat input* η 1 97,84 % Efficiency at rated heat output at 80/60 C* η 4 87,68 % Auxiliary electricity consumption at full load elmax 0,045 kw Auxiliary electricity consumption at partial load elmin 0,016 kw Auxiliary electricity consumption in standby mode P SB 0,003 kw Standby heat loss P stby 0,079 kw Ignition burner power consumption P ign 0 kw Useful heat output at 30% P 1 9,183 kw Useful heat output at 80/60 C P 4 26,511 kw Seasonal space heating energy efficiency in active mode η son 96,32 % Adjusted contribution of temperature controls F1-3 % Auxiliary electricity consumption F2-0,51 % Standby heat losses F3-0,09 % Ignition burner power consumption F4 0 % Sum: F1-F4-3,60 % Seasonal space heating energy efficiency ηs 92,72 % For detailed test results, see Annex I *Expressed in terms of GCV Order No.: Page 6 / 12 Report-No.: K B1

7 Evaluation of the Energy Labelling Requirements Seasonal space heating efficiency class Seasonal space heating efficiency η s in % A +++ η s 150 A η s <150 A + 98 η s <125 A 90 η s <98 B 82 η s <90 C 75 η s <82 D 36 η s <75 E 34 η s <36 F 30 η s <34 G η s <30 If a system to mark the energy efficiency in accordance with Annex II Energy Efficiency Classes article 1 Seasonal space heating energy efficiency classes of the supplementing Directive 2010/30/EU is in existence, then the boilers may be marked as listed: Boiler η s Efficiency Class WGB EVO 15 H BBS EVO 15 H 93,0 A WGB EVO 20 H WGB-M-EVO 20 H BBS EVO 20 H 93,0 A WGB-K EVO 20/28 H 93,0 A WGB EVO 28 H BBS EVO 28 H *Expressed in terms of GCV 93,0 A Order No.: Page 7 / 12 Report-No.: K B1

8 2 Statement of test results The gas condensing boiler series WGB EVO H BBS EVO H of the company August Brötje GmbH fulfils and corresponds to the requirements of the commission regulation standards (No 813/2013) for electrical boiler space heater and achieved a water heating energy efficiency of 93% that correspond to the water heating efficiency class A in accordance with Annex II Energy Efficiency Classes article 1 of the commission regulation (No 811/2013). The evaluation of the results of this report with respect of conformity with the related commission regulation (No 811/2013 and 813/2013) is only a part of the conformity assessment to achieve the ErP-Label. Order No.: Page 8 / 12 Report-No.: K B1

9 Appendix Efficiency calculation Report No.: K B1 Order No.: Manufacturer: Brötje Type: EcoTherm WGB EVO 15 H Nominal power: Temperature (80/60): 2,8-14,6 kw Temperature 50/30): 3,1-15,6 kw Attempt No.: Fuel E-Gas (G 20) E-Gas (G 20) E-Gas (G 20) Part load 30% 80/60 max 80/60 min Return 30 C Test Point: Nominal power expected kw 14,6 2,8 4,9 Nominal power measured kw 14,6 2,8 5,0 Efficiency measured 87,79 86,80 98,23 Ambient: Temperature C 24,2 22,5 23,2 Humidity % 27,0 27,0 33,0 Barometric pressure mbar 997,3 993,2 997,2 Watercontent air g/kg 5,12 4,65 5,91 Fuel: Gasflow m³/h 1,629 0,310 0,496 Pressure gascounter mbar 26,8 27,4 26,1 Temperature gascounter C 23,2 22,5 23,2 Gasfactor (15 C, 1013,25 mbar) - 0,983 0,982 0,982 Gasflow, (15 C, 1013,25 mbar) m3/h 1,60 0,30 0,49 Gasmeter Error % 0,805-2,314 0,275 Heat input kw 16,651 3,262 5,094 Gaspressure at boiler mbar 20,5 21,3 21,5 Heat discharging Flow C 79,9 79,9 35,7 Return C 59,9 59,8 30,1 Delta t K 70,2 70,0 26,5 Coolingwater temp. C 9,8 9,8 9,2 Volumeflow m³/h 176,1 31,4 162,0 Massflow kg/h 176,0 31,4 162,0 Heat output kw 14,619 2,832 5,003 Efficiency measured % 87,79 86,80 98,23 Fluegas: Fluegas temperature C 63,3 56,2 30,8 CO2-Content Vol.-% 8,90 9,05 9,00 O2-Content (measured) Vol.-% 5,00 4,70 4,80 Condensate measured kg/h 0,00 0,00 0,67 Condensate kg/m³ Gas 0,000 0,000 1,374 Condensate Bonus % 0,00 0,00 8,88 Fluegas analysis: CO vpm 20,6 0,0 8,0 CO pure vpm 27,0 0,0 10,4 CO-Content mg/kwh 27,5 0,0 10,5 NOx-Content vpm 13,5 14,5 15,0 NOx air free vpm 17,7 18,7 19,4 NOx-Content mg/kwh 29,5 31,1 32,4 NOx (3%O2) mg/m³ 31,1 32,8 34,2 NOx-Emission (corrected) mg/kwh 24,9 27,6 28,5 Flue gas dry m³/m³ 11,19 10,98 11,05 Flue gas losses (o.k.) % 1,86 1,57 0,30 Flue gas losses (m.k.), Näherung % Operation mode: On Time s Intervals El. Power Consumption El. Power Consumption W Avg. El. Power Consumption W Stand by W Order No.: Page 9 / 12 Report-No.: K B1

10 Efficiency calculation Report No.: K B1 Order No.: Manufacturer: Brötje Type: EcoTherm WGB EVO 20 H Nominal power: Temperature (80/60): 2,8-19,5 kw Temperature 50/30): 3,1-20,8 kw Date of testing Fuel E-Gas (G 20) E-Gas (G 20) E-Gas (G 20) Part load 30% 80/60 max 80/60 min Return 30 C Test Point: Nominal power expected kw 19,5 2,8 6,5 Nominal power measured kw 19,5 2,8 6,4 Efficiency measured 87,67 80,20 97,96 Ambient: Temperature C 24,2 22,5 23,2 Humidity % 27,0 27,0 33,0 Barometric pressure mbar 993,0 993,2 997,3 Watercontent air g/kg 5,14 4,65 5,91 Fuel: Gasflow m³/h 2,176 0,310 0,642 Pressure gascounter mbar 27,0 27,4 21,0 Temperature gascounter C 23,0 23,4 Gasfactor (15 C, 1013,25 mbar) - 0,979 1,063 0,977 Gasflow, (15 C, 1013,25 mbar) m3/h 2,13 0,33 0,63 Gasmeter Error % 0,679-2,314 0,534 Heat input kw 22,192 3,531 6,536 Gaspressure at boiler mbar 20,5 21,3 32,6 Heat discharging Flow C 79,7 79,9 35,8 Return C 59,7 59,8 30,1 Delta t K 70,0 70,0 26,6 Coolingwater temp. C 9,8 9,8 9,2 Volumeflow m³/h 236,0 31,4 207,0 Massflow kg/h 235,9 31,4 206,9 Heat output kw 19,456 2,832 6,403 Efficiency measured % 87,67 80,20 97,96 Fluegas: Fluegas temperature C 64,8 56,2 30,9 CO2-Content Vol.-% 9,00 9,05 9,00 O2-Content (measured) Vol.-% 4,80 4,70 4,80 Condensate measured kg/h 0,00 0,00 0,80 Condensate kg/m³ Gas 0,000 0,000 1,284 Condensate Bonus % 0,00 0,00 8,30 Fluegas analysis: CO vpm 20,6 0,0 8,0 CO pure vpm 26,7 0,0 10,4 CO-Content mg/kwh 27,1 0,0 10,5 NOx-Content vpm 13,5 14,5 15,0 NOx air free vpm 17,5 18,7 19,4 NOx-Content mg/kwh 29,2 31,1 32,4 NOx (3%O2) mg/m³ 30,7 32,8 34,2 NOx-Emission (corrected) mg/kwh 24,5 27,6 28,5 Flue gas dry m³/m³ 11,05 10,98 11,05 Flue gas losses (o.k.) % 1,91 1,57 0,31 Flue gas losses (m.k.), Näherung % Operation mode: On Time s Intervals El. Power Consumption El. Power Consumption W Avg. El. Power Consumption W Stand by W Order No.: Page 10 / 12 Report-No.: K B1

11 Efficiency calculation Report No.: K B1 Order No.: Manufacturer: Brötje Type: EcoTherm Plus WGB-K EVO 20/28 H Nominal power: Temperature (80/60): 3,8-19,5 (27,2) kw Temperature 50/30): 4,2-20,8 (29,1) kw Date of testing Fuel E-Gas (G 20) E-Gas (G 20) E-Gas (G 20) Part load 30% 80/60 80/60 min Return 30 C Test Point: Nominal power expected kw 19,5 3,8 6,0 Nominal power measured kw 21,6 3,8 6,2 Efficiency measured 97,41 96,30 108,78 Efficiency, min necessary % Required for ***, min. % Required for ****, min. % Ambient: Temperature C 22,2 22,3 24,6 Humidity % 36,0 35,0 33,0 Barometric pressure mbar 1004,3 1004,3 1004,6 Watercontent air g/kg 6,03 5,89 6,40 Fuel: Gasflow m³/h 2,375 0,414 0,616 Pressure gas counter mbar 23,1 27,6 22,3 Temperature gas counter C 21,3 22,3 23,4 Gasfactor (15 C, 1013,25 mbar) - 0,992 0,993 0,985 Gasflow, (15 C, 1013,25 mbar) m3/h 2,36 0,41 0,61 Gasmeter Error % 0,460-0,357-0,227 Heat input Hi kw 22,166 3,902 5,743 Heat input Hs kw 24,596 4,330 6,373 Gaspressure at boiler mbar 20,6 21,6 23,2 Heat discharging Flow C 79,7 80,0 35,8 Return C 59,8 59,7 30,1 Delta t K 68,4 68,8 25,5 Cooling water temp. C 11,3 11,2 10,3 Volumeflow m³/h 269,1 44,6 210,1 Massflow kg/h 269,1 44,6 210,0 Heat output kw 21,6 3,8 6,2 Efficiency measured Hi % 97,41 96,30 108,78 Efficiency measured Hs % 87,79 86,78 98,03 Fluegas: Fluegas temperature C 62,2 56,9 30,7 CO2-Content Vol.-% 8,92 9,06 9,00 O2-Content (measured) Vol.-% 5,00 4,70 4,80 Condensate measured kg/h 0,00 0,00 1,20 Condensate kg/m³ Gas 0,000 0,000 1,976 Condensate Bonus % 0,00 0,00 14,17 Fluegas analysis: CO vpm 16,0 0,0 8,0 CO pure vpm 21,0 0,0 10,4 CO-Content mg/kwh 23,7 0,0 11,7 NOx-Content vpm 14,0 13,9 15,0 NOx air free vpm 18,4 17,9 19,4 NOx-Content mg/kwh 34,0 33,1 36,0 NOx (3%O2) mg/m³ 32,3 31,5 34,2 NOx-Emission (corrected) mg/kwh 30,9 29,9 30,8 Flue gas dry m³/m³ 11,19 10,98 11,05 Flue gas losses (o.k.) % 2,10 1,79 0,25 Flue gas losses (m.k.), Näherung % Operation mode: On Time s Intervals El. Power Consumption El. Power Consumption W Avg. El. Power Consumption W Stand by W Order No.: Page 11 / 12 Report-No.: K B1

12 Efficiency calculation Report No.: K B1 Order No.: Manufacturer: Brötje Type: EcoTherm WGB EVO 28 G Nominal power: Temperature (80/60): 3,8-27,2 kw Temperature 50/30): 4,2-29,2 kw Date of testing Fuel E-Gas (G 20) E-Gas (G 20) E-Gas (G 20) Part load 30% 80/60 max 80/60 min Return 30 C Test Point: Nominal power expected kw 27,2 3,8 9,1 Nominal power measured kw 26,5 3,8 9,2 Efficiency measured 87,68 86,75 97,84 Ambient: Temperature C 22,4 22,3 24,6 Humidity % 32,0 35,0 33,0 Barometric pressure mbar 1004,3 1004,3 1005,3 Watercontent air g/kg 5,43 5,89 6,39 Fuel: Gasflow m³/h 2,924 0,413 0,916 Pressure gascounter mbar 26,7 27,6 21,0 Temperature gascounter C 22,5 22,3 23,4 Gasfactor (15 C, 1013,25 mbar) - 0,992 0,993 0,984 Gasflow, (15 C, 1013,25 mbar) m3/h 2,90 0,41 0,90 Gasmeter Error % 0,559-0,884 0,689 Heat input kw 30,235 4,335 9,386 Gaspressure at boiler mbar 20,4 21,6 32,6 Heat discharging Flow C 80,1 80,1 35,8 Return C 60,0 59,7 30,1 Delta t K 70,4 70,6 28,6 Coolingwater temp. C 9,8 9,5 7,2 Volumeflow m³/h 321,1 42,9 276,6 Massflow kg/h 321,0 42,8 276,6 Heat output kw 26,511 3,761 9,183 Efficiency measured % 87,68 86,75 97,84 Fluegas: Fluegas temperature C 65,8 57,0 30,7 CO2-Content Vol.-% 8,97 9,06 9,00 O2-Content (measured) Vol.-% 4,80 4,70 4,80 Condensate measured kg/h 0,00 0,00 1,20 Condensate kg/m³ Gas 0,000 0,000 1,329 Condensate Bonus % 0,00 0,00 8,59 Fluegas analysis: CO vpm 17,7 0,0 8,0 CO pure vpm 22,9 0,0 10,4 CO-Content mg/kwh 23,3 0,0 10,5 NOx-Content vpm 15,7 13,9 15,0 NOx air free vpm 20,4 17,9 19,4 NOx-Content mg/kwh 33,9 29,8 32,4 NOx (3%O2) mg/m³ 35,8 31,5 34,2 NOx-Emission (corrected) mg/kwh 30,4 26,9 27,4 Flue gas dry m³/m³ 11,05 10,98 11,05 Flue gas losses (o.k.) % 2,04 1,62 0,25 Flue gas losses (m.k.), Näherung % Operation mode: On Time s Intervals El. Power Consumption El. Power Consumption W Avg. El. Power Consumption W Stand by W Order No.: Page 12 / 12 Report-No.: K B1

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