# Commission Regulation (EU) No 814/2013 of 2 August 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 (Text with EEA relevance), Division 5: CONDITIONS FOR TESTING HEAT PUMP WATER HEATERS

Extent: E+W+S+N.I.

Heat pump water heaters shall be tested under the conditions set out in Table 4;
heat pump water heaters which use ventilation exhaust air as the heat source shall be tested under the conditions set out in Table 5.
Table 2
Average daytime temperature [°C]
January
February
March
April
May
June
July
August
September
October
November
December
Average climate conditions
2,8
2,6
7,4
12,2
16,3
19,8
21,0
22,0
17,0
11,9
5,6
3,2
Table 3
Average global solar irradiance [W/m2]
January
February
March
April
May
June
July
August
September
October
November
December
Average climate conditions
70
104
149
192
221
222
232
217
176
129
80
56
Table 4
Standard rating conditions for heat pump water heaters, temperatures in dry bulb air temperature (wet bulb air temperature indicated in brackets)
Heat source
Outdoor air
Indoor air
Exhaust air
Brine
Water
Temperature
+ 7 °C (+ 6 °C)
+ 20 °C
(maximum + 15 °C)
+ 20 °C
(+ 12 °C)
0 °C (inlet)/– 3 °C (outlet)
+ 10 °C (inlet)/+ 7 °C (outlet)
Table 5
Maximum ventilation exhaust air available [m3/h], at a temperature of 20 °C and with humidity of 5,5 g/m3
Declared load profile
XXS
XS
S
M
L
XL
XXL
3XL
4XL
Maximum ventilation exhaust air available
109
128
128
159
190
870
1 021
2 943
8 830

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Source: https://www.legislation.gov.uk/eur/2013/814/annex/III/division/5 (the official version)
Page: https://openlegislation.uk/eu-regulation-2013-814/annex-III/division-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.