ANNEX VIISupplementary provisions
ANNEX VII Measurements 1. For the purposes of compliance and verification of compliance with the requirements of this Regulation, measurements shall be made using harmonised standards the reference numbers of which have been published for this purpose in the Official Journal of the European Union , or using other reliable, accurate and reproducible measurement methods that take into account the generally recognised state-of-the-art methods. They shall meet the conditions and technical parameters set out in points 2 to 9. 2. General conditions for testing water heaters: (a) measurements shall be carried out using the load profiles set out in Table 3; (b) measurements shall be carried out using a 24-hour measurement cycle as follows: — 00:00 to 06:59: no water draw-off, — from 07:00: water draw-offs according to the declared load profile, — from end of last water draw-off until 24:00: no water draw-off; (c) the declared load profile shall be the maximum load profile or the load profile one below the maximum load profile. Table 3 Load profiles of water heaters h 3XS XXS XS S Q tap f T m Q tap f T m Q tap f T m Q tap f T m T p kWh l/min °C kWh l/min °C kWh l/min °C kWh l/min °C °C 07:00 0,015 2 25 0,105 2 25 0,105 3 25 07:05 0,015 2 25 07:15 0,015 2 25 07:26 0,015 2 25 07:30 0,015 2 25 0,105 2 25 0,525 3 35 0,105 3 25 07:45 08:01 08:05 08:15 08:25 08:30 0,105 2 25 0,105 3 25 08:45 09:00 0,015 2 25 09:30 0,015 2 25 0,105 2 25 0,105 3 25 10:00 10:30 11:00 11:30 0,015 2 25 0,105 2 25 0,105 3 25 11:45 0,015 2 25 0,105 2 25 0,105 3 25 12:00 0,015 2 25 0,105 2 25 12:30 0,015 2 25 0,105 2 25 12:45 0,015 2 25 0,105 2 25 0,525 3 35 0,315 4 10 55 14:30 0,015 2 25 15:00 0,015 2 25 15:30 0,015 2 25 16:00 0,015 2 25 16:30 17:00 18:00 0,105 2 25 0,105 3 25 18:15 0,105 2 25 0,105 3 40 18:30 0,015 2 25 0,105 2 25 19:00 0,015 2 25 0,105 2 25 19:30 0,015 2 25 0,105 2 25 20:00 0,105 2 25 20:30 1,05 3 35 0,42 4 10 55 20:45 0,105 2 25 20:46 21:00 0,105 2 25 21:15 0,015 2 25 0,105 2 25 21:30 0,015 2 25 0,525 5 45 21:35 0,015 2 25 0,105 2 25 21:45 0,015 2 25 0,105 2 25 Q ref 0,345 2,100 2,100 2,100 Continued Table 3 Load profiles of water heaters h M L XL Q tap f T m T p Q tap f T m T p Q tap f T m T p kWh l/min °C °C kWh l/min °C °C kWh l/min °C °C 07:00 0,105 3 25 0,105 3 25 0,105 3 25 07:05 1,4 6 40 1,4 6 40 07:15 1,82 6 40 07:26 0,105 3 25 07:30 0,105 3 25 0,105 3 25 07:45 0,105 3 25 4,42 10 10 40 08:01 0,105 3 25 0,105 3 25 08:05 3,605 10 10 40 08:15 0,105 3 25 0,105 3 25 08:25 0,105 3 25 08:30 0,105 3 25 0,105 3 25 0,105 3 25 08:45 0,105 3 25 0,105 3 25 0,105 3 25 09:00 0,105 3 25 0,105 3 25 0,105 3 25 09:30 0,105 3 25 0,105 3 25 0,105 3 25 10:00 0,105 3 25 10:30 0,105 3 10 40 0,105 3 10 40 0,105 3 10 40 11:00 0,105 3 25 11:30 0,105 3 25 0,105 3 25 0,105 3 25 11:45 0,105 3 25 0,105 3 25 0,105 3 25 12:00 12:30 12:45 0,315 4 10 55 0,315 4 10 55 0,735 4 10 55 14:30 0,105 3 25 0,105 3 25 0,105 3 25 15:00 0,105 3 25 15:30 0,105 3 25 0,105 3 25 0,105 3 25 16:00 0,105 3 25 16:30 0,105 3 25 0,105 3 25 0,105 3 25 17:00 0,105 3 25 18:00 0,105 3 25 0,105 3 25 0,105 3 25 18:15 0,105 3 40 0,105 3 40 0,105 3 40 18:30 0,105 3 40 0,105 3 40 0,105 3 40 19:00 0,105 3 25 0,105 3 25 0,105 3 25 19:30 20:00 20:30 0,735 4 10 55 0,735 4 10 55 0,735 4 10 55 20:45 20:46 4,42 10 10 40 21:00 3,605 10 10 40 21:15 0,105 3 25 0,105 3 25 21:30 1,4 6 40 0,105 3 25 4,42 10 10 40 21:35 21:45 Q ref 5,845 11,655 19,07 Continued Table 3 Load profiles of water heaters h XXL Q tap f T m T p kWh l/min °C °C 07:00 0,105 3 25 07:05 07:15 1,82 6 40 07:26 0,105 3 25 07:30 07:45 6,24 16 10 40 08:01 0,105 3 25 08:05 08:15 0,105 3 25 08:25 08:30 0,105 3 25 08:45 0,105 3 25 09:00 0,105 3 25 09:30 0,105 3 25 10:00 0,105 3 25 10:30 0,105 3 10 40 11:00 0,105 3 25 11:30 0,105 3 25 11:45 0,105 3 25 12:00 12:30 12:45 0,735 4 10 55 14:30 0,105 3 25 15:00 0,105 3 25 15:30 0,105 3 25 16:00 0,105 3 25 16:30 0,105 3 25 17:00 0,105 3 25 18:00 0,105 3 25 18:15 0,105 3 40 18:30 0,105 3 40 19:00 0,105 3 25 19:30 20:00 20:30 0,735 4 10 55 20:45 20:46 6,24 16 10 40 21:00 21:15 0,105 3 25 21:30 6,24 16 10 40 21:35 21:45 Q ref 24,53 3. Conditions for testing the smart control compliance ( smart ) of water heaters Where the supplier deems it appropriate to declare the value of smart as being ‘1’, measurements of the weekly electricity and/or fuel consumption with smart controls and the weekly electricity and/or fuel consumption without smart controls shall be carried out using a two-week measurement cycle as follows: — days 1 to 5: random sequence of load profiles chosen from the declared load profile and the load profile one below the declared load profile, and smart control disabled, — days 6 and 7: no water draw-offs, and smart control disabled, — days 8 to 12: repetition of the same sequence applied for days 1 to 5, and smart control enabled, — days 13 and 14: no water draw-offs, and smart control enabled, — the difference between the useful energy content measured during days 1 to 7 and the useful energy content measured during days 8 to 14 shall not exceed 2 % of Q ref of the declared load profile. 4. Conditions for testing solar water heaters The solar collector, solar hot water storage tank, pump in the collector loop (if applicable) and heat generator shall be tested separately. Where the solar collector and solar hot water storage tank cannot be tested separately, they shall be tested in combination. The heat generator shall be tested under the conditions set out in point 2 of this Annex. The results shall be used for the calculations set out in point 3(b) of Annex VIII under the conditions set out in Tables 4 and 5. For the purpose of establishing Q tota the efficiency of the heat generator using the Joule effect in electric resistance heating elements is assumed to be 100/ CC , expressed in %. 5. Conditions for testing heat pump water heaters — Heat pump water heaters shall be tested under the conditions set out in Table 6, — Heat pump water heaters which use ventilation exhaust air as the heat source shall be tested under the conditions set out in Table 7. 6. Conditions for testing solar devices The solar collector, solar hot water storage tank and pump in the collector loop (if applicable) shall be tested separately. Where the solar collector and solar hot water storage tank cannot be tested separately, they shall be tested in combination. The results shall be used for the calculations of Q nonsol for the load profiles M, L, XL and XXL under the average climate conditions set out in Tables 4 and 5 and Q aux . Table 4 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 Colder climate conditions –3,8 –4,1 –0,6 +5,2 +11,0 +16,5 +19,3 +18,4 +12,8 +6,7 +1,2 –3,5 Warmer climate conditions +9,5 +10,1 +11,6 +15,3 +21,4 +26,5 +28,8 +27,9 +23,6 +19,0 +14,5 +10,4 Table 5 Average global solar irradiance [W/m 2 ] 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 Colder climate conditions 22 75 124 192 234 237 238 181 120 64 23 13 Warmer climate conditions 128 137 182 227 248 268 268 263 243 175 126 109 Table 6 Standard rating conditions for heat pump water heaters, temperatures in dry bulb air temperature (wet bulb air temperature in brackets) Heat source Outdoor air Indoor air Exhaust air Brine Water Climate conditions Average climate conditions Colder climate conditions Warmer climate conditions Not applicable All climate conditions Temperature + 7 °C (+ 6 °C) + 2 °C (+ 1 °C) + 14 °C (+ 13 °C) + 20 °C (maximum + 15 °C) + 20 °C (+ 12 °C) 0 °C (inlet)/– 3 °C (outlet) + 10 °C (inlet)/+ 7 °C (outlet) Table 7 Maximum ventilation exhaust air available [m 3 /h], at a temperature of 20 °C and with humidity of 5,5 g/m 3 Declared load profile XXS XS S M L XL XXL Maximum ventilation exhaust air available 109 128 128 159 190 870 1 021 7. Technical parameters of water heaters The following parameters shall be established for water heaters: (a) the daily electricity consumption Q elec in kWh, rounded to three decimal places; (b) the declared load profile, expressed by the appropriate letter in accordance with Table 3 of this Annex; (c) the sound power level in dB, indoors, rounded to the nearest integer (for heat pump water heaters, if applicable); in addition, for water heaters using fossil and/or biomass fuels: (d) the daily fuel consumption Q fuel in kWh in terms of GCV , rounded to three decimal places; in addition, for water heaters for which the value of smart is declared as being ‘1’: (e) the weekly fuel consumption with smart controls Q fuel,week,smart in kWh in terms of GCV , rounded to three decimal places; (f) the weekly electricity consumption with smart controls Q elec,week,smart in kWh, rounded to three decimal places; (g) the weekly fuel consumption without smart controls Q fuel,week in kWh in terms of GCV , rounded to three decimal places; (h) the weekly electricity consumption without smart controls Q elec,week in kWh, rounded to three decimal places; in addition, for solar water heaters: (i) the collector aperture area A sol in m 2 , rounded to two decimal places; (j) the zero-loss efficiency η 0 , rounded to three decimal places; (k) the first-order coefficient a 1 in W/(m 2 K), rounded to two decimal places; (l) the second-order coefficient a 2 in W/(m 2 K 2 ), rounded to three decimal places; (m) the incidence angle modifier IAM , rounded to two decimal places; (n) the pump power consumption solpump in W, rounded to two decimal places; (o) the standby power consumption solstandby in W, rounded to two decimal places; in addition, for heat pump water heaters: (p) the sound power level L WA in dB, outdoors, rounded to the nearest integer. 8. Technical parameters of hot water storage tanks The following parameters shall be established for hot water storage tanks: (a) the storage volume V in litres, rounded to one decimal place; (b) the standing loss S in W, rounded to one decimal place. 9. Technical parameters of solar devices The following parameters shall be established for solar devices: (a) the collector aperture area A sol in m 2 , rounded to two decimal places; (b) the zero-loss efficiency η 0 , rounded to three decimal places; (c) the first-order coefficient a 1 in W/(m 2 K), rounded to two decimal places; (d) the second-order coefficient a 2 in W/(m 2 K 2 ), rounded to three decimal places; (e) the incidence angle modifier IAM , rounded to two decimal place; (f) the pump power consumption solpump in W, rounded to two decimal places; (g) the standby power consumption, solstandby in W, rounded to two decimal places.