ANNEX VIISupplementary provisions
ANNEX VII Measurements and calculations 1. For the purposes of compliance and verification of compliance with the requirements of this Regulation, measurements and calculations 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 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 6. 2. General conditions for measurements and calculations (a) For the purposes of the measurements set out in points 3 to 7, the indoor ambient temperature shall be set at 20 °C. (b) For the purposes of the calculations set out in points 3 to 7, electricity consumption shall be multiplied by a conversion coefficient CC of 2,5, unless the annual electricity consumption is expressed in final energy for the end-user, as set out in points 3(b), 4(g), 5(e) and 6. (c) For heaters equipped with supplementary heaters, the measurement and calculation of rated heat output, seasonal space heating energy efficiency, water heating energy efficiency, sound power level and emissions of nitrogen oxides shall take account of the supplementary heater. (d) Declared values for rated heat output, seasonal space heating energy efficiency, water heating energy efficiency, annual energy consumption and sound power level shall be rounded to the nearest integer. 3. Seasonal space heating energy efficiency and consumption of boiler space heaters, boiler combination heaters and cogeneration space heaters (a) The seasonal space heating energy efficiency η s shall be calculated as the seasonal space heating energy efficiency in active mode η son , corrected by contributions accounting for temperature controls, auxiliary electricity consumption, standby heat loss, ignition burner power consumption (if applicable) and, for cogeneration space heaters, corrected by adding the electrical efficiency multiplied by a conversion coefficient CC of 2,5. (b) The annual energy consumption Q HE in kWh in terms of final energy and/or in GJ in terms of GCV shall be calculated as the ratio of the reference annual heating demand and the seasonal space heating energy efficiency. 4. Seasonal space heating energy efficiency and consumption of heat pump space heaters and heat pump combination heaters (a) For establishing the rated coefficient of performance COP rated or rated primary energy ratio PER rated , or the sound power level, the operating conditions shall be the standard rating conditions set out in Table 9 and the same declared capacity for heating shall be used. (b) The active mode coefficient of performance SCOP on for average, colder and warmer climate conditions shall be calculated on the basis of the part load for heating Ph(T j ) , the supplementary capacity for heating sup(T j ) (if applicable), and the bin-specific coefficient of performance COPbin(Tj) or bin-specific primary energy ratio PERbin(T j ) , weighted by the bin-hours for which the bin conditions apply, using the following conditions: — the reference design conditions set out in Table 10; — the European reference heating season under average, colder and warmer climate conditions set out in Table 12; — if applicable, the effects of any degradation of energy efficiency caused by cycling, depending on the type of control of the heating capacity. (c) The reference annual heating demand Q H shall be the design load for heating Pdesignh for average, colder and warmer climate conditions, multiplied by the annual equivalent active mode hours H HE of 2 066, 2 465 and 1 336 for average, colder and warmer climate conditions, respectively. (d) The annual energy consumption Q HE shall be calculated as the sum of: — the ratio of the reference annual heating demand Q H and the active mode coefficient of performance SCOP on or active mode primary energy ratio SPER on ; and — the energy consumption for off, thermostat-off, standby, and crankcase heater mode during the heating season. (e) The seasonal coefficient of performance SCOP or seasonal primary energy ratio SPER shall be calculated as the ratio of the reference annual heating demand Q H and the annual energy consumption Q HE . (f) The seasonal space heating energy efficiency η s shall be calculated as the seasonal coefficient of performance SCOP divided by the conversion coefficient CC or the seasonal primary energy ratio SPER , corrected by contributions accounting for temperature controls and, for water-/brine-to-water heat pump space heaters and heat pump combination heaters, the electricity consumption of one or more ground water pumps. (g) The annual energy consumption Q HE in kWh in terms of final energy and/or GJ in terms of GCV shall be calculated as the ratio of the reference annual heating demand Q H and the seasonal space heating energy efficiency η s . 5. Water heating energy efficiency of combination heaters The water heating energy efficiency η wh of a combination heater shall be calculated as the ratio between the reference energy Q ref and the energy required for its generation under the following conditions: (a) measurements shall be carried out using the load profiles set out in Table 15; (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; (d) for heat pump combination heaters, the following additional conditions apply: — heat pump combination heaters shall be tested under the conditions set out in Table 9; — heat pump combination heaters which use ventilation exhaust air as the heat source shall be tested under the conditions set out in Table 11; (e) the annual electricity consumption AEC in kWh in terms of final energy shall be calculated as daily electricity consumption Q elec in kWh in terms of final energy multiplied by 220; (f) the annual fuel consumption AFC in GJ in terms of GCV shall be calculated as daily fuel consumption Q fuel multiplied by 220. 6. Conditions for measurements and calculations of 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 determination of the standing loss S and the calculations of the collector efficiency η col , the annual non-solar heat contribution Q nonsol for the load profiles M, L, XL and XXL under the average climate conditions set out in Tables 13 and 14, and the annual auxiliary electricity consumption Q aux in kWh in terms of final energy. Table 9 Standard rating conditions for heat pump space heaters and heat pump combination heaters Heat source Outdoor heat exchanger Indoor heat exchanger Climate condition Inlet dry bulb (wet bulb) temperature Heat pump space heaters and heat pump combination heaters, except low-temperature heat pumps Low-temperature heat pumps Inlet temperature Outlet temperature Inlet temperature Outlet temperature Outdoor air Average + 7 °C (+ 6 °C) +47 °C +55 °C +30 °C +35 °C Colder + 2 °C (+ 1 °C) Warmer + 14 °C (+ 13 °C) Exhaust air All + 20 °C (+ 12 °C) Inlet / outlet temperature Water All + 10 °C / + 7 °C Brine All 0 °C/– 3 °C Table 10 Reference design conditions for heat pump space heaters and heat pump combination heaters, temperatures in dry bulb air temperature (wet bulb air temperature indicated in brackets) Climate condition Reference design temperature Bivalent temperature Operation limit temperature Tdesignh T biv TOL Average – 10 (– 11) °C maximum + 2 °C maximum – 7 °C Colder – 22 (– 23) °C maximum – 7 °C maximum – 15 °C Warmer + 2 (+ 1) °C maximum + 7 °C maximum + 2 °C Table 11 Maximum ventilation exhaust air available [m 3 /h], 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 Table 12 European reference heating season under average, colder and warmer climate conditions for heat pump space heaters and heat pump combination heaters bin j T j [°C] Average climate conditions Colder climate conditions Warmer climate conditions H j [h/annum] H j [h/annum] H j [h/annum] 1 to 8 –30 to –23 0 0 0 9 –22 0 1 0 10 –21 0 6 0 11 –20 0 13 0 12 –19 0 17 0 13 –18 0 19 0 14 –17 0 26 0 15 –16 0 39 0 16 –15 0 41 0 17 –14 0 35 0 18 –13 0 52 0 19 –12 0 37 0 20 –11 0 41 0 21 –10 1 43 0 22 –9 25 54 0 23 –8 23 90 0 24 –7 24 125 0 25 –6 27 169 0 26 –5 68 195 0 27 –4 91 278 0 28 –3 89 306 0 29 –2 165 454 0 30 –1 173 385 0 31 0 240 490 0 32 1 280 533 0 33 2 320 380 3 34 3 357 228 22 35 4 356 261 63 36 5 303 279 63 37 6 330 229 175 38 7 326 269 162 39 8 348 233 259 40 9 335 230 360 41 10 315 243 428 42 11 215 191 430 43 12 169 146 503 44 13 151 150 444 45 14 105 97 384 46 15 74 61 294 Total hours: 4 910 6 446 3 590 Table 13 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 14 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 Table 15 Water heating load profiles of combination 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 15 Water heating load profiles of combination 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 15 Water heating load profiles of combination 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