ANNEX IIISupplementary provisions
ANNEX III Measurement and calculation 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 other reliable, accurate and reproducible method, which takes into account the generally recognised state-of-the-art methods. They shall fulfil the conditions and technical parameters set out in points 2 to 8. 2. General conditions for measurements and calculations: (a) For the purposes of the calculations set out in points 3 to 8, consumption of electricity shall be multiplied by the conversion coefficient CC of 2,5; (b) Emissions of nitrogen oxides shall be measured as sum of nitrogen monoxide and nitrogen dioxide, and expressed in nitrogen dioxide equivalents; (c) For heat pumps equipped with supplementary heaters, the measurement and calculation of rated heating capacity, seasonal space heating energy efficiency, sound power level and emissions of nitrogen oxides shall take account of the supplementary heater; (d) A heat generator designed for an air heating product, or a housing to be equipped with such a generator shall be tested with an appropriate housing or generator, respectively; (e) A cold generator designed for a cooling product, or a housing to be equipped with such a generator shall be tested with an appropriate housing or generator, respectively. 3. Seasonal space heating energy efficiency of warm air heaters: (a) The seasonal space heating energy efficiency η s,h shall be calculated as the seasonal space heating energy efficiency in active mode η s,on which includes consideration of the seasonal thermal energy efficiency η s,th , the envelope loss factor F env and the emission efficiency η s,flow , corrected by contributions accounting for heat output control, auxiliary electricity consumption, vented flue losses and ignition burner power consumption P ign (if applicable). 4. Seasonal space cooling energy efficiency of comfort chillers and air conditioners when driven by electric motors: (a) For the purposes of the measurements of air conditioners the indoor ambient temperature shall be set at 27 °C; (b) While establishing the sound power level, the operating conditions shall be the standard rating conditions set out in Table 16 (air-to-air heat pumps and air conditioners), Table 17 (water/brine to-water comfort chillers), Table 18 (air-to-water comfort chillers), Table 19 (water/brine-to-air heat pumps and air conditioners); (c) The active mode seasonal energy efficiency ratio SEER on shall be calculated on the basis of the part load for cooling P c (T j ) and the bin-specific energy efficiency ratio EER bin ( T j ), and weighted by the bin-hours the bin conditions occurs, taking into account the following conditions: (1) the reference design conditions set out in Table 24; (2) the European average cooling season set out in Table 27; (3) if applicable, the effects of the degradation of the energy efficiency caused by cycling depending on the type of control of the cooling capacity; (4) the reference annual cooling demand Q C , shall be the design cooling load P design,c multiplied by the equivalent active mode hours for cooling H CE as set out in Table 29; (5) the annual energy consumption for cooling Q CE shall be calculated as the sum of: (i) the ratio of the reference annual cooling demand Q C and the active mode energy efficiency ratio SEER on ; and (ii) the energy consumption during thermostat-off, standby, off and crankcase heater mode during the season; (6) the seasonal energy efficiency ratio SEER shall be calculated as the ratio of the reference annual cooling demand Q C and the reference annual energy consumption for cooling Q CE ; (7) the seasonal space cooling energy efficiency η s,c shall be calculated as the seasonal energy efficiency ratio SEER divided by the conversion coefficient CC , corrected by contributions accounting for temperature control and, for water/brine-to water comfort chillers, or water/brine-to-air air conditioners only, the electricity consumption of ground water pump(s); (d) For multi-split air-to-air air conditioners the measurement and calculations shall be based on the performance of the outdoor unit, with a combination of indoor unit(s) recommended by the manufacturer or importer. 5. Seasonal space cooling energy efficiency of comfort chillers and air conditioners using internal combustion engine: (a) The seasonal space cooling energy efficiency η s,c shall be calculated on the basis of the seasonal primary energy ratio in cooling mode SPER C , corrected by contributions accounting for temperature control and, for water/brine-to-water comfort chillers, or water/brine-to-air air conditioners only, the electricity consumption of ground water pump(s); (b) The seasonal primary energy ratio in cooling mode SPER C shall be calculated on the basis of seasonal gas utilisation efficiency in cooling mode SGUE C , the seasonal auxiliary energy factor in cooling mode SAEF C taking into account the conversion coefficient for electricity CC ; (c) The seasonal gas utilisation efficiency in cooling mode SGUEC shall be based on the part load for cooling P c ( T j ) divided by the bin-specific gas utilisation efficiency for cooling at partial load GUE c,bin , weighted by the bin-hours the bin conditions occurs, using the conditions set out in point 5(h); (d) The SAEF C shall be based on the reference annual cooling demand Q C and the annual energy consumption for cooling Q CE ; (e) The reference annual cooling demand Q C shall be based on the design cooling load P design,c multiplied by the equivalent active mode hours for cooling H CE as set out in Table 29; (f) The annual energy consumption for cooling Q CE shall be calculated as the sum of: (1) the ratio of the reference annual cooling demand Q C and the seasonal auxiliary energy factor in cooling mode in active mode SAEF c,on ; and (2) the energy consumption during standby, thermostat-off, off and crankcase heater mode during the season; (g) The SAEF c,on shall be based (insofar as relevant) on the part load for cooling P c ( T j ) and the auxiliary energy factor in cooling mode at partial load AEF c,bin , weighted by the bin-hours the bin conditions occurs using the conditions set out below; (h) The conditions to calculate the SGUE c and the SAEF c,on shall take into account: (1) the reference design conditions set out in Table 24; (2) the European average cooling season set out in Table 27; (3) if applicable, the effects of the degradation of the energy efficiency caused by cycling depending on the type of control of the cooling capacity. 6. Seasonal space heating energy efficiency of electric heat pumps: (a) For the purposes of the measurements of heat pumps the indoor ambient temperature shall be set at 20 °C; (b) While establishing the sound power level, the operating conditions shall be the standard rating conditions set out in Table 16 (air-to-air heat pumps), Table 19 (water/brine-to-air heat pumps); (c) The active mode seasonal coefficient of performance SCOP on shall be calculated on the basis of the part load for heating P h (T j ), the electric back-up heating capacity elbu ( T j ) (if applicable) and the bin-specific coefficient of performance COP bin (T j ) and weighted by the bin-hours the bin conditions occurs, and shall take into account: (1) the reference design conditions set out in Table 24; (2) the European ‘average’ heating season set out in Table 26; (3) if applicable, the effects of the degradation of the energy efficiency caused by cycling depending on the type of control of the heating capacity; (d) The reference annual heating demand Q H shall be the design heating load P design,h multiplied by the equivalent active mode hours for heating H HE set out in Table 29; (e) The annual energy consumption for heating Q HE shall be calculated as the sum of: (1) the ratio of the reference annual heating demand Q H and the active mode seasonal coefficient of performance SCOP on ; and (2) the energy consumption for thermostat-off, standby, off and crankcase heater mode during the season; (f) The seasonal coefficient of performance SCOP shall be calculated as the ratio of the reference annual heating demand Q H and the annual energy consumption for heating Q HE ; (g) The seasonal space heating energy efficiency η s,h shall be calculated as the seasonal coefficient of performance SCOP divided by the conversion coefficient CC , corrected by contributions accounting for temperature control and for water/brine-to-air heat pumps only, the electricity consumption of ground water pump(s); (h) For multi-split heat pumps the measurement and calculations shall be based on the performance of the outdoor unit, with a combination of indoor unit(s) recommended by the manufacturer or importer. 7. Seasonal space heating energy efficiency of heat pumps using internal combustion engine: (a) The seasonal space heating energy efficiency η s,h shall be calculated on the basis of the seasonal primary energy ratio in heating mode SPER h , corrected by contributions accounting for temperature control and, for water/brine-to-water heat pumps only, the electricity consumption of ground water pump(s). (b) The seasonal primary energy efficiency ratio in heating mode SPER h shall be calculated on the basis of seasonal gas utilisation efficiency in heating mode SGUE h , the seasonal auxiliary energy factor in heating mode SAEF h taking into account the conversion coefficient for electricity CC . (c) The seasonal gas utilisation efficiency in heating mode SGUE h shall be based on the part load for heating P h ( T j ) divided by the bin-specific gas utilisation efficiency when heating at partial load GUE h,bin , weighted by the bin-hours the bin conditions occurs, using the conditions set out below; (d) The SAEF h shall be based on the reference annual heating demand Q H and the reference annual energy consumption for heating Q HE ; (e) The reference annual heating demand Q H shall be based on the design heating load P design,h multiplied by the annual equivalent active mode hours H HE as set out in Table 29; (f) The annual energy consumption for heating Q HE shall be calculated as the sum of: (1) the ratio of the reference annual heating demand Q H and the seasonal auxiliary energy factor in heating mode in active mode SAEF h,on ; and (2) the energy consumption during thermostat-off, standby, off and crankcase heater mode during the designated season; (g) The SAEF h,on shall be based (insofar as relevant) on the part load for heating P h ( T j ) and the auxiliary energy factor in heating mode at partial load AEF h,bin , weighted by the bin-hours the bin conditions occurs using the conditions set out below; (h) The conditions to calculate the SGUE h and the SAEF h,on shall take into account: (1) the reference design conditions set out in Table 24; (2) the European average heating season set out in Table 26; (3) if applicable, the effects of the degradation of the energy efficiency caused by cycling depending on the type of control of the heating capacity. 8. General conditions for measurements and calculations of high temperature process chillers For establishing the values of rated and declared cooling capacity, power input, energy efficiency ratio and the seasonal energy performance ratio, measurements shall be done using the following conditions: (a) the reference ambient temperature at the outdoor side heat exchanger shall be 35 °C for air-cooled high temperature process chillers and 30 °C water inlet temperature to the condenser (rating point with 35 °C outdoor air temperature) for water-cooled high temperature process chillers (b) the outlet temperature of the liquid at the indoor side heat exchanger shall be 7 °C dry bulb temperature; (c) the variations of the ambient temperature throughout the year, representative of average climate conditions in the European Union, and the corresponding number of hours when these temperatures occur, shall be as set out in Table 28; (d) the effect of the degradation of energy efficiency caused by cycling depending on the type of capacity control of the high temperature process chiller shall be measured or a default value shall be used. Table 16 Standard rating conditions for air-to-air heat pumps and air conditioners Outdoor side heat exchanger Indoor side heat exchanger inlet dry bulb temperature °C inlet wet bulb temperature °C inlet dry bulb temperature °C inlet wet bulb temperature °C Heating mode (for heat pumps) Outside air/recycled air 7 6 20 15 max Exhaust air/outdoor air 20 12 7 6 Cooling mode (for air conditioners) Outside air/recycled air 35 24 ( *1 ) 27 19 Exhaust air/recycled air 27 19 27 19 Exhaust air/outdoor air 27 19 35 24 Table 17 Standard rating conditions for water/brine-to-water comfort chillers Outdoor side heat exchanger Indoor side heat exchanger inlet temperature °C outlet temperature °C inlet temperature °C outlet temperature °C Cooling mode water-to-water (for low temperature heating applications) from cooling tower 30 35 12 7 water-to-water (for medium temperature heating applications) from cooling tower 30 35 23 18 Table 18 Standard rating conditions air-to-water comfort chillers Outdoor side heat exchanger Indoor side heat exchanger inlet temperature °C outlet temperature °C inlet temperature °C outlet temperature °C Cooling mode air-to-water (for low temperature applications) 35 — 12 7 air-to-water (for medium temperature applications) 35 — 23 18 Table 19 Standard rating conditions for water/brine-to-air heat pumps and air conditioners Outdoor side heat exchanger Indoor side heat exchanger inlet temperature °C outlet temperature °C inlet dry bulb temperature °C inlet wet bulb temperature °C Heating mode (for heat pumps) water 10 7 20 15 max brine 0 – 3 ( *2 ) 20 15 max water loop 20 17 ( *2 ) 20 15 max Cooling mode (for air conditioners) cooling tower 30 35 27 19 ground coupled (water or brine) 10 15 27 19 Table 20 Reference ambient temperatures for high temperature process chillers Test point Part load ratio of high temperature process chillers Part load ratio (%) Outdoor side heat exchanger (°C) Indoor side heat exchanger Evaporator inlet/outlet water temperatures (°C) Fixed outlet A 80 % + 20 % × ( T A - T D )/( T A - T D ) 100 Inlet air temperature 35 12/7 Inlet/outlet water temperatures 30/35 Table 21 Part load conditions for air conditioners, comfort chillers and heat pumps Rating point Outdoor temperature Part load ratio Outdoor side heat exchanger Indoor side heat exchanger Air-to-air air conditioners T j (°C) Outdoor air dry bulb temperatures (°C) Indoor air dry bulb (wet bulb) temperatures (°C) A 35 100 % 35 27 (19) B 30 74 % 30 27 (19) C 25 47 % 25 27 (19) D 20 21 % 20 27 (19) Water-to-air air conditioners Rating point T j (°C) Part load ratio Cooling tower or water loop application inlet/outlet temperatures (°C) Ground coupled application (water or brine) inlet/outlet temperatures (°C) Indoor air dry bulb (wet bulb) temperatures (°C) A 35 100 % 30/35 10/15 27 (19) B 30 74 % 26/ ( *3 ) 10/ ( *3 ) 27 (19) C 25 47 % 22/ ( *3 ) 10/ ( *3 ) 27 (19) D 20 21 % 18/ ( *3 ) 10/ ( *3 ) 27 (19) Air-to-water comfort chillers Rating point T j (°C) Part load ratio Outdoor air dry bulb temperatures (°C) Fan coil application inlet/outlet water temperatures (°C) Cooling floor application inlet/outlet water temperatures (°C) Fixed outlet Variable outlet ( *3 ) ( *3 ) A 35 100 % 35 12/7 12/7 23/18 B 30 74 % 30 ( *3 ) /7 ( *3 ) /8,5 ( *3 ) /18 C 25 47 % 25 ( *3 ) /7 ( *3 ) /10 ( *3 ) /18 D 20 21 % 20 ( *3 ) /7 ( *3 ) /11,5 ( *3 ) /18 Water-to-water comfort chillers Rating point T j (°C) Part load ratio Cooling tower or water loop application inlet/outlet temperatures (°C) Ground coupled application (water or brine) inlet/outlet temperatures (°C) Fan coil application inlet/outlet water temperatures (°C) Cooling floor application inlet/outlet water temperatures (°C) Fixed outlet Variable outlet ( *3 ) ( *3 ) A 35 100 % 30/35 10/15 12/7 12/7 23/18 B 30 74 % 26/ ( *3 ) 10/ ( *3 ) ( *3 ) /7 ( *3 ) /8,5 ( *3 ) /18 C 25 47 % 22/ ( *3 ) 10/ ( *3 ) ( *3 ) /7 ( *3 ) /10 ( *3 ) /18 D 20 21 % 18/ ( *3 ) 10/ ( *3 ) ( *3 ) /7 ( *3 ) /11,5 ( *3 ) /18 Air-to-air heat pumps Rating point T j (°C) Part load ratio Outdoor air dry bulb (wet bulb) temperatures (°C) Indoor air dry bulb temperature (°C) A – 7 88 % – 7(– 8) 20 B + 2 54 % + 2(+ 1) 20 C + 7 35 % + 7(+ 6) 20 D + 12 15 % + 12(+ 11) 20 E T ol depends on T ol T j = T ol 20 F T biv depends on T biv T j = T biv 20 Water/brine-to-air heat pumps Rating point T j (°C) Part load ratio Ground Water Brine Indoor air dry bulb temperature (°C) Inlet/outlet temperatures (°C) Inlet/outlet temperatures (°C) A – 7 88 % 10/ ( *3 ) 0/ ( *3 ) 20 B + 2 54 % 10/ ( *3 ) 0/ ( *3 ) 20 C + 7 35 % 10/ ( *3 ) 0/ ( *3 ) 20 D + 12 15 % 10/ ( *3 ) 0/ ( *3 ) 20 E T ol depends on T ol 10/ ( *3 ) 0/ ( *3 ) 20 F T biv depends on T biv 10/ ( *3 ) 0/ ( *3 ) 20 Table 22 Part load conditions for SEPR calculation for air-cooled high temperature process chillers Rating point Part load ratio of high temperature process chillers Part load ratio (%) Outdoor side heat exchanger Indoor side heat exchanger Inlet air temperature (°C) Evaporator inlet/outlet water temperatures (°C) Fixed outlet A 80 % + 20 % × ( T A - T D )/( T A - T D ) 100 35 12/7 B 80 % + 20 % × ( T B - T D )/( T A - T D ) 93 25 ( *4 ) /7 C 80 % + 20 % × ( T C - T D )/( T A - T D ) 87 15 ( *4 ) /7 D 80 % + 20 % × ( T D - T D )/( T A - T D ) 80 5 ( *4 ) /7 Table 23 Part load conditions for SEPR calculation for water-cooled high temperature process chillers Rating point Part load ratio of high temperature process chillers Part load ratio (%) Water-cooled condenser Indoor side heat exchanger Inlet/outlet water temperatures (°C) Outdoor air temperature (°C) Evaporator Inlet/outlet water temperatures (°C) Fixed outlet A 80 % + 20 % × ( T A - T D )/( T A - T D ) 100 30/35 35 12/7 B 80 % + 20 % × ( T B - T D )/( T A - T D ) 93 23/ ( *5 ) 25 ( *5 ) /7 C 80 % + 20 % × ( T C - T D )/( T A - T D ) 87 16/ ( *5 ) 15 ( *5 ) /7 D 80 % + 20 % × (T D -T D )/(T A -T D ) 80 9/ ( *5 ) 5 ( *5 ) /7 Table 24 Reference design conditions for comfort chillers, air conditioners and heat pumps Function Season Reference design temperature dry bulb (wet bulb) T design,c Cooling Average 35 (24) °C Reference design temperature Bivalent temperature maximum Operation limit temperature maximum T design,h T biv T ol Heating Average – 10 (– 11) °C + 2 °C – 7 °C Warmer 2 (– 1) °C 7 °C 2 °C Colder – 22 (– 23) °C – 7 °C – 15 °C Table 25 Standard rating conditions for fan coil units Cooling test Heating test Sound power test Air temperature 27 °C (dry bulb) 19 °C (wet bulb) Air temperature 20 °C (dry bulb) At ambient conditions without water flow Inlet water temperature 7 °C Inlet water temperature 45 °C for 2-pipe units 65 °C for 4-pipe units Water temperature rise 5 °C Water temperature decrease 5 °C for 2-pipe units 10 °C for 4-pipe units Table 26 European heating seasons for heat pumps bin j T j (°C) H j (h/annum) Warmer Average Colder 1 to 8 – 30 to – 23 0 0 0 9 – 22 0 0 1 10 – 21 0 0 6 11 – 20 0 0 13 12 – 19 0 0 17 13 – 18 0 0 19 14 – 17 0 0 26 15 – 16 0 0 39 16 – 15 0 0 41 17 – 14 0 0 35 18 – 13 0 0 52 19 – 12 0 0 37 20 – 11 0 0 41 21 – 10 0 1 43 22 – 9 0 25 54 23 – 8 0 23 90 24 – 7 0 24 125 25 – 6 0 27 169 26 – 5 0 68 195 27 – 4 0 91 278 28 – 3 0 89 306 29 – 2 0 165 454 30 – 1 0 173 385 31 0 0 240 490 32 1 0 280 533 33 2 3 320 380 34 3 22 357 228 35 4 63 356 261 36 5 63 303 279 37 6 175 330 229 38 7 162 326 269 39 8 259 348 233 40 9 360 335 230 41 10 428 315 243 42 11 430 215 191 43 12 503 169 146 44 13 444 151 150 45 14 384 105 97 46 15 294 74 61 Total hours: 3 590 4 910 6 446 Table 27 European cooling season for comfort chillers and air conditioners Bins Outdoor temperature (dry bulb) ‘Average cooling season’ EER calculation bin hours j T j h j # °C h/annum 1 17 205 EER(D) 2 18 227 EER(D) 3 19 225 EER(D) 4 20 225 D — Measured value 5 21 216 Linear interpolation 6 22 215 Linear interpolation 7 23 218 Linear interpolation 8 24 197 Linear interpolation 9 25 178 C — Measured value 10 26 158 Linear interpolation 11 27 137 Linear interpolation 12 28 109 Linear interpolation 13 29 88 Linear interpolation 14 30 63 B — Measured value 15 31 39 Linear interpolation 16 32 31 Linear interpolation 17 33 24 Linear interpolation 18 34 17 Linear interpolation 19 35 13 A — Measured value 20 36 9 EER(A) 21 37 4 EER(A) 22 38 3 EER(A) 23 39 1 EER(A) 24 40 0 EER(A) Table 28 European reference refrigeration season for high temperature process chillers bin j T j (°C) H j (h/annum) 1 – 19 0,08 2 – 18 0,41 3 – 17 0,65 4 – 16 1,05 5 – 15 1,74 6 – 14 2,98 7 – 13 3,79 8 – 12 5,69 9 – 11 8,94 10 – 10 11,81 11 – 9 17,29 12 – 8 20,02 13 – 7 28,73 14 – 6 39,71 15 – 5 56,61 16 – 4 76,36 17 – 3 106,07 18 – 2 153,22 19 – 1 203,41 20 0 247,98 21 1 282,01 22 2 275,91 23 3 300,61 24 4 310,77 25 5 336,48 26 6 350,48 27 7 363,49 28 8 368,91 29 9 371,63 30 10 377,32 31 11 376,53 32 12 386,42 33 13 389,84 34 14 384,45 35 15 370,45 36 16 344,96 37 17 328,02 38 18 305,36 39 19 261,87 40 20 223,90 41 21 196,31 42 22 163,04 43 23 141,78 44 24 121,93 45 25 104,46 46 26 85,77 47 27 71,54 48 28 56,57 49 29 43,35 50 30 31,02 51 31 20,21 52 32 11,85 53 33 8,17 54 34 3,83 55 35 2,09 56 36 1,21 57 37 0,52 58 38 0,40 Table 29 Operational hours per functional mode for comfort chillers, air conditioners and heat pumps Season Operational hours On-mode Thermostat Off mode Standby mode Off mode Crankcase heater mode H CE (cooling); H HE (heating) H TO H SB H OFF H CK Cooling (to calculate SEER ) Average 600 659 1 377 0 2 036 Colder 300 436 828 0 1 264 Warmer 900 767 1 647 0 2 414 Heating only (to calculate SCOP ) Average 1 400 179 0 3 672 3 851 Colder 2 100 131 0 2 189 2 320 Warmer 1 400 755 0 4 345 5 100 Heating, if reversible (to calculate SCOP ) Average 1 400 179 0 0 179 Colder 2 100 131 0 0 131 Warmer 1 400 755 0 0 755 ( *1 ) The wet bulb temperature condition is not required when testing units which do not evaporate condensate. ( *2 ) For units designed for heating and cooling mode, the flow rate obtained during the test at standard rating conditions in cooling mode is used. ( *3 ) Outlet temperatures dependent on water flow rate as determined at standard rating conditions (100 % part load ratio when cooling, 88 % when heating) ( *4 ) With the water flow rate determined during ‘A’ test for units with a fixed water flow rate or with a variable flow rate. ( *5 ) With the water flow rate determined during ‘A’ test for units with a fixed water flow rate or with a variable flow rate.