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standard rating conditions indicated in Table 3 depending of the heat source and heat sink. Standard rating conditions indicated in Table 14 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of multisplit air conditioners. For reverse cycle units, the heating capacity and the efficiency class shall be determined from one of the standard rating conditions indicated in Table 13. A.2.3 Single-duct air conditioners Standard rating conditions “single-duct” indicated in Table 4 shall be used to determine the energy efficiency class of single-duct units. The cooling capacity, EER and the annual energy consumption shall be determined from the application rating conditions “single-duct” indicated in Table 4. A.2.4 Water-cooled air conditioners (water-to-air conditioners) Standard rating conditions “comfort” indicated in Table 6 shall be used to determine the cooling capacity, the EER, the annual energy consumption and the efficiency class of split and packaged water-cooled air conditioners. For reverse cycle units, the heating capacity and the efficiency class shall be determined from one of the standard rating conditions indicated in Table 5 depending of the heat source: water, brine or close loop. EN 14511-2:2004 (E) 13 A.2.5 Other appliances Water-cooled multisplit to which Table 2.1 of Annex IV of Directive 2002/31/EC refers are not covered by EN 14511. Single-duct units operating in the heating mode to which Table 3.3 of Annex IV of Directive 2002/31/EC refers are not covered by EN 14511. A.3 Test procedure When the present standard is used for the energy labelling of air conditioners and heat pumps below 12 kW, the cooling / heating capacities, power input and EER/COP as well as the energy efficiency class of a product shall be determined by using exclusively the calorimeter room method. 洁净网 For ducted units, the settings of the air flow rate and external static pressure shall be made prior to the cooling / heating capacity tests, according to EN 14511-3:2004, 4.4.1. Once determined, the external static pressure shall be maintained constant during the capacity tests, by adjusting to the air discharge area of the unit, a length of duct equipped with a damper which position shall not be changed during the capacity tests. The length of duct and the distance of the damper from the discharge section of the unit shall be conform to the requirements of EN 14511-3:2004, B.2.1. A.4 Tolerances permitted on declared values A.4.1 General The following requirements apply to the declared values. The requirements for the uncertainties of measurement of 4.3 of EN 14511-3:2004 shall be respected. A.4.2 First testing The performance published data shall be accepted as valid when a sample of a model, tested in accordance 洁净网 with the present standard, shall meet the following criteria for cooling and heating mode as applicable: Tested cooling and heating capacity ³ 0,88 X declared capacity (责任编辑：admin) |
