Watt NOTE This applies only to heat recovery liquid chilling packages. 2.26 total power input PT power input of all components of the unit as delivered, expressed in Watt 2.27 effective power input PE average electrical power input of the unit within the defined interval of time obtained from: ¾ power input for operation of the compressor and any power input for defrosting; ¾ power input for all control and safety devices of the unit; and ¾ proportional power input of the conveying devices (e.g. fans, pumps) for ensuring the transport of the heat transfer media inside the unit. It is expressed in Watt 2.28 energy efficiency ratio EER ratio of the total cooling capacity to the effective power input of the unit, expressed in Watt/Watt 2.29 sensible heat ratio SHR ratio of the sensible cooling capacity to the total cooling capacity, expressed in Watt/Watt 2.30 coefficient of performance COP ratio of the heating capacity to the effective power input of the unit, expressed in Watt/Watt 2.31 operating range range indicated by the manufacturer and limited by the upper and lower limits of use (e.g. temperatures, air humidity, voltage) within which the unit is deemed to be fit for use and has the characteristics published by the manufacturer EN 14511-1:2004 (E) 8 2.32 rating conditions standardised conditions provided for the determination of data which are characteristic for the unit, especially: ¾ heating capacity, power input, COP in heating mode; ¾ cooling capacity, power input, EER, SHR in cooling mode. 2.33 defrost mode state of the unit in the heating mode where the operation is modified or reversed to defrost the outdoor heat exchanger 2.34 defrost period time for which the unit is in the defrost mode 2.35 operating cycle with defrost cycle consisting of a heating period and a defrost period, from defrost termination to defrost termination 2.36 temperature of saturated vapour at the discharge of the compressor temperature of saturated vapour/bubble point of the refrigerant corresponding to the discharge pressure of the compressor, measured at the compressor/piping connection 2.37 temperature of the liquid refrigerant temperature of the refrigerant measured at the inlet of the expansion device 2.38 glide difference between dew point temperature and bubble point temperature at a given pressure 2.39 brine heat transfer medium that has a freezing point depressed relative to water 2.40 sound power level LW ten times the logarithm to the base 10 of the ratio of the given sound power to the reference sound power expressed in decibels. The reference sound power is 1 pW (10-12 W) 2.41 standard rating condition mandatory condition that is used for marking and for comparison or certification purposes 2.42 application rating conditions rating conditions which are mandatory if they fall within the operating range of the unit. Results based on (责任编辑：admin) |
