Inverter air-conditioning energy efficiency standards basically completed revision

Since the introduction of fixed-speed air-conditioning energy efficiency subsidies, the voice from manufacturers for "inverter air-conditioning should also be subsidized" has not stopped, because the most prominent advantage of inverter air-conditioning is energy, it can be said that the frequency conversion is due to energy-saving. The revision work of the energy efficiency standard for inverter air conditioners GB21455-2008 "Energy-saving limit value and energy efficiency grade for speed-controlled room air conditioners" has basically come to an end. It has now entered the approval stage and is expected to be implemented in the middle of next year. The new standard defines the heating energy efficiency of inverter air conditioners.

Cheng Jianhong, a researcher at the China National Institute of Standardization, said that the new standards have changed in terms of energy efficiency levels, limit values, and evaluation indicators. The revised limit value of the variable-frequency air conditioner energy efficiency will be increased from the current 3.0 to 3.9, and the market access threshold will also be upgraded from 5 to 3 levels. At the same time, the annual energy consumption efficiency (APF) evaluation index will be introduced. He explained that in the traditional impression, air conditioners are generally used for cooling in summer, and the heating performance is often not taken into account. Therefore, in the old version of the frequency conversion energy efficiency standards, the single- and cold- and warm air-conditioning energy efficiency evaluation indicators are the same. In the newly revised standard, a new APF index was introduced. For the limited value of the energy efficiency of the controlled speed air conditioner, the minimum allowable value of the APF under the condition of the specified working condition, air-conditioning cooling and heating operation should be examined.

According to reports, compared to traditional radiators and electric oil heaters, the use of air-conditioning heat pump heating is a more energy-efficient way, the energy-saving effect is higher than three or four times, so the new standard for air conditioning cooling, heating At the same time, the performance of the air-conditioners throughout the year is presented in response to the operating efficiency of the air-conditioner throughout the year in cooling and heating conditions.

However, under current circumstances, consumers can only judge the heating performance of air conditioners from the information on the air conditioning nameplate. The specific method is to set the rated heating value on the nameplate to the rated heating power value. The larger the value obtained, the more heat the air conditioning unit consumes and the faster the house will be heated. The lower it is.