Any type of air conditioner (split system, monoblock, multisplit) is labeled in the factory according to the class of energy consumption. For domestic and industrial air conditioners, the energy classes are different.
Energy labeling for air conditioners
According to the energy consumption class, air conditioners for apartments and offices (household) are divided into 7 classes.
They are indicated by the Latin letters A - G. The most energy-efficient equipment belongs to class A, that is, it consumes less. Class G air conditioners consume the most.
One of the important indicators of energy consumption of air conditioning is the annual consumption. It is calculated as follows:
- the total performance in cooling mode at maximum load is multiplied by 500 (this is the average indicator of the operating time in hours).
Power consumption of air conditioners
The energy efficiency class of an air conditioner is determined by how much electricity it uses. There are two factors by which one can judge the economics of climate technology. The first indicator affecting the energy efficiency class of an air conditioner is refrigeration performance. This is the cooling capacity at maximum load, expressed in kilowatt hours.
The most important indicator of air-conditioning energy consumption is the energy efficiency ratio or EER:
- the indicator of cold productivity is divided by how much electricity the air conditioner consumes.
The lower the power consumption of the air conditioner, the higher the EER:
- Class A - EER above 3.2;
- Class B - EER from 3.2 to 3.0;
- Class C - EER- 3.0 to 2.8;
- Class D - EER - 2.8 to 2.6;
- Class E - EER from 2.6 to 2.4;
- Class F - EER from 2.4 to 2.2;
- Class G - EER up to 2.2.
The above figures are valid only for multisplit - and split systems.
Heat output is important for air conditioners working both for cooling and heating. This is the heating power at maximum load in kilowatt hours. The coefficient of heat production or COP is calculated as follows:
- Heat output divided by an indicator that determines how much electricity the air conditioner consumes.
The higher the indicator, the lower the energy consumption of the air conditioner.
Energy efficiency classes of air conditioners for heating:
- Class A - COP above 3.6;
- Class B - COP 3.6 - 3.4;
- Class C - COP 3.4 - 3.2;
- Class D - COP from 3.2 to 2.8;
- Class E - COP from 2.8 to 2.6;
- Class F - COP from 2.6 to 2.4;
- If the COP value is less than 2.4, class G is assigned.
