What does the energy efficiency rating of an air conditioner mean? The relationship between the energy efficiency rating of an air conditioner and the energy efficiency ratio
I. Energy efficiency of an air conditioner What does the ratio mean:
The cooling capacity and cooling power of an air conditioner are two different concepts.
1. Cooling capacity:
The ability of the air conditioner to adjust the room temperature;
2. Refrigeration power:
The power consumption of the air conditioner .
The energy efficiency ratio of the air conditioner = cooling capacity ÷ cooling power
For example, a 2-hp air conditioner with a cooling capacity of 5000 watts and a cooling power of 2000 watts, the energy efficiency ratio: 5000÷2000=2.50.
Another 2 HP air conditioner with a cooling capacity of 5000 watts, cooling power of 1500 watts, energy efficiency ratio: 5000÷1500=3.33.
Second, Relationship between air conditioner energy efficiency grade and energy efficiency ratio:
Constant speed air conditioner
Energy efficiency ratio above 3.40: energy efficiency grade 1.
Energy Efficiency Ratio 3.20~3.39: Energy Efficiency Level 2.
Energy Efficiency Ratio 3.00~3.19: Energy Efficiency Level 3.
Energy efficiency ratio 2.80~2.99: energy efficiency grade 4.
Energy efficiency ratio 2.50~2.79: energy efficiency grade 5.
Inverter air conditioner
Energy efficiency ratio above 5.20: energy efficiency grade 1.
Energy Efficiency Ratio 3.70~4.50: Energy Efficiency Level 2.
Energy efficiency ratio 3.30~3.90: energy efficiency grade 3.
Energy efficiency ratio 3.00~3.40: energy efficiency grade 4.
Energy efficiency ratio 2.80~3.00: energy efficiency grade 5.
According to the above example two 2-horse air conditioners:
The energy efficiency ratio is 3.33 (energy efficiency class 2 When the air conditioner is used for cooling, it moves 3300 watts of heat indoors to the outside to lower the room temperature, and consumes 1000 watts of electricity.
When an air conditioner with an energy efficiency ratio of 2.5 (energy efficiency grade 5) consumes 1,000 watts of electricity, it can only move 2,500 watts of indoor heat to the outside for release.
It can be seen that an air conditioner with an energy efficiency ratio of 3.33 (energy efficiency class 2) saves energy and electricity than an air conditioner with an energy efficiency ratio of 2.5 (energy efficiency class 5).
