When people go to buy AC in the market, there are many questions in their mind. One of these is how much star rating AC to buy. Many people say that one star AC consumes more power than two-star AC, and five stars AC consumes the least power.
In such a situation, it is necessary to know what is the meaning of these star ratings. This energy works on the formula of energy efficiency. It is fixed on the cooling output and power input in AC. For example, a one-ton AC consumes 3516 watts per hour.
The energy efficiency ratio determines the rating.
Every AC has an Energy Efficiency Ratio (EER) written on it. If EER is written on an AC from 2.7 to 2.9, it is a one-star rating, 2.9 to 3.09 two stars, 3.1 to 3.29 three stars, 3.3 to 3.49 four stars, and above 3.5 it is a 5-star rating. There will be AC. The cooling output and input power of the AC should be calculated for the energy efficiency ratio. This can be checked while buying the AC, which is written on the plate. If you divide the power input into the cooling output, the rating will come out.
In this way, know the rating of AC.
AC since all ACs are of one ton and their cooling output is 3516 watts. This output will give the division of the input. For example, if an AC takes 1250 watts of input power, then if you divide 1250 in 3516, the result is 2.00. If you see it in the EER table, then 2.00 will be found in a one-star rating. Hence this AC is of a one-star rating.
Similarly, if the input power of AC is 11750 watts, then dividing by 3516 will give 2.99. Looking at the table, the rating from 2.9 to 3.09 is in the two-star rating, and it will be of AC to star rating. In this way, the rating of all-stars can be extracted.
The less input power the AC takes, the higher will be its star rating. The power consumption increases with the input power itself. Therefore, AC with a higher rating consumes less.