Eli5, Why the lowest (coldest) an Air Conditioner is able to set to, is 16 celcius?

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As the title says, why is that the case? (16 Celsius ~ 60 Fahrenheit)

I’ve read somewhere, that 16c is suppose to be the most efficient / comfortable?

Prob need an AC techie here, but I’ve experienced being in my car during summer & have to hit the “max” button on those really hot days, & it automatically goes straight to high fan setting + 16 celcius.

How come it doesn’t go futher? Like 12 or 10 Celsius?

& I’ve also experienced my home AC, where I’ve set it to 23 celcius, but a larger horsepower (4 or 5hp) & it’s freezing!

Thanks, for the insight 😊

In: Engineering

6 Answers

Anonymous 0 Comments

Mostly because this is considered the optimal balance between cooling efficiency and preventing the unit from freezing.

By taking away heat from the air, an air conditioner lowers its temperature—cooling air below a certain temperature can cause the air conditioner to freeze up, which can damage the unit and make it less efficient. At temperatures below this threshold, the risk of freezing increases, especially if the air conditioner is operated for extended periods.

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