Question

why can't be air conditioners placed on the ground level?​

Answer 1

Answer:

If AC is placed on ground , the air on the bootom gets cold and heavy and the hot air above remains warm. but when AC is  placed above, air above is cooled and sinks while hot air rises and this cycle continues

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Answer 2

If such units are placed on the floor, the cold supply air will accumulate near the floor, causing overcooling of the feet. At the same time, the warmer air at the higher body level will have difficulty returning back to the air conditioner at lower level, causing insufficient cooling at the body level.

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