Where are the air-conditioned rooms in hotels?

Central air-conditioned rooms are usually designed to be placed in the basement. Because the cold water main engine is very heavy, if it is located on the floor of a building, the floor resistance should be considered.

The other is that when the main engine is running, it is easy to crack the floor due to vibration and produce * * * vibration noise.

Therefore, putting the air-conditioned room in the basement can reduce the disadvantages of climbing trees.