Hotel rooms *generally* have a dedicated unit for each room (thought they can be ‘networked’ into a larger system). That unit is usually powerful enough to do the job.
Where it really matters is that the unit is cooling one room (plus a bathroom) with limited interface with the outside (usually one wall). Cooling one fairly well insulated room doesn’t take all that much effort. It’s a reasonably efficient/powerful A/C cooling a small space, so it doesn’t have a lot of work to do.
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