The refrigerant (freon) in any air conditioner should last the life of the unit. If not, you have a leak.
It is 3 hours from Houston to Central America. I am not sure how far from KC to Houston.
the distant from Houston tx to Costa Rica Central America
When well-maintained it can last for ten years.
Yes, a central air conditioner can be installed in a house that currently uses room air conditioners as long as there is a place to put the fan outdoors.
10 years
Yes, as long as it a gas system and not a electric heat pump system
No, the air conditioner would not last long at it would be running too slow.
15 yrs
Typically 7 to 10 years now days could be more could be less
In excess of 60 years
It doesn't last very long, about the same as temporary dye which is 1-2 washes. It depends on what type marker you use