The installation only requires a small 3 inch hole in a wall to get the tubing from the outdoors and into the house.
Upstairs airconditioning unit separate in attic.
A drain pan with a separate drain a separate drain pan can sit underneath the unit and this drain pan needs to have its own separate drain line.
Well mainly it s a way to save space.
Attic hvac systems save space.
This not only improves comfort but can also enable you to save money on utility bills.
With separate central air conditioning units for each floor of your home you can maintain a comfortable temperature for each defined space.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Install a zoning system.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Good luck getting better cooling in the upstairs in an old home using a basement hvac system than one in an attic.
Regardless of the air handler type you choose a separate compressor unit is installed outside to power the indoor unit.
This pan needs to be at least 1 1 2 deep.
Sure if you can find enough space and afford the large cost to have someone poorly carve up the inside of your house to get the proper sized ductwork through the house.
Quit writing papers and go try a seat of your pants experiment.
With a single non zoned air conditioning unit you have to keep every area cool at the same time.