The air handler unit on my central air conditioning system in Florida is located in a closet that opens to the attic. The air handler is exposed to the attic temperatures (hot) which seems counter intuitive for maximum cooling capability. The cooling coils are bolted to a metal frame that's as hot as the attic.
Should I insulate the closet so the majority of the indoor unit is, truly in cooled indoor space?
What are the pros and cons of my current (typical) setup versus an indoor air handler that resides in the cooled space?