Does anyone know what the temp difference should be between input and
output (register closest to evaporator) air for a properly sized and
properly functioning residential central a/c?

Does 20F - 25F sound reasonable 10 minutes after turning the unit on
in the morning after being off all night? Note: condenser is in the
shade.

The above temp diff looks good to me, but I wanted to get some other
opinions.
--
To email me directly, remove CLUTTER.