Preformed the 2 system maintenance. Found the upstairs unit to be within specifications. The downstairs system is out of specifications for alot of components. It's also missing 1/5 of the r22 freon. Due to all this and with the attic being mostly insulated I highly recommend upgrading the unit to a 95 percent furnace with an erv upgrade to get the upmost efficiency. Doing this will create a drastic difference in electrical usage for the house as well as increase the life span of systems.