For this job, I was performing routine maintenance on a AC and condenser. Static pressure looked good filter was dirty but we swapped it out. Temperature difference was good with a split of 20° outdoor condensing unit looks good refrigerant levels and pressures are well within the green and I cleaned out the unit to ensure better efficiency. The only thing the system could really used to increase Efficiency is some insulation around the exposed ductwork on the supply side of the system in the basement and a surge protector. thank you for choosing LBA! - Walker