Removed and discarded the old condenser. Furnished and installed new 2 stage 18 seer Amana condenser on a new pad. Performed a nitrogen leak and vacuum test. Both checked out good. Changed the system up with R410A. Rewired the disconnect whip with all low voltage wiring to the control board. Programmed the thermostat to communicate with the new system. Frank offered David a 30% discount for the acid wash needed on another condenser, to be performed at a later date for being a valued customer. Weather was raining and uncooperative today.c