Removed old equipment and installed new Rheem 2 ston a/c with 90%+ gas furnace. Installed new supply plenum, new return plenum with 16x25x4 filter, new emergency drain pan, new pan safety switch, new drain line safety switch, new thermostat and new 8” return. Reconnected high voltage, low voltage, drain line, gas line, vent pipe and all duct work. Tested system operations in heating and cooling.