Removed old equipment and installed new 2 stage 2.5 ton heat pump with 3 ton 2 stage air handler. Installed new emergency drain pan, new pan safety switch, new coil safety switch, new condensation pump, new thermostat, new 16x20x1 filter rack with filter, and new composite pad for outdoor unit. Reconnected supply plenum, high voltage, low voltage and lineset. Tried testing system operations, breaker on outdoor unit has gone bad and not supplying proper voltage to unit. Unit will need new breaker.