Complete 1 System 2 Zones Ametican Standard HP Split System. Came to replace compressor. Recovered refrigerant. Removed old compressor and filter dryer. Installed new compressor and filter dryer. Leak tested. Pulled vacuum. Added 8 lbs of 410A. Tested system. Contactor was not working properly. Bad contactor. Was making a very loud noise. Replaced contactor with a single pole contactor from truck stock. HO was interested on giveing maintenance to system. Sold him an EPA. HO wants to get pay the epa monthlt. Checked pressures. System is running great at this time.