EMCOR Group - - Responsibilities: Install new HVAC units and related components (brazing, line sets, refrigerant charge).; Perform start-up, testing, and commissioning on various commercial HVAC equipment (RTUs, Air Handlers, VAVs, Fan Coil units, swamp coolers).; Perform preventative maintenance (vacuuming, cleaning, changing filters, oiling parts).; Test lines and connections for leaks and repair defective joints using brazing/soldering as needed.