QTY. 1. AMERICAN THERMAFLO CO. THERMAFLOW OZ SAVER LIGHT. MODEL: 3030, S/N: 93036-7, SERIES 4000 REFRIGERANT RECOVERY / CHARGING UNIT, 230VAC, 50HZ, 8AMP, 1840WATTS, APPROVED FOR RECOVERY OF R12, R22, R134A, R500, AND R502, THIS RECOVERY AND CHARGING UNIT IS A HYBRID PUMPING SYSTEM CAPABLE OF MOVING REFRIGERANT LIQUID AND GAS FROM * REFRIGERANT SYSTEMS BEING SERVICED TO A RECOVERY TANK * RECOVERY TANK TO SYSTEM BEING SERVICED, * NEW TANK TO SYSTEM BEING SERVICED, * ONE UNIT TO ANOTHER, THE HEART OF THE OZ SAVER LIGHT IS A COMPRESSOR DESIGNED TO OPERATE WITHOUT OIL IN ITS CRANKCASE. THE COMPRESSOR IS A PATENTED DIRECT DRIVE STYLE UNIT WHICH CAN OPERATE FROM 20 INCHES OF HG TO 125 PSIG OF INLET PRESSURE, THE MAXIMUM DISCHARGE PRESSURE SWITCH IS SET AT 425 PSIG, WHEN EXCEEDED UNIT WILL SHUT DOWN. INCLUDES OPERATING MANUAL .PDF.