CAME OUT ON A ESTIMATE ON 4TON SYSTEM. INSTALLED A 4TON PREM FURN/EVAP/HP W/ T-STAT ECOBEE & UV. MADE SURE SYSTEM WAS INSTALLED PROPERLY. CHECK ALL ELECTRICAL CONNECTIONS, CHECK VOLTAGE AND AMPERAGE ON MOTORS, CHECK COMPRESSOR DELAY SAFETY CONTROLS. CHECK THERMOSTAT. MADE SURE WORK AREA WAS CLEAN WHEN FINISH. EVERYTHING IS RUNNING GREAT.