STARTING & STOPPING OF FRESH WATER GENERATOR ON BOARD

STARTING OF FRESH WATER GENERATOR 

• Open ejector suction valve
• Open overboard valve 
• Start F.W. Generator Ejector pump
• Close vacuum breakers
• Wait for sufficient vacuum (about  92%)
• Slowly open J.C.W inlet and outlet valve
• Slowly close J.C.W. by-pass valve till evaporator shell temprature is reaching a body temperature of +/- 45-50 degree centigrade
• Open ball valve  on sterilizer and start the unit
• If you see fresh water in the inspection glass, start distillate pump
• Open chemical dosing valves
• Switch on Salinity Controller Alarm
• Check level of drinking water tanks

STOPPING OF FRESH WATER GENERATOR

• Switch off Salinity Controller Alarm
• Switch off distillate pump
• Close chemical dosing valve on dosing unit
• Stop the sterilizer and close the ball valve
• Slowly open J.C.W by pass valve completely
• Slowly close J.C.W inlet and outlet valve
• Open vacuum breakers
• Cooling down of the evaporator for a 30mins
• Stop the ejector pump
• Close overboard valve
• Close ejector suction valve