SA 3 134a - Sea Frost Refrigeration

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CONTENTSSA-III OPERATION 3ICE MAKING 4MAINTENANCE 5-6INSTALLATION 7-8SWAGELOK FITTINGS 9-11INSTALLATION INSTRUCTIONS 12VALVE UNIT 13RECEIVER FILTER DRYER (RFD) 13-14THERMOSTAT & WIRING 14-15REFRIGERANT HANDLING 16GAUGES 18LEAK CHECKING 21-22NEW SYSTEM CHARGING 23-24CHECKING THE CHARGE/ADDING CHARGE 26TROUBLESHOOTING 27-29WATER CIRCUIT DWG 30SA-III LAYOUT DWG 312
SA-III OPERATIONThe SEAFROST SA-III system is an electrically driven refrigeration plant. Operationof the compressor will freeze the contents of the holdover plates in the boat's iceboxproviding refrigeration by cold holdover for an extended period after the compressor hasbeen turned off. A boat without continuous power can benefit from this by operating theSEA FROST SA-III system when the generator plant is operated. Operation time willvary with each boat.A little time-spent learning about your system and some experimentation will beadvantageous. Maximum holdover will be reached when the cabinet is at the desiredtemperature and the holdover plates are frozen. Running times beyond this have noadvantage other than to delay warming the plates.The SA-III is water-cooled. Water should begin to flow from the discharge at thesame time the unit starts. Be sure the water is flowing. If no water flows, stop thesystem and inspect the water pump and strainer for obstructions. (See troubleshooting and maintenance sections.)After starting a warm system check the holdover devices for a temperature drop. If atemperature drop is not indicated, stop the unit and read Checking The Charge andReading The Sight Glass.CONTROLSThe SA-III thermostat control is labeled with off, one, two, and three snowflakes.When the boat’s breaker panel is switched on and 110-volt power is available, turningthe knob from "off" to one snowflake will start the compressor. Turning the knob tothree snowflakes will increase the time the compressor operates, making thetemperature cooler. Experiment with the control position to obtain the best setting.3
Page 1: 148 OLD CONCORD TURNPIKE BARRINGTON
Page 6 and 7: It is IMPORTANT that NO WATER flows
Page 9 and 10: NOTES ON SWAGELOK FITTINGSSwagelok
Page 11: * SWAGELOK FITTINGS ARE TO BE TIGHT
Page 14 and 15: The RFD is a reservoir for excessre
Page 16 and 17: REFRIGERANT HANDLING AND SAFETYDo n
Page 18 and 19: ACCESS TO THE SYSTEM: SERVICE PORTS
Page 20 and 21: Disconnecting the gauge set on a st
Page 22 and 23: LEAK CHECKINGLeak checking is a ver
Page 24 and 25: READING THE SIGHT GLASSA clear sigh
Page 26 and 27: CHECKING THE REFRIGERANT CHARGEPERI
Page 28 and 29: a) If the refrigerator box and SEA
Page 30 and 31: WATER CIRCUIT30
Page 32 and 33: 148 OLD CONCORD TURNPIKE BARRINGTON

SA 3 134a - Sea Frost Refrigeration

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