Sea Frost DC 5000 installation instructions Discharging the System, Troubleshooting, Corrected

Page 33

DISCHARGING THE SYSTEM

Before the connections or components can be disassembled, the refrigerant must be recovered with a reclaiming machine. Connect a gauge set to the suction access port and slowly recover the refrigerant. Keep the pressure under 20 psi. Do not loosen any connections until the system holds 10 inches of vacuum for 10 minutes.

To discharging an overcharged system; recover at the same 20 psi rate for a minute at a time between test operations. Be sure the gauge hand wheel is off before starting the compressor.

TROUBLESHOOTING

The most common problems that can occur in a SEA FROST DC 5000 system are:

1.Low voltage which can cause premature motor brush wear and commutator damage.

2.Loss of refrigerant charge resulting from leaks.

3.Moisture or dirt plugging the valve.

4.Compressor malfunction due to loss of refrigerant charge.

5.High pressure cut out from loss of water flow.

6.High pressure cut out from over charging.

STEP 1. Gather information as to the nature of the problem before operating the system. A leak often leaves a trace of oil. Inspect fittings, components, and tubing for wear, corrosion, and chafe. Do not operate the compressor until trouble is

corrected.

High pressure cut-out is indicated when the compressor and indicator lamp turn off after starting a warm system, if the cooling water is not flowing. Reset the high-pressure cutout switch. If water flow is not at fault then discharge some refrigerant. (See Discharging the System) The compressor should not be operated while discharging into a reclaiming machine. This is a trial and error procedure until the compressor stays on. Check the sight glass for proper charge. Be sure the sight glass still clears. Hold the receiver or liquid line from the condenser to the RFD, If the boat is in 80 degree F. water these parts should be warm but not hot to the touch, in a properly operating system.

For further troubleshooting, attach purged gauges to access service ports or observe the temperature of the lines. See pages 37-38 for operating pressure trends.

a)If the icebox and SEA FROST plate is warm and pressure readings are below 50 psi with the compressor off (in 50 degree F or higher ambient conditions), pressurize the system with R-134a and leak-check.

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Contents DC 5000 System 134a Start UP Procedure and Periodic Inspection RFD Sight Glass Detail Compressor at onceTable of Contents General Description Suggestions ICE Making MaintenanceHarvesting Vertical Trays Storage of ICE CubesHOW Refrigeration Works CleaningTube Handling Installation ~ Work HabitsTube Cutting Installing the DC 5000 Compressor UnitTube Bending FIT RFD LastPage Plate Location About the PumpValve Unit V/U Drawing Reconnecting PRE-SWAGED Fittings Running the Lines Swagelok PerformancePositioning the RFD PlanningHelpful Tools Line Connection PlanRFD Receiver Filter Drier Mounting the RFDInsulating the Lines Cable Ties To leave a sharp end on the cable tieElectrical System Electrical Junction BOX Thermostat Control Panel LocationWire Sizes Ground Wire WiringAssembly Inspection Check List FusesGeneral Safety this is IMPORTANT. Read this Refrigerant Handling and SafetyDisclaimer RefrigerantAccess to the System Service Access Ports Procedures for Working with R-134aGauges 134a Service Connecting ValvesDisconnecting Gauges Connecting GaugesTapping a can of Refrigerant Venting the Gauge SETVenting the Charge Hose Liquid or VaporEvacuation Leak Test Commissioning Procedure Evacuation with a Vacuum PumpNEW System Charging Introducing Initial Charge Leak CheckingTo Leak Check with Bubbles Leak Checking a Charged System About PressuresTo Leak Check with AN Electronic Detector If a Leak is DetectedNEW System Charging Reading the Sight Glass Proper Charge Amount General InformationSpecial Note Troubleshooting Discharging the SystemCorrected Page Toll Free in the United States CANADA, and Caribbean Pressure Charts Pressure Charts Pressure Charts DC 5000 Motor and Water Pump Maintenance LubricationBrushes Leeson Motor March Water Pump DC5000 Wiring DC 5000 Layout DC 5000 Water Circuit Twin Valve Systems only

DC 5000 specifications

The Sea Frost DC 5000 is a cutting-edge refrigeration system designed for marine and offshore applications. Known for its reliability and efficiency, the DC 5000 offers superior cooling solutions that are essential for preserving food and other perishable materials on boats and yachts.

One of the standout features of the Sea Frost DC 5000 is its dual refrigeration capability. The system can operate both as a freezer and a refrigerator, allowing users to tailor their cooling requirements based on their specific needs. This flexibility is particularly advantageous for marine environments where space is limited, and energy efficiency is critical.

The DC 5000 is powered by advanced technology that includes a high-efficiency compressor. This compressor is designed to provide powerful cooling while consuming minimal energy, making it ideal for use in remote locations where power resources may be scarce. Coupled with an innovative digital thermostat, the system allows for precise temperature control, ensuring that food remains at optimal storage conditions.

In terms of build quality, the Sea Frost DC 5000 features robust construction that is resistant to the harsh marine environment. It is engineered with high-grade materials that can withstand exposure to saltwater and humidity, reducing the risk of corrosion and ensuring a long service life. This durability is complemented by a compact design that comfortably fits in various spaces on a vessel without compromising usability.

Furthermore, the Sea Frost DC 5000 incorporates a user-friendly interface, providing sailors and boaters with an easy way to monitor and adjust the cooling settings. The system is designed for low noise operation, allowing for a serene onboard experience without the distraction of excessive sound.

A significant advantage of the Sea Frost technology is its ability to run effectively off both AC and DC power, providing flexibility and adaptability in power source selection. This feature ensures that users can always keep their perishables cool, whether docked at a marina or cruising offshore.

Overall, the Sea Frost DC 5000 stands out as an exemplary refrigeration solution for marine use. Its combination of advanced technology, durability, energy efficiency, and user-friendliness make it an essential component for anyone looking to maintain food quality and safety while at sea.
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