RFD SIGHT GLASS DETAIL

CLEAR (or empty)

STATIONARY BUBBLES

FOAM (low charge)

PROPER CHARGE AMOUNT

THE DC 5000 SYSTEM IS DESIGNED TO HOLD 24 OUNCES. THIS IS EQUAL TO 2 CANS OF R-134a AS SUPPLIED WITH THE SYSTEM. THIS IS THE MAXIMUM CHARGE. The sight glass must clear by the time the return line to the compressor goes below 32 degrees F.

GENERAL INFORMATION

Operating pressures will vary with, water temperature, and water flow. Generally, the discharge pressure will peak with a warm plate in five minutes. Increasing pressure indicates an overcharge or no water flow. The suction pressure will drop to 25 psi at a noticeable rate, and will then drop one pounds every two minutes or faster. The 1/2" suction line will freeze and after extended operation the suction pressure will rest at about zero psi. Suction pressure will drop more rapidly when the sea water is cold. A vacuum will be indicated sooner. A deep vacuum indicates the V/U is frozen or plugged. Failure to "pull down" indicates the V/U is malfunctioning or flooding.

The compressor case and motor will feel warm.

The V/U has been operated prior to shipment. There are no field superheat adjustments.

SPECIAL NOTE

WE DO NOT RECOMMEND charging SEA FROST gear with bulk cylinders since it is hard to determine how much refrigerant has been installed. The feed pressure with a bulk cylinder can be higher which may cause skipping through the condenser, causing bubbles in the sight glass. However, if bulk cylinders are used, keep the suction feed pressure below 20 psi and add vapor only.

R-134a will become cloudy and indicate similar foaming in the sight glass as the pressure on the discharge side of the systems becomes too great. Adding charge to clear this condition will damage the compressor. See pages 37-38 for operating pressure trend charts.

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Sea Frost DC 5000 installation instructions Proper Charge Amount, General Information, Special Note
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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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