b)If the pressure readings are over 50 psi with the compressor off, proceed to check charge level via sight glass and charge if needed. Charge loss indicates a leak that must be corrected.

STEP 2. If the system continues to operate improperly after Step 1, check for moisture or dirt plugging the valve. Run the system, observing closely the gauge readings and plate temperature, noting the following.

a)If system is warm upon start-up, a DIRT-PLUGGED Valve will show an immediate deep vacuum reading on suction side. Consult SEA FROST for cleaning techniques.

b)A MOISTURE-PLUGGED VALVE is indicated by a deep vacuum reading on the suction side after 1 to 5 minutes of operation from warm, followed by any combination of these symptoms:

c)The temperature at the compressor discharge fitting and the copper tube at the top of the condenser drops from hot to warm.

d)The temperature of the suction line from the V/U increases.

e)Moisture enters either through suction side leaks or during initial installation and will freeze at the V/U, reducing or eliminating refrigeration activity. Turning off the system and allowing the V/U to warm to above freezing, and then restarting, may temporarily solve the problem. If not, change the RFD as follows.

STEP 3. To change a saturated RFD, allow the system to warm to ambient temperature, thereby preventing moisture from condensing in the system. A light bulb in the icebox will speed the warming of the plate. WARNING: BEFORE DISASSEMBLY OF ANY PART IN THIS SYSTEM BE SURE THE REFRIGERANT IS COMPLETELY DISCHARGED. With a backup wrench holding the brass body of the Swagelok fittings on the RFD, loosen and back off the nuts. The tubing may be pulled out of the fittings. Remove the RFD and replace only with an identical unit by size and color. The SEA FROST RFD is a drier and also a receiver/filter. The DESICCANT and the oil in the Sea Frost RFD are special to this system and R-134a. Installation of the wrong part or oil may destroy the system.

NOTE: This system contains a measured amount of lubricating oil. Be sure the RFD being installed is a blue SEA FROST Model 24 1/4" x 1/4" RFD.

Follow the "remake" instructions for Swagelok fittings.

Reminder: To ensure removal of system moisture use a high vacuum pump, and evacuate the system with the highest possible ambient and plate temperatures. A light bulb or heat lamp in contact with plate is a good warming technique.

34

Page 33 Page 35
Page 34
Image 34
Sea Frost DC 5000 installation instructions
Page 33 Page 35

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.
Top Page Image Contents