Page 40: of Marine News Magazine (August 2013)

systems innovative risers offer the option to elevate the unit above the mounting surface to provide excellent water drainage and protect the coil from debris and saltwater. The unit incorporates a scroll compressor which reduces noise and vibration of the system. The units also use the environmentally-friendly 410A or 417A refrigerant. Several features were already incorporated in the design of the unit to ensure additional durability. The DuraSea resists corrosion with copper tube and aluminum-? nned coils with a dipped coating that exceeds the 6,000-hour salt-spray test. The DuraSea also features corrosion-resis- tant stainless-steel fasteners and all other external compo-nents have a protective coating. The units control box and compressor are strategically located within a recess in the cabinet to ensure easy access and provide further resistance against salt water intrusion and corresponding corrosion. Additional features ? based on client requirements ? included a suction accumulator (for storing the needed refrigerant when the linesets are long), crankcase heater (for cold weather conditions) and low ambient fan cycle control (to temporarily shut the fan off so that the head pressure will build in the system to keep the refrigerant ? owing). Other items added to the standard units for this project were drain holes in the base, a gasket on the outer panel, a grating cover over the fan, a shrink tube over the pressure switches, watertight electrical contact, pin type or lug connectors and sealed ferrules. It was also agreed to add a phase monitor as an extra cost item to provide an alert following an incorrect electricity connection. Key Bene? ts COLLABORATION IS THE KEYCollaboration with builders and the client from an early stage was a key factor in producing this custom OSV solu- tion. National OEM Sales Director, Dometic Marine, Ed Todd, told MarineNews in July, Dometic was chosen for Designed for workboats, plat-form, and military vessels.Operates with most evaporators. Hermetically-sealed scroll compressor w/overload pro- tection.Brass base valves w/sweat connections/service ports. High-ef? ciency copper tube, aluminum ? n coil w/dipped E-coating that exceeds 6,000-hour salt spray test.Vertical fan mount design. Optional risers elevate unit to protect coil from salt water, debris (3 to 6-ton models only).High- and low-pressure controls. Copper tube/copper ? n coil upgrade available for the ulti-mate in corrosion protection. Heavy-duty contactor with lug connections.Permanently lubricated fan motor w/Ingress Protection of IP 54 or better. Optional stainless-steel 316 cabinet.Ed Todd, National OEM Sales Director, Dometic MarineDan Wilday, Vice President of Engineering and Sales, LemoineAugust 201340 MNMN August2013 Layout 32-49.indd 407/24/2013 11:34:47 AM