Dometic, Isotherm, Norcold, NovaKool, Ocean Breeze, Technautics Cool Blue, Technicold, U-Line and Vitrifrigo marine refrigeration systems
Aqua-Air, Cruisair, Flagship Marine, Marine Air, Ocean Breeze and Technicold marine air conditioning systems
We understand the importance of you, your guests, passengers or crew being comfortable onboard. We also understand the importance of keeping provisions fresh, too. Moxy Marine Services’ ABYC certified, manufacturer trained and certified and EPA licensed technicians will diagnose, repair, rebuild or refit your vessel (recreational or commercial) with the proper HVAC or refrigerator/freezer system.
Based in Charleston, SC, we are licensed, fully insured and have authorized access to all area marinas and boatyards. In addition, we travel to any port of call for major climate control and refrigeration projects.
Contact us for more information.
REFRIGERATION AND HVAC SYSTEMS:
12-volt DC (battery powered) systems are best on boats that do not have generators. They are self contained, but require thru-hulls and discharges, power supply, insulation and ducting.
Self contained units contain the condenser, evaporator and fan in the unit. The condenser can be air cooled or water cooled, which requires a 5/8″ non-insulated water supply. Self contained refrigerators and freezers are popular with recreational boaters as the units are only slightly larger than the evaporators of the split systems and the fan coils of the chiller systems.
In split systems, the condenser and fans are separate from the evaporator and connected by long runs of insulated, copper refrigerant tubing. The biggest disadvantages of this type of system are the long runs of tubing, which can develop pinhole leaks, and the units require periodic charging by a licensed professional. The advantages of a split system are: it is quiet and occupies less space as the compressor is housed outside of the living quarters.
Direct expansion air conditioning systems are the AC equivalent of the split system for refrigerators/freezers. They are composed of two separate elements – a condensing unit, usually mounted in the engine room, and evaporator units installed in living quarters. The condensing unit connects to the evaporator units via insulated, copper refrigerant tubing. The maximum length of tubing between the condenser and air handlers can be as much as 50 feet (15 meters), depending on the unit brand and model. The system is quiet as the condenser is housed away from living areas, typically in the engine room. Also, air handlers are very economical in their space usage. For these reasons, the direct expansion system is recommended for vessels with multiple berths and under 80 feet in length.
Chilled water air conditioning systems are commonly found on very large yachts and ships. The chiller unit is typically placed in the engine room and fan coils (air handlers) are placed strategically throughout the boat. Water is pumped through the chiller through an insulated pipe. The cold water is then constantly pumped in a closed loop throughout the vessel’s air handlers. Controls in each air handler maintain individual room temperature and humidity levels. Chiller systems also provide excellent electrical load management. These systems can have a single compressor, a dual compressor, be semi-hermetic (commercial and industrial applications), and have water cooled, air cooled, or fan coil units.
Need to heat as well as cool? Heat strips installed in the air handlers or evaporators save space, reduce maintenance and allow independent temperature control for each interior space.