DC Genset / Watermaker Manual - Balmar

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Feedwater Temperature Correction Factor40°F (4.44 °C) .37350°F (10°C) .53560°F (15.6°C) .69570°F (21.2°C) .89577°F (25°C) 1.0080°F (26.7°C) 1.0890°F (32.2°C) 1.27100°F (37.8°C) 1.47Properties of Reverse Osmosis WaterThe purpose of a reverse osmosis desalination system is to remove a large percentage ofthe dissolved minerals (salt) in sea or brackish water. Systems operating withinspecification typically will remove at least 98% of the "salt" in seawater, generating productwater with mineral content of less than 750 parts per million.The reverse osmosis process used in the Aqua-Pac can be highly effective at removingbacteria and other pathogens from the feed-water. The degree of effectiveness dependsupon such factors as the age and condition of the semi-permeable membrane and on theconcentrations and types of pathogens contained in the feed-water.The product water from an RO desalination system is typically fed to storage tanks ofunknown sterility where it may sit, stagnant, for weeks at a time before being used.Compounding the problem, storage tanks are sometimes filled by sources other than theRO system.If the water in the storage tanks is to be used for human consumption, Balmarrecommends that steps be taken to ensure that the water does not contain unsafe levelsof pathogens.One method is to chlorinate the water in the storage tanks. Chlorine tablets and chlorineinjection systems are available to treat drinking water. If the water is to be chlorinated,follow the manufacturer's directions precisely.Chlorinating unfortunately does not remove any objectionable tastes or odors that thewater may have absorbed in the storage tanks. The chlorine will actually add taste andodor to the water. Also, the chlorine may react unpredictably with any chemicals, whichmay have gotten into the tank.Balmar offers various post-filters and an ultra-violet sterilizer/ charcoal filter to treat thewater before it goes into the water tank and as it comes out of the water tank. Contact yourdealer for more information.Watermaker InstallationPay particular attention to how the exhaust system will be routed from the engine. Keep inmind that the exhaust tube will probably have to rise higher than the engine so that nowater can enter the engine from the outside.Central Processor Module MountingThe CPM (Control Panel) may be either surface mounted or through a cutout in a bulkhead.Locate a suitable mounting place for the CPM. In order to obtain accurate readings fromthe product flow meter, the CPM must be mounted vertically.- 15 -
Product Water Outlet ConnectionThe product water outlet on the CPM is a barbed fitting for connection to 3 /8" ID hose. Thefitting is attached to the diversion valve that is mounted on the back of the CPM. Theproduct water outlet hose will carry water to the storage tank. Use only food-grade hose(suitable for carrying fluids for human consumption and capable of withstanding workingpressures of 50 PSI). Suitable hose is available from your dealer (P/N 210-005).Route the hose to the water storage tank using the most direct path. Secure the hose soit will not be abraded or pinched. The storage tank must be vented to atmosphere and theproduct-water hose must feed into the top of the tank so that the product water can flowfreely into the tank with no restriction or back pressure. Excessive back pressure willreduce or stop the flow of product water from the CPM.If the top of the storage tank is more than 15 feet above the CPM, a pump will have to beused to help lift the product water. Contact a dealer or the factory for details. Use a 3 /8"hose barb fitting and suitable adapters, if necessary, to connect the product water hose tothe storage tank. These fittings are available from your dealer. Secure the hose to thebarbed fittings using suitable hose clamps.Waste Product Water Outlet ConnectionsOn the Control Panel is a barbed fitting for 3 /8" ID hose. A hose connected to this fittingwill carry rejected product water overboard. Install a suitable discharge fitting above thevessel's water line and connect the 3 /8" ID hose. Secure each hose end with hose clamps.It is very important that no valve be installed in either of these lines since any restrictioncould damage the RO membrane.Input 12VDC Power ConnectionA separate source of 12 VDC power is required for the Aqua-Pac integrated desalinator. Thepower should be a 12 VDC-20 amp circuit protected by a 20-amp circuit breaker. (Thiscircuit is usually connected to the boat's main DC electrical panel).This input power is connected to the "12 VDC IN" terminals on the Pre-Filter Relay Module.Use 12 AWG wire for runs of up to 25 feet. Runs of over 25 feet require 10-gauge wire.Protect the wire feed with a circuit breaker in the positive leg of the feed as close aspossible to the main power panel or bus. Be extremely careful to connect the positive leadto the "+" terminal and the negative lead to the "-" terminal. Label the circuit breaker"DESALINATOR" or "WATERMAKER".Connecting Electrical Control Cable Between CPM and Pre Filter PackA 25' length of 6-conductor cable is supplied for connection between the terminal strip onthe back of the CPM and the junction box on the side of the pre filter pack.Watermaker Pre-Filtration Module InstallationThe Pre-Filtration Module should be mounted slightly above the source level (waterline) onmarine installations since most of the components are made of plastic and failure of acomponent could result in flooding of the vessel.Select a mounting site that will support the weight of the PFM when filled with water, willallow easy access for maintenance, and that will have enough clearance below forremoving and reinstalling the filter bowl. If the top of the PFM has to be mounted more than3 feet above the source level, a feed-water pump will be required or the PFM filter element- 16 -
Page 4: Seawater and Freshwater SupplyINSTA
Page 8 and 9: Key PanelElectrical Connections for
Page 10 and 11: Aqua Pac VoyagerOperations ManualCo
Page 12 and 13: Pressure RegulatorThe Pressure Regu
Page 14 and 15: 5. Start the engine.6. Set the Mast
Page 18 and 19: and high pressure pump seal life wi
Page 20 and 21: High Pressure Inlet ConnectionA spe
Page 22 and 23: Cooling and Lubrication SystemsEngi
Page 25 and 26: system.3. Once the system is in ope

DC Genset / Watermaker Manual - Balmar

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