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2Copyright: Chart Industries, Inc., Jan. 2003 <br />System Overview <br />The MVE Carbo-Max 750 ‘High Flow’ bulk carbon <br />dioxide (CO2) system is designed for low pressure <br />storage and supply of carbon dioxide gas for beverage <br />carbonation, brewing, beer dispensing, ph control in <br />swimming pools, and other purposes. The system <br />consists of three primary elements: the CO2 storage <br />vessel, CO2 fi ll box, and the fi ll and vent hoses. <br />Installation <br />The Carbo-Max 750 can only be operated as a <br />stationary system. The system is comprised of the <br />permanently installed vessel, an outdoor-mounted CO2fi ll box, and the connecting fi ll and vent hoses. The fi ll <br />hose and vent line join the vessel to the outdoor fi ll box. <br />The fi ll box allows the CO2 supplier to fi ll the vessel <br />from outside the building. The delivery process takes <br />only about 10-15 minutes and does not interrupt the <br />CO2 user’s operations. Note: The Carbo-Max 750 bulk <br />CO2 storage vessel is not DOT regulated and must not <br />be transported when it contains liquid CO2. <br />Storage Vessel <br />The vessel component in a Carbo-Max 750 CO2 storage <br />system consists of an inner vessel and an outer vessel, <br />much like a ThermosTM bottle. The space between the <br />two vessels contains a nearly perfect vacuum and a <br />II General Description <br />special insulation. The vacuum and insulation minimize <br />the entry of unwanted heat into the liquid CO2 stored in <br />the inner vessel. When CO2 gas is needed, liquid CO2 <br />is withdrawn from the inner vessel, converted to gas and <br />dispensed to the beverage system or other use point. <br />Vessel Plumbing <br />Plumbing components on the Carbo-Max 750 vessel <br />perform six functions: <br />Liquid CO2 fi ll <br />Gas supply (Gas Use) <br />Liquid supply (Liquid Use) <br />Pressure control (Economizer) <br />Safety vent or pressure relief (Sure-Fill & Vent) <br />Pressure and contents measurement (Gauges) <br />Fill Circuit <br />The fi ll circuit allows liquid CO2 to be transferred into <br />the vessel during the delivery process. It consists of a <br />brass fi ll fi tting in the fi ll box, a fi ll hose, a valve on the <br />vessel, and MVE’s patented Sure-Fill assembly. <br />Liquid CO2 is transferred into the vessel through the <br />brass fi ll box fi tting and the fi ll hose. The shut-off valve <br />on the vessel’s fi ll port allows service to be performed <br />on the fi ll-box / fi ll-line segment of the fi ll circuit <br />without emptying the vessel.