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The split pressurized solar water heater system is made up of solar collector, pressurizedwater tank, pump working station, expansion vessel, stainless steel frameand whole kit of stainless of steel fasteners. This kind of systems fluid circulatesbetween the solar collector and the storage cylinder. The fluid is purewater or glycol (mixed with food quality anti freeze, it's optional.) and is pressurized.They are usually more expensive than compact systems but generally moreefficient. The systems are often easier to retrofit than compact systems becausetheir storage tanks do not need to be installed above or close to the collectors.Specification1)Water Tank(100L-500L): porcelain enamel 2)Intelligent Controller: SR868C3 3)Pump Station: German Made Wilo RS15/6 with 3 speed4)Heating Pipe: ZC tube with Al-N-Al absorber or RS tube with high efficiencyabsorber 5)Manifold : Aluminum Alloy6)Built-in electrical back up: 1.5kw/2.5kw,with thermostat