Heating with air and geothermal heat - Viessmann
Heating with air and geothermal heat - Viessmann
Heating with air and geothermal heat - Viessmann
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20/21VITOCAL 343-GVITOCAL 333-G NCVITOCAL 333-GSystem solutions for detached housesVitocal 333-G, compact brine/water <strong>heat</strong> pump <strong>with</strong> DHW cylinderVitocal 333-G NC, including all components for natural coolingVitocal 343-G, generally including the option to connect to a solar thermal systemThe Vitocal 343-G <strong>and</strong> Vitocal 333-Gwere developed as compact <strong>and</strong> highlyefficient solutions for new build. As part ofthis development, generously sized <strong>heat</strong>exchangers have been integrated to enable ahigh COP (COP = coefficient of performance)of 4.7 to be achieved, in accordance <strong>with</strong>EN 14511, <strong>with</strong> brine 0 °C/water 35 °C.The seasonal performance factor specifiesthe relationship between the <strong>heat</strong> volume(<strong>heat</strong>ing energy) transferred <strong>and</strong> the energy(drive energy) supplied, over the course of ayear. The innovative RCD (Refrigerant CycleDiagnostic) system played a vital role in theimprovement of the seasonal performancefactor. This system enables a highly precise<strong>and</strong> rapid control of the refrigerant circuitvia an electronic expansion valve. TheRCD system ensures that the <strong>heat</strong> pumpoperates <strong>with</strong> optimum efficiency at everyoperating point.With solar cylinder or natural coolingVitocal 343-G is designed for the connectionof a solar thermal system for DHW <strong>heat</strong>ing. Agenerously sized solar cylinder <strong>with</strong> 220 litrecapacity <strong>and</strong> a solar control unit have beenintegrated into the appliance for this purpose.In the compact Vitocal 333-G, a DHW cylinder<strong>with</strong> 170 litre capacity ensures a convenientsupply of DHW. To help cool you down onhot summer days, the Vitocal 333-G is alsoavailable in a version <strong>with</strong> an integral naturalcooling function.EHPA quality seal as proof ofthe COP, for subsidy accordingto the German marketincentive programmeIn addition, energy saving, high efficiencypumps for the brine <strong>and</strong> <strong>heat</strong>ing circuitsensure very low consumption costs <strong>and</strong>therefore a high seasonal performance factorin all three output sizes.
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