The new VD2A series of the Vitorond 200 commercial oil-/gas-fired sectional cast iron boiler from Viessmann offers proven technology with enhanced performance and a competitive price. Therm-Control low-temperature protection is now integrated, eliminating the need to add this component during installation.  The return water distribution system has also been redesigned for increased reliability and long-life operation. The boiler uses a triple-pass heat exchanger surface for operation with modulating water temperatures. The rated input is 144 to 1285 kW. Approved for Category I and III Venting Systems.

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