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Type M238 / High-pressure hot water boiler

Rated output: 3.5 to 16.2 MW

Vitomax 200 is an oil or gas fired high-pressure hot water boiler for permissible flow temperatures in excess of 120°C, permissible operating pressures of 6.5 to 25 bar – i.e. a standard boiler for district heating and industrial applications.

The Vitomax 200-HW benefits at a glance:

• High level of operational reliability and a long service life are assured through wide water galleries and wide spaces between hot gas pipes. The clearance between hot gas pipes exceeds the minimum requirements of the applicable current (national) directives. This results in Viessmann boilers achieving the maximum permissible test periods. In addition, the large water content provides excellent natural circulation and a reliable heat transfer under all operating conditions.
• Three-pass boiler for clean combustion with low nitrogen oxide emissions
• Economical energy consumption – boiler efficiency without Eco up to 92 %. Substantial increase in the boiler efficiency right into the condensing range through flue gas/water heat exchangers downstream of the boiler
• Low radiation losses through 120 mm thick composite insulation and insulated flue gas collector
• Approval according to the European Pressure Equipment Directive 97/23/EC or according to country-specific regulations
• Low pressure drop on the hot gas side through convection heating surfaces with generously sized hot gas pipes
• High level of serviceability through water-cooled reversing chambers without firebrick lining – large cleaning doors
• Removable burner trolley for boilers up to 2500 kW available as accessory for easier maintenance and simplified burner adjustment
• Walk-on cover on top of the boiler as part of the standard delivery – this simplifies the installation and maintenance and protects the thermal insulation against accidental damage
• An intermediate flow piece for the integration of measuring, control and safety fittings is part of the standard delivery
• The Vitocontrol control panel enables the regulation of all boiler-specific control equipment. In addition, suitable components provide operation without need for permanent supervision, a fully automatic boiler operation with 24 or 72 hour supervision-free operation in accordance with country-specific conditions.