Vitocrossal 300 CA3B

CA3B Series high-efficiency, gas-fired condensing boiler with Inox-Lamellar heat exchanger surface made of high-grade stainless steel. Rated input: 2500 to 6000 MBH.

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Product Description

Our most powerful gas condensing boiler

With its unique synthesis of proven Viessmann technology and innovative features, the Vitocrossal 300 CA3B takes a bold step forward while retaining the superior Viessmann quality you know and trust.  The boiler combines unparalleled flexibility with maximum efficiency, making it your ideal choice for a new installation or economical retrofit in multi-family, commercial or light industrial applications.

Benefits at a glance

  • NEW Easy-to-remove front door allows for reduced clearances and simplifies installation insmaller spaces.
  • NEW Easy changeover from NG to LP at the simple turn of a key (Dual Fuel model boilers only)
  • NEW Burners and supply header can be easily removed to facilitate transportation throughsmaller doorways
  • Low emissions and quiet operation from fully-modulating Viessmann pre-mix cylinder burners (up to 3)
  • Total burner modulation turndown ratio of up to 16:1 precisely matches load per boiler
  • The fully assembled boiler simplifies installation and commissioning
  • Flexibility for venting through the sidewall or chimney applications and combustion air options of sealed combustion or room dependent
  • Common venting up to four boilers
  • Easy changeover from NG to LP with a simple turn of a key (Dual Fuel models)
  • Low inlet gas pressure capability as low as 4″ w.c. (NG) for compatibility with a range of supply pressures
  • Large water content extends burner run time and reduces cycling
  • No dedicated boiler pump required due to extremely low water pressure drop through heat exchanger
  • Vitotronic 300 GW6C can be used as a single boiler control or as a cascade primary/secondary control system
  • Seamless integration with building management systems

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