Vitocrossal 300

Our most powerful gas condensing boiler

The powerful Vitocrossal 300 is designed for flexible use in the medium output range. With an output range of 87 to 1400 kW, it is an efficient solution for heating in apartment blocks, as well as in public and commercial buildings.

  • Large

    Residential

  • Large

    Commercial

  • Powered by

    Gas

  • Up to

    1400 kW

  • Colour touchscreen

    Display

  • Exceptional

    Efficiency

  • Long

    Service life

  • Made in

    Germany

  • Converts up to 98 percent of the energy used into heat
  • Smooth stainless steel heat exchanger surfaces create self-cleaning effect
  • Two return connectors for hydraulic connection optimised for condensing technology
  • Stainless steel Inox-Crossal heat exchanger ensures high operational reliability and a long service life
  • Alternatively with ELCO or Weishaupt pressure-jet gas burner
  • Single boiler systems up to 1400 kW

Key Benefits

Vitocrossal 300

Gas condensing boiler Vitocrossal 300 Type CR3B

The Vitocrossal 300 CR3B is a gas condensing boiler delivering an output of 787 to 1400 kW. As a single boiler system, it is Viessmann's most powerful heating centre.This makes it just as suitable for residential complexes as for local heating networks, larger public and commercial buildings and industrial plants.

The Vitocrossal 300 is supplied with a pressure-jet gas burner from either ELCO or Weishaupt.

The design of the heat exchanger in the Vitocrossal 300 enables high output levels, yet retaining modest dimensions and a low weight.

To facilitate handling, the condensing boiler can be delivered in two sections.

Comfortable and powerful Vitotronic control

The Vitotronic control system with a large colour touch display allows fast commissioning by means of an assistance function as well as simple operation. Via the integrated LAN interface, the boiler can be directly connected to the Internet for remote monitoring. The Vitosoft 300 service tool communicates directly via WLAN. Energy consumption can be easily viewed via the control energy cockpit.

Vitotronic control

Vitocrossal 300 CT3B - top quality for commercial enterprises and municipal authorities

The burner delivers an output of up to 314 kW and adjusts its heat generation from 30 to 100 percent as required, to save energy. Further features include particularly quiet, economical and environmentally responsible operation.

Alternatively, the boiler is also available factory fitted with ELCO or Weishaupt pressure-jet gas burners.

The design of the heat exchanger in the Vitocrossal 300 enables high output levels, yet retaining modest dimensions and a low weight.

To facilitate handling, the condensing boiler can be delivered in two sections.

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Product Data

Brochure | Oil and gas for medium to high outputs

Commercial Oil & Gas

Variants

VITOCROSSAL 300 Type CR3B

VITOCROSSAL 300 Type CR3B

VITOCROSSAL 300 Type CR3B

Output (kW)

VITOCROSSAL 300 Type CR3B

787 to 1400 kW

Standard seasonal efficiency [to DIN]

VITOCROSSAL 300 Type CR3B

98 % (Hs) [gross cv] / 109 % (Hi) [net cv]

Fuel

VITOCROSSAL 300 Type CR3B

Natural Gas & LPG

Application range

VITOCROSSAL 300 Type CR3B

Large residential buildings, commerce, municipal offices, new build and modernisation projects

Operation

VITOCROSSAL 300 Type CR3B

High performance Vitotronic 300 control unit, can regulate up to four boilers with modulating boiler water temperature, and systems with one or two heating circuits with optional mixer.

DHW heating

VITOCROSSAL 300 Type CR3B

Additional DHW cylinder(s) required, resulting in a high level of DHW convenience

Additional features

VITOCROSSAL 300 Type CR3B

Alternatively with third party pressure-jet gas burner

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  • Large

    Residential

  • Large

    Commercial

  • Powered by

    Gas

  • Up to

    311 kW

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