Vitocrossal 300 type CM3

Gas Condensing Boiler

Vitocrossal 300, type CM3, gas condensing boiler with rated heat output: 87 – 142 kW.

Rated heat output: 87 – 142 kW
Standard seasonal efficiency [DIN] up to 98% (Hs) [gross cv].
Low-noise, eco-friendly operation
Self-cleaning effect

Your local Viessmann sales partner will provide you with individual advice

Gas Condensing Boiler

87 – 142 kW

Standard Seasonal Efficiency [DIN]

Up to 98% (Hs) [gross cv].

Self-cleaning effect

Thanks to the smooth stainless steel surface

High operational reliability and long service life

Thanks to the corrosion-resistant Inox-Crossal stainless steel heat exchanger

Clean combustion

Due to the low load of the combustion chamber and the co-flow design of the chamber

Available with ELCO or Weishaupt gas burner with gas pressure jet

Available Former Jobs

Easy manoeuvring

Thanks to the split design

Two mating connectors

For a hydraulic connection optimized for condensing technology

Color Touch Screen

Easy-to-operate Vitotronic control unit with colour touch screen

Built-in LAN interface

For Internet connection and built-in WiFi for service interface

Vitocrossal 300 CM3 – Universal use in the medium power range

Find out more about the Vitocrossal series

Reliable condensing technology

The Vitocrossal 300 is a gas condensing boiler with an Inox-Crossal heat exchanger and a MatriX IR torch.

It is versatile for operation in the medium power range from 87 to 142 kW. It can be used for heating apartment buildings, as well as public, industrial and commercial buildings.

Due to the vertically arranged heat exchange surfaces, the condensation heat of the flue gases is used most intensively. As a result, up to 98 percent of the energy used is converted into heat.

The Vitocrossal 300 boiler is equipped with a MatriX IR burner when supplied, and also comes with the possibility of installing ELCO or Weishaupt gas fan burners.

User-friendly Vitotronic controller

The user-friendly Vitotronic controller offers advantages for both the plant user and the heating industry: The control menu has a logical and clear structure and high contrast, is illuminated and easy to read.

The help function informs you about further data entry steps if necessary. The graphic display of the control panel also serves to indicate the heating and energy efficiency curves of the connected solar system.

Subsidy options

UNDER CONSTRUCTION

Product details

Power in kW (modulated)	29 – 142 kW
Standard Seasonal Efficiency [DIN]	98 % (Hs)/109 % (Hi)
Energy efficiency class	–
Fuel	Natural gas
Applications	Apartment building, industry, utilities, new building and modernization
Service	Powerful Vitotronic 300-K regulator, which allows you to control four boilers with a reduced boiler water temperature, as well as to install one or two heating circuits with a mixer (optional). Individual boilers are controlled by Vitotronic 100 or 200 regulators.
Hot water supply	An additional capacitive water heater (one or more) is required to provide greater comfort for the hot water supply
Other features	MatriX MatriX Modulated Burner with Long Modulation Range
Product cross-section

ServiceConnect Commercial

The innovative service concept gives Viessmann’s sales partners an additional advantage when working with commercial customers and local authorities thanks to complete service from a distance.