Comprehensive range. Efficient. Sustainable. New ... - Viessmann

New developments 2011 

Comprehensive range. 

Efficient. 

Sustainable.

New developments 2011 

Dual mode storage combi boilers with solar central 

heating backup 

Dual mode storage combi condensing boilers for solar central 

heating backup are factory-assembled and consequently easy 

to install. Suitable versions are on offer for regions with a 

variable solar yield. 

Automatic hydraulic balancing 

A system based on wireless technology is available for certified 

hydraulic balancing which handles this requirement automatically 

in a fraction of the time usually required. The test report forms 

the basis of the application for KfW subsidies. 

Modular cascade solutions with up to eight appliances 

Pre-assembled cascade modules comprising one or two 

appliances can be assembled into combinations offering various 

output profiles. Up to eight appliances can be installed in series 

or in a space efficient block formation. 

Economical combined heat and power from 1 kW el 

The micro CHP appliance with 1 kW el is the perfect choice for 

supplying heat and generating power for own consumption in 

a detached house. A mini CHP module with 5.5 kWel and a 

full-blown CHP module with 20 kWel are designed for higher 

power and heat demands in apartment buildings and commercial 

enterprises. Exceptionally long service intervals of up to 

6000 hours ensure particularly high economy. 

CHP module and biomethane in a single package – 

even more economical and environmentally responsible 

For the first time, a combined heat and power module is 

offered in conjunction with a supply contract for biomethane. 

Through exporting eco power into the grid, users obtain 

a higher remuneration in accordance with the Renewable 

Energy Sources Act. 

Biomass boiler with unique, two-stage combustion principle 

A new biomass boiler of medium range output can burn either 

woodchips or pellets. The speed of the motorised flat moving 

grate adjusts to dry moist biomass. 

Pages 10, 18 

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Page 93 

Turnkey biogas plants in a modular design 

Biogas plants with CHP modules in a modular design provide 

even smaller agricultural enterprises with solutions for the 

generation of power from biogas that suit their individual 

demand. 

Whisper quiet heat pumps 

With up to 42 dB(A) our heat pumps are as quiet as a fridge. 

They guarantee high COPs of up to 4.9 and flow temperatures 

up to 70 °C. 

Compact heat pumps with solar function 

The compact split heat pumps are now also available with 

an integral solar DHW heating function. These appliances are 

particularly suitable for installation near the living space. 

Standard technology for heat pumps up to 300 kW 

The compact heat pumps up to 300 kW (as cascade up to 

1.2 MW) are manufactured as standard production units. They 

are pre-assembled in the factory and available at short notice. 

The integral energy statement provides evidence for the receipt 

of BAFA subsidies. 

Control with standard user interface 

All Viessmann heat sources from 1.5 to 2000 kW are now 

supplied with standard control technology and user interface. 

Remote control with colour touch panel 

The battery-operated wireless remote control with colour touch 

panel facilitates the convenient control of your heating system 

from the comfort of your armchair. 

Smartphone controls your heating system 

Just download an App and you can control your heating system 

with a smartphone from anywhere in the world. 

2/3

Contents 

6 Introduction 

6 Comprehensive range. Efficient. 

Sustainable. Viessmann 

8 Oil 

12.9 to 100 kW 

10 Vitosolar 300-F 

Storage combi appliance for solar DHW 

heating and central heating backup with 

a wall mounted oil condensing boiler 

12 Vitorondens 222-F 

Oil condensing storage combi boiler 

with DHW cylinder and downstream 

Inox-Radial heat exchanger 

14 Vitorondens 200-T 

Oil condensing boiler with downstream 


16 Gas 

1.9 to 840 kW 


Storage combi appliance for solar DHW 

heating and central heating backup with 

a wall mounted gas condensing boiler 


Gas condensing storage combi boiler 

for solar central heating backup in 

Mediterranean countries 

22 Vitodens 300-W 

Wall mounted gas condensing boiler 

with high operating convenience and 

automatic hydraulic balancing 

24 Automatic hydraulic balancing 

26 Vitocrossal 300 

Gas condensing boiler for utilising 

condensing technology in apartment 

buildings 


Modular cascade system with up to 

eight wall mounted gas condensing 

boilers 


Universal wall mounted gas condensing 

boiler for the world market 

32 Vitopend 111-W 

Gas system boiler with integral 

small DHW cylinder 

34 Oil/gas 

87 to 20,000 kW 

36 Vitocrossal 300 

Gas condensing boiler – the largest – 

made from stainless steel 

38 Vitomax 200-HW 

High pressure hot water boiler for 

district heating plants and industrial 

concerns 

40 Vitomax 300-HS 

High pressure steam boiler with high 

efficiency 

42 Vitomax 200-HS, Vitomax 100-HS 

High pressure boiler for efficient 

steam generation 

44 Vitomax 200-LW, Vitomax 100-LW 

Matching system packs for low 

pressure hot water boilers 

46 Programmable Logic Controls (PLC) 

with easy-to-operate touch panel and 

Graphic interface for Vitomax industrial/ 

commercial boilers 

48 Combined heat and power 

1 to 401 kW el , 6 to 549 kW th 

50 Vitotwin 300-W 

Micro CHP appliance on Stirling basis – 

heat and power for residential buildings 

52 Vitobloc 200, CHP module EM-5,5/12 

mini CHP module with unrivalled 

service interval 

54 Vitobloc 200, CHP module EM-20/39 

CHP module plus condensing technology 

55 Vitotrans 200 AC 

Flue gas/water heat exchanger for five 

versions of CHP modules 

56 Biomethane supply contract 

with attractive remuneration according 

to the Renewable Energy Sources Act

58 Biomass 

4 to 13,000 kW 

60 Vitoligno 300-H 

Pellet and woodchip boiler with high 

efficiency through a rotary combustion 

chamber 

62 EUCOlino 

Small plant for the production of 

biogas in a modular design 

64 Heat pumps 

1.5 to 2000 kW 

Domestic ventilation systems 

66 Vitocal 350-G 

Brine/water heat pump for high DHW 

convenience, prepared for a 

cascade setup 


Brine/water heat pump for maximum 

efficiency, in five stages 


Attractively priced brine/water heat 

pump with high flow temperature 

72 Vitocal 242-S 

Compact split heat pump (air/water) 

with solar function for new build 

and modernisation 

74 Vitocal 222-S 

Efficient and economical compact split 

heat pump (air/water) with integral 

DHW cylinder 


Heat pump with integral energy 

statement 

78 Vitocal 350-HT 

High temperature heat pump for 

DHW heating with natural refrigerant 

80 Vitovent 300-F 

Ventilation tower with up to 93 % 

heat recovery for low energy and 

passive houses 

82 Solar energy 

82 Roof integration 

of solar collectors 

83 Fixing systems 

for solar collectors 

84 DHW cylinders 

84 Vitocell 100-V 

with solar connection set 

86 Vitocell 

Time saving closure system for 

Vitocell thermal insulation 

88 Control technology 

90 Vitotronic 

Standard range of Vitotronic control 

units for heat sources from 1.5 to 

2000 kW 

92 Vitotrol 300 RF 

Convenient operation from the 

living space 

93 Apps 

– Vitotrol App for controlling your 

heating system by smartphone 

– Spare part App for heating 

contractors 

– Energy savings check App for 

everyone 

– Product App with new 

developments and applications 

94 Services 

94 Partnership with excellent 

prospects 

4/5

Introduction 

Comprehensive range. Efficient. Sustainable. 

Viessmann 

Our motto at the ISH Energy 2011 is short 

and sweet: Comprehensive range. Efficient. 

Sustainable. The essence of our product 

range can be described succinctly: 

� It is comprehensive, as it offers individual 

solutions by design and from a single 

source for all fuel types and every 

application area. Irrespective of whether 

for renewables biomass, solar and natural 

heat or for gas and oil. 

No matter whether for detached or 

two-family houses, for large residential 

buildings, for industrial or commercial 

buildings or for local heating networks. 

� It is efficient, as all systems offer a 

maximum level of output, convenience 

and quality, with minimum energy 

expenditure. 

� It is sustainable, as it protects natural 

resources and the environment, and makes 

its own contribution to climate protection.

The challenge: climate protection and 

energy supply 

Climate protection and concerns over future 

security of energy supplies are central 

challenges of our time. 

It is for this reason that measures aimed at 

improving energy efficiency and to extend 

the use of renewables in buildings, which are 

the largest consumers of energy, are not just 

a political aim. System users and investors, 

likewise, share this interest, as they create an 

assurance of supply and reduce running costs. 

Market developments are determined by 

political framework conditions 

At the European level, the Energy Performance 

of Buildings Directive (EPBD) lays down strict 

requirements that must be met by 2020. In 

concrete terms, this means that the passive 

house will become the obligatory standard; 

for buildings in the public domain this already 

applies from 2018. Member states are obliged 

to adopt the EPBD into their national law. 

In Germany, this adoption takes the form of 

a step by step tightening of the Energy Saving 

Ordinance (EnEV). 

In addition, all member states are also going 

to formulate their own requirements for 

existing buildings. In this connection, the 

German Federal Government has already 

presented its energy concept last September, 

which takes a view up to 2050. 

In the long term, even existing buildings 

should become CO2 neutral and be able to 

operate with 20 percent less primary energy 

demand than today. This means that the 

passive house standard will also be applied 

to existing buildings and the residual head 

demand will be covered by renewables. 

Predominantly, power and heat will increasingly 

come together, and decentralised power 

generation in combined heat and power 

systems – including the use of biomass and 

biogas – will grow in importance. 

Release the modernisation backlog 

Our initial task is to release the modernisation 

backlog and to raise the existing minimum 

potential as quickly as possible. 

We see it as our task to make individual 

solutions by design available to our trade 

partners to help them deal effectively with 

the wide range of challenges facing them 

every day. It is for this reason that we, as 

technological pacemakers, propel innovations 

forward in every segment of our industrial 

sector. This is what the Viessmann name 

represents, and also what the names of the 

companies in the Group represent, as they 

are founded on the same pioneering spirit and 

power of innovation. 

Seamless comprehensive range 

Irrespective of whether you are considering 

condensing boilers, solar thermal systems 

or heat pumps, whether combined heat 

and power modules or biogas plants, the 

comprehensive range of products and 

services from Viessmann covers them all. 

Output ranges from 2 kilowatt to in excess 

of 20 megawatt. 

We are extremely highly specialised in all 

these market segments, yet at the same time 

we have a crucial advantage over specialist 

suppliers: We understand heating technology 

as a systematic whole and guarantee 

professional, unbiased advice on technology 

and fuel type. 

Our comprehensive range already offers all 

technical system solutions today that are 

required to meet the political goals, as well 

as the standards set for passive houses. 

At the ISH Energy 2011, Viessmann’s 

comprehensive range includes many 

innovations that will “blaze a trail” into 

the future. This brochure will provide you 

with an initial overview. 

Dr Martin Viessmann 

6/7

New developments – oil 

12.9 to 100 kW

Overview of new developments 

VITOSOLAR 300-F 

Compact appliance for solar DHW heating and central 

heating backup with a Vitoladens 300-W wall mounted 

oil condensing boiler 

12.9 to 23.5 kW 

Standard seasonal efficiency [to DIN]: 

up to 98 % (gross cv)/104 % (net cv) 

Heating water buffer cylinder: 750 litres 

VITORONDENS 222-F 

Storage combi oil condensing boiler with DHW cylinder 

and downstream Inox-Radial heat exchanger 

20.2 to 28.9 kW 



Cylinder capacity: 

130 l (20.2 and 24.6 kW) 

160 l (28.9 kW) 

VITORONDENS 200-T 

Oil condensing boiler with downstream 


20.2 to 53.7 kW 



8/9

Oil condensing boilers 


Compact appliance for solar DHW heating and central heating 

backup with a wall mounted oil condensing boiler 

Powerful and compact heating centre – 

including solar operation 

Vitosolar 300-F is a powerful unit for solar 

central heating backup and DHW heating. This 

unit comprises a 750 l combi cylinder and a 

base unit with all relevant pipework for the 

direct installation of an oil condensing boiler. 

Easy to install – all in one 

The Vitosolar 300-F is factory-prepared for 

trouble-free installation. The mounting panel 

is already pre-assembled with heating circuit 

distributor, Solar-Divicon, thermally insulated 

pipework and shut-off valves. 

Optional connection of a second heating 

circuit distributor. All connections can be 

routed out of the unit to the right or left, 

subject to the space available. In addition, 

the complete thermal insulation and a visually 

appealing casing are part of the standard 

delivery. 

This easy to install solution not only saves 

time, but also offers a high degree of 

engineering and calculation assurance. 

One control unit for all systems 

Contrary to other systems of this kind, the 

Vitosolar 300-F energy centre is supplied with 

just one control unit – the Vitotronic 200. This 

delivers all required functions and is perfectly 

matched to the heat source and the solar thermal 

system. The solar yield is shown on the 

control unit display to assist in collating the 

energy statement. This enables convenient 

operation from one central programming unit. 

Efficient and eligible for subsidies 

In connection with solar central heating 

backup, the requirements specified by the 

Renewable Energies Heat Act and the 

EWärmeG (Baden-Württemberg) are met. 

The investment can be subsidised using 

public BAFA funds. Electricity savings of 

up to 70 percent, compared to conventional 

pumps, are achieved by employing variable 

speed HE pumps (Energy Label A) for both 

the heating and the solar circuit.

Vitosolar 300-F 

1 Combi cylinder 

2 Wall mounted oil condensing boiler 

3 Vitotronic 200 control unit 

4 Connections on the system side 

5 Divicon heating circuit distributor 

6 High efficiency DC pump 


1 


Compact appliance 

Benefits at a glance 

� 750 l combi cylinder for solar central heating backup with fitted boiler 

� Combination with Vitoladens 300-W wall mounted oil condensing boiler 

� Convenient Vitotronic 200 control unit 

for operating the energy centre, including the solar thermal system 

� High engineering assurance and low installation effort through pre-assembled 

and fully wired components 

� Energy efficient HE pumps for solar and heating circuits (Energy Label A) 

� Upgrading an existing system with solar central heating backup 

� Compact dimensions – ideal for new build and modernisation 

� Connections either on the left or right 

� Uniform high grade design 

� Meets statutory requirements in accordance 

with the Renewable Energies Heat Act and the EWärmeG 

� Optional connection for additional heat sources (e.g. solid fuel boiler) 

� Low handling weight as components can be split 

Specification 

� Solar coverage (according to Stiftung Warentest test program): 

Modernisation > 12 % 

New build > 25 % 

� DHW output: NL > 2.5 

� Dimensions incl. flue 

(height x width x depth): 1875 x 990 x 1550 mm 

Available: 05/2011 

4 

5 

3 

6 

2 

10/11


VITORONDENS 222-F 


20.2 to 28.9 kW 

Affordable oil condensing storage combi 

boiler with high DHW convenience 

The Vitorondens 222-F is a floorstanding 

oil condensing storage combi boiler with 

an integral DHW cylinder for high DHW 

convenience. Its cylinder has a capacity of 

130 litres (20.2 and 24.6 kW) or 160 litres 

(28.9 kW). Its compact dimensions make 

the Vitorondens 222-F an ideal choice 

for modernisation projects, as all main 

components such as the DHW cylinder 

and the burner are delivered separately, 

to make handling on site easier. 

High reliability through proven 

components 

The Vitorondens 222-F is based on the cast 

iron Vitorond 100 boiler, that has been proven 

for many years. Through the combination of 

the durable Eutectoplex heating surface with 

the downstream Inox-Radial heat exchanger 

made from stainless steel, combustion and 

condensation take place in two physically 

separate locations. The benefit lies in the fact 

that the combustion residues remain in the 

combustion chamber, whilst the combustion 

gases can condense in the Inox-Radial heat 

exchanger without leaving any residues 

behind. 

The Vitoflame 300 blue flame oil burner is 

designed for all commercially available EL 

fuel oil types and ensures particularly clean, 

environmentally responsible and efficient 

combustion. As an option, up to ten percent 

bio-oil (FAME) can be added to the fuel oil.

Vitorondens 222-F 

1 Flue to the top 

2 Vitotronic control unit 

3 Eutectoplex heating surface 

4 Vitoflame blue flame oil burner 

5 Highly effective thermal insulation 

6 Integrated internally heated enamelled 

DHW cylinder 

Easy-to-operate Vitotronic control unit 

1 2 

Vitorondens 222-F 


20.2 to 28.9 kW 


� Affordable oil condensing storage combi boiler for modernisation 

� Eutectoplex heating surface for high operational reliability 

and a long service life 

� Downstream Inox-Radial heat exchanger made from stainless steel 

that cleans itself automatically 

� Clean combustion thanks to the Vitoflame 300 blue flame oil burner 

� Jetflow system for optimum heating water distribution – 

no return temperature raising facility required 

� Flexible installation through open or balanced flue operation 

� Easy-to-operate Vitotronic control unit with plain text and graphic display 

� All commercially available EL fuel oil types with up to 10 % bio-oil can be used 

� Quiet operation through external silencer 

� Low handling weight through individual components 

Specification 

� Compact oil condensing boiler, from 20.2 to 28.9 kW 

� Standard seasonal efficiency [to DIN] up to 97 % (gross cv)/103 % (net cv) 

� Integral DHW cylinder, 

cylinder capacity: 130 litres (28.9 kW: 160 litres) 

� Performance factor: NL = 1.6 

� Dimensions (height x width x depth): 1590 x 665 x 1200 mm 

� Handling dimensions (height x width x depth): 495 x 400 x 715 mm 


6 

3 

4 

5 

12/13


VITORONDENS 200-T 

Oil condensing boiler 

20.2 to 53.7 kW 

Vitorondens 200-T with Vitocell 300-V DHW cylinder 

Oil condensing boiler on a small footprint 

The Vitorondens 200-T is a floorstanding oil 

condensing boiler. It is outstanding on 

account of its compact dimensions and 

attractive price/performance ratio. 

Reliable downstream Inox-Radial heat 

exchanger 

The Vitorondens 200-T is based on the cast 

iron Vitorond 100 boiler that has been proven 

for many years. Through the combination of 

the durable Eutectoplex heating surface with 

the downstream Inox-Radial heat exchanger 

made from stainless steel, combustion and 

condensation take place in two physically 

separate locations. The benefit lies in the fact 

that the combustion residues remain in the 

combustion chamber, whilst the combustion 

gases can condense in the heat exchanger 

without leaving any residues behind. 

The Vitoflame 300 blue flame Unit burner is 

designed for all commercially available EL fuel 

oil types, and ensures particularly clean, 

environmentally responsible and efficient 

combustion. As an option, up to ten percent 

bio-oil (FAME) can be added to the fuel oil. 

Easy and convenient control 

The Vitotronic 200 control unit with plain text 

display and graphic support enables an easy, 

self-explanatory operation with user prompts. 

The Vitotronic enables the convenient control 

of heating systems with one unmixed and up 

to two mixed heating circuits.

Vitorondens 200-T 

1 Flue to the top 


3 Inox-Radial heat exchanger 

4 Eutectoplex heating surface 


6 Vitoflame 300 blue flame oil burner 

Easy-to-operate Vitotronic control unit 

Inox-Radial heat exchanger – durable and efficient 

3 

1 

5 


� Affordable oil condensing boiler for modernisation 

� Eutectoplex heating surface for high operational reliability 

and a long service life 

� Downstream Inox-Radial heat exchanger made from stainless steel 

that cleans itself automatically 

� Clean combustion thanks to the Vitoflame 300 blue flame oil burner 

� Jetflow system for optimum heating water distribution – no return 

temperature raising facility required 

� Flexible installation through open or balanced flue operation 


� All commercially available EL fuel oil types with up to 10 % bio-oil can be used 

� Quiet operation through external silencer 

� Saves time during installation as a result of extensive pre-assembly 


Specification 

� Compact oil condensing boiler, from 20.2 to 53.7 kW 


� Dimensions (height x width x depth): 1226 x 500 x 940 mm (20.2 to 24.6 kW), 

1362 x 500 x 940 mm (28.9 to 35.4 kW) 


4 

6 

2 

Vitorondens 200-T 

Oil condensing boiler 

20.2 to 53.7 kW 

14/15

New developments – gas 

1.9 to 840 kW




backup with a Vitodens 300-W or Vitodens 200-W wall mounted 

gas condensing boiler 

3.8 to 35 kW, heating water buffer cylinder: 750 litres 


Gas condensing storage combi boiler with heating water 

buffer cylinder for solar central heating backup in countries 

with a high solar intensity and a Mediterranean climate 

4.8 to 26 kW, heating water buffer cylinder: 220 litres 

VITODENS 300-W 

High grade wall mounted gas condensing boiler with high operating 

convenience for detached houses with a low heat demand 

1.9 to 11/14 kW (type WB3E) 

Standard seasonal efficiency [to DIN]: up to 98 % (gross cv)/109 % (net cv) 


Possible with the Vitodens 300-W (type WB3E) 

VITOCROSSAL 300 

Gas condensing boiler for the utilisation of condensing technology 

in detached houses and apartment buildings 

26 to 60 kW (type CU3A) 

Standard seasonal efficiency [to DIN]: up to 98 % (gross cv)/109 % (net cv) 


Modular cascade system with up to eight wall mounted 

gas condensing boilers 

17 to 840 kW 


Universal wall mounted gas condensing boiler for 

international markets 

as a system or combi boiler 

6.5 to 35 kW (type WB1C) 

VITOPEND 111-W 

Wall mounted gas boiler with an integral small DHW cylinder 

for high DHW convenience 

10.5 to 24 (30) kW (type WHSB) 

Cylinder capacity: 46 litres 

16/17

Gas condensing boilers 



backup with a wall mounted gas condensing boiler 

Powerful and compact heating centre – 

including solar operation 

Vitosolar 300-F is a powerful unit for solar 

central heating backup and DHW heating. 

This unit comprises a 750 l combi cylinder 

and a base unit with all relevant pipework for 

the direct installation of a wall mounted gas 

condensing boiler. 

Easy to install and complete 

The Vitosolar 300-F is factory-prepared for 

trouble-free installation. The mounting panel 

is already pre-assembled with heating circuit 

distributor, Solar-Divicon, thermally insulated 

pipework and shut-off valves. 

Optional connection of a second heating 

circuit distributor. All connections can be 

routed out of the unit to the right or left, 

subject to the space available. In addition, 

the complete thermal insulation and a visually 

appealing casing are part of the standard 

delivery. 

This easy to install solution not only saves 

time, but also offers a high degree of 

engineering and calculation assurance. 

One control unit for all systems 

Contrary to other systems of this kind, the 

Vitosolar 300-F energy centre is supplied 

with just one control unit – the Vitotronic 200. 

This delivers all functions required by the heat 

source and the solar thermal system. The 

solar yield is shown on the control unit display 

to assist in collating the energy statement. 

This enables convenient operation from one 

central programming unit. 

Efficient and eligible for subsidies 

In connection with solar central heating 

backup, the requirements specified by 

the Renewable Energies Heat Act and the 

EWärmeG (Baden-Württemberg) are met. 

The investment can be subsidised using 

public BAFA funds. Electricity savings of 

up to 70 percent, compared to conventional 

pumps, are achieved by employing variable 

speed HE pumps (Energy Label A) for both 

the heating and the solar circuit.


1 Combi cylinder 

2 Wall mounted gas condensing boiler 

3 Vitotronic 200 control unit 

4 Divicon heating circuit distributor 

5 Corrugated stainless steel pipe for 

DHW heating 

6 Connections on the system side 

7 Solar circuit components 

8 Solar indirect coil 

Pre-assembled and fully wired components 

1 2 

5 

8 


Compact appliance 


� 750 l combi cylinder for solar central heating backup with fitted boiler 

� Combination with Vitodens 300-W/200-W wall mounted gas condensing boiler 

� Convenient Vitotronic 200 control unit 

for operating the entire energy centre, including the solar thermal system 

� High engineering assurance and low installation effort through pre-assembled 

and fully wired components 

� Energy efficient HE pumps for solar and heating circuits (Energy Label A) 

� Upgrading an existing system with solar central heating backup 

� Compact dimensions – ideal for new build and modernisation 

� Connections either on the left or right 

� Uniform high grade design 

� Meets statutory requirements in accordance with the 

Renewable Energies Heat Act and the EWärmeG 

� Optional connection for additional heat sources (e.g. solid fuel boiler) 


Specification 

� Solar coverage (according to Stiftung Warentest test program): 

Modernisation > 12 % 

New build > 25 % 

� DHW output: NL > 2.5 

� Dimensions incl. flue 

(height x width x depth): 1875 x 990 x 1550 mm 


6 

4 

7 

3 

18/19



Gas condensing storage combi boiler for 

solar central heating backup in the Mediterranean climate zone 

4.8 to 26 kW 


Unique storage combi boiler with integral 

solar central heating backup 

The Vitosolar 200-F gas condensing storage 

combi boiler is the only storage combi boiler 

in the world that has solar central heating 

backup, designed for installation inside the 

living space. With a width of 60 cm (kitchen 

unit size), it fits neatly into kitchen or utility 

room alike. 

All essential components are fully plumbed 

and wired to ensure fault-free and rapid 

installation. To make handling this storage 

combi boiler easier, the condensing boiler 

and the buffer cylinder can be transported 

separately to the installation site. Clearances 

to the side for maintenance and service are 

not required. 

Integral solar connection and control unit 

The Vitosolar 200-F gas condensing storage 

combi boiler is already prepared for the easy 

connection of solar collectors. Vitosol 100-F 

flat-plate collectors or Vitosol 200-T vacuum 

tube collectors from Viessmann can be 

connected directly. 

The control module for regulating the 

condensing boiler and the solar thermal 

system is already integrated. All functions 

are matched to one another and have been 

factory tested. The solar yield is displayed 

graphically on the appliance display. 

With a possible solar coverage of up to 

14 percent, the gas consumption otherwise 

required for central heating and DHW heating 

can be reduced accordingly. 

High DHW convenience 

The DHW is heated according to the 

instantaneous water heater principle 

(combi boiler). The buffered heating water, 

heated by solar energy, enables hot water 

to be available immediately at a temperature 

suitable for consumption. The special 

stratification heating system using a heating 

lance, ensures that the hottest heating water 

heated by solar energy can be drawn off 

immediately.



2 MatriX cylinder burner 

3 Temperature sensor, solar return 

4 Pump, heating circuit 

5 Pump, solar circuit 

6 3-way valve 

7 Plate heat exchanger, DHW 

8 Diverter valve, DHW 

9 Expansion vessel, heating (on-site) 

10 Expansion vessel, solar (on-site) 

11 Plate heat exchanger, solar circuit 

12 Mixing valve, heating water 

13 Cylinder primary pump 

14 Temperature sensor, cylinder return 

15 Cylinder temperature sensor 

16 Solar buffer cylinder (220 litres capacity) 

MatriX cylinder burner 

HV 

WW 

KW 

HR 

2 

6 7 


Gas condensing storage combi boiler 


� Unique storage combi boiler with solar central heating backup 

for installation in the living space (kitchen unit size) 

� High solar coverage: 220 litre heating water buffer cylinder 

with integral stratification heating system 

� Effective solar central heating backup: > 14 % additional energy savings 

� All essential system components are fully plumbed and wired 

� Durable and efficient through the Inox-Radial heat exchanger 

� MatriX gas burner with Lambda Pro Control combustion controller for 

permanently high efficiency and clean combustion 

� Integral solar pump assembly for direct connection of solar collectors 

� High DHW convenience through heating water heated by solar energy 

� Easy-to-operate control unit with plain text and graphic display 

� The programming unit that is part of the control unit can also be fitted 

on a wall mounting base 

� Splits for easier handling 

Specification 

� Gas condensing storage combi boiler: 4.8 to 26 kW 

� Standard seasonal efficiency [to DIN]: 98 % (gross cv)/109 % (net cv) 

� Modulation range 1:4 

� Dimensions (height x depth x width): 2075 x 595 x 600 mm (may be split) 

� Handling weight: 46 kg (condensing boiler), 116 kg (buffer cylinder) 


1 

16 

4 

8 

12 

15 

11 

13 

3 

5 

14 

10 

9 

4.8 to 26 kW 

IT, FR 

20/21




1.9 to 11/14 kW 

The Vitodens 300-W cuts a dash in any environment 

Ideal for buildings with a low heat 

demand 

The new Vitodens 300-W wall mounted gas 

condensing boiler is the perfect solution 

for low energy and passive houses. With a 

particularly wide modulation ratio of 1:6, the 

MatriX gas burner meets the requirements of 

buildings with low heat demand. In addition, 

the spherical MatriX burner is distinguished 

by its efficient operation, as well as its clean 

combustion and low noise emissions. 

Lambda Pro Control for permanently 

high efficiency 

All Vitodens 300-W models are now equipped 

with the automatic Lambda Pro Control 

combustion controller that safeguards 

permanently high efficiency. The Lambda 

Pro Control simplifies commissioning and 

extends the inspection intervals by the flue 

gas inspector from two to three years. 

No minimum flow rate required 

The Vitodens 300-W is equipped with integral 

sensor technology that enables operation 

without minimum flow rate. This additionally 

improves the robustness, efficiency and 

application range of the condensing boiler. 

High operating convenience via wireless 

connection or via a smartphone 

Now, the Vitodens 300-W can be conveniently 

operated from afar via an integral interface: 

At home with the wireless Vitotrol 300 RF 

touchscreen remote control with colour 

display; when you’re away via a smartphone 

(iPhone, android) with an App developed for 

this purpose. 


The hydraulic balance is essential for the 

efficient operation of any heating system. 

The Vitodens 300-W is now prepared for 

automated and certified hydraulic balancing 

(see page 24). For this, your contractor only 

requires the service case with wireless 

radiator drives and the Vitosoft 300 software, 

which are available as accessories.

Vitodens 300-W 

1 MatriX gas burner 


3 Diffusion-proof expansion vessel 

4 High efficiency DC pump 


MatriX gas burner for extremely 

clean combustion 

Vitotrol 300 RF colour touch panel 

1 



1.9 to 11/14 kW 


� Ideal for buildings with a high degree of thermal insulation and low heat demand 

� Durable and efficient through the Inox-Radial heat exchanger with water-cooled 

front and back panel, plus air vent valve 

� MatriX gas burner (spherical burner) with Lambda Pro Control combustion 

controller for permanently high efficiency and clean combustion 

� No minimum flow rate required: Easy hydraulic integration 

(no overflow valves, bypasses or low loss header required) 

� Diffusion-proof expansion vessel 

� Low cycle frequency, even with low heat demand, through optimised pauses 

and wider modulation range 


� The programming unit that is part of the control unit can also be fitted on a 

wall mounting base 

� Integral interface for operation via smartphones and App 

� Wireless operation via colour touch panel 

� Prepared for automatic hydraulic balancing (eligible for KfW subsidy) 

� Intelligent SMART diagnostic system for maintenance scheduling 

� Power-saving HE pump (compliant with Energy Label A) 

Specification 

� Wall mounted gas condensing boiler (system boiler), 

1.9 to 11/14 kW (from 2012 19, 26, 35 kW) 


� Modulation ratio 1:6 

� Dimensions (height x depth x width): 850 x 360 x 480 mm 

� Weight: 50 kg 


2 

3 

4 

5 

22/23



Wireless radiator servo valve drives for fitting to the 

radiator valves 

Time saved through easy process 

Experience tells us that the hydraulic balancing 

of a heating system is frequently omitted on 

account of the amount of effort it takes. On 

the other hand, it is required in accordance 

with the heating system regulations and the 

VOB, and must be confirmed by a contractor 

certificate. This verification must also be 

presented if a KfW subsidy is applied for. 

This process is now significantly easier using 

the automated hydraulic balancing function 

of the Vitodens 300-W gas condensing boiler. 

For this purpose, the appliance is equipped 

with facilities for measuring the flow rate and 

the differential pressure. This data is then 

exchanged between the integral wireless 

gateway of the Vitodens 300-W and the 

Vitosoft 300 service program. 

For automatic hydraulic balancing, contractors 

firstly need a laptop plus the Viessmann 

service case, wireless actuators and the 

Vitosoft 300 service software. 

Certified balancing for subsidy 

programmes 

Balancing is easy. Initially, the contractor 

enters space-specific details into the 

Vitosoft 300 program running on the PC, 

such as heat demand, radiator size and type 

of thermostatic valves. 

Then, the thermostatic valves installed on site 

are replaced by the marked wireless service 

actuators, after which the test procedure is 

started via the Vitosoft 300 service software. 

The Vitosoft 300 automatically captures the 

necessary measurements required for the 

current hydraulic balancing. The time required 

for a system with, for example, ten radiators 

is now only one hour – in other words, 

a fraction of time taken previously. The 

entire test proceeds automatically. 

After completion of the TÜV-certified 

process, the pre-settings for each radiator 

valve are reported by the Vitosoft 300 in 

hard copy form. This provides the user with 

the necessary verification for an application 

for KfW subsidies. Finally, it remains 

only to set all determined values at the 

thermostatic valves.

Hydraulic balancing 

1 With automated 

hydraulic balancing 

2 Without automated 

hydraulic balancing 

Number of Number of Required 

radiators required meas- time 

urements (in minutes) 

2 3 3 

3 6 6 

4 10 10 

5 15 15 

6 21 21 

7 28 28 

8 36 36 

9 45 45 

10 55 55 


� Savings in time and cost 

� No specialist knowledge required 

� Reliable and accurate balancing 

� Up to 15 % greater energy efficiency 

� Noise reduction through optimally adjusted thermostatic valves 

� Suitable for all commercially pre-adjustable radiator valves 

� Eligible for KfW subsidies through TÜV-certified process 


1 2 

Automated 

hydraulic 

balancing 

24/25



Gas condensing boiler 

26 to 60 kW 

The Vitocrossal 300 in combination with the Vitocell 300-V 

DHW cylinder 

Advanced condensing technology 

The Vitocrossal 300 provides ideal conditions 

for utilising condensing technology in 

apartment buildings. The smooth Inox-Crossal 

heat exchanger surfaces allow the condensate 

created by the condensing process to simply 

and efficiently run off downwards. Combined 

with the smooth stainless steel surface, this 

creates a permanent self-cleaning effect, thus 

ensuring a permanently high utilisation of 

condensing technology, resulting in a longer 

service life whilst reducing maintenance 

effort. 

Intensive utilisation of the heating gases 

With its vertical heat exchanger, the 

Vitocrossal 300 utilises the condensation 

energy in its heating gases particularly 

intensively. This results in an efficiency 

of up to 98 percent. 

Convenient Vitotronic control unit 

Contractors and users benefit equally from 

the easy to use Vitotronic control unit. The 

structure of the control menu is logical and 

easy to understand; the unit is backlit, rich in 

contrast and easy to read. If in doubt, a help 

function informs users of the next steps to 

perform. The graphic user interface can also 

display heating curves and solar yield. 

Automatic combustion control 

The proven MatriX gas burner with Lambda 

Pro Control combustion controller automatically 

adjusts itself to varying gas qualities and 

ensures a constantly high standard seasonal 

efficiency, both for natural gas and LPG. 

Balanced flue operation up to 60 kW 

Balanced flue operation is possible up to 

60 kW, which enables a flexible installation 

of the condensing boiler inside the building. 

Furthermore, the Vitocrossal 300 is also 

available for larger heating requirements 

in an output range up to 142 kW.

Vitocrossal 300 

1 Digital Vitotronic boiler control unit 

2 Water-cooled stainless steel 

combustion chamber 

3 Modulating MatriX gas burner and 

Lambda Pro Control combustion controller 

4 Stainless steel Inox-Crossal heat exchanger 


6 Flue gas collector with condensate drain 

7 Ventilation air pipe for balanced flue 

operation 

Vitotronic 200 control unit with clear user prompts 

7 

5 

2 

4 

6 

3 

1 



26 to 60 kW 


� Stainless steel Inox-Crossal heat exchanger for efficient utilisation of 

condensing technology 

� Self-cleaning effect through smooth stainless steel surfaces 

� Modulating MatriX gas burner with a wide modulation range down to 20 % 

for particularly quiet, economical and environmentally responsible operation 

� Lambda Pro Control combustion controller for all gas types – saving fees by 

extending the inspection intervals to up to 3 years [in Germany] 

� Excellent controllability and reliable heat transfer through wide water galleries 

and large water content 

� Easy-to-operate Vitotronic 200 control unit with plain text and graphic display 

� Balanced or open flue operation 

� A strong draught in the flue outlet enables long, balanced flue lengths 

Specification 

� Compact gas condensing boiler, from 26 to 60 kW 


� Dimensions (height x depth x width): 1562 x 684 x 660 mm (7 to 35 kW) 

� Weight: 49 to 86 kg 

26/27



Modular cascade system 

17 to 840 kW 

Modular cascade system with 

up to eight appliances 

The Vitodens 200-W gas condensing boiler 

from 45 kW is the bedrock of a new modular 

cascade system with output ranging from 

17 to 840 kW. To cover this wide output 

range, up to eight Vitodens 200-W can 

be linked in a single cascade. In case of 

installation in block formation, a footprint 

of only 3.5 m² is all that is required for the 

maximum output of 840 kW. 

Simple and quick installation 

The new cascade unit comprises a few easy 

to manage modules that can be quickly 

handled and assembled. Generally, a selfsupporting 

mounting frame is part of the 

standard delivery. With the Vitodens 200-W, 

an efficient heating system is created that 

offers a high level of heating and DHW 

convenience that is ideal for modernisation 

projects in the commercial sector. A low loss 

header is available as an option. 

Every appliance in the cascade can be 

supplied with HE pumps for an even more 

economical operation. This option enables up 

to 70 percent of electricity costs to be saved, 

compared to conventional pumps. 

New cascade control unit 

The new Vitotronic 300-K offers itself as 

cascade control unit. The plain text display 

with graphic support offers a high degree of 

operating convenience (see also page 91). 

Where required, the heating system can also 

be linked to a building automaton system via 

the Vitogate 200.


1 Stainless steel Inox-Radial heat exchanger 

2 Modulating MatriX cylinder burner 

3 Variable speed combustion air fan 

4 Gas and water connections 


Vitotronic cascade control unit 

1 

4 


Modular cascade system 


� Multi boiler system with high flexibility resulting from its modular design 

� Simplified delivery, handling and assembly through practical units 

� Up to eight appliances per cascade 

� High operating convenience through new cascade control unit with 

plain text and graphic display 

� Optional low loss header 

� Use of HE pumps reduces electricity costs by up to 70 % 


2 

3 

5 

17 to 840 kW 

28/29




System boiler: 19, 26, 35 kW 

Combi boiler: 26 and 35 kW 

Inox-Radial heat exchanger – durable and efficient 

Universal wall mounted gas condensing 

boiler for the world market 

With the Vitodens 100-W, Viessmann 

presents an affordable wall mounted gas 

condensing boiler for the international market. 

An extensive and country-specific range of 

accessories makes this wall mounted boiler 

suitable for new build and modernisation in 

equal measure. 

The Vitodens 100-W is offered with four 

output ratings as a system boiler – 19 to 

35 kW – and as a combi boiler with an integral 

instantaneous water heater in three output 

stages – 26 to 35 kW. 

New air box concept makes service and 

maintenance easier 

The new “Box design” of the Vitodens 100-W 

combines several benefits – firstly, there is 

the reduced noise level, and secondly, the 

improved accessibility of components for 

service and maintenance. 

At the same time, the height of the appliance 

compared to its predecessor was reduced 

by 40 mm. With its new height of only 

700 mm, the Vitodens 100-W is the lowest 

in its class. Its compact dimensions make 

the Vitodens 100-W the perfect choice, 

particularly when replacing wall mounted 

boilers in multi storey buildings – even 

where several appliances are connected 

to the same chimney. 

Highly efficient heat exchanger 

The stainless steel Inox-Radial heat exchanger 

converts the energy employed efficiently into 

heat. It is 97 percent efficient. This extremely 

economical usage of valuable natural gas also 

causes fewer CO2 emissions and helps to 

protect the environment.


1 Integral diaphragm expansion vessel 

2 Modulating MatriX cylinder burner 


4 Variable speed combustion air fan 

5 Plate heat exchanger 

6 Digital control unit 

5 

1 



6.5 to 35 kW 


� Attractively priced wall mounted gas condensing boiler for the international market 

� Stainless steel Inox-Radial heat exchanger 

� MatriX cylinder burner 

� Low noise level and improved accessibility during service and maintenance 

through a new air box concept (“Box design”) 

� Low installed height for an easier replacement of wall mounted boilers 

� Easy analogue operation via control unit with rotary selectors and a large display 

� Control unit with manual output restriction 

� Control unit with optional connection of modulating room thermostats 

(Opentherm interface) 

� Extensive and country-specific system accessories 

Specification 

� Wall mounted gas condensing boiler 

System boiler: 19, 26, 35 kW 

Combi boiler: 26 and 35 kW 

� Standard seasonal efficiency [to DIN]: 

97 % (gross cv)/108 % (net cv) 



6 

2 

4 

3 

FR 

30/31

Gas boilers 

VITOPEND 111-W 

Gas boiler with an integral small DHW cylinder 

10.5 to 24 (30) kW 

Vitopend 111-W in a utility room 

Wall mounted boiler with integral cylinder 

for the highest DHW convenience 

The Vitopend 111-W gas boiler with an integral 

DHW cylinder, offers the highest draw-off 

rate amongst wall mounted appliances, and a 

constant outlet temperature. For this purpose, 

a stainless steel primary store with 46 litres 

capacity, and an electronic outlet temperature 

controller are integrated. In addition, this 

appliance is distinguished by its favourable 

price/performance ratio. 

The Vitopend 111-W delivers large amounts 

of hot water in next to no time. A standard 

bath (140 litres), for instance, fills in less than 

ten minutes. A shower fitting, a kitchen sink 

or a washbasin, for example, can be supplied 

with water, at the temperature of use, 

simultaneously. 

Simple operation 

The heating water and DHW temperatures 

can be set intuitively with the user friendly 

rotary selectors. The graphic display shows 

operating conditions and temperatures. 

Particularly easy to service and maintain 

In the tidy and forward-oriented wiring chamber, 

all components with service relevance are 

easily accessible and can be replaced from 

the front. Clearances for service at the boiler 

sides are now unnecessary. 

With the pre-plumbing jig (accessory), all 

connections can be prepared during the 

building phase and tested for tightness – 

the Vitopend 111-W can be simply hooked in 

later. For an aesthetic finish to the appliance, 

a valve cover with the same design is 

available as an accessory. 

Reliable and durable – 

Made in Germany 

As a large-scale manufacturer with many 

years of experience in the production of wall 

mounted boilers, Viessmann knows what 

matters. Naturally, our ambitions for product 

quality and performance are rigorously 

translated into reality. High reliability and 

a long service life are the consequences 

of this commitment.

Vitopend 111-W 

1 Low noise flue gas fan 

2 Powerful stainless steel primary store 

3 Effective heat exchanger 

4 Tall combustion chamber for clean 

combustion 

5 Modulating atmospheric burner 

6 Expansion vessel 

7 Control unit 

Stars according to EN 13203 *** 

Dolce Vita 18 l/min 

N L performance factor 1.6 

Simultaneous operation 

High DHW convenience 

4 

1 

5 

Vitopend 111-W 

10.5 to 24 (30) kW 

BE, BG, CZ, EE, ES, FR, HR, HU, IT, 

LT, LV, RO, RS, RU, SI, SK, TR, UA 


� Integral stainless steel small DHW cylinder for high DHW convenience 

and the highest hygiene standard 

� Modulating atmospheric burner 

� Simple adaptation to previous boiler installations 

� DHW expansion vessel (option) saves water 

� Reliability and durability 

Specification 

� Vitopend 111-W gas boiler, 10.5 to 24 (30) kW 

� Open flue operation: 24 kW, with 30 kW DHW booster 

� Balanced flue operation: 24.8 kW with 30 kW DHW booster 

� Primary store capacity: 46 l 

� Dimensions (height x width x depth): 900 x 600 x 480 mm 


3 

2 

6 

7 

32/33

New developments – oil/gas 

87 to 20,000 kW



Gas condensing boiler – made from stainless steel throughout 

787 to 1400 kW 


Up to 98 % (gross cv)/109 % (net cv) 

VITOMAX 200-HW 

High pressure hot water boiler for district heating utilities 

and industrial concerns 

for reliable flow temperatures up to 150 °C 

Type M72A: 2.3 to 6 MW, type M74A: 8 to 16.5 MW 

VITOMAX 300-HS 

High pressure steam boiler with high efficiency 

Type M95A: 5 to 26 t/h 

Up to 25 bar 


Efficient high pressure steam boiler up to 30 bar 

Type M73A: 0.5 to 4 t/h 

Up to 30 bar 


Cost effective high pressure steam boiler 

Type M33A 

1 to 6.4 t/h 

6 to 16 bar 

Matching system packs 

for low pressure hot water boilers 

Vitomax 200-LW 


Programmable Logic Controls (PLC): 

easy-to-operate colour touch panel 

and graphic interface 

for Vitomax industrial/commercial boilers 

34/35



Gas condensing boiler matched to commercial makes of burner 

787 to 1400 kW 

Inox-Crossal heat exchanger 

Vitocrossal 300 – made from stainless 

steel throughout 

The Vitocrossal 300 (type CR3B) is a leading 

product amongst floorstanding gas condensing 

boilers, available from 787 to 1400 kW. 

As a single boiler, it is the most powerful 

condensing boiler in the comprehensive range 

from Viessmann. This makes it just as suitable 

for residential complexes as for local heating 

networks, larger public and commercial 

buildings and industrial plants. 

The combustion chamber was developed 

in close cooperation with renowned burner 

manufacturers to achieve an optimum burnout. 

The Inox-Crossal heat exchanger enables it to 

utilise the condensation heat latent in its hot 

gases with particular intensity. As a result, 

it achieves a standard seasonal efficiency 

[to DIN] of up to 98 percent (gross cv)/ 

109 percent (net cv). The second return 

connector of the Vitocrossal 300 enables 

a connection that is highly beneficial to the 

utilisation of condensing technology. 

Newly designed waterways 

The new design of the Inox-Crossal heat 

exchanger enables the Vitocrossal 300 to 

raise its output up to 1400 kW, whilst 

retaining its modest dimensions and low 

weight. The boiler is split for easier handling. 

Convenient yet powerful control unit 

The economical and safe operation of your 

heating system is ensured by the Vitotronic 

control system with communication capability. 

The particularly powerful Vitotronic 300-K 

control unit has now been located on the 

side of the boiler where it offers excellent 

controllability. It can regulate up to four boilers 

with modulating boiler water temperature, 

as well as systems with one and two heating 

circuits with optional mixer. 

The plain text and the backlit display make 

the control unit with its integral diagnostic 

system exceptionally convenient to use. 

External appliances and devices are connected 

easily via system plugs. Standardised LON 

for complete integration into building 

management systems. Remote monitoring 

any time via internet TeleControl with Vitocom 

and Vitodata are feasible.


1 Stainless steel combustion chamber 

2 Inox-Crossal heat exchanger 

3 Two return connectors 

4 Highly effective thermal insulation 2 

Vitotronic 300-K, type MW1 



787 to 1400 kW 


� Largest single boiler system with condensing technology, all in stainless steel 

� New combustion chamber for a clean burnout 

� The most stringent emission limits are maintained 

� Inox-Crossal heat exchanger 

– Corrosion-resistant 

– Made from stainless steel 

– For a highly effective heat transfer 

– High condensation rate 

– High operational reliability and a long service life 

– Self-cleaning effect through smooth stainless steel surface 

� Clean combustion through low combustion chamber loading and 

straight through design 

� Split version for easy handling 

� Two return connectors for hydraulic connection, for optimum use of 

condensing technology 

� Vitotronic control unit fitted at eye level on the side of the boiler 

� Use with all commonly available gas burners 

Specification 

� Vitocrossal 300 gas condensing boiler 

Rated output: 787 to 1400 kW 

(at heating system temperatures 50/30 °C) 

Rated output: 720 to 1280 kW 

(at heating system temperatures 80/60 °C) 


� Permissible operating pressure: 6 bar 

� Dimensions (height x depth x width): 1676 x 3543 x 1200 mm (1400 kW) 

� Weight: 2065 kg (1400 kW), split for easy handling 

� Primary store capacity: 1833 l (1400 kW) 


3 

4 

1 

36/37

High pressure 

hot water boilers 

VITOMAX 200-HW 

High pressure hot water boiler 

2.3 to 16.5 MW 

Vitomax 200-HW 

The boiler for district heating plants and 

industrial enterprises 

The Vitomax 200-HW is an oil/gas high pressure 

hot water boiler for flow temperatures in 

excess of 120 °C and an operating pressure 

between 6 and 16 bar. This boiler is typically 

used in district heating plants and industrial 

enterprises. 

Water-cooled burner insertion point and 

reversing chamber 

Vitomax boilers do not need to be lined for the 

burner installation. This guarantees a constant 

temperature around the burner head, with low 

NOx levels – the otherwise usual reflection 

from the refractory lining is not applicable. 

The burner insertion point and the rear flue 

gas reversing chamber of the Vitomax 200-HW 

are water-cooled. Hence the energy in 

the flue gases is used exclusively for 

generating heat. 

Generously sized tube spacings for 

long-term boiler operation 

The spacing between the smoke tubes, as 

well as from the flame tube to the boiler shell, 

are well above requirements. The shearing 

force on the end face floors caused by 

different linear expansion in the smoke tubes 

and the flame tube is therefore extremely low. 

This design guarantees a long service life for 

the Vitomax 200-HW.


Type M72A (without heat exchanger) 

1 Boiler with walk-on cover 

2 Duplex pipe with multi layer convection 

heating surface 

3 Water-cooled burner insertion point for 

low nitrogen oxide emissions 

4 Large and light cleaning doors 

5 Wide water galleries for good natural 

circulation and low thermal load 


Water deflector 

5 


High pressure hot water boiler 

2.3 to 16.5 MW 


� 3-pass steel boiler 

� Dry reversing chamber at the front; rear reversing chamber completely 

surrounded by water 

� High efficiency up to 97 % (with heat exchanger) 

� 120 mm thermal insulation 

� Corner stays arranged in pairs reduce stress in the component 

� Generously sized flame tubes for clean combustion 

� Hand hole at the boiler apex 

� Head hole at the jacket circumference for a visual inspection of weld seams 

� Longest possible inspection intervals due to low-stress design (in Germany) 

Specification 

� Vitomax 200-HW high pressure hot water boiler (type M72A/M74A) 

� Output: 2.3 to 16.5 MW 

� Pressure levels: 6, 10, 16 bar 

� Fuels: 

– Light fuel oil (HEL) 

– HFO 

– Natural gas 


2 

6 

1 

3 

4 

38/39

High pressure 

steam boilers 


High pressure steam boiler 

5 to 26 t/h 

Clean combustion and high efficiency 

The Vitomax 300-HS (type M95A) high 

pressure steam boiler satisfies all of the 

latest legal requirements for combustion 

with particularly low emissions. Further 

development of the design has also enabled 

boiler efficiency to be increased to 97 percent 

(with economiser). 

Irrespective of the fuel used, the boiler 

delivers an output of up to 26 tonnes of steam 

per hour. It has been conceived especially 

for manufacturing industries, where large 

amounts of steam are required continually. 

Thanks to its large evaporator, high steam 

quality with low residual moisture is a key 

feature. The Vitomax 300-HS can be operated 

very flexibly with light or heavy fuel oil or even 

biomethane. 

Highly efficient steam generation 

Due to their special design, Vitomax boilers 

need not be fitted with refractory linings for 

the installation of the burners. This guarantees 

a constant temperature around the burner 

head, with low NOx levels – the otherwise 

usual reflection from the refractory lining is 

not applicable. The burner insertion point and 

the rear flue gas reversing chamber of the 

Vitomax 300-HS are water-cooled. Hence the 

energy in the flue gases is used exclusively 

for steam generation. 

Easy to service and maintain through 

large inspection ports 

Just like all other Vitomax boilers, the 

Vitomax 300-HS is equipped with numerous 

inspection and access ports for servicing and 

maintaining all the important points inside 

the boiler. As a result, Vitomax high pressure 

boilers achieve the longest possible inspection 

intervals. Easy-to-open boiler doors, and a 

cleaning door at the end of the boiler also 

ensure that maintenance is simple, and both 

contribute to low operating costs.

Vitomax 300-HS 

Type M95A (without economiser) 

1 Water-cooled burner insertion point with 

large combustion chamber to the rear 

2 Large expansion clearances 

3 Large, lightweight cleaning doors without 

refractory linings facilitate cleaning and 

maintenance 

4 Stable base frame with longitudinal 

supports that can be extended according 

to requirements 

5 Walk-on cover that may be extended to 

create a platform (option) 

View of the integrated economiser in a steam boiler 


� 3-pass steel boiler without refractory lining 



� High efficiency up to 97 % (with economiser) 


� Generously-sized steam chamber with low steam chamber load 

� Integrated steam drier for high steam quality 


� Generously-sized flame tubes for clean combustion 

� Longest possible inspection intervals due to low-stress design 

� Easy to service due to numerous inspection and access ports 

� Use in manufacturing industries, as well as food processing, 

fertiliser production, construction materials, paper, beverage, 

chemical and pharmaceutical industries, hospitals and refineries 

Specification 

� Vitomax 300-HS (type M95A) high pressure steam boiler 

� Output: 5 to 26 t/h, subject to fuel 

� Pressure levels: 6, 8, 10, 13, 16, 18, 20, 22, 25 bar 

� Fuels: 

– HEL, NOx emissions (< 150 mg/m3 flue gas) 

– HFO, masut 100 

– Natural gas, NOx emissions (< 80 mg/m3 flue gas) 


4 

5 

2 

1 



3 

5 to 26 t/h 

40/41

High pressure 

steam boilers 



0.5 to 4 t/h 


1 to 6.4 t/h 


Efficient steam generation up to 30 bar 

The two high pressure steam boilers 

Vitomax 200-HS (type M73A) and 

Vitomax 100-HS (type M33A) meet the 

demand for efficient steam generation. 

The permissible operating pressure ranges 

from 6 to 30 bar for the Vitomax 200-HS 

and up to 16 bar for the Vitomax 100-HS. 

The steam output per hour ranges from 

0.5 to 4 (Vitomax 200-HS) or 1 to 6.4 tonnes 

(Vitomax 100-HS). 

Whilst the Vitomax 200-HS is tailored to 

applications in large industrial enterprises, 

the more affordable Vitomax 100-HS is aimed 

at the needs of commercial operators, such 

as laundries and meat processors. The boiler 

is ideal for all users that require steam 

continuously. Optionally, the high pressure 

steam boiler can be operated with light fuel 

oil (HEL), LPG, natural gas or biomethane. 

Large steam chamber with low pipe load 

The spacing between the smoke tubes, as 

well as from the smoke tubes to the boiler 

shell and to the flame tube, are well above 

requirements. The shearing force on the 

end face floors caused by different linear 

expansion in the smoke tubes and the flame 

tube is therefore extremely low, guaranteeing 

a long service life for these steam boilers. 

The corner stays of the boiler are always 

arranged in pairs. As a result, the forces 

are distributed throughout the component, 

reducing the stress and increasing the service 

life. In every case, the values lie well below 

the limits permitted by the FDBR trade 

association.


Type M73A (without economiser) 

1 Flame tube with water-cooled burner 

insertion point 

2 Front flue gas reversing chamber 

3 Steam drier 

4 Generous pipe spacing to reduce stresses 

5 120 mm thermal insulation with 

sheet steel casing in Vitosilver 

6 Stable boiler support 

(I-beam supports as option) 

Economiser fitted on a Vitomax 200-HS 

5 

4 



0.5 to 4 t/h 





� Flame tube in the form of a smooth or corrugated pipe depending on pressure level 

� Generously-sized flame tubes for clean combustion 

� Large steam chamber with low pipe load 

� Integrated steam drier for high steam quality 


� Longest possible inspection intervals due to low-stress design 

� Easy to service due to numerous inspection and access ports 

Vitomax 200-HS (type M37A) 

� 3-pass steel boiler without refractory lining 

� High efficiency with up to 95 % 

� Use in manufacturing industries, as well as food processing, fertiliser 

production, construction materials, paper, beverage, chemical and 

pharmaceutical industries, hospitals and refineries 


� Reverse flame boiler without refractory lining 

� Efficiency from 86.5 to 94 % 

� Water-cooled flame tube mounting 

� Use in manufacturing industries, as well as meat processors, laundries, hospitals, 

the beverage industry (small breweries, dairies) and small-scale industrial concerns 

Specification 

� Fuels: light fuel oil (HEL), natural gas, LPG 


� Output: 1 to 4 t/h, subject to fuel 

� Pressure levels: 6, 8, 10, 13, 16, 18, 20, 22, 25, (30) bar 


� Output: 1 to 6.4 t/h, subject to fuel 

� Pressure levels: 6, 8, 10, 13, 16 bar 


6 

3 

2 

1 

42/43

System packs 

VITOMAX 200-LW 

VITOMAX 100-LW 

System packs 

Matching system packs for low 

pressure hot water boilers 

The new system packs for the Vitomax 

200-LW (type M62A) and Vitomax 100-LW 

(type M148) low pressure hot water boilers 

offer a high degree of engineering and 

calculation assurance for industrial/commercial 

boiler plants. Apart from guaranteeing the 

highest quality and flexibility, these further 

provide the assurance that all components 

are perfectly matched to each other. 

The new system pack for the Vitomax 

200-LW (type M62A) includes burners that 

offer clean combustion, as well as an option 

for remote monitoring and O2 control. 

The system pack for the Vitomax 100-LW 

(type M148) includes a gas train for different 

gas pressure levels, enabling a flexible 

response to customer requirements. The 

burners with electronic air:gas control and 

a control panel with integral Vitotronic and 

control desk are also new. 

Flue gas heat exchanger for improved 

efficiency 

A flue gas heat exchanger is available as an 

accessory. This can raise the boiler efficiency 

to up to 95 percent. It can be combined with 

oil and gas burners. 

Container solutions with Vitomax and 

Vitoplex boilers 

New heating centres for industrial and 

commercial enterprises frequently need to 

be operational in the shortest possible time. 

For speedy installation and commissioning, 

Viessmann now also offers complete Vitomax 

industrial/commercial boiler systems as 

pre-assembled container solutions, which 

are compact and easy to transport.


Type M62A (with and without heat exchanger) 

System packs with options 

1 Boiler with burner 

2 Intermediate flow piece with 

safety equipment 

3 Control system 

4 Boiler circuit pump 

5 Safety valve 

6 Flue gas heat exchanger (option) 

7 Flue gas damper (option) 

8 Flue gas silencer (option) 

9 Three-way mixing valve 

(return temperature raising facility) 

10 Flash trap 

Burner in the Viessmann design 

(made by Elco) for the Vitomax 100-LW 

1 

2 


� Matching system solutions for the highest operational reliability 

� Improved efficiency up to 95 % (with flue gas heat exchanger) 

� Standard appearance in the Viessmann design 

� Reduced time for engineering and installation 

� Dimensions to suit road transport 

� Extension with matching components 

� Corresponds to standard emission requirements 

� Optional pre-assembled container systems 

10 

3 

5 

9 

4 

7 

6 



System packs 

8 

44/45

Programmable 

Logic Control (PLC) 

Programmable Logic Control (PLC) 

for Vitomax industrial/commercial boilers 

Touch panel with graphic user interface 

A new programmable logic control (PLC) 

was developed to make operating Vitomax 

high pressure steam boilers even easier. The 

interface of this control system is comprised 

of a self-explanatory 10 inch graphic touch 

panel. Text details of previous control units are 

replaced or supplemented by unmistakable 

pictographs. 

Boiler functions are selected via a menu. 

Any deviations that occur during operation 

are categorised as “fault”, “warning” or 

“information” messages. The universal user 

interface can be modified and adapted to suit 

individual systems. 

Large touch fields make up the visual interface 

of the 10 inch colour display with 65,000 

colours and a resolution of 320 x 240 pixel. 

Detailed function diagrams 

A programmable logic control (PLC) regulates 

all boiler processes that have no immediate 

safety relevance. These include boiler steam 

output and water level control, as well as 

T.D.S. and blow-down control. If required, 

auxiliary equipment, such as dosing pumps, 

thermal water treatment facilities, bypass 

dampers and flue gas dampers, etc. can also 

be controlled. 

All safety functions are implemented, 

in accordance with specific national 

requirements, by means of safety-compliant 

instrumentation and control equipment 

outside the PLC. 

An auxiliary module, which is connected 

to the telephone network, enables remote 

monitoring to be conducted from anywhere if 

required, with operational and fault messages 

sent automatically to a control centre.

Multi-lingual operating support 

The system is operated and programmed on 

a touch screen in the control panel door. The 

most important actual system values can be 

read at a glance. The language of the country 

of installation can be selected. 

Full integration 

Operational and fault messages are issued 

in plain text in the selected language and 

recorded in a log file. An Ethernet interface 

is available for connection to building 

automation systems or a SCADA system. 

A Profibus interface can be retrofitted as 

an option. 

Detailed information relating to boiler parameters 

Representation of the setting level for a feedwater control valve 

Programmable 

Logic Control (PLC) for 

Vitomax industrial/commercial boilers 


� Ergonomic graphic user interface on a robust 10.4 inch colour touch panel 

� Process data interface via Ethernet (optional Profibus) 

� Modular design for system-specific extension 

� Convenient, due to complete integration of all system components 

� High operational reliability 

� Optional remote maintenance interface 

� Multilingual 

� Factory-tested 

� Worldwide spare parts service 

46/47

New developments – combined heat 

and power generation 

1 to 401 kW el , 6 to 549 kW th


VITOTWIN 300-W 

Micro CHP appliance on Stirling basis – 

heat and power for residential buildings 

1 kWel , 6 kWth VITOBLOC 200 

Mini CHP module with unrivalled service intervals for 

apartment buildings and commercial enterprises 

Module EM-5.5/12 

3 to 5.5 kWel , 12 kWth VITOBLOC 200 

Combined heat and power module for apartment 

buildings and commercial and industrial enterprises 

Module EM-20/37 

10 to 20 kWel , 20 to 39 kWth VITOTRANS 200 AC 

Flue gas/water heat exchanger in five versions for 

integration in the Vitobloc CHP module 

50 to 401 kWel Biomethane supply contract with 

attractive remuneration according to the 

Renewable Energy Sources Act 

1 

2 3 

48/49

Micro CHP appliance 

with Stirling engine 

VITOTWIN 300-W 

Micro CHP appliance with Stirling engine 

1 kW el , 6 kW th 

Stirling engine 

Heat and power for residential buildings 

Compact dimensions combined with proven 

technology make the deployment of 

combined heat and power generation a viable 

option also for modernisation in detached and 

two-family houses. The Vitotwin 300-W micro 

CHP appliance covers the heat demand of 

the building and is perfect for covering the 

base load of the electricity demand as well. 

The compact wall mounted casing joins a 

Stirling engine and the Vitodens 200-W gas 

condensing boiler which acts as peak 

load boiler. 

Quiet running and maintenance-free 

Stirling engine 

The Stirling engine of the Vitotwin 300-W is 

hermetically sealed, runs quietly and is almost 

maintenance-free. These features enable 

installation near the living space. 

The appliance operates with exceptional 

economy where the annual gas consumption 

is at least 26,000 kWh and the power 

consumption lies above 3000 kWh per 

annum. 

In operation, heat is constantly generated, 

making the combination with a heating water 

buffer cylinder essential. 

The Vitotwin 300-W micro CHP appliance is 

as easily installed as a classic wall mounted 

gas boiler – a qualified electrician only needs 

to connect the power via a second meter. 

Heating conveniently and using 

power on site 

The micro CHP appliance is a genuine 

alternative to conventional heating systems 

when modernising. Compared to an outdated 

gas boiler, this appliance not only uses 

significantly less energy, but also generates 

power for consumption on site. Surplus power 

is exported to the grid, which is currently 

remunerated at €0.10/kWh. 

The integral Vitodens 200-W gas condensing 

boiler makes the micro CHP appliance a 

stand-alone heat source. In case of a higher 

heat demand, the gas condensing boiler 

covers any shortfall.

Vitotwin 300-W 

1 Vitodens 200-W peak load boiler 

2 Air distribution valve 

3 Circular burner 

4 Stirling engine 

5 Control unit 

System 

components 

2 

WW 

KW 

Z1 

1 Vitotwin 300-W 

2 Vitocell 340-M 

3 Divicon heating 

circuit 

4 Remote monitoring 

5 

Z2 

6 

1 

4 

Domestic distribution 

Public grid 

Power 

connection 

5 Two-way meter 

6 Electricity meter, 

own generation 

M 

3 

3 

4 


� Sized for modernising detached and two-family houses 

� Generates heat and power simultaneously 

� Own consumption minimises household electricity bills 

� Very quiet operation 

� Compact dimensions and easy to service 

� Maintenance-free Stirling process 

� Other maintenance as for any condensing boiler 

� Simple installation (similar to a wall mounted gas boiler) 

� Public subsidies 

Specification 

� Micro CHP appliance with integral peak load boiler 

� Stirling engine: 6 kWth , efficiency 81 % (gross cv) 

1 kWel , efficiency 15 % (gross cv) 

� Vitodens 200-W: 6 to 20 kW, efficiency 98 % (gross cv) 




1 

2 

5 

Vitotwin 300-W 

Micro CHP appliance with Stirling engine 

1 kW el , 6 kW th 

50/51

Combined heat and 

power modules 

VITOBLOC 200 

Mini combined heat and power module 

3 to 5.5 kW el , 12 kW th 

Highly economical through long 

maintenance intervals 

The Vitobloc EM-5 mini CHP module has an 

output of 5.5 kWel and 12 kWth and closes the 

gap between the wall mounted Vitotwin 300-W 

micro CHP appliance and the Vitobloc 200 

EM-20. The maintenance interval is 6000 

hours. This generally translates into a service 

requirement once every year or even once 

every other year. The three cylinder engine is 

particularly quiet compared to conventional 

single cylinder engines. 

Meets the connection conditions of the 

power supply utility 

This compact appliance even meets the 

stringent technical connection conditions 

specified by power supply utilities. For 

example, the synchronous generator and the 

clever control unit enable the variable setting 

of the phase offset (cos phi). 

Extensive range of technical equipment 

The Vitobloc 200 EM-5 is factory-fitted with 

an extensive range of technical equipment. 

This includes electricity meters and flexible 

connections for gas, flue gas and heating 

water. That saves time and money in 

engineering, installation, commissioning 

and operation. 

The Vitobloc EM-5 is fitted as standard with a 

silencer hood, and can therefore be installed 

in areas where noise emissions are critical. 

Integral condensing technology 

The integral condensing technology enables 

the CHP module to achieve an overall 

efficiency of up to 96 percent. 

Integration into building management 

systems 

The control unit can be linked into the Vitocom 

to provide remote monitoring. In conjunction 

with the Vitodata 300, this gives users a 

standardised tool for remote monitoring.

Vitobloc 200 

1 3-cylinder engine 

2 Synchronous generator without inverter 

3 Larger lubrication oil tank for long 


4 Control unit with integral mains 

circuit breaker 

4 


� Maintenance interval of 6000 hours run 

� Meets the stringent technical connection conditions specified 

by power supply utilities 

� Extensive factory-fitted equipment 

� Quiet 3-cylinder engine 

� Modulation from 50 to 100 % 

� Proven remote monitoring and automation systems 

� Attractive subsidy programmes (particularly in Germany) 

� Integral condensing technology – overall efficiency up to 96 % 

� Silencer hood (as standard) 

� Optional remote monitoring through Vitocom 

Specification 

� Output: 5.5 kWel and 12 kWth � 3-phase feed-in 

� 3-cylinder 4-stroke gas engine 


� Weight approx. 350 kg 

Available: 2012 

2 

1 

Vitobloc 200 

Combined heat and power module 

3 

3 to 5.5 kW el , 12 kW th 

52/53

Combined heat and 

power modules 

VITOBLOC 200 

Combined heat and power module with condensing technology 

10 to 20 kW el , 20 to 39 kW th 

Good reasons to choose a CHP module 

Vitobloc combined heat and power modules 

(CHP) from Viessmann are ready-to-use 

compact systems with a standard frame that 

supports the engine and generator, encased 

in a sound-insulated enclosure and incorporating 

a control unit. CHP modules are appropriate 

where heat is constantly drawn off and the 

longest possible cycles for power generation 

are given. These conditions frequently apply 

in hotels, residential developments of 30 to 

50 units, holiday complexes, swimming pools, 

as well as in industry, commercial properties 

(shopping centres) and trade enterprises. 

Vitobloc 200 EM-20 with condensing 

technology 

Utilising condensing technology allows the 

Vitobloc 200 EM-20 to achieve an overall 

efficiency of 96 percent. The CHP module is 

highly efficient and is recommended for new 

build and modernisation in equal measure. 

A conventional boiler can be linked into the 

system to cover peak loads. 

Highly economical through long 


With more than 6000 hours between 

services, the new Vitobloc 200 EM-20 

features a maintenance interval that is three 

times as long as that of previous appliances. 

Such long periods reduce maintenance costs 

substantially and contribute to the viability 

of the CHP module. By comparison, for a 

car, a service interval of 6000 hours would 

mean that the engine would only need to be 

serviced after it had covered 360,000 km 

(225,000 miles).

Vitobloc 200 

1 4-cylinder engine 

2 Synchronous generator without inverter 

3 Larger lubrication oil tank for long 


4 Control unit with integral mains 

circuit breaker 

High efficiency through Vitotrans 200 AC 

flue gas heat exchanger 

The Vitotrans 200 AC condensing heat 

exchanger downstream makes its own 

contribution to the higher efficiency of 

Vitobloc CHP modules. Five specially 

matched Vitotrans 200 AC heat exchangers, 

made from stainless steel, are available for 

each output stage from 50 to 401 kWel . 

The thermal output of the CHP module is 

increased through the condensing operation 

with heat exchanger by up to six percent. 

The upstanding installation requires less 

space and ensures good drainage of the 

condensate. The use of smooth tubes 

enables easy mechanical cleaning. The 

Vitotrans 200 AC has been designed for 

easy installation and connection. Only the 

thermal insulation needs to be applied on 

site in line with country-specific regulations. 

Vitotrans 200 AC 

Condensing heat exchanger for combined heat 

and power modules 

4 

Vitobloc 200 

Combined heat and power module 

10 to 20 kW el , 20 to 39 kW th 

Vitobloc 200 benefits at a glance: 

� Ready-to-connect units tested in the factory; therefore minimum installation 

effort and tested output values 

� Modulation from 50 to 100 % 

� Mains substitution mode with synchronous generator in case of power failure 

as standard 

� Meets demanding conditions specified by power supply utilities for 

connection to the grid (cos phi is adjustable; the generation of reactive 

currents can be prevented) 

� Proven remote monitoring systems 

� 6000 hours run maintenance interval, three times longer than for conventional 

appliances 

� Vitotrans 200 AC for condensing technology, overall efficiency up to 96 % 

� Reliable technology with more than 1000 installed systems 

Specification 

� Fuel: Biomethane, natural gas 

� High efficiency through condensing technology 

� Output: 10 to 20 kWel , 18 to 39 kWth � Efficiency: 96 % (net cv) 

� 4-cylinder 4-stroke gas engine 


� Weight approx. 900 kg 


2 

3 

1 

54/55

Biomethane supply contract with guaranteed remuneration 

according to the Renewable Energy Sources Act 

CHP module and biomethane in 

a bundle 

As a completely new concept, Viessmann 

now offers its Vitobloc combined heat and 

power modules as a bundle, with a supply 

contract for environmentally responsible 

biomethane. 

Amortisation through savings in 

electricity costs 

Apart from reducing the environmental load, 

the economic aspects are also particularly 

lucrative for system operators. This is based 

on the power generated by the CHP module 

being exported into the grid over a period of 

20 years at guaranteed prices. 

According to the Renewable Energy Sources 

Act the remuneration for using biomethane 

is significantly more attractive than when 

operating with fossil fuels like natural gas. 

This enables the system to pay for itself 

through its operation, the investment 

becomes viable and you earn on top. 

Biomethane supply 

Arranging the supply of biomethane via 

Viessmann is as convenient for the system 

user as purchasing eco power. Initially, 

suppliers like farmers, utilities and operator 

associations produce biogas from sustainable 

materials or from organic waste using their 

own plants. The raw biogas is then upgraded 

to biomethane and fed directly into the gas 

grid. Users require no storage tanks. 

CHP module operators obtain an authenticated 

certificate of origin with their supply contract 

covering the delivery of biomethane which 

identifies the supply quality and amount. This 

environmental certificate is recognised and 

forms the basis for the remuneration of the 

power generated from biomethane. 

Guaranteed supplies 

Concluding the contract guarantees the 

supply of biomethane for the duration of at 

least ten years. An extension to 20 years is 

available to make full use of the guaranteed 

returns according to the Renewable Energy 

Sources Act.

Production company 

for biogas and 

biomethane 

Biogas plant 

Upgrading raw 

biogas to 

biomethane 

Biomethane 

Feed-in 

Calculation 

Customer = operator of the CHP 

module and recipient of biomethane 

(e.g. for a local heating network) 

Heating centre 

1 

Feed-out 

2 3 

1 Vitomax 200-LW 

2 Vitobloc CHP module 

3 Heating water buffer cylinder 

Customer for the heat 

generated by the CHP module 

Detached houses 

School 

Housing estate 

Export of 

100 % eco power 

Biomethane contract 


� Power generated by the CHP module is exported into the public grid and 

remunerated according to the Renewable Energy Sources Act, with prices 

guaranteed for 20 years 

� Biomethane is produced from sustainable raw materials and is 

consequently CO2 neutral 

� Use of home-grown fuels for the production of biogas 

� Biomethane utilises the gas grid as a storage facility and requires 

no additional storage area 

� Stable prices for biomethane and therefore foreseeable running costs 

� A conventional natural gas supply is the only requirement for the supply of 

biomethane 

� Proven CHP technology with more than 1000 installed systems 

� Meets the terms of the Renewable Heat Act (EWärmeG) [Germany] 

� The biomethane can also be used to operate a peak load boiler 

56/57

New developments – biomass 

4 to 13,000 kW


VITOLIGNO 300-H 

Pellet and woodchip boiler with high efficiency 

through a rotary combustion chamber 

For pellets and woodchips G30/W35 

60 to 150 kW 

EUCOlino 

Turnkey, compact small systems for the 

production of biogas in modular design, 

18 to 70 kWel 58/59

Pellet and 

woodchip boilers 

VITOLIGNO 300-H 

Pellet and woodchip boiler 

60 to 150 kW 

Efficient combustion on a flat moving grate 

Unique two-stage combustion principle 

The Vitoligno 300-H solid fuel boilers 

for pellets and woodchips extends the 

comprehensive range of products and 

services from Viessmann in the lower 

output range from 60 to 150 kW. 

The combustion principle utilising a flat 

moving grate and a rotary combustion 

chamber is unique. These features ensure 

consistently low emissions and compliance 

with the Federal Immissions Act (BImSchV) 

[Germany]. 

Efficient combustion on a flat 

moving grate 

A screw conveyor fills the flat moving grate 

continuously with pellets or woodchips. 

Whilst the ember bed is static, the moving 

grate ensures an even pre-combustion and 

degassing with a sub stoichiometric air 

supply. 

The variable feed velocity of the long grate 

and the even flow of fresh air from below 

through the ember bed dry the fuel, subject to 

its grain size and moisture content, as well as 

its effective degassing (primary combustion). 

High efficiency through rotary 

combustion chamber 

The combustion gases released during 

primary combustion are then routed into 

the rotary combustion chamber. The rotation 

results in a longer dwell time and an effective 

mixing of combustion gases and secondary 

air. As a result, the Vitoligno 300-H achieves 

an almost complete burnout (secondary 

combustion), lower emissions and a high 

efficiency of 92 percent. 

Compact and easy to maintain 

The vertical arrangement of the heating 

surfaces makes the Vitoligno 300-H a 

solid fuel boiler with genuinely compact 

dimensions. The automatic cleaning of 

the heating surfaces increases the boiler 

availability, extends the maintenance intervals 

and reduces the operating costs.

Vitoligno 300-H 

1 Fuel supply 

2 Automatic ignition 

3 Flat moving grate 

4 Rotary burner 

5 Vertical heat exchanger 

6 Automatic cleaning 

Pellets 

Woodchips 

6 

Vitoligno 300-H 

Pellet and woodchip boiler 

60 to 150 kW 


� Staged combustion in the primary and secondary combustion chambers for 

consistently high efficiency and clean combustion (BImSchV) 

� Flat moving grate for drying and degassing fuels of different grain size and 

moisture content (G50, W35, pellets, woodchips) 

� Flexible supply (screw conveyors, horizontal, vacuum discharge) 

� Automatic ignition and combustion control with Lambda probe 

and temperature sensor 

� Negative pressure boiler prevents the combustion of low temperature 

carbonisation gas in the fuel supply 

� Automatic cleaning of the heating surfaces and fully automatic ash removal 

improve the availability and increase the maintenance intervals 

� Ecotronic control unit with graphic display for a high level of operating 

convenience 

� Compact dimensions 

� Use in public buildings, municipal authorities, residential developments, tourism 

(hotels, leisure facilities), agriculture/forestry and the wood-processing trade 

Specification 

� Vitoligno 300-H, 60, 80, 100, 120, 150 kW 


� Boiler efficiency: > 92 % 

� Dimensions (height x width): 1700 x 800 mm (up to 80 kW) 

1950 x 1000 mm (from 100 kW) 



5 

3 

4 

2 

1 

60/61

Biogas 

EUCOlino – small system in a modular design 

18 to 70 kW el 

Standard systems for efficient 

biogas plants 

Since 1995 the specialist Schmack Biogas, 

a member of the Viessmann Group, has 

been setting benchmarks for biogas plants 

with high efficiency. The company’s core 

competence lies in the area of fermentation of 

fuel crops and agricultural fertiliser, or slurry. 

The most important basis for these efficient 

biogas plants are standard systems ranging 

from 18 kWel to 20 MWGas . 

EUCOlino – small system in a modular 

design 

EUCOlino makes its case with low investment 

outlay and a space efficient modular design. 

This compact biogas plant enables smaller 

agricultural enterprises, in particular, an entry 

into biogas production. In addition, there is 

the opportunity to make use of the attractive 

remuneration in accordance with the 

Renewable Energy Sources Act, as well as 

the intelligent heat utilisation concept for 

production and accommodation buildings 

on site. 

Flexible enough for any location 

The biogas plant can be flexibly adapted to the 

individual conditions on site. Any combination 

of substances from 0 to 100 percent liquid 

manure are suitable for charging the system. 

According to the materials available on site, 

four different gas engines from 18 to 70 kWel with three digester sizes (97, 150, 247 m³) 

are available. In addition, the biogas plant 

can be extended with a charger, gas sack, 

separator for thickening the liquid manure 

and/or a RotaCut. 

Uncomplicated installation and rapid 

commissioning 

The EUCOlino is pre-assembled at the factory, 

tested in all its safety aspects and is delivered 

ready for use. Depending on the version, the 

compact biogas plant requires only between 

65 and 115 m² floor space.

EUCOlino layout 

1 Charger 

2 Digester 

1 2 3 

– Agitator 

– Gas draw-off pipe 

– Heat exchanger for liquid manure 

– Metrology 

METHANOS high performance bacteria for 

high gas yield 

Schmack microbiologists have been able 

to isolate high performance bacteria, which 

can be added to increase the biogas yield on 

two fronts. Laboratory and field tests have 

indicated that the specific gas yield from the 

substances used increases by up to 20 percent 

when METHANOS is used. In addition, the 

biogas plant can process up to twice as much 

raw material and therefore double its capacity 

to produce heat and power. 

3 All-In-One 

– System control 

– Pump technology 

– Heat distribution and separation 

– Gas compressor 

– CHP module 

– Emergency cooler 


� Uncomplicated installation and rapid commissioning 

– pre-assembled in the factory 

– all safety functions have been tested 

– delivered ready for use 

� Small footprint (65 to 115 m2 ) 

� Easy integration into the existing infrastructure 

� Flexible use of substances (0 to 100 % liquid manure or fuel crops) 

� Highly economical 

� Low investment outlay and cost of raw materials 

� Heat utilisation for production and accommodation buildings on site 

� Attractive remuneration to Renewable Energy Sources Act 


Methanos – high performance bacteria 

EUCOlino 

METHANOS 

62/63

New developments – heat pumps 

1.5 to 2000 kW 

Domestic ventilation systems


VITOCAL 350-G 

Brine/water heat pump for high DHW convenience in detached 

and houses and apartment buildings (DVWG-compliant) 

7.2 and 18.3 kW, 

prepared for linking in a cascade with several heat pumps 

VITOCAL 300-G 

Brine/water heat pump with minimum noise development 

at maximum efficiency 

5.9 to 17 kW 

in five output sizes 

VITOCAL 200-G 

Brine/water heat pump with an excellent price/performance 

ratio and low noise development 

5.8 to 17.2 kW 

in five output sizes 

VITOCAL 242-S 

The only compact split heat pump with integral solar function, 

with particular focus on new build 

3 to 10.6 kW 

DHW cylinder capacity: 220 litres 

VITOCAL 222-S 

Affordable compact split heat pump 

(air/water) 

3 to 10.6 kW 

DHW cylinder capacity: 170 litres 

VITOCAL 300-G Pro Series 

Brine/water and water/water heat pump for high output with 

integral energy statement in a standard compact design 

93 to 246 kW 

125 to 304 kW 

VITOCAL 350-HT 

The only high temperature heat pump for high DHW demand, 

with natural refrigerant 

60 to 100 kW 

VITOVENT 300-F 

Domestic ventilation unit for low energy and passive houses 

with up to 93 % heat recovery 

in combination with an air/water or brine/water heat pump 

64/65

Brine/water 

heat pumps 

VITOCAL 350-G 

Brine/water heat pump 

7.3 and 18.3 kW, prepared for cascade installations 

Display of the Vitotronic 200 heat pump control unit 

Vitocal 350-G – for high DHW convenience 

in detached houses and apartment 

buildings 

The new Vitocal 350-G brine/water heat pump 

is particularly designed for DVGW-compliant 

DHW heating. With its flow temperature of 

70 °C, this heat pump is also perfect for 

modernisation projects. The Vitocal 350-G 

can generate temperatures in excess of 60 °C. 

Generous equipment level for the 

Vitotronic 200 that is capable of 

communicating 

The Vitocal 350-G can also be combined with 

the Vitocal 300-G in master/slave applications. 

The sound-optimised appliance design 

ensures a particularly quiet operation. The 

easy-to-operate Vitotronic 200 is used as 

a control unit. It includes, amongst other 

features, an integral differentiating energy 

statement facility, as well as the ability to 

communicate via LON. 

Low running costs 

The innovative RCD system (Refrigerant 

Cycle Diagnostic system, which provides a 

continuous refrigerant cycle control), ensures 

high efficiency at any operating point. The 

use of an electronic expansion valve (EEV) 

and high efficiency pumps (type BWC) further 

contribute to a reduction of running costs. 

The integrated energy statement facility for 

heating and domestic hot water meets the 

subsidy terms of the BAFA.

Vitocal 350-G 

1 Vitotronic heat pump control unit 

2 Condenser 

3 Large area evaporator for an efficient 

heat transfer 

4 Hermetically sealed Compliant scroll 

compressor 

Two-stage Vitocal 350-G (master/slave) 

3 

1 

2 

4 

Vitocal 350-G 


7.3 to 18.3 kW, in cascades up to 36.6 kW 


� DVGW-compliant DHW heating 

� High DHW convenience 

� Possible cylinder temperatures in excess of 60 °C 

� High efficiency all year round at any operating point through the innovative 

RCD system (Refrigerant Cycle Diagnostic system, which provides a 

continuous refrigerant cycle control) 

� Extremely quiet operation < 42 dB(A) through sound-optimised appliance design 

� Vitotronic 200 control unit with energy statement facility 

(meets the BAFA subsidy terms) 

� Master/slave solutions for high flexibility, for example combination with the 

Vitocal 300-G for maximum efficiency in heating mode with simultaneously 

high DHW temperature 

Specification 

� Output: 7.3 and 18.3 kW 

� BWC 7.3 kW with integral HE pumps (brine/HC) 

� COP up to 4.6 at B0/W35 °C to EN 14511 

� Sound power level ≤ 42 dB(A) 

� Dimensions (height x width x length): 

1049 x 600 x 845 mm (7.3 kW) 

1267 x 780 x 1085 mm (18.3kW) 

� Weight: 135/322 kg 


66/67

Brine/water 

heat pumps 

VITOCAL 300-G 


5.9 to 17 kW, in five stages 

Vitocal 300-G with Vitocell 100-V DHW cylinder 

Vitocal 300-G – high output and quiet 

operation 

The powerful Compliant scroll compressor 

fitted in the Vitocal 300-G heat pump is 

outstanding on account of its high operational 

safety, reliability and especially quiet operation. 

Essentially, this is due to the twin sound 

insulation that includes anti-vibration mounts 

to prevent structure-borne noise and insulates 

the casing against air-borne noise. At the 

same time, the compressor guarantees the 

highest coefficient of performance (COP up 

to 4.9) and flow temperatures up to 60 °C. 

The Refrigerant Cycle Diagnostic System 

(RCD) monitors the refrigerant circuit in the 

Vitocal 300-G permanently and, in conjunction 

with the electronic expansion valve, ensures 

the highest efficiency at any operating point, 

which results in high seasonal performance 

factors. In addition, the energy statement 

facility that qualifies the system for the receipt 

of subsidies has already been integrated. 

Vitotronic 200, with energy statement 

facility 

The operating philosophy of the Vitotronic 200 

is simple and intuitive, thanks to the plain text 

users prompts and graphic display. It is in line 

with the Viessmann operating concept for 

all heat sources. Amongst other features, 

the Vitotronic 200 is able to generate a 

differentiated energy statement and is 

capable of communicating via LON.

Vitocal 300-G 


2 Condenser 


heat transfer 

4 High efficiency pump 


compressor 

Two-stage Vitocal 300-G 

(master/slave) 

3 

2 

1 

4 

5 


� Brine/water heat pump with maximum efficiency for new build and 

modernisation in detached houses and apartment buildings 

� Maximum flow temperatures up to 60 °C 

� High efficiency all year round at any operating point through the innovative 

RCD system with electronic expansion valve 

� Extremely quiet operation < 42 dB(A) through sound-optimised appliance design 

� Low running costs through high COP up to 4.9 at B0/W35 °C to EN 14511 and 

integral HE pumps (for the BWC) 

� Vitotronic 200 control unit with energy statement facility 

(meets the BAFA subsidy terms) and standard operating concept 

� Master/slave solutions for high flexibility, for example combination of a 

Vitocal 300-G and a 350-G for DVGW-compliant DHW heating 

Specification 

� Output: 5.9 to 17 kW (available as BW, BWC and BWS) 

� Type BWC with integral HW pumps (brine and HC) 


� Sound power level < 42 dB(A) 

� Dimensions (height x width x length): 1049 x 600 x 845 mm 



Vitocal 300-G 


5.9 to 17 kW 

68/69

Brine/water 

heat pumps 

VITOCAL 200-G 


5.8 to 17.2 kW 

Vitocal 200-G with Vitocell 100-V DHW cylinder 

Vitocal 200-G – the affordable heat pump 

with a high flow temperature 

The Vitocal 200-G brine/water heat pump, 

with its excellent price/performance ratio, 

is the perfect choice for detached houses 

and apartment buildings; it is compact and 

attractively priced. The weather-compensated 

Vitotronic 200 control unit allows two separate 

heating circuits to be connected. With its 

output spectrum of 5.8 to 17.2 kW in mono 

mode, it delivers a convenient heat supply all 

year round. 

By means of its innovative technology, 

that includes the efficient Compliant scroll 

compressor, the Vitocal 200-G can deliver 

a maximum flow temperature of 60 °C. 

This makes the Vitocal 200-G an all-round 

complete entry model for new build. 

Electric booster heater as an option 

In countries with low electricity costs, the 

heat pump can be operated in mono energetic 

mode using an electric booster heater. 

This booster heater can also be used to assist 

in drying out a building or when the system 

is being serviced. The heating contractor fits 

the booster heater for a specific period using 

a multi connect system. After its deployment, 

it can be reused in other installations (for 

example Vitocal 350-G/300-G).

Vitocal 200-G 


2 Condenser 


heat transfer 


compressor 

Display of the Vitotronic 200 heat pump control unit 

3 

2 

4 

1 

Vitocal 200-G 


5.8 to 17.2 kW 


� Attractively priced entry model for detached houses and apartment buildings 

� Maximum flow temperatures up to 60 °C 

� The appliance is fully assembled and equipped at the factory 

� Low operating noise through sound-optimised appliance design 

� Heat meter can be retrofitted (option) 

� Vitotronic 200 control unit with user prompts and standard operating philosophy 

� Easy to install through complete equipment level and pre-assembly 

Specification 

� Output: 5.8 to 17.2 kW 


� Sound power level < 45 dB(A) 

� Dimensions (height x width x length): 1049 x 600 x 845 mm 



70/71

Split air/water 

heat pumps 

VITOCAL 242-S 

Split air/water heat pump with solar function 

3 to 10.6 kW 

Vitotronic 200 heat pump control unit 

Split Vitocal 242-S heat pump for new 

build and modernisation 

Split heat pumps are characterised by a 

separation into a quiet internal unit and an air 

handling external unit. This design does not 

require extensive wall outlets and routing of 

air ducts. These units are best suited to new 

build projects and offer themselves as heating 

system only, or as systems that provide 

heating and cooling. 

The Vitocal 242-S is the only split heat pump 

with an integral solar function for solar DHW 

heating. The compact heating centre features 

a high proportion of pre-assembled 

components which significantly reduces 

the installation effort and risks. 

Efficient and economical 

The split heat pump operates with astonishing 

efficiency in partial load operation. The 

inverter technology accurately matches 

the compressor output to the current heat 

demand through a modulating operation. 

This results in high efficiency at any 

operating point. 

Compact internal units 

Their classic design invites installation near 

the living space (e.g. in a utility room). 

They include the hydraulics, such as the 

heat exchanger, a heating circuit pump, 

an instantaneous heating water heater 

and a 3-way diverter valve. 

Heat pump control unit with user prompts 

The Vitotronic 200 is structured logically, 

and its displays are easy to follow. The large 

backlit display offers a good contrast, making 

it easy to read. The graphic interface will 

also display heating and cooling curves. The 

solar yield is also displayed if a solar thermal 

system is connected.

Vitocal 242-S 

internal unit 

1 Heating lance 

2 Enamelled DHW cylinder 

3 Vitotronic 200 heat pump 

control unit 

4 Integral indirect solar coil 

5 Diverter valve, heating/DHW 


7 Heat pump condenser 

1 

7 

2 

4 

3 

5 

6 

8 

9 10 

Vitocal 242-S 

Split air/water heat pump 

3 to 10.6 kW 


� Attractively priced compact air/water heat pump for new build with integral 

solar function 

� Convenient through reversible version that enables heating and cooling 

� Inverter compressor for optimum output matching to the heating and 

cooling demand 

� High efficiency in partial load operation through output-controlled compressor 

� Maximum flow temperatures up to 55 °C at –15 °C outside temperature 

� Low sound power level of the external unit in partial load operation through 

variable speed fan and compressor 

� Refrigerant pipework requires no frost protection 

� Easy routing of the refrigerant pipes 

� Reduced investment outlay 

� Easy-to-operate Vitotronic 200 heat pump control unit with plain text 

and graphic display 

� Solar connection for DHW heating 

� Easy and affordable installation without major wall outlets 

Specification 

� Output: 3/5.6/7.7/10.6 kW (A2/W35 °C) 

� COP up to 3.5 (A2/W35 °C) to EN 14511 

� Sound power level < 63 dB(A) (external unit) 

� 220 litre capacity DHW cylinder 


Vitocal 242-S 

external unit 

8 Evaporator 

9 Fan 

10 Compressor 

72/73

Split air/water 

heat pumps 

VITOCAL 222-S 

Split air/water heat pump with integral DHW cylinder 

3 to 10.6 kW 

Vitotronic 200 heat pump control unit 

Vitocal 222-S split heat pump 

With the Vitocal 222-S, a particularly 

affordable compact split solution is introduced 

for new build projects. This compact heating 

centre features a high proportion of preassembled 

components, which significantly 

reduces the installation effort and risks. 

The Vitocal 222-S features a DHW cylinder 

with 170 litre capacity. 

Efficient and economical 

The split heat pump operates with astonishing 

efficiency in partial load operation. The 

inverter technology accurately matches 

the compressor output to the current heat 

demand through a modulating operation. 

This results in high efficiency at any 

operating point. 

Compact internal unit with 

Vitotronic 200 control unit 

This attractive internal unit can be installed in 

the living space (for example in a utility room). 

It includes the essential hydraulic equipment, 

such as the heat exchanger, a heating circuit 

pump, an instantaneous heating water heater 

and a 3-way diverter valve. 

Heat pump control unit with user prompts 

The Vitotronic 200 is structured logically 

and its displays are easy to follow. The large 

backlit display offers a good contrast, making 

it easy to read. The graphic interface will also 

display heating and cooling curves. 

Extensive service from Viessmann 

The heating contractor can obtain the 

refrigeration certificate required for the 

installation through a Viessmann training 

course. If required, the technical service from 

Viessmann can carry out the commissioning.

Vitocal 222-S 

internal unit 

1 Enamelled DHW cylinder 

2 Vitotronic 200 heat pump 

control unit 

3 Cylinder indirect coil 

4 Diverter valve, heating/DHW 


6 Heat pump condenser 

6 

1 

3 

2 

4 

5 

7 

Vitocal 222-S 

Split air/water heat pump 

3 to 10.6 kW 


� Affordable compact air/water heat pumps, mainly for new build 

� Inverter compressor for optimum output matching to the heating demand 

� High efficiency in partial load operation through output-controlled compressor 

� Maximum flow temperatures up to 55 °C at –15 °C outside temperature 

� Low sound power level in partial load operation through variable speed fan 

and compressor 

� Refrigerant pipework requires no frost protection 

� Easy routing of the refrigerant pipes 

� Reduced investment outlay 

� Easy-to-operate Vitotronic 200 heat pump control unit with plain text and 

graphic display 

� Convenient through reversible version that enables heating and cooling 

� Easy and affordable installation without major wall outlets 

Specification 

� Output: 3/5.6/7.7/10.6 kW (A2/W35 °C) 

� COP up to 3.5 (A2/W35 °C) to EN 14511 

� Sound power level < 63 dB(A) (external unit) 

� 170 litre capacity DHW cylinder 


8 9 

Vitocal 222-S 

external unit 

7 Evaporator 

8 Fan 

9 Compressor 

74/75

Brine/water and 

water/water heat pumps 

VITOCAL 300-G 

Pro Series 

93 to 246 kW (brine/water heat pump) 

125 to 304 kW (water/water heat pump) 

Vitocal 300-G, 186 and 246 kW 

The modular standard heat pump for 

high output 

In the shape of the new Vitocal 300-G 

Pro Series heat pump, Viessmann extends 

the company’s range of standard heat pumps 

up to 300 kW. The Pro Series features 

all characteristics of the highly efficient 

Vitocal 300-G series. The five output sizes 

enable most requirements from residential 

buildings and commerce to be reliably met. 

Standardising these appliances enables quick 

and comprehensive engineering, as well as 

providing transparent calculation parameters. 

In its class, the Vitocal 300-G Pro Series is 

the only heat pump with an integral energy 

statement facility. 

Higher output, up to 1200 kW, can be 

achieved by linking up to four Vitocal 300-G 

Pro Series in a single cascade. 

Pre-assembled electrical equipment 

The electrical equipment is already integrated 

inside the heat pump casing as standard. 

Factory-fitted contactors for fail-safe primary 

and secondary pumps, as well as protection 

for the compressor, guarantee little installation 

effort, as well as the safe and rapid system 

integration of the heat pump.

Proven and reliable technology 

The control philosophy was adopted from 

the Vitocal series for detached and two-family 

houses. Here too, the Refrigerant Cycle 

Diagnostic System (RCD) ensures a constant 

efficiency check and safeguards the efficient 

and reliable function at any operating point 

through the interaction between the electronic 

expansion valve (EEV) and the extensive 

sensor technology. 

The Vitotronic 200 regulates up to three 

heating circuits and the DHW cylinder; it 

ensures a pleasant ambience on hot summer 

days thanks to its natural cooling function. 

An extensive range of adjustments and 

system optimisation is made possible from 

anywhere, via the internet or mobile phone 

utilising the Vitocom 300 communication 

module that is available as an option. 

Space efficient design 

The hermetically sealed construction of the 

Compliant scroll compressors and the R410A 

refrigerant, both significantly reduce the space 

required for siting these appliances. With a 

width of just 88 cm, a facility to be lifted onto 

a pallet truck, and removable casing panels, 

this unit is very easy to handle. 

Installation room with long term testing 


� Standard heat pump range up to 300 kW based on the Vitocal 300-G series 

� The only heat pump in this output range with an integral energy statement facility 

� Low running costs through a high COP of 4.7 at B0/W35 °C to EN 14511 

� High efficiency all year round at any operating point through RCD system with 

electronic expansion valve from Viessmann 

� Maximum flow temperatures up to 60 °C (brine 5 °C) 

� Proven Vitotronic 200 control unit for up to three heating circuits and 

cascade function 

� Vitocom 300 communication unit for optional optimising and monitoring 

� Separate brine/water and water/water versions 

� Low operating noise through sound-optimised appliance design (3-D concept) 

� Integral cascade function for up to four heat pumps (maximum 1200 kW) and 

optional connection for additional heat sources 

� Special water/water version for trouble-free operation, even without 

separating heat exchanger 

� Easy handling through body with pallet truck facility and partial dismantling 

� Ready to use connection for fail-safe primary and secondary pumps 

� Little electrical installation effort through integral mains isolator and separate 

fuse/MCB protection for compressor and consumer 

Specification 

� Heating output: 93 to 246 kW (brine/water), 

125 to 304 kW water/water) 

� Sound power level: 61 to 65 dB(A) 

� COP up to 4.7 (B0/W35 °C) to EN 14511 

� Dimensions (height x width x length): 

1545 x 880 x 2520 mm (246 kW) 

� Weight: 1360 kg (246 kW) 


Vitocal 300-G 

Brine/Water heat pump, 93 to 246 kW 

Water/water heat pump, 125 to 304 kW 

76/77

High temperature 

heat pumps 

VITOCAL 350-HT 

High temperature heat pump for DHW heating 

60 to 100 kW 

Heat pump with natural refrigerant 

The high temperature heat pump, 

Vitocal 350-HT, extends the heat pump range 

by a model operating with CO2 – the natural 

refrigerant. The ready-to-connect drive unit is 

designed for rapid provision of plenty of water 

at temperatures up to 90 °C as required, for 

example, in spa baths, wellness facilities and 

hotels. With CO2 as a refrigerant, these high 

temperatures can be achieved with very high 

efficiency according to the instantaneous 

water heater principle. 

In their operation, the Vitocal 350-HT achieves 

a coefficient of performance not possible with 

conventional refrigerants. Apart from providing 

DHW heating, the Vitocal 350-HT can also be 

used to generate cold water. By combining 

both functions simultaneously, COP levels up 

to eight can be achieved. 

Without peers in Europe 

In Europe, KWT offers a fully developed 

product in this market segment. The 

Vitocal 350-HT is the only CO2 heat pump 

with an output up to 100 kW manufactured 

in series.

Process water heating using waste heat from the primary source 

Vitocal 350-HT 

High temperature heat pump 


� The only CO2 heat pump manufactured in series with this output level – 

peerless in Europe 

� Suitable for projects with a high DHW demand 

� DHW heating according to the instantaneous water heater principle from 

10 to 65 °C or 40 to 90 °C 

� Natural refrigerant CO2 � High COP for low energy costs 

� Parallel cold water generation possible 

� Touchscreen control unit with user prompts 

� May be installed internally or externally for greater flexibility 

� Little space required due to compact dimensions 

� SVGW and DVGW-compliant DHW heating 

Specification 

� Heating output: 60 to 100 kW, subject to heat source 

� Flow temperature from 65 to 90 °C 

� COP of 3.4 at B0/W10 °C to 65 °C 

� COP for DHW heating up to 4.4 

� Sound power level 67 dB(A) 

� Dimensions (length x width x height): 1290 x 1140 x 1861 mm 



60 to 100 kW 

78/79

Ventilation towers 

VITOVENT 300-F 

Domestic ventilation systems for low energy and passive houses 

Vitovent 300-F ventilation tower with Vitocal 242-S 

Integrated system with low space requirements 

The slimline shape and product design of 

the Vitovent 300-F domestic ventilation unit 

harmonises visually with the compact heat 

pumps from Viessmann. The functions of 

both appliances are perfectly matched to each 

other and combine the benefits of an integral 

system where space is at a premium. 

The combination of the Vitovent 300-F 

and a compact Vitocal heat pump create a 

complete air conditioning system for high 

living comfort. In both function and visual 

appeal, it represents a perfect system solution 

for low energy and passive houses alike. 

Domestic ventilation with up to 

93 percent heat recovery 

The Vitovent 300-F ventilation tower claws 

back up to 93 percent of the latent heat 

in extract air, using it to heat the incoming 

outdoor air. For passive houses, the 

Vitovent 300-F offers the option of providing 

air heating exclusively – an excellent addition 

to the existing range of ventilation appliances. 

One control unit for Vitovent and Vitocal 

The Vitovent 300-F is operated and controlled 

by the new Vitotronic 200 of the respective 

heat pump. The control unit is an integral part 

of all compact heat pumps from Viessmann 

and enables, on account of its graphic 

interface, a straight-forward logical operation 

with plain text user prompts.

Flat duct system for quick assembly 

The new flexible, easily and quickly installed 

plastic flat duct system and the familiar 

Vitovent 300 accessories can be used with 

the Vitovent 300-F. Its low height enables 

an integration of this duct into ceiling/floor 

structures and the duct can be subjected to 

mechanical loads. The conventionally applied 

sealing with cold shrink tape is not required. 

The smooth anti-bacterial surface coating 

ensures hygienic air handling, permanently. 

A silencer is already integrated in the 

distribution box. 

Ventilation air 

valve 

Plastic flat duct system for a rapid and straight-forward installation 


� Optional combination with compact air and brine heat pumps 

� Slimline design, together with use of compact heat pumps facilitates the 

creation of a matching integrated system on a small footprint 

� Design and functions matched to the compact Vitocal heat pumps 

� Ventilation unit for controlled domestic ventilation with up to 93 % heat recovery 

� Efficient DC motors for low power consumption 

� Flexible air conditioning – ideal system solution for low energy and passive 

houses 

� Convenient control of Vitocal and Vitovent via the new Vitotronic 200 of the 

heat pump 

� In conjunction with the optional air heater bank, also practical as air heating 

system (for passive houses) 

� Utilisation of the familiar Vitovent 300 range of accessories 

� Optional active cooling in combination with Vitocal 242-S/222-S through 

reversible refrigerant circuit 

� Output range tailored to 250 m³/h or a living space of around 170 m² 

(detached house) 

� Excellent air quality through fresh outdoor air and optional pollen filter 

� Dimensions (height x width x depth): approx. 1485 x 400 x 680 mm 

Available: 2012 

Flat duct 

system 

Air distribution box 

Extract air valve 

Vitovent 300-F 

Ventilation tower 

80/81

Solar thermal 

Roof integration and fixing systems 

for solar collectors 

Collectors arranged in two rows 

Roof integration in harmony with its 

surroundings 

New sets of accessories are now available 

which allow Viessmann solar collectors to 

blend in even more unobtrusively into the 

roof cover. They are suitable for installing 

collectors in single or double rows and may 

be used for horizontally or vertically oriented 

collectors. The installation set is compatible 

with corrugated roof tiles, plain tiles, barrel 

tiles and slate; on request they are also 

available painted in RAL colours. 

In its standard form, the accessories, 

including side flashing, are supplied to cover 

the collector connections. This penetrates 

the roof skin below the collector flashing. 

The water-bearing level lies beneath the 

collector. The water impermeability of the 

roof skin is therefore assured – irrespective 

of whether a roof membrane is provided or 

not. This also applies if the collector or the 

collector glass is damaged. 

For steeply sloping roofs, the design option 

with additional flashing for the top and bottom 

is available. 

Optional installation set for easier 

installation 

In addition, installation sets can be ordered 

that include all necessary battens, supporting 

timbers and screws. This assures the contractor 

that these components comply with the 

stability verification and that the required 

fasteners are approved to DIBt (German 

Institute for Construction).

Vitosol 200-F 

1 All-round folded aluminium frame, 

available in all RAL colours 

2 Robust, transparent flashing 

3 Meander-shaped absorber 

4 Thermal insulation 

Flat roof supports with a fixed angle 

Experience has shown that in most cases, 

supports with a fixed angle are adequate for 

horizontally and vertically oriented collectors. 

Viessmann offers a practical solution for this 

in three versions that provide angles of 30, 

45 and 60 degrees. The support brackets are 

made from weather-resistant aluminium, and 

installation is straight-forward and quickly 

accomplished. 

Solar collectors mounted this way are 

rated for a snow load of 1.5 kN/m2 and can 

withstand gale force wind speeds of up to 

150 km/h (94 mph). 

1 

Flat roof supports with a fixed angle 

2 

3 

4 

Roof integration and fixing 

systems for solar collectors 

82/83

DHW cylinders 

VITOCELL 100-V 

Vitocell 100-V (type CVS) with solar connection set 

Ready-to-connect pump assembly 

for the Vitocell 100-V 

The new connection set facilitates an easy 

and quick connection on the solar side to 

the electric solar cylinder, Vitocell 100-V 

(type CVS), with 200 or 300 litre capacity. 

The complete set comprises the following: 

solar pump assembly with solar control unit, 

pre-assembled and thermally insulated 

pipework, as well as all necessary installation 

accessories, such as fittings, sensor 

wells, etc. 

All solar circuit fittings/valves are already 

integrated in the pump assembly. 

A corrugated solar pipe (Double O-Ring) 

or a locking ring are used for the connection 

on the solar side. The integral thermosiphon 

loop at the solar flow reduces the heat loss 

from the DHW cylinder.

Vitocell 100-V 

Type CVS 

1 Solar pump assembly with three-stage 

circulation pump, Vitosolic 100, safety 

assembly with pressure gauge, safety 

valve, ball valves, fill valve, flow meter 

indicator and air separator 

2 Magnesium or impressed current anode 

3 Interior cylinder and internal indirect 

coils made of steel, with Ceraprotect 

enamel coating 

4 Immersion heater 

5 Highly effective all-round thermal insulation 

made from rigid polyurethane foam 

Solar connection set 

1 

5 

3 

Solar pump assembly components at a glance 

� Vitosolic 100 (type SD1) 

� Three-stage circulation pump 

� Safety assembly with pressure gauge and safety valve 

� Optional connection, expansion vessel (locking ring 22 mm) 

� Ball valves in flow and return 

� Flushing and filling facility 

� Flow rate indicator 

� Air separator 

2 

4 

Vitocell 100-V (type CVS) 84/85 

DHW cylinder 

200 and 300 litre capacity 

FR

DHW cylinders VITOCELL 

Jacket closure system 

Time saving closure system for 

Vitocell thermal insulation 

Increasing demands for efficient and sustainable 

heating systems put DHW cylinders under 

the spotlight. Viessmann now offers thermal 

insulation from its own production that makes 

their installation much easier for heating 

system installers. 

The high grade, removable thermal insulation, 

made from polyester fleece and the associated 

time-effective installation is unique in the 

market. The quick and reliable encasing of 

Vitocell DHW cylinders is made as easy as 

one-to-three by the patented clip system. 

Apart from being much faster to apply, the 

new insulation material belongs to a higher 

fire safety class, features a lower thermal 

conductivity and reduced chimney effects.

1 Thermal insulation jacket with 

pre-assembled edge profiles 

2 Clip closure 

3 Cover strip 

Installation steps 

Clipping in closure 2 into the edge profile of 

the thermal insulation jacket 1 . 

By pushing the thermal insulation 1 together, 

clip closure 2 is pushed into its next respective 

locking position. 

Finally ensure that clip closure 2 is fully 

pushed together. 

Fit cover strip 3 . 

1 

1 

1 

3 

2 2 

� � 

2 

2 

3 

1 

1 

Vitocell 86/87 

Jacket closure system

New developments – control systems

Standard range of Vitotronic control units 

For heat sources from 1.5 to 2000 kW 

Wireless Vitotrol 300 RF remote control for convenient 

operation from the living space 

Vitotrol App for operating the heating system from 

a smartphone 

Spare part App for contractors 

Energy savings check App for everyone 

Product App with new developments and applications 

88/89

Control technology Standard range of Vitotronic control units 

for small/medium-sized boilers, wall mounted boilers 

and heat pumps 

Standard control units from 

1.5 to 2000 kW 

Demands made of efficient, multi mode 

and user friendly heating systems are ever 

increasing. Consequently, greater attention 

is being focused on the control unit. 

In response, with the Vitotronic 200/300, 

Viessmann now offers a standard range 

of control units for all small boilers, wall 

mounted boilers, medium-sized boilers 

and heat pumps. 

Direct access: operating program 

and set room temperature 

The new and easy to understand Vitotronic 

puts the most important controls, such as 

the operating program and the set room 

temperature, right at your fingertips. The 

graphic display of the current conditions of 

the heating system are also very convenient. 

At the second control level, further settings 

and a clear menu structure are available. 

Menu-guided operation 

The operation, assisted by user prompts, is 

easy and intuitive. Standard controls, a large 

backlit graphic display with several lines of 

plain text, a high in contrast mono-chrome 

display and a context-sensitive help function 

that is accessible via the “?” key, all contribute 

to the ease of use. Special functions such as 

the heating curve, solar yield and switching 

times are displayed graphically. 

With integral solar control function 

The Vitotronic 200 regulates applications 

comprising solar central heating backup, two 

mixed and one directly connected heating 

circuit. The SM1 solar control module can 

be used for solar DHW heating and central 

heating backup with all floorstanding oil and 

gas boilers, as well as with all wall mounted 

boilers. Also in connection with the Vitotronic 

300-K cascade control unit.

Oil/gas boilers Vitotronic 200 

Vitotronic 200 

Type HO1B with Type KW6B with 

– Vitodens 200-W – Vitocrossal 300 

– Vitodens 300-W 

– Vitodens 2x2-F 

– Vitodens 3x3-F 

– Vitodens 222-W 

– Vitoladens 300-W 

– Vitoladens 333-F 

– Vitopend 200-W 

– Vitoladens 300-C 

Heat pumps Vitotronic 200 

Type WO1B with 

– Vitocal 2xx-S 

– Vitocal 2x2-G 

– Vitocal 3x3-G 

Suppressing reheating increases 

efficiency 

In heating systems with solar DHW heating 

and heating water heating, reheat suppression 

by the Vitotronic control unit contributes to 

higher efficiency. Here, the control unit takes 

the heating of DHW by the solar thermal 

system over the past 24 hours into account 

and, if similar conditions can be expected, 

suppresses unnecessary reheating by the 

heat source. Only if the water inside the DHW 

cylinder falls below a minimum temperature 

will the boiler be started. 



– Vitocal 200-G 

– Vitocal 300-G 


Type K01B with 

– Vitola 200 

– Vitola 222 

– Vitoladens 300-T 


Type K02B with 

– Vitorond 100/111 

– Vitogas 200-F 

– Vitorondens 200-T 

– Vitorondens 222-F 

Vitotronic 300-K cascade control unit 

The Vitotronic 300-K control unit is designed 

for multi boiler systems and cascades of 

wall mounted gas boilers. Depending on 

application, the control unit can also be 

supplied for installation in a control panel. 

The current status of up to eight Vitodens 

200-W is clearly shown on the default screen 

in graphic form. As an option, up to two mixer 

controllers can be retrofitted. 

The Vitotronic can be operated conveniently 

from any location within the building using 

the hard wired Vitotrol 200 and Vitotrol 300, 

or the wireless version Vitotrol 200 RF. 

The light-activated outside temperature 

sensor with solar cell will also be available 

as a wireless version in future. 


Type GW1B 


Type GW2B mit 

– Vitocrossal 200/300 

– Vitoplex 100/200 



– Vitocal 300-A 

– Vitocal 350-A 

The Vitotronic range 

of control units 

90/91

Control technology 

Remote control units 

Wireless Vitotrol 200 RF remote control 


The new wireless Vitotrol 300 RF control unit 

puts the operation of their heating system 

always within reach of users. The large colour 

touch display and the clear function fields 

make the operation even easier than on the 

Vitotronic 200 which is fitted to the boiler. 

The Vitotrol 300 RF is sited with its charging 

dock inside the living space and can be taken 

out of the dock for convenient operation. 

For use with this remote control, the 

Vitotronic 200 is supplied with a wireless base 

station (only for the Vitodens 300-W, 11 kW). 

This makes it an ideal choice for retrofitting, 

as no wiring is required. 

The Vitotrol 300 RF can control up to three 

heating circuits with heating programs, set 

room temperatures, the party and economy 

mode, holiday programs and switching times 

via its touch screen. The solar yield is also 

graphically displayed if a solar thermal system 

is linked into the system. 


The Vitotrol 200 RF is a simple wireless 

remote control for wall mounting. It is ideal 

for retrofitting, as no wiring is required. The 

operation requires a wireless base unit that 

is available as an accessory. 

On its large display, the Vitotrol 200 RF offers 

a clear overview of current data, such as the 

room and the outside temperatures, as well 

as the current operating program. Separate 

keys are available for party and economy 

mode. Changes to the set room temperature 

or the operating program are made via cursor 

keys. This remote control is designed for 

a single heating circuit. 

As an option, the wireless system can be 

extended by a light-activated wireless outside 

temperature sensor.

Apps 

Vitotrol App 

The Vitotrol App for controlling heating 

systems is available for smartphones (iPhone 

and androids) as well as the iPad and iPod 

touch. To enable this, the Vitotronic fitted to 

the new Vitodens 300-W (11 kW) must be 

extended by the Vitocom 200 LAN interface 

and must be connected to the DSL router on 

site. A configuration of the DSL router is not 

required. Boiler messages are sent to the 

smartphone by email. 

The Vitotrol App controls up to three heating 

circuits. This application is not only a convenient 

tool for the operation of heating systems 

by end users. Heating contractors, too, are 

given the opportunity through LAN/DSL 

connection to the heating system to offer their 

customers additional service and maintenance 

facilities. 

Spare part App 

This new App (www.viessmann.de/et-app) 

makes direct access to the most important 

component and spare part information 

available online via browser and smartphone, 

making the most current information available 

very quickly. This includes: 

� Price enquiry via input of the product 

number 

� Enquiry as to the use of parts 

� Enquiry regarding previous/successor parts, 

determination of alternative spare parts 

� Calling up a spare parts list by entering the 

part number of the main product 

Energy savings check App 

With the energy savings check App 

(www.viessmann.de/energie-spar-check) 

consumers and contractors can quickly 

determine the efficiency of a particular heating 

system. As a result, users obtain a concrete 

suggestion regarding modernisation and 

potential savings. 

Product App 

At www.viessmann.de/mobile-app an App 

can be started in German or in English using 

a browser or a smartphone, that includes all 

important new developments and applications. 

This is a perfect aid for contractor in advising 

customers. 

Vitotrol App 

Spare part App 

Energy savings check App 

Product App 

92/93

Services Partnership with excellent prospects 

For the 11th time in succession, trade partners have 

registered their satisfaction with the company’s products 

and services by choosing Viessmann as their “No. 1 Trade 

Partner” in the survey which is carried out every two years 

by the German industry journal “markt intern”. 

Attractive offers for our trade partners 

For Viessmann, the foundation for lasting 

success in the market place is the 

comprehensive range of innovative and 

forward-looking heating technology that 

offers high quality and reliability. The close 

partnership with the heating trade and its 

umbrella organisations is particularly valued. 

Sales logistics 

Proximity to customers is the basis of success 

for Viessmann – even in the international 

arena. A total of 120 sales offices in Germany 

and 36 other countries demonstrates this 

philosophy. 

Leasing 

Uncomplicated and flexible – businesses 

and local authorities can lease their heating 

systems from Viessmann. 

Finance 

One additional and important sales argument 

is the attractive finance offers available to the 

end customers of our trade partners. 

Viessmann Academy 

Technical and commercial expertise: The 

Viessmann Academy supports the trade with 

seminars and training sessions in the new 

Info Centre at the company’s head office in 

Allendorf (Eder), and in all sales offices, as 

well as in the Berlin Info Centre.

Maintenance and service 

Viessmann offers practical support for the 

day to day work of our trade customers in 

the form of its extensive maintenance and 

service concept. 

Software service 

For the calculation and engineering of 

heating systems, the Vitodesk 100 offers 

a comprehensive data service and, in the 

shape of the Vitodesk 200, a comprehensive 

engineering and sizing software program with 

focus on RES, as well as the Vitodesk 300 

CAD programs. 

Internet 

Informative, clear and always up to date, 

making a comprehensive range of online 

services available from Viessmann 24/7. 

From Datanorm form downloading to sales 

promotion material and online ordering with 

products searches and details of net prices. 

Advertising 

Viessmann runs specific advertising 

campaigns to support the sales effort of our 

trade partners and to “pre-sell” our products. 

Sport sponsorship 

Well known and popular brands sell more 

easily. Viessmann’s sports sponsorship 

ensures brand awareness and a positive 

image. 

Well informed advice for partners and customers forms the basis of success. 

High brand awareness through continuous sport sponsorship 

In the 34 German sales offices, as here in Düsseldorf, customers will find professional contacts who offer 

support in all sales-related subjects. 

94/95

9449 613 - 1 GB 03/2011 

Copyright Viessmann 

Duplication and alternative use only with prior written consent. 

Subject to technical modifications. 

The Viessmann Group 

35107 Allendorf (Eder) 

Telephone +49 6452 70-0 

Fax +49 6452 70-2780 

www.viessmann.com

Comprehensive range. Efficient. Sustainable. New ... - Viessmann

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