Services - Viessmann

VITOMAX 200-HW/LS/HS 

VITOPLEX 100-LS 

High pressure heating water and steam boiler 

for permissible flow temperatures above 120 °C 

for low pressure steam up to 1 bar or 

for high pressure steam above 1 bar 

Rated output: up to 16.2 MW or 25 t/h

2 

Vitomax 200-HW 

Hot water boiler

The task 

The energy-efficient and clean 

provision of heat and/or steam 

as well as high operational safety 

and reliability are essential 

requirements for the central heating 

systems in large buildings and 

industrial plants. To design boiler 

houses that are appropriate for 

each task, individual requirements 

must first be established so that 

tailor-made system solutions can be 

developed. This requires competent 

consultation, a comprehensive 

range of services and heat/steam 

boilers, the characteristics of which 

permit economical and future 

heat generation. 

Our experience 

The design and equipment of our 

large Vitomax boilers offer 

optimum pre-requisites to meet 

individual customer requirements 

in a broad range of applications. 

Many design details of the Vitomax 

boilers and the experience gained 

over many years of building large 

boilers ensure their superior 

quality and provide customers with 

high operational reliability and 

ensure a long service life. 

Jointly with you and your local 

partners, experts of our large boiler 

team in Berlin will develop an 

economical and future-proof 

solution based on your design 

details. The translation of the 

Pressure Equipment Directive and 

country-specific requirements will 

take into account all regulations 

and safety considerations for every 

component. From the initial 

concept to commissioning. 

System solutions for 

economical hot water 

and steam generation 

Technology 

The comprehensive product range 

from Viessmann extends to hot 

water boilers up to 16.2 MW as 

well as low and high pressure 

steam boilers up to 25 t/h. The 

three-pass design with low 

combustion chamber loading, the 

water-cooled, partially internal 

reversing chambers and the burner 

insertion without firebrick lining 

provides assured clean combustion 

of oil and gas using all generally 

available advanced burner 

systems. The design selected for 

you, into which a number of 

patents and components with 

design protection have been 

integrated, ensures the highest 

efficiency at all times. 

Viessmann large boiler technology 

means perfectly coordinated 

system technology, including: 

– Control and monitoring systems 

– Measuring and control 

equipment 

– Combustion systems with fuel 

supply 

– Water treatment 

– Feed water tank with thermal 

degassing 

– Pipeline systems and flue gas 

systems. 

Content Page 

High pressure hot water boiler 

Vitomax 200-HW 4/5 

Low pressure steam boiler 

Vitoplex 100-LS 6/7 

Vitomax 200-LS 8/9 

High pressure steam boiler 

Vitomax 200-HS 10/11 


with ECO 

Vitomax 200-HS 12/13 

Waste heat boiler 

Vitomax 200-R 14/15 

Regulating/control system 

Vitocontrol 16/17 

System components 

and accessories 18/19 

Services 20/21 

Technical service 22/23 

Product range overview 24/25 

Manufacturing quality 26/27 

Reference systems 28/29 

Comprehensive 

product range 30/31 

Model Type Version Permissible Rated 

Product designation operating heat output or 

pressure steam output 

High pressure hot water 

boiler above 120 °C M236 Three-pass boiler 6 to 25 bar 460 to 2500 kW 

Vitomax 200-HW M238 Three-pass boiler 6 to 25 bar 3500 to 16200 kW 


Vitoplex 100-LS SXD Three-pass boiler 0.5 / 1 bar 0.26 to 2.2 t/h 

Vitomax 200-LS M233 Three-pass boiler 0.5 / 1 bar 2.9 to 5 t/h 


Vitomax 200-HS M237 Three-pass boiler 6 to 25 bar 0.7 to 3.8 t/h 

with and without Eco 100 or 200 M235 Three-pass boiler 6 to 25 bar 4.0 to 25 t/h 


Hot water/steam generation 

Vitomax 200-RW 

Vitomax 200-RS 

3

4 

High pressure hot 

water boiler for district 

heating and industry 


type M236 


water boiler

The Vitomax 200-HW is an oil or 

gas fired high pressure hot water 

boiler for permissible flow 

temperatures in excess of 120 °C, 

permissible operating pressures of 

6 to 25 bar – a typical boiler for 

district heating and industrial 

operations: 

– Type M236 

Rated output: 460 to 2500 kW 

– Type M238 

Rated output: 3500 to 16200 kW 

High pressure hot water 

boiler for district heating 

and industry 


Rated output: 

460 to 2500 kW 


Rated output: 

3500 to 16200 kW 

The Vitomax 200-HW benefits 

at a glance: 

■ High level of operational reliability and 

a long service life are assured through 

wide water galleries and wide spaces 

between hot gas pipes. The clearance 

between hot gas pipes exceeds the 

minimum requirements of the applicable 

current (national) directives. This results 

in Viessmann boilers achieving the 

maximum permissible test periods. 

In addition, the large water content 

provides excellent natural circulation 

and a reliable heat transfer under all 

operating conditions. 

■ Three-pass boiler for clean combustion 

with low nitrogen oxide emissions 

VITOMAX 200-HW 

■ Economical energy consumption 

– boiler efficiency without Eco up to 92 %. 

Substantial increase in the boiler 

efficiency right into the condensing range 

through flue gas/water heat exchangers 

downstream of the boiler 

■ Low radiation losses through 120 mm 

thick composite insulation and insulated 

flue gas collector 

■ Approval according to the European 

Pressure Equipment Directive 97/23/EC or 

according to country-specific regulations 

■ Low pressure drop on the hot gas side 

through convection heating surfaces with 

generously sized hot gas pipes 

■ High level of serviceability through 

water-cooled reversing chambers without 

firebrick lining – large cleaning doors 

■ Removable burner trolley for boilers 

up to 2500 kW available as accessory for 

easier maintenance and simplified burner 

adjustment 

■ Walk-on cover on top of the boiler as part 

of the standard delivery – this simplifies 

the installation and maintenance and 

protects the thermal insulation against 

accidental damage 

■ An intermediate flow piece for the 

integration of measuring, control and 

safety fittings is part of the standard 

delivery 

■ The Vitocontrol control panel enables the 

regulation of all boiler-specific control 

equipment. In addition, suitable 

components provide operation without 

need for permanent supervision, a fully 

automatic boiler operation with 24 or 

72 hour supervision-free operation in 

accordance with country-specific 

conditions. 

5

6 

System with one 

Vitoplex 100-LS low 

pressure steam boiler 

Vitoplex 100-LS 

type SXD 

Low pressure 

steam boiler

The Vitoplex 100-LS is a compact 

three-pass boiler for generating 

low pressure steam in the output 

range from 0.26 to 2.2 t/h. The 

boiler is designed for operation 

with 1 bar pressure. Subject to 

requirements, the operating 

pressure can be reduced to 0.5 bar. 

Wide water galleries and wide 

spaces between hot gas pipes and 

inserts into the boiler wall provide 

excellent natural circulation and a 

reliable heat transfer, resulting in 

high operational reliability and a 

long service life. 

The low material loading through 

the completely water-cooled rear 

reversing chamber and the 

absence of firebrick lining result in 

an extremely low-stress boiler 

construction. 

A very positive result of the large 

water content are the favourable 

operating characteristics during 

load fluctuations. Residual moisture 

in the steam is avoided, even when 

steam is suddenly drawn off or in 

large volumes, thanks to the boiler 

design. Consequently, high quality 

steam is constantly available. The 

large steam chamber with its 

correspondingly large evaporator 

and the integral steam drier support 

the balanced characteristics of 

this boiler. 

The output range of the 

Vitoplex 100-LS meets the 

requirements in air conditioning 

and heating systems, commercial 

nurseries and commercial 

enterprises such as laundries, 

where low steam pressure is 




Low pressure steam 

boiler up to 1 bar or 

0.5 bar operating 

pressure 

Safety fittings of the 



required. The design of this boiler 

too has been proven in thousands 

of applications. 

The very low combustion chamber 

volume loading and the three-pass 

design enable this boiler to stay 

even within restrictive emission 

limits. 

The Vitoplex 100-LS benefits at a glance: 

■ Compact design 

■ Thousands in long-term use 

■ 91 % boiler efficiency; when used with an 

economiser up to 95 % 

■ Three-pass boiler with low combustion 

chamber loading 

■ Clean combustion with low emissions 

■ Large steam chamber with large 

evaporator 

■ Low thermal losses due to thermal 

insulation over the entire boiler body 

■ Connector flange for mounting all 

necessary measuring, control and safety 

fittings 

■ Extensive matching accessories available 

■ Easy conversion to hot water operation 

■ With walk-on boiler cover – for easier 

installation and maintenance 

7

8 

Three-pass low 

pressure steam boiler 

Vitomax 200-LS, 

System at Deckers 

Pilzen, Holland 

Vitomax 200-LS 

type M233 

Low pressure 

steam boiler

The Vitomax 200-LS (type M233) is 

a low pressure steam boiler with 

permissible operating pressure up 

to 1 bar, steam output: 2.9 to 5.0 t/h. 

In this output range, the Vitomax 

200-LS covers the requirements of 

all applications demanding low 

pressure steam or heat, e.g. airconditioning 

and heating systems, 

commercial nurseries or other 

commercial applications. 

The Vitomax 200-LS is a three-pass 

boiler with low combustion 

chamber loading (< 1.2 MW/m 3 ). 

This creates the ideal conditions 

for clean combustion with low 

nitrogen oxide emissions. 

Three-pass boiler for 

generating low pressure 

steam 

Vitomax 200-LS 

2.9 to 5.0 t/h 

(1900 to 3300 kW) 

The Vitomax 200-LS benefits 

at a glance: 

VITOMAX 200-LS 

■ Three-pass boiler with low combustion 

chamber loading (< 1.2 MW/m 3 ) – clean 

combustion with low nitrogen oxide 

emissions 


thick composite thermal insulation and 

fully water-cooled reversing chambers 

■ Economical fuel consumption – boiler 

efficiency: 92 % 

■ Excellent steam quality through large 

steam chamber, large evaporator and 

integral steam drier 

■ High operational reliability through 

excellent natural circulation and safe 

heat transfer – supplied as standard 

with robust shipping and installation 

protection 

■ Easy to service through large boiler door 

and easy accessibility during 

maintenance work 

■ Walk-on cover on top of the steam boiler 

as part of the standard delivery – 

simplifies installation and maintenance 

9

10 

Steam boiler 

Vitomax 200-HS 


type M237 

High pressure 

steam boiler

The Vitomax 200-HS is an oil or 

gas fired high pressure steam 

boiler to category IV of the 

Pressure Equipment Directive 

97/23/EC with a permissible 

operating pressure of 6 to 25 bar. 

Even during the boiler 

development, our engineers 

collaborated closely with major 

burner manufacturers with world 

wide representation. The resulting 

two boiler types in this series offer 

minimum emissions and a high 

degree of flexibility: 

– Vitomax 200-HS, type M237; 

steam output: 0.7 to 3.8 t/h, 

operating pressure up to 25 bar. 

Arranging the flame tube on the 

side enabled the development of 

an extremely compact boiler 

design without sacrificing 

established design benefits. 

– Vitomax 200-HS, type M235; 

steam output: 4 to 25 t/h, 

operating pressure up to 25 bar. 

A boiler in the classic style. The 

flame tube is arranged in the 

centre, offset slightly 

downwards; the hot gas flues of 

the second and third pass are 

arranged symmetrically above. 

For the production of superheated 

steam, a superheater is integrated 

into these boilers between the 

second and the third pass above 

the upper reversing chamber. 

This enables the generation of 

temperatures above the saturation 

pressure. 

HP steam boiler 

with low combustion 

chamber loading 


type M235 with 

integral economiser 


type M235 

The Vitomax 200-HS benefits 

at a glance: 

■ High operational reliability and a long 

service life 

VITOMAX 200-HS 

■ Approval according to the European 

Pressure Equipment Directive 97/23/EC 

or country-specific regulations. By 

performing better than the minimum 

requirements, Viessmann boilers achieve 

the maximum permissible test periods 

■ Tolerant to load fluctuations 

■ High steam quality through large steam 

chamber and a large evaporator plus the 

integral steam drier 

■ Three-pass boiler – for clean combustion 

with low nitrogen oxide emissions 

■ Economical fuel consumption 


thick composite insulation and 

water-cooled front boiler floor plus 

water-cooled burner inlet 

■ Low pressure drop on the hot gas side 

through convection heating surfaces with 

large hot gas pipes 

■ Removable burner trolley for boilers up 

to 3.8 t/h available as accessory for easier 

maintenance and simplified burner 

adjustment 

■ Walk-on cover on top of the boiler as part 

of the standard delivery – this simplifies 

the installation and maintenance and 

protects the thermal insulation against 

accidental damage 

■ Robust base frame makes boiler 

foundations superfluous 

■ Large selection of matching accessories 

for simplified system integration 

■ As standard with robust shipping and 

installation protection 

11

12 


Steam boiler with 

economiser 

downstream 


type M235 

High pressure steam 

boiler with integral 

economiser

For us, utilising fuel to its 

maximum goes without saying. 

Today, it is not a matter of choice 

but absolutely essential to protect 

the environment and natural 

resources that the maximum is 

extracted from the available fuel. 

For that reason, Viessmann has 

developed the economiser (ECO) 

that is integrated into our boilers 

as standard. This economiser is 

available in two different versions 

(type 100 and type 200), that raise 

the fuel efficiency up to 95 %. 

Installing a stainless steel heat 

exchanger makes easy use of 

condensing technology. 

High pressure steam 

boiler with flue gas 

heat utilisation 

The Vitomax 200-HS with integral 

economiser is generally used in the 

same type of systems as boilers 

without ECO. In a series comprising 

two types, steam output between 

0.7 and 25 t/h is provided at 25 bar 

operating pressure. 

Economiser fitted 

on top of a 



type M237 

Steam output: 

0.7 to 3.8 t/h The Vitomax 200-HS with economiser 

benefits at a glance: 

■ ECO pipe, either as ribbed or smooth 

pipe, subject to application 


with integral ECO 

■ Integral economisers are approved as 

single assembly with the boiler and, 

as a unit, meet the Pressure Equipment 

Directive 

■ Integral economisers are equipped as 

standard with insulated feed water 

connecting line and fittings 

■ Economisers fitted on top or behind the 

boiler including insulation and, upon 

request, fittings 

■ Flexible use through diverse versions 

(integrated, fitted on top, fitted behind) 

■ Flexible arrangement of the flue outlet 

13

14 



waste heat utilisation 

at the Maribor hospital, 

Slovenia (6 t/h, 13 bar 

saturated steam) 


type M235 

Boiler with large 

water chamber for 

generating steam 

with additional 

waste heat flues

Waste heat boilers utilise the heat 

from flue gases generated during 

combustion processes or the heat 

in hot exhaust air from industrial 

processes to generate hot water or 

saturated steam. 

Economical and political 

considerations frequently suggest 

the installation of waste heat 

boilers in combination with gas 

turbines and CHP stations. The 

influence of steadily increasing 

energy costs has also led to a rise 

in the use of waste heat boilers to 

exploit the waste heat generated in 

industrial processes. 

Viessmann waste heat boilers are 

available in two designs: 

■ Waste heat boilers (AHK) 

without additional combustion. 

For this, exclusively the flue 

gas/exhaust air volumes are 

used to generate hot water or 

saturated steam. 

■ Hot water or steam boilers with 

waste heat utilisation. These are 

boilers with conventional 

combustion and additional 

waste heat utilisation. 

The choice of which boiler version 

to use depends on the specific 

conditions of user applications. 


for hot water and 

steam generation 

Waste heat boilers – 

shown here as a 

single flue hot 

water boiler 


for generating 

steam, single flue 

with two sources 

of flue gas 

Function and layout 

VITOMAX 200-RW/RS 


The waste heat boilers from 

Viessmann are designed according 

to the flame tube/smoke tube 

boiler principle. Here, the hot flue 

gas is directed through pipe 

bundles, where its heat is 

transferred to the water inside the 

boiler body. 

By contrast, on flue gas heat 

exchangers, the water flows 

through pipe bundles while the 

flue gas flows around the pipes 

inside the heat exchanger housing. 

Flue gas heat exchangers are 

preferred when using "cooler" 

flue gases for generating DHW. 

Flue gas collectors are located on 

the inlet and outlet side of the 

waste heat boilers, where cleaning 

apertures and flue connections 

are located. 

To minimise radiation losses, the 

waste heat boiler is fitted with a 

120 mm composite thermal 

insulation with a painted sheet 

steel jacket. 

Like all Vitomax boilers, the waste 

heat boiler stands on a base frame 

that spreads the load across a large 

area of the floor. 

15

VITOCONTROL 

Display overview 

16 

Regulating and 

control system 

Vitocontrol 

control panel 

Regulating and control system 

Vitocontrol 

Essential part of the steam boiler 

system is the control technology. In 

this regard too, Viessmann calls on 

the best technology available 

today. To ensure a safe and 

convenient operation, we have 

developed a new generation of our 

control panel technology: 

Vitocontrol. 

Function: 

Based on a modular PLC, all nonsafety 

control functions of the 

boiler are managed here. For 

example, the boiler output, the 

water level control, the T.D.S. and 

blow-down control, the feed water 

pump control and, if required, the 

control of the economiser bypass 

damper and the flue gas damper 

are handled by the Vitocontrol. 

Remote supervision with 

automatic operation and fault 

messages via the telephone 

network is enabled via a control 

room or an extension module. 

That way, the world is your oyster. 

Updates, checks and optimising 

can be implemented from 

anywhere. 

All the above functions are 

programmed in the PLC. These can 

be linked up through additional 

field devices and by activating the 

software without much effort. The 

safety equipment required in 

accordance with the regulations 

applicable in each country are 

integrated into the control panel.

Operation: 

The system is programmed and 

controlled via a colour touch 

screen display with graphic 

capability that is built into the 

control panel door. 

On the standard display, you 

can read off the most important 

functions at a glance. The 

combination of graphic display 

and plain text messages allows 

you to orientate yourself quickly. 

The system is well prepared for the 

use in the country of destination. 

You can select from five preprogrammed 

languages. Your 

customers, your local service 

engineer or a service engineer from 

a service centre will be grateful. 

Display: 

Operation and fault messages are 

clearly indicated on the display. 

The stored history enables the 

user or service engineer to act 

more speedily and specifically. 

We have equipped the system 

with the Profibus-DP as interface 

to the domestic services or to a 

control room. 

Checking individual 

components 

Variable set 

pressure defaults 

The benefits of the Vitocontrol 

control panel at a glance: 

VITOCONTROL 

■ Graphic display with plain text messages 

■ Profibus DB interface 

■ Operation via touch screen 

■ Modular design for system-specific 

extension 

■ Convenient through full integration of all 

system components 

■ High operational reliability 

■ Able to communicate 

■ Multilingual 

■ Fully wired and tested at the factory 

■ World-wide spare parts service 

17

Feed water tank 

with thermal 

degassing 

18 

A perfect system all round 

Double pendulum 

softening system 

from Viessmann 

Reverse osmosis 

system 

System design 

Any system is only as good as its 

weakest components. That 

principle motivates Viessmann 

during the selection of the 

available system components. 

Apart from the demand for the 

highest quality and flexibility, 

ensuring a perfect match amongst 

individual components is of vital 

importance. 

Whether chemical or thermal water 

treatment, boiler control valves or 

safety assemblies, all components 

supplied by us offer a perfect 

functional match. 

A module for water softening, 

chemical dosing and thermal 

degassing will be supplied, 

matched to your individual 

demand and subject to the fresh 

water quality. Subject to the water 

quality, either dual pendulum 

softening systems, full desalination 

or reverse osmosis systems are 

employed. 

The aims and benefits of excellent 

and reliable system technology are 

immediately apparent: Fully 

automatic operation can safeguard 

the demand-dependent operation 

of the boiler system over a period 

that can be freely selected. That 

improves the steam quality and 

extends the service life of the 

boiler. One side-effect that should 

not be ignored is a significant 

reduction of the running costs. 

Fewer T.D.S. and blow-down 

losses of boiler water mean less 

topping up with treated and heated 

feed water.

Feed water pumps 

Also, where feed water pumps are 

concerned, compromise never 

entered our thinking. Whether 

continuous feed water control via 

control valves with spillback or the 

use of inverter pumps, we only 

work with renowned 

manufacturers. 

Naturally, the pump is supplied as 

assembly including fittings and 

shut-off valves. This simplifies the 

layout, installation and 

commissioning. We will allocate 

the pump to the boiler taking the 

application area into consideration. 

You should not have to concern 

yourself with such details. 

Boiler platform 

To make the installation simpler, 

our boilers are also equipped with 

a cover. This makes working on or 

above the boiler much simpler 

without the risk of damaging the 

boiler. For systems designed 

to be fitted with a boiler platform, 

we offer bespoke platforms 

with handrails and ladders that 

comply with the Health & Safety 

requirements of the target country. 

Sound insulation 

A boiler delivered with a correctly 

sized burner, matching burner 

plate, where required with 

equipment to provide sound 

insulation and silencing, reduces 

your efforts to a minimum. 


type M237 with 

boiler equipment 

Boiler fittings 

Anti-vibration boiler mounts, 

burner silencer hoods, flue gas 

silencer or compensators; all that 

can be supplied with the boiler in 

one delivery. Extensive purchasing 

efforts and the search for 

components is a thing of the past. 

19

Services 

Handling the Vitomax 

with our own lorry 

with crane 

20 

Shipping a 

Vitomax boiler 

All part of the service 

As well as considerable output, 

large boiler systems also need 

system-specific solutions and 

services. Viessmann offers all that, 

i.e. matching system components 

and experienced engineers for 

competent advice. Our large boiler 

unit in Berlin also designs and 

builds large Vitomax boiler 

systems as tailor-made units 

according to customer-specific 

and local requirements. 

Technology alone is not enough. 

Services in all product areas are 

becoming increasingly more 

important. These include finance, 

the delivery of boilers on our own 

vehicles equipped with crane, as 

well as commissioning and 

hand-over. 


– everything from one source 


from Berlin/Brandenburg and your 

local Viessmann representative 

offers everything necessary for a 

solution-oriented co-operation. 

■ Consultation – comprehensive 

and competent 

■ Manufacture – according to 

country-specific requirements 

with short delivery-times

■ Equipment – safety accessories, 

burner, control panels, boiler 

platforms, flue gas/water heat 

exchangers and water treatment 

systems 

■ Shipping and handling – with 

lorry/crane and a team of 

specialists 

■ Training and induction – at the 

Viessmann information centre 

Berlin and in your region 

■ Commissioning – world-wide 

through specialist engineers 

■ Service – by qualified technical 

services 

This business concept is supported 

by the Viessmann information 

centre and hospitality suite in 

Berlin. In this facility, designers, 

heating specialists and users are 

trained in the use of their intended 

system. The close proximity of this 

centre to our manufacturing plant 

in Berlin allows customers to 

follow every step of the production 

of their system. 

Training and 

induction 


Viessmann information 

centre Berlin 

21


Service engineers 

in action 

22 

Technical Services for 

large boiler systems 

Today, large boiler technology 

demands not only the most 

advanced technology, reliability, 

system-specific solutions, 

optimum adjustments and 

environmental responsibility, but 

also many services around the 

boiler operation. 

Our technical services department 

for large boilers offer you 

competent specialists for all your 

concerns with world-wide cover. 

Our technical expertise is there for 

you with know-how and advice, 

whether your concern relates to an 

existing or a new system. 

Our services for the large boiler 

sector cover: 

■ Steam boilers 

■ Hot water boiler 

■ Hot water and industrial boilers 

■ Waste heat boilers

Our services include: 

Maintenance services 

■ Inspections/annual service 

■ Boiler cleaning (dry and 

chemical) 

■ Burner service 

■ System maintenance 

■ Checking the water system and 

chemical consistency 

■ Preparing the boiler for an 

internal inspection 

■ 24 hours emergency service 

(requires a maintenance 

contract) 

Boiler inspections 

■ Internal inspections in 

co-operation with the relevant 

expert/supervisory body 

■ Pressure tests in co-operation 

with the relevant 

expert/supervisory body 

Repairs 

■ Welding on the boiler 

■ Conversions to the control 

panels 

■ Extensions and development 

of systems for 72 h BOSB 

Analyses 

■ Camera inspections 

(boiler surveys) 

■ Sound measurements and 

thermography 

■ Analysis and assessment of 

the water quality 

Service 

■ Training of your operators 

■ Consultation 

Boiler undergoing 

a service 

Our advice 

Regular inspections and 

maintenance ensure the optimum 

availability and in addition a 

long-term retention of the value 

of your system. 

Rational use of energy is not only 

beneficial to you as the user, but 

also to our environment. 


23

VITOMAX 200-HW 

High pressure 

hot water boiler 

6 to 25 bar 

Type M236 

460 to 2500 kW 

Type M238 

3500 to 16200 kW 



0.5 / 1 bar 

Type SXD 

0.26 to 2.2 t/h 

VITOMAX 200-LS 


0.5 / 1 bar 

Type M233 

2.9 to 5.0 t/h 

24 

Product overview



6 to 26 bar 

Type M237 

0.7 to 3.8 t/h 


with economiser 


6 to 25 bar 

Type M235 

4.0 to 25.0 t/h 

VITOMAX 200-RW 

VITOMAX 200-RS 


25

Production 

quality 

Welding the pressure 

body in the optimum 

welding position 

26 

Advanced design and 

production methods 

ensure high quality 

Sufficient and adequately sized 

cleaning and inspection openings 

are fitted to all Viessmann high 

pressure hot water boilers as well 

as high pressure and low pressure 

steam boilers 

The large boiler systems are 

manufactured in Berlin/Brandenburg. 

Specialist engineers provide 

consultation and project 

management tailored to your 

individual requirements. 

The large boiler production has its 

own engineering and development 

department, modern production 

facilities, such as welding robots, 

flexible manufacturing systems 

with CNC-controlled machines, laser 

and plasma cutters and a modern 

press shop. 

Stresses are analysed using the 

Finite Element Method, which also 

assists in optimising, for example, 

pipe arrangements or welded joints. 

These all support and safeguard a 

design that conforms with relevant 

regulations. 

Our production technology meets 

all common, country-specific 

standards and regulations. In 

addition, we set high standards 

for the materials used and their 

processing. In addition to standards 

and regulations, our welders are 

subject to supplementary 

supervision. Delivery conditions 

to limit tolerances and material 

properties are also agreed with 

our suppliers.

Our design philosophy is based on 

the principle of engineering safety 

into the product itself. This is 

reflected particularly in ensuring 

low stress designs. We achieve this 

principle by allowing for large 

expansion joints between 

components themselves and their 

relative wall thickness. 

The Vitomax series of large 

boilers are manufactured in 

smaller numbers or as bespoke 

boiler systems. At the end of 

production, the boilers are 

subjected to a pressure test at 

1.85-times operating pressure, in 

accordance with the Pressure 

Equipment Directive. 

On high pressure steam and hot 

water boilers, welding seams are 

inspected in accordance with the 

country-specific regulations using 

non-destructive ultrasound and 

X-ray techniques. 

CNC controlled 

oxy-acetylene cutter 

with thread cutter 

X-ray chamber 

Production 

quality 

Welding the smoke 

tube with mechanical 

welding equipment 

27

28 

Steam boiler at 

AZM Asur, Belgium 

References around 

the world 


B. Braun AG 

Melsungen, 

Germany 

Top references – top technology in 

prime position 

Viessmann industrial and heating 

systems meet many different 

challenges all over the world every 

day. In listed properties, modern 

industrial buildings or on large 

properties: Viessmann takes care 

of them all. The products in the 

comprehensive Viessmann range 

can cope with any demand and 

provide solutions for all 

requirements: For oil, gas, wood, 

solar collectors and heat pumps – 

from 1.5 to 20000 kW. And they set 

high standards in terms of 

operational reliability, ease of 

operation, environmental 

protection and durability. 


superheater at 

Klaipedos Kartonas, 

Lithuania 

High pressure 

hot water boiler 

Jesenice, Slovenia


Sanovel, Istanbul, 

Turkey 


water boiler at the 

Freiburger 

Wärmeversorgungs- 

GmbH 

Freiburg, Germany 


Textil-Industrie 

Rivolta Carmignani 

Milan, Italy 


the General Hospital 

of the Peoples 

Liberation Army, 

Beijing, China 

Steam boiler 

Göttingen, Germany 

29

Comprehensive 

product range 

Heating system 

components, from 

fuel storage to 

radiators and 

underfloor heating 

systems 

30 

Wall mounted 

boilers for oil and 

gas, employing 

conventional and 

condensing 

technology 

Our comprehensive product 

range sets new standards 

Energy systems for the 

utilisation of environmental 

energy, solar energy and 

sustainable fuel supplies 

Viessmann offers future-oriented heating systems for 

oil, gas, solar, wood and natural heat, qualifying them as 

an independent partner concerning all energy questions. 

Our heating systems cover all output demands from 

1.5 to 20000 kW – from apartments to large industrial 

plants. 

Our product range, categorised in three steps according 

to price and technology, offers the right solution for every 

demand and every budget. 

Viessmann matches up all products and consequently 

offers an optimum level of efficiency – from the initial 

design to system operation. 

Freestanding boilers 

for oil and gas, 

employing 

conventional and 

condensing technology

For three generations, the 

Viessmann family business has 

been committed to generating heat 

conveniently, economically, with 

environmental responsibility and 

in accordance with the prevailing 

demand. With a number of 

outstanding product developments 

and problem-solving solutions, 

Viessmann has created many 

milestones which have frequently 

made them the technical 

pacemaker and trendsetter for 

their entire industry. 

Viessmann’s orientation is 

decidedly international – it 

maintains 11 factories in Germany, 

Austria, France, Canada, Poland 

and China, sales organisations in 

Germany and 35 other countries, 

plus 112 sales offices around 

the world. 

Responsibility for the environment 

and society at large, fairness in 

dealing with business partners 

and employees, as well as striving 

for perfection and the highest 

efficiency in all business processes 

are core values for Viessmann. 

This applies to every individual 

employee and therefore to the 

whole company. It offers its 

customers, with the multitude of 

its products and associated 

services, the particular benefit and 

added value of a strong brand. 

Viessmann Group 

The Viessmann Group 

Viessmann supports 

top performances in 

the sporting arena too 

The company 

Large boiler 

manufacture at the 

Mittenwalde factory 

Viessmann in 

Allendorf (Eder) 

Viessmann sales 

offices: 112 world-wide 

31

Viessmann Werke 

D-35107 Allendorf (Eder) 

Tel. +49 6452 70-0 

Fax +49 6452 70-2780 

www.viessmann.com 

Viessmann Werke Berlin 

Kanalstraße 13 

D-12357 Berlin 

Tel. +49 30 6602-300 

E-mail: Vitomax@viessmann.com 

9448 493 GB 03/2007 

Subject to technical modifications 

Your local heating contractor:

Services - Viessmann

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