Viessmann oil/gas-fired boilers for medium-sized and large outputs

Efficient solutions for economical heat and steam generation

Viessmann is introducing new high-pressure steam boilers, wider

areas of use for gas condensing boilers, new water treatment

stations, and a new control unit for medium- and large-capacity

boilers onto the market this year:

- The gas condensing boiler Vitocrossal 200 with an output

range between 87 and 311 kW is now available with a

permissible operating pressure of 6 bar.

- With Vitomax HS, Viessmann is introducing new high-

pressure steam boilers, which stand out due to their

attractive starter prices. Precisely matched to optional

additional components, the extensive range ensures that

boilers can be matched to individual customer

requirements.

- The new thermal water treatment station type WAS 200 for

full deaeration is a compact module ready for operation in a

short time for supplying the steam boiler with treated,

deaerated steam.

- The new control unit for multi-mode systems

Vitocontrol 300-M can also be used to conveniently control

and monitor very complex energy systems with different

heat, cooling, and power generators.

Vitocrossal 200: gas condensing boiler for operating pressure up to 6 bar

Vitocrossal 200 (Type CM2B), in the output range between 87 and

311 kW, is a tried and tested, attractively-priced condensing boiler

with a stainless steel Inox-Crossal heating surface and a

modulating MatriX gas burner. The boiler's permissible operating

pressure has now been increased to 6 bar. The boiler thus has

even more wider range of potential uses and is well-suited to

supplying heat to large facilities and high buildings.

The combination of stainless steel Inox-Crossal heating surfaces

and MatriX gas burners provides maximum fuel efficiency and very

low CO2 emissions. Vitocrossal 200 thus achieves a high standard

utilization rate of 98 % (Hs). The MatriX burner is very quiet in all

output sizes thanks to the low-flame area combustion.

Permanently effective heat transmissionU-pipe locations and changes in cross-sections in the Inox-Crossal

heating surfaces guarantee full contact with heating gas and,

consequently, maximum heat transfer to the boiler water. The

smooth, stainless steel surface allows the condensate that forms

during the condensing process to simply flow downward in the

same direction as the flue gas. This produces a permanent self-

cleaning effect, which ensures a permanent high utilization of

condensation technology and reduces maintenance work. Unlike

standard heat exchanger designs – especially those made from

aluminum – Inox-Crossal heating surfaces do not allow

condensate to accumulate or condensate residue to settle on the

hot gas side of the walls. Heat transfer in Vitocrossal 200 thus

remains efficient on a permanent basis.

Not required: boiler circuit pump or hydraulic switch Vitocrossal 200 holds up to seven times more water than

comparable condensing boilers on the market. For example, the

smallest boiler in this series with a nominal heat output of 87 kW

contains 229 liters of water. This results in a series of advantages:

- Its hydraulic connection is easy and inexpensive to install

and no hydraulic switch is required.

- There is no forced circulation and thus no boiler circuit

pump is required.

- There are no limitations on high flow/return temperature

differences.

- The operational characteristics of the condensing boiler are

robust against fluctuating effects from the heating network.

- The large water capacity also produces significantly fewer

burner starts, which reduces wear and tear.

- In addition, the boiler is not sensitive to limescale deposits,

even with marginal fill water quality.

Convenient Vitotronic control unitVitocrossal 200 can be run either at a constant or a weather-

compensated reduced boiler water temperature. The

Vitotronic 200 control unit is easy and convenient to operate

thanks to the large, lit screen with its plain, multi-line text display.

Operating times and heating curves are shown in clearly defined

diagrams while logically structured menus ensure intuitive

operation.

A standardized LON bus enables owners to integrate higher level

building control systems. The Vitocom/Vitodata TeleControl

system also provides the option of extensive remote monitoring

and maintenance of the boiler system.

CascadedTwo Vitocrossal 200 can also be operated in cascade from a

control engineering and exhaust gas line perspective with outputs

of just 87 kW and above. Special stainless steel exhaust gas

collector lines and hydraulic system piping are available for twin

boiler systems.

Advantages for market partners- Flexible in use due to the permissible operating pressure of

6 bar and permissible operating temperatures up to 95° C

- Minimum flow rate and boiler circuit pump are not required

due to the large water capacity.

- Compact hydraulic integration, as all connections can be

mounted from above

- Easy maintenance thanks to good accessibility of all

relevant components

Advantages for owners- High level of operational reliability and low wear and tear

due to the large water capacity

- Low combustion chamber load due to reduced cyclic

operation

- Low burner wear and reduction in emission peaks when

burner fires up

- Able to withstand fluctuations in the heating network and

resistant to limescale deposits from marginal fill water

quality (6 bar, wide water spaces)

- Forced circulation is not required, nor is additional power

input needed for a pump.

- Corrosion-resistant Inox-Crossal heating surfaces with self-

cleaning effect

Technical specifications- Nominal heat output: 87 to 311 kW

- Standard utilization rate: 98 % (Hs)

- Permissible operating pressure: 6 bar

- Permissible operating temperature: up to 95° C

- Large water capacity: 229 l (at 87 kW)

AvailabilityVitocrossal 200 (Type CM2B) with a permissible operating

pressure of 6 bar will be available from April 2015.

Vitomax HS: new steam boiler with a wide selection of optional features

The new high-pressure steam boilers Vitomax HS are attractively-

priced basic models producing 0.5 to 30 tons of steam per hour.

Owners can choose from a comprehensive range of matching

modular components to equip their system as required. As a

result, it is fast and easy to configure a solution that is precisely

tailored to individual customer requirements.

For natural and liquid gas, EL fuel oil, and heavy fuel oilsThe new three-pass boilers are available with permissible

operating pressures ranging from 6 to 20 bar (optionally to 30 bar).

They can be operated using natural and liquid gas as well as EL

fuel oil. There are also versions designed for operation with heavy

fuel oils. This makes the new steam boilers particularly well-suited

for industrial applications, such as those in the chemical, plastics,

and pharmaceutical industries, or in the construction materials,

wood, food, and beverage sectors. Other ideal areas of use are

hospitals and commercial operations such as laundries.

Designed for full load in continuous operationThe boilers are designed for full load in continuous operation. This

allows the owner to operate the system without any limitations.

The steam boilers are particularly robust, an essential requirement

for a long service life and optimum operational reliability.

Optional featuresA modular concept allows all Vitomax boilers to furnish solutions

ranging from the most basic to highly sophisticated, customized

configurations. Furthermore, an individualized system can be put

together in just a few steps with the new product configurator. This

includes selection of pressure stage and emissions limits, among

others. The numerous optional features also include:

- A water-cooled burner opening for maximum heat

transmission

- Modular assembly with connectors

- Version with Economiser ECO 100 or ECO 200

- Load-bearing boiler cover

- Boiler operating platform

- Boiler seating with standard profiles

Easy to install and low maintenance outlayCompact dimensions and a lightweight design means that the

boilers are simple to install. The optional support frame consisting

of standard profiles makes them easier to transport on rollers and

ensure loads are evenly distributed on their base with very few

structural requirements.

The boilers feature numerous openings for inspection purposes at

all relevant points in the system. Easy-to-open, swivel-mounted

doors make the boilers easy to clean and maintain. There is no

need to dismount the gas train or burners for cleaning or

maintenance.

Advantages for market partners- Attractively-priced high-pressure steam boilers

- Extensive optional features (including burner opening,

Economiser, boiler cover)

- Flexible range of uses due to compact dimensions and low

weights

Advantages for owners- Low investment costs for basic boilers

- Low operating costs thanks to integrated Economiser

(optional)

- Also available: steam boiler customizable to suit individual

requirements

Technical specifications- Output: 0.5 to 30.0 t/h

- Pressure stages: 6, 8, 10, 13, 16, 18, 20 bar (22, 25, 28,

30 bar on request)

- Degree of efficiency: ≥ 95 %

- Fuels: natural gas, liquid gas, EL fuel oil, heavy fuel oils

AvailabilityVitomax HS steam boilers with an output range from 2.0 to 16.0 t/h

will be available from April 2015. Outputs of 0.5 to1.65 t/h and 18.0

to 30.0 t/h will follow in September 2015.

Thermal water treatment station WAS 200: fully wired module for treatment of boiler feedwater

The Viessmann thermal water treatment station WAS 200 removes

dissolved gases such as oxygen and carbon dioxide from water. It

ensures that the steam boiler is supplied with treated boiler

feedwater at all times, thus guaranteeing that the entire system

operates dependably during its long service life.

All components mounted on base frame, fully wired ready for useThe standard water treatment station is fitted with an insulated

feedwater container, stainless steel deaerator (full deaeration,

including fittings), mounted container fittings, electrical heating

steam valve, fresh water solenoid valve, sample cooler, metering

station, magnetic level indicator, and safety valve. All components

are mounted on a base frame, fully wired ready for use, and pre-

wired to a terminal box. As with all system components, WAS 200

is centrally controlled via a Vitocontrol control cabinet.

Further modules can be added optionally: desalination device and

mixing cooler, including fittings and pipeworks, condensation drain,

and pump module. This allows thermal water treatment to be

tailored to the customer's individual requirements quickly and

easily.

Instantly ready for operationThe water treatment station is fully wired when delivered. It is easy

to transport thanks to compact dimensions. Transport eyes are

already fitted at suitable points, so it can be lifted into position for

installation. The pipework has already been fitted to all

components in the factory, so installation is quick and easy – the

whole station is ready for operation within a short period of time.

Advantages for market partners- Trouble-free system operation due to dependable

compliance with required parameters for the boiler

feedwater

- Easy transport thanks to compact dimensions and

arrangement of all components on a base frame

- Significant installation time and cost savings thanks to fully

wired modules

Advantages for owners- Reliable system operation due to deaerated boiler

feedwater and compliance with water parameter

requirements

- Effective deaeration based on a combination of trickle and

spray deaeration technology

- High degree of flexibility thanks to expansion capability by

adding modules, such as a desalination device, mixing

cooler and feedwater pump modules

- Highly energy efficient due to heat recovery

- Complete control of the thermal water treatment process

with Vitocontrol control cabinet

Technical specifications- 11 deaeration grades up to 10 t/h

- Max. operating pressure: 0.5 bar

- Feedwater temperatures up to 107° C

(WAS 100: up to 90° C)

- For boiler pressures up to 25 bar

AvailabilityThe thermal water treatment station WAS 200 is already on the

market.

Vitocontrol 300-M: monitoring and controlling complex energy systems

Vitocontrol 300-M represents the ideal solution for monitoring and

controlling multivalent systems developed and built to project

specifications. Whether the installed system features one or more

boilers, heat pumps, refrigeration machines, or CHP units, the new

control unit for multivalent systems can be configured to suit the

owner's requirements.

Touchscreen for complete overviewAll the functional units – heating, cooling, and power generating

units as well as storage systems – are shown as color graphics on

the large display with a graphical user interface. System

components can thus be arranged in groups, displayed according

to low and high temperature heating or cooling, for example. The

status of each component can be viewed simply by tapping on the

touch screen. The operator then has immediate access to detailed

information on operating statuses, temperatures, energy

consumption, and current output

The hydraulics system is simplified on screen to provide a better

overview. The system status can thus be quickly checked at any

time: green check marks on the icons indicate that systems are

functioning perfectly, yellow check marks signalize deviations from

the target status, and a red check mark indicates a malfunction. By

accessing a password-protected configuration level, an authorized

system operator can take control of all parameters required to

switch the various system components on or off.

Networking with building management servicesNetworking with building management services is possible as an

option. For example, all data can be transmitted over the

standardized BacNet (Building Automation and Control Network).

Furthermore, Vitocontrol 300-M can be connected to the Internet,

so control over the system is possible from anywhere at any time.

Extensive basic configurationThe extensive standard system control features include:

- Control cabinet with 24 V mains adapter

- Process unit with 15" touch panel

- 16 digital contact inputs (e.g. for fault messages)

- 16 digital contact inputs (e.g. for selecting heat generators

or pumps)

- 16 analog temperature inputs (e.g. for buffer sensors or

flow)

- Four analog target value inputs (0 to 10 V, for entering

external target values, for instance)

- Eight analog target value inputs (0 to 10 V, for components

such as adjustment valves or variable operation mode)

- Integrated data logging with tele-controller and analog

modem

- Remote programming, system optimization, and program

updates via modem

Components for data communication, such as BACnet gateways,

power supply to pumps and valves, pulse inputs for gas and heat

meters, BUS connections for heat generators, and external

devices are also provided as an option in addition to the standard

features.

Advantages for market partners- Precision customizing to suit individual requirements

- Easy to configure with the graphical user interface

- Comprehensive standard equipment; can be extended with

additional components

- Simple diagnosis based on display of relevant operating

data and system statuses

- Simplified servicing by means of remote parameterization

Advantages for owners- System controls are perfectly tuned to suit requirements.

- Complete system control via the systems diagram display

with all the important parameters

- Easy to operate and monitor via the touch screen with color

graphics

- Secure thanks to password protection

- Networking with building management services is possible.

AvailabilityThe new Vitocontrol 300-M control unit for multivalent systems is

already on the market.

Comprehensive range of products for all fuel sources

Oil and gas-fired boilers for medium and large outputs are a main

part of Viessmann's comprehensive range of products. The range

offers customized solutions with efficient systems and outputs

between 1.0 and 120,000 kW for all application areas and all fuel

types. These include condensing systems up to 6,000 kW and

combined heat and power generation units (CHP units) up to

530 kWel or between 1.0 and 660 kWth.

The renewable energy systems range comprises solar thermal

systems with flat-plate and vacuum tube collectors for DHW

generation, auxiliary heating, and process heat generation,

biomass boilers up to 50,000 kW, heat pumps up to 2,000 kW, and

photovoltaic systems.

Viessmann also supplies everything from a single source for local

heating networks and bioenergy villages – from initial feasibility

studies and detail engineering through to the delivery of all

necessary components, such as biogas systems, heat generators,

CHP modules, geothermal piping and residential transfer stations,

and construction and commissioning.

Comprehensive services portfolioFurthermore, Viessmann supports their market partners with a

comprehensive services portfolio. These include a product

configurator for fast configuration of customized steam and heat

generation systems, a flexible logistics concept, the customer-

oriented service concept of the Technical Service department, and

the Viessmann Academy demand-oriented training program.

Images / captions

Image 1: The Viessmann Vitocrossal 200 with an output range

between 87 and 311 kW is now available with a permissible

operating pressure of 6 bar.

Image 2: The new high-pressure steam boilers Vitomax HS by

Viessmann are attractively-priced basic boilers generating 0.5 to

30 tons of steam per hour; customized versions tailored to

individual requirements are also available.

Image 3: The thermal water treatment station WAS 200 by

Viessmann is available as a fully wired module.

Image 4: The new Vitocontrol 300-M control unit is a solution

ideally suited to multivalent systems developed and built to project

specifications.

March 2015