Viessmann oil/gas-fired boilers for mediumsized 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:
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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.
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With Vitomax HS, Viessmann is introducing new highpressure 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.
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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.
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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 transmission
U-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 selfcleaning 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:
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Its hydraulic connection is easy and inexpensive to install
and no hydraulic switch is required.
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There is no forced circulation and thus no boiler circuit
pump is required.
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There are no limitations on high flow/return temperature
differences.
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The operational characteristics of the condensing boiler are
robust against fluctuating effects from the heating network.
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The large water capacity also produces significantly fewer
burner starts, which reduces wear and tear.
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In addition, the boiler is not sensitive to limescale deposits,
even with marginal fill water quality.
Convenient Vitotronic control unit
Vitocrossal 200 can be run either at a constant or a weathercompensated 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.
Cascaded
Two 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
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Flexible in use due to the permissible operating pressure of
6 bar and permissible operating temperatures up to 95° C
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Minimum flow rate and boiler circuit pump are not required
due to the large water capacity.
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Compact hydraulic integration, as all connections can be
mounted from above
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Easy maintenance thanks to good accessibility of all
relevant components
Advantages for owners
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High level of operational reliability and low wear and tear
due to the large water capacity
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Low combustion chamber load due to reduced cyclic
operation
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Low burner wear and reduction in emission peaks when
burner fires up
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Able to withstand fluctuations in the heating network and
resistant to limescale deposits from marginal fill water
quality (6 bar, wide water spaces)
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Forced circulation is not required, nor is additional power
input needed for a pump.
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Corrosion-resistant Inox-Crossal heating surfaces with selfcleaning effect
Technical specifications
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Nominal heat output: 87 to 311 kW
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Standard utilization rate: 98 % (Hs)
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Permissible operating pressure: 6 bar
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Permissible operating temperature: up to 95° C
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Large water capacity: 229 l (at 87 kW)
Availability
Vitocrossal 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 attractivelypriced 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 oils
The 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 operation
The 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 features
A 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:
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A water-cooled burner opening for maximum heat
transmission
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Modular assembly with connectors
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Version with Economiser ECO 100 or ECO 200
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Load-bearing boiler cover
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Boiler operating platform
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Boiler seating with standard profiles
Easy to install and low maintenance outlay
Compact 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
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Attractively-priced high-pressure steam boilers
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Extensive optional features (including burner opening,
Economiser, boiler cover)
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Flexible range of uses due to compact dimensions and low
weights
Advantages for owners
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Low investment costs for basic boilers
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Low operating costs thanks to integrated Economiser
(optional)
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Also available: steam boiler customizable to suit individual
requirements
Technical specifications
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Output: 0.5 to 30.0 t/h
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Pressure stages: 6, 8, 10, 13, 16, 18, 20 bar (22, 25, 28,
30 bar on request)
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Degree of efficiency: ≥ 95 %
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Fuels: natural gas, liquid gas, EL fuel oil, heavy fuel oils
Availability
Vitomax 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
use
The 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 prewired 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 operation
The 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
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Trouble-free system operation due to dependable
compliance with required parameters for the boiler
feedwater
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Easy transport thanks to compact dimensions and
arrangement of all components on a base frame
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Significant installation time and cost savings thanks to fully
wired modules
Advantages for owners
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Reliable system operation due to deaerated boiler
feedwater and compliance with water parameter
requirements
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Effective deaeration based on a combination of trickle and
spray deaeration technology
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High degree of flexibility thanks to expansion capability by
adding modules, such as a desalination device, mixing
cooler and feedwater pump modules
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Highly energy efficient due to heat recovery
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Complete control of the thermal water treatment process
with Vitocontrol control cabinet
Technical specifications
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11 deaeration grades up to 10 t/h
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Max. operating pressure: 0.5 bar
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Feedwater temperatures up to 107° C
(WAS 100: up to 90° C)
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For boiler pressures up to 25 bar
Availability
The 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 overview
All 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 services
Networking 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 configuration
The extensive standard system control features include:
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Control cabinet with 24 V mains adapter
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Process unit with 15" touch panel
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16 digital contact inputs (e.g. for fault messages)
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16 digital contact inputs (e.g. for selecting heat generators
or pumps)
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16 analog temperature inputs (e.g. for buffer sensors or
flow)
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Four analog target value inputs (0 to 10 V, for entering
external target values, for instance)
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Eight analog target value inputs (0 to 10 V, for components
such as adjustment valves or variable operation mode)
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Integrated data logging with tele-controller and analog
modem
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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
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Precision customizing to suit individual requirements
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Easy to configure with the graphical user interface
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Comprehensive standard equipment; can be extended with
additional components
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Simple diagnosis based on display of relevant operating
data and system statuses
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Simplified servicing by means of remote parameterization
Advantages for owners
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System controls are perfectly tuned to suit requirements.
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Complete system control via the systems diagram display
with all the important parameters
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Easy to operate and monitor via the touch screen with color
graphics
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Secure thanks to password protection
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Networking with building management services is possible.
Availability
The 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 kW el or between 1.0 and 660 kW th.
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 portfolio
Furthermore, 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 customeroriented 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