Product Information; Mechanical Room; For Retrofit Applications - Viessmann Vitocrossal 200 CM2 Series Installation Instructions Manual

Vitocrossal 200 CM2 Installation Instructions

Product Information

High efficiency gas-fired hot water condensing boiler.
For operation with modulating boiler water temperatures
in closed loop, forced circulation hot water heating
systems.
The Vitocrossal 200, CM2 boilers are CSA certified with
Viessmann burners which must be used in conjunction
with this boiler series.
The proper burner size must be verified and the burner
must be adjusted so that the maximum input of the
appropriate boiler size is always observed and adjusted.
The gas burner must always be installed according to
the instructions provided by the burner manufacturer.
The boiler model selected should be based on an accurate
heat loss calculation of the building. The boiler selected
must be compatible with the connected radiation.
The Vitocrossal 200 boiler is suitable for a maximum
operating pressure of 75 psig and a maximum boiler
water temperature of 210°F (99°C).
This boiler does not require a flow switch.

Mechanical Room

The Vitocrossal 200, CM2 boiler should be located in a
heated indoor space. The boiler should also be located
near a floor drain and as close as possible to the vertical
chimney or vent.
Whenever possible, install boiler near an outside wall so
that it is easy to duct fresh air directly to the boiler area.
Install boiler on flooring capable of supporting the weight
of the boiler filled with water.
Do not use exhaust fans without adding additional
provisions for fresh combustion air (e.g. fresh air fan)
in the boiler room and do not install the Vitocrossal 200
boiler in rooms with refrigeration equipment. This boiler
requires uncontaminated air for safe operation - do not
install where chemicals are stored.

For Retrofit Applications

Before boiler is connected to piping/heating system,
(which have been previously in service) the piping must
be flushed with city pressure water (50-60 psi) to remove
sludge and other contaminates.
Failure to flush out the heating system piping may result
in restricted flow and/or deposits resulting in boiler failure.
This failure is not covered under warranty.
WARNING
Exposing the boiler to pressures and temperatures
in excess of those listed will result in damages, and
will render warranty null and void.
Do not operate when air is polluted with halogenated

hydrocarbons (e.g. as in aerosols, paints, solvents
and cleaning agents)
Prevent very dusty conditions

Prevent high levels of humidity

Prevent freezing and ensure good ventilation.

Otherwise, the system may suffer faults and damage.
General Information
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