Boiler Insulation; Boiler Connections; Water Side Connection - Viessmann Vitocrossal 200 CM2 Series Installation Instructions Manual

Boiler

Boiler Insulation

Boiler Connections

Water Side Connection

Note: Make all connections free of load and torque stresses.
The existing heating system must be properly flushed,
especially if the Vitocrossal 200 boiler is connected to
an existing heating system in a retrofit application.
See page 9 for details.
Connect the system to the boiler according the diagram
on page 13 and 14.
Note: All connections which are not being utilized for
water connections or for controls must be properly
closed.
12
Vitocrossal 200 CM2 Installation Instructions
Remove all the components of the boiler jacket from the
shipping box.
1. Wrap around the insulation blanket (black nylon facing
out) and look for boiler's fitting cutouts.
2. Secure the ends of the blankets with supplied springs.
3. Mount front insulation blanket (If necessary change
the burner door bracket to right hand opening, see
page 15 for details). Secure with springs.
4. Secure the front insulation blanket with supplied
springs.
The supplied air vent and pressure relief valve must be
installed on the top of the boiler - the alternate pressure
relief valve location may be in the boiler supply line. The
piping to the precharged expansion tank, as well as any
automatic feed water required, must be connected to
the boiler drain opening or the safety return connection.
Boiler pump shall be installed on return pipe, pumping
water into the boiler.
The supplied low water cut-off should be installed directly
on top of the boiler or may be installed in the boiler return
piping above the pressure vessel.
Note: Piping diagrams for specific system layouts are
available. Please enquire with your local Viessmann
sales representative.
IMPORTANT
The Vitocrossal 200 is only suited for hot water heating.
Do not install a 4-way mixing valve, bypass valve or
similar.