Bosch Greenstar 57 Manual page 44

4 4 | Bosch Greenstar
System 8: Setup and Programming
In this single zone system the FW200 is installed in the
boiler for pure outdoor reset without room infl uence.
Install a suitable 3rd party thermostat in the living space in
a location that represents the entire zone. Avoid locations
exposed to direct or indirect sunlight, heat sources, draft,
etc. that can lead to malfunctioning.
DHW is generated by the boiler loading the indirect fi red
DHW tank following the DHW program.
Initial setup:
Program the 3rd party room thermostat according to the
manufacturer's instructions. it is recommended to set up a
day and night heating program with reduced temperatures
at night and when the home is unoccupied.
Boiler and FW200 programming:
See the installation instructions for description of buttons
and displays, and for details on setup and programming.
Power up the boiler.

When commissioning for the first time, set the display

language, date and time.
Upon first commissioning the automatic system

configuration starts. Wait 60 seconds and follow the
instructions displayed. You have the option of using
the factory settings or entering custom parameters to
better match the individual requirements.
Set the boiler for permanent day mode by switching

the dial on the FW200 to
— Comfort
Enter the installer menu to configure the heating zone.

— Set heating circuit to the type of heat
distribution system used.
— Set the minimum outdoor temperature, building
storage capacity, design day temperature, and
maximum supply temperature.
Set up the weekly program for DHW generation.

When done, ensure the mode selector is set to AUTO.

The room temperature will be displayed.

Data subject to change
Additional information
With outdoor reset the boiler will provide the water
temperature according to the heating curve. There is no
room infl uence on the heating curve in this system. When
the zone is satisfi ed the boiler and pump will shut off.
 The boiler will always attempt to run at its highest
efficiency in low fire for as long as necessary.
 The boiler will shut down when the target temperature
is reached followed by a 3 minute post purge by
the pump unless the 3rd party room thermostat is
satisfied prior.
When a demand for DHW is sensed by the DHW tank

temperature sensor, the boiler will go into DHW mode.
When DHW is satisfied, or after one hour, the boiler
will return to space heating mode.
Applications Manual
Bosch Thermotechnology Corp.