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Bosch Greenstar Applications Manual
Bosch Thermotechnology Corp.Data subject to change
System 10: Setup and Programming
In this dual zone system the FW200 is installed in the
boiler for pure outdoor reset without room infl uence on
the heating curve.
Install suitable 3rd party thermostats in each zone in
a location that best represents its conditions. 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 thermostats 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 zone 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
Set the room temperatures for the three specified
temperature levels.
Enter the installer menu to configure the heating zone.
— Set heating circuit to the type of heat
distribution used.
— Set the minimum outdoor temperature, building
storage capacity, design day temperature, and
maximum supply temperature.
— Set the remaining parameters as applicable.
Set up the weekly program for DHW generation.
When done, ensure the mode selector is set to AUTO.
The room temperature will be displayed.
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.
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.
During DHW day mode the boiler will charge the DHW
tank when a demand is sensed by the DHW tank tem-
perature sensor. When DHW is satisfied, or after one
hour, the boiler will return to space heating mode.