Viessmann Vitodens 200 Start-Up/Service Instructions page 47

Vitodens 200 WB2 Service
Control Unit for Weather-Responsive Operation
Heating system types
The control unit is adjusted to the system equipment.
In the factory default setting, the heating system type is
coded "000:000".
The coding is set automatically when a tank
temperature sensor is connected (for operation with
a DHW tank).
If a supply temperature sensor is connected (for
operation with a low-loss header), the function of the
built-in circulating pump is automatically changed to
operation as a boiler circuit pump.
The control unit must be re-coded manually if a
heating circuit with mixing valve is connected:
For this purpose the corresponding heating system
type is coded in the coding address "000".
For other settings please note the numbers of system
types. See page 50 for information of how to access
the required coding level.
Note: If only heating circuit B with mixing valve is
connected (i.e. there is no direct-connected
heating circuit), the coding addresses "044,
045 and 046" must each be set to the value
"001".
System type "000:000"
Heating system with one heating circuit
without mixing valve, without domestic hot
water heating.
System type "000:001"
Heating system with one heating circuit
without mixing valve, with domestic hot
water heating.
System type "000:002"
Heating system with one heating circuit
with mixing valve, without domestic hot
water heating
or
Heating system with one heating circuit
with mixing valve, and one heating circuit
without mixing valve, without domestic
hot water heating.
System type "000:003"
Heating system with one heating circuit
with mixing valve, with domestic hot
water heating
or
Heating system with one heating circuit
with mixing valve, and one heating circuit
without mixing valve, with domestic hot
water heating.
Additional Information
47