Viessmann Vitodens 200 Start-Up/Service Instructions page 48

Additional Information
Control Unit for Weather-Responsive Operation
48
System type "000:002"
Heating system with
low-loss header (with temperature sensor)
one heating circuit with mixing valve
one heating circuit without mixing valve (activation of heating circuit
pump via connection expansion board)
without domestic hot water heating.
Settings/adjustments
The switching times for the heating circuit pump are set on timer
channel "heating circuit A".
The coding address "0B8" must be set to the value "000".
IMPORTANT
The built-in circulating pump operates as a boiler circuit pump and runs
whenever one of the other pumps is in operation. It is not possible to
activate a separate circulating pump.
System type "000:003"
Heating system with
low-loss header (with temperature sensor)
one heating circuit with mixing valve
one heating circuit without mixing valve (activation of heating circuit
pump via connection expansion board)
with domestic hot water heating.
Settings/adjustments
The switching times for the heating circuit pump are set on timer
channel "heating circuit A".
The coding address "0B8" must be set to the value "001" or "002".
IMPORTANT
The built-in circulating pump operates as a boiler circuit pump
and runs whenever one of the other pumps is in operation.
It is not possible to activate a separate circulating pump.
Vitodens 200 WB2 Service
with programming unit
(continued)