Viessmann Vitodens 200 Operating Instructions And User's Information Manual page 26

Multiple-boiler control unit
Condition: Access level 3 must be selected (see page 6).
Function 001-B
Cascade control
Configuration
Configure
Function Yes
Outdoor temperature sensor
Outside sensor
Yes
Freeze-up protection
Frostprot due to
outsidetemp Yes
Timer
Time clock
Yes
Holiday program
Holidayprogramme
Yes
Pump
Pump
Yes
Number of boilers
Number of
boilers 2
26
Select "Function Cascade control" with
already displayed; confirm with
Select "Configuration" with
Select "Yes" with /
Select "Yes" if an outdoor temperature sensor is connected to the control unit.
Condition: "Outside sensor Yes" must be configured.
Select "Yes" if the supply temperature should not drop below an adjustable minimum
temperature from a certain outdoor temperature.
Condition: "Outside sensor Yes" must be configured.
Select "Yes" if the control unit should be operated with a timer, i.e. switching periods
can be set up. If "NO" is selected, control will not function on outdoor reset until
"Party Mode" contact is closed.
Condition: "Time clock Yes" must be configured.
Select "Yes", if operation with a holiday program is required (see page 30).
Select "Yes" if a heating system pump is connected to the control unit.
Enter the number of boilers in the multiple-boiler system.
, if "Function Cascade control" is not
.
; confirm with .
; confirm with .