Weather-Compensated Control Unit - Viessmann VITODENS 200-W Service Instructions Manual

Function description
Constant temperature control unit
DHW heating
The burner and the cylinder primary
pump are started if the cylinder tem-
perature lies 2.5 K below the set cylin-
der temperature.

Weather-compensated control unit

Control and display elements
A Pressure gauge
B Fault indicator (red)
C Optolink interface
only in conjunction with the diag-
nostic adaptor (accessory) and
Vitosoft (accessory)
92
(cont.)
In the delivered condition, the set boil-
er water temperature is 20 K higher
than the set DHW temperature (adjus-
table via coding address "60"). The
burner will be switched OFF and the
circulation pump run-on time will
begin, if the actual cylinder tempera-
ture exceeds the set cylinder tem-
perature by 2.5 K.
D ON indicator (green)
E Reset button
F User interface
G Rotary selector for standard room
temperature
H ON/OFF switch