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

Function description
Constant temperature control unit
DHW heating
The burner and the circulation pump for
cylinder heating are started if the cylinder
temperature lies 2.5 K below the set cyl-
inder temperature.

Weather-compensated control unit

Control and display elements
A B C D
2
3
1
0 0
4
A Pressure gauge
B Fault indicator (red)
C Optolink interface
only in conjunction with the diagnos-
tic adaptor (accessory) and Vitosoft
(accessory)
Keys at the user interface:
A
Central heating time program
B DHW heating and DHW circu-
lation pump time programs (if
connected to the control unit)
H Holiday program
D
Time/date
92
E
Boiler water temperature
Mo
RESET
(cont.)
In the delivered condition, the set boiler
water temperature is 20 K higher than
the set DHW temperature (adjustable via
coding address "60"). The burner will be
switched OFF and the circulation pump
run-on time will begin, if the actual cylin-
der temperature exceeds the set cylinder
temperature by 2.5 K.
F G
°C
+
+
OK
­
D ON indicator (green)
E Reset button
F User interface
G Rotary selector for standard room
temperature
H ON/OFF switch
E Reduced room temperature
F Set DHW temperature
O+F Emissions test function
K Standby mode
L DHW only
G Heating and DHW
M Party mode
N Economy mode
H