Viessmann Vitodens 200, Service Instructions Manual

Page: 56 / 116

56
Control unit for constant temperature mode
Changing parameters in service positionsĂ"S
Ă
1" to "S
Ă
7"
(cont.)
S
Ă
3Ăć Max. boiler water temperature if DHW is heated
The display shows values in º C. As delivered condition:Ă"78".
For setting steps, see pageĂ54.
Control unit setting range 50 to 125Ă
º C, limited by the thermostat to 84Ă º C.
To optimise control characteristics, only select boiler water temperatures up
to a maximum of 78Ă º C.
S
Ă
4Ăć Additional function for heating DHW (for gas-fired boilers)
The DHW cylinder will briefly be heated by the additional function to 60Ă º C.
You can select the frequency.
For setting steps, see pageĂ54.
Parameter Heating frequency
0 (as delivered condition) Additional function inactive
1 to 30 ă1 Every time DHW is heated,
it will be heated to 60Ă º C
to
30 Every 30thĂDHW heating
it will be heated to 60Ă º C
S
Ă
5Ăć DHW heating
Different options for DHW heating may be selected.
For setting steps, see pageĂ54.
Parameter Domestic hot water heating
0ăAs delivered condition ć gas-fired boiler no DHW heating
1
DHW cylinder temp. control
2 DHW cylinder temp. control
(optimised)
*1
3 N/A
4 N/A
5 N/A
6 N/A
*1
Automatic adjustment, if a DHW cylinder temperature sensor is connected; can be
manually changed to "1".
5692Ă485
G
B