Viessmann Vitodens 200, Service Instructions Manual

Page: 55 / 116

55
Control unit for constant temperature mode
Changing parameters in service positionsĂ"S
Ă
1" to "S
Ă
7"
(cont.)
S
Ă
1Ăć Pump run-on time when using a clock thermostat
The clock thermostat input will only be evaluated in heating mode.
The boiler water temperature will be maintained and the circulation pump
remains switched ON, if the clock thermostat issues a heat demand.
The burner will be switched OFF without request.
You can set the run-on time for the circulation pump.
For setting steps, see pageĂ54.
Parameter Circulation pump behaviour
0 OFF immediately after burner
switch-off
1 to 120
As delivered condition: "2"
As delivered condition: (2Ămin run-on)
ă1 to 120
Ă
minutes run-on.
Setting step range:
ă1 to ă10Ăminutes in 1 min. steps,
15 to 120Ăminutes in 5 min. steps.
S
Ă
2Ăć External blocking
Subject to set parameters, different components are disabled when
contactĂ"X
Ă
6.1"
Ă
Ć
Ă
"X
Ă
6.2" closes.
Please note:
Change strapping plugĂ"X
Ă
6" on circuit boardĂVR
Ă
20 toă
For setting steps, see pageĂ54.
Parameter Blocked-out components
0 Burner
1 Heating circuit and DHW heating
2 Heating circuit
3 Domestic hot water heating
5692Ă485
G
B