Control Unit; Functions And Operating Conditions In Weather-Compensated Mode - Viessmann Vitodens 100-W WB1B Installation And Service Instructions Manual

Control unit

Functions and operating conditions in weather-compensated mode

In weather-compensated mode, the
boiler water temperature is regulated
subject to the outside temperature.
Heating curve of weather-compensated control unit
A Rotary selector "tr" setting: 6
Frost protection function
Frost protection function is only possi-
ble when an outside temperature sen-
sor is connected.
50
B Delivered condition
C Rotary selector "tr" setting: 1
Frost protection function is active at
outside temperatures of < 5°C. The
burner is switched ON and the boiler
water temperature is held at 20 °C.