Appendix Terminology; Weather-Compensated Mode - Viessmann VITODENS 111-W Operating Instructions Manual

Appendix
Terminology
(cont.)
Drinking water filter
A device that removes solids from the
water. The drinking water filter is instal-
led in the cold water pipe upstream of the
DHW cylinder or the instantaneous
water heater.
Flow temperature
The temperature of the heating water
that flows to the radiators (in the flow
line). Accordingly, the temperature of the
heating water that flows from the radia-
tors to the boiler (in the return line) is
described as the return temperature.

Weather-compensated mode

In weather-compensated mode, the flow
temperature is controlled according to
the outside temperature. This means
that no unnecessary heat is generated in
order to heat the rooms to the required
room temperature you selected.
The outside temperature is captured and
transmitted to the control unit by a sen-
sor fitted outside the building.
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