Actual Temperature - Viessmann Vitodens 200-W B2HA series Operating Instructions Manual

Vitodens 200 Series 19 to 150 Operating
Terminology
(continued)
Factory settings: Slope = 1.4 and level = 0.
A Changing the slope: The steepness of the heating
curve changes
B Changing the level: The heating curves are shifted
in parallel in a vertical direction

Actual temperature

Current temperature at the time of the scan; e.g. actual
DHW temperature.
Night setback
See "Reduced heating mode".
Standard heating mode
When you are in the house during the day, you can heat
the rooms in standard heating mode. Set the periods
using the time program for central heating. During these
periods, the rooms are heated to the standard room
temperature.
Standard room temperature
When you are in the house during the day, set the
standard room temperature (see page 16).
Open flue operation
The combustion air is drawn from the room where the
boiler is installed.
Balanced flue operation
The combustion air is drawn from outside the building.
Reduced heating mode
When you are out or during the night, you can heat the
rooms in reduced heating mode (setback mode). Set the
periods using the time program for central heating. During
these periods, the rooms are heated to a reduced room
temperature.
Reduced room temperature
When you are out or during the night, set the reduced
room temperature (see page 16). See also "Reduced
heating mode".
Safety valve
A safety device that must be installed by your heating
contractor in the cold water pipe. The safety valve opens
automatically to prevent excess pressure in the DHW
tank.
Solar circuit pump
In conjunction with solar thermal systems. The solar
circuit pump delivers the cooled heat transfer medium
from the DHW tank indirect coil to the collectors.
Set temperature
Default temperature that should be reached;
e.g. set DHW temperature.
Summer mode
Heating program "Only DHW".
At warmer times of the year, i.e. when rooms do not
have to be heated, you can disable heating mode.
The boiler remains enabled for DHW heating.
Tank primary pump
Circulation pump for heating the DHW in the DHW tank.
Drinking water filter
A device that removes solids from the water. The drinking
water filter is installed in the cold water pipe upstream of
the DHW tank or the instantaneous water heater.
Weather-compensated mode
In weather-compensated mode, the heating 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 set room
temperature you selected.
The outside temperature is captured and transmitted to
the control unit by a sensor fitted outside the building.
DHW circulation pump
The DHW circulation pump transports the hot water
around a circuit between the DHW tank and the draw-
off points (e.g. hot tap). This makes hot water available
quickly at the draw-off point.
Your contact
Contact your local contractor if you have any questions
regarding the maintenance and repair of your system.
You may, for example, find local contractors on the
internet under www.viessmann.com.
Additional Information
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