Self-Adaptation; Additional Effects; Generation Of Setpoint; Display Of Setpoint - Siemens RVD110 Basic Documentation

Siemens Building Technologies
HVAC Products
A substitute line is needed because the heating curve is slightly deflected. This is re-
quired to compensate for the nonlinear radiation characteristics of the different types of
radiators.
The basic setting is made according to the planning documentation or local practices.
The heating curve is based on a room temperature setpoint of 20 °C.

11.3.2 Self-adaptation

The heating curve is defined by its slope and a possible parallel displacement both of
which are adjustable. By changing its slope and by considering heat gains, the heating
curve can adapt to environmental conditions. The learning steps become smaller as the
number of operating hours increase.
The selection of self-adaptation (1 = active, or 0 = inactive) is made on operating line 66.
Self-adaptation of the heating curve requires a room temperature sensor and should
only be used if there is a suitable reference room.
In spite of adaptation, precise adjustment of the heating curve and room influence (op-
erating lines 5 and 70) is a must to ensure correct functioning.

11.3.3 Additional effects

•
If, in the reference room, there are heat gains which continuously affect the room
temperature, this effect can be included in the self-adaptation. For this purpose, the
room temperature increase in K caused by the heat gains is to be set on operating
line 69
• If the basic settings do not produce satisfactory comfort conditions, it is possible to
make a manual and permanent parallel displacement of the heating curve on operat-
ing line 71
11.4

Generation of setpoint

The setpoint is always generated as a function of the demand for heat.

11.4.1 Display of setpoint

The effective setpoint generated by the controller as a result of the different influencing
factors can be displayed on operating line 27 by keeping button

11.4.2 Setpoint of weather-compensated control

The setpoint is generated via the heating curve as a function of the outside tempera-
ture. The outside temperature used is the composite outside temperature.
Basic Documentation RVD110, RVD130
11 Function block Space heating
or depressed.
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CE1P2381E
27.05.2004