Siemens AVS75.39 Series User Manual page 59

"Room influence"
Weather compensation
alone
Weather compensation
with room influence
Pure room compensation
Siemens
Building Technologies
Line no.
HC1 HC2 HC3
750 1050 1350
Compensation variants
* Different types of compensation are available when using a room temperature
sensor.
Selection Compensation variant
% Weather compensation alone*
1...99 % Weather compensation with room influence*
100 % Pure room compensation
* Outside sensor required.
The flow temperature is calculated via the heating curve, depending on the
composite outside temperature.
This compensation variant calls for a correct adjustment of the heating curve
because with this setting the control system gives no consideration to the room
temperature.
The deviation of the current room temperature from the setpoint is acquired and
taken into account when controlling the room temperature. Heat gains can thus be
considered, ensuring more accurate room temperature control.
The authority of the deviation is set as a percentage value. The better the
reference room (correct room temperature, correct mounting location, etc.) the
higher the value can be set.
Example:
Approx. 60% Good reference room
Approx. 20 % Unfavorable reference room
To provide the function, following must be considered:
A room sensor must be connected.
"Room influence" must be set to a value between 1 and 99 %.
There should be no thermostatic radiator valves in the reference room (mounting
location of room temperature sensor) (if such valves are present, they must be
set to their fully open position).
The flow temperature is controlled depending on the room temperature setpoint,
the current room temperature and the progression of room temperature.
For example, a slight increase in room temperature leads to an immediate
reduction in flow temperature.
To provide the function, following must be considered:
A room sensor must be connected.
"Room influence" must be set to 100%.
There should be no thermostatic radiator valves in the reference room (mounting
location of the room sensor). (If such valves are present, they must be set to
their fully open position).
User manual RVS43.345
The settings in detail
Operating line
Room influence
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CE1U2354en_021
2013-09-02