Room influence
Line no. Operating line
HC1 HC2 HC3P
750 1050 1350 Room influence
Compensation variants
When using a room temperature sensor, there is a choice of 3 different types of
compensation.
Setting Type of compensation
− − − % Pure weather compensation *
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.
Pure w
eather
compensation
This type of c
ompensation calls for a correct adjustment of the heating curve since in
that case the control gives
no consideration to the room temperature.
The deviation of the actual room temperature from the setpoint is measured and taken
into account when controlling the temperature. Heat gains can thus be considered,
ensuring more accurate room temperature control. The effect of the deviation is set as
a percentage figure. The better the reference room (correct room temperature, correct
mounting location, etc.) the higher the value can be set.
Weather compensation
with room influ
ence
• Example:
Approx. 60 %
Good reference room conditions
Approx. 20% Unfavorable reference room
To activate the function, foll
owing must be considered:
• A room sensor must be connected
• The "Room influence" setting must be between 1 and 99
• There should be no thermostatic radiator valves in the reference room (mounting
location of room sensor) (If such valves are present, they must be set to their fully
open position)
Pure room compensation
The flow temperature is controlled depending on the room temperature setpoint, the
current room temperature and the progression of the room temperature. For example, a
slight increase of the room temperature causes an immediate drop of the flow
temperature.
To activate the function, foll
owing 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)
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Siemens Switzerland Ltd User manual RVS61.843, RVS41.813 CE1U2355en_02
HVAC Products 6 The settings in detail 28. September 2009
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