TVKw
35°C
TAgem
2355
Z
07
25°C
924
923
TVKw
TVKw_unb
TVKw
Flow temperature setpoint for cooling (with minimum limitation)
TVKw_unb
Flow temperature setpoint for cooling (without minimum limitation)
TAgem
Composite outside temperature
Room influence
Line no.
Operating line
928
Room influence
When using a room temperature sensor, there is a choice of 3 different types of
compensation.
Compensation variants
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 with the help of the cooling curve as a function of
the composite outside temperature.
Pure weather
compensation
This type of compensation requires correct adjustment of the heating curve, since in
this case, the control does
not
take account of the room temperature
.
Weather compensation
with room influence
The deviation of the actual room temperature from the setpoint is measured and taken
into account when controlling the temperature. In this way, account is taken of room
temperature deviations to facilitate more accurate room temperature control. The effect
of the deviation is set as a percentage figure. The better the reference room conditions
(correct room temperature, correct mounting location, etc.) the higher the value can be
set.
•
Example:
Approx. 60 %
Good reference room conditions
Approx. 20%
Unfavorable reference room
To activate the function, following must be considered:
•
A room sensor must be connected
•
The "Room influence" setting must be between 1 and 99
•
There should be no controlled valves in the reference room (mounting location of
the room sensor) (If such valves are installed, 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 the room temperature. For example, a
Pure room compensation
101/258
Siemens Switzerland Ltd
User manual RVS61.843, RVS41.813
CE1U2355en_02
HVAC Products
6 The settings in detail
28. September 2009