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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the heating engineer settings
18.10.2002
4.198 Attenuated outside temperature
TAxged
•
Making use of the building’s thermal storage capacity
The attenuated outside temperature is the simulated room temperature of a fictive
building with no internal heat source that is only affected by the outside temperature.
This operating line automatically displays the actual value [°C] of the attenuated outside
temperature. No direct setting can be made.
The generation of the attenuated outside temperature cannot be influenced.
Display
Unit
-50...50 °C
The attenuated outside temperature is generated by the controller. It is continually cal-
culated based on the prevailing outside temperature. The factory setting is 0 °C.
The attenuated outside temperature affects directly only the summer / winter change-
over (setting 29).
The attenuated outside temperature acts indirectly, via the composite outside tem-
perature, on flow temperature control.
The attenuated outside temperature can be reset on operating line 34.
TAakt
Actual outside temperature
TAged
Attenuated outside temperature
Benefit
Description
Setting
Process
Effect
Resetting
Example
13
14
15
16
17
23
71
D11
18:00
06:00
06:00
18:00
18:00
h
TA
°C
TAakt
TAged
