64/166
Siemens Building Technologies
Basic Documentation RVA47.320
CE1P2379E
HVAC Products
Description of the heating engineer settings
15.07.2002
4.10
Attenuated outside temperature
•
Making use of the building’s thermal storage capacity
The attenuated outside temperature is the simulated room temperature of a fictive
building that has no internal heat source. This means that it is only the outside
temperature that affects the room 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
It is possible, however, to reset the attenuated outside temperature:
1. Press the operating line selection buttons to select line 19.
2. Press the + / - buttons for 3 seconds.
As soon as the display stops flashing, the attenuated outside temperature is reset to
the actual outside temperature.
The attenuated outside temperature is generated by the controller. It is continually
calculated based on the prevailing outside temperature. The factory setting is 0 °C.
The attenuated outside temperature affects directly only the summer / winter
changeover (setting 16).
The attenuated outside temperature acts indirectly, via the composite outside
temperature, on flow temperature control.
13
14
15
16
17
23
71
D11
18:00
06:00
06:00
18:00
18:00
h
TA
°C
TAakt
TAged
TAakt
Actual outside temperature
TAged
Attenuated outside temperature
Benefit
Description
Setting
Resetting
Process
Effect
Example
