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Description
Setting
Special displays
Generation of
actual value
Description
Setting
Special displays
Description
Setting
Effect
Note
Reset
132/348
Siemens Building Technologies
HVAC Products
4.53 Actual value of the common flow temperature
The actual value of the common flow temperature will automatically be displayed on
this operating line.
Display
0...140
– – –
No value available
The actual value of the common flow temperature is generated through maximum value
selection of the following sensor values:
• Common flow sensor B10 (ZuFu 12), if present. Otherwise, boiler temperature sen-
sor oil / gas (B2 / BMU)
• Sensor B22 of wood-fired boiler
• Buffer storage tank temperature sensor B4 (or B41, if sensor B4 has an open-
circuit)
Flue gas temperature
4.54 Actual value B8 of the flue gas temperature
The flue gas temperature currently acquired with sensor B8 will automatically be dis-
played on this operating line.
Display
--- / -50...350
– – –
No value available
4.55 Display of maximum value of flue gas
temperature B8
Display of the highest flue gas temperature acquired since the last reset was made.
Display
-50...350
The highest temperature acquired with the flue gas sensor (B8) will automatically be
displayed on this operating line (provided the auxiliary function has been activated).
In the event of an open-circuit or short-circuit of the sensor, the display maintains the
maximum temperature value acquired last.
If the auxiliary function (flue gas temperature) is not activated, the display will show "---"
in place of the maximum flue gas temperature.
Using the + / - buttons, the display can be reset to the current value. For that purpose,
both buttons must be pressed simultaneously for 3 seconds. The value is reset as soon
as the display stops flashing.
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
°C
Unit
°C
Unit
°C
CE1P2488en
18.10.2002
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