Table of Contents
Advertisement
Benefit
Description
Setting
Effect
Generation of setpoint
Special displays
Benefit
Description
Setting
Special displays
Benefit
Description
Siemens Building Technologies
HVAC Products
Oil- / gas-fired boiler
Setpoints / actual values
4.59 Display of the boiler temperature setpoint
(TKw)
• Visualization of the current boiler temperature setpoint to better understand the pro-
cesses taking place in the plant
Display of the boiler temperature setpoint of the internally controlled boiler or of a BMU
connected via PPS.
Display
--- / 0...140
The current boiler temperature setpoint will automatically be displayed on this operating
line.
The displayed setpoint is generated based on the different heat demand signals re-
ceived from the system. In addition to the various types of heat demand shown on op-
erating line 220, the following functions (setpoints) will also be taken into consideration:
• Central setpoint compensation (setpoint compensation with pressureless header,
ZuFu 12, B10)
• Setpoint boost for combi storage tanks (refer to chapt. 6, "General control processes")
• All heat generation locks
The highest of the setpoints received is shown on the display as the flow temperature
setpoint.
– – –
No value available
4.60 Actual value B2 / PPS (TKx) of the boiler
temperature
• Visualization of actual value of the boiler temperature.
The actual boiler temperature at sensor B2 or that of the PPS-BMU will automatically
be displayed on this operating line.
Display
-50...350
– – –
Sensor with open-circuit or no sensor connected
4.61 Setpoint of minimum limitation of the return
temperature
• Preventing flue gas condensation in boilers not designed for it
The setpoint of minimum limitation of the return temperature will automatically be dis-
played on this operating line.
Basic Documentation RVP540 / RVP550
Description of the heating engineer settings
Unit
°C
Unit
°C
Factory setting
–
135/348
CE1P2488en
18.10.2002
Advertisement
Table of Contents
