Limitation Of The Return Temperature - Siemens Synco 700 Basic Documentation

Limitations of the return
temperature
Response of main pump
/ system pump in the
event of locking signals
Settings
Return sensor
Note
Settings
Building Technologies
HVAC Products
Refer to subsection 8.8.3 "Limitation of the return temperature".
The respective setting determines whether or not the main pump or the system pump
shall respond to locking signals:
Setting
Main pump locking signal = Off
Main pump locking signal = On
System pump locking signal = Off
System pump locking signal = On
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Main controller > Limitations
Main menu > Settings > Primary controller > Limitations
Operating line
Flow temperature max
Flow temperature min
Flow temperature rise max
System pump locking signal
Frost protection for the plant
8.8.3

Limitation of the return temperature

Both the main controller and the primary controller offer maximum limitation of the
return temperature depending on the active consumers. The following types of limita-
tion are available:
• Maximum limitation in space heating mode
• Maximum limitation in DHW heating mode
Both have the following in common:
• A return temperature sensor must be configured
• Limitation of the return temperature is only possible with primary controller type 1
Maximum limitation of the return temperature with primary controller type 1:
Y1
B1
M1
B7
Primary controller
Minimum limitation of the return temperature is not supported.
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Main controller > Limitations
Main menu > Settings > Primary controller > Limitations
Operating line
[Curvepoint 1] outside temp
[Curvepoint 1] return temp
[Curvepoint 2] outside temp
[Curvepoint 2] return temp
DHW return temp max
Legionella return temp max
Modular Heating Controller RMH760B
8 Main controller and primary controller
Effect when a locking signal occurs
Pump will be deactivated
Pump will continue to operate
Pump will be deactivated
Pump will continue to operate
Range
0...140 °C
---- / 0...140 °C
---- / 1...600 K/h
Off / On
Off / On
B1
M1
B7
Y1
Main controller
Range
–50...50 °C
---- / 0...140 °C
–50...50 °C
---- / 0...140 °C
---- / 0...140 °C
---- / 0...140 °C
Factory setting
140 °C
---- °C
---- K/h
Off
On
Factory setting
–20 °C
---- °C
10 °C
---- °C
---- °C
---- °C
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CE1P3133en
05.02.2007