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Special functions
6.9.2. - VFS (X)
Select a VFS sensor for fl ow measurement.
6.9.2.1. - VFS Typ
The VFS type is set here.
Settings range: Off; 1-12; 1-20; 2-40; 5-100; 10-200; 20-400 / Default setting: Off
6.9.2.2. - VFS - Position
This setting determines the position of the VFS sensor.
Settings range: fl ow, return / Default setting: return
6.9.2.3. - Reference sensor
The reference sensor used for the heat metering is set here.
Settings range: S1-S8, VFS1-2, active collector, active storage/ Default setting: S6
Caution
To prevent damage to the Vortex Flow Sensor it is strongly recommended to install it into the
return fl ow. If it is necessary to install in the fl ow, it is imperative not to exceed the maximum
temperatures of the sensor! (0° C to 100°C and -25°C to 120°C short term)
6.10. - Pressure monitor
6.10.1. - Pressure monitor
6.10.1.1. - RPS1 / RPS2
6.10.1.2. - Pmin
6.10.1.3. - Pmax
A message is shown when the pressure drops below set minimum or exceeds the set maximum pressure.
No relay is switched, for that see „6.4.12. - Pressure monitor“ on page 39.
Maximum pressure.
If this value is exceeded, an error message is displayed and the relay is switched on.
Settings range: Off; 0,0 to 10 bar
Default setting: Maximumvalue of the sensor
Minimum pressure.
If this value is undershot, an error message is displayed and the relay is switched on.
Settings range: Off; 0,0 to 1.6 bar
Default setting: 0,0
Type of pressure sensor
This menu is used to determine the type of pressure sensor used.
Please note: If e.g. VFS1 is connected, RPS1 option is not shown.
Settings range: Off; 0-0.6 bar; 0-1 bar; 0-1.6 bar; 0-2.5 bar; 0-4 bar; 0-6 bar; 0-10 bar
Default setting: Off
A message is shown and the LED fl ashes when the pressure deviates from the set minimum or maximum
value.
Settings range: On, Off / Default setting: Off
