17
Setting the parameters
Room Temperature Controller KNX eTR 101-BA2
• Version: 20.04.2021 • Technical changes and errors excepted.
If the comfort set point value is used as a basis:
If the comfort set point value is used as a basis, an increase/decrease relative to this
value is set.
Set point values for frost/heat protection (building protection)
The building protection mode is used, for example, when windows are opened for ven-
tilation. Set points for frost protection (heating) and heat protection (cooling) are de-
termined which may not be modified from outside (no access via operating devices
etc.). The building protection mode may be activated with delay, which allows you to
leave the building before the controls switch to frost/heat protection mode.
General actuating variables
This setting only appears for the ‘heating
and
cooling’ control types. This is where you
can decide whether to use a shared variable for heating and cooling. If the 2nd stage
has a common variable, this is also where you determine the control mode of the 2nd
stage.
When using the actuating variable for a 4/6-way valve the following applies:
0%...100% heating = 66%...100% actuating variable
OFF = 50% actuating variable
0%...100% cooling = 33%...0% actuating variable
Reduce heating set point (in 0.1°C)
(for heating)
0…200; 50
Increase cooling set point (in 0.1°C)
(for cooling)
0…200; 60
Nominal value frost protection\r\n(in 0,1°C)
-300…800; 70
Activation delay
none • 5 s • ... • 5 min • … • 2 h
Nominal value heat protection (in 0,1°C)
-300…800; 350
Activation delay
none • 5 s • ... • 5 min • … • 2 h
For heating and cooling
• separate actuating variables are used
• common variables are used for
Stage 1
• common variables are used for
Stage 2
• common variables are used for
Stage 1+2
Use actuating variable for 4/6-way valve
(only for shared actuating variable on stage 1)
No • Yes
Control type
(for stage 2 only)
• 2-point control
• PI control
Regulating variable of the 2nd stage is on
(for stage 2 with 2-point control only)
• 1-bit object
• 8-bit object
