Gira KNX 2139 00 Product Documentation page 137

Room temperature controller | Room temperature controller - General
Lower hysteresis limit
Definition of bottom hysteresis (switch-on temperatures) of the heating.
This parameter is only visible if "Type of heating control = Switching 2-point feed-
back control (ON/OFF)".
Upper hysteresis limit
Definition of top hysteresis (switch-off temperatures) of the heating.
This parameter is only visible if "Type of heating control = Switching 2-point feed-
back control".
Type of control (if applicable, for basic
and additional level)
Selecting a feedback control algorithm (PI or 2-point) with data format (1 byte or 1
bit) for the cooling system
Type of cooling (if applicable, for basic
and additional level)
Adapting the PI algorithm to different cooling systems using predefined values for
the proportional range and reset time control parameters.
With the "Using control parameters" setting, it is possible to set the control paramet-
ers in a manner deviating from the predefined values within specific limits.
This parameter is only visible if "Type of cooling control = PI control".
Proportional range
Separate setting of the "Proportional range" control parameter.
This parameter is only visible if "Type of cooling = via control parameter" and the
cooling control type "PI control".
Reset time (0 = inactive)
Separate setting of the "Reset time" control parameter.
This parameter is only visible if "Type of cooling = via control parameter" and the
cooling control type "PI control".
Lower hysteresis limit
Definition of bottom hysteresis (switch-off temperatures) of the cooling.
This parameter is only visible if "Type of cooling control = Switching 2-point control".
Upper hysteresis limit
Definition of top hysteresis (switch-on temperatures) of the cooling.
This parameter is only visible if "Type of cooling control = Switching 2-point control".
Heating actuator 6-gang with controller | Order no. 2139 00 | 21393100
-12.8...-0.5 K
0.5...12.7 K
continuous PI control
switching PI control (PWM)
switching 2-point feedback control
Cooling ceiling (1.0 K / 830 min)
Fan coil unit (1.0 K / 500 min)
Split unit (1.0 K / 500 min)
Floor cooling (1.5 K / 1000 min)
via control parameter
1...5...12.7 K
0...830...2550 min
-12.8...-0.5 K
0.5...12.7 K
Page 137 of 257