Parameter	Permitted values	Default values	Range	Description
Operating mode	Permanently open Permanently closed Overtemperature NC Overtemperature NO Undertemperature NC Undertemperature NO	Overtemperature NO	–	Permanently open (deactivated) Fixed value independent of the measured temperature. The relay is open. Permanently closed (deactivated) Fixed value independent of the measured temperature. The relay is closed. Overtemperature NC If the alarm temperature is exceeded the relay will open. Overtemperature NO If the alarm temperature is exceeded the relay will close. Undertemperature NC If the temperature falls below the alarm temperature, the relay will open. Undertemperature NO If the temperature falls below the alarm temperature, the relay will close.
Switching threshold	0 °C…70 °C	45 °C	1 K	If the parameterised switching threshold value is exceeded, an action depending on the operating mode will be triggered.
Hysteresis	0 K…-10 K	-5 K	1 K	If the temperature has dropped about the set hysteresis the action will be switched off.

Example:

Operating mode	Permanently closed
Switching threshold	50°C
Hysteresis	-10 K

At 51 °C the relay stays closed.
At 41°C the relay also stays closed.
The external air conditioning unit will not be controlled. The relay is deactivated.