2 Product overview
2.1 Type summary
LCD display
with
backlight
2.1.1 Equipment combinations
For HVAC control,
switching and monitoring
functions
For HVAC control,
switching and monitoring
functions
2.2 Features
● Measurement of room temperature (POS8.4420/109)
● Measurement of room temperature and humidity (POS8.4440/109)
● Keys to adjust the room temperature setpoint, ventilation, domestic hot water,
scheduler settings depending on the controller application
● LCD display of room temperature, operating modes, humidity (only for
POS8.4440/109), scheduler, notification, and clock setting
● Operation with 8 pushbuttons
● 2-wire interface to the controller through KNX PL-Link
● Power supply of the room operator unit over KNX PL-Link
● LCD display with backlight