Played with V300 C8 controller. If anybody need Komfovent external CO2 sensor (connected to C8 terminal pin 3-5 with wire) I managed to get the reading out by adding this sensor:
# Komfovent CO2 air quality sensor
- name: "Komfovent Air CO2 sensor 'ppm"
address: 951
data_type: uint16
scale: 1
unit_of_measurement: "ppm"
state_class: measurement
scan_interval: 30
Is it possible to use komfovent switches in automations? I don’t see them in the UI and in YAML it requires device and entity id? Where should I add them?