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ComfoAirQ-Homie

Homie4 for Zehnder ComfoAirQ350/450/600 ventilation units

Uses pycomfoconnect (https://github.com/michaelarnauts/comfoconnect/) and Homie4 (https://github.com/mjcumming/homie4).

Installation:

Preequirements:

Python >= 3.6
MQTT broker - Tested with mosquitto https://mosquitto.org/
Python Wheels

pycomfoconnect = 0.4. 

pip3 install wheel

pip3 install comfoairq-homie

Create configuration in comfoairq_homie.yml file. ComfoAirQ-Homie searches this file in directory from which is started or it is possible to specify it by command line option "-c filename.yml".

mqtt:
  MQTT_BROKER: "192.168.88.10"
  MQTT_PORT: 1883
  MQTT_USERNAME: null
  MQTT_PASSWORD: null
  MQTT_KEEPALIVE: 60
  MQTT_CLIENT_ID: null
  MQTT_SHARE_CLIENT: False

comfoconnect:
  COMFOCONNECT_HOST : null
  COMFOCONNECT_PIN  : 0
  COMFOCONNECT_NAME : "ComfoConnect Homie Gateway"
  COMFOCONNECT_UUID : "00000000000000000000000000000006"
  COMFOCONNECT_AUTOCONNECT : True
  COMFOCONNECT_MIN_LOW_FLOW : 90 # MIN AIR FLOW AT LOW SPEED - 90 m3/h for Q450. Check  Installer menu in original App
  COMFOCONNECT_MAX_HIGH_FLOW : 450  # MAX AIR FLOW for Q450 
  
comfoairq_homie:
  HOMIE_ID              : zehnderq450
  HOMIE_NAME            : ZehnderQ450

Usage examples:

comfoairq-homie

or

python3 -m comfoairq_homie

specifying config file, logging to additional file

comfoairq-homie -c config_file.yml -l optional_log_file.log

Seting log level using environment variables. Different log level for pycomfoconnect library and other libraries

COMFOAIRQ_LOGLEVEL=ERROR  COMFOAIRQ_COMFOCONNECT_LOGLEVEL=DEBUG comfoairq-homie -c comfoairq_homie.yml -l comfoairq_homie.log

Systemd service file example:

[Unit]
Description="Homie4 ComfoAirQ Service"
After=syslog.target network.target mosquitto.service openhab2.service


[Service]
WorkingDirectory=/opt/comfoairq/
Environment=COMFOAIRQ_LOGLEVEL=INFO
Environment=COMFOAIRQ_COMFOCONNECT_LOGLEVEL=INFO
Environment=PATH=/opt/comfoairq/virtualenv/bin:$PATH
ExecStart=/opt/comfoairq/virtualenv/bin/comfoairq-homie -c /opt/comfoairq/config/comfoairq_homie.yml -l /opt/comfoairq/log/comfoairq_homie.log
Restart=always

[Install]
WantedBy=multi-user.target