Integration for Home Assistant to connect to Copmax Heat pumps. Tested towards Copmax AW 10KW (approx. year 2014).
There are a bit of different sensors available, as well as a lot of settings. Almost all settings described in the original manual is available for tweaking.
Sensors include 6x temp sensors plus some additional information about 'external run signal', 'running state' etc:
The settings are almost every value described in original manual:
The heat pump is controlled by a Siemens RWR470.10 controller. Also a remote display is connected to controllers 'RS 485' connector.
I removed the display and added a TCP-RTU modbus adapter instead. This adapter allows for connecting to the heat pump over ethernet.
Connector of the controller and adapter:
These just to be connected A<->A, B<->B and GND<->GND
The controller is running 9600,8,N,1
The controller uses Modbus for communication.
Information in this stokerpro.dk thread was a BIG help in the development.