Swegon CASA, ERV (FTX), rotary heat exchanger and MODBUS

Fresh air at home is very important ! For more than 15 years ago, at a major renovation of our house, we installed an ERV or in Swedish FTX system. Since then there have been nice updates for FTX equipment so when one of the fans was a little noicy and when the motor for the rotor died it was time to do an upgrade instead of repairing the old one. So we purchased an CASA R7 Genius(R7).

For me its important to get as much data as possible, to optimize energy consumption in our house, so despite that the the R7 have a nice app we also added a SEM interface to get the data, via MODBUS, that is available.