Want to put a Summer/Winter switch that disable Q3 in Winter mode and enable in Summer mode

Thanks looks easy when know how!!

Thanks very much.

Is there some way to get in display when input is active " In summer mode" ?

Sorry IXO65!

0 = Summer

1 = Winter

Thanks work super. You are amazing IOX65.

Now I start look for a M-bus to Modbus converters so I also can get use of water meter.

Then project is finish.