Add ON/OFF on DAIKIN EKCBX008

hello, i have an air/water heat pump and i want to add an item which allow to stop/start the heating/refresh from outside the house.

My interior heat pump reference is : EKCBX008

3 - i have an daikin wireless thermostat and i look at the connector :


is an dry contact on Com could be a solution

Perhaps i’m wrong in these 3 way

could ou give me help

thank you