Step-by-step electronic relay module, WiFi, for Wi-Fi connected chronothermostat (code 1054/101)

WiFi relay dedicated to the connected WiFi chronothermostat (item no. 1054/101) that allows wireless control of the boiler.
It also enables the activation/deactivation of any air purifiers, dehumidifiers and emergency signalling devices if humidity, Co2 and tVOC thresholds are exceeded.
It features two operating modes: manual and automatic. In manual mode it is always usable (even without the WiFi connection) and controls the relay by simply pressing the side button, ignoring any alarm message from the WiFi cronothermostat. In automatic mode, the relay reacts to alarm messages from the WiFi chronothermostat.