The touch sensitive external switch can be connected to the Shadow controllers (18kW - 27kW versions) to enable external trigger to switch on the heat output. The Schneider Spring Return Enclosed Push Button (XALD101) can be used to activate the 10 minute time tag functionality on these controllers.
When you heating solution arrives, it is setup and ready for installation. Control systems are factory setup according to your specific needs. All you need is a competent electrician to install the heaters and controllers in your specified locations.