Fresh air ventilation panel with transformer, junction box and wiring under single cover with 4″ powered-open 2-wire damper. The iO-FAV-ENHANCED has single adjustment setup, exhaust fan control option, outdoor temperature and/or humidity limit option, and damper override capabilities. It is easy to install and meets ASHRAE Standard 62.2. In order to meet specific code requirments they system comes with preassembled control panel wired with 20VA transformer and gang box for line voltage separation, all under a single cover.