Fantech Triple Function Wall Control (2 Wire)

The EDF1R is designed to provide 3 modes of operation to the Heat/Energy Recovery Ventilator. Features: Pressing the "fan" button once initiates the unit to run at a continuous low speed of operation (green) Pressing the button twice allows the HRV/ERV to run continuous cycle of 20 minutes on and then standby for 40 minutes Pressing the button a third time will make the system run recirculation at high speed (red). The ventilation system will stay on the last function selected until it is manually changed.