A-1 Components BC7070 Time Delay Blower Control BC-7070-A/M Replaces A-1 Components F7070 Features/Benefits • Increase Heating Efficiency By Delaying The ON and OFF Cycle Of The Blower Fan. • Control Voltage: 24 VAC. • Relay Contacts: SPST. • Blower On Time: 0 – 240 Seconds Adjustable. • Blower Off Time: 0 – 240 Seconds Adjustable