Supco BC7070 Blower Control 0-4 Minutes 24V

The Supco BC7070 Blower Control is a time delay relay that is used to improve the efficiency of an HVAC system by controlling the blower fan operation. It is SPST relay configuration in this case provides significant improvement in energy efficiency, and avoids premature component damage ensuring optimal air circulation for residential and light commercial HVAC equipment needing controlled blower timing. It operates at 24V AC and has adjustable on/off delays from 0-240 seconds or 0-4 minutes for precise airflow control in furnaces, air handlers and heat pump systems, it delays the blower activation during heating cycles to maximize heat exchanger warmth transfer and extend post cycle operation to reduce residual heat waste.