Watts F274751 Valve 320734-701 maintaining optimal system airflow and

maintaining optimal system airflow and operational efficiency in demanding mechanical environments

Can I use a higher WC rated switch

including the CH 402 through CH 752 and CF 402 through CF 752 series

cutting the 24V control circuit if it detects a blocked vent or inducer motor failure

Watts F274751 Valve 320734-701 maintaining optimal system airflow andThe Watts F274751 174A flow switch is a 3 4" liquid flow control device designed for HVAC, boiler, hydronic heating, chilled water, and industrial fluid system applications. Commonly referenced as the Watts 174A flow switch, this unit is used to monitor fluid movement and activate or deactivate connected equipment based on system flow conditions. The 125 FS configuration is widely applied in circulation systems where dependable flow proving is