Description
The Tjernlund Products 950-1007 Fan Prover Kit is a monitoring component designed to verify proper fan operation by detecting airflow or pressure conditions within a venting assembly. Its sensing switch responds to changes created when the fan operates, allowing the control system to confirm that the required draft or air movement is present before equipment operation continues. Used with compatible HVAC systems and powered ventilation equipment, the unit is mounted near the fan assembly and connected to the control circuit for operation verification. By confirming fan activity and preventing operation during airflow failure conditions, it supports safer equipment control and stable system operation.
