Reznor 112754 M/R Blocked Flue Switch L175F

The Reznor 112754 Blocked Flue Switch L175F is an essential component that is used to control the venting conditions & avoid unsafe operations in HVAC systems. This element works by sensing the presence of flue blockages and stopping the operation of the system until it is manually reset, preventing the burners and other parts of the system. It is usually fitted to commercial and residential furnaces and heating units, assists in the controlled operation, and ensures the correct conditions of the heating process during normal operation.