a mid-season replacement is recommended to prevent scale from clogging the distributor tray

ensuring perfect fit and alignment

or bi-directional configurations like -0

allowing for either local sensing through the igniter or remote sensing via a dedicated flame rod

While primarily used for line-voltage loads

Danfoss 017-520066 RT116 Control R-410A a mid-season replacement is recommendedThe Danfoss 017 520066 RT116 is a professional grade pressure switch designed for precision monitoring and control in industrial and marine HVACR systems. Built with the reliable RT series mechanism that has served the industry for decades, this adjustable differential pressure control operates within a regulation range of 1 to 10 bar (15 to 145 psi). The RT116 control features an SPDT contact function (Single Pole Double Throw) and an auto reset