York S1-2702-316P/A Limit Switch 321894-706 the D-3153 series is UL

the D-3153 series is UL component recognized for use on classified smoke and combination fire/smoke dampers tested up to 250°F

and that the physical dimensions of the NEMA 48 frame fit your housing

verify your igniter type before installation

featuring improved material resilience while maintaining the same HVAC part compatibility footprint

With a timing specification of 1 to 20 seconds on and 40 to 110 seconds off

York S1-2702-316P/A Limit Switch 321894-706 the D-3153 series is ULThe York S1 2702 316P A Limit Switch is a critical safety component engineered for precise thermal regulation within York and Johnson Controls HVAC systems. This HVAC high limit switch functions as a primary safety cut out, monitoring heat exchanger temperatures to prevent overheating conditions that can lead to equipment failure or hazardous operation. As a direct replacement for S1 2702 3161 A, as well as the S1 2702 316P and S1 2702 316PA models,