York S1-2702-316P/A Limit Switch 321894-706 The ZoneFirst AOBD-18X10 is a

The ZoneFirst AOBD-18X10 is a heavy-duty 18x10 rectangular damper engineered for precise airflow management in residential and light commercial zoning systems

Technicians should look for signs of water leaking from the collector box housing

What maintenance is required for the float mechanism

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 ZoneFirst AOBD-18X10 is aThe 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,