Its high max ambient temperature rating allows it to function as either a Mixed Air or Discharge Air sensor depending on system configuration

Key Benefits for Contractors: Direct Replacement: Engineered as the exact substitute for DFS-221-271

ensuring compatibility with heavy-duty AAON electrical circuits

Optimal Pressure Stability: Minimizes local turbulence to maintain steady outlet pressures across varying inlet conditions

Rheem-Ruud SP12766 Vacuum Switch Els PW 17895 Its high max ambient temperatureThe Rheem Ruud SP12766 Vacuum Switch is an essential OEM assembly engineered for high accuracy pressure monitoring in Power Vent 2 water heaters and compatible HVAC systems. Constructed with a heavy duty housing and a highly responsive internal diaphragm, this vacuum pressure switch serves as a critical safety interlock, ensuring that the inducer fan is pulling a sufficient draft before allowing the combustion cycle to proceed. Designed specifically