York S1-025-41330-000 Freezestat Els PW 17895 effectively clearing residual combustion products

effectively clearing residual combustion products and preventing heat soak in the heat exchanger

a failing expansion tank

Common Questions Do I need to prime this siphon before operation

making it a drop-in Erie zone valve replacement for existing low-pressure steam and water systems

York S1-025-41330-000 Freezestat Els PW 17895 effectively clearing residual combustion productsThe York S1 025 41330 000 is an OEM SPST Freezestat designed for precise low limit control in commercial and residential HVAC systems. This HVAC freeze protection switch features a fixed setpoint, engineered to open at 26F and close at 38F, preventing catastrophic ice buildup on evaporator coils or chilled water coils. By monitoring discharge air or refrigerant temperature, the York S1 025 41330 000 acts as a primary safety interlock, cutting power to