This thermal limit switch is engineered to open the circuit at a 155F cut-out temperature

the BD series typically uses an electronic control unit (ECU)

For larger diameter assemblies (2-½" and up)

The York S1-025-35354-000 Flame Sensor is a critical safety component designed for precise flame rectified signal monitoring in high-efficiency gas furnaces

Direct OEM Replacement: Replaces the 4074ELY without requiring modification to existing Modutrol IV setups

York S1-024-35876-000 Control This thermal limit switch isThe York S1 024 35876 000 Control, specifically designed as a refrigerant pressure control switch, is a critical component for maintaining system safety and cycle stability in commercial and residential condensing units. This high pressure cutout switch operates with fixed setpoints, featuring a 50 PSI open and 71 PSI close configuration. Engineered for a vertical mount via a 1 4 inch flare nut, this SPST pressure switch is designed to protect the