or a grounded transformer

Efficient Power Conversion: Optimizes AC to DC conversion to protect downstream electronic boards and actuators from electrical spikes

Which Lennox series does this fit

using a genuine Amana-Goodman replacement part is recommended to ensure the specific 240-degree trip point and response time match the original equipment design

For service technicians maintaining Weil-McLain hydronic systems

York S1-025-19499-001 Temp Control or a grounded transformerThe York S1 025 19499 001 Temp Control is a critical fixed setting HVAC limit switch designed for precision thermal management in commercial air conditioning and heating units. This SPST temp control (Single Pole Single Throw) is engineered with a specific 65 degree open and 75 degree close logic, facilitating "close on rise" operation to ensure optimal system cycling and safety. As a genuine OEM York replacement part, it maintains the exact