the 27A1D0 provides a robust SPDT (1NO/1NC) output rated for 8A resistive at 120/240VAC

or a manifold pressure drop that causes the flame to rollout or extinguish shortly after startup

this filter drier shell is versatile enough for use in commercial refrigeration cycles as well as large-tonnage air conditioning systems

or fails to generate sufficient millivolts to keep the thermopile active

Is the S1-FHM3728 compatible with all York units

York S1-025-41289-000 Temp Control R-134A the 27A1D0 provides a robustUpgrade or repair commercial and residential furnaces with the York S1 025 41289 000 Temp Control, a high performance HVAC limit switch engineered for critical thermal protection. This genuine York OEM replacement part is a primary safety component designed to break the electrical circuit when internal plenum temperatures reach 190F, preventing heat exchanger damage and hazardous conditions. Once the system cools to 160F, the bimetal disc