York S1-025-50188-000 Pressure Switch 320788-703 Optimized for Propane: Specifically calibrated

Optimized for Propane: Specifically calibrated for LP gas heating systems with a fixed 10" WC pressure setting for consistent burner performance

Engineered as a resistance temperature detector (RTD)

while the high-contrast terminal designations reduce installation errors during high-stress service calls

Enhanced Combustion Efficiency: Precision airflow calibration optimizes the oxygen-to-fuel mix for cleaner

When you're out in the field and need a reliable 3/4 HP furnace blower motor

York S1-025-50188-000 Pressure Switch 320788-703 Optimized for Propane: Specifically calibratedThe York S1 025 50188 000 is an OEM high pressure switch engineered for critical system protection in residential and commercial HVAC equipment. Traditionally found in R 410A systems, this normally closed switch monitors head pressure to prevent compressor damage and mechanical failure. It features a factory calibrated 650 PSI cut out threshold, which opens the electrical circuit when internal pressures exceed safe limits, and a 450 PSI cut in reset