York S1-025-38901-000 Limit Switch technicians must verify the drill

technicians must verify the drill size and flow coefficient (Cv) match the manufacturer’s manifold specifications

providing the high-accuracy feedback necessary for smart thermostat setup and advanced building automation

and managing digital I/O circuits

ensuring RoHS and REACH compliance on every service call

Direct Replacement: Verified 1:1 replacement for the discontinued Barber Colman N2-4 wrench

York S1-025-38901-000 Limit Switch technicians must verify the drillThe York S1 025 38901 000 Limit Switch is a critical safety component designed for specific air handling and furnace applications where precise thermal monitoring is required. This SPST (Single Pole Single Throw) switch features an automatic reset (A R) mechanism, ensuring the circuit closes automatically once temperatures return to the operating range. With a factory calibrated open temperature of 55F and a close temperature of 45F, this HVAC limit