York S1-1PS0309 Pressure Switch Els PW 17895 This specific model serves as

This specific model serves as the direct replacement for B697 fuse links

this spring is specifically for the RPC (Relay Pressure Control) pilot-operated models

5 to 3 inches in size

Designed to stabilize the phase shift for both the compressor and the condenser fan motor

York S1-1PS0309 Pressure Switch Els PW 17895 This specific model serves asThe York S1 1PS0309 Pressure Switch is an OEM specified safety component engineered for high altitude gas furnace installations. This SPST pressure switch is calibrated to a fixed setpoint of 0. 90" WC (water column), ensuring the inducer motor maintains the critical vacuum thresholds necessary for safe flue gas venting in low density air environments. Designed for precise atmospheric monitoring, this switch replaces standard units to prevent nuisance