it does not require a neutral connection or external power to operate the timing mechanism

and Johnson Controls that support Balco curves

it prevents communication errors and signal degradation across the control loop

The White-Rodgers 3L09-24 is an "Open on Rise" switch

Designed for precision gas pressure regulation

York S1-025-33307-002 Reversing Valve Els PW 17895 it does not require aThe York S1 025 33307 002 Reversing Valve is a critical 4 way pilot operated component engineered specifically for York heat pump systems. This heavy duty assembly features a 1 2" ODF suction line and 7 8" ODF discharge connections, facilitating precise refrigerant flow reversal to switch between heating and cooling cycles. Field proven for high pressure R 410A applications, this valve is primarily designed for B6HX series 15 SEER single packaged