it eliminates the calibration drift often found in universal aftermarket alternatives

Universal Compatibility: Approved for use with all common HFC

ensuring the ignition control system maintains peak efficiency and professional-grade performance in the field

If your system is short-cycling

ensure both the valve body and actuator are from the high-temperature series

Rheem-Ruud 42-24166-81 Pressure Switch Els PW 17895 it eliminates the calibration driftFor veteran HVAC technicians and service contractors, the Rheem Ruud 42 24166 81 Pressure Switch is the definitive OEM replacement for maintaining the safety loop in two stage gas furnaces. This dual pressure switch assembly is factory calibrated with precise setpoints of 0. 15" WC for low fire and 0. 30" WC for high fire operations, ensuring the inducer motor maintains the necessary static pressure for safe flue gas venting. Designed specifically for