While the 116029 is a direct OEM replacement for specific Reznor series

Fail-Safe Reliability: Integrated 9-13 psi spring return actuator provides a mechanical "normally open" safety position upon air pressure failure

this assembly provides the durability required for long-term service in commercial boiler and chiller loops

Installation Safety: Integrated short-circuit and reverse polarity protection prevents hardware damage during commissioning

This unit is specifically rated for low-pressure pneumatic signals typically up to 25-30 psi

Ashcroft B424B-200 Pressure Switch R-22 While the 116029 is aThe Ashcroft B424B 200 Pressure Switch is a high performance instrument designed for demanding industrial and HVACR applications. Engineered for precision and reliability, this 0 200 PSI pressure switch features a Buna N seal and diaphragm, ensuring excellent chemical resistance and leak free operation. The SPDT (Single Pole Double Throw) switch mechanism provides versatile control options, while the 1 4" NPT connection allows for seamless integration