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

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

Key Benefits Selectra Series 94 Compatibility: Engineered to interface directly with A1494 and A1094 amplifiers for seamless system integration

As an OEM Viessmann part

What is the primary function of this packing nut

Ashcroft B424B-200 Pressure Switch R-22 this assembly provides the durabilityThe 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