Aaon R50510 Phase Monitor 321894-708 most notably the York D1EG090N13046E

most notably the York D1EG090N13046E model series

you must specify a high-temperature steam-rated valve

These gaskets are standard for the 20-series and 24-series liquid level gauges but should be verified against your specific model number to ensure the outer diameter (OD) matches the valve body pocket

Use a multimeter to check for continuity across the terminals to verify if the switch is open or closed during the startup sequence

The assembly features high-grade brazed connections to maintain hermetic integrity under high operating pressures

Aaon R50510 Phase Monitor 321894-708 most notably the York D1EG090N13046EThe Aaon R50510 Phase Monitor is a critical electronic component designed to protect high performance HVACR systems from catastrophic motor failure. Engineered specifically for Aaon rooftop units and chillers, this three phase power monitor continuously tracks incoming voltage for phase loss, phase reversal, and low voltage conditions. By detecting power fluctuations before they reach the compressor, the R50510 voltage protector prevents overheating