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Johnson Controls T46JEA-1 Fan Coil Thermostat
With a maximum operating pressure of 450 PSI (standard) or up to 700 PSI for R-410A applications
Key Benefits Precision Safety: Calibrated for 150°F (Open) / 120°F (Close) to prevent heat exchanger damage
the internal diaphragm is likely ruptured or worn and requires replacement with the D-251-6000
this model is designed for R-22
Armstrong International D503157 Air and Gas Vent Refrigerant Johnson Controls T46JEA-1 Fan CoilThe Armstrong International D503157 Air and Gas Vent is a high performance Series 21AR Cast Iron Fixed Pivot Ball Float designed for the efficient removal of air and gases from pressurized liquid systems. Engineered with a 1 2" NPT connection and a precision 5 64" orifice, this unit is built to manage a maximum operating pressure of 133 PSI. It is technically identical to the 21 AR 1 2 133 model, providing a robust solution for preventing air binding