the internal plunger or diaphragm is likely fouled or the coil has failed

or evaporator freeze-ups caused by restricted or malfunctioning factory orifices

Key Benefits Prevents Liquid Slugging: Maintains oil temperature above the refrigerant saturation point to prevent harmful liquid migration

Technicians should look for inducer pressure switch errors

Its normally-closed configuration ensures a fail-safe stop in flow when de-energized

Setra 231G-MS2-2F-N Pressure Transducer Freon the internal plunger or diaphragmThe Setra 231G MS2 2F N is a rugged, wet to wet differential pressure transducer engineered for demanding HVACR liquid and gas monitoring. Designed for the field technician, this multi configurable unit features field selectable pressure ranges covering 10, 20, 50, and 100 PSID in unidirectional mode, and 10, 20, 50, and 100 PSID in bidirectional mode. Its all cast aluminum NEMA 4 enclosure houses a 17 4 PH stainless steel piezoresistive sensor,