The KH45LE120 is a specialized ejector filter designed by Carrier. Primarily engineered for Carrier’s large-scale centrifugal chillers, it serves as a critical protective component that facilitates the synergistic operation of the unit's ejector and lubrication systems, while also performing dual functions of refrigerant filtration and auxiliary oil recovery. This product efficiently captures impurities—such as metal shavings, welding slag, oil sludge, and carbon deposits—present within the ejector loop, oil circuit, and refrigerant circuit. Concurrently, it aids in separating and recovering trace amounts of refrigeration oil entrained in the refrigerant flow. By preventing impurities from clogging the ejector nozzles or contaminating the system, it safeguards core components—including the compressor bearings, impellers, and ejectors—thereby eliminating potential failures caused by wear, seizing, or nozzle blockage, and ultimately extending both the operational lifespan and major overhaul cycles of the chiller unit. As an essential, OEM-grade spare part required for the annual maintenance, fault repair, and major overhauls of Carrier’s 19XL, 19XR, 19DK, and similar series of centrifugal chillers, its compatibility, stability, and filtration efficiency far surpass those of generic aftermarket alternatives. Manufactured through a multi-stage precision process and entirely free of adhesives, this product effectively maintains the cleanliness of large-scale refrigeration systems. It is widely deployed in applications involving large central air conditioning systems, industrial refrigeration, and heat pump units, offering seamless compatibility across numerous Carrier centrifugal chiller models.