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coupling failures
Standard wiring involves connecting line power to L1 and L2
eliminating the need to source separate electrical components for the reversing valve assembly
Technicians should inspect the collector box and gaskets during teardown
Emerson Alco 052957 Power Assembly Refrigerant coupling failuresThe Emerson Alco 052957 Power Assembly (model XC 726FC2B) is a field replaceable component engineered for high performance thermal expansion valves used in R12 refrigerant systems. This XC series power assembly features a 1 4" SAE flare equalizer connection, ensuring accurate pressure sensing for precise superheat control across varying load conditions. Designed for a medium to low temperature range of 20F to +40F, it utilizes a 10ft capillary tube to
