CNT03728 OEM Compressor Control , Dual Staging American Standard / Trane OEM / Service First Component Replaces & Supersedes: CNT-3728 , CNT3728 , CNT03728 , CNT2275 , CNT-2275 , CNT02275 Commonly Found in the Following Packaged Heat Pump Units: 2WCC3024A1000AA , 2WCC3030A1000AA , 2WCC3030A1000AB , 2WCC3048A1000AA , 2WCX3024A1000AA , 2WCX3030A1000AA , 2WCX3030A1000AB , 2WCX3048A1000AA , 4DCY4024A1064AA , 4DCY4024A1064AB , 4DCY4024A1064BA , 4DCY4024C1060AA , 4DCY4030A1075AA , 4DCY4030A1075AB , 4DCY4030A1075BA , 4DCY4030C1070AA , 4WCC3018A1000AA , 4WCC3018A1000AB , 4WCC3024A1000AA , 4WCC3024B1000AA , 4WCC3024B1000AB , 4WCC3030A1000AA , 4WCC3030B1000AA , 4WCX3024B1000AA Commonly Found in the Following Trane Units: TTZ036A100A0 , TTZ036A100A1 , TTZ036A100A2 , TTZ048A100A0 , TTZ048A100A1 , TTZ060A100A0 , TTZ060A100A1 , 2TTZ9030A1000AA , 2TTZ9030A1000AB , 2TTZ9030B1000AA , 2TTZ9030B1000BA , 2TTZ9036A1000AA , 2TTZ9036A1000AB , 2TTZ9036B1000AA , 2TTZ9036B1000BA , 2TTZ9048A1000AA , 2TTZ9048A1000AB , 2TTZ9048B1000AA , 2TTZ9048B1000BA , 2TTZ9060A1000AA , 2TTZ9060A1000AB , 2TTZ9060B1000AA , 2TTZ9060B1000BA