Autotrol 460TC Timer Control for Performa Series 4001086. Autotrol 460TC Timer Control for Performa Series Autotrol 440i Timer Motor is discontinued and replaced by the 460TCThe Autotrol 460TC Tiimer Control for the Performa 255 Valve is the replacement for old style 440i Timer Motor. Transformer is not included. Simple set-up and programming Calendar override 12 volt operation 7 day variable reserve Autotrol 460TC Timer Control Installation Operation Manual 440i 1040778 Autotrol Parts & Accessories