IntelliChlor Flow-Temperature Switch Assembly The Pentair IntelliChlor Flow Switch Assembly (520736) is the OEM replacement flow-temperature switch assembly for the Pentair IntelliChlor salt chlorination system. What It Does The flow-temperature switch assembly monitors water flow and temperature within the IntelliChlor salt cell circuit. When adequate flow is detected, the switch signals the control board to allow chlorine generation to proceed; when flow is insufficient, it interrupts the chlorination cycle to protect the cell. A failed or fouled flow switch is a common cause of "no flow" fault codes on IntelliChlor systems even when the pump is running. This assembly includes four watertight splice connectors for a weatherproof field connection. Specifications Pentair Part Number 520736 Pro Tip Before ordering, confirm 520736 matches the part number printed on your existing flow switch or listed in your IntelliChlor installation manual. When replacing the flow switch, inspect the splice connections at the same time — the four included watertight connectors are intended for a clean, corrosion-resistant reinstall and should be used rather than reusing aged field wiring connections.
