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Key Benefits Automatic Level Sensing: The reliable internal float switch initiates the pump cycle immediately when water reaches the trigger point
the 511-330-088 and 1013-200 are technically identical and interchangeable
and seat washers for a complete valve overhaul
the limit switch provides a "open on rise" safety function with a fixed 25°F differential across a 100°F to 300°F range
Lochinvar & A.O. Smith 100111022 VFD Assembly L99H008 Key Benefits Automatic Level Sensing:The Lochinvar & A. O. Smith 100111022 VFD Assembly is a high performance variable frequency drive engineered for precise motor speed control in high efficiency commercial water heaters, specifically the Cyclone BTH 400 and BTH 500 series. This OEM replacement part (formerly 9006245005) is vital for modulating the blower motor to match varying load demands, significantly enhancing energy efficiency and reducing operational wear on internal components.