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The AO SMITH 100110557 is a genuine OEM element conversion kit designed to convert compatible commercial or residential electric water heaters to a 480-volt, 9-kilowatt configuration using three 3000-watt heating elements. This kit allows service technicians to modify or restore a water heater's electrical heating capacity without sourcing individual components separately. It ships in original AO SMITH factory packaging and is manufactured to OEM specifications. Licensed plumbers and water heater service technicians are the primary installers for this type of kit. The three-element configuration at 9KW total output is typical of heavier-duty or multi-phase commercial applications.
This conversion kit is suited for electric water heater applications where a 480-volt supply is available and the unit requires a wattage or voltage reconfiguration. It is not a universal or generic part. Proper application depends on the specific model number and serial number of the target water heater. Installers should verify compatibility against factory production records before ordering. This kit is commonly used in commercial settings where high-voltage three-phase or single-phase 480V power is standard.
Designed for use with specific AO SMITH water heater models and serial number ranges as defined by factory production records. This is not a universal part. Verify the target unit's model and serial number against AO SMITH OEM fitment documentation before installation.
Installation should be performed by a licensed plumber or qualified water heater service technician. Shut off all electrical power to the water heater at the breaker panel and close the cold-water supply valve before beginning any service work. Drain the tank or relieve pressure as required by the specific unit's service procedure. All electrical work must comply with applicable local codes and the National Electrical Code (NEC).
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