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The A.O. SMITH 100109159 is a three-element conversion kit designed to convert compatible electric water heaters from a standard two-element configuration to a three-element setup operating at 5000 watts and 208 volts. The kit is manufactured using Apcom components, a recognized name in water heater heating element and thermostat assemblies. This conversion is typically performed by licensed plumbers or water heater service technicians working on commercial or high-demand residential installations where faster recovery and increased capacity are required.
This kit is suited for electric water heater applications where a 208-volt power supply is available and a three-element configuration is necessary to meet higher hot water demand. Typical installation scenarios include multi-family residential buildings, light commercial settings, and facilities with elevated simultaneous draw requirements. The 5000-watt rating at 208 volts provides a defined wattage output appropriate for these higher-demand environments.
Designed as a conversion kit for compatible A.O. SMITH electric water heaters configured for three-element, 208-volt operation. No specific model numbers or system families were provided in the product data. Verify compatibility with the target unit model number before ordering.
Installation should be performed by a licensed plumber or qualified water heater technician. Shut off all electrical power to the water heater at the circuit breaker and confirm the circuit is de-energized before beginning any work. Drain the tank as required by the conversion procedure and follow all applicable local plumbing and electrical codes, including NEC requirements for water heater circuits. Do not energize the elements before the tank is fully filled with water, as dry-fire damage will void the component warranty.
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