Lochinvar & A.O. Smith 100108422 Thermostat 320074-702 We recommend verifying the torque

We recommend verifying the torque on all terminal screws during every preventative maintenance cycle

Manual Reset Capability: Ensures the system remains locked out after a low-water event until a technician can verify boiler safety

the housing and wheel are usually sold separately unless specified in a kit

Industrial Grade Build: Designed with high-quality bearings and insulation class standards to withstand 1000 RPM demand in condenser fan or blower applications

ensuring the blower assembly maintains sufficient airflow while preventing thermal stress on the heat exchanger

Lochinvar & A.O. Smith 100108422 Thermostat 320074-702 We recommend verifying the torqueThe Lochinvar & A. O. Smith 100108422 Thermostat is a critical lower electric water heater thermostat designed for precise temperature regulation in residential applications. As a genuine OEM replacement part, this WH9 model features a dual pole connection compatible with voltages ranging from 208V to 480V. It is engineered to maintain thermal stability by managing the lower heating element, ensuring optimal energy efficiency and consistent recovery