The ULN WT8860A Water Heater Control System is designed for power damper water heater applications. The WT8860 series is the Water Heater Control for trade use to replace WV8860 valves used in Bradford White Water Heaters. It is designed for use in Standing Pilot applications using an immersion well for water temperature sensing. An included integrated NTC temperature sensor reads water temperature within the appliance up to 221 F [105 C].