A.O. Smith 9004533215 Thermostat Kit SPDT 100109920

The A.O. Smith 9004533215 Thermostat Kit is a model 100109920, Single Pole Double Through HVAC systems thermostat for A.O. Smith water heaters only. This kit comes with a thermostat, a mounting bracket and an installation manual to ensure that replacing or installing the product is easy. It works at a temperature of 120°F to 150°F to control water temperature for increasing the safety and efficiency of heating systems. The SPDT switch configuration enables reliable control because it connects to two circuits for better performance.