Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Automatic Electrical Air Flow, Water Flow and Water Level Sensing Controls
standard by Underwriters Laboratories, 11/06/2019
Standard for Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Automatic Electrical Burner Control Systems
standard by Underwriters Laboratories, 01/30/2014