System and method to integrate an exhaust fan with an automated kitchen hood and flue cleaning system

A system, comprising:

• an automated kitchen exhaust cleaning system comprising a first conduit and a first nozzle configured to spray detergent or water on a kitchen exhaust flue;
• an exhaust fan configured to be mounted on an outside surface of a building and to couple to the kitchen exhaust flue, wherein the exhaust fan includes a fan surrounded by a housing and operated by a motor, wherein the exhaust fan is configured to pull exhaust up through the kitchen exhaust flue and to disperse externally via the fan operated by the motor, wherein the exhaust fan includes a second nozzle connected to a second conduit, wherein the second conduit is configured to be connected to the first conduit, wherein, in response to receipt of detergent or water from the automated kitchen exhaust cleaning system during an exhaust fan cleaning operation, the second nozzle is configured to spray the detergent or water onto fan blades of the fan;
• and
• wherein the exhaust fan includes a mechanical cleaning system comprising a brush configured to scrub at least one of a wall of the housing or the fan blades of the exhaust fan during the exhaust fan cleaning operation, wherein the exhaust fan cleaning operation is initiated in response to data from an exhaust fan sensor indicating the exhaust fan exceeds a contamination threshold, wherein the data from the exhaust fan sensor includes at least one of torque or vibration data.