Field Controls Fan-In-A-Drum 900,000 BTU CAS-6

Field controls fan-in-a-drum 900,000 btu cas-6 the fan-in-a-drum is a commercial product designed to deliver combustion air into the mechanical room, boiler room or furnace location to overcome a confined space or inadequate air supply. dual volt unit for oil or gas applications. when the thermostat calls for heat, the fan-in-a-drum engages and begins drawing air into the structure. when air flow is established, the pressure switch closes. the cas sends a signal to the appliance, allowing the burner to fire. the fan-in-a-drum diffuses the outside air into the room near the burner to ensure adequate air for efficient combustion.made in the usa.