For general care, wash with a mild detergent. and water. Rinse and polish with a soft, clean. cloth until dry. Baking soda on a damp cloth. should remove any gummy buildup of soil. To remove burned-on grease from a electrical. appliance, use whiting moistened with amonia or. denatured alcohol.
Fan Clutch What Is It and Whats it Do. The fan clutch is an automatic device that is often used in a vehicleâs cooling system. So, when the engine is cool or even when it is at a normal operating temperature, the fan clutch will partially disengage the engineâs radiator cooling fan (which is mechanically driven).
Duct BlasterÂ® A Duct Blaster is used to directly pressure test the duct system for air leaks, much the same way a plumber pressure tests water pipes for leaks. The Duct Blaster fan is first connected to the duct system at the air handler cabinet, or a return grille. After temporarily sealing all remaining registers and grills, the Duct Blaster fan is turned on to force air through all. Two different types of performance testing systems are used to measure duct leakage; a Duct BlasterÂ® and a Blower Door. holes and cracks in the ductwork. The fan speed is increased until a standard test pressure is achieved in the duct system.