How to perform hot cross cleaning and maintenance of central air conditioning

General use of two years of maintenance once, available non-flammable and non-corrosive gas blowing off the heat exchanger on the accumulation of dust, special harsh environment needs to increase the frequency of cleaning. Cleaning water temperature should not be higher than 40 degrees Celsius, and can not use gasoline and other corrosive, strong solvent cleaning. Check the central air conditioner how to maintain the power supply line, piping insulation sleeve, strapping whether there is broken, loose and other phenomena.