In years back, refrigeration equipment has been mass produced and widely used, it has achieved so much to have changed man over the years. People living in very cold region where snow fall especially at winter always noticed that their food or met are always frozen if kept outside and still fresh if allowed to melt. But people living close to the equator with high temperature and humidity would have their foodstuffs dry quickly and this made their food to decay more readily.

Refrigeration contributes to the raising of standard of living of different races. Although refrigeration is primarily an application of thermodynamics, but advances have made refrigeration in recent years to grow into so many phrase where we need technicians, craft persons, engineers, scientists, and others from phases of engineering to pool skills and knowledge in the design, manufacturer and operation of the refrigeration system.

Below are some rules to be observed and cautions to be applied by the user of a refrigerator

Moisture must be prevented from entering the piping system either during charging or during repair work.

Toxic items or corrosion chemical should not be placed in the system.

The condenser must be spaced from the walls to ensure air circulation.

Hot food must be allowed to cool at least at room temperature before being cooled by the system.

The door of the cooling system must be kept closed when in operation to avoid overloading of the compressor

The frost (ice) should not be removed with sharp object

The system should not be positioned close to a heat source as it may affect its operation.

Endeabour to always check for naked-wire to avoid electric shock.

Do not use without a voltage stabilizer

Always use the specified refrigerant for your refrigerator

Always seek the advice of a qualified AC/Refrigeration technician

source: http://xtrimlaughs.com/2016/09/how-to-use-and-maintain-your-refrigerator-inorder-to-last-longer/#more-229

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