AIR CONDITIONING AND COOLING UNIT

AIR CONDITIONING AND COOLING UNIT



AIR CONDITIONING



Consider air conditioning and cooling as unit
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AIR CONDITIONING

Although the air conditioning system and the engine cooling system are two separate systems, they influence one another.  Air conditioning system operation places additional load onto the engine cooling system and the coolant temperature rises.
The additives contained in the coolant do not only protect against frost, but also against engine overheating. The proper coolant composition increases the boiling point of the medium to above 120 °C. An enormous performance reserve. This is particularly important in the summer, when air conditioning system and cooling system are heavily burdened by ambient temperatures and long trips. The best approach is to check the coolant during air conditioning service as well.
 
AIR CONDITIONING CIRCUIT:
AIR CONDITIONING CIRCUIT
1- Condenser
2-Compressor
3-Filter dryer
4-Evaporator
5-Interior fan

How the air conditioning system with expansion valve works

For controlling the climate in the vehicle interior,   refrigerant circuit as well as coolant circuit are required. A mixture of cold and warm air allows the generation of the desired climate conditions - completely independently from outer conditions. As a result, the air conditioning system
becomes an important factor for safety and driving comfort. The individual components of the refrigerant circuit are connected by tubes and/or aluminium pipes and thus form a closed system. Refrigerant and refrigerant oil circulate in the system, driven by the compressor. The circuit has two sides:
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*    The section between the compressor and the expansion valve is the high pressure side (yellow/red).
*    The section between the expansion valve and the compressor is the low pressure side (blue).
The gaseous refrigerant is compressed by the compressor (thereby significantly increasing its temperature) and pressed under high pressure through the condenser. This removes heat from refrigerant - it condensates and changes its state from gas to liquid.

The filter dryer, the next unit, removes contaminants and air  from the liquid refrigerant as well as humidity. This ensures system effectiveness and protects the components from damage caused by contaminants.

                                             abo bahaa eddine

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