Understanding the basic technicality of the air conditioner of the car

A lot of people think that when the air conditioning stops working, it is enough to replace the gas that it solves, but it is not like that. To better understand this story, you need to know a bit how the system works. In order to know more about Air conditioning repairs Geelong, you can always seek help from online. Basically, the air conditioner of your car is composed of five main elements connected by hoses, connectors, couplings and tubes through which the famous R134 gas circulates. What many people do not know is that it is a closed system and divided into two stages the high pressure (200 PSI) and the low pressure (30 PSI). Therefore, if your car is without gas, it is because there is leakage. And it is no use putting the gas without first finding out where it is leaking. If you just repurpose the gas, it will work for a while. If the hole has the diameter of a hair, it will work for a month if the hole is large, it will run for 15 minutes.

The importance of the compressor

The compressor is the first in the circuit and it receives the gas with low pressure (30 PSI) and the delivery with high pressure (250 PSI). The largest leakage rate in the compressor occurs through the main shaft seal near the pulley. Often leakage occurs only when the system is running, so it is important to check the system in both situations stopped and running.

Car air conditioning condenser

Condenser is the part, which looks like a radiator, is installed near the radiator on the front of the car, just to receive the wind, and aims to remove the heat from the gas that has been compressed. For this, it has the help of the famous fan (fan). Note that every time you turn on the air conditioner, you hear the fan running.

The technical aspects of the dryer filter

The dryer filter after passing the condenser and losing heat, part of the gas becomes liquefied and this filter, in addition to removing the impurities, separates the liquid from the gas and sends only the liquid to the next element, which is the expansion valve.

Understanding the function of the expansion valve

Expansion valve is located at the evaporator inlet and this valve decreases in a controlled way the pressure of the liquid it receives. Thereby, the R134, which is in the liquid state, will return to the gaseous state within the evaporator.

The role of the evaporator

The evaporator is located behind the dashboard and resembling a small radiator, it is responsible for the effective removal of heat from the car cabin. With the gas circulating inside it at a temperature of 2ÂșC, it ends up removing the calorie from the environment and increasing the temperature of the gas that returns to the compressor to restart the cycle.

Old cars must be serviced frequently to keep them running

Older vehicles also need to be serviced more often because the connections that have rubber seals tend to dry out and this will let the gas escape. Even with respect to older cars, do not be angry if the repairman condemns more than one piece, because when a leak occurs, the pressure of the system drops. After repairing it you have to keep an eye on the rest of the system the pressure will raise again and. if there is any other fragile site, it is quite possible that it will break and generate a second leakage point. Cleaning, dirty pollen filter (for vehicles that have this filter) or dirty evaporator are also responsible for decreasing the efficiency of air conditioning  these two items give the false impression of lack of gas in the system.

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