The long summer,Car Air ConditionerThe frequency of use may not be less than that of the radio, but will you really use the air conditioner correctly?How to use it scientifically, efficiently and safelycarAir conditioners are actually quite knowledgeable. Let Manager Fu of Hangzhou Yiping Automobile Service Co., Ltd. (a member of Zaobao Che Youhui) tell riders some tips on using air-conditioning in summer.
1. How to deal with poor cooling effect
In most cases, incorrect use is the biggest culprit.
◆Start the internal circulation to improve the refrigeration efficiency
Although the long-term use of the internal circulation function of air conditioners is not advocated, if you want to achieve the fastest and most effective refrigeration, the internal circulation must not be ignored. Another function of the internal circulation is to prevent the entry of unclean air. If the car is driving on a dusty road, the internal circulation can prevent the entry of dust outside the car.
◆Exhaust the hot air from the cabin before turning on the air conditioner
When the windows are closed, the air conditioning system is most efficient. However, if the car is parked for a long time under the scorching sun and the car is very hot, open the windows after turning on the air conditioner, and then close it after the hot air in the car is exhausted. In this way, the cooling speed of the air conditioner will be greatly accelerated.
◆Select the wind speed gear
In the normal operation of the car, in order to prevent excessive frost on the evaporator and affect the operation of the air conditioning system, the air supply speed and temperature control of the air conditioner should not be kept to the lowest for a long time at the same time.But when the vehicle speed is lower than 25km/h, the wind speed should beswitchPut it in a low-speed gear to avoid insufficient power generation and insufficient air-conditioning.
◆Choose the right direction of the air outlet
When refrigerating, the wind direction of the air conditioner is best to blow upwards, because the cold air will sink downwards, and the wind direction block is best to choose the blowing side block. Adjusting the air outlet upward has the best effect. Don't choose the one with the windshield, because the temperature of the windshield glass is very high, which will offset a large part of the cooling effect.
2. How to maintain car air conditioner
Due to the complex working environment, car air conditioners need more "care" than household air conditioners.
◆Checkcompressorbelt
If the belt surface is bright on the contact side of the pulley groove, and there is a "squeaking" noise when starting the air conditioner, it means that the belt is slipping seriously, and the belt and pulley should be replaced; if the belt is too loose, adjust it, otherwise it will cause poor cooling of the air conditioning system.
Check whether there are oil stains on the hose joints of the air conditioning system. If any leakage is found, go to the maintenance department to solve it in time.
◆CleanCondenser
With water pipe facingCondenserFlush, because the cleaning of the surface of the car condenser facilitates the dissipation of heat to the outside world. Regularly cleaning the surface of the condenser can greatly improve the cooling effect of the air conditioning system.
◆Check the height of the refrigerant liquid level
Using the observation window of the dryer, you can check the refrigerant liquid level. The glass peephole is usually installed on the cover of the dryer to run the engine and air conditioning system, and observe the flow of refrigerant through the glass peephole. If the air conditioner works normally, you can see from the peephole that the clear refrigerant is constantly flowing, and occasionally small bubbles are entrained at high temperatures, and small bubbles can be seen when the air conditioning system is turned off.
◆Enough refrigerant
It can be measured by sensing the temperature difference between the inlet and outlet pipes of the dryer, or can be detected by a manifold pressure gauge. Of course, these tasks need to rely on the repair shop.
(Source: Today Morning Post)
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