Precautions when repairing and repairing the car air conditioner

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The daily maintenance of the car air conditioner is mainly to pay attention to the following points:

1. Check whether the compressor belt is in good condition.

2. Replace the air conditioner filter regularly.

It is recommended to replace the air conditioning filter once every 10,000 kilometers, if it is not replaced for a long time, it will affect the refrigeration effect of the air conditioner.

3. Clean the water tank and condenser.

4.It is recommended to replace the air conditioning filter once every 10,000 kilometers, if it is not replaced for a long time, it will affect the cooling efficiency of the air conditioner.

1.Different grades of refrigerated oil can not be mixed and used, 2When cleaning the air conditioning system pipelines, compressed air should not be used, but nitrogen or refrigerant gas.

3. The larger the throttle opening of the automobile engine, the smaller the vacuum degree of the hole flap generated by the intake manifold.

Three suggestions: Suggestion 1: Do not start empty immediately after the car starts.

After getting on the car, first roll down the glass windows on both sides, adjust to the outer circulation, and then adjust the cooling degree of the empty to the maximum, first force the hot air out, about 3 minutes later, the hot air in the car gradually dissipates, and then roll up the window, change the outer circulation to the inner circulation, and adjust the empty temperature to moderate, so that the empty Suggestion 2: The lower the temperature in the car, the better. Just keep the temperature inside the car 6-7 degrees Celsius away from the outside temperature.

Suggestion 3: Turn off the empty switch before turning off the engine, preferably 6 to 7 minutes before preparing to stop. Eight things to keep in mind:

Note 1: It is very important to clean in a timely manner. If the air conditioning is not used for a long time, the filter will be covered with a thick layer of "dirty laundry" The correct way is to replace the filter cartridge once a year in the spring, and the condenser should be cleaned regularly.

Note: Control the direction of the air outlet Remember the principle that cold air sinks and hot air rises. Adjustment principle of automobile air outlet:

Turn the air outlet upwards when the air conditioner is turned on, and turn the air outlet downward when the heating is turned on. Note caution: Don't drive it for too long.

Long-term use of air conditioning will cause the condenser pressure to be too high, causing losses to the refrigeration system. Note: Turn on the high air volume appropriately.

A lot of dust is sucked in when used empty. Blowing a strong wind on a regular basis can blow out the floating dust on the inner surface of the air duct. The simplest method is the most effective.

Note: Low-speed driving shut-off adjustment When encountering traffic jams or low speeds, try to turn off the air switch, and do not make the engine run at a higher speed because of the supply of cold air, which will shorten the service life of the engine and the air switch compressor. Note:

Keep in mind the switching process. When starting, turn on the fan switch first, and then turn on the compressor switch (a c); Turn off the compressor switch (air conditioner) before turning off the fan switch. In this way, the air-adjustable compressor can better dissipate heat and reduce the air-adjustable odor.

Note: To master the internal and external circulation. Open the door first, and the hot air circulating from the outside is released.

When the temperature drops, the cooling effect is better in the internal circulation mode. However, if the internal circulation time is long, there will be air pollution in the car. Don't forget to switch between the inner and outer cycle modes at regular intervals.

Note: Refrigerant is applied to the regular army. When the refrigerant is insufficient, the rate of air conditioner will decrease, and the owner must go to a regular maintenance shop to add refrigerant.

To judge whether the refrigerant is filled, the owner can observe the filling port, and then add 50-100 grams of refrigerant after the bubbles are generated. However, blind filling will lead to excessive refrigerant in the air conditioning pipeline, and the pressure of the system pipeline will increase accordingly, which will also lead to poor heat dissipation of the system, and the air conditioning system will not cool down. How is JAC Yuebin?

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1. Slow down the air conditioner for a long time under the scorching sun.

In summer, the car parked under the scorching sun, the temperature in the car may be as high as sixty or seventy degrees Celsius, at this time, the doors and windows should be opened first, you can use a fan for ventilation first, wait for two or three minutes after the hot air is discharged before sitting in and start the car, and do not rush to close the window, first open the air conditioning external circulation, and then close the window when the temperature inside and outside the compartment is similar, and then close the window to enable the internal circulation. This not only reduces the load of the air conditioner, but also allows the air conditioner compressor to quickly enter the working state.

2. Don't open it for too long.

We know you're "not short of money", but we encourage you to turn off the air conditioning appropriately while driving. Using an air conditioner for a long time can cause excessive condenser pressure, which can cause wear and tear on the refrigeration system. So, if the temperature in the car is already comfortable for you, you might as well turn off the air conditioner for a while and let it rest for a while.

3. Be cautious in air conditioning modification.

It is not advisable to modify the car's air conditioner, because the original air conditioner is matched with the car's engine, and if it is modified at will, it will affect the performance of the car.

4. The temperature of the air conditioner should not be too low.

Don't set the temperature of the air conditioner too low and don't let the wind speed be too small. The temperature difference between the inside and outside of the general compartment of automatic constant temperature air conditioning should not exceed 10. For non-thermostatic air conditioners, you can first set the temperature of the air conditioner to the lowest and turn the wind speed to the maximum, and then turn the temperature up a little when it feels cold, and lower the wind speed by one gear.

5. Properly turn on the large air volume.

Generally, the higher the air conditioner is turned on, the louder the noise will be. Many car owners will always use a small windshield because they are afraid of noise, but this is not good for air conditioning in the long run! Because the air conditioner will suck in a lot of dust when it is used, the easiest way is the most effective way to blow out the floating dust on the inner surface of the air duct by turning on the air duct regularly.

6. Control the direction of the air outlet.

When refrigerating, the wind direction of the air conditioner is best to blow upward, because the cold air will sink downward, the wind direction gear is best to choose the blowing surface block, adjust the air outlet upward effect is the best, do not choose the windshield of the gear, because the temperature of the windshield is very high, will offset a large part of the refrigeration effect.

Air conditioning uses refrigeration system in summer, heating system in winter, heating system is regulated by engine water temperature, refrigeration system needs to be maintained in the place where there is a condenser part, summer high temperature season often check whether the condenser is dirty, too dirty to affect refrigeration, check whether the air conditioning filter element is dirty every other year, one is the internal and external circulation air inlet has a filter element, often replaced, there is an air filter in the car next to the evaporation box, replaced once a year, maintenance needs to professional maintenance air conditioning maintenance, Because the refrigeration system works in a high-pressure vacuum state, professional tools are required, and the refrigerant is a chemical product with a certain toxicity.