In the face of hot weather, air conditioning, WiFi, watermelon, what is your first choice? Of course it's the air conditioner! Having said that, how do we reasonably choose the air-conditioning speed gear?
Air conditioning switch is particular
In hot weather, turn off A/C a few minutes before reaching your destination, and then increase the air volume a little bit to let natural wind blow through the pipe more. The temperature in the air-conditioning duct is raised back, eliminating the temperature difference with the outside, so as to keep the air-conditioning system relatively dry and avoid the growth of mold. In addition, the air conditioner should be turned on after the vehicle is started for two or three minutes and the engine is lubricated.
Randomly dialing the outlet has an impact
Due to the physical principles of hot air rising and cold air sinking, it is recommended that the driver face the air outlet properly when turning on the air conditioner, and face the air outlet properly when turning on the heater.
Air conditioning use time is also elegant
Long-term use of truck air conditioners will increase the pressure of the condenser, thereby greatly increasing the loss of the refrigeration system. Therefore, the air conditioner should not be used for too long. When the temperature in the car reaches a relatively comfortable temperature, the air conditioner can be turned off for a while, and then turned on again after a while.
Need to switch between inner and outer circulation
It is recommended that car owners open the windows when using the air conditioner, then turn on the outer circulation to replace the sultry air, and finally switch to the inner circulation. After this is done, turn on the air conditioner. The interior of the car will cool quickly!
Air volume control
In the process of using DC air conditioners, certain dust is often sucked in, thereby forming dirt. Over time, mildew will occur. If a small amount of air is used for a long time, it is difficult to blow out the dirt in the air conditioner. Will affect physical health. Therefore, at regular intervals, the air conditioner needs to be turned on to the maximum gear, and the accumulation of dust can be effectively prevented in about 10 minutes.
Maintenance and precautions of air conditioning system
(1) Inspection and maintenance of the compressor. It is generally carried out once every three years, mainly to check whether the inlet and exhaust pressure meet the requirements, whether the fasteners are loose, and whether there is air leakage.
(2) Inspection and maintenance of the condenser and its cooling fan. It is generally carried out once a year. The main maintenance content is to thoroughly clean or clean the impurities and dust on the surface of the condenser, repair the heat sink of the condenser with a flat paddle, carefully check whether there is any abnormality on the condenser surface, and check the refrigerant with a leak detector. No leakage. Such as the anti-rust paint peeling off.
(3) Inspection and maintenance of the evaporator. Generally, leak detection should be carried out once a year with a leak detector, and the evaporator cover should be removed every 2 to 3 years, and the inside of the evaporator should be cleaned to remove debris in the air supply channel.
(4) Replacement of storage dryer. Under normal use of automobile air conditioners, a liquid storage dryer is generally replaced every 3 years. If the system enters moisture due to improper use, it should be replaced in time.
(5) The maintenance of the expansion valve is generally to check whether its operation is normal and whether the opening is appropriate every 1 to 2 years. If it is not normal, it should be replaced or adjusted appropriately.
(6) Maintenance of refrigeration system pipelines: ①Pipe joints: check once a year, and check the sealing condition with a leak detector. ② Refrigeration system connecting pipe: check whether it collides with other parts, check whether the hose is aging or cracked, and generally replace the hose every 3 to 5 years.
(7) Inspection and maintenance of driving mechanism:
①V-belt: Check the tension and wear condition every 100h of use, and replace it with a new one after three years of use.
② Tensioner and bearing: check once a year and add lubricating oil.
(8) Refrigerating oil replacement. Generally check or replace every two years or so. When there is a large leak in the pipeline, the refrigerant should be checked or refilled in time. If there is a phenomenon of replacing parts during the use of the system, the remaining amount of refrigerating oil should be checked and the loss should be made up for the total amount of 230±10ml.
(9) Inspection and replacement of safety devices. High and low pressure switches and other safety devices related to whether the air conditioning system can work safely and reliably should generally be inspected once a year and replaced every five years.
