1 check whether the cold air power source is separately connected from the distribution box, whether the voltage and frequency are consistent, must not be connected to other electrical equipment on the cold air power source;

2. Check whether the cold air power source line is connected clearly, and whether the air switch or leakage protection switch works normally;

3. Check whether the power connection between the power supply and the main control box of the air cooler is loose, and each phase line should be correctly connected to the interface of the air conditioner;

4. Check whether the water source is normal and whether it is blocked;

5 check whether the water level in the water plate is normal (normal water level 8O-100 scale), floating ball valve or solenoid valve is not blocked, whether the work is not sensitive;

6. Check whether the water inlet distributor and water inlet hose joint is loose and aging;

7. Check whether the air duct is correctly buckled on the rack to prevent the air blade from sticking to the wall of the air duct due to the warping of the air duct;

8 check whether the drainage valve is sensitive, whether the sealing rubber ring is aging or blocked by dirt;

9. Check whether the water pump rotating shaft is corroded and stuck;

10 Check whether the water inlet hose is aged or cracked.

11 Clean the debris from the fan chassis. If the air cooler is equipped with a floating ball valve, check whether the filter screen with a beveled profile is installed on the floating ball valve side;

12 Check whether the air cooler water pump and fan are in normal operation; For air conditioners with electric tuyere, check whether the motor of electric tuyere works normally.

1. When cleaning the wet curtain air cooler, completely disconnect the main power supply of the air cooler, and hang the "Maintenance, do not use" brand on the control switch to avoid the danger caused by the wrong startup.

2. When cleaning the wet curtain cold air machine, be careful to remove the wet curtain. When washing, the water pressure should not be too high to prevent the wet curtain from being damaged, and no corrosive chemicals should be put to avoid the corrosion of the wet curtain.

3. It is necessary to fasten the safety belt when working at height to ensure safety.

The operation principle of the air cooler and the air cooled chiller is similar. They both make use of the characteristics of heat absorption and heat release process required by the state transformation of the refrigerant, and achieve the purpose of refrigeration and cold air straight out through heat transfer.

The cooling fan is mainly composed of refrigeration system, air supply system and control system. Its working principle can be summarized as follows: after the operation of the equipment, the fan is started, and the refrigerant absorbs the heat energy of the air and vaporizes in the evaporator. The compressor continuously extracts the vaporized refrigerant from the evaporator and compresses it into high temperature and high pressure steam. The refrigerant is sent into the condenser in the form of steam for heat exchange with air, and condenses into liquid refrigerant after heat release. After reducing the pressure through the throttle mechanism, it enters the evaporator, again absorbs heat and vaporizes, absorbing the heat of the wind blown by the fan, and so repeatedly circulates, making the equipment continuously provide cold air.

1. Clean the air cooler sink. Open the drainage valve and wash it with tap water. If dust or debris precipitation is more, it can be taken out first, and then washed with tap water.

2. Clean evaporation filter, namely wet curtain. Remove the wet curtain and wash it with tap water. If there are substances that are difficult to wash on the wet curtain, it can be permeated with tap water first, and then spray the air conditioning cleaning liquid on the wet curtain. After the cleaning liquid penetrates the wet curtain completely for 5 minutes, then wash it with tap water until the impurities on the wet curtain are removed.

3. Maintenance of wet curtain cooling fan when it is not used for a long time. First close the air cooler water valve, remove the wet curtain, drain the water in the water tank together, and thoroughly clean the air cooler water tank. After cleaning, install the wet curtain, open the air cooler and supply air for 5 to 8 minutes. After the wet curtain is blown dry, close the main power supply of the air cooler.

4. Odor removal. After the wet curtain cold fan is used for a period of time, if the cold fan is not cleaned and maintained, the cold air sent by the cold fan may have peculiar smell. At this moment, just clean the cold curtain and the sink of the cold fan according to the process of the second point above. If there is still a peculiar smell, you can add some chlorine-containing disinfectant to the air cooler sink when the machine is turned on, so that the disinfectant can fully penetrate the wet curtain and all corners of the air cooler, so that the air cooler can be disinfected several times.