Daily maintenance method of precision air conditioner for computer room

Daily maintenance method of precision air conditioner for computer room

With the development of science and technology, the precision air conditioners in the computer room are gradually upgraded, and the cost is getting higher and higher. Therefore, it is more necessary to increase maintenance efforts. Today, experts from Henan Ziqing Electrical Equipment Co., Ltd., a manufacturer of computer room environment monitoring, will briefly introduce the daily maintenance of special precision air conditioners for computer rooms.

　　1. Maintenance of control system

　　For the maintenance personnel of the air-conditioning system, the first step is to see if the air-conditioning system is operating normally, so we must first do the following tasks.

　　1) Check whether the functions and parameters of the air-conditioning system are normal from the display screen of the air-conditioning system;

　　 2) If there is an alarm, check the alarm record and analyze the cause of the alarm;

　　3) Check whether the working status of the temperature and humidity sensors is normal;

4) Be aware of the operating parameters of the compressor and humidifier, especially in the first inspection every morning, compare the operating parameters of the compressor the night before with the parameters of the same period before. To see if there are major changes, according to the changes in parameters, it can be judged whether there are major changes in the operating conditions of the computer equipment in the computer room.

　　 in order to rationally deploy the operating frequency of the air conditioning system and adjust the operating parameters of the air conditioning system. Of course, some older air-conditioning systems are still unable to read these parameters, which requires more observation and recording by the staff on duty at night.

　　2. Tour inspection and maintenance of compressor

　　1) Listening—By listening to the sound, you can more accurately judge the operation of the compressor. Because when the compressor is running, its sound should be uniform and rhythmic. If its sound loses its rhythm, and uneven noise appears, it means that the compressor's internal parts or the working conditions of the cylinder have changed abnormally.

　　2) Touching—The method of touching by hand can know the degree of heat generation and can roughly judge whether the compressor is running under the condition of exceeding the specified pressure and temperature.

　　3) Look-mainly observe the liquid level of the refrigerant from the sight glass to see if there is a lack of refrigerant.

　　4) Quantity—mainly to measure the current and suction and discharge pressure of the compressor when it is running, so as to be able to judge the compressor’s operating status more accurately. Of course, for the compressor, we also need to check other accessories such as high and low pressure protection switches, filter driers and so on.

　　3. Tour inspection and maintenance of condenser

1) The maintenance of the professional air conditioner condenser is equivalent to the maintenance of the outdoor unit of the air conditioner. Therefore, we first need to check the fixing condition of the condenser to see if there are signs of loosening of the fixing parts of the condenser, so as to avoid causing damage to the refrigerant pipeline and outdoor unit damage.

2) Check whether the refrigerant pipeline is damaged (of course, it can be judged whether the refrigerant pipeline is damaged from the working condition of the compressor and some other performance parameters), and check the insulation condition of the refrigerant pipeline, especially in winter in the north. A more important job, if the ambient temperature is too low and the insulation of the refrigerant pipeline is not good, it will have a certain impact on the normal operation of the air conditioning system.

　　3) Check the operation of the fan: mainly check the working conditions of the fan's bearings, base, motor, etc., whether there is abnormal vibration when the fan is running, and whether the fan of the fan is also on the same plane when it is rotating.