Common Faults Of Air Conditioning Unit

The clean room air conditioning unit is the most important factor in determining whether the clean room is qualified, and it is the most important part of purification engineering. Air conditioning units are composed of various components, and there are also circulating substances such as water, refrigerant, and air during use. If the air conditioning unit malfunctions, there are many factors that can affect it, making troubleshooting difficult. Today, we will introduce common faults in the collection. When problems arise, you can first conduct self inspection.

1.The most common fault encountered is when the fan stops running. When the fan stops running, first check whether it is due to the circuit, whether the wires and connectors are connected properly, and whether the power supply is powered on. After eliminating this reason, check the fan itself again. Whether there are mechanical failures such as damage to fan blades and fan shafts.
2. Check if the inlet temperature of the cooling water is abnormal. Both high and low cooling water temperatures can cause malfunctions in the refrigeration system. When the inlet temperature of the cooling water is too low, it will reduce the condensation pressure, resulting in a decrease in refrigerant flow. When the inlet temperature of the cooling water is too high, increasing the condensation pressure and the working pressure of the compressor will also affect the refrigeration effect.
3. The air conditioning unit has excessive noise. If there is excessive noise, check if the fan blades are damaged.
4. The air conditioning unit is leaking water. When there is a water leakage situation, you can check whether the drainage pipe is blocked and whether the outlet position of the drainage pipe is too high, causing water to flow back.
5. The circulating water pump of the air conditioning unit stops running. Circulating water pump failure can cause an increase in refrigerant outlet temperature and cooling water outlet temperature, which can reduce the cooling effect of the condenser and cause abnormalities in the compressor.
6. Abnormal use of refrigerant. More refrigerant is not always better. Insufficient or excessive refrigerant can cause machine failure. When the refrigerant is insufficient, it is necessary to check whether the valve is leaking or whether the welding is damaged, in order to prevent further leakage after replenishing the refrigerant. Some customers worry about insufficient refrigerant and add it blindly, which leads to decreased heat exchange efficiency, increased system pressure and damage to the compressor.
7. Compressor failure. The compressor is the core component of the air conditioning unit. When the compressor fails, it will cause abnormal suction and exhaust temperature and pressure, resulting in reduced refrigeration efficiency.
8. Filter blockage. During the water circulation process of the air conditioning unit, scale and impurities will be deposited. If they are not cleaned for a long time, the filter will be blocked. Filter blockage will also cause odor, so the filter should be cleaned regularly.

Once the air conditioning unit fails, it must be checked and repaired immediately to avoid affecting the cleanliness and air quality of the clean room and causing serious consequences. All Suzhou Pharma's products have high-quality after-sales service. We can also arrange engineers to provide clean room turnkey project installation guidance, which you can use directly without wasting time.