Insufficient refrigerant is a serious harm to the refrigeration system

For the chiller refrigerant.com/hfc-refrigerant' target='_blank'>refrigeration system, as long as it is installed correctly and there is no leakage at the pipe connection, the system can operate effectively for a long time. Do not add refrigerant. But if there is a refrigerant leak in the chiller, we should first try to find the leak, then solve the leak, and finally replenish the refrigerant. So how should we judge that the refrigerant is insufficiently charged? What is the harm to the chiller refrigeration system when it is insufficient?

1. Reasons for insufficient refrigerant 　　

1. The newly installed chiller is not charged with refrigerant as required.　　

2. The air tightness of the system is not good, causing refrigerant leakage.　　

3. Improper operation and maintenance, causing refrigerant leakage, etc.

Second, the impact of insufficient refrigerant charge on the chiller

1. If the compressor suction pressure and discharge pressure Will be lower than the normal value, then you need to check whether it is due to insufficient refrigerant charge.　　

2. In the case of insufficient refrigerant charge, the compressor will run under no rated load, resulting in light load or even idling of the chiller. At this time, the current is lower than the rated current.　　

3. Insufficient refrigerant charge will also reduce the evaporation capacity in the evaporator, so that the cooling capacity will decrease and the cooling effect of the unit will be poor, and the room temperature or storage temperature will drop slowly or not.　　

4. If you see that the thermal expansion valve of the chiller is not frosting, it is rarely frosted. When there is no condensation, little or no condensate in the air conditioner, it may also be caused by insufficient refrigerant charge.

5. If you see that the evaporator of the chiller unit has little or no frost, or no condensation, little or no condensate during air-conditioning conditions, the same reason is that the refrigerant is insufficiently charged .

When there is insufficient refrigerant in the chiller, we should conduct a strict and careful inspection of the entire refrigeration system to determine the specific cause or the location of the leakage, so as to eliminate the fault. And replenish the refrigerant in accordance with the regulations to restore the normal operation of the chiller.

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