The operating condition parameters of the cooling system of the industrial chiller are very good. The main purpose of the refrigeration system is to adjust the parameters to make it run in the most reasonable conditions. Especially for those large screw type chiller, debugging is not good, will directly affect the cooling effect.
      (1) refrigerant charging. At present, the refrigeration unit in the factory are generally in accordance with the provisions of the refrigerant filling, on-site installation, inspection if no accident damage, you can directly open the valve (you should read the instructions in transit units on the valve in the closed state general commissioning). If it is found that the refrigerant has been leaking end or insufficient, should first find the leaks and eliminate the leakage phenomenon, and then press the cold water machine instructions, with the stipulated quantity of refrigerant refrigerant. Attention should meet the technical requirements.
      (2) some screw chillers need to be charged with refrigerant on the user's site, and the refrigerant charge and refrigerant grade must be in accordance with the regulations. Insufficient refrigerant charge. Too much refrigerant charge, will not only increase the cost, but also on the operation of industrial water chiller energy consumption may adversely affect.
      (3) sufficient refrigerant should be prepared in advance before the industrial chillers are charged with refrigerant. When charging, can be directly from the dedicated filling valve filling. Because the system is in a vacuum state, and the refrigerant cylinder pressure, when the valve is opened (should first use of refrigerant blown connecting pipe in the air, in order to avoid the air into the unit, the unit performance effect), the refrigerant from the cylinder rapidly flow system, charging is completed, should be the first liquid filling valve is closed. Then remove the connecting pipe.
      (4) refrigeration system commissioning. After the completion of the refrigerant charge (if you need to charge refrigerant), you can load commissioning. In recent years, screw chillers in terms of performance and electrical control have made considerable progress, many screw chillers can do simulation test of the main action of electric control system in the official before the start, the host unit without electricity, electricity control system, and then through the machine electric control system of the group internal setting unit to detect whether the normal operation, assembly. If there is any problem with the electronic control system, it can be solved in time. Finally, through the host power supply for debugging.
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