Reference for the refrigerant charge of industrial chillers

Reference for the refrigerant charge amount. Generally, the refrigerant of the chiller must be charged or overcharged. When the small industrial chiller device uses the quantitative charger to charge the refrigerant, it is only necessary to pump the refrigerant in the refrigeration device. After the vacuum is completed, close the three-way valve, stop the vacuum pump, remove the joint of the pressure-resistant hose connected to the vacuum pump, and install it on the liquid outlet of the quantitative filler; or remove the pressure-resistant connection with the three-way valve The joint of the hose, connect the pressure-resistant hose connected to the quantitative filler to the joint of the valve. Open the outlet valve to exhaust the air in the hose, and then tighten the joint of the hose to check for leaks.

When the industrial chiller is filled with refrigerant, s* first observe the reading of the pressure gauge on the charger, turn the scale sleeve, and find the quantitative filling corresponding to the pressure gauge on the sleeve Line, note down the z* initial liquid level scale of the refrigerant in the glass tube. Then open the three-way valve, the refrigerant enters the refrigeration system through the hose, and the refrigerant level in the glass tube begins to drop. When the specified filling volume is reached, the liquid outlet and the tee on the filling device are closed, and the filling work is over.

When the industrial chiller uses the evacuated charging machine to charge the refrigerant, it is only necessary to close the evacuation shut-off valve on the evacuated charging machine after the evacuation is completed, and open the charging shut-off valve to send the refrigerant to the refrigeration system Charge refrigerant.

1, usually 1 cold ton ffice:smarttags/1kg, but it depends on whether the heat exchange area of u200bu200bthe system design is too large or too small.

2, the general chiller condenser (air-cooled) has a supercooled liquid storage section, and the refrigeration capacity (2500W) of one horse is added with 0.9kg of fluorine. If the condenser has no liquid storage section, the amount of fluorine added is 0.5kg/hp refrigeration capacity. Strictly speaking, it is normal for air conditioners with subcooled liquid storage section (such as TRANE) to add fluoride to 56%-120%. You can add 0.5kg/hp cold first and add it in an appropriate amount. 3. In this case, run the unit, use an ammeter to measure the current through the compressor to see if it is equivalent to the rated current. If it is less than the rated current, it means that the amount of refrigerant is not enough, if it exceeds the rated current, the amount of refrigerant is too much, and it must be properly discharged. Refrigerant.

4, water-cooled machine 1RT*0.7-0.85, air-cooled machine 1RT*1.2-1.4 or so, generally for R22 refrigerant, one horse needs 850g refrigerant.

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