Reference for the refrigerant charging amount of Dongguan water chiller. Generally, the refrigerant of Dongguan water chiller cannot be charged less or more. When using a quantitative charger to charge refrigerant for a small Dongguan water chiller industrial water chiller device, it is only necessary to close the three-way valve after the refrigeration device has been vacuumed, stop the vacuum pump, remove the connector of the pressure resistant rubber hose connected to the vacuum pump, and install it in the outlet chamber of the quantitative charger; Alternatively, the connector of the pressure resistant hose connected to the three-way valve can be removed, and the pressure resistant hose connecting the quantitative injector can be connected to the connector of the valve. Open the outlet valve to exhaust the air from the rubber hose, and then tighten the connector of the rubber hose to check for leaks.
When filling refrigerant with refrigerant from Dongguan water chiller and industrial water chiller, first observe the reading of the pressure gauge on the charger, rotate the scale sleeve, find the quantitative filling line corresponding to the pressure gauge on the sleeve, and record the initial liquid level scale of the refrigerant in the glass tube. Then, open the three-way valve, and the refrigerant enters the refrigeration system through the rubber tube. The refrigerant level in the glass tube begins to drop. When the specified filling amount is reached, close the liquid outlet and tee joints on the filler, and the filling work is completed.
Dongguan water chillers and industrial water chillers, when using an evacuation charging machine to charge refrigerant, simply close the evacuation stop valve on the evacuation charging machine and open the filling stop valve after the evacuation is completed, and then charge the refrigerant into the refrigeration system.
1. Usually, it is 1 cold ton of office: smarttags/1kg, but it depends on whether the designed heat exchange area of the system is too large or too small.
2. Generally, if the condenser of a water chiller is air-cooled, and there is a subcooled liquid storage section, the refrigeration capacity of a horse (2500W) is 0.9 kg of fluorine. If the condenser does not have a liquid storage section, the amount of fluoride added is 0.5kg/hp of refrigeration capacity. Strictly speaking, it is normal for air conditioners with subcooled liquid storage sections (such as TRANE) to add 56% to 120% of fluorine. You can first add 0.5 kg/piece of refrigerant, and then add it in an appropriate amount.
3. In this case, run the unit and measure the current flowing through the compressor with an ammeter to see if it is equivalent to the rated current. If it is less than the rated current, it indicates that the refrigeration dose is insufficient. If it exceeds the rated current, it indicates that the refrigerant amount is excessive. Discharge a certain amount of refrigerant appropriately.
4. Water cooler 1RT * 0.7-0.85, air cooler 1RT * 1.2-1.4, or so. Generally, for R22 refrigerant, 850g of refrigerant is required for one horse.
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