This video shows you how to charge the refrigerant for TEYU S&A rack mount chiller RMFL-2000. Remember to work in a well-ventilated area, wear protective gear and avoid smoking. Using a Phillips screwdriver to remove the top metal screws. Locate the refrigerant charging port. Gently turn the charging port outward. Firstly, unscrew the sealing cap of the charging port. Then use the cap to slightly loosen the valve core until the refrigerant is released. Due to the relatively high refrigerant pressure in the copper pipe, do not loosen the valve core completely at a time. After releasing all refrigerant, use a vacuum pump for 60 mins to remove air. Tighten the valve core before vacuuming. Before charging refrigerant, partially unscrew the valve of the refrigerant bottle to purge air from the charging hose. You need to refer to the compressor and model to charge the suitable type and amounts of refrigerant. For more details, you can email to service@teyuchiller.com to consult our af...