41(45)
6.1 Filling the Refrigerant
1) Unscrew the cover of the liquid thimble valve, and connect the air pipe of
the vacuum pump to the liquid thimble valve to vacuumize, which takes
about 1 to 2 hours.
Picture 6-1：Fill in the Refrigerant (1)
2) After vacuumizing, connect the air pipe of the refrigerant tank to the liquid
thimble valve, and add the refrigerant to the return air pipe. Monitor the
weight change of the electronic scale, and stop filling the refrigerant when
it reaches the rated filling weight.
When the machine is powered on, the display pressure of the
high-pressure gauge is about: 13~15bar; and the display pressure of the
low-pressure gauge is about: 3～5bar(Note: the ambient temperature is
30 ℃, and the cooling water temperature is about 20 ℃).
Picture 6-2：Fill in the Refrigerant (2)
Table 6-1：SIC-W Series Filling Quantity
Model Refrigerant (kg) Model Refrigerant (kg)
SIC-3W 1.5 SIC-20W 10
SIC-5W 2.5 SIC-25W 14
SIC-8W 3.8 SIC-30W 17
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