Shini SIC-10A, Руководство пользователя

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refrigerant from the condenser flows through the fluid reservoir r4 to the filter 5
after drying, which finally reaches the expansion valve 8 via the liquid pipe
solenoid valve 6 and refrigerant indicator 7 by drying and impurity filtering. In the
F-G process, the temperature of high pressure liquid refrigerant decreases after
thermal expansion valve throttling and depressurizing. In the G-A process, the low
pressure and low temperature refrigerant exchanges heat with the chilled water
through the evaporator 9, and the temperature of cooling the chilled water reach
the set value; The low temperature gas refrigerant from the evaporator returns to
the compressor, which circulates in this way.
Hot-gas bypass function: when the temperature of chilled water reaches the set
temperature, the compressor continues to work. When the temperature drops to
the set temperature of the hot gas bypass valve, the hot gas bypass valve opens.
Part of the compressed high-temperature and high-pressure refrigerant directly
reaches the evaporator through the hot gas bypass valve, which neutralizes some
refrigerants and returns the compressor (without passing the condenser). The
refrigeration system achieves the balanced load and cooling capacity through the
hot-gas bypass valve, so that the compressor can work all the time while keeping
chilled water temperature accuracy at
±
1
℃ .