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Hot-air bypass function: the compressor continues working when the process
water is cooled down to the required temperature, then the hot-air bypass valve
opens as the temperature drops to its set value. A part of the refrigerant from
the compressor passes through the bypass valve and then reach the
evaporator, balancing out part of the machine refrigerating capacity and then
goes back to the compressor without passing through the condenser. With the
help of hot-air bypass valve, the system can stay in an balanced condition and
meanwhile can keep the control accuracy at ±1℃ .
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