Shini SIC-A-R2, Operation Manual

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2.2.5 High and Low Pressure Switch
1) The high and low pressure switch are used to control the working pressure of
the compressor suction port and outlet port.
2) The high pressure of switch is 40 bar, and the low pressure of switch is 5 bar.
3) Give an alarm when the pressure of the compressor outlet port is higher than
40 bar or the pressure of the compressor suction port is lower than 5 bar.
2.2.6 Hot Air Bypass Valve
Picture 2-8: Hot Air Bypass Valve
1) Hot air by-pass valve is used to bypass the cooling refrigerant when the
temperature is low to prevent frequent starts and stops of the compressor
and achieve accurate temperature control.
2) Hot air by-pass valve is installed on the connecting pipe of the compressor
outlet and expansion valve outlet.
2.3 Options
2.3.1 Liquid Level Indicator
Picture 2-9: Liquid Level Indicator