When using the Shanghai Bilang Freeze Dryer, the following should be noted for starting and running!
Send the power to the control box, press the ON button of the ON/OFF button switch, the operation indicator light indicates, the machine contactor is closed, and the compressor is running. At this time, the refrigerant low pressure gauge pointer should be indicated within the range of 60~85Psig. If the load exceeds this range, adjust it by evaporating pressure adjustment.
After the compressor runs smoothly, the pressure of the refrigerant high pressure gauge rises to between 120 and 240 psig. When the high pressure of the refrigerant is higher than this range, please check if the condenser heat dissipation is good, the air compressor inlet temperature and the ambient temperature are too high. When the anti-freeze switch is operated below 140Psig, the condensing fan stops running to increase the pressure to ensure the normal operation of the machine. If the machine is running under low pressure for a long time, please check if the refrigeration system leaks and the ambient temperature is too low.
In order to avoid damage to the compressor caused by frequent starting of the compressor. It takes more than three minutes to restart after shutdown. The valve on the machine has been adjusted at the factory. If it is not for professional use, please do not adjust it to avoid unnecessary damage to the machine.
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