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Jiangsu Hongyue Refrigeration Technology Co., Ltd. is a professional manufacturer engaged in cold storage panel, cold storage door, sandwich panel, production, processing and installation.
The refrigeration unit of cold storage is mainly composed of four parts: refrigeration compressor, condenser, cooling fan and solenoid valve, plus oil separator, liquid storage bucket, oil mirror and diaphragm type hand valve return filter. Below, small series summarized eight common refrigeration unit failure, convenient for you to better overhaul, to maintain the good operation of refrigeration unit.
1, refrigeration units, high exhaust temperature, refrigeration unit coolant level is too low, dirty oil cooler, oil filter core plugging, temperature control valve fault, broken oil electromagnetic valve without electricity or coil is damaged, broken oil electromagnetic valve diaphragm rupture or aging, fan motor fault, the damage of cooling fan, exhaust pipe is not clear or exhaust resistance is big, the environment temperature exceeds the scope of the specified temperature sensor, pressure gauge whether failure.
2, refrigeration unit pressure is low, the actual gas is greater than the refrigeration unit output volume, purge valve failure, intake valve failure, hydraulic cylinder fault, electromagnetic valve failure load, the minimum pressure valve jammed, user pipe network leakage, pressure setting is too low, force sensor, pressure gauge, pressure switch, pressure sensor or pressure gauge input tube leakage.
3, the refrigeration unit fuel consumption or compressed air oil content is large, the cooling dose is too much, the correct position should be in the refrigeration unit loading observation, at this time the oil level should not be more than half, return pipe blockage; The installation of return tubing does not meet the requirements, the exhaust pressure is too low during the operation of the refrigeration unit, the oil separation core is broken, the internal partition of the separation cylinder is damaged, the refrigeration unit has oil leakage, the coolant deterioration or overdue use.
4, the refrigeration unit exhaust pressure is too high, inlet valve fault, hydraulic cylinder fault, load electromagnetic valve fault, pressure set too high, pressure sensor fault, pressure gauge fault, pressure switch fault.
6. The refrigeration unit cannot be started, the fuse wire is bad, the temperature switch is bad, the wiring is loosened, the thermal relay of the main motor ACTS, the thermal relay of the fan motor ACTS, the transformer is bad, there is no power input, the fault is not eliminated, and the controller fails.
7. Fan motor overload, fan deformation, fan motor fault, fan motor thermal relay fault, loose wiring, cooler blockage, high exhaust resistance.
8. When the refrigeration unit starts up, the current is large or tripping, the user's air switch is wrong, the input voltage is too low, the hydraulic cylinder fails, the inlet valve fails, the connection is loose, the main engine fails, the main motor fails, the 1TR time relay fails.