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    Home > Active Ingredient News > Drugs Articles > What are the main faults of the compressor? How do I replace it if it's broken?

    What are the main faults of the compressor? How do I replace it if it's broken?

    • Last Update: 2020-07-15
    • Source: Internet
    • Author: User
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    , compressor main fault and cause analysis
    1, blocking (stuck): compressor does not move, and emits a "buzz" sound:foreign objects into, crankshaft, pistons, cylinders and other moving parts stuck to death; Burn damage;voltage is too low,compressor is oil-deficient or overloaded, mechanical components are severely honed,oil deterioration, mechanical components are severely honed,low temperature when heating at low temperatures,compressor capacitor damage or decay,rotor clearance is poor2, the compressor can move, but the exhaust pressure is low:the compressor to inhale liquid,condenser failure,protector action,pipeline resistance3, the compressor can move, but due to the gradual increase in current and stop:the protector action, breathing pressure is too high, compressor mechanical part is damaged, 4, compressor overcurrent: two faults, refrigeration system blockage, overload operation (refrigerant volume, voltage); fan motor speed (capacitor attenuation, fan failure); variable frequency converter to pay special attention to the electrical control failure three cameras run without phase and windingburn use the external overload protector, use the meter to measure whether the overload protector is on, normal is on 5, loud noise: compressor start-up, 3 to 5 minutes, due to system instability, there will be a loud noise phenomenon; pipe vibration sound, motor and wind leaf sound, sheet metal resonance sound ; system when air mixed in, there will be a sound of air flow; system impurities or copper chips, there will be a metal impact valve sound; rotor clearance is not good; 6, valve bad (no suction exhaust capacity, high and low pressure string gas): valve chip gap is large, stuck (rotor type); crankshaft broken, no rotation; spring broken; compressor oil shortage, valve chip wear ingemuch; foreign material into the compressor cylinder; four-way valve string air; lack of refrigerant; three-phase power supply, 7, winding current is large: other components of the system (mainly motors, electric control) are operating normally ; stator burn (coil short circuit, overload, phase-out operation, refrigerant leakage); The ambient temperature is too high; the steps and attention point of replacing the compressor
    1, release refrigerant: pay attention to the operating environment ventilation, refrigerant speed can not be too fast, so as to avoid the person by refrigerant frostbite; Be aware of the refrigerant color, such as white or colorless, the system's internal cleanliness is higher The compressor may not be damaged, be careful! 2, remove the exhaust pipe: nitrogen charging operation, to avoid the system internal production of oxidation skin, pay attention to the copper pipe inner wall whether there is impurities foreign material 3, empty operation: before the old compressor is removed, to ensure that the suction pipe mouth is open state, running time does not exceed 5 seconds, to judge whether the compressor monomer is blocked, whether there is suction exhaust Test the compressor for exhaust can be used with your fingers close to the exhaust port feel, the insulation pressure resistance, running current of the old compressor may leak, can not be tested in this way. 4, remove and handle the old compressor: the old compressor must be suction, exhaust seal within 15 minutes, must ensure that the old compressor code and machine bar code clear, 5, cleaning system: cleaning fluid requires high dissolved oil, easy to volatile, recommended use of R11; 6, replace the new compressor: in principle, the use of prototype original brand compressor, really can not meet must ensure that the new compressor capacity and the old compressor capacity is consistent; 7, welding new compressor: must be filled with nitrogen welding, and ensure that nitrogen reaches the welding position, preheat to the copper pipe pink is appropriate, the temperature of the copper pipe must melt the welding rod, not by the flame directly melt
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