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Liquid hammer is extremely destructive. It can shatter the scroll plate in a short period, damage the compression chamber, and the fragments may scratch the motor insulation layer, leading to short circuits.
Excessive refrigerant charge: Causes massive liquid return in the system (more likely to occur under small-load cooling in low-temperature environments or heating in low-temperature conditions).
Excessive oil charge: Leads to oil hammer in the system (rarely occurs). For high-pressure chamber compressors, excessive lubricating oil increases resistance to motor rotation, raises input power, impairs motor heat dissipation, and shortens motor life.
High-temperature burnout of the compressor
Fault symptoms:
Fault cause analysis:
Liquid hammer is extremely destructive. It can shatter the scroll plate in a short period, damage the compression chamber, and the fragments may scratch the motor insulation layer, leading to short circuits.
Excessive refrigerant charge: Causes massive liquid return in the system (more likely to occur under small-load cooling in low-temperature environments or heating in low-temperature conditions).
Excessive oil charge: Leads to oil hammer in the system (rarely occurs). For high-pressure chamber compressors, excessive lubricating oil increases resistance to motor rotation, raises input power, impairs motor heat dissipation, and shortens motor life.
High-temperature burnout of the compressor
Fault symptoms:
Fault cause analysis:
