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← TechnologyWhich consequence results when an HVAC system's variable-speed compressor pump experiences excessive cycling?
A)Refrigerant flooding reaches the compressor✓
B)Evaporator coil undergoes accelerated corrosion
C)Superheat increases beyond critical values
D)Subcooling decreases, reducing system capacity
💡 Explanation
Compressor cycling promotes oil dilution because the refrigerant absorbs oil during the off cycle, leading to lubrication failure upon restart, therefore refrigerant flooding occurs rather than controlled oil return. Subcooling, superheat, and corrosion are separate issues; excessive starts causes lubricant washout.
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