Suction Line Superheat Diagnostic
Calculate suction line superheat to diagnose refrigerant charge and expansion valve performance. Detect compressor liquid floodback.
Technical Engineering Guide & Field Diagnostic Practices
Superheat measures the sensible temperature increase of vapor refrigerant after it has completely boiled off in the evaporator coil. Adequate superheat guarantees that 100% dry vapor enters the compressor, preventing catastrophic liquid floodback which destroys valves, pistons, and scroll wraps.
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