If both the low -side and the high-side pressures are low, which of these could be...
Homework Answers
D. TXV stuck open
A small amount of refrigerant vaporizing will cause a lower pressure. High Superheats also are caused by the evaporator and compressor being starved of refrigerant. With the TXV restricted, the evaporator will become inactive and run high superheat. This will cause the compressor superheat to be high.
The symptoms of TXV stuck open are:
1, Low evaporator (suction) pressure
2, Low compressor amp draw
3, Short-cycling on the low-pressure control;
4, Somewhat high discharge temperature;
5.Low condensing (head) pressure;
6. low condenser split; and.
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