Question 37Refrigeration & AC - Assistant Engineer
70% to passIf the discharge reed valves used in a refrigeration compressor are leaking badly, what statement is true?
Athe reed valves should be reground and relapped
Bthe reed valves should be replaced
Cthe low side pressure will indicate below normal
Dthe high-pressure cut-out setting should be lowered
AI Explanation
The correct answer is B) the reed valves should be replaced. If the discharge reed valves in a refrigeration compressor are leaking badly, it indicates that the valves are worn out and need to be replaced. Leaking reed valves will allow compressed refrigerant to flow back into the low-pressure side, causing the low-side pressure to be higher than normal. Attempting to regrind and relap the valves (option A) may provide temporary relief, but the valves will likely continue to deteriorate and leak. Lowering the high-pressure cut-out setting (option D) would not address the root cause of the leaking valves. Therefore, the proper course of action is to replace the faulty discharge reed valves (option B).
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