Which of the devices listed will indicate whether or not a refrigeration system's dehydrator continues to be capable of removing moisture from the circulating refrigerant?
• Refrigeration dehydrator (dryer) function in a sealed system • How moisture in refrigerant is commonly monitored in operation • Difference between measuring pressure/vacuum, particles, and moisture indication
• Ask yourself: which device lets an operator see, during normal operation, whether moisture is present in the liquid refrigerant line? • Which option is specifically designed as a built‑in indicator of moisture condition, rather than a lab test or pressure/vacuum gauge? • Think about what you would actually look at on a running system to confirm the dryer is still doing its job.
• Identify which choice is physically installed in the liquid line of many refrigeration systems. • Eliminate any device that only measures pressure or vacuum, not moisture. • Eliminate any method that would require taking a sample out of the system instead of providing a continuous visual indication.
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