The high pressure cut-out switch used on...

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Question 1 of 205eccef9dbacbc34ba4d46028

The high pressure cut-out switch used on refrigeration units for low pressure systems is set to shut off the compressor at which of the following pressures?

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5eccef9dbacbc34ba4d46028

The high pressure cut-out switch used on refrigeration units for low pressure systems is set to shut off the compressor at which of the following pressures?

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🔍 Key Concepts

• Relationship between low pressure refrigerants and operation slightly below atmospheric pressure • Purpose of a high pressure cut-out switch on low pressure systems (to protect the chiller shell from overpressure) • Difference between cut-out settings and relief valve settings (cut-out should act before a relief lifts)

💭 Think About

• What is the approximate maximum safe operating pressure for a low pressure chiller shell before you risk lifting a safety relief valve? • Should the high pressure cut-out setting be lower than, equal to, or higher than the relief valve setting? How does that affect which answer choice you pick? • Looking at 1, 5, 10, and 15 psig, which value best matches a point that is near the upper design/relief range for low pressure equipment, rather than normal operating pressure?

✅ Before You Answer

• Verify the typical design/relief pressure limit for low pressure refrigerant chillers (often around the low‑teens psig range). • Confirm that a high pressure cut-out is a control/safety switch, not the ultimate relief device, so it should trip before a relief valve lifts. • Compare each option (1, 5, 10, 15 psig) to what you know about normal vacuum/low positive pressures in these systems and eliminate any that are clearly too low to be a high-pressure safety cutoff.

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Question 1 of 205eccef9dbacbc34ba4d46028

The high pressure cut-out switch used on refrigeration units for low pressure systems is set to shut off the compressor at which of the following pressures?

Back

Question 1 of 20

5eccef9dbacbc34ba4d46028

The high pressure cut-out switch used on refrigeration units for low pressure systems is set to shut off the compressor at which of the following pressures?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed