The purpose of the water failure switch in a...

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Question 1 of 205eccef9dbacbc34ba4d46040

The purpose of the water failure switch in a water-cooled refrigeration system is to react to a loss of cooling water pressure and function to protect the system from high pressure. When a loss of cooling water pressure causes the water failure switch to open, what is the result?

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🔍 Key Concepts

• Water-cooled condenser protection in refrigeration systems • How a water failure switch works as a safety interlock • Relationship between compressor operation and high-pressure cutout devices

💭 Think About

• When cooling water is lost, what happens to condenser pressure if the compressor keeps running? Which component needs to be protected first? • If a switch "opens" in a control circuit, does that usually start something, stop something, or change the state of another safety device? • Which choice directly removes the cause of rising discharge pressure, and which choices only react after pressure is already too high?

✅ Before You Answer

• Verify what an open safety switch typically does in a low-voltage control circuit to the compressor motor starter. • Consider whether a water failure switch normally acts before or after the high-pressure cutout in the sequence of protection. • Check which option best describes a control action, not just a pressure condition (i.e., something that is turned on/off as a result of the switch opening).

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