If the water failure switch should fail to shut down the refrigeration compressor, the refrigerant pressure will build up in the high pressure side of the system to the point where which of the following would happen FIRST?
• High-pressure safety devices on refrigeration systems (relief valve vs high-pressure cutout switch) • What happens when condenser cooling water fails and refrigerant can’t condense properly • The difference between mechanical damage (valves/tubes) and automatic protective devices
• When condenser water flow stops, which component in a properly designed system is intended to react before physical damage occurs? • Between a relief valve and a high-pressure cutout switch, which one is usually set to act at a lower pressure to protect the system? • Would the system normally allow damage to tubes or valves to occur before any safety or control device operates?
• Verify which device is designed as a normal control/protective shutdown vs an emergency overpressure safeguard. • Check typical sequence: normal operation → pressure rises → control/safety devices respond → only if they fail, then mechanical damage occurs. • Confirm which option reflects a designed safety response rather than a failure consequence (broken parts).
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