When a refrigerated space reaches the...

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Question 1 of 205eccef9dbacbc34ba4d4605b

When a refrigerated space reaches the minimum desired temperature in a multi-box refrigeration system, which of the listed actions will occur FIRST after opening of the box thermostat?

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5eccef9dbacbc34ba4d4605b

When a refrigerated space reaches the minimum desired temperature in a multi-box refrigeration system, which of the listed actions will occur FIRST after opening of the box thermostat?

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🔍 Key Concepts

• Multi-box (multiple evaporator) refrigeration systems and how each box is controlled individually • What happens in the control circuit when a box thermostat opens as temperature setpoint is reached • The roles of the solenoid valve and pressure cutout switches in starting/stopping refrigerant flow and compressor operation

💭 Think About

• Think about which component is wired or controlled directly by the box thermostat in a multi-box system. • Ask yourself: when only one box is satisfied (reaches temperature), does the system usually shut down the entire compressor first, or just stop cooling that specific box? • Consider what has to happen to the refrigerant flow to that one box before suction or discharge pressures can change enough to trip any pressure cutout switches.

✅ Before You Answer

• Identify which device is local to that specific box versus which devices protect or control the entire system. • Verify what an open thermostat contact does in a typical refrigeration control circuit – does it energize or de-energize a valve? • Confirm whether pressure cutout switches react immediately to thermostat position, or only after suction/discharge pressures change due to earlier actions.

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Question 1 of 205eccef9dbacbc34ba4d4605b

When a refrigerated space reaches the minimum desired temperature in a multi-box refrigeration system, which of the listed actions will occur FIRST after opening of the box thermostat?

Back

Question 1 of 20

5eccef9dbacbc34ba4d4605b

When a refrigerated space reaches the minimum desired temperature in a multi-box refrigeration system, which of the listed actions will occur FIRST after opening of the box thermostat?

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

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