Which of the statements listed is applicable...

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Question 1 of 2066636eee28f7522a1c51f37e

Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration RA-0007

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Question 1 of 20

66636eee28f7522a1c51f37e

Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration RA-0007

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🔍 Key Concepts

• Thermostatic expansion valve (TXV) function in a refrigeration system • Location and purpose of the sensing (control) bulb on a TXV • Difference between space temperature control and superheat control at the evaporator outlet

💭 Think About

• Look at where the sensing bulb line from the valve body goes in the illustration. What pipe is it attached to in a real installation? Suction, liquid, or discharge? • Ask yourself: Does a TXV directly control the room temperature, or does it control a condition inside the evaporator to protect the compressor? • Consider what the word equalizing means on an external equalizer line. Equalizing what two pressures, and would that be connected to a high-pressure component like the receiver or a low-pressure point like the evaporator outlet?

✅ Before You Answer

• Verify which line in the drawing is the bulb capillary tube and where it leads to in the system piping. • Confirm what parameter a TXV is designed to control: superheat at the evaporator outlet vs. room temperature vs. conditions at another valve. • Check whether an external equalizer is normally tied into the liquid receiver (high-pressure side) or near the evaporator outlet (low-pressure side).

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Question 1 of 2066636eee28f7522a1c51f37e

Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration RA-0007

Back

Question 1 of 20

66636eee28f7522a1c51f37e

Which of the statements listed is applicable to the thermostatic expansion valve shown in the illustration? Illustration RA-0007

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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