Concerning the proper installation of the...

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Question 1 of 2066636eee28f7522a1c51e726

Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true?

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Question 1 of 20

66636eee28f7522a1c51e726

Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true?

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🔍 Key Concepts

• Thermal expansion valve (TXV) operation and how the sensing bulb measures superheat • Effect of bulb position on refrigerant pooling (liquid vs vapor) in a horizontal suction line • Manufacturer best practice for mounting bulbs on horizontal evaporator outlet lines

💭 Think About

• How would liquid refrigerant or oil behave inside a horizontal suction line, and how could that affect what the bulb "feels" if it is placed on top, side, or bottom? • If the bulb must sense true line temperature, which orientation helps avoid false readings from liquid puddling at the bottom of the pipe? • Think about where most manufacturers recommend placing the bulb on a horizontal line (clock position), and how the tubing ends of the bulb should be oriented to keep the sensing surface in best contact.

✅ Before You Answer

• Verify which orientation keeps the active sensing portion of the bulb in best thermal contact with the line, not blocked by the pinch or the capillary connection • Check which option avoids locating the sensing area where liquid refrigerant can collect at the very bottom of the pipe • Confirm which choice is consistent with standard HVAC/R practice for mounting TXV bulbs on horizontal suction lines (usually around the side of the pipe, not straight up or straight down)

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Question 1 of 2066636eee28f7522a1c51e726

Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true?

Back

Question 1 of 20

66636eee28f7522a1c51e726

Concerning the proper installation of the sensing bulb of a thermal expansion valve that is attached to the evaporator tail coil on a horizontal run, what statement is true?

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?

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