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Reta book 2 Chapter 4 Questions & Answers 100% Correct!! $11.99   Add to cart

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Reta book 2 Chapter 4 Questions & Answers 100% Correct!!

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  • Reta Book 2 Chapter 4

57- What is the main disadvantage of a hand expansion valves in the early refrigeration system. - ANSWER-They did not automatically adjust to a changing loads so an operator had to frequently check and adjust them. 58- What is the advantage of a thermostatic expansion valve. - ANSWER-They will a...

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  • August 19, 2024
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  • Reta book 2 Chapter 4
  • Reta book 2 Chapter 4
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Reta book 2 Chapter 4
Questions & Answers
100% Correct!!

57- What is the main disadvantage of a hand expansion valves in the early refrigeration system. -
ANSWER-They did not automatically adjust to a changing loads so an operator had to frequently
check and adjust them.



58- What is the advantage of a thermostatic expansion valve. - ANSWER-They will automatically
adjust themselves to match varying load conditions.




61- What is the average starting point for setting superheat at the outlet of a DX coil. - ANSWER-10
degrees



62- Level adjustment of an LL type float switch assembly is accomplished by.. - ANSWER-Repiping or
re-attaching the float at a different level.



63-When servicing a DX air unit - ANSWER-A seperate isolation valve must always be used to isolate
the coil.



64- Which of the following is a typical function of a low side vessel - ANSWER-Phase seperation



65-If a power element of a TXV lost its charge - ANSWER-The evaporator would starve.

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