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Author Question: What safety measures are used to allow for expansion in a hot water heating system? What will be ... (Read 15 times)

wrbasek0

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on: Jul 26, 2018
What safety measures are used to allow for expansion in a hot water heating system?
 
  What will be an ideal response?

Question 2

Using the information in question 10, you measure a suction pressure of 130 psig for an R-410A system. What should the suction line temperature be?
 
  What will be an ideal response?


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guyanai

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Reply #1 on: Jul 26, 2018
Answer to Question 1

Both temperature and pressure limiting controls are used to maintain the water within safe conditions.
A pressure relief device is supplied in the piping to relieve excess pressure should it occur.
An expansion tank is provided in the piping, partly filled with air, to permit normal expansion and contraction of the water.

Answer to Question 2

R-410A 130 psig = 45F saturation
45F + 18F = 63F suction line temperature


wrbasek0

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Reply #2 on: Jul 26, 2018
Thank you!


guyanai

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Reply #3 on: Jul 26, 2018
Always glad to help...


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