Author Question: Why are the dampers on registers normally not used for balancing the system airflow? What will be ... (Read 57 times)

Mollykgkg

  • Hero Member
  • *****
  • Posts: 529
Why are the dampers on registers normally not used for balancing the system airflow?
 
  What will be an ideal response?

Question 2

Why is it important to fill the brazed copper joint completley when R410A refrigerants are used?
 
  What will be an ideal response?



tennis14576

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

If supply registers are used as balancing dampers they will produce excessive noise in the space.

Answer to Question 2

These higher-pressure refrigerants will cause the copper pipe to expand slightly as the pressure inside the pipe increases. As the pressure decreases, the pipe contracts. This cyclical expansion can cause a stress fracture if the joint is not completely filled with brazed metal.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

For a complete list of videos, visit our video library