Author Question: Why are there thin metal fins located on the tubes of evaporators and condensers on PTAC units? ... (Read 145 times)

fahad

  • Hero Member
  • *****
  • Posts: 570
Why are there thin metal fins located on the tubes of evaporators and condensers on PTAC units?
 
  What will be an ideal response?

Question 2

How should used refrigerants and refrigerant oils be disposed of?
 
  What will be an ideal response?



duy1981999

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

To increase surface area and heat transfer.

Answer to Question 2

They must be taken to a state or locally approved recycler that specializes in used refrigerants and used refrigerant oils.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

For a complete list of videos, visit our video library