Author Question: Explain the ASHRAE refrigerant safety designation regarding refrigerants toxicity and flammability. ... (Read 78 times)

EY67

  • Hero Member
  • *****
  • Posts: 531
Explain the ASHRAE refrigerant safety designation regarding refrigerants toxicity and flammability.
 
  What will be an ideal response?

Question 2

What is the system balance point?
 
  What will be an ideal response?



vickybb89

  • Sr. Member
  • ****
  • Posts: 347
Answer to Question 1

A  lower toxicity - requires more than 400 parts per million to be hazardous B- higher toxicity  requires less than 400 parts per million to be hazardous

Answer to Question 2

The lowest temperature at which the heat pump can heat the structure is called the balance point. Below this temperature, auxiliary heat will be required to maintain comfort conditions.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

For a complete list of videos, visit our video library