This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: The main difference between an ERV and an HRV is the _____. a. way the heat exchanger core works ... (Read 73 times)

acc299

  • Hero Member
  • *****
  • Posts: 569
on: Jul 24, 2018
The main difference between an ERV and an HRV is the _____.
 
  a. way the heat exchanger core works
  b. size of the exhaust fans
  c. type of economizer used
  d. number of heat exchangers

Question 2

Which refrigerant is due to be phased out (no new refrigerant manufactured) by 2030?
 
  a. HFC-410A
  b. HFC-407A
  c. HCFC-22
  d. HFC-417A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

britb2u

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jul 24, 2018
Answer to Question 1

a

Answer to Question 2

c


acc299

  • Member
  • Posts: 569
Reply 2 on: Jul 24, 2018
Excellent

tranoy

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

There are actually 60 minerals, 16 vitamins, 12 essential amino acids, and three essential fatty acids that your body needs every day.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

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?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
The nuse works within the cultural mores of American families. The nuse works within the cultural mores of American families.
How allopatric speciation works. How allopatric speciation works.
This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ... This girl’s photo illustrates the main features of fetal alcohol syndrome, including a flat nasal ...
The Main Macromolecules in Cells The Main Macromolecules in Cells
You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ... You heat 3.952 g of a mixture of Fe3O4 and FeO to form 4.162 g Fe2O3. The mass of oxygen ...
Video: Congenital Heart Defects Animation

For a complete list of videos, visit our video library