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

Author Question: What is the function of a purge unit? A) A purge unit is used to purge the refrigeration oil out ... (Read 112 times)

cherise1989

  • Hero Member
  • *****
  • Posts: 555
on: Jul 24, 2018
What is the function of a purge unit?
 
  A) A purge unit is used to purge the refrigeration oil out of the refrigerant.
  B) A purge unit is used to purge the superheat from the condenser.
  C) A purge unit will purge the air from the top of the condenser.
  D) A purge unit is used to purge the air out of the chilled water loop.

Question 2

Why do air-source heat pumps usually require auxiliary heat?
 
  A) The heat that a heat pump pumps in must first be provided by an auxiliary heat source
  B) Because air-source heat pumps break down a lot
  C) The heat pump compressor will not start in cold weather unless it is first warmed up
  D) Because the heating capacity of the unit drops as house heating requirements increase


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

josephsuarez

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


cherise1989

  • Member
  • Posts: 555
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

vickyvicksss

  • Member
  • Posts: 351
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

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?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

An example of modification of a structure for a new function An example of modification of a structure for a new function
Hydration is essential to body function, especially engaged in strenuous activities Hydration is essential to body function, especially engaged in strenuous activities
Transformation of Exponential Function Transformation of Exponential Function
Higher centers influencing autonomic function. Higher centers influencing autonomic function.
How to transform the natural exponential function (e^x) How to transform the natural exponential function (e^x)
Ferris Wheel Periodic Function Ferris Wheel Periodic Function
Video: Chemical Changes

For a complete list of videos, visit our video library