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

Author Question: How does a pneumatic control system operate? What will be an ideal ... (Read 72 times)

EAugust

  • Hero Member
  • *****
  • Posts: 550
on: Jul 26, 2018
How does a pneumatic control system operate?
 
  What will be an ideal response?

Question 2

Explain how a technician should manual defrost a frozen evaporator coil.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

HandsomeMarc

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jul 26, 2018
Answer to Question 1

Pneumatic controls operate on air pressure. The output of a pneumatic control is an air pressure that varies in proportion to the condition being sensed.

Answer to Question 2

Using water is the best method, but is not always practical since the water will need to be drained away. If water cannot be used easily, a heat gun usually works well.


EAugust

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 26, 2018
Thank you!


HandsomeMarc

  • Sr. Member
  • ****
  • Posts: 360
Reply #3 on: Jul 26, 2018
Always glad to help...


« previous next »
 

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

The digestive system. The digestive system.
The Old River Flood Control Structures The Old River Flood Control Structures
Hormonal control of the male reproductive hormones. Hormonal control of the male reproductive hormones.
Emission Control Limit Emission Control Limit
Control of thyroxine secretion through negative feedback. Control of thyroxine secretion through negative feedback.
Gate control theory. A. open gate, B. closed gate Gate control theory. A. open gate, B. closed gate
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library