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

Author Question: List some common causes of an evaporator operating with a low superheat and a high suction pressure. ... (Read 53 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jul 26, 2018
List some common causes of an evaporator operating with a low superheat and a high suction pressure.
 
  What will be an ideal response?

Question 2

Why are electro mechanical control systems often referred to as relay control systems?
 
  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

DylanD1323

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 26, 2018
Answer to Question 1

Some common causes of an evaporator with a low superheat and a high suction pressure are:
oversized valve TXV seat is leaking

low superheat adjustment
sensing bulb making poor thermal contact wrong thermostatic charge
incorrectly located external equalizer

Answer to Question 2

Electromechanical control systems are two position controls that use mechanical switches and magnetically operated devices. Units respond to the presence or absence of 24 volt control power. Relays are common electromechanical controls. When the relay coil receives 24 volts, its contacts close to operate a motor or other controls.


sheilaspns

  • Member
  • Posts: 567
Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

The longest a person has survived after a heart transplant is 24 years.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Assessing Grip Strength Using a Blood Pressure Cuff Assessing Grip Strength Using a Blood Pressure Cuff
Several common functional groups in a single biomolecule Several common functional groups in a single biomolecule
human skin and pressure points human skin and pressure points
Common sites of biofilm infection Common sites of biofilm infection
Avoiding High-Pollution Exercise Times Avoiding High-Pollution Exercise Times
Common Anti-Emetics Common Anti-Emetics
Video: Passive Smoke Exposure

For a complete list of videos, visit our video library