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 65 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
Gracias!

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

In 2010, opiate painkllers, such as morphine, OxyContin®, and Vicodin®, were tied to almost 60% of drug overdose deaths.

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Physiological Factors Affecting Blood Pressure Physiological Factors Affecting Blood Pressure
Common phlebotomy issues. Common phlebotomy issues.
a) Appropriate chair height b) Chair is too low c) Chair is too high a) Appropriate chair height b) Chair is too low c) Chair is too high
Cardiovascular and renal control of blood pressure. Cardiovascular and renal control of blood pressure.
Connections of a nitric acid plant, intermediate pressure type Connections of a nitric acid plant, intermediate pressure type
Video: Non-polar compounds - insolubility

For a complete list of videos, visit our video library