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

Author Question: The microprocessor control board in a packaged heat pump has the correct inputs and outputs to ... (Read 58 times)

natalie2426

  • Hero Member
  • *****
  • Posts: 524
on: Jul 24, 2018
The microprocessor control board in a packaged heat pump has the correct inputs and outputs to energize
  the reversing valve, but the valve does not energize. What is the next logical step in the troubleshooting
  process?
 
  a. Replace the control board
  b. Check the control board further for defects
  c. Check the reversing valve coil
  d. Replace the reversing valve

Question 2

With a dual-fuel heat pump, at what outdoor temperature is the heat pump typically locked out and the
  furnace activated to provide heat?
 
  a. Below 25F
  b. Below freezing
  c. Slightly above the structure's balance point
  d. 10F below the balance point


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

SamMuagrove

  • Sr. Member
  • ****
  • Posts: 312
Reply #1 on: Jul 24, 2018
Answer to Question 1

c

Answer to Question 2

c


natalie2426

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jul 24, 2018
Thanks


SamMuagrove

  • Sr. Member
  • ****
  • Posts: 312
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Insulin pump Insulin pump
Homeostasis and negative feedback as related to control of body temperature. Homeostasis and negative feedback as related to control of body temperature.
When the exhaust is lean, the PCM applies a positive current into the pump cell. When the exhaust is lean, the PCM applies a positive current into the pump cell.
Heat Stress and Wind Chill: Indices of Human Discomfort Heat Stress and Wind Chill: Indices of Human Discomfort
Control of Hormone Secretion Control of Hormone Secretion
A simplified overview of the genes and regulatory units involved in the control of lactose metabolis A simplified overview of the genes and regulatory units involved in the control of lactose metabolis
Video: Language Areas Animation

For a complete list of videos, visit our video library