This topic contains a solution. Click here to go to the answer

Author Question: What is the purpose of an aquastat? What will be an ideal ... (Read 37 times)

SO00

  • Hero Member
  • *****
  • Posts: 568
What is the purpose of an aquastat?
 
  What will be an ideal response?

Question 2

Use the information on the data plate in Figure 89-24 to determine the minimum current rating for the unit disconnect.
 
  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

nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Answer to Question 1

Aquastat controls are used for hot water oil fired furnaces. They maintain the furnace water at the proper temperature. There is a high limit setting and a low limit setting. The high limit will shut off the burner at a preset temperature.
When the water temperature reaches the low limit, the burner will start up again so that the water temperature does not drop too low.

Answer to Question 2

The disconnect should be sized at 115 of the minimum circuit ampacity 1.15 x 31.5 = 36.225 since disconnect sizes jump from 30 amps to 60 amps, a 60 amp disconnect will be needed.



SO00

  • Hero Member
  • *****
  • Posts: 568

nicoleclaire22

  • Sr. Member
  • ****
  • Posts: 318
Always glad to help...



 

Did you know?

The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

For a complete list of videos, visit our video library