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

Author Question: Rooftop units can have the ductwork connected to either: A) The bottom or side of the unit. B) ... (Read 159 times)

frankwu

  • Hero Member
  • *****
  • Posts: 549
on: Jul 24, 2018
Rooftop units can have the ductwork connected to either:
 
  A) The bottom or side of the unit. B) The top or side of the unit.
  C) The main unit or a satellite blower coil. D) The bottom or top of the unit.

Question 2

The difference between 80 percent efficiency furnaces and 90 percent efficiency furnaces is that 90 percent efficiency furnaces:
 
  A) Use more combustion air per 1,000 BTU firing rate.
  B) Have an extra recuperative heat exchanger that condenses water out of the flue gas.
  C) Burn more gas to increase the heat exchanger temperatures.
  D) Use more efficient air filters.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cat123

  • Sr. Member
  • ****
  • Posts: 310
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

B


frankwu

  • Member
  • Posts: 549
Reply 2 on: Jul 24, 2018
Gracias!

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

A structural gene as a transcriptional unit A structural gene as a transcriptional unit
Components of a long bone. The entire long bone is on the left side accompanied by a blowup of the p Components of a long bone. The entire long bone is on the left side accompanied by a blowup of the p
Near side of the Moon Near side of the Moon
Prefilled Unit-Dose Systems Prefilled Unit-Dose Systems
Let f(x)=log10(bottom exponent)x. For each function g(x) i), iii), v Let f(x)=log10(bottom exponent)x. For each function g(x) i), iii), v
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library