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

Author Question: A Category IV furnace operates with a: A) High-temperature, positive-pressure vent. B) ... (Read 65 times)

neverstopbelieb

  • Hero Member
  • *****
  • Posts: 534
on: Jul 24, 2018
A Category IV furnace operates with a:
 
  A) High-temperature, positive-pressure vent. B) Low-temperature, positive-pressure vent.
  C) High-temperature, negative-pressure vent. D) Low-temperature, negative-pressure vent.

Question 2

What components are added to make a two-stage furnace?
 
  A) An extra set of burners and an extra gas valve
  B) Electric heat strips and a second stage sequence
  C) A two-stage gas valve, two draft proving switches, and a two-speed induced draft fan
  D) A second heat exchanger and an electric vent gas damper


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

C


neverstopbelieb

  • Member
  • Posts: 534
Reply 2 on: Jul 24, 2018
:D TYSM

tanna.moeller

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

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?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Ventilation of the mammalian lung by negative pressure filling. Ventilation of the mammalian lung by negative pressure filling.
Connect shop air to the canister and adjust the air pressure regulator to the desired setting. ... Connect shop air to the canister and adjust the air pressure regulator to the desired setting. ...
Apply oil or lotion to the entire leg with effleurage. Use light to medium pressure to warm ... Apply oil or lotion to the entire leg with effleurage. Use light to medium pressure to warm ...
Using trace elements in carbonate shells to estimate temperature Using trace elements in carbonate shells to estimate temperature
How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ... How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ...
Negative Feedback and Temperature Control Negative Feedback and Temperature Control
Video: Kinetic parameters & Kinetic experiment

For a complete list of videos, visit our video library