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Author Question: A Category IV furnace operates with a: A) High-temperature, positive-pressure vent. B) ... (Read 121 times)

neverstopbelieb

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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


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rekilledagain

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

C


neverstopbelieb

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Reply 2 on: Jul 24, 2018
Wow, this really help

jackie

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Reply 3 on: Yesterday
Gracias!

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