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Author Question: What measurements are required to check combustion efficiency? A) Manifold pressure, firing rate, ... (Read 20 times)

karlynnae

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on: Jul 24, 2018
What measurements are required to check combustion efficiency?
 
  A) Manifold pressure, firing rate, and gas heating value
  B) Ambient temperature, stack temperature, flue gas O2, and flue gas CO
  C) O2, CO2, and CO ppm
  D) Return air temperature, supply and temperature, and stack temperature

Question 2

Which of the following mini-split system indoor units requires a condensate pump because gravity condensate draining is never feasible for this type of installation?
 
  A) Wall mount B) Floor mount C) Ceiling suspended D) All of these


cat123

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

B

Answer to Question 2

C


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