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Author Question: Why are sections of tubing that are to be fitted together sometimes swaged? What will be an ideal ... (Read 28 times)

acc299

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on: Jul 26, 2018
Why are sections of tubing that are to be fitted together sometimes swaged?
 
  What will be an ideal response?

Question 2

How does the trial ignition period differ between a fan assisted furnace as compared to a furnace with atmospheric burners?
 
  What will be an ideal response?


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frre432

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Reply #1 on: Jul 26, 2018
Answer to Question 1

This method allows for less soldered or brazed joints.

Answer to Question 2

With a fan assisted type furnace there will be an air proving switch and a combustion air blower motor relay. On a call for heat from the thermostat the blower initially starts. There will be approximately a 45 second pre-purge before the module begins the pilot ignition sequence.


acc299

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Reply 2 on: Jul 26, 2018
YES! Correct, THANKS for helping me on my review

FergA

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Reply 3 on: Yesterday
Wow, this really help

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