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Author Question: How does atmospheric pressure affect a refrigeration gauge pressure reading? What will be an ... (Read 46 times)

laurencescou

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on: Jul 26, 2018
How does atmospheric pressure affect a refrigeration gauge pressure reading?
 
  What will be an ideal response?

Question 2

What is the temperature rise of a furnace with a supply air temperature of 130F and a return air temperature of 75F?
 
  What will be an ideal response?


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brittrenee

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

Refrigeration gauges read in psig and are calibrated to read 0 at atmospheric pressure. Changes in atmospheric pressure can change the calibration point, and affect the final reading.

Answer to Question 2

130 - 75 = 55F rise


laurencescou

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Reply 2 on: Jul 26, 2018
Gracias!

anyusername12131

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Reply 3 on: Yesterday
Excellent

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