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Author Question: How do direct expansion cooling coils differ from indirect expansion coils? What will be an ideal ... (Read 118 times)

gonzo233

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on: Jul 26, 2018
How do direct expansion cooling coils differ from indirect expansion coils?
 
  What will be an ideal response?

Question 2

What are the common types of preheaters that are used?
 
  What will be an ideal response?


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parshano

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

The control of air temperature when using direct expansion coils is accomplished by regulating the refrigerant flow through the coil at the inlet. Indirect expansion coils use chilled water and typically the air temperature is controlled by regulating the water flow through the coil at the outlet.

Answer to Question 2

These may be electric, steam, or hot water.


gonzo233

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Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it

debra928

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Reply 3 on: Yesterday
Wow, this really help

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