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Author Question: What is the advantage to a two-pipe system, direct return? What will be an ideal ... (Read 57 times)

Yolanda

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on: Jul 26, 2018
What is the advantage to a two-pipe system, direct return?
 
  What will be an ideal response?

Question 2

How often should the refrigeration oil in a compressor be changed?
 
  What will be an ideal response?


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djpooyouma

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

With this piping arrangement, each unit will receive the same supply water temperature.

Answer to Question 2

Refrigeration oil does not need regular changing. Refrigeration oil is usually only changed to clean up a contaminated system or to add a retrofit refrigerant.


Yolanda

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Reply 2 on: Jul 26, 2018
Excellent

Joy Chen

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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