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Author Question: Utilities can be run to the rooftop unit in what two ways? What will be an ideal ... (Read 80 times)

kwoodring

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on: Jul 26, 2018
Utilities can be run to the rooftop unit in what two ways?
 
  What will be an ideal response?

Question 2

List the recovery levels for Type II systems using a recovery system manufactured before November 15, 1993.
 
  What will be an ideal response?


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Ddddd

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

Utilities can be run to the rooftop either from underneath and through the curb or through the roof outside the roof curb.

Answer to Question 2

0 psig for very high pressure refrigerants
0 psig for systems with less than 200 pounds of R-22
4 hg vacuum for systems with 200 pounds or more R-22
4 hg vacuum for other high-pressure refrigerants regardless of the amount of refrigerant in the system


kwoodring

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

Alyson.hiatt@yahoo.com

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Reply 3 on: Yesterday
Gracias!

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