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Author Question: The main difference between an ERV and an HRV is the _____. a. way the heat exchanger core works ... (Read 20 times)

acc299

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on: Jul 24, 2018
The main difference between an ERV and an HRV is the _____.
 
  a. way the heat exchanger core works
  b. size of the exhaust fans
  c. type of economizer used
  d. number of heat exchangers

Question 2

Which refrigerant is due to be phased out (no new refrigerant manufactured) by 2030?
 
  a. HFC-410A
  b. HFC-407A
  c. HCFC-22
  d. HFC-417A


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britb2u

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Reply #1 on: Jul 24, 2018
Answer to Question 1

a

Answer to Question 2

c


acc299

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  • Posts: 569
Reply 2 on: Jul 24, 2018
Gracias!

ashely1112

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

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