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Author Question: Why does an air source heat pump system's heating capacity decrease as the outdoor temperature ... (Read 129 times)

Hungry!

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on: Jul 27, 2018
Why does an air source heat pump system's heating capacity decrease as the outdoor temperature decreases?
 
  A) the compression ratio increases because the evaporator pressure increases
  B) the compression ratio decreases because the evaporator pressure increases
  C) the compression ratio decreases because the evaporator pressure decreases
  D) the compression ratio increases because the evaporator pressure decreases

Question 2

Variable refrigerant flow systems use:
 
  A) Scroll compressors and electronic expansion valves.
  B) Inverter driven systems and thermostatic expansion valves.
  C) Inverter driven systems and electronic expansion valves.
  D) Scroll compressors and thermostatic expansion valves.


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jojobee318

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

C


Hungry!

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Reply 2 on: Jul 27, 2018
Wow, this really help

jojobee318

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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