Why are the intake ports on low and medium temperature ...

[xroflmao]

Why are the intake ports on low and medium temperature compressors larger in size than the intake ports on air conditioning compressors?
 
  What will be an ideal response?

Question 2

Explain the difference between a positive displacement compressor and a non-positive displacement compressor.
 
  What will be an ideal response?

[kilada]

Answer to Question 1

They have to be larger to allow enough low-density, low-pressure refrigerant vapors into the compression cylinder.

Answer to Question 2

Positive displacement compressors move the gas by taking gas into a space and then replacing that space with something physical, like a piston. Non-positive displacement compressors operate like a turbine or fan.