Pump Down Principle Overview | Cooling System Control

[TSN79]

"Pump down" principle

A building has a storage room that needs to be cooled. This cooling-system is to be controlled using the "pump-down" principle. I have absolutely no idea what this implies! Anyone...?

 

[Danger]

Not me, lad. Sorry. I might be familiar with the process, but not by that name.

 

[kleinjahr]

Do you mean pumping down to a vacuum? Or do you mean pumping down the refrigerant? (pulling the refrigerant out of the system).

You might want to check some of the HVAC sites or eng-tips.com.