Refrigerant charging basic?

[jayleewa]

Dry cleaning machine hermeticical refrigerantor
With heat pump coil, evaporation coil, water use
Receiver, Please tell me R-22 refrigerant charging
basic.

[nike123]

Really confusing question! Try again. I suppose that language is not issue.

[OAT99]

First, you must find out (from serial number on the compressor) the weighted charge of refrigerant for the compressor. Pull a deep ( microns) vacuum and check to see if the gage moves. Be patient and hold the vacuum for 30min or more.

[Brian_UK]

Well, I think we've scared away this one

He's used up all his words

[nike123]

Yep, we should be careful and use psychological approach in few first posts to encourage flow of words.

[yangchenchen]

pressure test to see if there is some leakage in the refrigeration system.
Evacuate the refrigeration to required micro value
charge refrigerants