What do you mean by "good ice"? Discharge pressure is not optional and you gave almost no information for us to work with.

 

Yes sir...some more info would be awesome....what brand of ice maker? Air or water cooled? What's ur ambient?
Define "not good ice" that can mean a million things....only the bottom half making ice?
We will be more able to help u with lots more info. Also model and serial would be nice...
Remember never guess the charge on an ice machine. Pull and weigh the charge and verify and always weigh the nameplate charge in

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Yes sir...some more info would be awesome....what brand of ice maker? Air or water cooled? What's ur ambient?
Define "not good ice" that can mean a million things....only the bottom half making ice?
We will be more able to help u with lots more info. Also model and serial would be nice...
Remember never guess the charge on an ice machine. Pull and weigh the charge and verify and always weigh the nameplate charge in

To add onto what he said, there is a dependent relationship between pressures and temperatures so they need to be documented at the same time with high levels of accuracy. If it's an air cooled machine the condenser is wrapped in a carpet of lint and dust, it should be cleaned or you can get a reading that is not reasonable for the given temperature.

 

More info, yes. A quick search did not reveal a mfg website, either.

Here is a converter. We speak psi here for pressure.

http://convertmpatopsi.com/kpa/convert-kPa-to-psi.html

 

generally ice is made from 50 to 30 psi with 250 head. very very general because like they said, we have no info.....

 

whenever you have to empty a system , get in the habbit of adding a high side port

 

You can't effectively get the refrigerant out of the systems anyways from the low side especially if the capillary is blocked. The refrigerant is all pumped down into the high side and even if it appears like system is evacuated and empty, it will vent the full charge the second you open the high and cause environmental damage and such things. It's like a system with permanently shut LLSV. The entire charge is trapped in between the discharge valve and obstruction. I would advise using a pair of recovery pliers on the spot you want to install the high port. Recover from both sides and braze on a service valve over the hole made by the pliers.