Cruising Sailors Forum Archive

How to determine correct amount of R134a refrigerant in a system

We have an engine driven, cold plate, fridge and freezer.
The books say that we should add refrigerant until there are no bubbles in the sight glass when the system has pulled temperature down to the desired level
We have bubbles all the time, and a refrig tech says that is OK

If I add refrigerant, how can I tell if I have enough.
How to know if the system is overcharged ?

Messages In This Thread