Check cooling unit valve group / cooling plate for tightness, evacuate and charge refrigerant

Check for tightness.
Check the refrigerant circuit (assembly) for tightness, as a whole or in parts, according to EN378-2 (or other applicable equivalent safety standards). For this, create an excess pressure, preferably using dried nitrogen. Observe test pressures and safety reference:

Risk of bursting due to excessive pressure!

The pressure applied during the test must never exceed the maximum permitted values!

Test pressure: 1.1-fold of the maximum allowable pressure (see name plate). Make a distinction between the high pressure and low pressure sides!