User manual
30
Performing leak tests
LEAK TEST WITH NITROGEN (before opening valves)
In order to detect basic refrigerant leaks, before recreating the vacuum and
recirculating the R-410A, it’s responsable of installer to pressurize the whole
system with nitrogen (using a cylinder with pressure reducer) at a pressure
above 40 bar (gauge).
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into the system and create
vacuum. After opening valves check leaks using a leak detector for refrigerant
R-410A.
Once you have completed all the connections, check for possible leaks using
leak detector specically designed for HFC refrigerants.
A(Gas)
B(Liquid)
❋ The designs and shape are subject to
change according to the model.
To check for gas leaks on the Outdoor unit
Then, using a leak detector, check the Valves on sections A and B.