Daikin VRV 5-S Series - 19.8 Checking Refrigerant Leaks After Charging

19 | Charging refrigerant
Installer and user reference guide
100
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
19.8 To check for refrigerant leaks after charging
All field made refrigerant joints must be tested for tightness.
No leak shall be detected with a test method that has a sensitivity of 5 grams
refrigerant per year or better, at a pressure of at least 0.25 times the maximum
working pressure (see "PS High" on the unit name plate).
In case a leak is detected, recover the refrigerant and repair the joint(s).
Then:
▪ perform the leak tests see "18.3.4To perform a leak test"[490].
▪ charge refrigerant.
▪ check for refrigerant leaks after charging (see above).