19 | Charging refrigerant
Installer and user reference guide
92
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1 – 2020.01
19 Charging refrigerant
In this chapter
19.1 About charging refrigerant..................................................................................................................................................... 92
19.2 About the refrigerant ............................................................................................................................................................. 93
19.3 Precautions when charging refrigerant ................................................................................................................................. 94
19.4 To determine the additional refrigerant amount .................................................................................................................. 96
19.5 To charge refrigerant.............................................................................................................................................................. 97
19.6 Error codes when charging refrigerant .................................................................................................................................. 99
19.7 To fix the fluorinated greenhouse gases label ....................................................................................................................... 99
19.8 To check for refrigerant leaks after charging......................................................................................................................... 100
19.1 About charging refrigerant
The outdoor unit is factory charged with refrigerant, but depending on the field
piping you have to charge additional refrigerant.
Before charging refrigerant
Make sure the outdoor unit's external refrigerant piping is checked (leak test,
vacuum drying).
Typical workflow
Charging additional refrigerant typically consists of the following stages:
1 Determining how much you have to charge additionally.
2 Charging additional refrigerant (pre-charging and/or charging).
3 Filling in the fluorinated greenhouse gases label, and fixing it to the inside of
the outdoor unit.
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