Table of Contents
Advertisement
19
|
Charging refrigerant
19 Charging refrigerant
In this chapter
19.1 Precautions when charging refrigerant
Installer and user reference guide
108
19.1
Precautions when charging refrigerant ................................................................................................................................. 108
19.2
About charging refrigerant..................................................................................................................................................... 109
19.3
About the refrigerant ............................................................................................................................................................. 109
19.4
To determine the additional refrigerant amount .................................................................................................................. 110
19.5
To charge refrigerant.............................................................................................................................................................. 112
19.6
Error codes when charging refrigerant .................................................................................................................................. 114
19.7
To fix the fluorinated greenhouse gases label....................................................................................................................... 114
19.8
To check refrigerant piping joints for leaks after charging refrigerant ................................................................................. 115
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
General safety precautions
▪
Preparation
WARNING
▪
Only use R32 as refrigerant. Other substances may cause explosions and
accidents.
▪
R32 contains fluorinated greenhouse gases. Its global warming potential (GWP)
value is 675. Do NOT vent these gases into the atmosphere.
▪
When charging refrigerant, ALWAYS use protective gloves and safety glasses.
NOTICE
If the power of some units is turned off, the charging procedure cannot be finished
properly.
NOTICE
Turn ON the power 6 hours before operation in order to have power running to the
crankcase heater and to protect the compressor.
NOTICE
If operation is performed within 12 minutes after the indoor and outdoor units are
powered on, the compressor will not operate before the communication is
established in a correct way between outdoor unit(s) and indoor units.
NOTICE
Before starting charging procedures, check if the 7-segment display indication of the
outdoor unit A1P PCB is as normal (see
malfunction code is present, see
4
codes" [
159].
NOTICE
Make sure all connected indoor units are recognised (see setting [1-10] in
"21.1.6 Mode 1: monitoring
"21.1.3 To access mode 1 or
"25.3 Solving problems based on error
4
settings" [
133]).
4
2" [
131]). If a
RXYSA8~12AMY1B
VRV 5-S system air conditioner
4P752782-1A - 2024.02
Advertisement
Table of Contents
Troubleshooting
