17
|
Charging refrigerant
Installer and user reference guide
121
LREN8~12A7 + LRNUN5A7
CO₂ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
4
When the refrigerant is charged, fully open all gas and liquid stop valves.
WARNING
After charging refrigerant, keep the power supply and operation switch of the
outdoor unit ON to avoid a pressure increase on the low pressure (suction piping)
side and to avoid pressure increase on the pressure side of the liquid receiver.
INFORMATION
After charging, add the total amount of refrigerant to the refrigerant charge label.
See
"17.6 To fix the refrigerant charge label"
17.6 To fix the refrigerant charge label
1
Fill in the label as follows:
kg
RXXX
GWP: XXX
a
b
a
Total refrigerant charge
b
GWP value of the refrigerant
GWP = Global Warming Potential
2
Fix the label on the outdoor unit near the nameplate.
