Precautions When Charging Refrigerant - Daikin RXYSA4A7V1B Installer And User Manual

19 | Charging refrigerant

19.3 Precautions when charging refrigerant

Installer and user reference guide
94
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
Be sure to 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" [ 145].
NOTICE
Make sure all connected indoor units are recognised (setting [1‑10]).
NOTICE
Close the front panel before any refrigerant charge operation is executed. Without
the front panel attached the unit cannot judge correctly whether it is operating
properly or not.
NOTICE
In case of maintenance and the system (outdoor unit+field piping+indoor units) does
not contain any refrigerant any more (e.g., after refrigerant reclaim operation), the
unit has to be charged with its original amount of refrigerant (refer to the nameplate
on the unit) and the determined additional refrigerant amount.
"22.2.4 To access mode 1 or
"26.3 Solving problems based on error
VRV 5-S system air conditioner
4
2" [ 119]). If a
RXYSA4~6A7V/Y1B
4P600330-1A – 2020.07