Precautions When Charging Refrigerant; To Determine The Additional Refrigerant Amount; 2(A)Mxm40+50 + 2(A)Mxf40+50; To Determine The Complete Recharge Amount - Daikin 2MXM40M4V1B Installer's Reference Manual

8 | Charging refrigerant

8.3 Precautions when charging refrigerant

8.4 To determine the additional refrigerant amount

8.5 To determine the complete recharge amount

8.6 To charge additional refrigerant

Installer reference guide
48
WARNING
NEVER directly touch any accidental leaking refrigerant. This could result in severe
wounds caused by frostbite.
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
"2 General safety
▪
"7.1 Preparing refrigerant
If the total liquid piping
length is...
≤20 m
>20 m
INFORMATION
Piping length is the one-way length of liquid piping.
INFORMATION
If a complete recharge is necessary, the total refrigerant charge is: the factory
refrigerant charge (see unit name plate) + the determined additional amount.
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.
CAUTION
To avoid compressor breakdown, do NOT charge more than the specified amount of
refrigerant.
4
precautions" [ 5]
piping" [ 4 34]
Do NOT add additional refrigerant.
R=(total length (m) of liquid piping–20 m)×0.020
R=Additional charge (kg) (rounded in units of 0.1 kg)
Then...

2(A)MXM40+50 + 2(A)MXF40+50

R32 Split series
4P600463-2C – 2020.08