Precautions When Charging Refrigerant; To Determine The Additional Refrigerant Amount - Daikin 3MXM40A2V1B9 Installer's Reference Manual

8 | Charging refrigerant

8.3 Precautions when charging refrigerant

8.4 To determine the additional refrigerant amount

Installer reference guide
46
NOTICE
Applicable legislation on fluorinated greenhouse gases requires that the refrigerant
charge of the unit is indicated both in weight and CO
Formula to calculate the quantity in CO
refrigerant × total refrigerant charge [in kg]/1000
Contact your installer for more information.
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...
≤30 m
>30 m
INFORMATION
Piping length is the one-way length of liquid piping.
INFORMATION
Additional refrigerant charge is NOT allowed in case of combination of the outdoor
unit 3MXM40 or 3MXM52 with the indoor units CVXM-A and/or FVXM-A. The total
piping length MUST be ≤30 m.
CVXM-A9, FVXM-A9 is without this limitation
Maximum allowable refrigerant charge amount
3MXM40, 3MXM52
3MXM68, 2MXM68
4MXM68
4MXM80
5MXM90
equivalent tonnes: GWP value of the
2
4
precautions" [ 7]
4
piping" [ 32]
Do NOT add additional refrigerant.
R=(total length (m) of liquid piping–30 m)×0.020
R=Additional charge (kg) (rounded in units of 0.1 kg)
equivalent.
2
Then...
2.2 kg
2.4 kg
2.6 kg
3.2 kg
3.3 kg
2MXM-A9, 3MXM-A9, 4MXM-A9, 5MXM-A9
R32 Split series
4P600463-7G – 2022.09