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Page 3
Table.1-1
Table.1-2
R32
R290
Refrigerant
Type
Installation
Height H0(m)
LFL(kg/m )
3
Floor Area (m )
2
0.306
0.038
0.6
1.0
1.8
2.2
0.6
1.0
1.8
2.2
4
0.68
1.14
2.05
2.50
7
0.90
1.51
2.71
3.31
10
1.08
1.80
3.24
3.96
15
1.32
2.20
3.97
4.85
20
1.53
2.54
4.58
5.60
30
1.87
3.12
5.61
6.86
50
2.41
0.05
0.07
0.08
0.10
0.11
0.14
0.18
0.08
0.11
0.13
0.16
0.19
0.23
0.30
0.15
0.20
0.24
0.29
0.34
0.41
0.53
0.18
0.24
0.29
0.36
0.41
0.51
0.65
4.02
7.24
8.85
Max Refrigerant Charge (kg)
R32
LFL(kg/m )
3
Charge Amount
in kg
0.306
R290
0.038
0.6
1.0
1.8
2.2
0.6
1.0
1.8
2.2
1.224kg 1.836kg
29
10
3
2
2.448kg
51
19
6
4
3.672kg
116
42
13
9
4.896kg
206
74
23
15
6.12kg
321
116
36
24
7.956kg
0.152kg 0.228kg 0.304kg 0.456kg 0.608kg 0.76kg 0.988kg
543
82
146
328
584
912
1541
30
53
118
210
328
555
9
16
36
65
101
171
6
11
24
43
68
115
196
60
40
Min. Room Area (m )
2
Minimum Room Area (
m
)
2
Refrigerant
Type
Installation
Height H0(m)
The maximun charge in a room and the required minumum floor area to install an
applicance, please refer to the “Owner’s Manual & Installation Manual” of the unit.
For specific information on the type of gas and the amount, please refer to the relevant label
on the unit itself
NOTE 1
This formula cannot be used for refrigerants lighter than 42 kg/kmol.
NOTE 2
Some examples of the results of the calculations according to the above formula are
given in Tables 1-1 and 1-2.
NOTE 3
For factory sealed appliances, the nameplate on the unit itself marked the refrigerant
charge can be used to calculate A
min
.
NOTE 4
For field charged products, calculation of A
min
can be based on the installed refrigerant
charge not to exceed the factory specified maximum refrigerant charge.
Page 9
Page 7
Table.1-1
Table.1-2
Note about Fluorinated Gasses
1.
This air-conditioning unit contains fluorinated greenhouse gasses. For specific information
on the type of gas and the amount, please refer to the relevant label on the unit itself or the
“Owner's Manual - Product Fiche ” in the packaging of the outdoor unit. (European
Union products only).
2.
Installation, service, maintenance and repair of this unit must be performed by a certified
technician.
3.
Product uninstallation and recycling must be performed by a certified technician.
4.
For equipment that contains fluorinated greenhouse gases in quantities of 5 tonnes of CO
equivalent or more, but of less than 50 tonnes of CO equivalent, If the system has a leak-
detection system installed, it must be checked for leaks at least every 24 months.
2
2
5.
When the unit is checked for leaks, proper record-keeping of all checks is strongly
recommended.
R32
Refrigerant
Type
Installation
Height H0(m)
LFL(kg/m )
3
Floor Area (m )
2
0.306
0.6
1.0
1.8
2.2
4
0.68
1.14
2.05
2.50
7
0.90
1.51
2.71
3.31
10
1.08
1.80
3.24
3.96
15
1.32
2.20
3.97
4.85
20
1.53
2.54
4.58
5.60
30
1.87
3.12
5.61
6.86
50
2.41
4.02
7.24
8.85
Max Refrigerant Charge (kg)
R32
LFL(kg/m )
3
Charge Amount
in kg
0.306
0.6
1.0
1.8
2.2
1.224
1.836
29
10
3
2
2.448
51
19
6
4
3.672
116
42
13
9
4.896
206
74
23
15
6.12
321
116
36
24
7.956
543
196
60
40
Min. Room Area (m )
2
Minimum Room Area (
m
)
2
Refrigerant
Type
Installation
Height H0(m)
Page 8
CAUTION
CAUTION
CAUTION
This symbol shows that a service personnel should be handling this
equipment with reference to the installation manual.
This symbol shows that information is available such as the operating
manual or installation manual.
This symbol shows that this appliance uses a flammable refrigerant. If the
refrigerant is leaked and exposed to an external ignition source, there is a
risk of fire.
This symbol shows that the operation manual should be read carefully.
WARNING
CAUTION
Explanation of symbols displayed on the indoor unit or outdoor unia
(applicable to the unit adopts R32/R290 Refrigerant only):