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install your air conditioner in a room with an appropriate area and use it correctly.
Compared with ordinary refrigerants, Refrigerants R32 & R290 are environmentally friendly and do not
destroy the ozone sphere and that their values of greenhouse effect are also very low.
2) R32/R290 air conditioner installation area requirement
3
m1=(4m
)×LFL, m2=(26m
Where LFL is the lower flammable limit in kg/m
For the appliances with a charge amount m1<M<m2:
The maximum charge in a room shall be in accordance with the flowing: M
The required minimum floor area A
accordance with following: A
Where:
M
is the allowable maximum charge in a room, in kg;
max
M is the refrigerant charge amount in appliance, in kg;
A
is the required minimum room area, in m2;
min
A is the room area, in m2;
LFL is the lower flammable limit, in kg/m3;
h0 is the installation height of the appliance, in meters for calculating M
LFL
Category
(kg/m3)
R290
0.038
R32
0.306
LFL
Category
(kg/m3)
R290
0.038
R32
0.306
TCL Air Conditioner Service Manual
3
) ×LFL, m3=(130m
to install an appliance with refrigerant charge M(kg) shall be in
min
= (M/ (2.5 x (LFL)
min
Table GG.1 - Maximum charge (kg)
h0
(m)
4
0.6
0.05
1
0.08
1.8
0.15
2.2
0.18
0.6
0.68
1
1.14
1.51
1.8
2.05
2.71
2.2
2.5
3.31
Table GG.2 - Minimum room area (m2)
h0
(m)
0.152kg 0.228kg 0.304kg 0.456kg 0.608kg
0.6
/
82
1
/
30
1.8
/
9
2.2
/
6
1.224kg 1.836kg 2.448kg 3.672kg 4.896kg
0.6
/
29
1
/
10
1.8
/
3
2.2
/
2
3
) ×LFL
3
, R290 LFL is 0.038kg/m
(5/4)
0
x h
)) 2
Floor area (m
Maximum charge (kg)
7
10
15
0.07
0.08
0.1
0.11
0.03
0.06
0.2
0.24
0.29
0.24
0.29
0.36
0.9
1.08
1.32
1.8
2.2
3.24
3.97
3.96
4.85
Charge amount (M) (kg)
Minimum room area (m2)
146
328
53
118
16
36
11
24
51
116
19
42
6
13
4
9
3
, R32 LFL is 0.306kg/m
(5/4)
=2.5×(LFL)
max
or A
, 1.8 m for wall mounted;
max
min
2
)
20
30
0.11
0.14
0.09
0.2
0.34
0.41
0.41
0.51
1.53
1.87
2.54
3.12
4.58
5.61
7.254
5.6
6.86
0.76kg
0.988kg
584
912
1514
210
328
65
101
43
68
6.12kg
7.956kg
206
321
74
116
23
36
15
24
3
.
1/2
×h
×A
0
50
0.18
0.3
0.53
0.65
2.41
4.02
8.85
555
171
115
543
196
60
40
18
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