iAIRE, LLC
53
SHVAC
Residential Mini-Split and Mounting Kit I/O/M
9k - 24k Installation and Maintenance (cont’d)
Air Conditioner Service Manual
23
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
max
or A
min
, 1.8 m for wall mounted;
Table GG.1 - Maximum charge (kg)
Category
LFL
(kg/m3)
h0
(m)
Floor area (m
2
)
Maximum charge (kg)
4
7
10
15
20
30
50
R290
0.038
0.6
0.05
0.07
0.08
0.1
0.11
0.14
0.18
1
0.08
0.11
0.03
0.06
0.09
0.2
0.3
1.8
0.15
0.2
0.24
0.29
0.34
0.41
0.53
2.2
0.18
0.24
0.29
0.36
0.41
0.51
0.65
R32
0.306
0.6
0.68
0.9
1.08
1.32
1.53
1.87
2.41
1
1.14
1.51
1.8
2.2
2.54
3.12
4.02
1.8
2.05
2.71
3.24
3.97
4.58
5.61
7.254
2.2
2.5
3.31
3.96
4.85
5.6
6.86
8.85
Table GG.2 - Minimum room area (m2)
Category
LFL
(kg/m3)
h0
(m)
Charge amount (M) (kg)
Minimum room area (m2)
R290
0.038
0.152kg 0.228kg 0.304kg 0.456kg 0.608kg 0.76kg 0.988kg
0.6
/
82
146
328
584
912
1514
1
/
30
53
118
210
328
555
1.8
/
9
16
36
65
101
171
2.2
/
6
11
24
43
68
115
R32
0.306
1.224kg 1.836kg 2.448kg 3.672kg 4.896kg 6.12kg 7.956kg
0.6
/
29
51
116
206
321
543
1
/
10
19
42
74
116
196
1.8
/
3
6
13
23
36
60
2.2
/
2
4
9
15
24
40
Caution:
Please contact the nearest after-sale service center when maintenance is necessary. At the time of
maintenance, the maintenance personnel must strictly comply with the Operation Manual provided by the
corresponding manufacturer and any non-professional is prohibited to maintain the air conditioner.
It is necessary to comply with the provisions of gas-related national laws and regulations.
It is necessary to clear away the refrigerant in the system when maintaining or scrapping an air
conditioner.
When filling the combustible refrigerant, any of your rude operations may cause serious injury or injuries
to human body or bodies and object or objects.
A leak test must be done after the installation is completed.
It is a must to do the safety inspection before maintaining or repairing an air conditioner using combustible
refrigerant in order to ensure that the fire risk is reduced to minimum.
1) Installation Safety
Installation Safety Principles
Site Safety
Open Flames Prohibited Ventilation Necessary
