Table of Contents
Table I – Maximum refrigerant charge allowed in a room
Maximum refrigerant charge in a room
A
(m
2
)
room
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
•
For H values lower than 0.6m, the value of H is considered as 0.6m
to comply to IEC 60335-2-40:2018 Clause GG2.
•
For intermediate A
room
lower A
value from the table is considered.
room
Example:
For A
= 10.5 m
2
, the value that corresponds to
room
" A
2
= 10 m
" is considered.
room
4
( m
) (kg)
max
H =0.6m
0.138
0.276
0.414
0.553
0.691
0.829
0.907
0.970
1.028
1.084
1.137
1.187
1.236
1.283
1.328
1.371
1.413
1.454
1.494
1.533
1.571
1.608
1.644
1.679
1.714
1.748
1.781
1.814
1.846
1.877
1.909
1.939
1.969
1.999
2.028
2.057
2.085
2.113
2.141
2.168
2.195
2.221
2.248
2.274
values, the value that corresponds to the
Table II – Minimum floor area
m
(kg)
c
1.84
1.86
1.88
1.90
1.92
1.94
1.96
1.98
2.00
2.02
2.04
2.06
2.08
2.10
2.12
2.14
2.16
2.18
2.20
2.22
2.24
2.26
2.27
•
For H values lower than 0.6m, the value of H is considered as 0.6m to
comply to IEC 60335-2-40:2018 Clause GG2.
•
For intermediate m
values, the value that corresponds to the higher
c
m
value from the table is considered.
c
Example:
If m
= 1.85 kg, the value that corresponds to " m
c
•
Systems with total refrigerant charge lower than 1.84 kg are not
subjected to any room area requirements.
•
Charges above 2.27 kg are not allowed in the unit.
Table III – Minimum venting opening area for natural ventilation
m
m
m
c
max
excess
m
- m
(kg)
(kg)
c
2.27
0.1
2.17
2.27
0.3
1.97
2.27
0.5
1.77
2.27
0.7
1.57
2.27
0.9
1.37
2.27
1.1
1.17
2.27
1.3
0.97
2.27
1.5
0.77
2.27
1.7
0.57
2.27
1.9
0.37
•
For H values lower than 0.6m, the value of H is considered as 0.6m to
comply to IEC 60335-2-40:2018 Clause GG2.
•
For intermediate m
values, the value that corresponds to the higher
excess
m
value from the table is considered.
excess
Example:
m
= 1.45 kg, the value that corresponds to " m
excess
Minimum floor area
( A
(m
2
))
min total
H =0.6m
28.81
29.44
30.08
30.72
31.37
32.03
32.70
33.37
34.04
34.73
35.42
36.12
36.82
37.53
38.25
38.98
39.71
40.45
41.19
41.94
42.70
43.47
43.86
= 1.86 kg" is considered.
c
Minimum venting
opening area
(kg) =
( VA
) (cm
min
max
H =0.6m
878
797
716
635
570
538
485
414
326
224
= 1.6 kg" is considered.
excess
)
2
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