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IMPORTANT NOTICE
* Release h
=1.3m
0
Minimum opening for natural ventilation A
m
(kg)
c
7
10
13
1.84
-
-
-
2.0
0.10
-
-
2.2
0.67
-
-
2.4
1.24
0.16
-
2.6
1.81
0.79
-
2.8
2.38
1.41
0.41
3.0
2.95
2.03
1.08
3.2
3.52
2.66
1.74
3.4
4.09
3.28
2.41
3.6
4.66
3.90
3.07
3.8
5.23
4.53
3.74
4.0
5.80
5.15
4.40
4.2
6.37
5.77
5.07
4.4
6.94
6.40
5.74
* Release height h
=1.5m
0
Minimum opening for natural ventilation A
m
(kg)
c
7
10
13
1.84
-
-
-
2.0
-
-
-
2.2
-
-
-
2.4
0.36
-
-
2.6
0.89
-
-
2.8
1.42
0.27
-
3.0
1.95
0.85
-
3.2
2.48
1.43
0.35
3.4
3.01
2.01
0.97
3.6
3.54
2.59
1.59
3.8
4.07
3.17
2.21
4.0
4.60
3.75
2.83
4.2
5.13
4.33
3.44
4.4
5.66
4.91
4.06
* Release height h
=1.7m
0
Minimum opening for natural ventilation A
m
(kg)
c
7
10
1.84
-
-
2.0
-
-
2.2
-
-
2.4
-
-
2.6
0.08
-
2.8
0.58
-
3.0
1.08
-
3.2
1.57
0.36
3.4
2.07
0.90
3.6
2.57
1.45
3.8
3.07
1.99
4.0
3.57
2.54
4.2
4.07
3.08
4.4
4.57
3.63
* The minimum opening area for natural ventilation between
room A and room B is calculated by the following formula:
A
=1.51×(m
nv,min1
m
=0.571×h
max
(dm
2
) h
=1.3m
nv,min
0
A
(m
2
)
roomA
15
18
20
23
25
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.43
-
-
-
-
1.12
0.18
-
-
-
1.81
0.90
0.30
-
-
2.50
1.63
1.04
0.15
-
3.19
2.35
1.78
0.92
0.35
3.88
3.07
2.52
1.69
1.13
4.57
3.79
3.26
2.46
1.91
5.26
4.51
4.00
3.22
2.70
(dm
) h
=1.5m
2
nv,min
0
A
(m
2
)
roomA
15
18
20
23
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.27
-
-
-
0.91
-
-
-
1.55
0.56
-
-
2.19
1.23
0.59
-
2.83
1.90
1.28
0.33
3.48
2.57
1.97
1.04
(dm
2
) h
=1.7m
nv,min
0
A
(m
)
2
roomA
13
15
18
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.29
-
-
0.87
0.12
-
1.46
0.73
-
2.04
1.33
0.26
2.62
1.93
0.89
^(1/2)
-m
)×(A
/m
)
c
max
roomA
max
^1/2
×(A
)
0
roomA
where
A
: minimum opening for natural ventilation between
nv,min1
room A and room B, in dm
A
: room A area, in m
30
roomA
-
m
: the allowable maximum refrigerant charge in the room
max
-
A, in kg.
-
* Mark "-" in the above table indicates that the room A is large
-
enough for installation without adjacent room B.
-
* For intermediate refrigerant charges, room A area and
-
installation height, select the higher charge value, the
-
smaller room area and the lower height value to choose
-
the A
-
nv,min1
-
room A area is 8m
-
then A
-
h
=1.7m).
0
0.55
● Type 3
1.37
If type 1 and type 2 cannot be selected for install the indoor
unit, a non-occupied space room C shall be provided for
installation. The indoor unit can be installed in the room
C with 2 natural ventilation openings to outdoor, and no
requirement to the minimum room area. Installation type 3
25
-
is shown below.
-
-
-
-
-
-
-
-
-
-
The reference minimum opening area Anv,min2 for natural
-
ventilation from room C to outdoors are as shown in the
-
0.43
following table.
20
-
-
-
-
-
-
-
-
-
-
-
-
-
* The minimum opening for natural ventilation from room C to
0.19
outdoors is calculated by the following formula:
where
A
nv,min2
to outdoors, in dm
* For intermediate refrigerant charges, select the higher
charge value choose the A
refrigerant charge is 2.9kg, then A
4
2
.
2
.
. For example, if the refrigerant charge is 2.9kg,
2
and the installation height is 1.85m,
2
=1.08dm
according to the table (Release height
nv,min1
Minimum opening for natural ventilation
m
(kg)
c
1.84
2
2.2
2.4
2.6
2.8
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
^(1/2)
A
=5.05×m
nv,min2
c
: minimum opening for natural ventilation from room C
2
.
For example, if the
nv,min2.
nv,min2
A
(dm²)
nv,min2
6.85
7.14
7.49
7.82
8.14
8.45
8.75
9.03
9.31
9.58
9.84
10.10
10.35
10.59
2
=8.75dm
.
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