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C) Create an appropriate ventilation open area.
Make sure that the width of the open area is 0.9 [m] or more and the height of the open area is 0.15 [m] or more.
However, the height from the bottom of the installation space to the bottom edge of the open area should be 0.125 [m] or less.
Open area should be 75% or more opening.
75% or more opening
1-4-2. Minimum installation area for Indoor units
Install in a room with a floor area of Amin or more, corresponding to refrigerant quantity M (factory-charged refrigerant + locally added refrigerant).
Install the indoor unit so that the height from the floor to the bottom of the indoor unit is h0;
for wall mounted: 1.8 m or more;
for ceiling suspended, cassette and ceiling concealed: 2.2 m or more.
When installing floor standing, refer to indoor unit Installation manual.
There are restrictions in installation height for each model, so read the installation manual for the particular unit.
M [kg]
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
h0 ] 2.2 [m]
Ceiling suspended
En-4
Width W 0.9 [m] or more
Amin [m²]
3
4.5
6
7.5
9
12
15.5
20
24
29
35
41
47
54
h0 ] 2.2 [m]
Height H 0.15 [m] or more
Height from the bottom
0.125 [m] or less
Cassette
h0 ] 1.8 [m]
Wall mounted
h0 ] 2.2 [m]
Ceiling concealed
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