11
OCH737
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.
■ Indoor units
Install in a room with a floor area of Amin or more, corresponding to refrigerant quantity M (factory-charged refrig-
erant + locally added refrigerant).
* For the factory-charged refrigerant amount, refer to the spec nameplate or installation manual.
For the amount to be added locally, refer to the installation manual.
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
For floor standing (PSA-M): 0 m
* There are restrictions in installation height for each model, so read the installation manual for the particular unit.
75% or more opening
Width W 0.9 [m] or more
Height from the bottom
0.125 [m] or less
Height H 0.15 [m] or more
M [kg]
Amin [m²]
1.0
4
1.5
6
2.0
8
2.5
10
3.0
12
3.5
14
4.0
16
4.5
20
5.0
24
5.5
29
6.0
35
6.5
41
7.0
47
7.5
54
8.0
62
8.5
69
9.0
78
9.5
87
Wall mounted
h0
]
1.8 [m]
Ceiling concealed
Cassette
Ceiling suspended
h0
]
2.2 [m]
h0
]
2.2 [m]
h0
]
2.2 [m]
Case 1: for wall mounted, ceiling suspended, cassette and concealed
