Mitsubishi Electric PUZ-HWM140VHA Service Manual page 9

2-6. Minimum installation area
If you unavoidably install a unit in a space where all four sides are blocked or there are depressions, confirm that one of
these situations (A, B or C) is satisfied.
Note: These countermeasures are for keeping safety not for specification guarantee.
A) Secure sufficient installation space (minimum installation area Amin).
Install in a space with an installation area of Amin or more, corresponding to refrigerant amount M (factory-charged
refrigerant + locally added refrigerant).
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
B) Install in a space with a depression height of [ 0.125 [m].
Height from the bottom of
0.125 [m] or less
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
Width W 0.9 [m] or more
OCH748
Amin [m²]
12
17
23
28
34
39
45
50
56
62
67
73
78
84
Height from the bottom
0.125 [m] or less
9
Amin
Height from the bottom of
0.125 [m] or less
Height H 0.15 [m] or more