37
INSTALLATION OF INDOOR UNIT
ENGLISH
• Two ventilation openings, one at bottom, another at top, for ventilation purposes are made
between room A and room B.
• Bottom opening :
- Must comply to the minimum area requirement of AV
min
.
- Opening must be located 300mm from the floor.
- At least 50% of required opening area must be 200mm from the floor.
- The bottom of the opening shall not be higher than the point of release when the unit is
installed and must be situated 100mm above the floor.
- Must be as close as possible to the floor and lower than h
0
.
(h
0
=Installation height, The value of h
0
in this unit is considered as 1.2m)
• Top opening :
- The total size of the Top opening must be more than 50% of AV
min
- Opening must be located 1500mm above the floor.
• The height of the openings between the wall and floor which connect the rooms are not less
than 20 mm.
• Ventilation openings to the outside are NOT considered suitable ventilation openings (the user
can block them when it is cold).
Table 1 - Maximum refrigerant charge allowed in a room
Ventilation requirements
A
room
(m
2
)
Maximum refrigerant charge in a room m
max
(kg)
Based on h
0
1.2m
1
0.28
2
0.55
3
0.83
4
1.11
5
1.38
6
1.66
7
1.81
8
1.94
9
2.06
10
2.17
11
2.27
12
2.37
13
2.47
14
2.57
15
2.66
16
2.74
NOTE
• The value of "Release height (h
0
)“ in this unit is considered 1200 mm to comply to IEC
60335-2-40:2013 A1 2016 Clause GG2.
• For intermediate A
room
values, the value that corresponds to the lower A
room
value from the
table is considered. (If A
room
=10.5 m
2
, consider the value that corresponds to A
room
=10 m
2
.)