LG THERMA V, Installation Manual, Page: 65 / 277

65
INSTALLATION OF INDOOR UNIT
ENGLISH
Ventilation requirements
• 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 300 mm from the floor.
- At least 50 % of required opening area must be 200 mm 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 100 mm 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 1.3 m)
• Top opening :
- The total size of the Top opening must be more than 50 % of AV
min
.
- Opening must be located 1 500 mm 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
A
room
(m
2
)
Maximum refrigerant charge in a room
m
max
(kg)
Based on h
0
1.3 m
1 0.30
2 0.60
3 0.90
4 1.20
5 1.50
6 1.80
7 1.96
8 2.10
9 2.23
10 2.35
11 2.46
12 2.57
13 2.68
14 2.78
NOTE
- The value of "Installation height (h
0
)“ in this unit is considered 1 300 mm to comply to IEC
60335-2-40:2013 A1 2016 Clause GG2.
- For intermediate A
room A
values, the value that corresponds to the lower A
room A
value from
the table is considered.
(If A
room A
=10.5 m
2
, consider the value that corresponds to A
room A
= 10 m
2
.)