LG ATNH24GPLE2 User Manual page 94

SINGLE ZONE
4. Installation of outdoor unit
n Where the obstacles on the discharge side is lower than the unit:
• No obstacle above
• Obstacle above, too
ʻLʼ should be lower than ʻHʼ.
Close the bottom of the installation frame to prevent the
discharged air from being bypassed.
4) Series installation
4.6.2 Air guide work
In case of out door unit is located outdoor cabin of apart-
ment or flats, then the efficiency can drop and system
pressure increases thus finally damaging the compressor
or other components in the system by heat short circuit.
4.6.3 Lightning safety zone
1) To protect outdoor unit from lightning, it should be placed
within lightning safety zone.
Safety zone
Building Height [ft]
Protection Angle [˚]
2) Power cable and communication cable should be 4.9ft
away from lightning rod.
3) High resistance grounded system should be performed
against induced lightning or indirect stroke.
4) If the building has no lightning protection, outdoor may be
damage from lightning. This should be informed to cus-
tomer or building owner in advance.
58 _
Heat pump 60Hz/R410A
66 98 148
55 45 35
600(23-19/32) or more
1000(39-3/8) or more
[Example]
<Without air guide>
Safety dorice activation
Lightning rod
197
25
<With air guide>
Normal operation
Lightning rod
Protection Angle (25˚~55˚)
1.5m 1.5m 1.5m
h Regarding the safety
from atmosphere
electricity, follow the
local or national reg-
ulations
Safe zone
Ground