Loading ...
Loading ...
Loading ...
Due to our policy of continuous product innovation, some specications may change without notication.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
58 | FOUR-WAY CASSETTE
Four-Way Ceiling Cassette System Engineering Manual
Outdoor Unit
PLACEMENT CONSIDERATIONS
Tie-Downs / Wind Restraints and Lightening Protection
The strength of the Four-Way Ceiling Cassette system outdoor unit frame is adequate
to be used with field-provided wind restraint tie-downs.
Tie-Downs / Wind Restraints
• The strength of the roof must be checked before installing the outdoor units.
• If the installation site is prone to high winds or earthquakes, when installing on the
wall or roof, securely anchor the mounting base using a field-provided tie-down con-
figuration approved by a local professional engineer.
• The overall tie-down configuration must be approved by a local professional engineer.
Always refer to local code when using a wind restraint system.
Lightening Protection
• To protect the outdoor unit from lightning, it should be placed within the specified
lightning safety zone.
• Power cable and communication cable should be installed five (5)
feet away from lightning rod.
• A high-resistance ground system should be included to protect
against induced lightning or indirect strike.
Ground
Safe zone
Lightning rod
Protection Angle (25˚~55˚)
1.5m
5 feet
Lightning rod
Figure 36: Lightening Protection Diagram.
Table 33: Safety Zone Specications.
Building Height (feet)
66 98 148 197
Protection Angle (˚)
55 45 35 25
If the building does not include lightning protection, the outdoor unit
may be damaged from a lightening strike. Inform the customer of
this possibility in advance.
General Mounting
Securely attach the outdoor unit to a condenser pad, base rails, or other mounting platform
that is securely anchored to the ground or building structure. The underlying structure or
foundation must be designed to support the weight of the unit, and avoid placing the outdoor
unit in a low lying area where water may accumulate.
Attaching the Outdoor Unit to the Bracket
When installing the outdoor unit on a wall or roof top, anchor the mounting base securely
using nails or wire with regard to wind and earthquake or vibration.
Refer to installation manual, and follow the applicable local code for clearance, mounting,
anchor, and vibration attenuation requirements.
Figure 37: Bracket Mounting.
• All referenced materials are to be field-supplied.
• Images are not to scale.
Loading ...
Loading ...
Loading ...