Placement Considerations - LG LS091HSV3 Engineering Manual

PLACEMENT CONSIDERATIONS

Outdoor Unit Installation
General Mounting
Securely attach the outdoor unit to a condenser pad, base rails, or
another mounting platform that is securely anchored to the ground
or building structure. Attach the outdoor unit with a bolt and nut on
a concrete or rigid mount. See Figure 26. Refer to the applicable
installation manual and follow applicable local codes for clearance,
mounting, anchor and vibration attenuation requirements.
All referenced materials are to be field-supplied. Images are not to
scale..
Mounting Platform
The underlying structure or foundation must be designed to sup-
port the weight of the unit. Avoid placing the unit in a low lying area
where water may accumulate. When installing the outdoor unit on
the wall, or roof top, anchor the mounting base securely to account
for wind, earthquake or vibration.
Tie-Downs and Wind Restraints
The strength of the Duct-free Split Single Zone Inverter system
frame is adequate to be used with field-provided wind restraint tie-
downs. The overall tie-down configuration must be approved by a
local professional engineer. Always refer to local code when design-
ing a wind restraint system.
Snow and Ice Conditions
In climates that experience snow build-up, place the unit on a raised
platform to ensure condenser airflow. The raised support platform
must be high enough to allow the unit to remain above possible snow drifts. Mount the unit on a field-provided snow stand at a minimum
height that is equal to the average annual snowfall plus 20 inches. Design the mounting base to prevent snow accumulation on the platform
in front or back of the unit case. If necessary, provide a field fabricated hood to keep snow and ice and/or drifting snow from accumulating on
the coil surfaces. Use inlet and discharge duct or hoods to prevent snow or rain from accumulating on the fan inlet and outlet guards. Best
practice prevents snow from accumulating on top of the unit. Consider tie-down requirements in case of high winds or where required by
local codes.
When deciding on a location to place the outdoor unit, be sure to choose an area where run-off from defrost will not accumulate and freeze on
sidewalks or driveways.
Ambient Air Conditions
Avoid exposing the outdoor unit to steam, combustible gases, or other corrosive elements. Avoid exposing the unit to discharge from boiler
stacks, chimneys, steam relief ports, other air conditioning units, kitchen vents, plumbing vents, and other sources of extreme temperature,
gases, or substances that may degrade performance or cause damage to the unit.
When installing multiple outdoor units, avoid placing units where the discharge of one outdoor unit will blow into the inlet side of an adjacent
unit.
60 | APPLICATION GUIDELINES
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Figure 26: Outdoor Unit Mounting Methods
Bolt
Placement
& Anti-Vibration
Pad
Foundation
Top of Unit
Piping Connection