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Multi V IV outdoor units are designed to operate properly in a wide
range of environmental conditions, but correct placement of the
outdoor unit is essential for maximizing unit performance. Consider
the following factors:
Mounting Platform
The underlying structure or foundation must be designed to
support the weight of the unit. Avoid placing the unit in a low lying
area where water may accumulate.
Tie-Downs and Wind Restraints
The strength of Multi V IV frames 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 designing a wind restraint system.
Ambient Air Conditions
Do not place the unit in a corrosive environment. Avoid exposing
the outdoor unit to steam, combustible gases, chimneys, steam
relief ports, other air conditioning units, kitchen vents, plumbing
vents, discharge from boiler stacks, 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 the units where discharge air from the front of one
outdoor unit is blown into the back side of an adjacent unit.
Dealing with Snow and Ice
In climates that experience snow buildup, place the unit on a raised
platform to ensure proper outdoor unit coil airflow. The raised
support platform must be high enough to allow the unit to remain
Oceanside Installation Precautions
• Avoid installing the outdoor unit where it
would be directly exposed to ocean winds.
• Install the outdoor unit on the side of the
building opposite from direct ocean winds.
• Select a location with good drainage.
• Periodically clean dust or salt particles off of
the heat exchanger with water.
Note:
Additional anti-corrosion treatment may need
to be applied to the outdoor unit at oceanside
locations.
Note:
Ocean winds may cause corrosion, particularly on the condenser and evaporator fins, which,
in turn could cause product malfunction or inefficient performance.
Ocean winds
If the outdoor unit must be placed in a
location where it would be subjected to
direct ocean winds, install a concrete
windbreaker strong enough to block
any winds. Windbreaker height and
width should be more than 150% of the
outdoor unit, and be installed at least
27-1/2 inches away from the outdoor unit
to allow for airflow.
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
Placement Considerations
above the anticipated snow accumulation level (consider snow
drifts). Design the mounting base to prevent snow accumulation on
the platform in front or back of the unit case. If necessary, use an
inlet and discharge duct or a snow hood to prevent snow or ice from
accumulating on the coil, fan blades, and fan guards. Best practice
prevents snow from accumulating on top of the unit as well. When
the system is commissioned, adjust the dip switch for "snow throw"
operation if a snow hood is not used. In all cases, the outdoor unit
supply and/or discharge duct work or hood must be designed to have
a combined air pressure drop rating that does not exceed 0.32" WG.
Note:
• When deciding on a location to place the outdoor unit, be sure
to choose an area where run-off from defrost mode will not
accumulate and freeze on sidewalks or driveways.
• Snow throw mode does not prevent ice from forming on the fan
blade or discharge grille.
Handling Outdoor Unit Condensate
While operating in heating mode, the surface temperature of the
outdoor coil may drop below the dew point of the surrounding air.
Moisture may condense on the coil fins and subsequently drain onto
the surface of the surrounding area from the bottom of the unit case.
If the designer chooses to control the flow of condensate from the
outdoor unit, install a field-provided drain pan under the unit and pipe
the condensate to a nearby drain. Mount the unit in the pan on rails
or isolation pads. If the unit will be operating near or below freezing
with a condensate drain pan installed, consider installing heat tape
in the bottom of the outdoor unit drain pan and along the condensate
drain line.
INStaLLatIoN
Ocean winds
Windbreaker
Ocean winds
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