LG A2UW18GFAC Manual page 161

MULTI
2. Select the Best Location
Select space for installing outdoor unit, which will meet the following conditions:
• No direct thermal radiation from other heat sources.
• No possibility of annoying neighbors due to noise of unit.
• No exposition to strong wind.
• Place with strength which bears weight of unit.
• Note that drain flows out of unit when heating mode operation (except for Cooling only model).
• Because of the possibility of fire, do not install unit to the space where generation, inflow, stagnation, and
leakage of combustible gas is expected.
• Avoid unit installation in a place where acidic solution and spray (sulfur) are often used.
• Do not use unit under any special environment where oil, steam and sulfuric gas exist.
• It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the
outdoor unit.
• If installation site is area of heavy snowfall, then the following directions should be observed.
– Make the foundation as high as possible.
– Fit a snow protection hood.
• Select installation location considering following conditions to avoid bad condition when additionally performing
defrost operation.
– Install the outdoor unit at a place well ventilated and having a lot of sunshine in case of installing the product
at a place with a high humidity in winter (near beach, coast, lake, etc).
(Ex) Rooftop where sunshine always shines.
– Performance of heating will be reduced and pre-heat time of the indoor unit may be lengthened in case of
installing the outdoor unit in winter at following location:
» Shade position with a narrow space.
» Location with much moisture in neighboring floor.
» Location with much humidity around.
It is recommended to install the outdoor unit at a place with a lot of sunshine as possible as.
» Location where liquid gathers since the floor is not even.
» When installing the outdoor unit in a place that is constantly exposed to a strong wind like a coast or on a
high story of a building, secure a normal fan operation by using a duct or a wind shield.
 Cautions corresponding to strong/seasonal wind
• When the"Outdoor unit of Side Discharge Type" is installed in a place that is constantly exposed to a strong wind
like a coast or on a high story of a building, secure a normal fan operation by using a duct or a wind shield.
– Don't install the suction hole and discharge hole of the Outdoor unit facing the seasonal wind.
– Install the unit so that its discharge port faces to the wall of the building.
Keep a distance 500mm or more between the unit and the wall surface.
– Supposing the wind direction during the operation season of the air conditioner, install the unit so that the
discharge port is set at right angle to the wind direction.
 Cautions in winter
• Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated
well.
• Get ready for seasonal wind or snow in winter even in other areas.
• Install a suction and discharge duct not to let in snow or rain.
• Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction
hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system.
• Where snow accumulated on the upper part of the Outdoor Unit, always remove snow for operation.
• If width of the frame is wider than that of the product, snow may accumulate. So, its width shall not exceed the
width of the product.
Installation of Outdoor Units
5