Air Guide Work - LG Multi V PRHR042A Installation Manual

8
Obstacle height of discharge side is lower than the unit
1. Stand alone installation
L ≤ H
2. Collective installation
L ≤ H
Seasonal wind and cautions in winter
• Sufficient measures are required in a snow areas or severe cold
areas 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 in such a way that it should not 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.
• The raised support platform must be high enough to allow the unit to
remain above possible snow drifts, and must be higher than the
maximum anticipated snowfall for the location.
• Where snow accumulated on the upper part of the Outdoor Unit by
more than 10 cm (3.9 inch), always remove snow for operation.
- Don't install the suction hole and discharge hole of the Outdoor
Unit facing the seasonal wind.
L ≤ H
L ≤ H
Unit:mm(inch)

Air guide work

In case of out door unit is located outdoor cabin of apartment 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.
• Do not use bended louver. It disturbs the air circulation.
• The opening ratio is at least 80%
• Louver angle is 0-20 degree
• Louver pitch will be as more than 100mm(3.9 inch)
• If you have a insect control net, consider the shielded area and static
pressure loss
• Check the static pressure range of outdoor unit fan.
Then, install air guide in the range of static pressure.
Intake
300mm
150mm
(5-29/32inch) (11-13/16inch) area
or more
or more
350mm 350mm 350mm
(13-25/32inch) (13-25/32inch) (13-25/32inch)
Air guide duct
or more or more or more
Air guide
Secure minimum intake area
When the intake area is not secured can efficiency drop and products
may not be operating
• Minimum intake area (For reference)
System(Ton)
Minimum intake area
Less than Less than Less than
20 degrees 20 degrees 20 degrees
Louver pitch Louver pitch Louver pitch
100 mm 100 mm 100 mm
(3-15/16inch) (3-15/16inch) (3-15/16inch)
or more or more or more
Wind speed : 1.5m/s(4.9 ft/s)
2 2
Unit : m (ft )
3, 4, 5
1.2(15.5)