8 | PRODUCT DATA
Single Zone W
all Mounted Extended Piping Engineering Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG ” is a registered trademark of LG Corp.
Single Zone Systems
Single zone wall mounted extended piping
systems are equipped with inverter com-
ponents that offer superior load matching
and long piping installation. The product
works for optimizing power consumption in
residential and small office buildings. Utiliz-
ing multiple indoor wall mount units each
with custom temperature controls allow for
precise temperature settings in each zone
of the building. Single zone systems allow
flexibility in interior design and complement
any decor.
Low Sound Levels
When outdoor units operate fully loaded,they
have one of the quietest sound levels in
the industry. Sound is almost undetectable
during off-peak operation. To promote a
quiet, comfortable environment, the single
zone system indoor units operate at sound
levels as low as 37 dB(A) and outdoor units
as low as 55 dB(A) at full load. LG custom-
ers often ask if the outdoor unit is running
after commissioning is complete. All rotating
components are soft-started by the control-
ler using digitally controlled inverters, which
reduce undesirable noise caused by fans
and compressors cycling on and off.
Comfort Control at Its
Best
Tight temperature control through precise
load matching maximizes the time that
the indoor units remove moisture. Unlike
traditional air conditioning control systems,
which use thermostatic controls to maintain
room temperatures, LG single zone Inverter
controls continuously adjust the indoor unit
fan speed and refrigerant flow, indirectly pro-
viding lower and more consistent humidity
levels in the conditioned space. The longer
the indoor coil temperature is below the
dew-point of the room in conjunction with air
movement across the coil, the space humid-
ity level will vary little, compared to technolo-
gies that cycle fans and compressors on and
off multiple times per hour. The outdoor unit
responds by varying the compressor speed
and outdoor fan motors as needed to main-
tain system operating pressure. As a result,
the single zone systems deliver precise
space temperature control.
Inverter Driven
The twin rotary compressors are optimized
to maximize compressor efficiency, which
reduces power consumption and monthly
utility bills. This latest inverter technology
allows single zone system outdoor units to
vary the compressor motor shaft speed to
deliver an appropriate amount of cooling to
the indoor unit. Precise refrigerant volume
delivery translates into long periods with coil
surface temperatures below dew point and
minimizes compressor and fan component
run time. Occupants remain comfortable
while utility costs are reduced.
Simplified Installation
Cooling and heating applications that use
single zone systems simplify and reduce
the mechanical and control system design
time. The designer no longer has to be
concerned with interconnecting chilled and
condenser water piping, air-distribution duct
systems,matching and selecting chillers,
towers,pumps, coils, fans, air handlers, or
Variable Air Volume (VAV) boxes.
Operating Range
Single zone systems have a nominal capac-
ity range of 2 to 2-3/4 tons (depending on
outdoor/indoor units).
Operating ranges for single zone systems:
Cooling: 14°F DB to 118°F DB
Heating: -4°F WB to 65°F WB
Installing an optional Low Ambient Wind
Baffle Kit will allow operation down to 0°F in
cooling mode for all single zone systems.
Compact Size
Single zone outdoor units have the following
footprints:
LSU243HLV, LSU303HLV, LSU363HLV
(WxHxD (in)) 34-1/4 x 31-1/2 x 12-5/8.
Fin Design with Gold-
Fin™ Coating
All single zone outdoor units are provided
with large surface coils made of copper
tubes with louvered aluminum fins designed
to maximize unit operating efficiency over a
wide range of ambient conditions.
Standard from the factory, every single zone
outdoor unit coil fin surface is coated with
LG’s exclusive GoldFin™ anti-corrosive
coating designed to prevent natural surface
corrosion of the aluminum fins. This main-
tains heat transfer properties of the coil for
an extended time.
A hydrophilic coating is applied to the
outdoor unit coil fin surface over the GoldFin
coating. This coating enhances the develop-
ment of heavier water droplets gathering
on the fin surface. As a result, the droplets
roll off the fin surfaces, delaying the point
when frost forms on the coil surface during
heating operation. This coating also makes it
possible to easily clean the outdoor unit coil
using a mild soap.
Other Features
• Inverter variable speed compressor
• Jet Cool / Jet Heat
• Dehumidifying mode
• Chaos Wind
• Auto restart
• Auto operation
• Self-cleaning indoor coil
• Condensate sensor connection
• Cooling only function
• Precision load matching
• Meets AHRI 210/240
PRODUCT FEATURES AND BENEFITS
