8 | Product data
Single Zone High Efficiency W
all Mount 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 systems are equipped with
inverter components that offer superior
load matching and long piping installation.
The product works for optimizing power
consumption in residential and small office
buildings. Utilizing multiple indoor wall mount
units each with custom temperature controls
allow for targeted 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 run at full load, they
have a quiet operating sound level. To
promote a quiet, comfortable environment,
the LG single zone system indoor units
operate at sound levels as low as 23 dB(A)
(19dB(A) in sleep mode) (High Efficiency
Single Zone) and the outdoor units as low
as 45 dB(A) at full load (High Efficiency
Single Zone). All rotating components
are soft-started by the controller using
digitally controlled inverters, which reduce
undesirable noise caused by fans and
compressors cycling on and off.
comfort control at its
best
Unlike traditional air conditioning control
systems, which use thermostatic controls to
maintain room temperatures, LG single zone
inverter controls continuously vary indoor
unit fan speed and refrigerant flow.
LG single zone one-to-one systems
continuously measure the room
temperatures and adjust system operations
accordingly to maintain set temperature.
The outdoor unit responds by varying the
compressor speed and outdoor fan motors
as needed to maintain system operating
pressure. As a result, the single zone
systems deliver targeted space temperature
control.
inverter Driven
The single rotary (9k-12k Btu/h systems)
and twin rotary (18k Btu/h systems)
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 which may lead
to lower utility usage.
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
capacity range of 3/4 to 1-1/2 tons
(depending on outdoor/indoor units).
outdoor unit 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 these single zone systems.
compact Size
Single zone high efficiency outdoor units
have the following footprints:
LSU090HSV4, LSU120HSV4
(WxHxD (in)) 30-5/16 x 21-1/2 x 11-5/16.
LSU180HSV4
(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
maintains 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 development 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
