Product Features And Benefits - LG LS091HSV3 Engineering Manual

PRODUCT FEATURES AND BENEFITS

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 precise temperature settings in
each zone of the building. Single zone sys-
tems 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 dur-
ing off-peak operation. To promote a quiet,
comfortable environment, the single zone
system indoor units operate at sound levels
as low as 24 dB(A) (High Efficiency Single
Zone) and outdoor units as low as 45 dB(A)
at full load (High Efficiency Single Zone).
LG customers often ask if the outdoor unit is
running after commissioning is complete. 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
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.
8 | PRODUCT DATA
Inverter Driven
The rotary (9k-12k Btu/h systems) and twin
rotary (18k-36k Btu/h systems) compressors
are optimized to maximize compressor ef-
ficiency, which reduces power consumption
and monthly utility bills. This latest inverter
technology allows single zone system out-
door units to vary the compressor motor
shaft speed to deliver an appropriate amount
of cooling to the indoor unit. Precise refriger-
ant 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 3/4 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 75°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:
Single Zone High Efficiency
LSU091HSV3, LSU121HSV3
(WxHxD (in)) 30 5/16 x 21 1/2 x 11 5/16.
LSU181HSV3, LSU240HSV3
(WxHxD (in)) 34-1/4 x 31-1/2 x 12-5/8.
Single Zone Standard
LSU307HV3, LSU360HV3
(WxHxD (in)) 34-1/4 x 31-1/2 x 12-5/8.
Single Zone Extended Pipe
LSU240HLV, LSU300HLV, LSU360HLV
(WxHxD (in)) 34-1/4 x 31-1/2 x 12-5/8.
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.
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