Product Features And Benefits; Product Features And Benefits; Operating Range; Other Features - LG Art Cool LA090HSV4 Engineering Manual

ProduCT FeATureS And beneFiTS

Single zone Art Cool
Mirror Wall Mount
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 run at full load, they
have a quiet operating sound level. To pro-
mote 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) (Art Cool Mirror Wall-Mount-
ed) and the outdoor units as low as 45 dB(A)
at full load (Art Cool Mirror Wall-Mounted).
All rotating components are soft-started by
the controller using digitally controlled invert-
ers, 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 the indoor
unit fan speed and refrigerant flow.
LG single zone one-to-one systems continu-
ously 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 mo-
tors as needed to maintain system operat-
ing pressure. As a result, the single zone
systems deliver targeted space temperature
control.
inverter driven
The rotary (9k/12k Btu/h systems) and
twin-rotary (18k Btu/h systems) compres-
sors are optimized to maximize compressor
efficiency, which reduces power consump-
tion 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
8 | Product data
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 capac-
ity 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 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 alumi-
num 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
Due to our policy of continuous product innovation, some specifications may change without notification.
©
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG " is a registered trademark of LG Corp.
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 heat-
ing 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
• 3M Micro Protection Filter
™
• Chaos Wind
• Auto restart
• Auto operation
• Self-cleaning indoor coil
• Condensate sensor connection
• Precision load matching
• Meets AHRI 210/240