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MecHAnicAl SPecificATionS
general
LG Single Zone High Efficiency systems are
comprised of a single outdoor unit connected
to a single indoor unit with a single
refrigerant circuit.
These single zone systems can operate in
either cooling or heating mode. These
systems are capable of changing mode
within a maximum time of three (3) minutes
to ensure temperature can be properly
maintained.
LG Single Zone High Efficiency systems
are manufactured in a facility registered to
ISo 9001 and ISo 14001, which is a set
of standards applying to environmental
protection set by the International
organization for Standardization (ISo). The
units are listed by Intertek Electrical Testing
Laboratories (ETL) and bear the ETL label.
Wiring in these units are in accordance with
the national Electrical Code (nEC).
Temperature ranges
Outdoor Unit
operating ranges for outdoor units of 14°F
to 118°F DB for cooling and -4°F to 65°F
WB for heating.
Indoor Unit
operating ranges for indoor units of 53°F to
75°F WB for cooling and 60°F to 86°F DB
for heating.
Installing an optional Low Ambient Wind
Baffle Kit will allow operation down to 0°F in
cooling mode for these single zone systems.
casing / frame
outdoor unit is constructed with pre-coated
metal (PCM).
Indoor unit is constructed of heavy duty
Acrylonitrile Butadiene Styrene (ABS) and
High Impact Polystyrene (HIPS) plastic.
refrigerant System
The refrigeration system consists of a
single refrigeration circuit and uses R410A
refrigerant. The outdoor unit is provided with
factory installed components, including a
52 | reFrIGerant deSIGn
refrigerant strainer, four-way reversing valve,
electronic controlled expansion valve (EEV),
high and low side charging ports, service
valves, and interconnecting piping.
refrigeration oil control
Heat pump outdoor units have a centrifugal
oil separator and controls to ensure sufficient
oil supply is maintained, and that oil does
not travel with the refrigerant.
compressors
The outdoor unit is equipped with one
hermetic digitally controlled inverter driven
single rotary (9k/12k Btu/h systems) or twin
rotary (18k Btu/h systems) compressor
to modulate capacity (modulation in 1 Hz
increments).
Frequency ranges for the outdoor units are
as follows:
LSU090HSV4, LSU120HSV4, LSU180HSV4
= 15-100 Hz
overcurrent protection and vibration isolation
are integrated with the compressor.
outdoor Unit coil
Heat pump outdoor unit coils are made of
a nonferrous construction with louvered
fins on copper tubing, and are protected
with an integral coil guard. Coil fans have a
factory applied corrosion resistant GoldFin
material with hydrophilic coating.
fans and Motors
The outdoor unit includes one direct fan
drive, variable speed propeller type fan.
The Brushless Digitally Controlled (BLDC)
fan motor shall have inherent protection,
permanently lubricated bearings, and
variable speed with a maximum speed up to
950 rpm. Raised guards are provided to limit
contact with moving parts.
The outdoor unit has horizontal discharge
airflow.
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.
electrical
These units are available in 208-230V, 60
Hz, 1-phase power supply. These units are
capable of operating within voltage limits of
± 10% rated voltage, and include
overcurrent protection.
controls
These units are factory wired with
necessary electrical components, integral
microprocessors, printed circuit boards,
thermistors, sensors, terminal blocks, and
lugs for power wiring.
Microprocessor-based algorithms provide
component protection, soft-start capability,
refrigeration system pressure, temperature,
defrost, and ambient control.
TM
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