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8| PRODUCT DATA
Single Zone Extended Piping Wall Mounted Engineering Manual
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MECHANICAL SPECIFICATIONS
General
LG Single Zone Wall Mounted Extended
Piping 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 components 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). 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 all 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
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
twin rotary compressor to modulate capacity
(modulation in 1 Hz increments).
Frequency ranges for the outdoor units are
as follows:
LSU243HLV3: 10 Hz ~ 70 Hz for Cooling;
10 Hz ~ 100 Hz for Heating.
LSU303HLV3: 10 Hz ~ 60 Hz for Cooling;
10 Hz ~ 90 Hz for Heating.
LSU363HLV3: 10 Hz ~ 64 Hz for Cooling;
10 Hz ~ 90 Hz for Heating.
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 fins have a
factory applied corrosion resistant GoldFin
TM
material with hydrophilic coating. Outdoor
units include factory-installed drain pan
heaters.
Fans and Motors
The outdoor unit includes one direct fan
drive, variable speed variable speed
propeller type fan.
The Brushless Digitally Controlled (BLDC)
fan motor included 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.
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
The indoor unit casing has a factory-
standard, integral, infrared sensor designed
to communicate with the supplied LG
wireless handheld remote controller. An
optional LG supplied wired controller is
available as an additional accessory.
Communication between the indoor unit and
the outdoor unit is accomplished through 14
AWG four-core, stranded, shielded power /
communication cable.
HLV3 indoor units have built-in Wi-Fi and
can be controlled by LG’s Smart ThinQ™
app on a smartphone. A field-supplied Wi-Fi
network and smart device are required. The
Smart ThinQ app is free, and is available for
Android™ and iOS. (Android is a trademark
of Google LLC.)
Figure 3: LS303HLV3 and LS363HLV3 Ex-
tended Piping Wall Mounted System.
Extended Piping Wall Mounted System
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