8 |   PRODUCT DATA
Single Zone High Efciency Standard Wall Mount Engineering Manual
Due to our policy of continuous product innovation, some specications may change without notication. 
© 
LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. “LG” is a registered trademark of LG Corp.
MECHANICAL SPECIFICATIONS
General
LG Single Zone High Efficiency Wall Mount 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 Bafe 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 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:
LSU090HSV5 = 10-84 Hz
LSU120HSV5 = 10-92 Hz
LSU180HSV5 = 10-93 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
TM
 material with hydrophilic coating. Drain pan 
heaters are also available for the outdoor units—9,000 and 12,000 
Btu/h outdoor units include factory-installed drain pan heaters; the 
drain pan heater for the 18,000 Btu/h outdoor unit is offered as an 
optional accessory
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.
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 18 AWG 
four-core, stranded, shielded power / communication cable. HSV5 
indoor units have built-in Wi-Fi and can be controlled by LG’s Smart 
ThinQ™ app on a smart device. 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: Single Zone High Efciency Wall Mount Indoor Unit.