8 | PRODUCT DATA
Single Zone Mega Wall Mounted Engineering Manual
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Single Zone Mega and Mega 115V
MECHANICAL SPECIFICATIONS
General
LG Single Zone Mega Wall Mounted systems
comprise of a single outdoor unit connected
to a single indoor unit with a single refriger-
ant circuit.
An LG Single Zone Mega Wall Mounted
system is a Duct-Free Split system that can
operate in either cooling or heating mode.
The system shall be capable of changing
mode within a maximum time of three (3)
minutes to ensure indoor temperature can be
properly maintained.
LG Single Zone Mega systems are manu-
factured 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 Standard-
ization (ISO). Wiring in these units are in
accordance with the National Electrical Code
(NEC).
Temperature Ranges
Mega (HEV2)
Operating ranges for outdoor unit of 14°F to
118°F (DB) for cooling; 14°F to 65°F (WB)
for heating.
Operating ranges for indoor unit of 53°F to
75°F (WB) for cooling; 60°F to 86°F (DB) for
heating.
Mega 115V (HXV)
Operating ranges for outdoor unit of 14°F to
118°F (DB) for cooling; 14°F to 65°F (WB)
for heating.
Operating ranges for indoor unit of 53°F to
75°F (WB) for cooling; 60°F to 86°F (DB) for
heating.
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 refriger-
ant. The outdoor unit is provided with factory
installed components, including a refrigerant
strainer, check valves, oil separator, accu-
mulator, four-way reversing 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 suf-
ficient 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 (HEV2) outdoor
units are:
9k Btu/h = 10 to 92 Hz
12k Btu/h = 10 to 98 Hz
18 Btu/h = 10 to 87 Hz
24k Btu/h = 10 to 95 Hz
Frequency ranges for the (HXV) outdoor
units are:
9k Btu/h = 15 to 100 Hz
12k Btu/h = 15 to 100 Hz
Over-current protection and vibration isola-
tion are integrated with the compressor.
Outdoor Unit Coil
Heat Pump outdoor unit coils are 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™ mate-
rial with hydrophilic coating.
Fans and Motors
The outdoor unit includes one direct drive,
variable speed propeller type fan.
The Brushless Digitally Controlled (BLDC)
fan motor has inherent protection, perma-
nently 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
The HEV2 model unit is available in a 208-
230V 60 Hz, 1-phase power supply. The
HXV model unit is available in a 115V 60
Hz, 1-phase power supply. The units are
capable of operating within voltage limits of
±10% rated voltage, and include overcurrent
protection.
Controls
The unit is factory wired with necessary elec-
trical control components, integral micropro-
cessors, 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.
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