LG Aircon Rooftop Inverter

LG Aircon Rooftop Inverter

Eco-friendly leadership

Higher Energy Efficiency

• LG BLDC Inverter Compressor
• BLDC Inverter Fan Motor
• Newly designed propeller fan
• Wide Lower Fin in Heat Exchanger

High Reliability & Comfort

• Enhanced Logic
• Emergency back up operation & Alternate-Cycling
• Auto Restart Operation
• Soft Start Function
• Automatic emergency back-up operation
• Night silent operation
• Pressure & Temperature Control

Easy Maintenance & Service

• Automatic test run
• Additional functions available with duct system

Higher Energy Efficiency Air Conditioners

LG BLDC Inverter compressor
Improved the Improved the energy efficiency by 11%, compared to the AC inverter compressor, by using the high efficiency LG BLDC inverter compressor. We have developed a new compressor with better performance, higher efficiency, and a more enhanced reliability than the conventional compressors.

For the motor, which is the core of the compressor, the product uses a BLDC motor. The BLDC motor is a highly efficient motor, where strong Nd magnetism inside the rotor produces magnetic torque and the metal part of the rotor produces reluctance torque to generate strong rotational force.

Efficiency is improved because it has no slip loss, which always occurs in the normal induction motor, and noise is also reduced due to its low torque ripple design. In addition, because the LG BLDC inverter compressor has the back pressure structure in which the interior of the compressor is maintained at a high pressure, the compression efficiency is improved. The compressor is also a high pressure type that makes oil lubrication smoother. Compared to the conventional models, the LG BLDC inverter compressor has more improved performance and reliability.

BLDC Inverter Fan Motor
BLDC inverter fan motor reduced to motor energy consumption power 35% and improved to motor output 75% The product is equipped with highly efficient BLDC motor.

The BLDC motor power consumption has been reduced and output has been improved, compared to the normal induction motor. With strong torque and powerful Neodymium magnet inside the rotor, the BLDC motor provides large air volume and high static pressure.

Newly designed propeller fan
The Super Aero fan is a large air volume and high static pressure fan, and at the same time it produces low levels of noise. To provide our customers with high cooling and heating performance at a minimum size, and as well as apleasant environment ensured by quiet operation.

LG inverter single package uses various low noise technologies. It has minimized operation noise by using a compressor with BLDC motors, low noise fan motors, new soundproof technology, outdoor fans, and a newly developed shroud shape.

Wide Louver Fin in Heat Exchanger
Fin Efficiency improvement by 14% Change heat exchange shape. Improved efficiency by using wide louver fins with an increased thermal transfer area. LG’s patented chloride-induced corrosion resistant Gold-fin has low corrosion and erosion rates and high hydrophilicity.

Its performance will not be affected even in a humid area. The exchangers of our outdoor unit are treated against corrosion and pollution. This treatment guarantees the durability of the systems and high-level performance.

More Reliable Air Conditioners

Emergency back up operation & Alternate-Cycling

• Minimizing any inconvenience that may occur in an emergency situation
• For emergency, it makes back up operation possible before trouble-shooting
• Error notice in indoor unit : 4 times per day (every 6hour)
• To extend compressors life span by operating them alternately
• To meet diverse load in operation

Auto Restart Operation
Whenever there is electricity failure the system shuts off and resumption of the power, unit will start in the same mode as prior to the power failure. Memorized condition are on / off condition, operating mode (cooling), set temperature and fan speed.

Soft Start Function
All single package air conditioners has soft start function i.e. Indoor fan, outdoor fan & compressor start in sequence to prevent overcurrent during starting.

Automatic emergency back-up operation
Minimizing any inconvenience that may occur in an emergency situation. For emergency, it makes back-upoperation possible before trouble-shooting. Error notice in indoor unit : 4 time per day (every 6hour)

Night silent operation
It is possible to operate air-conditioner silently by V-scroll compressor, Fan control technology and real-timesensing the outdoor temperature. The night silent operation function can save the running cost 55%.

Pressure & Temperature Control
Conventional temperature control sensed temperature and calculated target pressure based on in/ outdoor temperature, desired temperature, etc. It was hard to respond to target load quickly.

To control the cycle, pressure sensor is added to the conventional temperature control to enable elaborate control to Improve reliability with stabilized system and quick and proper response.

More Convenience

Fast Cooling & Heating Operation
With PI control logic, the set temperature is achieved more quickly and also the air conditioning efficiency is improved by 30%, It provides not only quick but powerful air conditioning operation.

Cooling & Heating & Fan Operation
LG air conditioners can provide cooling & heating & fan operation. In the cooling(heating) mode, the operation ranges are -5~48°C(-15~24°C). In the fan operation mode, only indoor fan at the selected speed will run, outdoor fan and compressor will be off.

Real time smart operation
In situations where the cooling load difference is large, if performance of one side is high enough, performance of the other side can be overloaded. To control these situations, the product uses the real-time power saving operation algorithm, which enables the product to automatically decide on the operation status for the indoor units and automatically control them to maintain an optimal operation level and reduce power consumption.

Time Delay Relay
It delays restarting of the compressor by three minutes thereby preventing damage to the compressor

Self Diagnosis Function
This function provides diagnosis of the unit. An error code will be displayed on the LCD wired remote controller & diagnosis can be done as per the code indication. The same is also printed on key cover of the LCD wired remote controller.

Easy Installation, Maintenance &amp Service
The unit can be installed outside to save valuable indoor space or where no ceiling space is available. Install the unit on the ground or on the roof. This means that the installation is totally flexible depending on your requirements.

Since the unit has not been split into two, maintenance is easy, especially because all access panels are on the same side of the unit and all wiring inside has been color coded.

Automatic test run
Easy and fast automatic test run by dip switch, help you to save the checking time during the final stage of installation. If it detects errors, it sends error messages on PC screen.

Additional functions available with duct system
All units come standard in Reverse Cycle, however electric heating can be added (Electric Heating provided by Specialist Dealers). You have complete control over the fresh air input, amount of air purification and  zonecontrols (extras provided by Specialist Dealers), all using the powerful LG control system.

Air Conditioner Controller & Accessories

LCD Wired Remote Control : (Accessory)
It can control all the functions of the unit. You can check/set temperature, change
operation mode, set timer & also diagnose the error of the unit. It also has the weekly
program.

Two Thermistor Control (Return Air Control) :(Accessory)
There may be a significant difference between the return air temperature in the duct and the room temperature. Return air sensing temperature is designed to control temperature more accurately by applying additional thermistor which senses the return air temperature inside the duct specially.

After selecting the duct thermistor, which is connected to the main PCB, the room temperature measurementby LCD wired remote control thermistor is neglected. It helps to control the room temperature more accurately. (Thermistor is a field-installed accessory)

Group Control :(Accessory)
It connects and controls 2 or more air conditioner indoor units(Maximum number of IDU :16ea) to one wired remote controller.
(Connect using the group control cable.)

V net :(Accessory)
LG V-Net supports to interlock with all LG commercial air conditioner.In addition, LG V-Net can extend central control to BMS Interface (LonWork / BACnet) as well.

Lock Setting
It is the function to lock the button operation of the remote controller so that children or other persons cannot use it without permission. It is the function to limit the desired temperature range that can be set in the wired remote controller.

Central Control :(Accessory)
It enables to control 16 x 8 = 128 units with the help of 8 controllers. All units can be put on and off from one Central Room.For Setting Temperature, Fan Speed and other sub functions, access the LCD wired remote controller of each unit.