Installation

Soap water method

1. Remove the caps from the 2-way and 3-way valves.

Liquid side

2. Remove the service-port cap from the 3-way valve.

 

3. To open the 2-way valve turn the valve stem

 

counterclockwise approximately 90°, wait for about

 

2~3 sec, and close it.

Gas side

4. Apply a soap water or a liquid neutral detergent on

2-way valve

the indoor unit connection or outdoor unit

(Open)

connections by a soft brush to check for leakage of

3-way valve

the connecting points of the piping.

(Close)

5. If bubbles come out, the pipes have leakage

 

Evacuation

 

 

 

Hexagonal wrench

Cap

1. Connect the charge hose end described in the

 

 

 

 

 

 

 

 

 

preceding steps to the vacuum pump to

 

 

 

 

 

evacuate the tubing and indoor unit.

 

 

 

 

 

Confirm the "Lo" knob of the manifold valve is

 

 

 

 

 

open. Then, run the vacuum pump.

 

 

 

 

 

The operation time for evacuation varies with

 

 

Indoor unit

 

 

tubing length and capacity of the pump. The

 

 

 

 

 

following table shows the time required for

 

 

 

 

 

evacuation.

 

 

 

 

 

 

Required time for evacuation when 30 gal/h vacuum

 

 

 

 

 

pump is used

 

 

 

 

 

If tubing length is less

If tubing length is longer

 

 

Outdoor unit

 

 

than 10m (33 ft)

than 10m (33 ft)

 

 

 

 

 

 

 

 

 

10 min. or more

15 min. or more

 

 

 

 

 

2. When the desired vacuum is reached, close the

 

 

 

 

 

"Lo" knob of the manifold valve and stop the

 

 

 

 

 

vacuum pump.

 

 

 

 

 

 

Finishing the job

 

 

 

 

 

 

1. With a service valve wrench, turn the valve stem

 

 

 

 

 

of liquid side valve counter-clockwise to fully

Manifold valve

 

 

open the valve.

 

 

 

 

 

 

2. Turn the valve stem of gas side valve counter-

Pressure

Lo

Hi

 

 

clockwise to fully open the valve.

gauge

 

 

 

 

 

 

 

 

 

3. Loosen the charge hose connected to the gas

 

 

 

 

 

side service port slightly to release the pressure,

Open

 

Close

 

 

then remove the hose.

 

 

 

 

 

 

4. Replace the flare nut and its bonnet on the gas

 

 

 

 

 

side service port and fasten the flare nut

 

 

 

 

 

securely with an adjustable wrench. This

 

 

 

 

 

process is very important to prevent leakage

 

 

 

 

 

from the system.

 

 

 

 

 

 

5. Replace the valve caps at both gas and liquid

Vacuum pump

 

 

side service valves and fasten them tight.

 

 

 

 

 

This completes air purging with a vacuum pump.

 

 

 

 

 

The air conditioner is now ready to test run.

 

 

 

 

 

 

 

 

 

Installation Manual

27

ENGLISH

Page 26 Page 28
Page 27
Image 27
LG Electronics LS305HV installation manual Soap water method, Evacuation, Finishing the job
Page 26 Page 28

LS305HV specifications

The LG Electronics LS305HV is a cutting-edge split-type air conditioning unit that blends efficiency and comfort with modern technology to create the ideal indoor environment. Designed to cater to both residential and commercial spaces, this model stands out for its sleek design, user-friendly interface, and advanced air conditioning capabilities.

One of the standout features of the LS305HV is its energy efficiency. Equipped with a high-performance compressor and inverter technology, the unit adjusts its cooling output based on the ambient temperature, ensuring optimal comfort while minimizing energy consumption. This not only helps reduce electricity bills but also supports environmentally conscious living.

The LS305HV is designed for quick and effective cooling. With a powerful airflow system, it can rapidly distribute cool air across a room, reaching every corner effectively. This feature is particularly beneficial for larger spaces where uniform temperature control is essential. The unit operates quietly, making it ideal for use in bedrooms and workplaces without disrupting daily activities.

Another significant characteristic is the advanced air purification system integrated within the LS305HV. Utilizing a multi-layered filter, the unit effectively captures dust, allergens, and other airborne particles, promoting a healthier indoor environment. This feature is especially advantageous for individuals with respiratory issues or allergies, ensuring cleaner air is circulated throughout the space.

The unit is also equipped with smart technology that allows users to control it remotely via a mobile app. This remote access enhances user convenience, enabling adjustments to cooling settings or scheduling on/off times from anywhere. Additionally, the smart diagnostic feature assists in monitoring the unit's performance, alerting users to any maintenance needs before they become larger issues.

Furthermore, the LS305HV boasts an aesthetic design that harmonizes seamlessly with modern interior decor. Its compact size and elegant finish make it a visually appealing addition to any room, allowing users to enjoy both functionality and style.

In summary, the LG Electronics LS305HV is a top-tier air conditioning system that prioritizes efficiency, comfort, and air quality. With its advanced inverter technology, high cooling capacity, smart features, and aesthetic appeal, it is an excellent choice for anyone seeking reliable climate control. Whether for home or office use, this unit exemplifies LG's commitment to delivering innovative and effective solutions for everyday living.
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