What is Water-cooled Screw Chiller

LG Water-cooled Screw Chiller shown in a virtual space with four key features summarized. LG Water-cooled Screw Chiller shown in a virtual space with four key features summarized.

Water-cooled Screw Chiller

It is a specially designed cooling unit that can work efficiently even in an various environment. It offers efficient cooling with LG’s technologies such as falling film type evaporator and oil recovery system.

Highly Efficient Operation

Refrigerant flows down the Falling Film evaporator with a structural diagram on the right.

Falling Film Type

Unlike flooded evaporators, falling film types drip refrigerant from distributors over stacked tubes, providing direct contact with each tube for greater efficiency with less refrigerant.

Highly Reliable Technology

  • LG Water-cooled Screw Chiller on the left, with diagram explaining backup compressor operation on the right.

    Back Up Operation

    The LG Water-cooled Screw Chiller offers continuous operation through an automatic emergency backup if an issue occurs in one compressor or cycle. This enhances system reliability and provides stable performance.

  • Structural diagram illustrating the Oil Recovery System process.

    Oil Recovery System

    During high-speed rotation of the compressor, the supplied oil is recovered through a three-stage separation system. The three-stage oil recovery system minimizes the amount of oil during refrigerant circulation, improving cooling efficiency. Continuous oil supply and recovery prevents oil shortage.

* Back Up Operation function is available for over 2 compressor models.

Convenient Installation & Control

  • LG Water-cooled Screw Chiller 1 Compresoor model shown with reduced footprint highlighted below.

    Reduced Weight & Size

    The 1 Compressor model utilizes installation area efficiently and features a reduced weight design.

  • Man holding a tablet while adjusting the LG Water-cooled Screw Chiller Controller interface.

    New Chiller Controller

    The 15” large touched screen has improved visibility, operability. Also it supports various functions such as run history, information, scheduling, and report functions.1)

1) Depending on the model, the New Chiller Controller may not be applicable.

The Optimal and Flexible Solutions

LG Water-cooled Screw Chiller provides various utilizing options such as heat pump, ice thermal storage. These options help provide efficient heating and cooling.
* Images are simulated to enhance feature understanding, and may differ from actual use experience.

LG Water-cooled Screw Chiller Lineup

* The above range is based on the nominal tonnage at AHRI condition.
* Glycol Water(EG30%): -1/-4.5℃ Cooing water: 32/37℃ Condition
* Hot Water: 40/45℃ Heat Source: 12/7℃ condition
* Hot water outlet temperature up to 60℃.

FAQs

Q.
What are the lineup, refrigerant type, and features of LG Water-cooled Screw Chiller?
A.
(1) Lineup
- Water-cooled Screw Chiller 50Hz : 90 ~ 350usRT
- Water-cooled Screw Chiller 60Hz : 80 ~ 410usRT
- Ice Thermal Water-cooled Screw Chiller 50 Hz : 50 ~ 230usRT
- Ice Thermal Water-cooled Screw Chiller 60 Hz : 70 ~ 290usRT
- Screw Heat Pump 50Hz : 340 ~ 1350kW
- Screw Heat Pump 50Hz : 310 ~ 1630kW

(2) Refrigerant
- Refrigerant Option : R-134a

(3) Key Features
- Highly efficient operation with falling film type evaporator
- Highly reliable technology with back up operation and oil recovery system
- Conveninent installation & control with reduced size and new chiller controller
- Optimal and Flexible solution with heat pump and ice thermal storage
Q.
Why LG Water-cooled Screw Chiller?
A.
LG Water-cooled Screw Chiller offers the compact and efficient cooling solution through advanced technologies such as falling film type evaporator, oil recovery system. Also, It provides various utilizing options with heat pump and ice thermal storage.
Q.
Where is it usually used?
A.
The Water-cooled Screw Chiller is used in factories, industrial facilities, and commercial buildings to provide cooling or heating.
Q.
Which refrigerant is the LG Water-cooled Screw Chiller optimized for?
A.
The chiller is primarily optimized for R134a refrigerant. R134a, a type of HFC refrigerant,
offers a zero Ozone Depletion Potential (ODP) and a lower Global Warming Potential (GWP) compared to R22.

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