World News

Industry news and insights from Europe and around the World

UK News

Latest news and developments in the United Kingdom


Keep up-to-date with the latest new products and technology


General articles, applications and industry analysis

LG launches Multi V lV VRF

MV4-Single-Frame-UX2_1_20130718132717LG has introduced a fourth generation of its Multi V VRF product range offering superior performance and energy efficiency over the Multi V lll  which it replaces.

The Multi V IV benefits from a number of small but significant system improvements which together contribute to a unit providing EERs of 4.85 and a 30% improvement in efficiency over its predecessor.

The new VRF incorporates LG’s high pressure oil return system which reduces energy use by having a separate inlet pipe from the oil separator to the compressor to return oil directly to the compressor. This is said to boost COP by 6.7% during cooling and 5.4% during heating. Its smart oil return system employs a special sensor to check oil levels in real time, performing recovery only when necessary. LG claim to have evidence of units operating for 200 days without going into oil recovery mode.

At the heart of the new system is LG’s fourth generation inverter DC scroll compressor utilising vapor Injection to maximise heating capabilities. The compressor speed range is now 15Hz to 150Hz for better partial load operation.

The Multi V lV also benefits from a a variable heat exchanger circuit , the unit selecting the optimal path for both hot and cold streams and providing a 15% increase to integrated energy efficiency.

The active refrigerant control system automatically monitors and adjusts the volume of circulating refrigerant during each cycle.

Lifts have also been increased to 110m and there is an enhanced reach of 40m between indoor units.

A new smart control system also allows users to remotely monitor and adjust settings via an easily installed smart phone application.

LG Air Conditioning and Energy Solutions

Latest News

26th February 2024

Brian Streatfield 1936-2024

UK: Brian Streatfield, a man who was instrumental in the formation of Carrier in the UK during the 1970s, died at the weekend. He was 87.
25th February 2024

Safety is vital in global F-gas transition

UK: Institute of Refrigeration president Graeme Fox has warned of the real-world issues that the “rapid transition” to “natural” refrigerants poses for developing countries.
25th February 2024

Terrie Lamb wins lifetime achievement award

UK: Terrie Lamb of Cimetrics was recognised for 25 years of dedication to the RACHP sector in a night of awards at Thursday night’s annual Institute of Refrigeration (IoR) dinner.
25th February 2024

Boosting EV range with microwave energy

UK: Researchers from the University of Birmingham are working on an energy storage system which couples a chemical heat pump with microwave energy to produce heating or cooling on demand.
25th February 2024

Home heat pump install for newly-trained engineers

UK: A UK charity is proposing to give newly trained heat pump installers an air-source heat pump to install in their own home.
23rd February 2024

Hoshizaki acquires 25% stake in Fogel

PANAMA: Japanese refrigeration equipment manufacturer Hoshizaki has acquired a 25% stake in Fogel Company Inc, a manufacturer of commercial refrigeration equipment based in Republic of Panama, for US$28m.