LG listens to customers with arrival of compact VRF

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20 October 2017
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LG believes it has responded to what its customers want with the launch of its latest VRF solution.

The Multi V S Heat Recovery is designed for small to medium-sized spaces. It offers simultaneous heating and cooling as well as domestic hot water. Claimed as an industry first, this front discharge model targets the gap between multi splits and large VRF systems. 
Andrew Slater, Senior Engineering Manager at LG UK, said: “The Multi V S Heat Recovery VRF is perfect for buildings where space is at a premium. It offers superb energy efficiency, strong, quiet performance and unbeatable flexibility.

"Our customers are excited that there is now a small, lightweight industry first heat recovery system with side discharge, and comparatively low running and maintenance costs. The Multi V S is yet another great example of LG’s commitment to responding to market requirements, producing the most efficient, technologically advanced products possible.” 


LG's new compact VRF system claims a 3.90 energy efficiency ratio (EER) in cooling operation and a 4.39 coefficient of performance (COP) in heating operation. It is capable of achieving an ESEER value of 8.05 and a heat recovery potential COP of 9.57, in nominal operating conditions.

It incorporates LG’s own fifth generation compressor equipped with a High Sided Shell (HSS) and a new Polyetheretheketone (PEEK) bearing which allows an all inverter system compressor to operate between 10Hz – 165Hz, increasing partial efficiencies, extending capacity, and increasing reliability. The PEEK bearing system sees a redesigned scroll bearing, consisting of Polyetheretheketone, a material normally used in aeroplane engines to give high reliability by suffering minimum effects of frictional wear at high temperatures, caused normally by periods of oil less operation.

Dual Sensing Control
Dual Sensing Control is a new system concept designed to reduce operating costs and optimise comfort conditions. The Multi V S Heat Recovery system reacts to load requirements by monitoring both temperature and humidity levels. Using Smart Load Control (SLC), the system operating conditions are regulated in reaction to both latent and sensible heat loads rather than a traditional sensible load only, increasing energy efficiency by up to 31% compared to none SLC models.

A typical VRF system operation would fluctuate considerably in order to maintain the required room conditions, normally operating on a thermostat on, thermostat off cycle. The Dual Sensing Control offers each user a selectable Comfort Cooling option, which maintains supply air temperatures around the desired room set point, reducing on/off cycling, eliminating draughts and delivering maximum user comfort. 

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