LG Air Conditioning Technologies -Heat Recovery Units (HRU)


The Heat Recovery Unit (HRU) creates an integrated flow for the LG VRF Heat Recovery system's design.

Category: VRF systems | geothermal cooling | heat pumps...

MasterFormat: Central Cooling Equipment | Decentralized HVAC Equipment | Decentralized Unitary HVAC Equipment...

LG Air Conditioning Technologies
4300 North Point Pkwy
Alpharetta, GA 30022
Tel: (800) 423-4142


Find a rep/distributor

Request More Info


Related Products


Heat Recovery Units (HRU)

The Heat Recovery Unit (HRU) creates an integrated flow for the LG VRF Heat Recovery system's design.

The LG Heat Recovery Unit (HRU) have a number of design features that directly translate to lower first costs and operating costs. Available in 2-, 3-, 4-, 6- and 8- port configurations, the HRUs provide flexibility to the system's design with reduced installation clearance requirements, simplified system piping layout and increased capacity per port.

Benefits & Features
  • Expanded line up to include 6 and 8 port models - By adding the option for models with more ports and increasing the capacity per port, the redesigned HRUs reduce the amount of labor and materials needed for a project while enabling greater design flexibility.

  • Installation flexibility options - As part of a hybrid pipe system the heat recovery unit utilizes the best of series and parallel piped layouts. This design reduces the number of branches and the amount of piping needed by getting the ports closer to the indoor units they serve.

  • Increased capacity - Per port capacity has increased up to 5 tons and the HRU/HRU string capacity increased up to 19.2 tons which improves installation flexibility with a system's design.

  • Improved bottom access to electrical components - The HRUs feature improved bottom access to the electric panel which drastically reduces the required installation clearance and increases installation flexibility, particularly installation location.

  • System piping layout - System pipes are vertically aligned as opposed to being in a triangular pattern which greatly simplifies the running of the pipes during installation and reduces the risk of mismatching pipes. When HRUs are turned to face the opposite direction (i.e. alternating HRUs down a hallway) there is no need to cross pipes over which complicates the piping and increases labor costs and the risk for error.

See More


Model NumberSystem Compatibility
PRHR022AMulti V IV
PRHR063AMulti V 5
PRHR033AMulti V 5
PRHR042AMulti V IV
PRHR032AMulti V IV
PRHR023AMulti V 5
PRHR043AMulti V 5
PRHR083AMulti V 5