Flexible for Any Home,

Reduce your energy bills and your reliance on fossil fuels with Therma V Split. It connects to indoor unit with separate water tank or just one water tank integrated indoor unit. It’s flexible and easy to install for any type of home. Contact us for this sustainable heat pump system.

Easy, Flexible Installation for All Housing Types

Save space with the wall-mounted or floor-standing type indoor unit which includes a water tank. Able to be fitted in a wide range of homes, its pipes extend up to 50 meters and can be flexibly and neatly connected. The Split can also be installed farther away from your property for more complex installations. Plus, the outdoor unit is smaller than the Monobloc, making installation easier and shorter with integrated hydronic components included in the indoor unit.

Reliable Heating to Keep Your Entire House Warm

LG Therma V Split can provide heating and hot water while reducing heating cost with A+++ class energy efficiency. The Split puts your mind at ease in the winter with no freezing risk caused by exposed water piping. Its two units are only connected by refrigerant piping, so hydronic components are located safely within the indoor unit. No matter how cold it gets out, the unit won't be compromised by freezing thanks to its Split nature.

*Energy Label is based on COMMISSION DELEGATED REGULATION (EU) No 811/2013. LG Therma V R32 Split reaches energy label ErP A+++ for space heating 35°C LWT and ErP A++ for space heating 55°C LWT.
*The results of the energy label may vary depending on the LG Therma V model. Please refer to the LG Compliance Information homepage (https://www.lg.com/global/support/cedoc/cedoc) for model-specific information.

R1 Compressor

Efficient and reliable home heating is available by R1 Compressor technology. The improved tilting motion of the scroll has increased overall efficiency and reliability.


With LG ThinQ™ app, users can simply control the heating system anytime from anywhere. Remote access to the heating system allows users maximized comfort.

Intuitive Controller

The intuitive controller allows quick, easy use with a simple touch. Users can set schedules based on their lifestyles and manage energy consumption with daily or monthly power monitoring.

Energy State

LG Therma V has energy-saving power states, can automatically follow power company status signals, and lets your home make and store energy if integrated with our solar and energy storage solutions.

Spec Detail

The LG air to water heat pump line-up features various models.


Table Caption
Features R32 Split R32 Split R410A Split High Temp.
R32 Split 4/6 kW Hydro Box
R32 Split 4/6 kW Hydro Box
R32 Split 5/7/9 kW Hydro Box
R32 Split 5/7/9 kW Hydro Box
R410A Split Hydro Box
R410A Split Hydro Box
High Temperature
High Temperature
Refrigerant & GWP R32 / 675 R32 / 675 R410A / 2088 R410A / 2088 R134a / 1430
Capacity Range (kW) (1Ø) 4 / 6 (1Ø) 5.5 / 7 / 9 (1Ø&3Ø) 12 / 14 / 16 (1Ø) 16
Energy Efficiency Class for Heating A+++ / A++ for Heating A+++ / A++ for Heating A+++ / A++ for Heating A+ / A+
Power Supply (V, Ø, Hz) 220-240, 1, 50 220-240, 1, 50 220-240, 1, 50 380-415, 3, 50 220-240, 1, 50
Dimension, ODU (WxHxD,mm) (4/6kW) 870x650x330 (5/7/9kW) 950×834×330 950x1,380x330 950x1,380x330
Weight, ODU (kg) (4/6kW) 44.7 (5/7/9kW) 60.0 (1Ø) 84.8 (3Ø) 85.4 89.0
Dimension, IDU (WxHxD,mm) (4/6kW) 490×850×315 (5/7/9kW) 490×850×315 490x850x315 520x1,080x330
Weight, IDU (kg) (4/6kW) 37.8 (5/7/9kW) 38.1 (1Ø) 40.5 (3Ø) 41.5 84.0
Sound Power Level ODU (dB(A)) (4/6 kW) 57/58 (5/7/9 kW) 60/60/60 63/64/65 63
Sound Power Level IDU (dB(A)) (4/6 kW) 44 (5/7/9 kW) 44 44 58 ~ 63
Operation Range (OAT, ℃) 4/6 kW) Heating: -20 ~ 35 Cooling: 5 ~ 48 (5/7/9 kW) Heating: -25 ~ 35 Cooling: 5 ~ 48 Heating: -25 ~ 35 Cooling: 5 ~ 48 Heating: -25 ~ 35
Operation Range (LWT, ℃) (4/6 kW) Heating: 15~55 Cooling: 5~27(16~27)2) (4/6 kW) DHW: 15 ~ 803) (5/7/9 kW) Heating: 15~65 Cooling: 5~27(16~27)2) (5/7/9 kW) DHW: 15 ~ 804) Heating: 15 ~ 57 Cooling: 5 ~ 27 (16 ~ 27)² DHW: 15 ~ 80³ Heating: 25 ~ 80 DHW: 25 ~ 80
Model Name (ODU, 1Ø) (4/6 kW) HU041MR U20 HU061MR U20 (5/7/9 kW) HU051MR U44 HU071MR U44 HU091MR U44 HU121MA U33 HU141MA U33 HU161MA U33 HU161HA U33
Model Name (ODU, 3Ø) - - HU123MA U33 HU143MA U33 HU163MA U33 -
Model Name (IDU) (4/6 kW) HN0613M NK5 (5/7/9 kW) HN091MR NK5 HN1616M NK5 HN1636M NK5 HN1610H NK3

1) 5.5 & 7kW : profile L / 9 kW : profile XL
2) When a fan coil unit is not used.
3) DHW 50 ~ 80°C operating is available only when the electric heater is operating.
4) DHW 55 ~ 80°C operating is available only when the electric heater is operating.
*ODU : Outdoor Unit, IDU : Indoor Unit
**OAT : Outdoor Air Temperature, LWT : Leaving Water Temperature

Heat Pump FAQs

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Related Products


Monobloc is all in one solution without the need for additional indoor units. It’s only connected to a water tank so easy and simple to be installed.


LG THERMA V Hydrosplit cuts carbon emissions with great energy saving. It’s a simple and safe heat pump with water piping that connects to indoor units with a separate water tank or just one water tank integrated indoor unit.

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