LG THERMA V R410A Split (Hydro Box)

Specifications and technical data

Also known as: HU143MA U33, HU143 MA U33, HN1636M NK5 + HU143MA U33

Air Source (ASHP)ResidentialR410A14 kW

Manufacturer	LG
Model	THERMA V R410A Split (Hydro Box)
Model code	HU143MA.U33
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R410A All R410A heat pumps →
Mode	Heating & cooling
Heating capacity	14 kW
Max heating output (low temp)	12 kW at A2/W35
COP (heating)	4.41 at A7/W35
SCOP (heating)	4.61 at W35
Operating range (air)	-25 to 35 °C
Heating flow temperature	15–57 °C
Electrical supply	380-415V (Three Phase)
Cooling capacity	8.5 kW
Max cooling output (high temp)	8.5 kW at A35/W7
Cooling flow temperature	5–27 °C
EER (cooling)	2.81 at A35/W7
Dimensions (H×W×D)	1380 × 950 × 330 mm
Operational Weight	85.4 kg
Sound power level	64 dB(A) (Sound Power LW(A))
Data added	2026-09-24
Data source	Manufacturer specification page (LG UK)
Verification	Verified by a human
MCS certification	✓ MCS listed
MCS certificate no.	KIWA 00033/030 HP; KIWA 00033/047 HP

Free data sheet (PDF) →

Check noise at a neighbour’s window (MCS 020 a) →

View manufacturer page →

LG THERMA V HU143MA.U33, the 14 kW three-phase R410A split outdoor unit, paired indoors with the HN1636M hydro box. 14.0 kW at A7/W35 with a COP of 4.41 and SCOP 4.61 at W35 (A+++), 3.37 at W55 (A++). Reversible, 8.5 kW cooling at A35/W7. Flow to 57 C, operates down to -25 C. Three-phase.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	CoolEasy

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Data is compiled from manufacturer sources and may contain errors or gaps. Always confirm specifications with the manufacturer before making decisions.