Daikin Altherma 3 R (ERLA14D2W1)

Specifications and technical data

Air Source (ASHP)ResidentialR3212.5 kW

Manufacturer	Daikin
Model	Altherma 3 R
Model code	ERLA14D2W1
Heat pump type	Air Source (ASHP) All Air Source heat pumps →
Application	Residential All Residential heat pumps →
Refrigerant	R32 All R32 heat pumps →
Mode	Heating & cooling
Heating capacity	12.5 kW
Max heating output (low temp)	12 kW at A7/W35
COP (heating)	4.87 at A7/W35
SCOP (heating)	4.68 at W35
Operating range (air)	from -25 °C
Heating flow temperature	up to 60 °C
Electrical supply	380-415V (Three Phase)
Cooling capacity	13.3 kW
Max cooling output (high temp)	13.1 kW at A35/W7
EER (cooling)	3.02 at A35/W7
SEER (cooling)	5.89 at EN 14825 (flow temp not stated)
Dimensions (H×W×D)	870 × 1100 × 460 mm
Operational Weight	101 kg
Sound power level	62 dB(A) (Sound Power LW(A))
Data added	2026-09-13
Data source	Manufacturer specification table (Daikin UK)
Verification	Verified by a human

Free data sheet (PDF) →

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Daikin Altherma 3 R ERLA14D2W1: 12.5 kW, R32, three-phase supply. Split-system outdoor unit for the Daikin Altherma 3 R, medium temperature range, capacity class 14 kW. Pairs with a separate indoor hydrobox or integrated cylinder unit, which is where the rated output and efficiency are declared. R-32 refrigerant, 3.8 kg factory charge. Leaving water up to 60 °C, down to -7 °C ambient.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Space Air
UK Supplier	City Plumbing
UK Supplier	The Underfloor Heating Store

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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.