Daikin EWWD-J-SS

Specifications and technical data

Water Source (WSHP)CommercialR134a308.4 kW

Manufacturer	Daikin
Model	EWWD-J-SS
Model code	EWWD250J-SS
Heat pump type	Water Source (WSHP)
Application	Commercial
Refrigerant	R134a
Mode	Heating & cooling
Heating capacity	308.4 kW
COP (heating)	5.17 at W35/W7
SCOP (heating)	4.46 at Not stated
Heating flow temperature	30–35 °C
Electrical supply	400V/3P/50Hz
Cooling capacity	255.3 kW
Cooling flow temperature	from -10 °C
EER (cooling)	4.26 at A35/W7
SEER (cooling)	5.09 at W7
Dimensions (H×W×D)	1020 × 913 × 2684 mm
Operational Weight	1600 kg
Sound power level	89 dB(A) (Sound power Lw(A))
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet

Notes

Daikin EWWD250J-SS water-cooled screw heat pump, R134a, 308.4kW nominal heating / 255.3kW cooling.

Cooling power input 59.9kW. Single screw compressor, stepless capacity control 25-100%. Sound pressure 79dBA. Intermediate/medium/high-temp application COP data also available (up to 65C water outlet on high-temp variant). Water in/out 12/7C evap, 30/35C cond, PHE evaporator/S&T condenser.

Where to buy (UK)

UK Supplier	The Heat Pump Warehouse
UK Supplier	Space Air
UK Supplier	City Plumbing

✓ Verified via Manual Verification data

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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.