Daikin EWYS-4Z

Specifications and technical data

Air Source (ASHP)CommercialR513A403.1 kW

Manufacturer	Daikin
Model	EWYS-4Z
Model code	EWYS4004ZXSB2
Heat pump type	Air Source (ASHP)
Application	Commercial
Refrigerant	R513A
Mode	Heating & cooling
Heating capacity	403.1 kW
COP (heating)	3.18 at Not stated
SCOP (heating)	3.21 at Not stated
Operating range (air)	-18 to 50 °C
Heating flow temperature	30–60 °C
Electrical supply	400V/3P/50Hz
Cooling capacity	393.1 kW
Cooling flow temperature	-8–20 °C
EER (cooling)	2.9 at A35/W7
SEER (cooling)	4.55 at W7
Dimensions (H×W×D)	2465 × 2285 × 5825 mm
Operational Weight	6075 kg
Sound power level	99 dB(A) (Sound power Lw(A))
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet

Notes

Daikin EWYS4004ZXSB2 polyvalent air-to-water heat pump, R513A, 403.1kW nominal heating / 393.1kW cooling, simultaneous heating and cooling, twin VFD single-screw compressors.

Standard-noise config (XSB2); reduced-noise XRB2 variant available (lower capacity, ~10dB quieter, ~3% higher weight). Water-to-water mode also available (TEER up to 7.88). Chilled water -8~20C, heating water 30~60C, ambient -18~50C. Cooling power input 135.55kW.

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.