Daikin EWYS-4Z

Specifications and technical data

Air Source (ASHP)CommercialR513A790.3 kW

Manufacturer	Daikin
Model	EWYS-4Z
Model code	EWYS8004ZXSB2
Heat pump type	Air Source (ASHP)
Application	Commercial
Refrigerant	R513A
Mode	Heating & cooling
Heating capacity	790.3 kW
COP (heating)	3.35 at Not stated
SCOP (heating)	3.49 at Not stated
Operating range (air)	-18 to 50 °C
Heating flow temperature	30–60 °C
Electrical supply	400V/3P/50Hz
Cooling capacity	765.7 kW
Cooling flow temperature	-8–20 °C
EER (cooling)	2.99 at A35/W7
SEER (cooling)	5.11 at W7
Dimensions (H×W×D)	2465 × 2285 × 8525 mm
Operational Weight	9430 kg
Sound power level	102 dB(A) (Sound power Lw(A))
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet

Notes

Daikin EWYS8004ZXSB2 polyvalent air-to-water heat pump, R513A, 790.3kW nominal heating / 765.7kW 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 256.09kW.

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.