Daikin EWYT-B

Specifications and technical data

Air Source (ASHP)CommercialR32256 kW

Manufacturer	Daikin
Model	EWYT-B
Model code	EWYT255B-SS
Heat pump type	Air Source (ASHP)
Application	Commercial
Refrigerant	R32
Mode	Heating & cooling
Heating capacity	256 kW
COP (heating)	2.94 at Not stated
SCOP (heating)	3.29 at Not stated
Operating range (air)	-20 to 46 °C
Heating flow temperature	20–60 °C
Electrical supply	400V/3N/50Hz
Cooling capacity	230 kW
Cooling flow temperature	-13–20 °C
EER (cooling)	2.66 at Not stated
SEER (cooling)	3.9 at Not stated
Dimensions (H×W×D)	1800 × 1195 × 3225 mm
Operational Weight	2100 kg
Sound power level	91.7 dB(A) (Sound power Lw(A))
Data added	2026-07-07T00:00:00
Data source	Manufacturer Data Sheet

Notes

Daikin EWYT255~B-SS modular air-cooled chiller/heat pump, R32, 256kW nominal heating / 230kW cooling, scroll compressors.

Refrigerant charge 43kg. Standard sound config (SS); low-noise SL variant available, ~10kg heavier, ~1dB quieter. SR (reduced recovery) config similar capacity, slightly lower EER/COP. Premium high-efficiency XS/XL/XR configs also available (higher EER/COP, larger size range 085-650).

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.