Ochsner AIR HAWK 518 C11A

Specifications and technical data

Also known as: OCHSNER AIR HAWK 518 C11A

✓ BUS eligibleAir Source (ASHP)ResidentialR323.3–13.1 kW

Manufacturer	Ochsner
Model	AIR HAWK 518 C11A
Model code	287310V
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 and Cooling
Heating capacity	3.3–13.1 kW
Max heating output (low temp)	9 kW at A-7/W34
COP (heating)	4.82 at A7/W35
SCOP (heating)	5.04 at W35
Operating range (air)	-22 to 43 °C
Heating flow temperature	up to 65 °C
Electrical supply	380-415V (Three Phase)
Cooling capacity	7.97 kW
Max cooling output (high temp)	6.38 kW at A35/W7
EER (cooling)	3.84 at A35/W18
SEER (cooling)	5.43 at W18
Dimensions (H×W×D)	1261 × 1292 × 965 mm
Operational Weight	88 kg
Sound power level	53 dB(A) (Sound Power LW(A))
Data added	2026-07-29
Data source	Manufacturer datasheet
Verification	Verified by a human
Boiler Upgrade Scheme	✓ BUS eligible — Listed on the Ofgem BUS Product Eligibility List (24 Sep 2026). Grant also needs an MCS-certified installer and a qualifying system design. Funding guide
PEL certificate no.	BBA 0037/30
MCS certification	✓ MCS listed
MCS certificate no.	BBA 0037/30
MCS listing	View on MCS ↗

Free data sheet (PDF) →

Check noise at a neighbour’s window (MCS 020 a) →

View manufacturer page →

Inverter air/water heat pump with horizontal split evaporator. M2/M4 indoor unit houses compressor; outdoor unit is evaporator/fan only. OTS controller. R32 refrigerant. Suitable for buildings 8-14 kW heat load.

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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.