Air - Water

OCHSNER AIR HAWK 1850

24 - 51 kW

The highly efficient high end heat pump is suitable for buildings with heat loads between 24 and 51 kW. Up to four units can be connected as fully modulating units in a cascade and therefore cover heat loads of up to 160 kW, for example in apartment buildings, or commercial or office buildings. The AIR HAWK 1850 is impressive in its output category with particularly low noise emissions. It works with a speed controlled compressor and delivers heat and DHW up to 60°C; it can also be used for energy saving surface cooling and for active air conditioning and room dehumidification via fan coils. It is equipped with a climate friendly refrigerant and has received the Energy Genius 2023 innovation award. The OCHSNER TRONIC SMART (OTS) control system enables the AIR HAWK 1850 to be controlled conveniently via an app. The AIR HAWK series was honoured with the Plus X Award in the categories innovation, high quality, ease of use, functionality and ecology. This model was also certified "Best Product of the Year 2025".

Climate zone (middle)
Energy efficient
A+++Energy efficiency class (D to A+++)
40 kWP rated
186.3 %Efficiency ETAs
39.7 dB(A)Sound pressure level (at 3 m)

Suitable for

Apartment and commercial buildings
Underfloor heating
Radiators up to 60°C

Technical details AIR HAWK 1850

A7/W35

Heating output (EN14511)
20.69 kW
Power consumption (EN14511)
3.94 kW
Coefficient of performance COP (EN14511)
5.24

Energy efficiency (average climate zone)

at max. flow temperature (heating)
35 °C
Energy efficiency class (D to A+++)
A+++
P rated
40 kW
Efficiency ETAs
186.3 %
SCOP
4.74

Indoor unit

Dimensions (HxWxD)
1287x600x680 mm
Weight (excl. packaging)
206 kg

Outdoor unit

Dimensions (HxWxD)
1461x2268x1070 mm
Weight (excl. packaging)
300 kg
Sound pressure level (at 3 m)
39.7 dB(A)
Sound power level (EN12102)
57 dB(A)

Electrical data

Phases/nominal voltage/frequency
3/~380-400/50 ~/V/Hz
Variable speed compressor
Refrigerant R32
Heating or heating/cooling
Max. Vorlauftemp. 60 °C60 °C Max. flow temp.
OTS-ReglerOTS controller
SG Ready

OCHSNER AIR HAWK More models of the series

AIR HAWK 208

6 - 10 kW
AIR HAWK 208
incl. horizontal split evaporatorRefrigerant R513AOTS controller
Energy efficiencyA+++
P rated6 kW
Efficiency175.2 %
Lₚ at 3 m28 dB(A)
65 °C Max. flow temp. | OTS controller | SG-Ready

AIR HAWK 518

9 - 14 kW
AIR HAWK 518
incl. horizontal split evaporatorRefrigerant R32OTS controller
Energy efficiencyA+++
P rated12 kW
Efficiency198.7 %
Lₚ at 3 m35.5 dB(A)
65 °C Max. flow temp. | OTS controller | SG-Ready

AIR HAWK 616

6 - 16 kW
AIR HAWK 616
incl. horizontal split evaporatorRefrigerant R32OTS controller
Energy efficiencyA+++
P rated13 kW
Efficiency197.7 %
Lₚ at 3 m35.7 dB(A)
65 °C Max. flow temp. | OTS controller | SG-Ready

AIR HAWK 726

18 - 22 kW
AIR HAWK 726
incl. horizontal split evaporatorRefrigerant R32OTS controller
Energy efficiencyA+++
P rated17 kW
Efficiency198.6 %
Lₚ at 3 m31.6 dB(A)
65 °C Max. flow temp. | OTS controller | SG-Ready