
Poyraz series heat pump
R290 heat pump for regions where winters stay around −7 °C. 12, 14 and 16 kW models, leaving water up to 55 °C.

R290 + R134a cascade heat pump for Eastern Anatolia and high altitude. 75 °C water at −30 °C outdoor air, 12–16 kW, buffer tank inside.
Ayaz is our solution for the coldest climates in the range: for extremely cold, high-altitude places where a single-stage heat pump struggles and efficiency falls. Two refrigerant circuits work in series: the R290 circuit in the first stage takes heat from the outdoor air, and the R134a circuit in the second stage raises the water to 75 °C. Its design point is A −30 / W 75; it delivers 75 °C water even at −30 °C outdoor air.
75 °C water makes it possible to switch to a heat pump without any change to a radiator system that runs on a boiler. Ayaz takes the place of the existing boiler one to one; that is why it is preferred in boiler replacement projects and for radiators that need high water temperatures.
The buffer tank and hydraulic components are inside the package casing. The tank, pump and safety group are not connected separately on site; fewer parts have to be installed, installation takes less time and the risk of errors in the pipework is lower.
Provinces with a winter design temperature below −20 °C, such as Kars, Erzurum and Sivas, high-altitude settlements, mountain hotels and highland resorts are the typical projects for this series. It is also used in process heating applications that need water above 70 °C. It runs stably at high altitude and can be monitored and controlled remotely.
The capacities (12, 14 and 16 kW) are the values at −30 °C outdoor air. The model is determined by the heat loss, which depends on how well the building is insulated, the orientation of its façades and how it is used. Sharing the calculation or the consumption of the existing boiler is enough.
Scroll the table sideways
| Model | Ayaz 12 | Ayaz 14 | Ayaz 16 |
|---|---|---|---|
| Heating capacity, −30 °C outdoor air (kW) | 12 | 14 | 16 |
| Design operating point | A −30 / W 75 | A −30 / W 75 | A −30 / W 75 |
| Max. leaving water temperature (°C) | 75 | 75 | 75 |
| Refrigerant | R290 + R134a | R290 + R134a | R290 + R134a |
| Cycle type | Two-stage (cascade) | Two-stage (cascade) | Two-stage (cascade) |
| Unit type | Hybrid package, buffer tank included | Hybrid package, buffer tank included | Hybrid package, buffer tank included |
| Compressor | DC inverter | DC inverter | DC inverter |
Tell us the model and the project; we will help you choose the right capacity.
After installation, this product is serviced and maintained by our group company Aktek Elektromekanik. Service by Aktek Elektromekanik

R290 heat pump for regions where winters stay around −7 °C. 12, 14 and 16 kW models, leaving water up to 55 °C.

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