Air source heat pump split VWL 125/5AS - 11.9 kW, 3-phase, 400 V, central heating unit uniTOWER VWL 128/5IS, recuperator VAR 360/4, sensoCOMFORT 720 controller 0010044172

Modern heating and cooling with the Vaillant aroTHERM Split heat pump

The Vaillant aroTHERM Split air/water heat pump is a comprehensive heating solution, ideal for both new and modernized buildings. The system combines high energy efficiency, quiet operation and user comfort, providing heating, cooling and domestic hot water preparation. The package includes an outdoor unit VWL 125/5AS, a heating center VWL 128/5IS (uniTOWER) and a sensoCOMFORT VRC 720 controller, creating a coherent and efficient system.

Comfort and efficiency in one system

Split technology offers a number of benefits. Two connected units – external and internal (uniTOWER) – allow for flexible installation, and the compact dimensions of the uniTOWER (integrated DHW tank with a capacity of 185 liters) save valuable space. The system is characterized by quiet operation, which is particularly important in densely built-up areas. In addition, the aroTHERM Split heat pump has an active cooling function, ensuring thermal comfort even on hot days. Thanks to cooperation with sensoCOMFORT controllers, it is possible to remotely control the system and integrate it with other Vaillant devices, such as photovoltaic systems or heat recovery ventilation.

Key features and advantages

• High efficiency: ErP A+++ class ensures low operating costs and reduction of harmful emissions.
• Quiet operation: Ideal for densely built-up areas – the sound power level of the outdoor unit is 60 dB(A).
• Compact design: The uniTOWER heating center takes up little space, and the integrated DHW tank ensures user comfort.
• Versatility: Heating, cooling and domestic hot water preparation in one system.
• Easy installation: The possibility of installing units up to 25 meters apart facilitates installation.
• Intelligent control: The sensoCOMFORT VRC 720 controller allows remote control of the system and integration with other Vaillant devices.
• Expandability: The system works with photovoltaics, heat recovery ventilation and solar water heating.
• High heating power: Heating power at 7/35°C is 11.9 kW, which ensures thermal comfort even in difficult weather conditions.
• Application of R410A refrigerant: Provides high performance and energy efficiency of the system.

Technical parameters in brief

The aroTHERM Split VWL 125/5AS heat pump operates on R410A and requires a connection voltage of 400 V. The COPd at a temperature of +7°C is 5.8, which proves the high energy efficiency of the device. The cooling capacity at temperatures of 35/18°C and 35/7°C is 12.78 kW and 8.69 kW, respectively. The weight of the outdoor unit is 181.5 kg and the indoor unit is 160 kg. The nominal diameter of the liquid line is 3/8 inch and the gas line - 5/8 inch. The device has remote control and room temperature control.