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Air-to-water heat pumps HYDRO UNIT M monobloc type

28 of November '22

HYDRO UNIT M monobloc air-to-water heat pumps - the perfect combination of high efficiency and quiet operation of the unit

Air-to-water heat pumps are increasingly popular among individual investors. The increase in popularity is due to greater availability, rising fossil fuel prices, and growing confidence in the new technology and its performance among both those using and installing heat pumps. Also encouraging is the fact that the installation of heat pumps can be subsidized by the CLEAN AIR program, as well as benefit from the thermo-modernization tax credit, both of which complement each other.

HYDRO UNIT M 004-016 – wnętrze pompy ciepła

HYDRO UNIT M 004-016 - heat pump interior


The Beretta brand offers HYDRO UNIT M monobloc heat pumps for installation in single-family homes to meet space heating, cooling and hot water production needs.

HYDRO UNIT M is one of the most efficient monobloc heat pumps available on the market , combining a number of advantages: quiet operation, high energy efficiency (it is rated A+++ at 35°C and A++ at 55°C) and easy access to the unit's components. By using energy from renewable sources, the Beretta brand is concerned about the environment.

The unit includes a rotary compressor(Twin Rotary) with DC-Inverter technology, electronic expansion valve, fans with brushless EC motor and finned coil with hydrophilic coating to facilitate water drainage during the defrost cycle and minimize the possibility of evaporator coil freezing, as well as Blue Fin anti-corrosion coating. The heat pump is prepared to operate at outdoor temperatures as low as -25°C.

Pompa ciepła HYDRO UNIT M 004-006 ze sterownikiem

HYDRO UNIT M 004-006 heat pump with controller



  • INVERTER CONTROL PLATE maximizes power at critical load conditions and ensures stability and efficiency at partial loads.
  • AISI 316L STAINLESS STEEL HEAT EXCHANGER PLATE: protected by closed-cell anti-condensation insulation, ensures high heat transfer efficiency.
  • OPERATING PARAMETER CONTROL BOARD constantly analyzes the ambient temperature and water temperature to activate the various components and meet the heat/cooling demand.
  • HYDRAULIC MODULE consisting of an energy-saving circulating pump, expansion vessel, automatic relief valve and safety valve.
  • ELECTRONIC PRESSURE VALVE optimizes refrigerant flow continuously
  • DOUBLE ROTATING COMPRESSOR The design of the inverter system, which includes a double DC rotary compressor, fan motor and pump, ensures precise control of motor speed to achieve the right power required to perfectly match the current load, resulting in energy savings.
  • FAN VENTILATOR with special blade design enables optimization of air flow area, improving efficiency and reducing fan noise levels
  • HEAT EXCHANGER with large exchange area and aluminum fins

Akcesoria w zestawie z pompą

Accessories included with the pump



HYDRO UNIT M heat pumps use R32 refrigerant with a lower greenhouse effect potential (GWP) than traditional refrigerant gases. The use of R32 refrigerant, reduced refrigerant volume, lower CO2 emissions and increased energy efficiency are features that set HYDRO UNIT M apart, and save energy and protect the environment.


There are 10 HYDRO UNIT M models (7 single-phase and 3 three-phase) available from the Beretta brand. The heat pump can be installed as a stand-alone heat source or be part of a system. Thanks to the extensive equipment and available accessories, the installation of the unit is simple, the pump works more quietly and the whole system is more efficient.

Główne funkcje

Main functions



For all installations where the heat pump is not integrated into complex systems, it is possible to control it with the controller, which is included with the pump. This controller allows total control of the unit in an intuitive and user-friendly way. In addition, if necessary, if the temperature fell below the set temperature it will start an additional heat source, such as a condensing boiler.
The controller has a multi-language display (including Polish) and offers such functions as weekly programming, vacation and anti-freeze mode, as well as hot water management. It is also possible to manage units connected in a cascade system.

Możliwość dofinansowania z programu Czyste Powietrze

Possibility of subsidies from the Clean Air program



HYDRO UNIT M heat pumps can be combined in a cascade of up to six units to meet the heating, cooling and hot water requirements of apartment blocks and small commercial buildings. Each unit responds individually to the demand of the room in which it is installed.


  • The pump produces heat/cooling using renewable energy as much as possible with respect for the environment
  • The unit achieves an energy efficiency class of A+++ in low-temperature applications
  • HYDRO UNIT M guarantees performance stability by supplying water at a maximum temperature of 65°C over a wide operating range (-25°C to +43°C)
  • Pump responds quickly to demand, installation requirements
  • The pump increases the energy efficiency of the buildings in which it is installed, reduces operating costs and increases their value.
  • The device operates very quietly

Due to the high quality of the components used in the manufacture of the pump, Beretta offers a 3-year warranty on the unit and up to 5 years on the compressor. Warranty conditions can be found at or in the warranty card. For more information about the new unit, visit

Pakiet na piątkę

High-five package


About the Riello Group

Beretta is part of the Riello Group, which was founded in 1922, a leader in heating and air conditioning products and services. Headquartered in Legnago, Italy, Riello operates in more than 120 countries. Riello is part of Carrier, a leading global provider of innovative HVAC, refrigeration, fire protection, security and building automation technologies.

For more information, visit the company's RUG RIELLO Urządzenia Grzewcze S.A. page on the PdA portal.

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