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Air-to-water heat pump
HPSU monobloc

The compact all-in-one heat pump outdoor unit for flexible application.

The HPSU monobloc air-to-water heat pump for external installation offers comfortable heat in winter and gentle cooling in summer.




The heat pump can be placed unobtrusively on the outside of the building.

Simple and inexpensive installation

All hydraulic components are combined in a compact external unit.

For the health of your family

Thermal store ROTEX HybridCube with hygienic freshwater technology.

Future-proof and flexible

Direct combination with a solar system is possible and can be added anytime (with ROTEX HybridCube).

Product description

ROTEX HPSU monobloc

With the ROTEX HPSU monobloc, all hydraulic components are integrated into the outdoor unit.The compact unit is also supplied with a fully sealed unvented cooling circuit, so that the heating pipes run directly from the heat pump into the building. Because connections are only necessary on the water side, installation of the heat pump is exceptionally straightforward and rapid. Only the thermal store and the spare immersion heater (if applicable) need to be integrated into the building.


The perfect choice for new build

The amount of heating energy required by modern buildings is decreasing, and the required flow temperatures are lower, too. This is where the low temperature ROTEX HPSU monobloc heat pump comes into its own, be it in conjunction with low temperature radiators or an underfloor heating system. The
advantage of underfloor heating is that, due to the extremely large heating surface, it can make do with a low surface temperature. Plus, it can even cool the rooms during summer. 

Structure and function

Economical and quiet thanks to output modulating operation

The heat demand of a building varies very widely depending on weather conditions and utilisation patterns. The ROTEX HPSU monobloc heat pump employs inverter technology, which operates the compressor variably. In other words, the output of the heat pump is continuously adjusted to meet the demand.

Combined with a ROTEX thermal store you get maximum water hygiene and maximum comfort.

The ROTEX thermal store is a combination of domestic hot water tank and instantaneous water heater. The heat is not stored in the domestic hot water itself, but in the clearly separated tank water. The optimal storage layering always ensures the supply of hot water.

Maximum comfort with maximum water hygiene is guaranteed.

Energy efficiency class

September 2015: Energiy efficiency label now also for heating

Individual heat generators will each bear a product label. The efficiency of a heating system depends not only on the heat generator, but on several components. That is why the combination or package label was introduced. This covers the heat generator plus other components such as the controller, cylinders, solar thermal systems and/or an additional heat generator. The combination label is calculated from the efficiency values of the individual appliances and devices. Hooking up a solar thermal system is the most effective way to reach a higher overall system efficiency class.


Information about the energy efficiency labels

System additions

SolarUnderfloor heatingHP convector