Hybrid heat pump
The Vitocal 250-AH is an air source heat pumps in monoblock design, prepared for hybrid operation with external heat generator up to 30 kW.
Highly suitable for modernisation
With 70 °C flow temperature (at an outside temperature down to -10 °C)
Climate Protect +++: Protects the environment and the climate
Environmentally responsible, natural refrigerant R290 (propane) with a particularly low GWP100 (Global Warming Potential) of 0.02
Reliable operation with high efficiency
Guaranteed faster response time during maintenance
Whisper-quiet operation means it can be placed anywhere on the property
Low running costs due to high efficiency
COP (coefficient of performance) to EN 14511: up to 5.3 (at A7/W35)
60% less space required
Compared to comparable models
Heating and cooling in one
Integrated energy management system
Ensures transparency in energy consumption and costs
For easy operation
Straightforward integration into the existing heating system
Including the existing heat generator
Highly suitable for modernisation: Vitocal 250-AH
The new generation of heat pumps
Reliable, compact and more environmentally responsible than ever – the new, innovative heat pump technology from Viessmann makes particularly efficient use of environmental energy for heating and cooling. With a flow temperature of up to 70 °C, the Vitocal 250-AH was specially developed for modernisation projects. Existing radiators can continue to be used. Underfloor heating is not essential. High energy efficiency, convenient control via app, sustainable operation and attractive design are all convincing features.
Works well in combination with existing heating systems
The Vitocal 250-AH version is particularly suitable for supplementing an existing heating system. The heat pump provides the base load in that case. The boiler is only switched on at especially low temperatures.
Benefits of the Vitocal 250-AH
Climate Protect+++ protects the environment and the climate
The new heat pumps in the Vitocal 25x series use the "green" refrigerant R290 (propane), which is considered particularly environmentally responsible with its very low GWP100 (Global Warming Potential) of 0.02.
Eco Select – switch between the most cost effective or the most sustainable operating mode
Hybrid units from Viessmann use Hybrid Pro Control®. This integrated energy manager controls the heating system according to external conditions such as the outside temperature or flow temperature, and to suit individual user settings. These can be energy prices, the amount of self-generated power, CO2 emissions or the heat demand. Users can select, for example, whether the appliance automatically uses the currently cheapest energy source in economy mode. Or whether it runs in ecological mode with the lowest CO2 emissions per kilowatt hour of heating energy generated.
OptiPerform – reliable operation with maximum efficiency
The advanced heat pumps from Viessmann work with a patented hydraulic system. With Hydro AutoControl®, the heat pump is operated reliably and with maximum efficiency throughout its entire service life. The unique design not only ensures that your contractor can set up the heat pump with OptiPerform much faster and, therefore, more cost effectively. It also takes up much less space because it is up to 60 percent smaller than comparable systems.
Service link - quick service response times
Heat pumps with a service link use wireless technology to automatically notify the trade partner of any possible faults. Completely free of charge. This eliminates unnecessary travel, as on-site servicing is quicker. Saving time and money.
Super Silent – whisper-quiet in full and partial load operation
Viessmann heat pumps are among the quietest of their kind thanks to advanced acoustic design+, and include a sound-optimised fan. Combined with intelligent speed control, it significantly reduces airborne noise in both full and partial load operation. As a result, the outdoor unit can be installed even in densely built-up areas such as terraced housing or close to the property boundary.
- Rated heating output (kW), operating point A7/W35 (to EN 14511)
Type 252.A10: 7.3 kW | type 252.A13: 8.1 kW
- Coefficient of performance ε (COP) A7/W35
Type 252.A10: 5.3 | type 252.A13: 5.2
- Energy efficiency ƞs*
Energy efficiency ƞs at W35 in %: Type 252.A10: 197 | type 252.A13: 181
*Heating performance data in line with Commission Regulation (EU) No 813/2013 under average climatic conditions for low temperature application (W35) and medium temperature application (W55)
- Energy efficiency class, DHW heating
- Application area
Detached/two-family house, modernisation
Heat pump control unit with 7 inch colour touchscreen, operation via ViCare app possible
- DHW heating
Additional DHW cylinder required, resulting in a high level of DHW convenience.
- Additional features
For room heating/cooling and DHW heating | Maximum flow temperature: 70 °C (at an outside temperature of down to -10 °C) | Monoblock indoor unit with heat pump control unit, high efficiency circulation pump for the secondary circuit, 4/3-way valve, safety assembly | Integral hybrid hydraulics and interfaces for controlling the external heat generator | Integral heating water buffer cylinder and overflow valve
- Product cross-section, indoor unit
- Product cross-section, outdoor unit