Air source heat pump
Compact air source heat pump in monobloc design
Rated heating output
2.1 to 14.9 kW
Integral DHW cylinder
With 190 litre capacity
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 if a service is required
Heating and cooling in one
Low running costs due to high efficiency
COP (coefficient of performance) to EN 14511: up to 5.0 (at A7/W35)
60 % less space required
Compared to comparable models
Integrated energy management system
Ensures transparency in energy consumption and costs
Easy operation via ViCare app
Easy operation via ViCare app
Highly suitable for modernisation: Vitocal 151-A
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 151-A is perfectly suited for retrofit installations. Subject to a system design meeting industry regulations and best practice, together with a weather compensated heating system, it may be possible to retain existing radiators. High energy efficiency, convenient control via app, sustainable operation and attractive design are all convincing features.
Our integrated range of solutions for the Vitocal 151-A
Value added services, digital services, connectivity & platforms
The ViCare app provides intuitive heating control. Green for go – the user can see at a glance in the app whether their heating system is working as it should.More about the ViCare app
ViGuide is an app for trade partners. It has numerous functions for monitoring and controlling systems in both detached houses and apartment buildings and provides rapid access to Technical Service.More about the ViGuide app
Connectivity Inside is the integrated WiFi interface for operating and servicing systems using Viessmann apps.More about Connectivity Inside
Benefits of the Vitocal 151-A
Climate Protect+++ protects the environment and the climate
The new heat pumps in the Vitocal 15x series use the "green" refrigerant R290 (propane), which is considered particularly environmentally responsible with its very low GWP100 (global warming potential) of 0.02.
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 – for faster response time if a service is required
Thanks to mobile technology, the heat pumps in the Vitocal 15x series are always connected to Viessmann Service. Completely free of charge. The heat pump transmits any faults directly and without a time delay. The contractor can undertake the appropriate measures immediately. This eliminates unnecessary travel, which saves time and money.
One system for everything: Viessmann One Base
Users can easily track their sustainable use of electricity and heat via Viessmann One Base. The new platform is the basis for an expandable and futureproof energy system in every home.
You're always in the best of hands
All that is needed to communicate with Viessmann One Base is the free ViCare app; the integrated Viessmann Energy Management System does the rest. Viessmann One Base is operated quickly and easily via the app. The contractor can also keep a remote eye on the system and correct possible irregularities immediately by electronic means. This eliminates unnecessary travel and appointments with the trade partner.
Viessmann One Base makes the home more comfortable, efficient and futureproof.
Comfort at the touch of a finger: simple and convenient control of the energy system from anywhere.
All Viessmann systems and smart home solutions on one platform
With Viessmann One Base, the entire energy system is operated via just one app – simply, reliably and quickly. The new platform links all devices and electronic applications in the home into one single climate and energy solution. With beneficial consequences: lower energy consumption, a smaller carbon footprint and an overview of running costs that is always up to date. Viessmann One Base makes your own four walls fit for a climate friendly future!
Keeping track with the ViCare app
With the energy cockpit in the ViCare app, users can keep track of all the energy flows in their home. The analysis tool shows current and past levels of self-sufficiency and self-consumption.
Viessmann One Base – many benefits at a glance
- Comfort: Control the home energy system conveniently via app – at any time, from anywhere.
- Efficiency: Particularly efficient, cost-effective operation through networking and optimisation of energy flows.
- Safety: Automatic notification of system irregularities, together with online troubleshooting capability.
- Future viability: Future integration of all desired digital services, upgrades and product extensions such as PV with electricity storage and wallbox for e-mobility
- Rated heating output (kW), operating point A7/W35 (to EN 14511)
Type 151-A04: 4.0 kW | type 151-A06 4.8 kW | type 151-A08: 5.6 kW | type 151.A10: 7.3 kW | type 151.A13: 8.1 kW | type 151.A16: 9.1 kW
- Coefficient of performance ε (COP) A7/W35
Type 151-A04: 5.0 | type 151-A06 4.9 | type 151-A08: 4.7 | type 151.A10: 5.0 | type 151.A13: 4.9 | type 151.A16: 4.9
- Energy efficiency ƞs*
Energy efficiency ƞs at W35 in %: Type 151-A04: 185 | type 151-A06 180 | type 151-A08: 175 | type 151.A10: 190 | type 151.A13: 178 | type 151.A16: 178
*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 houses, modernisation projects
Heat pump control unit with 7 inch colour touchscreen, operation via ViCare app possible
- DHW heating
Integral DHW cylinder (190 l capacity)
- 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 instantaneous heating water heater | Integral heating water buffer cylinder and overflow valve
- Product cross-section, indoor unit
- Product cross-section, outdoor unit