Viessmann Vitocal 151-A

Air-to-water compact heat pump with integrated 190 l cylinder: 2.6 – 14.9 kW, R290, flow temperature up to 70 °C.

The Vitocal 151-A is an air-to-water compact heat pump that uses the same monobloc outdoor unit as the Vitocal 150-A, but its indoor unit includes an integrated 190 litre steel cylinder with Ceraprotect enamel coating. With a flow temperature of up to 70 °C it is very well suited to modernisation: existing radiators can continue to be used and underfloor heating is not mandatory.

The natural refrigerant R290 (propane) has a very low GWP100 of 0.02. The patented Hydro AutoControl® hydraulics (OptiPerform) ensure reliable, highly efficient operation over the entire service life and need up to 60 % less space than comparable systems. An active cooling function is available in summer.

The unit is operated with the Viessmann One Base platform and a 7-inch colour touch display, either directly on the unit or via the ViCare app. Thanks to mobile communication technology the unit is always connected to Viessmann Service free of charge and reports any faults without delay.

Key features

• Air-to-water compact heat pump with integrated cylinder (monobloc), for space heating/cooling and domestic hot water
• 190 l integrated cylinder (steel, Ceraprotect enamel); draw-off profile XL, heating energy efficiency class A++ (system)
• Maximum flow temperature 70 °C (at outdoor temperatures down to –10 °C)
• COP (EN 14511, A7/W35) of up to 5.0
• Indoor unit with heating water instantaneous heater, 16 l buffer, 10 l expansion vessel, high-efficiency circulation pump, 4/3-way valve and safety assembly
• Integrated energy management system, easy operation via the ViCare app
• Active cooling

Models

• 151.A10 (230 V or 400 V): 7.3 kW rated heat output (A7/W35)
• 151.A13 (400 V): 8.1 kW
• 151.A16 (400 V): 9.1 kW

Indoor unit dimensions (W x H x D): 600 x 1900 x 597 mm, weight 170 kg.