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Vitocal 350-G

Viessmann Light Commercial
Vitocal 350-G
Brine/Water Heat Pump

Vitocal 350-G

Viessmann Vitocal 350‑G – High-Temperature Ground Source Heat Pump
Powerful brine-to-water and water-to-water heat pump delivering up to 104.6 kW, designed for residential, commercial, and multi-residential applications. Featuring flow temperatures up to 70°C, advanced EVI technology, exceptional efficiency, and flexible master/slave configurations for high heating demands.

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Features

  • High Heating Capacity

    Suitable for medium and large-scale heating applications Available in single-stage and two-stage configurations Delivers outputs up to 104.6 kW Ideal for demanding heating and DHW systems

  • EVI Technology for High Flow Temperatures

    The Enhanced Vapour Injection (EVI) refrigeration cycle enables: Flow temperatures up to 70°C Improved efficiency at high operating temperatures Better performance for radiator systems Excellent modernization capabilities

  • Ideal for Modernization Projects

    Existing radiators can often be retained Suitable for high-temperature heating systems Reduces the need for major building modifications Excellent alternative to oil and gas boilers

  • Outstanding Energy Efficiency

    COP up to 5.0 (B0/W35) Low operating costs Efficient use of renewable ground or groundwater energy High seasonal performance

  • Refrigerant Cycle Diagnostic (RCD) System

    Continuous monitoring of refrigeration circuit performance Electronic Expansion Valve (EEV) optimization Maximum operating efficiency at all load conditions Enhanced system reliability

  • Mono-Mode Operation

    Can operate as the sole heat source Suitable for: Space heating Domestic hot water production Reduces dependency on supplementary heating systems

Technical Documents

Document Name Description Document Type Language Action
Technology Brochure PDF German Download

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