Vitocal 300-A

Viessmann Light Commercial
Vitocal 300-A
Air-Source Heat Pumps

Vitocal 300-A

Viessmann Vitocal 300‑A – High-Capacity Air Source Heat Pump
Powerful air-to-water heat pump for commercial and large residential applications, delivering 13.2 to 55.8 kW with two-stage operation, flow temperatures up to 64°C, and cascade capability up to 279 kW.

Features

High Heating Capacity

Outputs from 13.2 to 55.8 kW Suitable for large heat demands Designed for commercial and multi-residential applications Delivers reliable year-round heating performance

Two-Stage Compressor Technology

Equipped with two compressors Optimized operation at both full and partial loads Approximately 70% of annual heating demand is typically covered under partial-load conditions Higher efficiency during everyday operation Reduced energy consumption and operating costs

Excellent Energy Efficiency

COP up to 4.3 (A7/W35) High seasonal efficiency Reduced electricity consumption Lower lifecycle operating costs

Commercial Application Ready

Ideal for: Office buildings Commercial facilities Apartment buildings Institutional properties Designed for larger heating loads Suitable for centralized heating systems

High Flow Temperatures

Flow temperatures up to 64°C Reliable operation even at outdoor temperatures down to -22°C Compatible with: Radiator systems Domestic hot water production Existing heating systems

Efficient Defrosting

Automatic refrigerant circuit reversal Fast and reliable defrosting Maintains system performance in winter conditions Improved operational efficiency

Control / Integrations

Vitotronic 200 Control Unit

Wall-mounted indoor controller
Plain text and graphic display
User-friendly operation
Fast commissioning and system adjustment

Cascade Management

Integrated cascade control functionality
Coordinates up to five heat pumps
Balances heating demand automatically
Maximizes system efficiency

Automatic Hybrid Operation

Can operate alongside:
Oil boilers
Gas boilers
Existing heating systems
Automatically starts secondary heat source when required
Supports bivalent heating systems

Vitoconnect Integration

Internet connectivity interface
Smartphone and tablet access
Remote monitoring and control
Cloud-based connectivity

ViCare App

Homeowner control via smartphone
Temperature adjustment
Operating status monitoring
Remote convenience and control

ViGuide Platform

Professional installer monitoring
Advanced diagnostics
Remote service support
Faster maintenance response

Vitocom Compatibility

Supports:

Vitocom 100
Vitocom 300
For telecontrol, monitoring, and optimization of the heat pump system.

Technical Documents

Document Name Description Document Type Language Action
Technology Brochure - Heat Pumps PDF German Download

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Air source heat pump for indoor and outdoor installation. Nominal heating power: 12.7 – 20.6 kW

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