What is Hybrid VRF?

Hybrid VRF is an air conditioning system for large scale applications. It’s a 2-pipe heat recovery VRF with water between the Hybrid Brand Controller (HBC) and indoor units,

HVRF is a quick, easy and flexible to design and install using the same control and network as VRF systems. The decentralised system means phased installation is possible with the same high levels of seasonal efficiency expected with VRF.

Hybrid VRF provides comfortable and stable air temperature control without refrigerant in occupied spaces; removing the need for leak detection.

The Ultimate Guide to Hybrid Air Conditioning

Benefits of HVRF Air Conditioning Systems

Optimal energy efficiencies

A high efficiency system, delivering outstanding seasonal energy performance. A gradual change in temperature provides a comfortable and stable environment.

Reduced running costs

Less maintenance is required than normal HVAC solutions due to the advanced technology and design of HVRF systems.

Lower carbon emissions

Running as a highly efficient system means lower energy consumption, reducing the carbon footprint of buildings.

Flexible application options

Air Source YNW (22-56kW) - Using the latest City Multi VRF YNW technology, including an aluminium heat exchanger, reduced weight and improved seasonal efficiency.

Water Source YLM (22-56kW) - Ideal where outdoor space is limited, building heat recovery and efficiency is demanded and a water loop is is available.

Less refrigerant

Reduced quantity of lower GWP R32 refrigerant – a 50% refrigerant charge reduction when compared to VRF & Leak Detection.

Features of City Multi HVRF

  • Wide range of connectable indoor units
  • Valves, pumps and heat exchangers are all contained within the HBC
  • Horizontal and vertical branch controllers for greater flexibility in system design
  • System can be expanded using sub-HBCs
  • HBC makes simultaneous heating and cooling possible
  • Manageable phased installation ideal for Cat A to Cat B and retrofit.
  • Used for 22kw to 56 kw systems

Our award-winning system is the world’s first R32 Hybrid VRF air conditioning solution.

HVRF systems By Sector

A Hybrid Branch Controller (HBC) is at the heart of the Hybrid VRF system. Each HBC can be expanded by using Sub HBCs, supporting up to 50 indoor units. These units come in a variety of types, including ceiling concealed ducted, ceiling cassette, wall, or floor mounted, catering to each retailer’s design requirements.

Hybrid VRF provides stable air temperature control for hotel guests without requiring refrigerant in occupied spaces. This simplifies compliance with BS EN 378 and eliminates the need for expensive leak detection systems.

With refrigerant removed from occupied spaces, a Hybrid VRF system provides stable temperature control, ensuring optimal comfort levels for patients and medical teams at all times.

City Multi Hybrid VRF combines high levels of comfort control with energy efficiency, producing savings of up to 30% over traditional heat pump systems.

Hybrid VRF is ideal for modern, airtight high-rise buildings, combining the comfort of a traditional chiller with the efficiency and ease of VRF air conditioning. By utilising lower GWP R32 refrigerant, property developers and owners can achieve their CSR targets and future-proof their buildings.

The flexible design makes Hybrid VRF ideal for offices, as the decentralised system allows for both phased installation and easy adaptations when reconfiguring office internal layouts. As the refrigerant is only present from the outdoor unit to the HBC, there is no requirement to de-gas, making it perfect for Cat A to Cat B fit-outs.

Many educational facilities need a highly controllable and energy-efficient HVAC system to overcome the solar gain that can overheat a classroom and disrupt learning. A Hybrid VRF system will simultaneously heat and cool individual classrooms, providing the desired room temperature in which to best learn.

Why choose Mitsubishi Electric?

Excellent customer support

We pride ourselves on our various levels of customer support, helping you find the right HVAC solution for you.

Our Ask Me campaign allows you to enquire more about our wide array of HVAC products to find your ideal system.

Our Partner Programme assures end users of a consistently high level of installation and after sales service that supports our systems. We will train, facilitate and promote all qualifying companies as part of our aim to drive the industry forwards.

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Reduce carbon emissions

HVRF utilises lower GWP R32 refrigerant, which reduces the environmental impact of HVAC systems. Using HVRF can help clients reach their Corporate Social Responsibility targets by contributing to a cleaner environment.

R32 has 65% lower GWP and up to 80% CO2 reduction compared to R410A.

Operational Carbon image

Looking for help with installation?

If you need help with your Air Conditioning project, check out our Find An Installer page and get in touch with one of our trusted installer and technician partners.


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Frequently Asked Questions

How does a Hybrid VRF system work?

City Multi Hybrid VRF is a 2-pipe heat recovery VRF with water between the Hybrid Branch Controller (HBC) and indoor units. You can install and design it as VRF whilst enjoying the features of a Chiller system.

What is the difference between HVRF and VRF?

HVRF and VRF systems are very similar, however, the main difference is that HVRF uses both water and refrigerant whereas VRF solely uses refrigerant.

What are the benefits of HVRF?

There are many benefits of using a HVRF system, such as reduced carbon emissions, low running costs and less refrigerant which makes compliance easier.

What is an HBC Controller?

A Hybrid Branch Controller (HBC) makes simultaneous heating and cooling possible. They are available as a 6, 8 or 16 port model. Valves, pumps and the heat exchanger are all contained with the Main-HBC allowing for phased, manageable installation – ideal for CAT A to CAT B applications.

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Mitsubishi Electric is a world-leading supplier of energy efficient equipment that will cool, heat, ventilate and control buildings.

We supply not only the equipment but continued support throughout the lifecycle of all products whether that is in commercial and industrial properties or homes.


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Mitsubishi Electric has a vast product range that includes VRF air conditioning and chillers. Our Product Catalogue has our complete range of current products, including technical specification, so for more information please download this.

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Or if you would like a simple overview of our product range and suitable applications, please download our Product Application infographic.

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Mitsubishi Electric offers solutions that deliver the quality and excellence you would expect from a world-leading supplier. We can support you every step of the way whether pre-sales design and specification, installation and commissioning, or service and maintenance, right through to recycling.

For domestic heating service and maintenance, download our brochure below.

For commercial service and maintenance support download our brochure below, use the enquiry form on the right, or contact: 

 

London and the South:

melserve.south@meuk.mee.com

Midlands and Wales:

melserve.midlands@meuk.mee.com

North England and North Wales:

melserve.north@meuk.mee.com

Scotland:

melserve.scotland@meuk.mee.com

 

National Enquiries Telephone: 01707 278650

National Email: melserve@meuk.mee.com

National Spares: 01707 278650 (Option 5)

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