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Mitsubishi Electric City Multi VRF & CAHV Heat Pump Boiler Installation

Mitsubishi Electric City Multi VRF & CAHV Heat Pump Boiler Installation - Sparsholt College HE Building, Hampshire

The Challenge

Air Control were appointed by IDC Mechanical & Electrical Engineer to deliver the air conditioning and low-carbon hot water installation for Sparsholt College’s new Higher Education (HE) Building in Hampshire.

The project required a modern, energy-efficient HVAC solution capable of providing reliable heating, cooling, and sustainable hot water generation across a new educational facility. The building needed to support student comfort, operational efficiency, and long-term sustainability goals.

As part of a coordinated mechanical services strategy, the installation required close collaboration with IDC and other contractors to ensure seamless integration within the wider M&E design.

The Requirements

The new HE Building required a high-performance Mitsubishi Electric VRF air conditioning system to provide:

  • Year-round heating and cooling
  • Quiet operation suitable for classrooms
  • Independent zone control
  • Excellent seasonal efficiency

In addition, the College required a sustainable alternative to traditional gas-fired hot water systems. A low-carbon air source heat pump solution was needed to deliver high-temperature hot water while reducing energy consumption and supporting decarbonisation objectives.

Reliability, ease of control, and long-term maintainability were key considerations for the facilities management team.

The Solution

Mitsubishi Electric City Multi VRF System

Air Control designed and installed multiple Mitsubishi Electric City Multi VRF heat pump systems, incorporating PUMY-P250YBM2 outdoor units to deliver efficient heating and cooling throughout the HE Building.

All internal units were 4-way ceiling cassette fan coils, selected for their even 360° air distribution and low noise levels. Their recessed design ensures a discreet finish, maintaining the modern architectural aesthetic of the building while providing precise temperature control across teaching and communal spaces.

The inverter-driven VRF system delivers energy-efficient performance, adapting output to demand and helping reduce operational costs.

Mitsubishi Electric CAHV Air Source Heat Pump Boilers

To provide low-carbon hot water, Air Control installed two Mitsubishi Electric CAHV-R450YA-HP air source heat pump boilers.

These high-efficiency heat pump boilers:

  • Utilise renewable energy from ambient air
  • Produce high-temperature domestic hot water
  • Reduce carbon emissions compared to conventional systems
  • Support sustainable building performance standards

The CAHV units were fully integrated into the building’s mechanical infrastructure, ensuring reliable and energy-efficient hot water supply for the HE facility.

By combining Mitsubishi Electric VRF air conditioning with air source heat pump boiler technology, Air Control delivered a fully integrated commercial HVAC solution aligned with modern energy and sustainability requirements.

The Result

The completed installation provides Sparsholt College’s HE Building with a reliable, energy-efficient climate control and hot water system designed for long-term performance.

Teaching and communal areas benefit from quiet, evenly distributed heating and cooling, while the CAHV air source heat pump boilers deliver sustainable, high-temperature hot water with reduced environmental impact.

This project demonstrates Air Control’s expertise in commercial air conditioning, VRF systems, and renewable heating solutions for educational buildings across Hampshire and the South Coast. Working in partnership with IDC Mechanical & Electrical Engineer, the installation was delivered to a high technical standard and in line with programme requirements.

“Air Control delivered the installation at Sparsholt College’s new HE Building to an exceptionally high standard. The workmanship throughout was excellent, with clear attention to detail and quality. The Mitsubishi Electric City Multi VRF and CAHV heat pump boiler systems were installed professionally and integrated seamlessly with our wider mechanical services. Their technical expertise and collaborative approach make them a trusted partner on our projects.”

Jon Husslebee MD, IDC Mechanical & Electrical

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