​Case Study: Energy-Efficient VRV Heat Recovery Installation at PALL Aerospace

Concept Cooling Ltd successfully delivered a 3-Pipe Heat Recovery VRV installation for PALL Aerospace, implementing a modern, energy-efficient climate control system capable of providing simultaneous heating and cooling across the facility.

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The project utilized advanced R32 refrigerant technology, helping reduce environmental impact while improving system efficiency and performance.

Concept Cooling designed and installed a Daikin VRV heat recovery system tailored to the building’s operational needs.​

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Outdoor Units:

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• 2 × Daikin REYA18A VRV outdoor units

• Total capacity of 45 kW cooling and 50 kW heating

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Indoor Units:

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• 8 × Daikin FXFQ125B Round Flow Cassette units

• Designed for optimal air distribution and flexible climate zoning

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The 3-pipe heat recovery configuration allows the system to redistribute heat between zones, meaning areas that require cooling can transfer heat to areas needing heating, significantly reducing wasted energy.

This project demonstrates how modern heat recovery VRV technology can transform building climate control by improving efficiency and operational flexibility.

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By combining advanced equipment from Daikin with the expertise of Concept Cooling Ltd, the installation delivers a high-performance, future-ready HVAC solution that supports both operational efficiency and sustainability goals.

PALL Aerospace required a reliable and energy-efficient HVAC solution to replace an older system that was consuming excessive energy and limiting temperature control flexibility across different areas of the building.

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Key requirements included:

• Improved energy efficiency

• Ability to heat and cool different zones simultaneously

• Consistent air distribution and comfort

• A future-ready system aligned with modern refrigerant standards

The installation was carefully planned to ensure minimal disruption to site operations while delivering a system optimized for performance and efficiency.

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The round flow cassette units were selected to provide:

• 360° airflow distribution

• Consistent temperature control

• Improved occupant comfort

Since installation, the site has reported noticeable energy savings compared to their previous HVAC system.

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Key benefits include:

• Reduced energy consumption

• Ability to simultaneously heat and cool different zones

• Improved temperature control across the building

• Lower environmental impact due to R32 refrigerant

• Enhanced occupant comfort and airflow distribution