VENTILATION & AIR HANDLING


Decentralised ventilation unit for large indoor spaces


Refined control for multi-zone airflow systems


Targeting both residential and commercial applications, PANASONIC HEATING & COOLING SOLUTIONS has introduced the PACi NX Multi Zone Duct as part of its PACi NX indoor unit range. The system distributes conditioned air across multiple areas, supporting up to five zones within a single installation. Each outlet is equipped with its own fan and motor, allowing independent temperature adjustment in different spaces. The configuration removes the need for


bypass ducts commonly found in conventional ducted systems. This approach reduces installation complexity


and allows more direct control over airflow in each zone. The unit can be installed in either horizontal or vertical orientations, providing flexibility for different building layouts. Built-in Wi-Fi enables connection to


the Aquarea Home app, offering centralised control of all zones through a single interface. The inclusion of Modbus supports integration with wider building management systems. The PACi NX Multi Zone Duct is compatible with standard outdoor units and operates across a capacity range of 7.1kW to 14.0kW. ▄ www.aircon.panasonic.eu


Ultra-slim climate control in cramped spaces


Now available from ZEHNDER is the EVO – a Passivhaus certified, ultra-slim mechanical ventilation with heat recovery (MVHR) system designed to overcome installation challenges in confined spaces. Featuring a minimalist design (approx. 210mm in depth), the EVO is designed for installation in ceilings, pitched roofs, slimline cupboards or service voids. The MVHR is purpose-built to be mounted either on ceilings or walls, horizontally, vertically or at an angle and features flexible bi-directional spigots to ensure smooth air flow at any angle as well as a double-rotating condensate drain so no inclination is required. Where previously specifiers had


viewed indoor environments with significant space constraints as potentially unviable or more challenging for MVHRs, the flexibility and size of the Zehnder EVO changes everything - particularly for offsite-built projects such as POD manufacturing and modular housing. The system offers a heat recovery efficiency rate of up to 90%, ensuring minimal heat loss. The system also includes a 100% summer bypass function, which helps to reduce overheating in the


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Heat recovery air handling unit with reduced-carbon design


Claimed to be its most sustainable heat recovery air handling unit to date, VES has launched Ecovent Midi, which delivers reductions in both embodied and operational carbon, without compromising airflow performance or regulatory compliance. The unit has been engineered to


summer months. Stuart Smith, commercial director, says:


“Zehnder EVO will open up the world of MVHR to builds that otherwise would have proved too challenging in terms of size and space. It’s one of the most versatile products in our range.” ▄ www.zehnder.co.uk/zehnder-evo


reduce embodied carbon through material selection and structural design. Using independently verified CIBSE TM65 methodology, it achieves up to a 62% reduction in embodied carbon in size 4 and 54% in size 5 compared with previous designs. These reductions are due in part to the use of XCarb steel, which is produced using electric arc furnace technology, recycled steel content and renewable energy sources.


Alongside material choices, Ecovent


Midi incorporates a more compact construction to reduce overall material mass and associated carbon impacts linked to manufacture, transport and installation. The design is a way to lower resource use while maintaining functional performance.


The unit includes a counterflow plate


heat exchanger with reported thermal efficiency of up to 90%. It also uses EC fans, low specific fan power and BlueSense controls to support demand- led ventilation and reduced operational energy use. The system should remain compliant with relevant UK standards including Building Regulations, BB101 and BB93. ▄ www.ves.co.uk


EIBI | MAY 2026


Targeting large indoor environments, DAIKIN APPLIED �UK� has launched the Vertical DX series, a floor-standing air handling unit. It is designed as a plug-and- play system to provide ventilation and temperature control in applications where installation constraints and variable occupancy patterns are a factor. The Vertical DX unit is engineered for integration with Daikin VRV and ERA systems and operates as a decentralised ventilation solution, delivering air treatment closer to occupied zones rather than through fully centralised systems. It is intended for use in environments such as logistics facilities, sports


halls and multi-use venues, where air distribution and load conditions can vary significantly. The system uses a


factory-installed direct expansion (DX) configuration, allowing refrigerant to circulate directly within the unit and removing the need for a separate water circuit. It is designed to reduce installation complexity and system footprint, particularly in retrofit applications where ductwork may be limited or impractical. The Vertical DX series


supports multiple discharge and connection configurations to suit different building layouts and can be integrated with Daikin control systems and building management


systems. It uses low-GWP refrigerant options such as R-32 and is designed for use in both new-build and refurbishment projects where efficiency and operational continuity are considerations. ▄ www.daikinapplied.uk


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