RETROFIT IN HVAC


Clear benefits of HVAC retrofit


Retrofitting existing HVAC systems is now a smart, future-proof strategy for sustainable building operations. Instead of disruptive and expensive full replacements, retrofitting focuses on strategic upgrades that boost performance, cut energy use, and extend system life—all while minimising downtime and capital expenditure


O


ne of the most effective retrofits is replacing traditional belt-driven fans


with Electronically Commutated (EC) plug fans. These fans remove inefficiencies like belt friction and offer variable speed control for precise airflow and major energy savings. When installed in Air Handling Units (AHUs), EC fans also improve system reliability, cut maintenance needs, and reduce operational costs. A standout project by HALO


HVAC saw multiple AHUs upgraded with EC plug fans, delivering a 70-ton annual CO2e reduction and payback in just 2.4 years—demonstrating clear environmental and financial returns. Retrofitting goes beyond fans. Coil and filtration upgrades further improve efficiency by boosting heat transfer and reducing pressure drops. High-


COMMERCIAL COMBI BOILER HOT WATER AND HEATING IN ONE UNIT


The HeatMaster Evo


BEFORE


AFTER


efficiency coils allow HVAC systems to maintain comfort using less energy, while modern filters enhance air quality and lower fan workloads, cutting overall consumption. Heat exchanger upgrades are another high-impact step, with today’s


advanced designs offering superior thermal transfer and reducing strain on support equipment—lowering both operating costs and maintenance demands. Retrofitting offers clear advantages over full system replacements: it’s more


affordable, less disruptive, and reduces downtime. It also shrinks the total carbon footprint by extending the life of existing equipment and avoiding the embodied emissions of manufacturing and installing new systems. Beyond efficiency gains, retrofitting brings HVAC systems up to modern sustainability and performance standards, enhancing asset value and making properties more attractive to tenants and investors. When combined with advanced Building Management Systems (BMS),


retrofitted systems enable real-time monitoring, predictive maintenance, and optimisation—unlocking further savings and peace of mind. HVAC retrofitting is a proven, low-carbon route to modernising building


systems while delivering both environmental and financial benefits. HALO HVAC can help identify the right solutions for your building. Contact us today to see how small upgrades can make a big impact.


HeatMaster Evo | 6 models | 25-120kW outputs • Perfect option for light commercial applications • Space saving installation


• Fast heat up and rapid recovery - ensures constant supply of hot water (473-1754 l/h @ 60O


• Can be installed in cascade to meet large commercial building requirements


• Quick and easy to install • Search ACV combi boiler for more information


Contact your local Business Development Manager for a quote uk.sales@acvuk.com acv.com/gb


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