AHS Specialist Services design, build, install and maintain a wide range of low energy, highly efficient AHU systems, this allows us to deliver the best, tailored solution for you and your chosen application.
Ageing ventilation equipment can often be refurbished, which can extend the life of air handling units and other components by 15 years. Immediate repairs can be undertaken to get ventilation units up and running again. AHS Specialist Services can advise the most economical and beneficial solution whether to refurbish or replace, taking into account the condition of the existing equipment and complexity of replacement. It can be the case that partial replacement plus refurbishment is the recommended solution.
An initial AHS Specialist Services survey will address the following issues:
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Corrosion, often present at the AHU inlet, and at leaking heating or cooling coils. Corrosion can be treated or removed and the metalwork replaced and repainted as necessary.
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New roofs and access panels fitted as necessary.
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Filter frame replacement, plus new filters and pressure gauges.
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Fans and motors can be replaced like for like, although the preferred option would be to fit single inlet direct drive backward curved ‘plug’ fans with inverter or EC fan with built in electronic speed control, providing reduced maintenance with immediate energy saving with easy and accurate airflow commissioning.
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Larger double inlet backward curved fans can be fitted with new bearings to considerably extend their life.
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Replacement of AV mounts and flexible connections.
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Deep clean of units inside and out, with repair and repainting as necessary.
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Heating and cooling coil repair or replacement including pipework. Large coils can be assembled in situ. Aluminium fins on coils often disintegrate over time due to atmospheric pollution or saline atmosphere, there are replacement options to ensure long life. Overflowing cooling coil drain pans can be caused by traps of insufficient size or depth which can be investigated and remedied.
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Humidifiers replaced including low energy evaporative type.
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Access panels, door fasteners, door seal replacement.
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Thermal wheel replacement, installed in kit form if necessary.
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Damper repair or replacement, including fire and smoke, plus new actuators.
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Duct and pipework repair and insulation.
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Clean or replacement of external air intake louvres or cowls.
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Controls assessment to check functions and upgrade to minimise future energy consumption. Sensors replaced as necessary.
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Fan coil refurbishment including fans, coils and controls.
Due to component size and space constraints, it is often necessary to install items in flat pack format, or use specialist handling equipment for the installation.
