Air Handling Units (AHUs) are one of the most effective ways of ensuring good quality air in all types of buildings. AHUs are used to re-condition, regulate and circulate air as part of the HVAC (Heating Ventilation and Air Conditioning) System. The basic function of the AHU is to take in outside air, re-condition it and supply it as fresh air to a building.
Good quality air is imperative for all businesses, ensuring the health and safety of employees and visitors and helping to achieve optimum productivity.
An AHU is a large metal box connected to the HVACs ductwork, comprising of a fan, a mixer, filters, cooling and/or heating coils, humidifiers and are installed inside and outside of buildings. AHUs are often used in medium to large industrial and commercial buildings and are usually installed in the floors, roof or basement. It is common to have lots of smaller AHUs working in different areas of the building.
Generally, there are two types of AHUs, the ‘Draw-Through’ or ‘Blow-Through’. In the Draw-Through AHU, the fan pulls the air through the mixing box, filters and cooling coil before releasing it from the fan outlet to the space to be conditioned of to the ducting network. In the Blow-Through AHU, the fan blows the air through the mixing box, filters and cooling coil before discharging them to the space being conditioned of the ducting system.
Should you require further information or clarification on AHUs install and commissioning, reconfiguration or upgrade of components to improve operating and energy efficiencies, please get in touch with our team today.