 Air handling unit accessories
Attenuation
Sound absorbent elements are arranged within the unit casing to provide a series of vertical splitters with central and side airways and dimensions to suit the acoustic requirements. The splitter frames are manufactured from 20g galvanised steel and contain a faced fibrous infill that is non-shredding, non-combustible (Class 1 rating), non-hygroscopic and chemically inert. While the standard facing is a tear-resistant material, perforated and melanex facings can also be supplied.
Humidification
Jet spray humidification is available with water atomisation by compressed air providing air humidification and adiabatic cooling. The system utilises mains softened or de-mineralised water with a nozzle purge facility and also has the option for ultra-violet sterilisation. Controls incorporate statue indication, controlled cleaning and purge timing with a BMS interface. A rotary air compressor with after-coolers, receivers and filtration can be interfaced with the system controls.
Steam humidification
The system delivers sterile humidification without wetting or corrosion. Injection tubes with a steam jacket and condensate separator ensure efficient steam humidifier operation and maintenance. Steam valves are fitted with a stainless steel parabolic plug for low capacity modulation, while automatic system control is achieved via pre-wired valve actuators. Gas-fired and electric steam generators can be provided with the interface controls or direct steam humidification can be obtained from an external source.
Evaporative humidification
Fast moisture evaporation with no requirement for chemical water treatment is achieved via a modular matrix within the evaporative humidifier. The matrix is a flame-resistant composite housed in a stainless steel frame, with a pumped water distribution system linked to the evaporative surface to ensure water level control and drainage. An ultra-violet sterilisation unit and auto drain flush the reservoir daily. |
