CI/SfB (57.7) Xy Uniclass L7563 ...... January 2015 AIRCOOL VENTILATORS

FURTHER INFORMATION ......

Services Other products Passivent has its own in-house research Passivent market a range of other natural team dedicated to developing techniques and ventilation and daylighting products products for natural ventilation, and has including: been a leading partner in some of the most SoundScoop acoustic transfer ventilation important research projects in this field products including NatVent™, a consortium of European organisations headed by BRE. Airstract and Airscoop roof ventilation terminals We offer a comprehensive design and advisory service tailored to your specific Acoustic passive ventilation project, covering both natural ventilation AIRCOOL VENTILATORS Ventilation control systems design and product selection. Advanced software based on CIBSE AM10 is used to Mixed mode cooling systems calculate sizes of air inlets and outlets to Combined rooflights/ventilators achieve optimum performance. Sunscoop tubular rooflight systems Names of approved installers can be provided on request. Metro modular rooflights Natural and assisted domestic ventilation systems Tricklevent window ventilators Solar shading

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PASSIVENT LIMITED North Frith Oasts, Ashes Lane, Hadlow, Kent TN11 9QU Tel: 01732 850770 Fax: 01732 850949 Email: [email protected] Web: www.passivent.com

Passivent Limited maintains a policy of continuous development and reserves the right to amend product specifications without notice.

A division of Building Product Design Ltd. Company Registration No: 3944123

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Internal cover grille

AIRCOOL VENTILATORS ......

Passivent Aircool is a range of controllable DESCRIPTION insulated ventilators primarily for BENEFITS Composition, manufacture installation in external f açade s in Frame and external weather commercial and similar buildings. ● Primary construction materials are aluminium and ABS, which are 100% louvres are extruded aluminium, with ABS thermal break. The electrically-actuated dampers provide recyclable. controlled air intake and extract in natural ● Electrically-actuated low-voltage Internal motorised dampers are Contents ventilation systems, and may also be used dampers provide optimum safety and fabricated from a double skin of Aircool ventilators 2, 3, 4, 5 for air intake or extract in mechanical flexibility, with virtually silent aluminium with ABS thermal ventilation systems. They are particularly modulating operation. break and blade compression Hybrid Plus Aircool 6, 7 suitable for night cooling strategies, where ● Designed to be installed in masonry seals; supplied as a complete Thermal Aircool 8 daytime heat build-up is dissipated from the walls, curtain walling, window frames assembly including the actuator. External weather louvre structure during the night, producing lower Removable aluminium actuator Acoustic Aircool 9 or profiled sheet cladding. internal air temperatures with a reduced cover for ease of maintenance. ● Insulated internal dampers provide a Other applications 10, 11 need for daytime cooling or air conditioning. Insect screen is 4mm black Controllable U-value of 1.1W/m2K when closed, motorised damper Natural ventilation methods can save energy, polypropylene. Internal cover Further information 12 to minimise heat loss. reduce greenhouse gas emissions, and grille is fabricated from extruded Excellent air-tightness performance reduce or eliminate the capital and running ● aluminium. when closed. costs of ventilation or air conditioning plant. Sizes Aircool window ventilator for window/curtain walling v iewed from outside ● Excellent weather protection and Made to order in the size ranges security are provided by the external shown below. weather louvre, even when the

internal insulated louvre is open. Aircool wall ventilators: Wall sleeve supplied to ● Thermally broken frame, and Heights 255 up to 1490mm; link internal and lengths 400 up to 2300mm. external elements for insulated and orientated dampers maximum airtightness minimise the risk of nuisance Designed to suit brick module External weather louvre and security condensation and draughts. sizes. Wall thickness from 195mm ● Thermal, acoustic and air mixing upwards; specify when ordering. variants are available to attenuate or treat the incoming air in various ways Aircool window/curtain wall as required by the user (see pages 6, ventilators: 8 and 9). Heights 270 up to 1505mm; ● Discreet and functional yet lengths 400 up to 2300mm; aesthetically pleasing, with internal to suit glazing thickness protection cover grilles supplied as from 24mm. Quality assurance standard. Depth front to back (including cover grille) The systems and processes by which the ● The internal cover grille protects 183mm plus glazing product are manufactured have been against impact damage, for thickness. appraised under BS EN ISO 9001 which applications such as gymnasiums or covers design, development, manufacture, sports halls. Please enquire for specific and installation (if by approved installers), ● Ventilation design service available. size availability. giving an independently audited and Can be supplied in modular form to maintained assurance that the products will ● Appearance provide greater flexibility in use meet their intended purpose. External louvres and frame are (see page 10). polyester powder coated to order. Sustainability assurance Internal cover grilles are supplied All Passivent manufacturing is accredited to Controllable in white RAL 9016 as standard but Internal cover grille ISO 14001, the international standard for can be polyester powder coated to motorised damper environmental management systems. other colours to specific order. Passivent are committed to minimising our Internal motorised dampers are impact on the environment using recycled mill finish aluminium. and recyclable materials where possible. Aircool wall ventilator for masonry wall viewed from inside

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PERFORMANCE ......

Ventilator performance Complete Aircool units in masonry Passivent can advise on the number and walls and windows/curtain walling size of ventilators needed according to air flow volume required (see Services, Aircool wall ventilator in masonry wall back cover). Fire performance Materials used for internal frame and dampers when closed achieve a Class 1 rating when tested to BS 476: Part 7. Weather performance The external louvres provide 98.6% rain rejection when independently tested at BSRIA to BS EN 13030. When tested to

BS EN 1027 the closed ventilators are Insect screen watertight at over 1000Pa pressure. Fixed external Air leakage performance weather louvres When tested the air leakage rate of the Controllable motorised Specification clause closed ventilators is 0.57 m 3/hour/m at insulated internal dampers Standard Aircool 50Pa pressure. The linear metre length (shown closed) Aircool louvre ventilators for masonry walls/ is defined as the perimeter of the unit Internal protective windows/curtain walls* plus the total length of the louvre-to- cover grille having extruded louvre contact. This equates to an aluminium frame with Wall sleeve supplied to ABS thermal break, approximate value in terms of face area link internal and external extruded aluminium of 9.0m 3/hour/m 2 at 50Pa pressure elements for maximum airtightness and security external weather louvres, (depending on unit size). 4mm insect screen, and aluminium internal cover Thermal insulation performance grille. Insulated internal motorised controllable Average calculated U-value of the dampers fabricated from ventilators is 1.1W/m 2K in wall Aircool window ventilator in curtain walling double skin of aluminium applications. with ABS thermal break and blade compression Controls and sensors seals. U-value 1.1W/m²K when closed. 24V actuator Ventilation airflow is continuously Thermal break for internal louvres variable by means of 24V modulating controlled by eC/ic8000* actuators. Ventilators can be controlled wall-mounted switch-gear. Ventilators designed and by Passivent’s range of thermostatic manufactured under controls or programmable controllers, BS EN ISO 9001, and or linked to a building energy supplied by Passivent Limited, North management system. Passivent also offer Fixed external Frith Oasts, Ashes Lane, a range of control sensors for weather louvres Hadlow, Kent TN11 9QU temperature, CO and wind for exposed Insect screen Tel: 01732 850770, 2 Fax: 01732 850949, locations. Controllable motorised Email: insulated internal dampers [email protected] Modular applications (shown open) (and installed by an Aircool ventilators can also be supplied Internal protective approved installer). in modular form, see page 10. cover grille *Delete as applicable.

Glazing

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HYBRID PLUS AIRCOOL ......

The Hybrid Plus Aircool combines the features of the Aircool ventilator with an innovative air tempering and mixing unit utilising a single energy efficient low power In winter, colder spring and autumn periods Internal appearance sweep fan (when required). Specification clause the Hybrid Plus Aircool tempers the Internal case construction is finished in Hybrid Plus Aircool, It can be used in a range of different incoming air with warmer internal air before white RAL 9016. incorporating Aircool ventilator with a mixing strategies including Passive stack and single it enters the space thereby minimising the Dimensions chamber. Aircool for sided ventilation. risk of cold draughts for the occupants. masonry Internal tempering and mixing unit: walls/windows/curtain The Hybrid Aircool Plus is one of the 1000mm(w) x 400mm(h) x 1000mm(d) into walls* having extruded slimmest in its class due to the unique the space. aluminium frame with ABS thermal break, internal design, only using a single 50w Weight approximately 55kg. extruded aluminium energy efficient fan and can either be Aircool size would be supplied to suit the external weather louvres, mounted within a dedicated bulkhead, building requirements, typically 962mm(w) 4mm black polypropylene insect screen. Hybrid Plus Aircool within a suspended ceiling or exposed in the x 660mm(h). Insulated motorised space due to its white finished appearance The interface duct between the two units is controllable dampers and diffuser grille. The Aircool part of the to be supplied and built on site or special fabricated from double skin of aluminium with unit can be integrated into most window and order from Passivent due to its dedicated ABS thermal break and wall applications enabling a flexibility of use. nature. blade compression seals. Mixing chamber finished Effective and intelligent control of the Installation to RAL 9016 white, Hybrid Plus Aircool is critical to maximising Positioned within the space, either on incorporating low power fan, controllable mixing it’s performance and can be effectively display or within a suspended ceiling or dampers and RAL 9016 operated using the Passivent iC8000 bulkhead. aluminium internal cover Standard Aircool controller which can be integrated through grille. Performance Mixing chamber is a building management system. Internal Free area of each unit: 0.238m 2. connected to the façade combined CO and temperature sensors mounted Aircool unit via 2 Maximum flow rate when inlet and along with an external temperature sensor bespoke ducting (to be outlet resistances are equal and fan is separately supplied). Tempered air are used with pre-defined set points for in operation: 170 l/sec. Passivent can supply this different operating modes. ducting upon request, once the Aircool dimensions within the façade and the depth back Damper doors into the room are defined. Ventilator U-value 1.1W/m²K when closed. 24V modulating actuator Low energy sweep fan control for dampers, It provides low airflow resistance that controlled by iC8000 intelligent controller. enables the combined unit to also be Fan flow rate of up to operated in passive mode without the fan 170 l/s. running when not required. Ventilators designed and manufactured under In peak summer conditions, the energy BS EN ISO 9001, and supplied by efficient low power fan can be activated to Passivent Limited, North promote air movement keeping the Standard Aircool Frith Oasts, Ashes Lane, ventilation strategy operating and Hadlow, Kent TN11 9QU Tel: 01732 850770, temperatures under control. Fax: 01732 850949, Email: Hybrid Plus Unit In unusual building occupancy events such [email protected] as the generation of excessive CO 2 levels or (and installed by an excessive heat gains such as occasional high approved installer). *Delete as applicable. density occupation, the fan can also be activated to purge the space more rapidly Adaptor duct (special than a passive ventilation system will allow. Sectional drawing of the unit within a wall strategy order from Passivent)

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THERMAL AIRCOOL ACOUSTIC AIRCOOL ......

The Passivent Thermal Aircool has been Specification clause The Acoustic Aircool range is available in specifically designed to supply buildings with Acoustic Aircool wall and window versions. The range has Aircool acoustic wall ventilator ventilators for masonry 797 x 315 x 390mm, with external warm, fresh air during cooler weather walls/windows/curtain been developed to meet increased weather louvre and single internal particularly when the Hybrid Plus Aircool is walls* having extruded regulation requirements for sound acoustic chevrons, providing a not suitable due to inadequate availability of aluminium frame with reduction, and the increased noise weighted normalised sound level ABS thermal break, difference Dn,e,w of 22dB “free heat” from the room itself or a extruded aluminium exposure resulting from the greater use of (when open). requirement for higher airflows than can be external weather louvres, brownfield sites. Controllable motorised provided when in passive mode. 4mm insect screen, and Internal cover grille aluminium internal cover Independent test data to BS EN 20140-10 dampers (shown open) The Thermal Aircool will also provide a grille. Units to have is available on request, with detailed Airflow heater coil single/double* acoustic fresh air inlet in warmer conditions, when chevrons to achieve a performance figures for each application. air warming is not required thus provide Controllable motorised weighted normalised Depending on requirements, acoustic fresh air ventilation throughout the year and dampers sound level difference of Specification clause 22/26* Dn,e,w across the ventilators may have a single or double a secure night cooling strategy in warmer Thermal Aircool louvre ventilator to BS EN row of internal acoustic chevrons, acoustic ventilators for masonry weather. 20140-10. Insulated walls/windows/curtain internal motorised liners. For special high noise reduction walls* having extruded The Thermal Aircool system incorporates a controllable dampers requirements, Passivent can design and aluminium frame with low resistance airflow heater coil, which has fabricated from double manufacture bespoke ventilators to ABS thermal break, skin of aluminium with extruded aluminium been specially designed for natural ABS thermal break and maximise sound reduction and minimise external weather louvres, ventilation systems and is connected into the blade compression seals. airflow resistance so as to achieve target 4mm insect screen, and main central heating system of the building. U-value 1.1W/m²K when air change rates. aluminium internal cover closed. 24V actuator for An integral temperature sensor precisely grille. Insulated internal internal louvres Passivent Aircool acoustic façade motorised controllable controls the heater coil. Combined with the controlled by iC8000. ventilators can be complemented by dampers fabricated from Passivent range of natural ventilation Ventilators designed and double skin of aluminium manufactured under Passivent Soundscoop and Soundscoop iAT controllers, this ensures the correct level of with ABS thermal break BS EN ISO 9001, and (intelligent airflow technology) acoustic and blade compression ventilation is supplied at the required supplied by ventilators for internal air transfer. seals. U-value 1.1W/m²K temperature. Passivent Limited, North when closed. 24V actuator Frith Oasts, Ashes Lane, This broader product range provides for internal louvres The Thermal Aircool also incorporates all Hadlow, Kent TN11 9QU designers with the opportunity to adopt controlled by iC8000. Tel: 01732 850770, the features and benefits of the standard Fax: 01732 850949, complete natural ventilation solutions Ventilators designed and Wall sleeve supplied to manufactured under Aircool (see page 4). Email: where buildings have high external noise link internal and Aircool acoustic BS EN ISO 9001, and [email protected] external elements for levels. wall ventilator supplied by Sizes (and installed by an maximum airtightness 797 x 315 x Passivent Limited, North approved installer). Enquire for available sizes and security 570mm, with Frith Oasts, Ashes Lane, *Delete as applicable external weather Hadlow, Kent TN11 9QU and minimum depth louvre and double Tel: 01732 850770, requirements. internal acoustic Fax: 01732 850949, chevrons, Email: providing a [email protected] weighted (and installed by an normalised sound approved installer). level difference *Delete as applicable Dn,e,w of 26dB (when open).

Controllable motorised dampers (shown closed) Airflow heater coil

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OTHER APPLICATIONS ......

Aircool external Modular applications Passive stack ventilation weather louvres with Aircool ventilators and the various elements This design using passive stack ventilation secondary weather that make the total unit can also be supplied was successfully adopted in a multi-storey baffles in modular form, with the external weather building to meet fire regulations and reduce louvres (also with the patented double bank risk of ‘cross talk’ (ie sound leakage weather louvre system), internal insulated between floors). dampers and internal cover grilles as Natural ventilation was achieved by passive separate components, providing extra induced cross ventilation before entering the flexibility in ventilation design. stack. Fresh air was introduced at the windows and drawn across rooms, then through Aircool dampers, and extracted at high level through Aircool window Motorised internal ventilators located at the top of the light damper with well/stack. fireproof sleeve and fire damper External weather louvre

Passive ventilation stack Sidcot School, showing external weather louvres separated from internal controllable louvres and cover grille.

Motorised internal Controllable insulated damper with louvre fireproof sleeve and Aircool insulated dampers were used in fire damper and combination with fire dampers to maintain acoustic chevrons the integrity of fire protection between floors. Acoustic chevrons were fitted behind the Aircool dampers to the louvres to provide acoustic attenuation between floors. Aircool

Internal cover grille dampers positioned in the rooms gave the users controllability with individual room air volume control, and provided thermal insulation during unoccupied periods. In exposed locations Passivent patented secondary weather baffles were fitted behind the external weather louvres to provide a Class A weather rejection performance. Aircool extracts can be located in high level window frames, behind weather louvres, within a terminal arrangement or in purpose-designed parapet walls.

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