passivent range brochure · 2017. 5. 22. · controllable insulated dampers other products 6...

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SUSTAINABLE SOLUTIONSFOR COMMERCIAL VENTILATION AND DAYLIGHTING

CI/SfB (57)Uniclass L7535October 2010

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Contents

Sustainable Ventilation and Daylighting Solutions 2

Environmental commitment

Natural Ventilation 4

Mixed Mode Strategy

Aircool Façade Ventilators

Airstract Roof Terminals

Airscoop Displacement Terminals

Controllable Insulated Dampers

Other products 6

External Weather Louvres

Internal Cover Grilles

Solar Shading

Intelligent Controls 7

Window Actuators

Natural Daylighting 8

Sunscoop Tubular Rooflights

Sunscoop Hybrid Rooflight

Sunscoop Square Ducted Rooflight

Metrodome Modular Rooflight

Combined Daylighting and Ventilation 10

Sunstract Rooflight/Ventilator

Litevent Airstract Rooflight/Ventilator

Case Study 11

Environmental commitmentAt Passivent, we are fully committed tominimising our impact on the environmentwhilst at the same time maintaining ourhigh standards of product quality.

We have implemented a number of goodpractice initiatives in order to demonstrateour commitment to sustainability including:

ISO 14001Passivent holds accreditation to ISO 14001,the European standard that addresses theeffectiveness of a company’s EnvironmentalManagement System.

Reducing carbon emissions and usingnatural resourcesOur Pinxton and Merthyr factories use‘green’ electricity from renewable energysources such as wind farms rather thanpower stations which release millions oftonnes of carbon dioxide. Energy efficientlightbulbs are fitted in the offices butnatural daylight is used where possible.Tubular rooflights (Sunscoops) are fittedwithin internal corridors where there is nonatural daylight and cost savings againstartificial lighting are being monitored.

PalletsPallets returned in good condition are re-used. Poor condition, unusable pallets aresent back to the suppliers and 100% recycled.

Factory recyclingThe majority of waste plastics (polypropylene,PVC and ABS), aluminium, lead andpackaging are sent away and 100% recycled.

Constituent materialsMaterials used in production have recycledcontent ranging between 75% and 90% forABS. 80% of packaging used by the companyis recycled material. Timber is purchasedfrom firms accredited to sustainable sourcessuch as FSC (Forest Stewardship Council)and PEFC (Programme for the Endorsementof Forest Certification). 90% of finishedplastic products are sprayed with water-based paints which have a low impact on theenvironment.

Passivent design their products to ensurethey have a significant impact on thesustainable design of a building.

SUSTAINABLE SOLUTIONS FOR COMMERCIAL VENTILATION AND DAYLIGHTING

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What Passivent offer

● Free appraisal and quotation

● Design consultation at client’s office

● Research and development

● UK product design, manufacture and supply

● Bespoke solutions

● Comprehensive thermal modelling service

● Project management

● Performance and offsite monitoring

● Maintenance contracts

● Controls, supply, supervisory visit and commissioning

● Mastercare installations

● Ventilation and controller specification

● After sales assistance

● Extensive warranties

‘sustainable’....capable of beingmaintained with minimal long-term effecton theenvironment.

Aircool Façade Ventilators

Sunscoop Tubular Rooflights

Framed Weather Louvres

Airstract Roof Ventilators

Window Actuators

Airscoop Displacement Ventilators

Mixed Mode Strategy

Controller


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Window Aircool

AIRCOOL FAÇADE VENTILATORS

The Aircool provides controlled ventilationthrough external walls and glazing systems.The electrically actuated ventilators providecontrolled air intake and extract in natural(passive) ventilation systems, and may alsobe used for air intake or extract inmechanical ventilation systems. Controlledindividually, or linked to an overall buildingenergy management system, they areparticularly suitable for night coolingthrough automatic control. They provideexcellent thermal insulation and air-tightness performance in the closed position.

Thermal Aircool ventilatorThe Passivent Thermal Aircool has beenspecifically designed to supply buildings withwarm, fresh air during cooler weather. It alsoprovides a fresh air inlet in warmerconditions. The Thermal Aircool systemincludes a low resistance airflow heater coil,which has been specially designed fornatural ventilation systems, resulting inhigh ventilation rates. A temperature sensorin the unit precisely controls the heater coilheat output. Combined with the Passiventrange of natural ventilation controllers, thisensures the correct level of ventilation issupplied at the required temperature.

Passivent have been instrumental in thedesign of products for commercial buildingsthrough the NatVent group. Today theproduct range includes roof terminals,façade ventilators and window actuators.These product groups have undergoneextensive research to make them ideal foruse in the UK and other European countrieswith a moderate climate. Naturallyventilated buildings typically consume lessthan half the energy used in air-conditionedbuildings. It is for this reason that naturalventilation contributes towards BREEAMand CRC credits and is a suitable strategy formost buildings.

The key to successful implementation of anatural ventilation strategy is to consider itsapplication during the preliminary stages inthe design of a building. Decisions aboutbuilding plan, orientation and other factorswill enable the most effective use to be madeof natural ventilation.

Clients, developers and building designersshould therefore consult natural ventilationexperts such as Passivent as early as possiblein the design process.

MIXED MODE STRATEGY

In buildings such as offices with a high heatload from IT equipment, some additionalcooling may be required. Passivent havedeveloped mixed-mode cooling systemscombining natural ventilation with carefullycontrolled local cooling for the best of bothworlds.

This approach is economical in operationsince cooling is usually needed only atperiods of peak demand and in areas ofspecific need. Passivent studies have shownthat a well-designed mixed-mode system canout-perform a conventional air-conditionedbuilding, with substantially less energy use.

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AIRSCOOP DISPLACEMENT TERMINALS

The Airscoop is a roof-mounted louvredterminal which provides displacementventilation using wind power. Separatedducts channel cooler, denser air down intothe building regardless of wind direction.Warmer, lighter air is displaced upwards andout on the leeward side of the terminals. The Airscoop can be used for night cooling.Particularly designed for spaces with higherceilings and large open buildings such asretail stores, halls, auditoriums andindustrial buildings.

AIRSTRACT ROOF TERMINALS

The Airstract is a roof-mounted louvredterminal that combines low airflowresistance with high airflow capacity andweather resistance, through a patenteddouble bank louvre design. Modern,traditional and circular terminal designs are available in a range of standard sizes.Bespoke terminals can also be designedwithout affecting the performance orweatherability. Used with Aircool façadeventilators for passive stack applications,deep plan ventilation and night cooling.

Aluminium Airstract terminalsAluminium Airstract ventilators are roof-mounted terminals which provide anexhaust for warm air. They combine highairflow capacity with patented low airflowresistance double bank weather louvres.

Airstract ventilator

CONTROLLABLE INSULATED DAMPERS

Controllable insulated dampers positioned inthe rooms give the users controllability withindividual room air volume control, andprovide thermal insulation duringunoccupied periods.

Controllable insulated louvre

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Airscoop ventilator


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EXTERNAL WEATHER LOUVRES

Passivent external weather louvres provide awell designed and robust cost effectivesolution for extract and intake air. The 45degree blades are set at a 30mm pitch forexcellent weatherability and low airflowresistance.

Weather louvres are available for internal orexternal use as framed units with either asurrounding flange for wall mounted fixingor recessed enabling multiple panelassemblies.

Z blade

S blade

SOLAR SHADING

Passivent Solar Shading systems provideexternal shading for control of solar heatgain through glazing. Designed as acomplete system which can be installed invarious configurations.

Suitable for offices, schools and othercommercial and public buildings, both newand refurbished.

A system of continuous fixed blades,normally installed on support armsprojecting horizontally above areas ofglazing. All main components arealuminium for long life with good corrosionresistance.

Available in two types of blade: Z blade and S blade.

INTERNAL COVER GRILLES

Passivent internal cover grilles provide awell-designed and robust cost-effectivesolution for extract and intake air. They areavailable in a range of designs, colours andsizes for internal use as framed units in wallor ceiling mounted fixings.

Recessed weather louvre

Framed weather louvre

Internal cover grille

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Passivent offer a complete range ofintelligent control systems speciallydeveloped to meet the requirements ofnatural ventilation, mixed mode and heatingsystems. Complete packages can be tailoredas stand-alone systems or integrated as partof the building energy management system.

Systems range from simple control for localventilation based on room temperature ormanual control to comprehensiveprogrammable systems for separate controlof multiple zones, monitoring internal andexternal temperatures, wind speed, carbondioxide levels, air quality, humidity andother factors. Additional features includeweb-browsing for off-site monitoring andmaintenance, data logging and BACnet-enabled room sensors reducing site wiringand cost.

eC100 analogue range: Manual positioningcontroller suitable for simple applications.

eC300 analogue range: Modulating roomcontroller which automatically adjusts basedon temperature for simple applications.

iC5000 digital range: Designed for smallerapplications requiring intelligent control.Each model contains pre-installed softwaretailored to its application.

iC7000 digital range: For larger and morecomplex applications, where bespokeprogramming and additionalcommunication features may be required.Standard software is provided with thecapability to be adapted to suit the specificapplication.

WINDOW ACTUATORS

The Passivent Chain Actuator range consistsof low-noise, slimline products that can befitted to any type of hinged vent.

This easy drive actuator has an anti-trapfeature which is available when used forlower level installation.

The Passivent iWAC window actuatorcontroller has been specifically developed forwindow automation applications, and iscombined with Passivent’s comprehensivecontroller range.

Combined room controller

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SustainabilityThe sun is a sustainable light source, andnatural daylight can make a significantcontribution to sustainable building design.Rooflights are an effective and efficientmeans of maximising natural daylight indark areas, often virtually eliminating theneed for supplementary electric lightingduring the day. Passivent natural daylightsystems are used to complement artificiallighting and can considerably reduce theannual energy consumption of any building,thereby reducing CO2 emissions.

Proven benefits of natural lightScientific studies have shown the positivebenefits of natural daylight for health andwellbeing in a range of applications. TheCIBSE Office Lighting Guide states thatNatural Daylight is an almost universalworker requirement. When given a choice,most people prefer a working environmentwith daylight to one without. It referencesdocumented evidence confirming thatexcluding daylight leads to increasednumbers of complaints about the workingenvironment, and may adversely affectproductivity. The Daylight WorkplaceRegulations state that “The lighting in everyworkplace shall, as far as is reasonablypractical, be by natural light.”

BRE Environmental Assessment MethodThe benefits of natural daylighting arerecognised by the Building ResearchEstablishment (BRE) EnvironmentalAssessment Method (BREEAM). BREEAMModules cover: offices, healthcare, retail,industrial buildings and schools. Passiventnatural daylight systems can contribute tothe credits available under the Health andWellbeing Section HW01 and the EnergySection E01.

SUNSCOOP TUBULAR ROOFLIGHT

The Sunscoop Tubular rooflight is used tobring natural daylight into internal roomsand spaces that have no, or insufficient,natural daylighting from windows. Natural daylight enters through a roof-mounted dome or skylight and is reflecteddown a mirrored tube and into the roombelow through a ceiling-mounted diffuser.Particularly useful for rooms and spacesbelow another room or a pitched roof.

Roof-mounted clearpolycarbonate glazingcombines maximum lighttransmission with safety andfire performance

Offset elbowsadjustable up to30° for flexibilityin installation

Highly reflective tube guidesdaylight down to the ceilingdiffuser. Can be run through aroof space or other void. Glidevale tube insulation tomeet building regulationswhere the tube passes througha cold space (not shown)

Light and sun deflector (LSD) maximises capture of low andhigh-incidence sunlight (optional)

Purpose designedroof interfaceflashing

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SUNSCOOP HYBRID ROOFLIGHT

The Sunscoop hybrid is a 350mm unit with adaylight controlled dimmable low energycompact fluorescent luminaire integratedinto the ceiling diffuser assembly to providea more consistent light level despitechanging external daylight conditions. The CIBSE Lighting Guide 10 – Daylightingstates that: “Case studies have shown that ina conventionally daylit commercial buildingthe choice of control can make 30-40%difference to the resulting light use”. The Sunscoop hybrid has a control unitwhich controls both occupancy and daylightlevels, maximising the energy savings fromlighting.

METRODOME MODULAR ROOFLIGHT

The Metrodome is an all-aluminiumrooflight range offering ventilation optionsand thermal efficiency, with a choice ofdouble or triple polycarbonate glazing.Suitable for new-build or refurbishment, onboth warm and cold deck flat or low-pitchedroofs. Non-standard sizes can be made tosuit existing roof openings and kerbs. Accesshatches are also available.

SUNSCOOP SQUARE DUCTEDROOFLIGHT

The Sunscoop square ducted shares many ofthe features of the tubular systems andincorporates additional features toaccommodate the system’s larger size. Itprovides high levels of natural daylight overlonger lengths, meaning the product cancontribute to the reduction of energydemand in commercial buildings. Thesquare design increases delivery of naturaldaylight through its larger cross sectionalarea compared to circular. The square designalso creates a stronger reflective tube forlarger sizes and eases the roof installationinterface on site.

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SUNSTRACT ROOFLIGHT/VENTILATOR

The Sunstract combines natural controllableventilation and natural daylighting functionsin one unit. Suitable for high ventilationcapacities and for providing light to lowerfloors using highly reflective light ducts.

Combined daylighting and ventilationproducts offer controllable ventilation witha high lumen output.

They are ideal for use where there islimited space, roof penetrations and time.These products are suitable for top floor ormulti-storey buildings.

Combined daylighting and ventilationsolutions contribute towards BREEAM,Building Regulations and CRC credits.

LITEVENT AIRSTRACTROOFLIGHT/VENTILATOR

The Litevent combines natural controllableventilation and natural daylighting functionsin one unit. For installation on flat or low-pitched roofs, the optional upstand willaccommodate both warm and cold deckconstructions without the need for anadditional timber kerb.


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PASSIVENT SOLUTION CONTRIBUTESTO EXCELLENT RATING

The Ministry of Defence (MOD) provides akey link between front line troops andfamilies in the UK through its ServicePersonnel & Veterans Agency (SPVA). SPVAbased at Imjin Barracks formerly known asRAF Innsworth had been scattered acrossseveral buildings on the site until the MODcommissioned Debut Services to refurbishan existing two storey building. This allowedSPVA to house their Imjin based functionslike the joint Casualty & CompassionateCentre (JCCC), Medal Office and CorporateServices in one, multi-discipline building.The brief was to minimise the environmentalimpact whilst improving team surroundings.

A key criterion of the design brief was to makethe 1960s, 3800m² office building assustainable as possible, achieving a ratingunder DREAM (Defence RelatedEnvironmental Assessment Methodology,equivalent to the ‘mainstream’ BREEAM tool).

Passivent’s solution to the brief included winddriven RAD Airscoop Ventilators, AirstractOutlet Terminals and Aircool FaçadeVentilators, all managed by the company’sinnovative iC7000 controller. Strategicallypositioned Sunscoop tubular rooflights werecentral eco-elements in the project,complemented by rainwater harvesting andimproved insulation. These solutionscombined achieved a DREAM ‘excellent’rating through design and construction.

Chris Kenny, project architect at StrideTreglown who designed the upgrade of

the building for construction by DebutServices, elaborates,

“The original building was 80% mechanicallyventilated. We needed to replace the façade, sodecided to explore the use of naturalventilation through openable windows andPassivent natural ventilation to ensure goodair quality throughout the deep plan: thisoption was actually cheaper thanmaintaining the façade and replacingall the M&E plant associated withmechanical ventilation!We were also concerned aboutproviding adequate daylight,especially in the deep plancirculation areas: Passivent’sSunscoops optimised natural lightacross the floor space, therebyimproving the quality of thatspace, and reducing runningcosts.”

The Passivent solution includedsix RAD Airscoops for the singlestorey open plan officeenvironment offering the bestair distribution and office design flexibility.

The ground floor was ventilated using acombination of Window Aircools (forcontrolled background ventilation and securenight time cooling) and openable windows.Extraction was achieved through a mixedmode ventilation approach employingmechanical ventilation.

The iC7000 controller was selected because itlends itself to the larger office environment,monitoring internal and external conditionssuch as CO2 and air temperature.

Thirty eight 350mm diameter Sunscooptubular rooflights were used to maximisenatural daylight into all areas of the building,achieving good light levels without the needfor artificial lighting. Each Sunscoop wassupplied with a LSD (Light Sun Deflector)which can increase the light level by as muchas 20% at the ceiling diffuser.

Paul Nix, Debut Core Works Director,commented, “Collaborative working betweenall parties and our supply chain partners,including Passivent, has ensured that we havedelivered a high quality, sustainable facilityfor our customer.”

SUSTAINABLE SOLUTIONS FOR COMMERCIAL VENTILATION & DAYLIGHTING

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PASSIVENT LIMITEDNorth 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 theright to amend product specifications without notice.

A member of the Building Product Design Group

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Environmental responsibilityIn addition to their energy-efficiency, naturalventilation systems require less maintenanceand component replacement thanmechanical systems over the life of abuilding. Passivent manufacturing processesand raw materials emphasise sustainability.The primary production material is ABS,formulated entirely from recycled plasticwith all production waste also beingrecycled. Finishes are water-based with lowenvironmental impact. Timber componentsare sustainably sourced from well-managedforests.

Our manufacturing plant uses a registeredpackaging disposal company and is equippedwith water recycling facilities.

Quality assurancePassivent products are designed, developedand manufactured under a BS EN ISO 9001quality management system, giving anindependently audited assurance that theproducts will fulfil their intended purpose.

Early consultationClients, developers and building designersshould consult Passivent as early as possiblein the design process. Contact us at theaddress below.

The CompanyPassivent is a member of the BuildingProduct Design (BPD) Group, which hasbeen established for over 25 years.

Investor in peopleInnovation stems from the skills andexperience of our staff, who constitute themost valuable asset of the company. BPD has made a formal commitment to staff development and training through theInvestors in People national standard.

passivent range brochure · 2017. 5. 22. · controllable insulated dampers other products 6...

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