KwikHEAT - Practical Facilities Management

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44h.v.a.c.Bespoke air curtainsat Aldwych HouseJS Air Curtains has recently designed,supplied and installed a pair ofbespoke air curtains at Aldwych Housein Aldwych London. The installationwas part of a refurbishment of theentrance by property specialists, KingSturge. JS Air Curtains worked withKing Sturge to design the units toincorporate motion detectors andlighting, whilst complimenting thestainless steel architecture at theentrance of this prestigious Londonoffice development.Two vertical stainless steel air curtains werepositioned on marble plinths at either side of the 4mwide entrance, producing an effective barrier acrossthe doorway whilst the automatic sliding doors areopen. Cold air is prevented from entering during thewinter and air conditioned air prevented fromescaping during the summer, helping to maintain aHoneywell partnerswith Salford CC forquality heatingSalford City Council has appointedHoneywell as sole controls partnerfor its Salford Heating InstallerPartnership (SHIP), a major initiativeto keep Salford’s most vulnerableresidents warm in their homes.To ensure high quality heating systems aresupplied quickly to vulnerable households, SHIPbrings together Honeywell specialists, othermanufacturers and heating installers with theCouncil’s Home Improvement Agency andAffordable Warmth Team.Honeywell will provide wired and wireless heatingprogrammers and thermostats, control valves,thermostatic radiator valves and automatic boilerbypass valves. Council surveyors will determinethe optimum controls to be used to provide highstandards of comfort and energy efficiency ineach installation, choosing from a shortlist of highquality, best value Honeywell products. Thischoice will depend on whether the home requiresa completely new installation or an upgrade to anexisting system.The Salford Home Improvement Agency andAffordable Warmth Team is now also workingclosely with the Council’s Landlord Accreditationteam towards more energy efficient andcomfortable heating systems in private rentedproperties.Reader Reply No: 111117pleasant internal environment.The bespoke air curtains are joined by an overheadstainless steel transom that incorporates fourrecessed down-lights and a motion detector thatactivates the automatic sliding door. All electricalcabling is housed inside this structure, which wasalso designed and manufactured by JS.JS Air Curtains bespoke design service providesclients with the opportunity to either make a featureof their air curtains or totally blend them into thesurrounding architecture. Also, by combining otherservices into the unit, the air curtain can offer morethan just protection from the elements. Services thatcan be incorporated include concealed securitycameras, smoke detectors, motion detectors,emergency and standard lighting.This not only provides space saving throughintegrated design but can allow clients to takeadvantage of the benefits of prefabrication, likereducing on-site programme times.Asuccessful blend of Clean AirGroup’s technical know-how andSeeley International Europe’s BreezairEvaporative Cooling has providedLondon Taxis International (LTI)manufacturers of the famous ‘black cab’with the solution to high temperaturesin the company’s workshop area inCoventry.LTI’s workshop is situated in a metal-framed buildingwith a corrugated iron roof. An 1170 square metrearea of the workshop is curtained off where weldingis carried out. The combination of the building’sdesign together with heat generated from thewelding equipment and no air movement pushedworkshop temperatures up to around 40 0 C insummer.Turning to Clean Air Systems to find an economicsolution, the company calculated that just twoBreezair coolers would be capable of providingsufficient cool, fresh air to overcome the problem.Installed on an outside wall with air ducted via a grillinto the welding area of the workshop, the BreezairNew energy recovery ventilators fromPanasonic efficiently provide aconstant flow of fresh air –economically cooled or heated byenergy recovered from exhaust air toproduce significant cost savings.Energy recovery, using an improved counter-flowheat exchanger, reduces the air conditioning load by20% compared to regular ventilation. Typically, theJS Air Curtains supplies an extensive range of aircurtains, as well as bespoke solutions, for allcommercial and industrial applications. JS in-houseproject management division also provides asmooth, hassle-free installation service that walksthe customer through from specification to postinstalledproduct training.Reader Reply No.: 111032Clean air installs Breezairto lower temperaturescoolers have provided a steady flow of cooled airthat has reduced temperatures and dispelled all thefumes.The Breezair system is housed in a simple, clean,ultra-modern designed tough polymer casingspecially developed to withstand all weatherconditions. The Breezair’s state-of-the-artcomponents include an innovative water distributionsystem, which delivers continuous, balanced watercoverage to all the pads. RR No: 111050Panasonic recovers energyfor fresh air and cost savingsenergy recovery ventilators complement Panasonicair conditioners to create a comfortable and healthyindoor environment in ‘sealed’ buildings.The new counter-flow heat exchanger has largercontact surfaces for fresh and exhaust airflows –making it 6% more efficient than the cross-flowelements in earlier energy recovery ventilators. Theimproved efficiency translates to a reduced verticalprofile of the heat exchange element – from 287mmto 230mm – which also makes the units quieter inoperation. Ruggedly constructed and with a plasticframe, the compact counter-flow element has largeair passages to resist clogging and reduce the needfor cleaning – the element and non-woven cloth filterare cleaned just once or twice a year to maintainoptimum efficiency.Reader Reply No: 111106
h.v.a.c.How maintenance canenhance office AC performanceMaintenance implies keepingyear based on little more than the opinion of the maintaining system function than with individualequipment in the same condition. facilities engineer, plus some hazy idea of what component function.But there is a way to improve theperformance of an office’s airconditioning system – and therefore itsenergy consumption – by using aparticular maintenance technique. BillMcLaughlin, managing director ofDelrac ACS explainsThe pressing need to tackle climate change isincreasing pressure on facilities managers to reduceenergy consumption in the offices they manage.One of the biggest drains on energy in officescomes from the building services, and particularly airconditioning systems. Around 30 per cent of theenergy for air conditioning consumed in the UK is inoffices, which makes energy conservation a priorityin office blocks.But this begs a fundamental question: Whatmeasures can you take to reduce the voraciousappetite of air conditioning systems for power? Oneway is through effective maintenance.There are, essentially, three types of maintenance:Corrective – carried out to restore a defective item toa working condition as quickly as possible.Preventive – to ensure the best possible operationof equipment and avoid costly unplanned equipmentfailure or shutdown.Predictive – examining the “vital signs” of the systemthrough testing, inspection and “conditionmonitoring”.All are designed to preserve existing operatingconditions. However, there is a maintenance regimethat can actually improve a system’s performance.Reliability-centred maintenance (RCM) focuses onthe function rather than the equipment – in otherwords, what the system does rather than what it is.In his book, “Reliability-centred Maintenance”, JohnMoubray lists seven questions you should ask aboutthe “asset” (in our case the air conditioning system):What are the functions and associated performancestandards of the asset in its present operatingcontext?In what ways does it fail to fulfil its functions?What causes each functional failure?What happens when each failure occurs?In what way does each failure matter?What can be done to predict or prevent each failure?What should be done if a suitable proactive taskcannot be found?The development of RCM has re-definedmaintenance. It emphasises that the objectiveshould be to prevent or mitigate the consequencesof failures rather than to prevent the failuresthemselves.The consequences of failure differ depending onwhere and how air conditioning is installed andoperated. A formal review of failure consequenceswill focus attention on maintenance tasks that havemost effect, and diverts energy away from those thathave little or no effect.BSRIA’s view is that facilities managers faced withpoorly performing m&e services have to askthemselves: is it worth maintaining? This, says theAssociation, usually happens around the time of theannual budget process.It adds: “Faced with a lack of information on the truemaintenance needs of building services, a financialdirector is forced to set aside a sum of money everynasty things might happen to the business if thelights went out.“As a result, maintenance is usually based onpreserving the physical assets using failureprevention and asset care. However, such a strategymust add value to the business process. What’sneeded is a reliable way of assessing themaintenance needs of the services against thebusiness risk of plant failing in service.”BSRIA has produced a risk assessment toolkitdesigned to do just that. The Business FocussedMaintenance Toolkit enables facilities managers tofocus their maintenance activities based on a logicalassessment of risk to the business, says BSRIA.It concludes: “The Toolkit also provides a costeffectiveway to assess, manage and maintainservices, and reduces the risks of system failure.The result: maintenance that will protect yourbusiness without wasting money. The toolkitcontains everything you need to prepare a completemaintenance programme based on the risk to yourbusiness.”Five principles of RCMRCM defines failure as “any unsatisfactorycondition”. It may be either a loss of function (inother words, the air conditioning stops working) or aloss of acceptable quality (for example, the airconditioning continues, but fails to improve airquality).RCM can be used to gather data from the resultsachieved and feed this back to improve futuremaintenance. In other words, it can improve systemsand procedures and not simply keep them the same.The US-based “Whole Building Design Guide”defines RCM’s primary principles as:Function oriented – RCM seeks to preserve systemor equipment function, not just operability foroperability’s sake.System focused – RCM is more concerned withReliability centred – RCM is not overly concernedwith simple failure rate; it seeks to know theprobability of failure at specific ages.Design limitations – RCM’s objective is to maintainthe reliability of the equipment design recognisingthat changes in inherent reliability are the provinceof design rather than of maintenance. Maintenancecan, at best, only achieve and maintain the level ofreliability for equipment that was provided for bydesign. However, RCM recognises that maintenancefeedback can improve on the original design.Safety, security, and economics – Safety andsecurity must be ensured at any cost; thereafter,cost-effectiveness becomes the criterion.The need for good housekeepingRCM does not preclude the need for goodhousekeeping practice. The Carbon Trust alsorecommends the following general advice for airconditioning systems:Ideally, set timers so that there is no cooling whenthe building is unoccupied.Time-control each unit in localised cooling systemsto avoid out-of-hours operation.Check temperature settings. Find out thetemperature at which your air conditioning switcheson and your heating system switches off. Thegreater the temperature gap the better. Check andcompare temperature settings for each unit inlocalised air conditioning systems. The Carbon Trustsays it is common to see one unit heating andanother cooling in the same space.clean ductwork, fans and grilles regularly, andensure furniture doesn’t obstruct air pathways – anyblockage can increase energy consumption andmaintenance costs.By taking these measures, you will be reducing thechance of an air conditioning system failure. But,equally importantly, you will be helping to cut carbondioxide emissions from your buildings.Reader Reply No: 11104745
Page 2 and 3: KwikHEAT Temporary heating solution
Page 4 and 5: contentsRegularsNews 6Health & Safe
Page 6 and 7: 6NEWSnewsNilfisk-Advance helps sode
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