SPONSORS PRODUCT REVIEW OF THE YEAR Vela Switch – colour changing LED Fire Rated Downlight


placed on the side of the product (not the back of the can). This product has an integrated driver and loopin and loopout terminals to assist in a quick and easy installation. Supplied with either a frosted or a clear lens  this range is available in three different bezel colours; white, polished chrome & satin chrome. GreenBrook has tested this range to ensure they are suitably fire rated for use in 30, 60 & 90 minute ceilings and that they conform to EN 60598 and to Building Regulations Part B, C, E & L. For further information about these products and our other Vela products


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customers all the benefits of the latest thinking on their safety. That’s where the new Timeguard


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Valiance+ range of RCDprotected switched sockets and spurs comes in. As usual, this trusted supplier has gone the extra mile and, as well as upgrading features to meet the new British Standard BS7288:2016, it has undertaken a complete redesign and upgraded to the latest generation of componentry throughout. So, both end user safety and longterm reliability are improved. The Valiance+ range of 1gang and 2


gang RCD switched sockets in both active and passive versions is fully compliant with the new BS 7288:2016: Specification for


please see our website or call for a brochure. www.greenbrook.co.uk


Is your RCD protection up to standard?


he latest British Standard for RCD protection has been in force for over 2 years and it really is time to give your


reenBrook are delighted to present their new LED Fire Rated Downlight, the Vela Switch – a colour changing downlight that can be switched from 3,000k to 4,000k. The switch to change the colour temperature is conveniently


Advertorial BSEE


Scottish whiskey distillery business in 1887. Today, this wellknown brand is still a family run business, who have earned an enviable reputation for the quality of the spirits they produce and distribute internationally. Always looking to see if there


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are any areas that will help them to improve their operation, they approached Grundfos Pumps to review the pump related energy efficiency at their plant. Having undertaken an initial energy check, Grundfos identified several areas where significant pump related savings were possible. Taking the advice offered, two


residual current devices. This latest standard replaces BS 7288:1990. The comprehensive range of RCD wiring


accessories covers all you’ll need including white plastic and rugged metal clad variants in both 1 gang and 2 gang and a choice of 3 styles of RCD switched fuse spurs.


www.timeguard.com


Tridonic and Casambi: Versatile solution for wireless light management


Partnership fosters innovative control technology


solution. Tridonic’s basicDIM Wireless system based on Casambi’s Bluetooth Low Energy (BLE) technology offers an interconnected and interoperable solution for the hasslefree wireless connectivity of luminaires. Wireless light management opens a


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myriad of new possibilities for all parties involved in installing a new lighting system. The luminaire manufacturer, the installer to the building operator and the end user, will all benefit from the flexibility and versatility that wireless technologies offer. Also,


ridonic and Casambi have teamed up to develop a new innovative wireless light management


existing lighting infrastructures can be easily updated and fitted with additional features.


Technology partnership results in portfolio for complete solution Tridonic, a worldleading supplier of lighting technology, and Casambi, a pioneer in wireless lighting controls, have


partnered to develop an innovative wireless light management solution. The partnership culminates in Tridonic’s basicDIM Wireless range of interoperable devices consisting of LED drivers, communication modules, sensors, a userinterface as well as software in the form of the 4remote BT App.


www.tridonic.com P


Hoval’s endtoend service delivery. The ageing boilers at Tower Bridge were


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struggling to meet space heating and domestic hot water requirements, so a decision was taken to upgrade them. The work coincided with the conversion of a 9m high exhibition space, with the addition of a mezzanine to create two new spaces. The design was carried out by consulting


engineers Brinson Staniland Partnership (BSP) and the new boilers, along with associated


apworth’s first association with the field of medicine began back in 1918, when it was designated as a specialist TB treatment


centre. Over the years it gained a pioneering reputation as a centre of excellence for transplants. Their success was formally recognised when it was granted a Royal title in 2017. However, as the years passed the hospital


infrastructure itself needed to be focussed on and this resulted in a new bespoke hospital being purpose built 16 miles from the original site. With 300 beds, 5 operating theatres and a critical care unit and 1800 staff, all the hospitals complex pumping requirements will be met by a small army of Grundfos pumps.


These pumps were carefully selected to


meet the stringent requirements of such a site and this includes a total of 32 Grundfos pumps that are comprised of inline, endsuction and variable speed circulators as well as pressurisation units and a range of ancillary equipment. Ensuring that sufficient water is available where and when it is needed are 2 x MPCE 4 pump booster sets. All commissioning was carried out by Grundfos Service. Today Papworth is a globally recognised


transplant centre that recently celebrated the 40th anniversary of its first successful heart transplant. With such an important reputation to uphold, Grundfos are delighted to be


new boiler feed support pumps were purchased, and their


Entering into the spirit of energy savings


illiam Grant started his


performance was measured over a 6 month period. The initial results showed electrical savings of £56k pa; the removal of the modulation valve saved £18k per boiler on maintenance costs; a reduction in breakdown and/or steam issues on site; improved steam quality and well as gas savings of up to 9%, all


of which has meant a very short payback in terms of ROI. Grants have been so impressed


with the results that there is a now planned schedule of Grundfos based pumps improvements in place. To find out more about how Grundfos could help you to save on energy costs on your particular application visit:


www.grundfos.co.uk


MRM rotary displacement meter  MID & OIML Approved


Theben’s nononsense, noknobs multipoint dimming


230V ‘no knobs’ multipoint universal LED dimmers. They enable users to dim and switch from anywhere in the room, not just one dimming point, and are compact enough to fit neatly behind your choice of retractive switch plate or above the ceiling in a suitable enclosure (wiring method determines the mounting location). Everything you need is offered: compatibility with


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all UK retractive wall switches, smooth dimming curves, universal load compatibility, up to 250W of LED dimming, scene setting (requires additional diodes) and a clever wake up/snooze function. Aesthetically DIMAX delivers what many customers


have been asking for: clean uncluttered multiple gang plate or grid switches without the clumsy knobs. Dimensions: 45mm x 45mm x 19mm . More information at:


www.theben.co.uk/dimax Royal Papworth Hospital enters new era


heben, widely recognized as the gold standard for LED dimming in the KNX World, has broken new ground again with its latest DIMAX plus


fiscal and nonfiscal gas measurement for industrial and commercial applications. Metreg measuring devices stand out thanks to their high precision and robust design with each meter being individually calibrated and tested to approved and international standards on traceable flow and pressure test benches. The different types of Metreg gas meter can all be fitted with various


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low, medium and highfrequency pulse outputs. All devices can be connected to various electronic ancillary devices such as Electronic Volume Converters (EVC’s) remote ATEX flow displays, data loggers and data telemetry devices for monitoring and reporting. The MRM rotary displacement gas flow meter is designed for fiscal


metering of natural gas and is approved according to the European requirements of EN12480, MID (2004/22/EG) and OIML R1371 & 2: 2012. The MRM rotary displacement gas meter is suitable to be installed in hazardous areas of Category 2 (Zone 1) II 2 G c IIC T4 X. The MRM rotary displacement gas meter is suitable for the following gases: Natural gas, town gas, propane, butane, ethylene, air, nitrogen, with further gases on request. Rotary gas meters are characterized by their very compact design and


playing their part in delivering a clean bill of health to this vital new structure. For more information on these and other pumps from the Grundfos family visit:


www.grundfos.co.uk Hoval heats Tower Bridge


he success of a boiler upgrade project at Tower Bridge relied heavily on close collaboration within the project team and


upgrade works, were installed by contractors T Brown Group. Hoval engineers worked closely with both parties in meeting a number of key challenges, ranging from providing design support to constructing the boilers insitu because of access issues. “Not least of these challenges was access to


the boiler houses through narrow walkways and corridors, steep stairwells, ship’s ladders and tight turnings,” recalled John Pearson of T Brown. “To overcome this, Hoval supplied the boilers in ‘complete knockdown’ (CKD) form, which were then assembled on site, fully welded and hydraulically tested by Hoval’s


Read the latest at: www.bsee.co.uk


engineers, and then casings, burners and controls were fitted,” he added.


www.hoval.co.uk


high accuracy. The MRM rotary meter requires no inlet or outlet straight pipe lengths or flow conditioning and is insensitive to severe gas flow fluctuations (discontinuous operation). The rotary meters MRM are manufactured with large measurement ranges due to the precision machining of the parts and a very reproducible assembly process. The standard calibrated measurement range for the MRM is 1:50. Extended measurement ranges up to 1:200 are optionally available according to approved and certified measurement ranges as shown in the table. The MRM rotary gas meters show very stable and reproducible


measurement results. The design of the housings and pressure containing parts has been optimized especially for outstanding operation, even under challenging torsional and bending stresses. The meters can withstand more than twice the specified torsional and bending stresses after installation as defined in EN 12480. The lifetime durability of the MRM rotary gas meter is very stable due


to the large dimensioned high precision ball bearings “Made in Germany” along with the high precision machining of the body and all moving parts. After machining all Aluminium parts are hard anodized for reduced friction and higher resistance to mechanical wear and tear or chemical attack. Utilizing the LF of HF pulser (reed contact) the volume pulse output sensors allow for remote monitoring, data recording and linking with Building Management Systems (BMS) as well as with gas volume correctors (EVC's) and our ATEX telemetry systems. For more information on the selection of Metreg gas meters call Bell


Flow Systems call 01280 817304 or email: mail@bellflowsystems.co.uk


BUILDING SERVICES & ENVIRONMENTAL ENGINEER DECEMBER 2019 35


etreg Technologies offers a complete product range for


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