BSEE Advertorial
A high performance Carrier airtowater heat pump is delivering comfortable ambient condions for children and sta at Yew Tree Nursery in Axbridge, Somerset
INSTALLATION NEWS SPONSORED BY Heat pump delivers reliable, clean comfort for Yew Tree Nursery
Carrier’s AquaSnap 61AF heat pump was selected to replace an oil-fired heating system that was proving unreliable and inefficient. The Carrier unit captures low-grade heat energy from the atmosphere and upgrades it to generate hot water for use in the nursery’s underfloor heating, radiators and domestic hot water supply. Carrier, a world leader in high- technology heating, air-conditioning and refrigeration solutions, is a part of Carrier, a leading global provider of innovative heating, ventilating and air conditioning (HVAC), refrigeration, fire, security and building automation technologies. “We chose the Carrier system as it enables you to match the exact requirements of an application, rather than simply supplying a standard factory- specification product, as with some other manufacturers,” says Tom Mangnall, who led the project for contractor Somerset Mechanical. “The other major attraction was the plug-and-play design of the AquaSnap monobloc. It was delivered fully assembled, tested and charged with
refrigerant, and only required power and water connections, which saved time on site and reduced installation costs.” The unit, which has an A+ energy rating, includes a soft-start system for low power draw, and freeze protection to maintain operation when outdoor temperatures dip. Even in temperatures down to minus 20 degrees Celsius, the unit can provide domestic hot water at up to 55 degrees Celsius. In addition to providing clean, reliable, high performance heating, it freed up space at the nursery, as the bulky fuel-oil storage tanks required by the previous system are no longer needed “The AquaSnap 61AF heat pump is
uThe Carrier heat pump at Yew Tree Nursery supplies radiators, underfioor heang and domesc hot water
compact and very versatile, and ideal for heating and domestic hot water production,” said Russ Tyrrell, senior technical sales engineer, Carrier. “We believe it has huge potential for wider use in the UK, particularly in similar applications that currently rely
Balancing act
Rejuvenang a 1990s concrete and brick mulstorey car park and indoor market hall posed major complexies for the building services, solved through teamwork and the capability to adapt and evolve
Ty Pawb- Welsh for Everybody’s House- is the new £4.5m arts and cultural centre in Wrexham, commissioned by the town council. It offers two galleries, performance areas, shops, market stalls, studios, cafes in the remodelled building. The 3,660m2 space varies in height from standard 2.4m ceilings to a 9m atrium, with wood, steel mesh and industrial plastic sheet curtaining dividing up the spaces. The M&E supply and installation team of Margden Heating and Gilberts Blackpool on behalf of main contractor Wynne Construction has managed to ensure each area is comfortably aired without draughts, in a manner that compliments the industrial interior design and aesthetics. Gilberts supplied a variety of grilles, diffusers and plant louvres for the project. The range included 14 x Gilberts’ patented design GSJA/T thermally- actuated adjustable swirl diffusers with specially-engineered shallow (250mm deep) top entry plenum boxes, used in the higher spaces such as the atrium to ensure heated air circulated
down to floor level, 48 x specially-designed JN jet nozzles which deliver a powerful air stream over long distances, and 24 x PX plastic extract air valves to provide a fresh environment in toilets and cooking areas.
Gilberts’ Series C double deflection grilles were employed within tubular ducting, whilst Series DG square faced and Series PG perforated face multi- directional ceiling diffusers delivered the air supply through ceilings.
The air temperature and volumes through the diffusers are controlled by the building management system, also installed by Margden. Some are manually adjustable to enable users of the specific space to alter as required, and some are self- adjusting, depending on warmth and air quality. On the exterior, Gilberts’ WGF38 flanged frame integrated louvres, ranging from 0.23m to 1.4m, provide a neat, compact means of protecting and screening plant whilst ensuring an adequate flow of fresh air through.
Mikroflll by the sea life
Mikroflll has supplied the new Naonal Sea Life Centre aquarium with LPHW equipment, replacing the exisng LPHW boilers and direct gas flred hot water cylinder
Designed by Sir Norman Foster, The National Sea Life Centre is an aquarium with over 60 displays of freshwater and marine life in Brindley Place, Birmingham. Its ocean tank has a capacity of 1,000,000 litres of water and houses giant green sea turtles, blacktip reef sharks and tropical fish. It also boasts the only fully transparent 360-degree underwater tunnel in the UK, to get any closer you’ll have to get wet! Building services consultant, Engineering Design Partnership (London) put together a specification that incorporated replacing the existing decrepit LPHW boilers and direct gas fired hot water cylinder.
Mikrofill supplied the new scheme’s LPHW equipment that was installed by long standing M&E Contractor AC Engineers. It includes 5No Ethos 130kW wall mounted
condensing boilers with a total modulation of 50 > 1 and a Mikrovent 750 low loss header c/w air and dirt separator. In addition the HWS demand was catered for by the installation of an Extreme 300 litre loading cylinder that is designed to maximise the Ethos boilers efficiency by operating at a T of 30°C. The Wras approved Extreme was supplied c/w a 6 bar unvented kit and 3kW immersion heater and is capable of producing in excess of 2300l/hr at 60°C. For more information on these and other Mikrofill products, please contact the sales team on 03452 606020 or visit:
www.mikrofill.com
For the presgious redevelopment project at 21 Dartmouth Street, London, a premium occupant experience was essenal to complement the enviable locaon. This included the installaon of a TROX air condioning soluon
Air condioning soluon proves perfect for presgious Central London project The 21 Dartmouth Street building is situated in the
heart of St. James's Park, between Buckingham Palace and the Palace of Westminster, a short stroll from Sloane Square’s series of specialist boutiques. The address features a magnificent new rooftop, a majestic lobby and modern business amenities befitting its architectural grandeur. A total of 53,000 sq ft of office space is offered across nine floors, naturally commanding an extremely high degree of occupant comfort.
When specifying the air conditioning system for the building, the main contractor, mac group, and their M & E services consultants, Max Fordham, required a solution which would combine optimum comfort conditions with outstanding environmental performance. The solution, provided by air conditioning specialists TROX UK, incorporates precision-engineered air handling units, and provides the latest VAV capability featuring advanced zone control technology to deliver best-in-class energy efficiency and occupant comfort.
34 BUILDING SERVICES & ENVIRONMENTAL ENGINEER AUGUST 2019
uThe Carrier AquaSnap 61AF 045 airtowater monobloc heat pump just requires water and power connecons
on oil-based systems. It is an ideal solution for use in homes, apartment buildings, shops, offices, restaurants, hotels, warehouses.”
www.carrieraircon.co.uk
www.gilbertsblackpool.com
At the heart of the system are two TROX X-CUBE air handling units. Each X-CUBE incorporates TROX’s integrated controls package, whereby damper actuators, pressure, temperature and humidity sensors as well as heat recovery control and fan control strategy are linked into the X-Cube digital control network. Both units incorporate thermal wheels with pre-programmed strategies, selected to meet BVU efficiency in accordance of the ErP 2018 standard. This is the highest level of smart technology, combining pre- set algorithms, developed by TROX, to facilitate rapid reactions to changes in building load. To deliver outstanding levels of comfort and energy efficiency, the system utilises TROX’s X-AIRCONTROL variable air volume functionality. This is integrated seamlessly with the X-CUBEs and with a TROX X- AIRCONTROL Zonemaster to address the needs of the different occupied spaces across the site.
www.troxuk.co.uk Read the latest at:
www.bsee.co.uk
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