INSTALLATION NEWS Hilton gets the Lochinvar treatment
Upping the stakes in low carbon heating
A new educational business venture near Towcester is the latest commercial building to benefit from low carbon, low cost heating supplied by an Ecodan air source heat pump. The SWAN Rural Enterprise Centre is the brainchild of Nick Brosnan, Heather Wilson and Sam Fitzgerald as part of the SWAN 14-19 Partnership. “At the SWAN Centre we aim to bring education and businesses together,” explains Mrs Wilson, formally the Work Related & Enterprise Manager of the SWAN school and now the Centre Manager. “Not only do we hope to inspire students to professionally learn to grow and cook their own food, but we also provide a forum for businesses to meet their employees of the future.”
A recently redeveloped luxury hotel in Cheshire has chosen Lochinvar to provide equipment for its new spa. The Doubletree by Hilton is a stylish hotel which is a restored 18th Century manor house, situated in beautifully landscaped gardens on the outskirts of Chester. A recent refurbishment project saw the hotel’s 110 existing guest rooms upgraded, while an extra 30 bedrooms and a new spa facility were built. As part of the project, a reliable system was needed to provide space heating and hot water. The contractor for the project, HE Simms Ltd, installed two Lochinvar CP-M100 boilers for the provision of space heating, alongside two 300CE Charger water heaters to ensure plenty of hot water was available for guests at the spa. CP-M is a range of wall hung gas-fired condensing boilers with outputs from 60 to 180kW from its six models. They feature a fully modulating burner and stainless steel heat exchanger, and provide high efficiencies and low NOx emissions. Other standard features include built-in weather compensation control and a cascade management system, which accurately matches output to system demand and provides optimum operating efficiency. Interrogation via laptop can provide historical data on boiler performance, allowing for any necessary running adjustments to be made.
The principles of system separation are well established and accepted as an efficient method of providing heating and hot water demand. Independent boilers and water heaters sized accordingly offer several benefits when compared to a system where the heating boiler provides both space heating and hot water via an indirect cylinder. Two Lochinvar Charger 300CE water heaters were chosen to cope with demand at the Doubletree Hilton, each of which has a storage capacity of 370 litres, but a hot water recovery rate of 1042 litres per hour based upon a 44°C temperature rise. David Pepper, Managing Director of Lochinvar, commented: “We’re pleased our equipment has been chosen as part of this prestigious upgrade for the Hilton. The installation of CP-M boilers and charger water heaters can provide an efficient solution, resulting in lower fuel consumption and consequent reductions on carbon emissions.”
New boilers for St George’s Crypt
Baxi Commercial Division has donated two Potterton Commercial high efficiency condensing boilers for the recent redevelopment of St. George’s Crypt, one of the UK’s foremost homeless charities. A £1.5 million redevelopment at the Crypt’s main site at Great George Street, Leeds has provided refurbishment of the existing facilities, together with an extension.
The new facilities include a number of individual bedrooms, a new reception area, modern training rooms for personal and life skills, a lounge for the residents and an expanded and refurbished restaurant with a new kitchen. This project has been made possible thanks to donations from charitable trusts, companies, private individuals and the Government’s Homes and Communities Agency which has granted almost £1million to the project.
The two Paramount two 95kW boilers were selected by KSP Consulting and a spokesman commented: “As space within the Crypt is very limited we chose the Paramount two boilers because they are high output, compact and are wall mounted. In addition they are very efficient with fanned flues.” The boilers serve steel panel radiators throughout the existing Crypt area, the newly modified areas and the new extension which has been added to the side of the Crypt and Church. Additional efficiencies have been achieved by locating the boilers in a new plantroom nearer to the radiator circuits, which has reduced the amount of distribution losses. The existing boiler has been maintained to serve the Church. Building services were installed by Ellison Energy Ltd. and the main contractor was Baum Construction Management Ltd.
The Paramount two range of wall-hung condensing boilers feature state-of-the-art heating technology with a combustion system which delivers energy efficiency levels up to 109% net as well as ultra low NOx which exceeds Class 5. These boilers have pre-mix, fully modulating control for complete heating flexibility and the aluminium/silicon alloy heat exchanger carries a lifetime guarantee. A user- friendly control panel with full text display of operational status avoids the inconvenience of checking codes or lights. Other features include inbuilt weather compensation, summer/winter changeover and time control facilities. The advanced ISR control system in this case operates with a simple room thermostat, with a remote control panel, although it can also be used with a fully integrated Building Energy Management System. The Paramount two boilers are available in six sizes, from 30kW to 115kW. For 80 years, St George's Crypt has offered care and shelter for homeless and needy people in the Leeds area and this latest project will enable it to offer even greater support. Modern training rooms offer courses in art and crafts, debt management and literacy, whilst the new lounge means that residents no longer need to leave the premises after each meal, as was the case previously. An IT suite is due for completion soon and this, together with the other new facilities, will enable the Crypt to place a greater emphasis on rebuilding the lives of clients, many of whom have drug and alcohol dependency issues and/or mental health problems.
14 BUILDING SERVICES & ENVIRONMENTAL ENGINEER NOVEMBER 2010
The team took funding from the East Midlands Development Agency (EMDA) to create a full, professional chef’s kitchen situated alongside a working garden to offer students from 14-19 the chance to firstly grow and then receive professional instruction on how to cook their own fruit and vegetables. The premises on a former farm, near Towcester, which had diversified into a business park, provide a stunning location offering all the advantages of a rural lifestyle for those that work there. A 5kW Ecodan air source heat pump delivers low temperature heating to the facility via underfloor heating. Ecodan harvests free, renewable energy from the outdoor air so that for every 1kW of electricity consumed, at least 3kW of heating is supplied to the property.
The whole system was fitted by ACS Renewable Solutions Ltd, which is a Mitsubishi Electric Approved Ecodan Installer. “We have fitted a polycarbonate panel to show off the underfloor pipe work,” explains Commercial Sales Manager, Ray Paice. “The water tank was installed in the loft space of the single-storey building and we have also made the access panel transparent so that students can see the lit installation.” The former dairy and barn next door provides a connected space with a working room where up to 24 students can work on a project for the day. In addition, there are smaller working rooms and a SWAN office and conference room. “We will be holding networking days for employers to meet students who are drawn from 11 Secondary Schools and two Further Education Colleges within South West Northamptonshire,” explains Sam Fitzgerald, SWAN Business Engagement Manager. “One of the key elements is ensuring that students understand the connection between the food they grow and the food they cook. “In the same way, we wanted a heating system that provided the absolute comfort needed but made the least impact on both our operating costs and our carbon footprint,” she added. “The beauty is that with the way ACS has installed it, the students can see and understand the elements involved.”
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